Public report of josefs/Gradualizer, published 23 October 2026. It has the same score, grades and number of
findings as the full report. The details of security findings (where they are in the code, which known
vulnerabilities and which passwords or keys were found) are left out, so nobody can use them against the project.
Public
Executive reportMeasured under the Code Assurance Index, an open standard for code quality, using its published scoring rules (rubric version 2026.10.5). Watchdog signed this survey and filed it in the standard's public register, where anyone can look it up by its survey ID. Check this survey →
Signed and filed in the standard's public register, 23 October 2026, 18:28 UTC · Survey ID cd_e5a9be200da245778ad7fa9e0fc3bf2d
josefs/Gradualizer
Measured 23 October 2026, 18:27 UTC, at code version 23533d7
No regression since the last survey
A regression is a drop of 0.5 points or more in the score, or of 2.5 or more out of 10 in a dimension, since the last survey.
CAI scoreAdequate
CriticalWeakAdequateStrongExemplary
Up 2 since the last survey
The score is built from these lenses. Each lens grades one area of the code, such as how easy it is to change or how well it is protected. The weakest lens counts most, so one weak area pulls the score down instead of being averaged away.
A small codebase: 10,246 lines of product code in 1 project, tests not counted · Estimated rebuild effort: about 0.2 person-years · Weakest lens: Maturity, 52
Findings by how serious they are
9 critical142 serious41 minor
37 dimensions are left out of the score. For each one, Watchdog either couldn't measure it in this code, or found no evidence of the safeguard it looks for, such as a tested backup restore. They count neither for nor against the score, and Limitations lists each one with its reason.
This survey was produced by
Watchdog
Producer
Canine Development
Analyzer
Watchdog engine 1.0.0
Measured
23 October 2026, 18:27 UTC
A measurement, not a certificate. The Code Assurance Index records a number
together with the evidence it was worked out from, so anyone can recalculate it, but it doesn't certify or guarantee
the code. The standard was written by Canine Development, which also builds Watchdog. It is open to any tool that
implements it, and today Watchdog is the only one that does.
The score is deterministic, which means the same code always gets the same score. Watchdog works it out with tools that follow published rules, and an AI model never decides it, so anyone who applies the same rules to the same code gets the same number. How it is done is explained under Methodology ▸
35of 38 dimensions measured by tools. The other 3 are advisory notes from an AI model, which explain the code but don't count towards the score.
184of 192 findings point to an exact file and line, so you can open each one in the code. The other 8 concern the repository as a whole, such as missing documentation.
38dimensions across 6 lenses, read from 10,246 lines of product code in 1 project.
josefs/Gradualizer scores 64 out of 100 and is rated Adequate, while five of its six lenses score higher still: Architecture and Event Sourcing at 100, both rated Exemplary, Production Readiness and Code Health at 76, both rated Strong, and Security and Compliance at 67, rated Adequate. The project hasn't declared a stable release yet, so its lenses are rated against a lower bar than a released product's, while the score itself is worked out as for any repository.
The score is lower than those five because the weakest lens counts most, and here that is Maturity, which scores 52 and is rated Adequate. Its Knowledge Freshness dimension scores 0 out of 10, and until that reaches 4, Maturity can't be rated higher than Adequate. The first actions are to resolve the 1 Hotspot finding(s) in Churn × Complexity Hotspots and to resolve the 3 Orphaned knowledge finding(s) in Knowledge Freshness, and if Maturity rose to 70, the score would rise from 64 to about 72.
Nine findings are critical: six in Static Analysis (SAST) and three in Knowledge Freshness.
Watchdog couldn't measure 35 dimensions in this code, among them Code Coverage, Dependency Hygiene and License Compliance, so they are left out of the score. The product code is 10,246 lines, which would take an estimated 0.2 person-years, around €24,000, to rebuild.
A lens is capped at Adequate while one of its dimensions scores below 4 out of 10, however well the rest of the lens does. That way a serious problem in one place always shows in the lens's rating.
How the score is built: what each lens counts forThe lenses don't count equally. The weakest lens counts most, the next weakest a little less, and so on, so a weak area pulls the score down instead of being averaged away. In the bar below, each part's width shows how much that lens counts and its colour shows its rating. Improving the widest part moves the score most, and as that lens improves, it counts for less, because another lens becomes the weakest.
Watchdog compares every finding with the previous survey's. A finding that has only moved to another line in the same file counts as the same finding, so only new findings appear here. Advisory notes from the AI model are left out, because the model words them afresh in every survey.
Fixed since the last survey: 1 finding
This critical or serious finding was in the previous survey, on 9 October 2026, and is gone from this one.
Supply-chain Provenance & Signing REDACTED
Rebuild cost: about €24,000 · Estimate
Cost to rebuild
€7,900 to €40,000, for 131 to 417 hours of work, about 0.2 person-years for one engineer
Difficulty of the problem
Standard, judged from the kind of software and how it is built. Code that solves a harder problem, such as payments or medical bookings, costs more per line to write.
Quality factor
×0.9 at a score of 64. Better code takes more work to write, so the factor is ×1.0 at a score of 70, lower below it and higher above it.
Size
Small: 10,246 lines of product code
How the estimate is made: Watchdog prices the hours a team would need to write this code again, at €60 to €95 an hour. Declarations and boilerplate are priced at a fast rate and logic at a slower one, and the logic is then multiplied by the difficulty of the problem and by the quality factor. The estimate can be about 30% off either way, and it moves most with the hourly rate and the difficulty. For this code, every line is priced as straight logic, which keeps the estimate on the low side.
Top priorities
The three actions that raise the score most for the work they take. The full ranked list is in the Roadmap.
1
Resolve the 1 Hotspot finding(s) in Churn × Complexity Hotspots — start with typechecker.erl.
Write one short document per decision, giving its date, the situation, the decision and its consequences, and keep them together with your other design documents. A docs/adr folder with each file named by number and title is the easiest place to find them.
Each conclusion below combines several dimensions into one point that no single dimension shows, and lists the measurements it rests on.
Where the investment is most exposed · Value at risk
This code would cost about €24,000 to build again, about 0.2 person-years of work. Its weakest lens is Maturity, at 52 (Adequate). Maturity is about how well the project explains and looks after itself, which decides whether a new developer, or a new supplier, can take over. Because the weakest lens counts most in the score, work on Maturity also moves the score most.
Based on: the rebuild estimate · the Maturity grade · how much each lens counts
What to do: Start with the Maturity actions in Top priorities.
If you do one thing first · First action
Resolve the 1 Hotspot finding(s) in Churn × Complexity Hotspots. Of all the actions in this report, it raises the score most for the work it takes: about 8 points for medium effort, because it clears the 1 Churn × Complexity Hotspots findings. The next survey will show the change in the score.
Based on: the ranked actions in Top priorities, by score gain and effort
Findings mapped to OWASP categories; the specific CVEs/secrets are in the Security dimension cards below and findings.md (redacted only on the public version of this report).
OWASP category
Findings
Severity
A03:2025 — Software Supply Chain Failures
7
Medium
A05:2025 — Injection
6
High / Critical
Roadmap
Begin by documenting significant design decisions in a dedicated folder to establish a clear architectural record. Next, address knowledge freshness by resolving orphaned files and knowledge entries, prioritizing gradualizer_type.erl, gradualizer.erl, and typelib.erl. Finally, reduce technical debt by fixing the churn and complexity hotspot in typechecker.erl and updating the README.md to improve documentation quality.
Ranked by impact ÷ effort. "Helps" is the estimated gain on the 0–100 health score.
Do this
Helps
Effort
Dimension
Resolve the 1 Hotspot finding(s) in Churn × Complexity Hotspots — start with typechecker.erl.
Record your significant design decisions. Write one short document per decision, giving its date, the situation, the decision and its consequences, and keep them together with your other design documents. A docs/adr folder with each file named by number and title is the easiest place to find them.
Per-file score 0–10 — a quality signature. Of 19 files carrying findings, judged against the Preview bar: 0% slop · 53% mixed · 47% near-clean.
File
Score
Band
Worst signal
REDACTED
3.7
Mixed
Static Analysis (SAST): High: REDACTED
REDACTED
3.7
Mixed
Static Analysis (SAST): High: REDACTED
REDACTED
3.7
Mixed
Static Analysis (SAST): High: REDACTED
src/typechecker.erl
6.0
Mixed
Explicit Debt: TodoComment
src/gradualizer_fmt.erl
6.0
Mixed
Explicit Debt: TodoComment
src/gradualizer_db.erl
6.0
Mixed
Explicit Debt: TodoComment
src/typelib.erl
6.0
Mixed
Explicit Debt: TodoComment
test/property_test/gradualizer_prop.erl
6.6
Mixed
Explicit Debt: TodoComment
src/gradualizer_bin.erl
6.7
Mixed
Explicit Debt: FixmeComment
test/property_test/gradualizer_gen.erl
6.9
Mixed
Explicit Debt: TodoComment
src/gradualizer_int.erl
7.3
Near-clean
Explicit Debt: TodoComment
src/absform.erl
7.3
Near-clean
Explicit Debt: TodoComment
src/user_default.erl
8.2
Near-clean
Explicit Debt: TodoComment
src/gradualizer_type.erl
8.2
Near-clean
Explicit Debt: XxxComment
src/gradualizer_highlight.erl
8.2
Near-clean
Explicit Debt: TodoComment
src/gradualizer.erl
8.2
Near-clean
Explicit Debt: TodoComment
test/typelib_tests.erl
8.2
Near-clean
Explicit Debt: TodoComment
test/typechecker_tests.erl
8.2
Near-clean
Explicit Debt: TodoComment
README.md
9.3
Near-clean
Documentation Quality: Documentation: no installation or build instructions
How the grades work
Every finding carries one of four grades. Three say how serious it is. The fourth says this
survey could not settle it — and it is a grade, not a gap.
Critical — 9
A definite problem that already costs you something and drags the score down: a
missing authorisation check, a dependency with a known exploit, a build that does not reproduce. Failure here
tends to cause failures elsewhere.
Serious — 142
Likely wrong, but not failing yet. It degrades
the codebase over a longer horizon and can cause failures elsewhere — not urgent this week, not something to
carry for two years either.
Minor — 41
Recorded, with no effect on how the codebase functions.
Present so the survey is complete, not because it needs doing.
Could not be resolved — 37
Something this survey could not settle
from the outside, and which could be critical or serious. Either a control was required and no
positive evidence of it exists in the repository — a backup job that nothing shows was ever restored from proves
nothing about restores — or our own analysis could not run over that part of the tree. This is not a clean
result. These are excluded from the score rather than awarded a pass, so the number on the cover neither
rewards nor penalises them: if you act on this survey without resolving them, you carry that risk yourself. Each
one is named under Limitations.
Methodology & how to trust this report
Watchdog is a deep, periodic assessment — run each sprint, monthly, or quarterly, taking the time to go wider and deeper than a quick check and surfacing in one coherent report what you'd otherwise piece together from a dozen separate tools. It scores deterministically: the same commit yields the same score, every run. 35 of 38 evaluated dimensions are computed purely by tools and static analysis (confidence 1.0); 3 documentation/naming judgement(s) are LLM-assisted and labelled advisory. Overall confidence is 0.9 — the weighted average across measured dimensions; it falls as more of the score leans on LLM-assisted judgement and rises when it's fully tool-backed.
Every figure here is one of three kinds, and we label which: ✓ Measured — a deterministic fact (LoC, complexity, coverage); ~ Modeled — an estimate from a stated model (cost, effort, value-at-risk), always a range with its assumptions, never a precise fact; ◐ Advisory — an LLM prose judgement. We never present a modelled estimate as if it were measured. Perfect or absent scores carry their provenance too (ADR-0011): ✓ Tool-verified means the property itself was measured across the surface; ○ Nothing flagged means the probes came back clean — a claim bounded by what a repository can show; ⊘ Not evidenced means a working control (a tested restore, an automated rollback) showed no positive evidence — absence of evidence is not evidence of a control, so it's excluded from the score rather than awarded a spurious 10; ◐ Sampled · advisory marks an LLM verdict over a bounded sample — advisory, never a deterministic measurement.
What we checked — 38 dimensions across the health lenses
Each chip is a dimension scored from real signals across architecture, testing, dependencies, security & compliance, documentation, git-history and code quality — in one coherent pass. A surface report typically covers a handful.
How to trust any code-health report — three questions
Can you open the finding? Real findings cite a repo-relative file and line you can open at the cited line — never an absolute scratch path. Here, 184 of 192 do; the remainder are repo-wide signals — a dimension-level measurement, not a single line. (Every path in this report is repo-relative by construction: paths are normalized at the producer and the report is rejected if any rooted path leaks through.)
Is there a tool behind the number? Every score below names the method that produced it — Roslyn, git, a scanner, or (for a handful of documentation/naming dimensions) an LLM labelled sampled · advisory — not a narrative.
Does re-running give the same result? Run it again on the same commit and the score — and this report, byte for byte — is identical. A report whose numbers move between runs is describing the run, not the code.
This report answers yes to all three. That's the bar to hold any assessment to.
Tools & methods
The actual versions used this run (captured at analysis time) — re-run on the same commit for the identical score.
Method
Backs
Version
Evaluator
Roslyn static analysis
Complexity, cohesion, coupling, dead code, API surface, layering
What ran differently this time — a tool absent, degraded, or that fell back to an estimate. Named openly, not folded silently into the scores. A degraded run also records its exact cause in diagnostics.md.
D8 Code Coverage — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Coverage NOT READ here — but this repository measures it: a coverage step in CI (`covertool`) shows that coverage is collected and tracked in your own CI. The built-in collector has no runner for this ecosystem (.erl), so the analyzer could not read the number — a gap in the analyzer's language coverage, not an unmeasured repo. Not scored. To have the real number read, produce a coverage report in a standard format (`rebar3 do eunit --cover, cover` (or covertool for Cobertura XML)) and commit it — a hosted scan measures a clone of the repository, so a report that exists only in a working tree, a CI runner's or your own, never reaches it; the artefact is commonly gitignored, so `git add -f` that one file (or un-ignore its path) and commit it alongside the code it measures. You can widen what we reach: optional: produce a coverage report in a standard format (`rebar3 do eunit --cover, cover` (or covertool for Cobertura XML)) and commit it — a hosted scan measures a clone of the repository, so a report that exists only in a working tree, a CI runner's or your own, never reaches it; the artefact is commonly gitignored, so `git add -f` that one file (or un-ignore its path) and commit it alongside the code it measures — then the real number is read on the next scan.
D12 Dependency Hygiene — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Not scored — 1 rebar3 declaration(s) across 1 `rebar.config` and 0 package(s) pinned by a committed `rebar.lock` were read for PINNING discipline (0 defect(s) reported), but the outdated/retired signal needs hex.pm, which publishes none of these packages, so this dimension's own question is only partly answered. NOT a finding that these dependencies are current or healthy.
D14 License Compliance — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. Not scored — this repository's package manifest is not parsed for licence data yet. A gap in the analyzer's language coverage, NOT a finding that the repository's licenses are compliant (a rebar.config / erlang.mk DEPS (Hex)), which this pass does not parse yet — so this dimension asserts nothing about this repository's licensing in either direction.
D22 Internal API Consistency — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. D22 identifies the intentionally-exposed surface from `IsPackable` and `.Contracts` project names, MSBuild conventions read off the loaded project set. This target exposed no such projects, so the probe never ran; this says nothing about whether the repository has a public API. This repository commits no C#/VB source at all, so there was never an MSBuild project set to read these conventions off. That is OUR side and it is a COLLECTOR gap, not an environment fault: it declares a published package (src/gradualizer.app.src), but no published-package marker D22 reads admitted any project here, so this ecosystem's public API has no collector, and the remedy is to write one — no change to the scan image can close it.
D44 Platform End-of-Life — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This dimension reads a project's own statement about the platform it runs on: a TargetFramework in a .NET project file, a .nvmrc or .python-version, a capped requires-python, a Rust toolchain file or Cargo.toml rust-version, a .go-version, .java-version, .ruby-version, .tool-versions or .sdkmanrc, a go.mod go directive, a Maven or Gradle Java level or toolchain, a Gemfile's ruby directive, a mix.exs elixir requirement, a rebar.config minimum_otp_vsn, a pubspec.yaml SDK constraint, a build.sbt scalaVersion, or a framework major pinned by a dependency constraint. This repository carries none of them, so nothing about its platform was established. That is a gap in this analyzer's coverage, NOT a finding that the platform is supported — a language whose runtime is declared elsewhere (Package.swift, a Dockerfile) is simply not read here yet.
AX6 Interface segregation — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check is computed over the public interfaces this run's compilations declare, and none was loaded, so it had nothing to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
C1 Data Protection — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These personal data controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks personal data controls.
C2 Access Controls — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These authorization controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks authorization controls.
C3 Audit Trail — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These audit controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks audit controls.
C4 Data Retention — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These retention controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks retention controls.
C5 Data-Subject Rights — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These data-subject rights controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks data-subject rights controls.
GD1 Unfinished & placeholder code — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, F#, JavaScript/TypeScript, Dart, Ruby and Scala source only, and no C#, F#, JavaScript/TypeScript, Dart, Ruby or Scala was found, and this repository's Erlang, haskell is not read yet, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
IC1 Incompleteness & stubs — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, JavaScript/TypeScript, Java, Dart, Ruby and Scala source only, and no C#, JavaScript/TypeScript, Java, Dart, Ruby or Scala was found, and this repository's Erlang, haskell is not read yet, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
P5 DR & Backup — not measured this run — This is a true statement about the repository that carries nothing for its owner to act on, so it is reported here rather than as a defect in their code. No backup/snapshot/replication config, RTO/RPO or restore-procedure documentation was found — and no production persistence was detected either (no data-access packages, no data-store services, no database resources), so there is nothing in this repository whose loss a DR control would recover. If this system's data lives in a platform or ops repo we can't see, that's where the DR evidence belongs.
P8 Schema migrations — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads EF Core usage in C# and the schema tooling its file scan recognises only, and no .NET project was loaded, and this repository's language is not one the scan models, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
S1 Web-Security Posture — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. These web-security controls are read from declarative annotations, request middleware, entity/column names and guard methods in a C# source model, and none was loaded on this run, so there was nothing to gather. That is a gap in this analyzer's language reach — not a finding that the repository lacks web-security controls.
X1 Async correctness — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Python, Dart, Ruby, Scala, Rust and Kotlin source only, and no C# was loaded and no JavaScript/TypeScript, Python, Dart, Ruby, Scala, Rust or Kotlin was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X12 Unreachable branch — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Python, Dart, Ruby, Scala and Kotlin source only, and no C# was loaded and no JavaScript/TypeScript, Python, Dart, Ruby, Scala or Kotlin was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X13 Undrained process stream — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Python, Dart, Ruby, Scala and Kotlin source only, and no C# was loaded and no JavaScript/TypeScript, Python, Dart, Ruby, Scala or Kotlin was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X14 Bypassable address classification — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, Kotlin, Scala, Rust, Swift, Ruby, Dart, PHP, Python and Go source only, and no C# was loaded and no JavaScript/TypeScript, Java, Kotlin, Scala, Rust, Swift, Ruby, Dart, PHP, Python or Go was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X15 Unvalidated length from an untrusted reader — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, Kotlin, Scala, PHP, Ruby, Python, Go, Rust and Dart source only, and no C# was loaded and no JavaScript/TypeScript, Java, Kotlin, Scala, PHP, Ruby, Python, Go, Rust or Dart was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X16 Unfloored truncation loop — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, PHP, Dart, Ruby, Scala and Kotlin source only, and no C# was loaded and no JavaScript/TypeScript, Java, PHP, Dart, Ruby, Scala or Kotlin was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X17 Uncapped recursion over a caller-supplied document — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Python, Dart, Ruby, Scala and Kotlin source only, and no C# was loaded and no JavaScript/TypeScript, Python, Dart, Ruby, Scala or Kotlin was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X18 Disposal-pattern correctness — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, Kotlin, Dart, Ruby, Scala and PHP source only, and no C# was loaded and no JavaScript/TypeScript, Java, Kotlin, Dart, Ruby, Scala or PHP was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X19 Unrestored process-global state — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, Kotlin, Python, Dart, Ruby, Scala and PHP source only, and no C# was loaded and no JavaScript/TypeScript, Java, Kotlin, Python, Dart, Ruby, Scala or PHP was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X2 Cancellation propagation — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Go, PHP, Dart, Kotlin, Ruby, Scala, Java, Python and Rust source only, and no C# was loaded and no JavaScript/TypeScript, Go, PHP, Dart, Kotlin, Ruby, Scala, Java, Python or Rust was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X21 Side-effecting pattern guard — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript (Vue and Svelte components included), Java, Kotlin, Ruby, PHP, Python, Dart, Rust and Scala source only, and no C# was loaded, no JavaScript/TypeScript, Java, Kotlin, Ruby, PHP, Python, Dart, Rust or Scala was found, and this repository's Haskell is not read yet, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X22 Contradicted release guard — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and Java, TypeScript/JavaScript, Python, Dart, Ruby, Scala, Kotlin and PHP source only, and no C# was loaded, and this repository's Haskell is not read yet, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X23 Unguarded diagnostic materialisation — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, F#, Python, Dart, Ruby, Scala, Kotlin and PHP source only, and no C# was loaded and no JavaScript/TypeScript, Java, F#, Python, Dart, Ruby, Scala, Kotlin or PHP was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X24 Document value interpolated into markup unescaped — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, Scala, Ruby and Python source only, and no C# was loaded and no JavaScript/TypeScript, Java, Scala, Ruby or Python was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X26 Unsynchronised callback handoff — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and Java, Kotlin, Scala, Go, Swift, Python and Ruby source only, and no C# was loaded, no Java, Kotlin, Scala, Go, Swift, Python or Ruby was found, and this repository's Haskell is not read yet, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X29 Per-element action decided by a fixed element — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, Rust, Dart, Ruby, Scala and Kotlin source only, and no C# was loaded and no JavaScript/TypeScript, Java, Rust, Dart, Ruby, Scala or Kotlin was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X30 Support guard that admits what it rejects — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and Scala, JavaScript/TypeScript, Java, Kotlin, Python, PHP, Go, Rust, Dart and Ruby source only, and no C# was loaded and no Scala, JavaScript, TypeScript, Java, Kotlin, Python, PHP, Go, Rust, Dart or Ruby was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X4 Structured logging — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax, and JavaScript/TypeScript, Java, Kotlin, Python, PHP, Dart, Ruby, Scala and Rust source only, and no C# was loaded and no JavaScript/TypeScript, Java, Kotlin, Python, PHP, Dart, Ruby, Scala or Rust was found in this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X5 Nullable reference types — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C# syntax and MSBuild project configuration, TypeScript source and its tsconfig files, Java source and its package and module declarations, PHP source and its PHPStan and Psalm configuration, Dart source and its pubspec language version, Ruby source and its Sorbet and Steep configuration, Scala source and its build's explicit-nulls, WartRemover and Scalafix settings, and Kotlin source only, and no C# was loaded, no TypeScript was found, and this repository's Haskell is not read yet, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
X7 Silent fallback defaults — not measured this run — Watchdog could not measure this here. That is a gap on our side — a collector, parser or image we have not built yet — and it is neither a defect in this repository nor evidence that the check would have passed. This check reads C#, Python, TypeScript/JavaScript, Rust, Go, Java, Kotlin, Scala, PHP, Ruby, Swift and Dart syntax only, and no C#, Python, TypeScript/JavaScript, Rust, Go, Java, Kotlin, Scala, PHP, Ruby, Swift or Dart was loaded for this repository, so it had nothing of this repository's product to read. That is a gap in this analyzer's language reach — not a finding that the repository is free of what this check looks for.
Repo exclusion declarations (.gitattributes linguist-generated/vendored, .editorconfig generated_code): none declared — every source file was scored.
Limitations & what we did not check
Watchdog assesses the repository exactly as committed, and only the repository. By design it does not reach outside the source tree: the live cloud account, the running CI/CD pipeline, the host's branch-protection and approval rules, the production configuration, or a restore actually exercised against a backup are all out of scope. That boundary is a feature, not a gap — a repo-relative, deterministic scan re-runs identically on any commit and every finding opens at a real file and line, where a live audit can neither be reproduced nor traced. The visible consequence is that controls which leave no in-repo evidence are reported as "not evidenced" and excluded from the score rather than awarded a number a static scan cannot justify.
Per-dimension blind spots
For each dimension that was measured, what a static, repo-only scan structurally cannot see — the honest edge of the measurement, not a failure of it.
D1 Cyclomatic Complexity: Cyclomatic complexity counts branches statically — it cannot tell an essential decision tree from accidental tangle, nor see complexity that lives in data or configuration (large switch-case token tables, DSL lexers/parsers, data-as-code rule tables) rather than control flow: a tokenizer's many single-character cases read as high complexity though each branch is trivial.
D2 Cognitive Complexity: Cognitive-complexity heuristics approximate how hard code is to follow; genuine domain difficulty and well-named intent that eases reading are not captured.
D3 God Classes: "God class" is sized by members and responsibilities visible in the type — a deliberately broad facade over a coherent subsystem can read the same as an accidental grab-bag. For front-end JS the file-length check is cohesion-aware (a single-responsibility module — one class/IIFE — earns a 3× threshold), but cohesion is approximated from top-level declarations, not true dependency structure.
D4 Code Duplication: Duplication is token-similarity — an in-process token-stream comparison over sliding windows, with type-aware normalization — so it finds copy-paste, not semantic duplication expressed differently. Committed machine-written code (scaffolded migrations, designer/codegen output, protobuf/OpenAPI stubs, model snapshots) is EXCLUDED — its repetition is the tool's, not the team's — so the score reflects hand-written duplication only.
D6 Cohesion (LCOM4): LCOM4 cohesion is syntactic — it infers connectivity from which methods touch which fields/methods by name, not from real runtime behaviour or intent.
D11 Test Reliability: Flakiness is inferred from history/markers — Watchdog runs the suite once (for coverage), not the repeated runs under varied conditions that reveal nondeterminism, so a flaky test never recorded as failing is invisible here.
D13 Secret Scanning: Secret detection is signature- and entropy-based on the current tree — a secret that does not match a known pattern, or one already rotated, will not be flagged (a clean scan is "nothing matched", not "no secrets exist").
D15 Churn × Complexity Hotspots: Churn hotspots come from git history — a freshly imported or squashed repository has no churn signal, and recent rewrites can mask a historically risky file.
D16 Bus Factor: Bus-factor is a time-decayed model of commit attribution (who has recently, repeatedly worked a file), not comprehension — pairing, review and reading-without-committing spread knowledge it can't see; bot commits and shared accounts still distort it.
D17 Explicit Debt: Acknowledged-debt signals (TODO/FIXME, suppressions, dead code) are textual — undocumented debt that nobody marked, and debt that lives in design rather than annotations, is invisible. Committed machine-written code (scaffolded migrations, designer/codegen output, generated stubs) is excluded — it is never the team's dead code to delete.
D19 Documentation Quality: Documentation quality is judged by an LLM over a bounded sample of docs — it reads what is written, not whether the docs match the running system, and it is advisory, not a measurement. Its critique rows are drawn from a closed category vocabulary and each row means the same thing in every run, so two scans can be compared row by row; the SET that fires is still a sample, and does not repeat exactly. Measured on one frozen input, six scans at one engine SHA: 2-5 critique rows per scan, 8 distinct rows across the six, 3 of those 8 seen in only one scan. So a D19 row is evidence about the documentation, but a COUNT of D19 rows is not a quantity — never read a change in it as an improvement or a regression.
D21 Naming Consistency: Naming quality is an LLM judgement over a bounded sample — it assesses clarity/consistency of the names it sees, not domain-correctness, and is advisory.
D26 Project Cohesion: Project focus is sized from members/namespaces per project — a project that is broad by deliberate design reads the same as one that has sprawled.
D27 Navigability: Indirection/navigability is structural — it measures hops to follow a call, not whether that indirection buys real flexibility or just ceremony.
D28 Secrets (history): Secret-history scanning sweeps the git log for known patterns — a secret that predates the available history, or never matched a signature, is not found (clean means "nothing matched in the history we can see").
D29 Static Analysis (SAST): SAST findings are pattern-based (semgrep) — it finds classes of bug it has rules for; logic flaws, auth/authorization gaps and issues needing runtime context are out of reach (and clean means "no rule matched").
D34 Knowledge Freshness: Freshness is decayed commit RECENCY, not comprehension — code read often but rarely committed reads as orphaned, and stable code that genuinely needs no changes is penalised the same as forgotten code; bot/squash commits distort it like the bus factor.
D35 Change Coupling: Change coupling is co-change in COMMITS — files split across separate commits, or coupled only through a shared config/build step, read as uncoupled, and a sweeping commit (rename/format) is excluded so it doesn't couple everything. It shows that files change together, not WHY: a high coupling can be a healthy cohesive pair as readily as a hidden leak.
AX10 Code composition: Role is inferred from namespace/folder convention, not semantics — a domain concept living in a folder named "Services" reads as application, and the split is lines-of-code, not business value. The business-logic-share score is a SOFT, FLOORED signal: it contributes to the Architecture lens but is floored at the Critical gate, so an infrastructure-heavy design (a gateway, an ETL, a driver) is legitimately low without being nuked to zero.
AX9 CQS / query purity: Handlers are found by interface/name convention — a query handler using neither is not seen. Mutation is a resolved write/publish invocation (SaveChanges/repository/bus), so a write hidden behind a hand-rolled wrapper, reflection, or a string-keyed service locator resolves to a non-persistence type and isn't flagged; it detects that a query writes state, not whether the write is a legitimate read-side cache update. Clean means "no resolved write/publish in a query body", not a proof of CQS purity.
M4 Documentation accuracy: Onboarding quality is an LLM read of the docs/setup present — it cannot run the onboarding or measure how long a real new joiner takes; the verdict is sampled and advisory.
P6 Release Hygiene: Rollback/observability controls are inferred from repo artefacts (pipelines, dashboards-as-code) — controls configured in external tooling, with no in-repo trace, cannot be credited.
The LLM boundary
LLM-set scores this run (3): D19, D21, M4 (model: Local LLM). For these, a model reads a bounded sample and sets the numeric score; each names its own sample and method on its card. They are sampled and advisory by design: they vary at the margins between runs and are never a deterministic measurement. Every other score in this report is tool-computed at confidence 1.0.
What it measures: How tangled the control flow is — methods with many branches are hard to test and change.
Method: Cyclomatic complexity per method (1 + decision points), computed exhaustively across production source; test projects separated by convention. Deterministic.
16 function(s) exceeded the cyclomatic complexity threshold of 15; the worst was typechecker.do_type_check_expr_in at 124. A further 12 function(s) were over the threshold but excluded as flat dispatchers (a long switch/match over independent cases: many branches, almost no nesting), the largest being gradualizer_fmt.describe_expr at 32 — they are counted neither in the figure above nor in this dimension's score. 3 files carry no cyclomatic complexity row at all for this reason — every one of their over-threshold functions was excluded, so the exclusion is disclosed nowhere in the file itself: src/gradualizer_lib.erl (gradualizer_lib.pick_value at 30), src/gradualizer_cli.erl (gradualizer_cli.parse_opts at 24), src/gradualizer_int.erl (gradualizer_int.int_range_to_types at 17). They are named here because the per-file figures other dimensions report are taken BEFORE this exclusion, so such a file can show a high maximum complexity elsewhere in this report and nothing here, with nothing to reconcile the two.
+ 11 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Bring the 16 bodies over 15 down to 15 or less in Cyclomatic Complexity — start with typechecker.do_type_check_expr_in (cyclomatic 124), typechecker.glb_ty (cyclomatic 94), typechecker.do_type_check_expr (cyclomatic 82). — This score is capped by its worst body, so a finding fixed alone moves it by almost nothing — the next one down takes its place. Refactoring these 16 together lifts Cyclomatic Complexity from 5.8 to about 10.0/10, projected with the scoring formula itself and assuming each lands exactly at 15.
Enforce Cyclomatic Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d1_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: How hard the code is for a person to follow, beyond raw branching.
Method: Cognitive complexity per method (Sonar-style nesting-penalized score), computed exhaustively over production code, excluding test projects. Deterministic.
+ 6 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Bring the 11 bodies over 15 down to 15 or less in Cognitive Complexity — start with typechecker.do_type_check_expr_in (cognitive 64), typechecker.glb_ty (cognitive 59), typechecker.refine_ty (cognitive 37). — This score is capped by its worst body, so a finding fixed alone moves it by almost nothing — the next one down takes its place. Refactoring these 11 together lifts Cognitive Complexity from 7.6 to about 10.0/10, projected with the scoring formula itself and assuming each lands exactly at 15.
Enforce Cognitive Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d2_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
D3 · God Classes8.8 / 10Strong✓ Tool-verified
What it measures: Over-large classes that try to do too much ("god classes").
Method: God-class detection by line and method-count thresholds per logical type (partial classes unified), filtered for generated code and registration/contract false positives. Deterministic.
Resolve the 2 FileTooLong finding(s) in God Classes — start with typechecker.erl, gradualizer_fmt.erl. — One of this dimension's main actionable groups (2 warning-level).
Resolve the 1 TooManyFunctions finding(s) in God Classes — start with gradualizer_db.erl. — One of this dimension's main actionable groups (1 warning-level).
Enforce God Classes in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d3_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Copy-pasted code that should be shared instead.
Method: Code duplication via token-stream sliding windows with type-aware normalization (locals masked, type names preserved), density-scored per KLoC of production code. Deterministic.
+ 5 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Resolve the 4 Duplicated block (5 lines × 2) finding(s) in Code Duplication — start with typechecker.erl (4). — One of this dimension's main actionable groups (4 warning-level).
Resolve the 2 Duplicated block (6 lines × 2) finding(s) in Code Duplication — start with typechecker.erl (2). — One of this dimension's main actionable groups (2 warning-level).
Resolve the 1 Duplicated block (17–18 lines × 2) finding(s) in Code Duplication — start with typechecker.erl. — One of this dimension's main actionable groups (1 warning-level).
Enforce Code Duplication in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Verified — provenance only; does not change the score.
Detailed fixes: d4_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether a class's methods are focused on a single responsibility.
Method: LCOM4 cohesion per production class with at least two methods: connected components of methods sharing state or calls, computed syntactically. Deterministic, not a proxy.
Coverage: Exhaustive · type-level: LCOM4 cohesion computed over every production class — the population is all types, not a name convention.
D11 · Test Reliability10.0 / 10Exemplary✓ Tool-verified
What it measures: Whether the tests pass reliably, with no flakiness.
Method: Suite re-run N times within tiered wall-clock budgets (unit to e2e); tests failing non-deterministically across runs flagged; guarded tests retried when #if guards detected.
What it measures: Whether any secrets (keys, tokens, passwords) have leaked into the code.
Method: In-process native secret scanner (entropy plus signature patterns) across all tracked files; no external tool. A clean result is a measured 10, not no-data zero. Deterministic.
What it measures: Files that change often and are also complex — the riskiest hotspots.
Method: Per production file churn times cyclomatic complexity over a rolling window, computed from git and Roslyn/JS/Razor analysis. Exhaustive, deterministic per commit date.
Resolve the 1 Hotspot finding(s) in Churn × Complexity Hotspots — start with typechecker.erl. — One of this dimension's main actionable groups (1 warning-level).
Detailed fixes: d15_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
D16 · Bus Factor10.0 / 10Exemplary✓ Tool-verified
What it measures: Whether knowledge is concentrated in too few people (the "bus factor").
Method: Living knowledge per author via time-decayed commit attribution (6-month half-life, focus weighting) across largest source files. Deterministic, avoids blame's mechanical-refactor false positives.
No source file's living knowledge is concentrated in a single author. Counted over 16 of the 32 production source files in this repository: the rest are under the ~2,400-byte size floor this dimension measures over.
✓ On the Gold path — maintain.
Detailed fixes: d16_recommendation.md.
Do you agree with this assessment?
D17 · Explicit Debt8.5 / 10Strong✓ Tool-verified
What it measures: Acknowledged debt left in the code — TODOs, dead code, suppressed warnings.
Method: Roslyn syntactic debt markers (suppressions/TODO/FIXME/HACK/empty-catch/commented-code/Obsolete) plus SymbolFinder dead-code analysis; weighted-debt-per-KLoC density deducted 2.0x per unit. Deterministic, exhaustive.
91 deducted task-comment markers across 10246 LoC (0.7/KLoC) → score 8.5. Task comments only: this repository's language is read without a compiler, so D17's suppression, dead-code and commented-out-code arms did not run and this score counts fewer marker kinds than a .NET repository's would.
TodoComment · ×89src/user_default.erl:12
XxxCommentsrc/gradualizer_type.erl:451
FixmeCommentsrc/gradualizer_bin.erl:47
What to do
Resolve the 89 TodoComment finding(s) in Explicit Debt — start with typechecker.erl (68), gradualizer_prop.erl (4), gradualizer_gen.erl (3). — One of this dimension's main actionable groups (89 warning-level).
Resolve the 1 XxxComment finding(s) in Explicit Debt — start with gradualizer_type.erl. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 FixmeComment finding(s) in Explicit Debt — start with gradualizer_bin.erl. — One of this dimension's main actionable groups (1 warning-level).
Enforce Explicit Debt in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d17_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether the project's documentation is clear, complete, and useful.
Method: Judged by language model at low temperature (0.0-0.1) on a deterministic doc sample (READMEs plus first 25 architecture docs), with two-pass stability filtering. Advisory, sampled.
The repository's root README is clear and well-structured (overview + a bulleted list of features), while the examples/rebar3/README.md and the doc/examples.md files are focused on their own directories and document only what they contain rather than the repository as a whole. The architecture/design docs are also present but not shown in this summary, so any missing-architecture-docs defect would be flagged against an unshown section.
Documentation: no installation or build instructions · ×2README.md
What to do
Resolve the 2 Documentation finding(s) in Documentation Quality — start with README.md (2). — One of this dimension's main actionable groups (2 recommendation-level).
Detailed fixes: d19_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether names — types, methods, variables — are clear and consistent.
Method: Judged by language model at low temperature (0.0-0.1) on a deterministic random symbol sample (fixed size, not exhaustive), with disclosed confidence band. Advisory, sampled.
What it measures: How far you must trace to follow a call — low indirection and co-located slices read easier.
Method: Call indirection (interface hops, cross-namespace calls, slice-locality scaled) over a sampled set of method invocations, size-aware baseline. Sampled; confidence discounted by symbol-resolution gaps. C# also names each pass-through layer (a class whose every public method only forwards its own parameters to one collaborator) as a located finding; the score is not affected.
Coverage: Slice locality from the first namespace segments, SAMPLED (≤400 methods) — not exhaustive.
0 % of calls cross a namespace and 0 % go through an interface, but 100 % of collaborators are co-located — so a call's collaborators sit together and tracing stays easy. Baseline: small — navigation cost is tolerated.
What it measures: Whether any secrets were ever committed — scanned across the full git history, not just now.
Method: Secret scan via TWO gitleaks detect passes in an isolated checkout — the full git history, then a second --no-git pass over the working tree as it stands — merged and de-duplicated by (rule, file, line); each match flagged High. Both invocations are recorded in the audit trail. Exhaustive; when the tool is absent, or when its output cannot be parsed into the expected shape, the dimension is WITHHELD as an explicit measurement gap on our side — unscored and excluded from the lens, never a hedged middling score.
What it measures: Real static-analysis (SAST) findings — likely security bugs in the code, any language.
Method: Polyglot static analysis via semgrep across the repo using the pinned, image-baked p/security-audit + p/owasp-top-ten rulesets (no scan-time registry fetch); severity rules (ERROR/WARNING/INFO) map to a full-band severity-weighted score. Exhaustive, deterministic; degrades on parse failure.
Coverage: semgrep pattern rules over all files — exhaustive for the rule set, blind to classes of bug without a rule (clean = no rule matched).
6 finding(s): 0 critical, 6 high, 0 medium, 0 low. 6 unpinned-GitHub-Actions row(s) are reported here but scored by D36 (supply-chain provenance), which measures that posture as `pinned_actions` — one pinning decision is charged once, not once per lens.
REDACTED
What to do
No action in Static Analysis (SAST) — all 6 REDACTED finding(s) are reported here at file:line but scored by D36 (supply-chain provenance), so none is charged to this dimension. — One of this dimension's main actionable groups (6 issue-level, 0 of them charged here).
Detailed fixes: d29_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether anyone still has living knowledge of each file, or it has been orphaned — last understood long ago by someone now gone quiet. The sibling of the bus factor: D16 asks who owns it, D34 asks whether anyone still knows it.
Method: File orphaning as total living-knowledge decay below one focused-commit's worth within a year, computed per-file from the D16 decay model. Exhaustive, deterministic over fixed history.
16 of 16 significant source file(s) are orphaned — their living knowledge has decayed to nothing, so no one currently understands them. The largest is src/typechecker.erl. Counted over 16 of the 32 production source files in this repository: the rest are under the ~2,400-byte size floor this dimension measures over.
Orphaned knowledge · ×3src/typechecker.erl:1
Orphaned file · ×13src/gradualizer_type.erl:1
Further orphaned files (smaller)
What to do
Resolve the 13 Orphaned file finding(s) in Knowledge Freshness — start with gradualizer_type.erl, gradualizer.erl, typelib.erl. — One of this dimension's main actionable groups (13 recommendation-level).
Resolve the 3 Orphaned knowledge finding(s) in Knowledge Freshness — start with typechecker.erl, gradualizer_db.erl, gradualizer_fmt.erl. — One of this dimension's main actionable groups (3 issue-level).
Resolve the 1 Further orphaned files (smaller) finding(s) in Knowledge Freshness. — One of this dimension's main actionable groups (1 recommendation-level).
Detailed fixes: d34_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether files that change together actually belong together — pairs that repeatedly co-change in git history despite having no explicit code dependency, surfacing the hidden/logical coupling (and boundaries in the wrong place) a static scan can't see.
Method: Pairwise co-occurrence over the per-commit file sets in git history (production source only — tests and generated dropped): Degree-of-Coupling = shared ÷ min individual revisions, reported above noise floors (each file ≥10 revisions, ≥5 shared commits, ≥50% strength); sweeping commits excluded. Deterministic over fixed history.
Coverage: Population: PRODUCTION source files only — test and generated files are dropped before pairing, so a class co-changing with its own test (trivially ~100%) can't drown the real production↔production coupling. Pairs ranked by Degree-of-Coupling. A non-source file is never a coupling PARTICIPANT either: documentation, schemas, config and data files are dropped with the rest, so a code↔docs pair — a command and the reference page that restates it — is not reported however strongly the two co-change; nor is coupling that runs THROUGH a build step or config file.
What it measures: Whether the build pipeline provides supply-chain integrity — generated provenance/attestation, signed artifacts (cosign/sigstore), an SBOM, and pinned build actions. Presence of the configuration, not a runtime guarantee.
Method: Supply-chain provenance/signing read deterministically from CI/build config (.github/workflows, .gitlab-ci.yml, azure-pipelines, Jenkinsfile, .circleci) + the release surface: four signals — generated provenance/attestation (SLSA/in-toto/actions-attest), artifact signing (cosign/sigstore/gitsign), an SBOM (syft/sbom-action/*.spdx.json/*.cdx.json), and SHA-pinned build actions — scored 10·present/denom. NotApplicable without a build pipeline. Detects configuration presence, not runtime enforcement.
Resolve the 3 REDACTED finding(s) in Supply-chain Provenance & Signing — start with REDACTED, REDACTED, REDACTED. — One of this dimension's main actionable groups (3 warning-level).
Resolve the 1 REDACTED finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 REDACTED finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 recommendation-level).
Detailed fixes: d36_recommendation.md · top locations in Appendix A, every location in findings.md.
Other · Architecture — How the codebase splits by code ROLE — domain, application, infrastructure, test, generated. The significance map behind the knowledge/coupling weighting, and a DDD signal in its own right: a thin domain core under fat infrastructure is the anemic-domain smell, quantified. How each file's role is decided, because the split is only as good as that: a generated name or a build-output tree makes it Generated, a test project makes it Test, and otherwise the file's NAMESPACE and PATH words are matched against fixed vocabularies in a fixed ORDER — domain, then infrastructure, then application — so a file whose words hit two layers is counted under the earlier one. A production file matching none of them counts as application, so that share reads 'application or unclassified' rather than a measured application layer. Roles come from naming convention, never from what the code does. On this repository the split was taken from the source tree on disk rather than from a loaded .NET workspace, so a file's role is decided by its PATH segments alone — no declared namespace was available to add to the evidence — and generated output is excluded from the census entirely rather than counted as a generated share.
Method: Roslyn line-count by code ROLE: every source file classified Domain/Application/Infrastructure/Test/Generated by namespace + path convention (the shared CodeRoleClassifier), then significant lines summed per role. Deterministic; the advisory score is the business-logic (domain+application) share of production code.
Coverage: Population: ALL source files, each bucketed into ONE of five roles (Domain/Application/Infrastructure/Test/Generated) by namespace + path convention — a file whose layer isn't named in the convention falls to Application (the neutral default), and the split is line-count, not semantic depth or business value.
What to do
The domain core is a small share of production code, but most of the rest matched no layer vocabulary at all — so this is not yet an anemic-domain finding. The namespace/path convention could not place that code, which makes the composition above a statement about the naming, not about the design. Name the layers (or check that the repository's conventions differ from the ones this check knows) before reading a thin domain into it.
Other · Architecture — Whether the project-reference graph is acyclic (cycles block independent build/deploy and signal eroding boundaries).
Method: Project reference cycles via elementary-DFS over real .csproj references, using the engine shared with D5/D7; cyclic versus acyclic. Exhaustive, deterministic.
Other · Architecture — Whether dependencies point inward (Domain ← Application ← Infrastructure/Web) — the clean-architecture dependency rule, checked across the project graph.
Method: Layer violations by name-segment inference (Domain/Core to Application to Infrastructure/Web) over the project-reference graph. Exhaustive over all projects, deterministic.
Other · Architecture — Whether read (query) handlers stay side-effect-free — a query that writes persistent state or raises events breaks CQS and makes reads unsafe to retry, cache, or route to a read replica.
Method: Roslyn scan: CQRS handlers classified query-vs-command by interface (IQueryHandler/ICommandHandler/IRequestHandler<TQuery,TResult>) and name convention (*Query/Get*/Find* vs *Command); each query handler's body checked for persistent-state writes (SaveChanges/repository Add-Update) or event publishes by resolved invocation. Deterministic, type-level, exhaustive over the detected handlers.
Coverage: Population: CQRS handlers identified by IQueryHandler/ICommandHandler/IRequestHandler interface + *Query/Get*/Find*/*Command NAME convention; query purity then checked exhaustively within that set — a query handler using neither convention is invisible, and mutation is a resolved persistence/publish CALL, not full dataflow.
Other · Event Sourcing — Whether the event-sourcing replay fold reconstructs state purely from the event (no wall clock, UUID or randomness) so replay is reproducible.
Method: Roslyn syntax scan (event-sourcing gated): Apply/When folds checked for forbidden tokens (DateTime.Now, Guid.NewGuid, Random, IO), stripped of comments/strings. Deterministic, hard fact per fold.
Other · Event Sourcing — Whether persisted events stay immutable (never rewritten in place).
Method: Roslyn scan (event-sourcing gated): persisted events checked for public setters; immutability verified per property/field. Deterministic, hard fact.
Maturity · Maturity — Whether the repo and its projects have a README, and whether it's substantive and current.
Method: Filesystem scan: README presence, word count, and headings for depth; git history for staleness. Exhaustive across root and project dirs, deterministic.
What to do
Explain in the README how to run the tests. Add a section called Testing to the README in the repository's top folder, saying how to run the test suite.
Add an 'Architecture' / 'How it works' section to the root README — the high-level shape.
Maturity · Maturity — Whether key decisions (ADRs) and the high-level shape (C4/diagrams) are written down.
Method: Filesystem scan: ADR folder/naming conventions or content, plus Mermaid/PlantUML/C4/architecture.md discovery. Exhaustive, deterministic.
No Architecture Decision Records found — no conventional ADR directory, no numbered `NNNN-title` documents in any markup this check reads, and nothing ADR-shaped by content. Design rationale recorded elsewhere (a design-notes tree, a mailing list, pull-request discussion) is not visible to this check and is not re-findable per decision, so a future maintainer cannot ask why one choice was made and get an answer.
No C4/Structurizr/PlantUML/Mermaid/Graphviz/D2 diagram, no drawn diagram named for the architecture, no file named `architecture` or `design` in any markup this check reads, and nothing in the README, docs or contributor guides that announces the shape — no `## Architecture` heading, no "architecture overview"/"high-level design" phrasing, no "the architecture is …" introduction, no guided code tour. A shape laid out in prose that never names itself as the architecture is not visible to this check, and neither is one kept outside the repository, so this row reports the absence of a re-findable shape document — not evidence that nobody wrote the shape down.
What to do
Record your significant design decisions. Write one short document per decision, giving its date, the situation, the decision and its consequences, and keep them together with your other design documents. A docs/adr folder with each file named by number and title is the easiest place to find them.
Add a C4 context/container diagram (Structurizr, PlantUML or Mermaid) or an architecture.md overview.
Maturity · Maturity — Whether the README actually describes the code that exists (LLM-judged, advisory).
Method: Judged by language model at low temperature: README accuracy versus actual projects, within a disclosed tolerance. Advisory, not a measured number.
_build/test/lib/proper/README.md documents the environment variable `ERL_LIBS`, but no code, script or configuration file names it. Checked without a model against the repository: its files and folders, the scripts and dependencies of every package.json, the projects, namespaces, package references and target frameworks of the .NET build, the SDK and Node pins, and the identifiers of every file that is not a document; the documents' own text never counts. A footprint generated at build time, read only by a platform, or living outside this repository is not seen, and this row is then wrong. — _build/test/lib/proper/README.md:109
What to do
Reconcile the README with reality: _build/test/lib/proper/README.md documents the environment variable `ERL_LIBS`, but no code, script or configuration file names it.
Readiness · Readiness — Whether an automated pipeline builds and tests every change.
Method: Filesystem scan: CI workflow files (.github/workflows, .gitlab-ci.yml, etc.) for build and test stages. Exhaustive, deterministic.
Do you agree with this assessment?
P10 · Library API & versioning10.0 / 10Exemplary○ Nothing flagged
Readiness · Readiness — For a library: a deliberate (small) public API surface and explicit semantic versioning so consumers can depend on it safely.
Method: Roslyn scan: public API surface area and semantic-versioning markers (SemVer attributes, changelog entries) for libraries; off .NET, a library is the ecosystem's publication act (an npm package that is not private and names an entry point, a PyPI distribution with a build system, a Rust library crate, a Maven/Gradle module that publishes, a Go module with no package main, a gemspec, a Composer library, a SwiftPM library product, a pub.dev or Hex package), its surface is the share of types the language model records as public (Rust, Swift, Java, Kotlin, Go, Dart; not measured where the model records no type visibility or, as in TypeScript, only module-level export), and its version is read from the manifest, a semver CHANGELOG, release tooling or semver git tags. Exhaustive, deterministic.
Do you agree with this assessment?
P2 · Observability7.0 / 10Strong✓ Tool-verified
Readiness · Readiness — Whether the code is diagnosable in production — structured logging, tracing/metrics, health checks.
Readiness · Readiness — Whether SAST, secret/dependency scanning and performance benchmarking are wired in (presence, not runtime).
Method: Filesystem scan: SAST configuration, dependency-update automation, secret scanning, and a benchmark harness or benchmark step — in this repository's own ecosystem. Exhaustive, deterministic.
What to do
Enable Dependabot/Renovate or a dependency-review gate.
Add gitleaks/trufflehog in CI to block PRs that introduce committed secrets.
Other · Code Health — Whether a value the caller is invited to supply is the value the type actually uses — a constructor parameter stored in a private field that nothing ever reads while the default it was given is spelled out a second time at the site that should have read it, a keyed lookup that falls back to a different setting than the one its key names while the same type falls back to the matching one for that same key, or a culture-sensitive parse given no format provider by a type that feeds its own settable culture to the same kind of parse elsewhere, or a number an entry point writes to standard output under the host's culture while the same entry point formats with the invariant culture elsewhere. Either way, every caller who supplies a value silently gets something else.
Method: Roslyn syntax: private instance fields of a non-partial type assigned in a constructor from one of its own parameters with a `??` fallback, checked for whether anything in the type body reads the field and whether that same fallback expression is spelled out again outside the constructor; and `??` fallbacks onto a member access from a lookup call carrying exactly one string literal, grouped by that key across the type and checked for a fallback member whose folded name disagrees with the key while a sibling site for the same key agrees with it. On a repository with no .NET source the first two arms read JavaScript/TypeScript off the engine’s own token stream (tests included, bundles and vendored paths not): a `#x`, `private` or `private` parameter-property instance field filled in the constructor from a parameter (or one member of one) through `??`/`||` or a parameter default, never read anywhere in the file by name, whose constructed default is spelled again in the class body; and `lookup("key") ?? s.member` grouped by key per class, or per module outside every class. The culture arm has no JavaScript counterpart: its parses take no locale. Deterministic, provable per finding. Advisory.
Do you agree with this assessment?
X27 · Collection changed while being enumerated10.0 / 10Exemplary○ Nothing flagged
Other · Code Health — Whether a walk over an ETS table leaves the key it stands on alone — Erlang's own lists and maps are values no body can change, but an ETS key traversal asks the table for the key after the current one, so on a `set`, `bag` or `duplicate_bag` that is not fixed with `ets:safe_fixtable/2`, deleting the current key and then calling `ets:next/2` (or `ets:prev/2`) from it raises `badarg` and the rest of the table is never visited.
Method: Roslyn syntax + semantics: `foreach` statements whose body calls a structural mutator (`Add`/`Remove`/`Clear`/`Insert`/…) on the very expression the loop is enumerating. Two arms. ARM A — the source is a concrete fragile BCL collection, or a live `Keys`/`Values` view over one, and the mutator resolves to that same collection's own member; concurrent and immutable collections and arrays are outside the population by construction, since their enumerators survive a structural change. ARM B — the source is an argument-less accessor CALL on a receiver whose body is in source: the accessor must return a stored field VERBATIM and a sibling member must structurally change that same field, both read off the implementations rather than from the members' names. A mutation the loop provably exits immediately after (`break`/`return`/`throw`/`goto`), or one written inside a nested loop or a lambda, is counted and never reported. Deterministic, provable per finding. Advisory.
Do you agree with this assessment?
X28 · Index access outside its own emptiness guard10.0 / 10Exemplary○ Nothing flagged
Other · Code Health — Whether a condition that tests a value for emptiness indexes that same value only where the test holds — an `||` written one parenthesis too far to the left leaves an index access outside the guard beside it, so the empty case the guard exists to anticipate reaches the index and throws.
Method: Roslyn syntax only, no semantic model: the OUTERMOST `&&`/`||` of every boolean condition, read for a symbol the condition tests for emptiness (`string.IsNullOrEmpty`/`IsNullOrWhiteSpace`, a `Length`/`Count` comparison against a literal, `Any()`, a `Length`/`Count` pattern, or a comparison against `""`) and ALSO indexes. Each `symbol[...]` access is placed by a boolean-reachability walk from the access up to the outermost connective: an access is COVERED when some enclosing step has it in the right operand and the left operand, under the truth value that step forces, proves the symbol non-empty — a recursion over `&&`/`||` whose true- and false-directions are asymmetric. A finding needs BOTH an uncovered access and a covered one on the same symbol in the same condition, which is the agreeing twin that separates a misplaced parenthesis from an unrelated length test. Bare index accesses with no emptiness test in the condition are neither counted nor reported; a non-identifier receiver and a lambda nested inside the condition are outside the population. Deterministic, provable per finding. Advisory.
Other · Code Health — Whether exceptions are handled rather than silently swallowed or rethrown with lost stack traces.
Method: Roslyn syntax scan: every catch clause counted; empty catches and bare rethrows flagged. Population is all catch clauses, not estimated. Deterministic, hard fact.
`catch _:_` takes every exception and records none of it — the body neither logs it, rethrows it, nor even names it, so the failure is discarded as completely as by an empty catch and only the substituted value survives. Log it through whatever this codebase already uses to report problems, narrow the catch to the exception this call can actually raise, or say in a comment on the catch why the failure genuinely cannot matter. — src/typechecker.erl:3467
What to do
Swallowed exception (caught, then discarded)
Do you agree with this assessment?
Reference — by lens
The score is the rank-weighted fold of these lenses (worst-heaviest), each including its meta-dimensions; a lens with a Critical contributor is capped at Fair (its band reads "gated by …") and is never the strongest area however high its average.
Unscored — 2 check(s) recorded observations but carry no score
These checks ran and found something, but they do not carry a score — either by design (an advisory check reports evidence rather than grading it) or because they could not be scored here. They are excluded from the score for that reason, not because there was nothing to see.
P12 CI test-gate honesty — 1 observation(s) recorded · Reported, not scored — this card publishes what the CI gate does with the test inventory rather than grading it. The findings above are its output.
X31 Test-only surface in a production module — 19 observation(s) recorded · Advisory — this card reports evidence and never carries a score.
Not evidenced — 5 control(s) we could not find positive evidence for
These checks grade a working control, and the repository shows no evidence of one. That is deliberately not scored as a zero: a repository cannot show an ops runbook, a database TTL or an infrastructure-side audit log, so absence of evidence here is not evidence the control is missing. It is also not a statement that the check is irrelevant to this codebase — the thing it grades applies; we just could not see it. Excluded from the score either way.
C3 Audit Trail — Not assessed: these audit controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks audit controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C4 Data Retention — Not assessed: these retention controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks retention controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C5 Data-Subject Rights — Not assessed: these data-subject rights controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks data-subject rights controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
P4 Deployment & Rollback — not evidenced — no deploy/rollback/approval signal in the repo; absence of evidence is not evidence of a manual release
P5 DR & Backup — not evidenced — repo shows no backup/RTO/RPO controls; absence of evidence is not evidence of a working control
Not included — 76 check(s) not relevant to this codebase
These checks had nothing to measure here (no tests, no git history, the codebase is small, or the architecture style doesn't apply), so they're omitted above rather than scored low.
AC1 Text alternatives — No web markup found — accessibility is not applicable to this repository.
AC2 Forms & labels — No web markup found — accessibility is not applicable to this repository.
AC3 Page structure — No web markup found — accessibility is not applicable to this repository.
AC4 Keyboard semantics — No web markup found — accessibility is not applicable to this repository.
AC5 ARIA correctness — No web markup found — accessibility is not applicable to this repository.
AC6 Visual & motion safety — No web markup found — accessibility is not applicable to this repository.
AC7 A11y enforcement — No web markup found — accessibility is not applicable to this repository.
AX1 Captive dependencies — Not applicable: the BEAM has no dependency-injection container — state lives in processes, and no process is handed an instance whose lifetime another one scopes.
AX2 Stateful singletons — Not applicable: Erlang processes share no mutable memory — state lives in a process's own mailbox — so there is no shared object to race on.
AX5 Architecture & structure — not assessed — architecture style/structure is computed from a project graph (projects, types, module namespaces) that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX6 Interface segregation — not assessed — interface segregation is computed over a type surface that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX7 Slice cohesion — not applicable — not a vertical-slice architecture
AX8 Test isolation — no test/production split to check
AXB1 Runtime evidence locked — no reproducible boot — This repository has nothing the runtime tiers could boot or serve — no markup, no UI framework or web-server dependency, no UI component source, no native UI project and no API definition — nothing here is a surface to boot — so runtime a11y/egress/header evidence has no subject here. Not applicable: this is neither a gap in the scan nor a finding about your code.
C1 Data Protection — Not assessed: these personal data controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks personal data controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C2 Access Controls — Not assessed: these authorization controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks authorization controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
D10 Test Quality — ~10347 lines of test source are present (.erl) but no test cases reached the test census for this repository — no test root we could resolve declared them, or the files we read declare no cases in a test framework we recognise — so skipped/assertion-free tests couldn't be counted. Not scored — this is a gap in the analyzer, not a finding about this repository.
D12 Dependency Hygiene — Not scored — 1 rebar3 declaration(s) across 1 `rebar.config` and 0 package(s) pinned by a committed `rebar.lock` were read for PINNING discipline (0 defect(s) reported), but the outdated/retired signal needs hex.pm, which publishes none of these packages, so this dimension's own question is only partly answered. NOT a finding that these dependencies are current or healthy.
D14 License Compliance — Package manifest not parsed for licence data — analyzer language-coverage gap
D18 Solution Shape — D18 scores the shape of a .NET solution; this repository has no .NET solution or project files, so the dimension does not apply.
D20 ADR Quality — N/A — ADRs are expected on deployable products with a user-facing host, not consumed libraries; no ADR log is required here.
D22 Internal API Consistency — The exposed public-API surface could not be collected — no C#/VB projects loaded.
D23 Boundary Type-Coupling — No bounded-context organisation was detected either — neither a context-shaped layout, nor 2+ sibling source directories each declaring an aggregate root, nor 2+ projects each declaring an entity of their own. Declaring this codebase's bounded contexts (≥2) would let cross-boundary type coupling be assessed. Declare them in `.codehealth/config.yaml` at the repository root (create it if absent), mapping each context name to the module-path or namespace prefixes that belong to it — e.g. `architecture:` → `contexts:` → `Billing: ["src/billing", "Acme.Billing"]`, `Catalog: ["src/catalog", "Acme.Catalog"]`.
D24 Comment Value — No inline comments to assess — comment value is not applicable here.
D25 ADR Conformance — no ADRs to check
D30 Dependency Vulnerabilities — Not scored — no dependency manifest in a supported ecosystem was read for this repository. A gap in the analyzer's language coverage, NOT a finding that the repository is free of vulnerable dependencies (a rebar.config / erlang.mk DEPS (Hex) — not scanned yet).
D31 IaC & Container Security — No Infrastructure-as-Code or container manifests found (Dockerfile, Docker Compose, Terraform, Kubernetes/Helm, CloudFormation, ARM, Bicep, Ansible); nothing to scan.
D32 Data Compliance (PII/GDPR) — No personal data was found crossing a boundary the PII/GDPR ruleset checks — nothing written to a log or console sink, placed in a URL or query string, or persisted to browser storage. That is a clean result for the LEAK surface only: this ruleset detects personal data escaping, it does not inventory the personal data a repository holds, so it is not evidence that this repository has no personal-data surface. The personal-data map (Appendix C) and the C1-C5 compliance cards are what speak to that.
D37 Vulnerability-disclosure Policy — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
D39 IL Efficiency — D39 measures the IL emitted by a .NET build; this repository has no .NET solution or project files, so the dimension does not apply.
D40 Network Egress Confinement — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.
D41 Kernel & Syscall Confinement — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.
D42 Runtime Threat Enforcement — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.
D43 Malicious Dependencies — Not scored — no dependency manifest in a supported ecosystem was read for this repository. A gap in the analyzer's language coverage, NOT a finding that the repository is free of vulnerable dependencies (a rebar.config / erlang.mk DEPS (Hex) — not scanned yet).
D44 Platform End-of-Life — Platform end-of-life not assessed — this repository declares no platform this pass reads
D5 Coupling — Not applicable — this OTP build ships 1 production module(s), so there is no coupling BETWEEN modules to measure. (Its test and non-production modules are not part of the shipped graph.)
D7 Architectural Integrity — no checkable ADRs, and no project-reference graph for the cycle pass to read — so this dimension makes no claim about dependency cycles in either direction (where this repository's language has an import-cycle lens, cycles are reported there). Architectural integrity not assessed
D8 Code Coverage — Coverage not included — suite not readable by the collector
D9 Test Distribution — Test source is present (.erl) but no test cases reached the test census for this repository — no test root we could resolve declared them, or the files we read declare no cases in a test framework we recognise — so its unit/integration/BDD/E2E split couldn't be counted. Not scored — this is a gap in the analyzer, not a finding about this repository.
DM1 Domain Modelling — not scored — this repository shows only 1 of the 3 signals this lens looks for (7 value object(s))
ED1 Event-Driven — not scored — this repository shows none of the 3 signals this lens looks for
ED5 Idempotency — no mutating command handlers or message consumers detected — idempotency check not applicable
GD1 Unfinished & placeholder code — no source files were read — this check reads C#, F#, JavaScript/TypeScript, Dart, Ruby and Scala, and none was read for this repository's product. That is a limit of the analyzer, not a finding about your code.
IC1 Incompleteness & stubs — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
P7 Outbound HTTP resilience — not applicable — no HTTP server, API framework or worker entry point was found in the Erlang source, so there is no service whose uptime a failing dependency could take down
P8 Schema migrations — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
P9 Domain vs controller coverage — no coverage report found on disk — produce a coverage report in a standard format (`rebar3 do eunit --cover, cover` (or covertool for Cobertura XML)) and commit it — a hosted scan measures a clone of the repository, so a report that exists only in a working tree, a CI runner's or your own, never reaches it; the artefact is commonly gitignored, so `git add -f` that one file (or un-ignore its path) and commit it alongside the code it measures, or wire coverage collection into CI, to enable this cross-layer check
PF1 Benchmark discipline — Not applicable: no benchmark suite was found. This check searched for `erlperf:run`/`compare`/`benchmark`/`time` calls, a common_test `benchmark_data` event, `bench_*` functions in a `bench_*.erl` module where rebar.config installs rebar3_bench, or erlperf or rebar3_bench in a rebar.config, and for a `*benchmark*` script that this repository's CI runs. Benchmarks are credited as a bonus, so their absence is neither scored nor deducted.
PF2 Allocation hygiene — Not applicable: Erlang runs on a garbage-collected runtime that gives a program no allocation-control idiom to choose on a hot path — no pools, stack allocation or value types — so allocation awareness is not something this code can be rated on.
PF3 Async & latency hygiene — Not applicable: Erlang has no async/await function colour, so there is no asynchronous code for a blocking call to stall.
S1 Web-Security Posture — Not assessed: these web-security controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks web-security controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
X1 Async correctness — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X10 Duplicated predicate — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
X12 Unreachable branch — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X13 Undrained process stream — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X14 Bypassable address classification — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X15 Unvalidated length from an untrusted reader — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X16 Unfloored truncation loop — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X17 Uncapped recursion over a caller-supplied document — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X18 Disposal-pattern correctness — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X19 Unrestored process-global state — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X2 Cancellation propagation — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X20 Mistyped argument guard — This check asks whether an argument guard reports an EMPTY value as a NULL one, which needs a language that throws a null-specific argument exception — .NET's ArgumentNullException, the JVM's NullPointerException, Dart's ArgumentError.notNull. This repository contains none of those languages: the ones it is written in have a single exception for a bad argument, so there is no pair of exceptions to confuse and nothing here for it to assess. Not a gap in the analyzer and not a finding about your code.
X21 Side-effecting pattern guard — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X22 Contradicted release guard — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X23 Unguarded diagnostic materialisation — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X24 Document value interpolated into markup unescaped — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X26 Unsynchronised callback handoff — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X29 Per-element action decided by a fixed element — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X30 Support guard that admits what it rejects — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X32 Type resolved by simple name across every loaded assembly — This check is about how a .NET program searches the assemblies loaded into its process for a type, and this repository contains no .NET source, so there is nothing here for it to assess. Not a gap in the analyzer and not a finding about your code.
X4 Structured logging — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X5 Nullable reference types — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X6 Hand-rolled structured-format parsing — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
X7 Silent fallback defaults — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X9 Subsumed condition operand — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
Appendix A — Findings (grouped)
The findings behind the scores, grouped by severity, then by dimension and kind. The high-severity issues are enumerated in full below; items per group are capped at 25 with any overflow stated explicitly per group, never silently truncated. The complete machine-readable list of every finding (all severities) is the companion findings.md in this report's bundle.
Orphaned knowledge src/typechecker.erl:1— No living knowledge remains for this large file — its last meaningful change has decayed away; if it breaks, no one currently understands it. Schedule a read-through / add characterisation tests before it bites.
Orphaned knowledge src/gradualizer_db.erl:1— No living knowledge remains for this large file — its last meaningful change has decayed away; if it breaks, no one currently understands it. Schedule a read-through / add characterisation tests before it bites.
Orphaned knowledge src/gradualizer_fmt.erl:1— No living knowledge remains for this large file — its last meaningful change has decayed away; if it breaks, no one currently understands it. Schedule a read-through / add characterisation tests before it bites.
TodoComment src/user_default.erl:12— % TODO: we can be a lot more clever about recognizing — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typelib.erl:43— %% TODO: This is a workaround for the fact that a list is sometimes used in — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typelib.erl:328— %% TODO: this is mostly redundant with `gradualizer_lib:fold_ast' — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:119— %% TODO: See https://github.com/josefs/Gradualizer/issues/364 for details.
TodoComment src/typechecker.erl:135— %% TODO: Some of these don't seem to be thrown at all, e.g. expected_fun_type — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:319— % TODO: There are several kinds of fun types. — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:406— %% TODO: Record equivallend on tuple form — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:578— %% TODO: Don't drop the constraint here. — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:838— %% TODO: add a test case — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:842— %% TODO: Too simplistic! — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1134— %% TODO: This is a kludge by which lists of types slip through calls to normalize(). — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1144— %% * TODO: Detect user-defined and remote types expanding to themselves — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1171— %% (TODO) Removes all types that are subtypes of other types in the same union. — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1202— % TODO: add more cases — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1514— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1528— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1717— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1749— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1757— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1764— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1774— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1795— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:1955— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:2412— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/typechecker.erl:2417— %% TODO: move tenv to back — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
Duplicated block (5 lines × 2) src/typechecker.erl:293— src/typechecker.erl:293-297 | src/typechecker.erl:305-309 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (5 lines × 2) src/typechecker.erl:875— src/typechecker.erl:875-879 | src/typechecker.erl:883-887 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (5 lines × 2) src/typechecker.erl:2822— src/typechecker.erl:2822-2826 | src/typechecker.erl:3848-3853 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (5 lines × 2) src/typechecker.erl:5870— src/typechecker.erl:5870-5874 | src/typechecker.erl:5877-5881 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
FileTooLong: src/typechecker.erl src/typechecker.erl— FileTooLong — 5028 significant lines (blank, comment-only and punctuation-only lines excluded), declaring 267 functions. The bar is 500 significant lines; this is 4528 over it, 10.06× the bar. In this language a module is exactly one source file, so its length cannot be moved into sibling files of the same module. To reduce it, extract each cohesive family of functions into a new module of its own and have this one delegate to it, so no one module has to be read whole to change one of them.
FileTooLong: src/gradualizer_fmt.erl src/gradualizer_fmt.erl— FileTooLong — 506 significant lines (blank, comment-only and punctuation-only lines excluded). The bar is 500 significant lines; this is 6 over it, 1.01× the bar. In this language a module is exactly one source file, so its length cannot be moved into sibling files of the same module. To reduce it, extract each cohesive family of functions into a new module of its own and have this one delegate to it, so no one module has to be read whole to change one of them.
Duplicated block (6 lines × 2) src/typechecker.erl:2636— src/typechecker.erl:2636-2641 | src/typechecker.erl:2663-2668 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (6 lines × 2) src/typechecker.erl:2645— src/typechecker.erl:2645-2650 | src/typechecker.erl:2676-2681 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
typechecker.do_type_check_expr_in (cyclomatic 124) src/typechecker.erl:2983— typechecker.do_type_check_expr_in has cyclomatic complexity 124 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.glb_ty (cyclomatic 94) src/typechecker.erl:752— typechecker.glb_ty has cyclomatic complexity 94 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.do_type_check_expr (cyclomatic 82) src/typechecker.erl:1957— typechecker.do_type_check_expr has cyclomatic complexity 82 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.compat_ty (cyclomatic 72) src/typechecker.erl:274— typechecker.compat_ty has cyclomatic complexity 72 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.refine_ty (cyclomatic 63) src/typechecker.erl:4599— typechecker.refine_ty has cyclomatic complexity 63 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.add_type_pat (cyclomatic 62) src/typechecker.erl:5280— typechecker.add_type_pat has cyclomatic complexity 62 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
gradualizer_fmt.format_type_error (cyclomatic 60) src/gradualizer_fmt.erl:50— gradualizer_fmt.format_type_error has cyclomatic complexity 60 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing.
typechecker.arith_op_arg_types (cyclomatic 40) src/typechecker.erl:3486— typechecker.arith_op_arg_types has cyclomatic complexity 40 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.refinable (cyclomatic 39) src/typechecker.erl:4884— typechecker.refinable has cyclomatic complexity 39 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.type_check_comprehension_in (cyclomatic 31) src/typechecker.erl:3748— typechecker.type_check_comprehension_in has cyclomatic complexity 31 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
gradualizer_db.handle_call (cyclomatic 30) src/gradualizer_db.erl:179— gradualizer_db.handle_call has cyclomatic complexity 30 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing.
typechecker.expect_fun_type1 (cyclomatic 21) src/typechecker.erl:1530— typechecker.expect_fun_type1 has cyclomatic complexity 21 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This is NOT this file's highest cyclomatic complexity: typechecker.expand_builtin_aliases (cyclomatic 29) is higher and carries no row of its own — it was excluded as a flat dispatcher (a long switch/match over independent cases: many branches, almost no nesting), which this dimension does not treat as a refactor obligation. It is named here so the ranking you see in this file is not mistaken for the whole of it; the excluded function is counted neither in this dimension's figures nor in its score. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
gradualizer_bin.bin_element_view (cyclomatic 19) src/gradualizer_bin.erl:38— gradualizer_bin.bin_element_view has cyclomatic complexity 19 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing.
typechecker.type_of_bin_element (cyclomatic 19) src/typechecker.erl:5834— typechecker.type_of_bin_element has cyclomatic complexity 19 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing. This is NOT this file's highest cyclomatic complexity: typechecker.expand_builtin_aliases (cyclomatic 29) is higher and carries no row of its own — it was excluded as a flat dispatcher (a long switch/match over independent cases: many branches, almost no nesting), which this dimension does not treat as a refactor obligation. It is named here so the ranking you see in this file is not mistaken for the whole of it; the excluded function is counted neither in this dimension's figures nor in its score. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typelib.substitute_type_vars (cyclomatic 18) src/typelib.erl:248— typelib.substitute_type_vars has cyclomatic complexity 18 (threshold 15). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Where every arm is uniform — the same kind of value, with no behaviour of its own — a table keyed by the case is the shorter form; wherever the arms carry different data or different behaviour, keep them as cases, because collapsing those trades an explicit, reviewable set of cases for nothing.
typechecker.unary_op_arg_type (cyclomatic 17) src/typechecker.erl:3713— typechecker.unary_op_arg_type has cyclomatic complexity 17 (threshold 15). To reduce it, name the conditions — but note WHERE they are: these tests sit in guard sequences, and a guard is a restricted expression sublanguage that allows neither binding a local nor calling a function you wrote, so neither of those moves is available in place. Move the decision out of the guard instead: keep one clause with a permissive guard, compute the compound test in the body through named predicate functions, and dispatch on their result. Where the clauses genuinely differ by pattern rather than by test, keep the patterns and lift only the comma-conjunctions. This is NOT this file's highest cyclomatic complexity: typechecker.expand_builtin_aliases (cyclomatic 29) is higher and carries no row of its own — it was excluded as a flat dispatcher (a long switch/match over independent cases: many branches, almost no nesting), which this dimension does not treat as a refactor obligation. It is named here so the ranking you see in this file is not mistaken for the whole of it; the excluded function is counted neither in this dimension's figures nor in its score. This file is where this pass's cyclomatic complexity CONCENTRATES: src/typechecker.erl holds 12 of the 16 functions over the threshold — including the worst — and 484 of the 551 points over it (88%), 10.8× the next-largest file (src/gradualizer_fmt.erl at 45). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
Hotspot: src/typechecker.erl src/typechecker.erl:2983— src/typechecker.erl changed 13 times in last 90 days, and the most complex body those changes touched has cyclomatic complexity 124 in typechecker.do_type_check_expr_in at line 2983. 2 of those changes were fix/bug commits, and the other 11 changed it for other reasons — this file is under both repair and feature pressure. Before the next change lands here, make sure the area it touches is under test, then split that area out of the file so the following change is smaller than this one — a file this often edited pays the complexity back every time. Counted over 2025-12-24..2026-03-24, the 90 days ending at the analysed commit. Reproduce with `git log --since='2025-12-24 16:43:25 +00:00' --until='2026-03-24 16:43:25 +00:00' --full-history --no-merges -- src/typechecker.erl`: merges are excluded because a merge re-states changes already counted at their own commits, and history is NOT path-simplified because a change that reached the file through a merged branch is still a change to it. That command counts raw commits and can read HIGHER than this row, which counts a cherry-picked re-land, and a revert together with the commit it undoes, once each — a difference of several commits on a file whose history was re-landed or reverted inside the window.
XxxComment src/gradualizer_type.erl:451— %% XXX. To be refined. — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
FixmeComment src/gradualizer_bin.erl:47— %% FIXME: Not true for float, integer — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `% REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
typechecker.do_type_check_expr_in (cognitive 64) src/typechecker.erl:2983— typechecker.do_type_check_expr_in has cognitive complexity 64 (threshold 15). Drivers by points: match/switch 37 (48 pts), boolean chains 9, loops 3 (6 pts), error handling 1 (nesting depth added 14). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.glb_ty (cognitive 59) src/typechecker.erl:752— typechecker.glb_ty has cognitive complexity 59 (threshold 15). Drivers by points: match/switch 20 (26 pts), boolean chains 21, loops 5 (11 pts), error handling 1 (nesting depth added 12). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.refine_ty (cognitive 37) src/typechecker.erl:4599— typechecker.refine_ty has cognitive complexity 37 (threshold 15). Drivers by points: match/switch 14 (16 pts), boolean chains 10, loops 7 (9 pts), error handling 2 (nesting depth added 4). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.add_type_pat (cognitive 35) src/typechecker.erl:5280— typechecker.add_type_pat has cognitive complexity 35 (threshold 15). Drivers by points: match/switch 21 (29 pts), loops 2 (4 pts), boolean chains 2 (nesting depth added 10). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.compat_ty (cognitive 35) src/typechecker.erl:274— typechecker.compat_ty has cognitive complexity 35 (threshold 15). Drivers by points: boolean chains 22, match/switch 9 (10 pts), error handling 3 (nesting depth added 1). To reduce it, name the conditions — but note WHERE they are: these tests sit in guard sequences, and a guard is a restricted expression sublanguage that allows neither binding a local nor calling a function you wrote, so neither of those moves is available in place. Move the decision out of the guard instead: keep one clause with a permissive guard, compute the compound test in the body through named predicate functions, and dispatch on their result. Where the clauses genuinely differ by pattern rather than by test, keep the patterns and lift only the comma-conjunctions. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.do_type_check_expr (cognitive 34) src/typechecker.erl:1957— typechecker.do_type_check_expr has cognitive complexity 34 (threshold 15). Drivers by points: match/switch 23 (26 pts), boolean chains 6, error handling 1, loops 1 (nesting depth added 3). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.arith_op_arg_types (cognitive 23) src/typechecker.erl:3486— typechecker.arith_op_arg_types has cognitive complexity 23 (threshold 15). Drivers by points: match/switch 10 (11 pts), boolean chains 10, loops 2 (nesting depth added 1). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
gradualizer_db.handle_call (cognitive 18) src/gradualizer_db.erl:179— gradualizer_db.handle_call has cognitive complexity 18 (threshold 15). Drivers by points: match/switch 9, loops 3 (5 pts), error handling 1 (2 pts), if/else 1 (2 pts) (nesting depth added 4). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident.
typechecker.refinable (cognitive 17) src/typechecker.erl:4884— typechecker.refinable has cognitive complexity 17 (threshold 15). Drivers by points: match/switch 9 (12 pts), boolean chains 3, loops 1 (2 pts) (nesting depth added 4). To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
typechecker.type_check_arith_op_in (cognitive 17) src/typechecker.erl:3397— typechecker.type_check_arith_op_in has cognitive complexity 17 (threshold 15). Drivers by points: error handling 3 (10 pts), match/switch 4 (6 pts), if/else 1 (nesting depth added 9). The drivers above price the dispatch low by construction — a dispatch is charged once however many cases it lists, while each branch inside an arm is charged in full — so most of this count is what the case bodies hold, and the arms are where it can be reduced. To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident. This file is where this pass's cognitive complexity CONCENTRATES: src/typechecker.erl holds 9 of the 11 functions over the threshold — including the worst — and 186 of the 190 points over it (98%), 62× the next-largest file (src/gradualizer_db.erl at 3). No single row can show this, because each is measured only against the threshold: reducing this one file moves this dimension further than any other file in the repository.
gradualizer_fmt.format_type_error (cognitive 16) src/gradualizer_fmt.erl:50— gradualizer_fmt.format_type_error has cognitive complexity 16 (threshold 15). Drivers by points: boolean chains 8, match/switch 5, if/else 2, loops 1. To reduce it, name the conditions — but note WHERE they are: these tests sit in guard sequences, and a guard is a restricted expression sublanguage that allows neither binding a local nor calling a function you wrote, so neither of those moves is available in place. Move the decision out of the guard instead: keep one clause with a permissive guard, compute the compound test in the body through named predicate functions, and dispatch on their result. Where the clauses genuinely differ by pattern rather than by test, keep the patterns and lift only the comma-conjunctions.
TooManyFunctions: gradualizer_db src/gradualizer_db.erl:6— TooManyFunctions — 51 functions. The bar is 30 functions; this is 21 over it, 1.70× the bar. The counted members are a module's functions — a module holds no instance state, so there is no shared data to group them by and no type to move them onto. To reduce it, extract each cohesive family of functions into a new module of its own and have this one delegate to it, so no single module carries every responsibility.
Duplicated block (17–18 lines × 2) src/typechecker.erl:2300— src/typechecker.erl:2300-2317 | src/typechecker.erl:2320-2336 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (15 lines × 2) src/typechecker.erl:3225— src/typechecker.erl:3225-3239 | src/typechecker.erl:3278-3292 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (11 lines × 2) src/typechecker.erl:2349— src/typechecker.erl:2349-2359 | src/typechecker.erl:2367-2377 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (10 lines × 2) src/typechecker.erl:5432— src/typechecker.erl:5432-5441 | src/typechecker.erl:5444-5453 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (8–9 lines × 2) src/typechecker.erl:5998— src/typechecker.erl:5998-6005 | src/typechecker.erl:6008-6016 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (8 lines × 2) src/typechecker.erl:3116— src/typechecker.erl:3116-3123 | src/typechecker.erl:3136-3143 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (6 lines × 3) src/typechecker.erl:2871— src/typechecker.erl:2871-2876 | src/typechecker.erl:2951-2956 | src/typechecker.erl:3836-3841 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
Duplicated block (4–5 lines × 4) src/typechecker.erl:2866— src/typechecker.erl:2866-2869 | src/typechecker.erl:2946-2949 | src/typechecker.erl:3801-3805 | src/typechecker.erl:3830-3834 — all 4 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited.
P12 · CI test-gate honesty· Coverage collected but not gated · ×1
Coverage collected but not gated — CI collects a coverage report but no step enforces a minimum — coverage could halve and CI stays green. Add a step that fails the build when coverage drops below a floor (your coverage tool's minimum-threshold flag, or a coverage-gate action) so the number guards something. What was searched, so you can tell an absence from a miss: this repository's CI files AND its coverage configuration — the well-known coverage and test-runner config files, read at the repository root and inside workspace package directories two levels down, so a floor declared beside the tests rather than in the pipeline is credited — matched against the threshold settings this check knows by name. A floor set in your coverage service's web UI rather than in a committed file, or under a setting whose name is not one of those, is not seen here.
Swallowed exception (caught, then discarded) src/typechecker.erl:3467— `catch _:_` takes every exception and records none of it — the body neither logs it, rethrows it, nor even names it, so the failure is discarded as completely as by an empty catch and only the substituted value survives. Log it through whatever this codebase already uses to report problems, narrow the catch to the exception this call can actually raise, or say in a comment on the catch why the failure genuinely cannot matter.
Minor — 41 finding(s)
X31 · Test-only surface in a production module· Test-only surface in a production module · ×19
Test-only surface in a production module src/typechecker.erl:12— `typechecker:type_check_expr/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:type_check_expr_in/3` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:create_env/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:subtype/3` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:subtype_with_constraints/3` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:normalize/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:glb/3` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:type/1` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:type/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:type_diff/3` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:refinable/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:add_types_pats/4` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:compatible/3` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:collect_specs_types_opaques_and_functions/1` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:number_of_exported_functions/1` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:bounded_type_list_to_type/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:unfold_bounded_type/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:minimal_substitution/2` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Test-only surface in a production module src/typechecker.erl:12— `typechecker:type_vars_variances/1` is exported unconditionally, and the comment directly above the `-export` on this line says the exports below it are for testing. Erlang has no visibility below `-export`, so this is part of the module's public contract: it cannot be changed without a compatibility argument. This arm read the comment, not the call graph: if the comment is right and only tests call it, wrapping the attribute in `-ifdef(TEST). … -endif.` keeps the test's access and removes it from the shipped module. If production code calls it, the comment is stale and wrapping the export would break the build — delete the comment and document the function as part of the module's API.
Orphaned file src/gradualizer_type.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/typelib.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer_lib.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer_int.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer_highlight.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer_cli.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer_tracer.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/rebar_prv_gradualizer.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer_bin.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/gradualizer_file_utils.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/constraints.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Orphaned file src/absform.erl:1— No one still active in this repository holds living knowledge of this file: everyone who made a meaningful change to it has gone quiet, or what the current team did to it (moves, reformatting, log-level or import edits, renames) never needed understanding it. If it breaks, no one currently understands it. Attach the read to the next change that touches it: have a second person review that change, and leave behind a short comment or test recording what the file is for.
Documentation: no installation or build instructions README.md— The README has no installation, build, or setup instructions for the repository itself; it only links to GitHub Actions and a Hex.pm badge. Add an install/usage section covering how to get Gradualizer into the mix (hex package, rebar3 plugin) and run the first test.
Documentation: no usage examples README.md— Usage is only sketched in a one-line 'A type checker for Erlang/Elixir' header; there are no command-line examples or an invocation section. Document how to compile and run Gradualizer as an escript, plus the full options list (include/exclude, apps, stop_on_first_error).
D34 · Knowledge Freshness· Further orphaned files (smaller) · ×1
Further orphaned files (smaller) — 13 smaller file(s) also have no living knowledge — folded into the freshness score and metrics rather than raised one row each — most significant first: src/gradualizer_type.erl, src/gradualizer.erl, src/typelib.erl, src/gradualizer_lib.erl, src/gradualizer_int.erl, src/gradualizer_highlight.erl, src/gradualizer_cli.erl, src/gradualizer_tracer.erl (and 5 more) (16 orphaned of 16 analysed files in total, counted over production source files of roughly 2,400 bytes or more, excluding vendored, generated and example/demo trees and test files identified by path convention, largest first; 16 of the 32 production source files in this repository met that bar). Attach the read to the next change that touches one of them: have a second person review that change, and leave behind a short comment or test recording what the file is for, so the knowledge comes back at the cost of a change you were making anyway.
No ADRs — No Architecture Decision Records found — no conventional ADR directory, no numbered `NNNN-title` documents in any markup this check reads, and nothing ADR-shaped by content. Design rationale recorded elsewhere (a design-notes tree, a mailing list, pull-request discussion) is not visible to this check and is not re-findable per decision, so a future maintainer cannot ask why one choice was made and get an answer.
M2 · Architecture documentation· No architecture diagram/doc · ×1
No architecture diagram/doc — No C4/Structurizr/PlantUML/Mermaid/Graphviz/D2 diagram, no drawn diagram named for the architecture, no file named `architecture` or `design` in any markup this check reads, and nothing in the README, docs or contributor guides that announces the shape — no `## Architecture` heading, no "architecture overview"/"high-level design" phrasing, no "the architecture is …" introduction, no guided code tour. A shape laid out in prose that never names itself as the architecture is not visible to this check, and neither is one kept outside the repository, so this row reports the absence of a re-findable shape document — not evidence that nobody wrote the shape down.
README/code drift _build/test/lib/proper/README.md:109— _build/test/lib/proper/README.md documents the environment variable `ERL_LIBS`, but no code, script or configuration file names it. Checked without a model against the repository: its files and folders, the scripts and dependencies of every package.json, the projects, namespaces, package references and target frameworks of the .NET build, the SDK and Node pins, and the identifiers of every file that is not a document; the documents' own text never counts. A footprint generated at build time, read only by a platform, or living outside this repository is not seen, and this row is then wrong.
Appendix B — Reproduction & audit trail
Every external tool invocation behind a deep-scan dimension — the tool, its captured version, the exact command, how many findings it yielded, and a link to the retained raw output. To reproduce any finding: check out the same commit and run the command shown (repo-relative — never an absolute scratch path). The complete raw scanner output is retained verbatim under artifacts/raw/ (indexed in artifacts/raw/index.json); per-invocation exit codes and wall-clock durations are in sidecar.json — kept out of this table so the rendered report stays byte-identical across runs of the same commit.
none (dependency manifest found, not scanned for vulnerabilities here)
—
none (dependency manifest found, not scanned for vulnerabilities here): not applicable — Not scored — no dependency manifest in a supported ecosystem was read for this repository. A gap in the analyzer's language coverage, NOT a finding that the repository is free of vulnerable dependencies (a rebar.config / erlang.mk DEPS (Hex) — not scanned yet).
trivy: not applicable — No Infrastructure-as-Code or container manifests found (Dockerfile, Docker Compose, Terraform, Kubernetes/Helm, CloudFormation, ARM, Bicep, Ansible); nothing to scan.
semgrep: not applicable — No personal data was found crossing a boundary the PII/GDPR ruleset checks — nothing written to a log or console sink, placed in a URL or query string, or persisted to browser storage. That is a clean result for the LEAK surface only: this ruleset detects personal data escaping, it does not inventory the personal data a repository holds, so it is not evidence that this repository has no personal-data surface. The personal-data map (Appendix C) and the C1-C5 compliance cards are what speak to that.
disclosure: not applicable — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.
none (dependency manifest found, not scanned for vulnerabilities here)
—
none (dependency manifest found, not scanned for vulnerabilities here): not applicable — Not scored — no dependency manifest in a supported ecosystem was read for this repository. A gap in the analyzer's language coverage, NOT a finding that the repository is free of vulnerable dependencies (a rebar.config / erlang.mk DEPS (Hex) — not scanned yet).
0
—
Run 01a16a04-f1d0-7882-a707-9db75fbab57a · every finding is also locatable in findings.md, and the complete scoring record (with exit codes + durations) in sidecar.json.
Issues: 9 · Warnings: 142 · Recommendations: 41 — Appendix A · all findings · full markdown report.
Generated by Watchdog — deterministic code-health analysis. 23-10-2026 @ 18:27 UTC.
Downloadable artifacts
Machine-readable and reproducible from this commit + frozen rubric — drop them straight into a contract appendix, a CRA dossier, or a downstream SCA / VEX tool.