Public report — eventhorizon, published 3 Aug 2026. Concrete security findings (CVE IDs, secret matches, dependency versions) are hidden in this version; ask the repo owner for the full report.
Watchdog 03-08-2026 @ 19:20 UTC Public
Code Health Audit

Looplab/eventhorizon

36% At Risk

Small · 13,610 LoC · rebuild ~0.2 person-years · weakest lens: Event Sourcing (10%)

Grounded in facts. Every number here is computed, not narrated — reproducible, tool-backed, and traceable to a line of code. How to trust this ▸

26/28dimensions tool-verifieddeterministic · confidence 1.0 · 2 LLM-assisted, advisory
99findings with an exact file:lineof 110 — the remainder are repo-wide signals (a dimension-level measurement, not a single line); open any file:line and verify
28/97dimensions across the health lenses13610 LoC — wide & deep

Executive summary

Read through the Preview lens: this repo is pre-1.0 / in development, so the colour bands are relaxed to what a preview needs — *green* means good enough for a preview, not yet production-stable. Code correctness and security stay near-strict even here; the score itself is absolute and comparable across repos.

looplab/eventhorizon carries serious gaps (36%). Several issues below can materially affect correctness, security, or the cost of changing it — and propagate to everything that depends on it.

It is strongest in Architecture (100%) — the structure is clean and changes stay contained. Code Health (79%) is solid too.

Most urgent: a critical security exposure was detected (see the Security & Compliance lens). Treat it as a priority regardless of the overall grade.

The area that most needs attention is Event Sourcing (10%) — the event log can't be trusted to replay, risking corrupt state and lost history. Maturity (50%) is the next concern — onboarding is slow — key decisions and the architecture aren't written down, so contributors have to reverse-engineer the intent.

Leadership focus, highest impact first: Move every DateTime/Guid/random value into the event at raise-time (Fold determinism); Record significant decisions one document per decision (Architecture documentation); 'Testing' section to the root README (Documentation (README)).

For scale: Small (~13,610 production lines); rebuilding it from scratch would take roughly ~0.2 person-years (~1 engineer). Approximate, ±~30%.

It builds on a genuinely strong Architecture foundation (100%); the priorities above are the highest-leverage way to bring the rest up to that level.

How the score is built — each lens's share of the headline Width is the lens's weight in the worst-heaviest fold (the weakest area pulls hardest); colour is that lens's own band. A lens fixes the score in proportion to its width.
Event Sourcing 10% · 46% weightMaturity 50% · 25% weightSecurity 56% · 14% weightReadiness 66% · 8% weightCode Health 79% · 4% weightArchitecture 100% · 2% weight

Raise Event Sourcing 10 → 70 (the Healthy floor) ⇒ headline 36 → ~58.

Code composition — where the lines go
Tests 100%
New since the last scan (37+)

37 finding(s) are new versus the previous scan (2026-07-29) — surfaced by this scheduled scan itself, no pull request required.

  • D4 · Duplicated block (24 lines × 2) outbox/memory/graceful.go
  • D4 · Duplicated block (23 lines × 2) eventbus/acceptance_testing.go
  • D4 · Duplicated block (19 lines × 2) eventstore/mongodb/eventstore.go
  • D4 · Duplicated block (18 lines × 5) eventbus/gcp/eventbus.go
  • D4 · Duplicated block (18 lines × 2) codec/bson/event.go
  • D4 · Duplicated block (18 lines × 2) eventbus/gcp/eventbus.go
  • D4 · Duplicated block (18 lines × 2) eventstore/mongodb_v2/eventstore.go
  • D4 · Duplicated block (18 lines × 2) outbox/memory/outbox.go
  • D4 · Duplicated block (16 lines × 3) namespace/outbox.go
  • D4 · Duplicated block (15 lines × 2) repo/acceptance_testing.go
  • D4 · Duplicated block (14 lines × 3) eventstore/mongodb/eventstore.go
  • D4 · Duplicated block (14 lines × 2) codec/acceptance_testing.go
  • D4 · Duplicated block (14 lines × 2) eventbus/nats/eventbus.go
  • D4 · Duplicated block (14 lines × 2) eventstore/memory/eventstore.go
  • D4 · Duplicated block (14 lines × 2) repo/mongodb/repo.go
  • D4 · Duplicated block (13 lines × 2) aggregate.go
  • D4 · Duplicated block (13 lines × 2) eventstore/acceptance_testing.go
  • D4 · Duplicated block (12 lines × 2) eventstore/maintenance_testing.go
  • D4 · Duplicated block (11 lines × 2) codec/bson/event.go
  • D4 · Duplicated block (11 lines × 2) eventbus/acceptance_testing.go
  • D4 · Duplicated block (10 lines × 4) eventstore/mongodb/eventstore.go
  • D4 · Duplicated block (10 lines × 2) eventbus/acceptance_testing.go
  • D4 · Duplicated block (10 lines × 2) eventstore/acceptance_testing.go
  • D4 · Duplicated block (10 lines × 2) eventstore/mongodb/eventstore.go
  • D4 · Duplicated block (9 lines × 3) eventbus/acceptance_testing.go
  • D4 · Duplicated block (9 lines × 3) eventbus/gcp/eventbus.go
  • D4 · Duplicated block (9 lines × 2) codec/bson/command.go
  • D4 · Duplicated block (9 lines × 2) tracing/eventstore.go
  • D4 · Duplicated block (8 lines × 2) codec/bson/event.go
  • D4 · Duplicated block (7 lines × 2) eventbus/acceptance_testing.go
  • D4 · Duplicated block (7 lines × 2) eventbus/gcp/eventbus.go
  • D4 · Duplicated block (5 lines × 2) eventbus/acceptance_testing.go
  • D29 · High: github-actions-mutable-action-tag .github/workflows/codeql-analysis.yml
  • D29 · High: github-actions-mutable-action-tag .github/workflows/codeql-analysis.yml
  • D29 · High: github-actions-mutable-action-tag .github/workflows/codeql-analysis.yml
  • D31 · Medium IaC: CKV2_GHA_1 .github/workflows/codeql-analysis.yml
  • P12 · Coverage collected but not gated

A full-fidelity diff against the previous run's complete recorded findings — line-move tolerant: a finding that only shifted line counts as unchanged, only genuinely new titles/files surface here.

Rebuild cost & value ~ Modeled — €9,300–€47,000
Cost to rebuild€9,300–€47,000 (0.1–0.3 person-years (155–493 h), ~1 engineer)
Domain complexityHigh — harder problems cost more per line
Quality factor0.7× (at 36% quality) — the last 20% of quality is most of the work
Size & shapeSmall · effort split not classified (source measured from disk; the effort-tier breakdown is a C#-only syntax walk)

This codebase represents roughly ~0.2 person-years of build effort (about ~€28,000 to rebuild). Its weakest lens is Event Sourcing at 10% — the part of that asset most exposed by the findings below.

How we model this: boilerplate at a scaffolding rate + logic × domain High (×1.5) — CQRS, event sourcing × a 0.7× quality factor, at €60–95/h; indicative, ±~30% · size measured directly from source · effort from total production LoC as straight-line logic (the tier split is a C#-only syntax walk), a conservative lower bound. Indicative only — most sensitive to the hourly rate and the domain tier (both tunable in config).

Top priorities

The highest-leverage moves; the full ranked list is in the Roadmap below.

1
Move every DateTime/Guid/random value into the event at raise-time, then have the fold read it back — folds must be pure functions of (state, event).
+23.4 pts · Medium effort · Fold determinism
2
Resolve the 1 Off-boarding risk finding(s) in Bus Factor.
+2.7 pts · Low effort · Bus Factor
3
Resolve the 1 Further orphaned files (smaller) finding(s) in Knowledge Freshness.
+2.5 pts · Low effort · Knowledge Freshness

Diagnosis — what's actually going on

Value concentrated against a weak lens · High · Value at risk
This is a Small asset (~0.2 person-years to rebuild), and its weakest lens is Event Sourcing at 10%. The operational and business risk on an asset this size concentrates there — that's where remediation buys the most protection.
Evidence: valuation: Small, ~0.2 person-years rebuild (13,610 LoC) · weakest lens: Event Sourcing 10%
→ Direct remediation budget at Event Sourcing first — highest risk-reduction per euro on an asset this size.
Highest-leverage move · Medium · Leverage
Of everything flagged, the best return on effort is: Move every DateTime/Guid/random value into the event at raise-time, then have the fold read it back — folds must be pure functions of (state, event). The rest can wait behind it.
Evidence: priority ranking: top of 5 ranked by impact/effort
→ Move every DateTime/Guid/random value into the event at raise-time, then have the fold read it back — folds must be pure functions of (state, event).
A velocity tax on every change · Medium · Economics
The code-quality signals (complexity, duplication, cohesion) average 7.2/10, which acts as a tax on every change in the weaker areas: modifications there plausibly cost on the order of 2–5% more than in clean code, and the tax compounds as the codebase grows. (A modelled estimate, not a measured fact.)
Evidence: D1/D2/D4 code quality: averaging 7.2/10 across the code-quality signals actually measured
→ Pay it down where churn is highest — the hotspots — not everywhere; that's where the tax is actually paid.
The top fix pays for itself · Medium · Economics
The top-ranked fix costs roughly 3–10 engineer-days once. Not doing it costs about 0.3–2.2 engineer-days every year, paid as drag on the ~6,627 lines this team changes annually — a bill that arrives whether or not anyone books it. On those figures the fix breaks even in roughly 16–362 months and is free after that. Method, stated so this is not read as a quotation: debt from the ranked task's effort band; interest = annual changed lines (measured, annualised from the 90-day window) ÷ an ASSUMED 150–400 lines per engineer-day × the 2–5% drag implied by the code-quality signals; breaking point = debt ÷ annual interest. A modelled planning range built from measured inputs and one named assumption — not a quotation, a valuation, or a certified figure.
Evidence: D15 churn: 1,634 line(s) changed over a 90-day window ⇒ ~6,627/year · D1/D2/D4 code quality: averaging 7.2/10 ⇒ a 2–5% drag on each change · top-ranked remediation: Medium effort ⇒ about 3–10 engineer-day(s)
→ Do the top-ranked fix now if this code will still be yours in 362 months.

Architecture — module dependency matrix

47 modules, 51 dependencies — every dependency points down the layering, so there are no cycles. Rows and columns are the same modules, ordered so that a module only depends on ones above it. A cell means the row depends on the column, and its number is how many type pairs create that dependency. Read one thing: is anything above the diagonal? A mark there is a dependency cycle. (A cycle is all this shows — an unusual but cycle-free dependency sits below the diagonal like any other.)

…/looplab/eventhorizon…aggregatestore/events…/aggregatestore/model…ab/eventhorizon/codec…enthorizon/codec/bson…enthorizon/codec/json…mandhandler/aggregate…on/commandhandler/bus…eventhorizon/eventbus…thorizon/eventbus/gcp…orizon/eventbus/kafka…orizon/eventbus/local…horizon/eventbus/nats…orizon/eventbus/redis…venthandler/projector…zon/eventhandler/saga…n/eventhandler/waiter…enthorizon/eventstore…zon/eventstore/memory…on/eventstore/mongodb…eventstore/mongodb_v2…n/eventstore/recorder…mples/todomvc/backend…domvc/backend/handler…venthorizon/httputils…/commandhandler/async…e/commandhandler/lock…mandhandler/scheduler…mmandhandler/validate…re/eventhandler/async…venthandler/ephemeral…eventhandler/observer…venthandler/scheduler…venthorizon/namespace…b/eventhorizon/outbox…horizon/outbox/memory…orizon/outbox/mongodb…lab/eventhorizon/repo…ist/domains/guestlist…/backend/domains/todo…/looplab/eventhorizon1…aggregatestore/events2…/aggregatestore/model3…ab/eventhorizon/codec4…enthorizon/codec/bson5…enthorizon/codec/json6…mandhandler/aggregate7…on/commandhandler/bus8…eventhorizon/eventbus9…thorizon/eventbus/gcp10…orizon/eventbus/kafka11…orizon/eventbus/local12…horizon/eventbus/nats13…orizon/eventbus/redis14…venthandler/projector15…zon/eventhandler/saga16…n/eventhandler/waiter17…enthorizon/eventstore18…zon/eventstore/memory19…on/eventstore/mongodb20…eventstore/mongodb_v221…n/eventstore/recorder22…mples/todomvc/backend23…domvc/backend/handler24…venthorizon/httputils25…/commandhandler/async26…e/commandhandler/lock27…mandhandler/scheduler28…mmandhandler/validate29…re/eventhandler/async30…venthandler/ephemeral31…eventhandler/observer32…venthandler/scheduler33…venthorizon/namespace34…b/eventhorizon/outbox35…horizon/outbox/memory36…orizon/outbox/mongodb37…lab/eventhorizon/repo38…ist/domains/guestlist39…/backend/domains/todo40229888531877879743810144537211344133141108138112337112+7 more modules (most-connected shown)

At a glance — Code Health · 79% · Strong

At a glance — Architecture · 100% · Exemplary

At a glance — Maturity · 50% · Adequate · gated by M2

At a glance — Readiness · 66% · Strong

At a glance — Security · 56% · Adequate · gated by D29, D36

At a glance — Event Sourcing · 10% · Critical · gated by ES1

Security & Compliance — OWASP Top-10 mapping

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 categoryFindingsSeverity
A03:2021 — Injection9High / Critical
A06:2021 — Vulnerable & Outdated Components9High / Critical
A05:2021 — Security Misconfiguration1Medium

Roadmap

First, ensure every DateTime, Guid, and random value is captured at event-raise time so that folds remain pure functions of state and events. Next, establish a structured architecture decision record system to document significant design choices and their consequences. Then, update the root README to include a clear 'Testing' section explaining how to run the test suite. Additionally, improve the overall quality of the project documentation to better support users and contributors. Finally, address the single off-boarding risk identified in the bus factor analysis to reduce dependency on any one individual.

Ranked by impact ÷ effort. "Helps" is the estimated gain on the 0–100 health score.

Do thisHelpsEffortDimension
Move every DateTime/Guid/random value into the event at raise-time, then have the fold read it back — folds must be pure functions of (state, event).+23.4 ptsMediumFold determinism
Resolve the 1 Off-boarding risk finding(s) in Bus Factor.+2.7 ptsLowBus Factor
Resolve the 1 Further orphaned files (smaller) finding(s) in Knowledge Freshness.+2.5 ptsLowKnowledge Freshness
Record significant decisions one document per decision — dated, stating the context, the decision and its consequences — and keep them together wherever your design docs already live (a conventional `docs/adr/` tree with `NNNN-title.md` names is the most discoverable form).+4.7 ptsMediumArchitecture documentation
Add a 'Testing' section to the root README — how to run the test suite.+4.6 ptsMediumDocumentation (README)
Resolve the 1 Disclosure policy routes reports to a public channel finding(s) in Vulnerability-disclosure Policy.+1.4 ptsLowVulnerability-disclosure Policy
Improve Documentation Quality — currently 7.0/10.+2.8 ptsMediumDocumentation Quality
Resolve the 6 High finding(s) in Static Analysis (SAST) — start with codeql-analysis.yml (4), release-please.yml (2).+1.1 ptsLowStatic Analysis (SAST)

File quality

Per-file score 0–10 — a quality signature. Of 38 files carrying findings, judged against the Preview bar: 5% slop · 8% mixed · 87% near-clean.

FileScoreBandWorst signal
go.mod1.0SlopOSV Dependency Vulnerabilities: Critical CVE: [GHSA redacted]
.github/workflows/codeql-analysis.yml2.7SlopStatic Analysis (SAST): High: github-actions-mutable-action-tag
eventbus/acceptance_testing.go4.9MixedStatic Analysis (SAST): Medium: math-random-used
.github/workflows/release-please.yml5.8MixedStatic Analysis (SAST): High: github-actions-mutable-action-tag
outbox/performance_testing.go6.4MixedStatic Analysis (SAST): Medium: math-random-used
eventstore/mongodb/eventstore.go7.1Near-cleanCyclomatic Complexity: EventStore.Save (cyclomatic 21)
eventstore/mongodb_v2/eventstore.go7.1Near-cleanCyclomatic Complexity: EventStore.saveInTX (cyclomatic 18)
eventbus/gcp/eventbus.go7.1Near-cleanCognitive Complexity: gcp.NewEventBus (cognitive 16)
eventstore/acceptance_testing.go7.2Near-cleanCyclomatic Complexity: eventstore.AcceptanceTest (cyclomatic 27)
examples/todomvc/backend/domains/todo/aggregate.go7.2Near-cleanCyclomatic Complexity: Aggregate.HandleCommand (cyclomatic 27)
eventstore/maintenance_testing.go7.2Near-cleanCyclomatic Complexity: eventstore.MaintenanceAcceptanceTest (cyclomatic 19)
repo/acceptance_testing.go7.4Near-cleanCyclomatic Complexity: repo.AcceptanceTest (cyclomatic 27)
outbox/acceptance_testing.go7.4Near-cleanCyclomatic Complexity: outbox.AcceptanceTest (cyclomatic 25)
eventstore/memory/eventstore.go7.4Near-cleanCognitive Complexity: EventStore.save (cognitive 17)
codec/bson/event.go7.4Near-cleanCode Duplication: Duplicated block (18 lines × 2)
eventhandler/projector/eventhandler.go7.8Near-cleanCyclomatic Complexity: EventHandler.HandleEvent (cyclomatic 25)
examples/todomvc/backend/main.go7.8Near-cleanCyclomatic Complexity: main.main (cyclomatic 23)
examples/guestlist/domains/guestlist/aggregate.go7.8Near-cleanCyclomatic Complexity: InvitationAggregate.HandleCommand (cyclomatic 18)
examples/todomvc/backend/domains/todo/projector.go7.8Near-cleanCyclomatic Complexity: Projector.Project (cyclomatic 18)
compare.go7.8Near-cleanCyclomatic Complexity: eventhorizon.CompareEvents (cyclomatic 17)

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. 26 of 28 evaluated dimensions are computed purely by tools and static analysis (confidence 1.0); 2 documentation/naming judgement(s) are LLM-assisted and labelled advisory. Overall confidence is 0.6 — 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 — 28 dimensions across the health lenses
D1D2D3D4D13D15D16D19D21D28D29D31D34D35D36D37D38AX5ES1M1M2M3M4P1P3P4P5P6

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
  1. 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, 99 of 110 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.)
  2. 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.
  3. 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.

MethodBacksVersionEvaluator
Roslyn static analysisComplexity, cohesion, coupling, dead code, API surface, layering5.3.0✓ deterministic
Native secret scannerHardcoded secrets / credentials1.0.0✓ deterministic
jscpdCode duplication✓ deterministic
Coverage (coverlet / dotnet-coverage)Line & branch coverage10.0.302✓ deterministic
NuGet / dotnetOutdated, vulnerable & deprecated dependencies10.0.302✓ deterministic
git / LibGit2SharpChurn hotspots, knowledge concentration, history2.43.0 · 0.31.0✓ deterministic
gitleaks · semgrep · trivy · checkovSecrets in history, SAST, CVEs, IaC & container, PII / GDPR1.86.0 · 0.69.3 · 3.2.533✓ deterministic
LLM (sampled · advisory)Documentation quality, ADR conformance, naming — sampled over a bounded sample; advisory, never a deterministic measurementLocal LLM◐ LLM · sampled · advisory

Every finding is locatable in findings.md. Run 019fc912-5559-7c74-8408-c7efd78b42ef.

The exact command behind every deep-scan dimension — tool, version, invocation and retained raw output — is in Appendix B — Reproduction & audit trail.

Run transparency — what happened this run

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.

  • D30 Dependency Vulnerabilities — scanner not present in this environment — The backing tool was not installed where this scan ran, so this dimension was not scored. Install the tool (or run in the hosted environment, where it is always present) for a graded result.

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 (jscpd) — 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.
  • 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.
  • 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.
  • 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.
  • 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").
  • D31 IaC & Container Security: IaC scanning checks Dockerfiles/Terraform/Kubernetes against best-practice rules — it cannot see the live cloud account, runtime configuration, or drift between the committed config and what is actually deployed.
  • 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.
  • 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.
  • P4 Deployment & Rollback: Approval/branch-protection rules live in repository settings the scan cannot see — only their in-repo evidence (config files, workflows) is checked, so a control enforced purely in the host's settings reads as "not evidenced".
  • P5 DR & Backup: Backup/restore and disaster-recovery readiness is judged from in-repo evidence — a config that exists is not a tested restore, so the absence of positive evidence is reported as "not evidenced", never scored as present.
  • 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 (documentation, ADR quality, naming, comment value, onboarding) — D25 sets the ADR-conformance fraction over sampled code, D22 judges API accuracy over a sample. These 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.

Dimensions

D1 · Cyclomatic Complexity7.5 / 10Strong✓ Tool-verified

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.

Maturity: DocumentedVerifiedPrevented · effective 7.5 / 10 · rule-coverage 100% · ceiling Prevented

15 method(s) exceeded the cyclomatic complexity threshold of 15; the worst was eventbus.AcceptanceTest at 47.

eventbus.AcceptanceTest (cyclomatic 47)eventbus/acceptance_testing.go:66
eventstore.AcceptanceTest (cyclomatic 27)eventstore/acceptance_testing.go:39
Aggregate.HandleCommand (cyclomatic 27)examples/todomvc/backend/domains/todo/aggregate.go:53
repo.AcceptanceTest (cyclomatic 27)repo/acceptance_testing.go:37
EventHandler.HandleEvent (cyclomatic 25)eventhandler/projector/eventhandler.go:177

+ 10 more group(s) — more in Appendix A; the complete list is findings.md.

What to do

  1. Resolve the 1 eventbus.AcceptanceTest (cyclomatic 47) finding(s) in Cyclomatic Complexity — start with acceptance_testing.go. — One of this dimension's main actionable groups (1 warning-level).
  2. Resolve the 1 eventstore.AcceptanceTest (cyclomatic 27) finding(s) in Cyclomatic Complexity — start with acceptance_testing.go. — One of this dimension's main actionable groups (1 warning-level).
  3. Resolve the 1 Aggregate.HandleCommand (cyclomatic 27) finding(s) in Cyclomatic Complexity — start with aggregate.go. — One of this dimension's main actionable groups (1 warning-level).
  4. 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.

D2 · Cognitive Complexity5.3 / 10Adequate✓ Tool-verified

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.

Maturity: DocumentedVerifiedPrevented · effective 5.3 / 10 · rule-coverage 100% · ceiling Prevented

29 method(s) exceeded the cognitive complexity threshold of 15; the worst was eventbus.AcceptanceTest at 51.

eventbus.AcceptanceTest (cognitive 51)eventbus/acceptance_testing.go:66
Aggregate.HandleCommand (cognitive 45)examples/todomvc/backend/domains/todo/aggregate.go:53
EventHandler.HandleEvent (cognitive 38)eventhandler/projector/eventhandler.go:177
EventStore.Save (cognitive 38)eventstore/mongodb/eventstore.go:158
EventBus.handle (cognitive 32)eventbus/kafka/eventbus.go:354

+ 24 more group(s) — more in Appendix A; the complete list is findings.md.

What to do

  1. Resolve the 1 eventbus.AcceptanceTest (cognitive 51) finding(s) in Cognitive Complexity — start with acceptance_testing.go. — One of this dimension's main actionable groups (1 warning-level).
  2. Resolve the 1 Aggregate.HandleCommand (cognitive 45) finding(s) in Cognitive Complexity — start with aggregate.go. — One of this dimension's main actionable groups (1 warning-level).
  3. Resolve the 1 EventHandler.HandleEvent (cognitive 38) finding(s) in Cognitive Complexity — start with eventhandler.go. — One of this dimension's main actionable groups (1 warning-level).
  4. 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.

D3 · God Classes9.7 / 10Exemplary✓ 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.

Maturity: DocumentedVerifiedPrevented · effective 9.7 / 10 · rule-coverage 100% · ceiling Prevented

1 god class(es) detected.

FileTooLong: mongodb_v2/eventstore.goeventstore/mongodb_v2/eventstore.go:0

✓ On the Gold path — maintain.

Detailed fixes: d3_recommendation.md · top locations in Appendix A, every location in findings.md.

D4 · Code Duplication8.9 / 10Strong✓ Tool-verified

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.

Maturity: DocumentedVerifiedPrevented · effective 8.9 / 10 · rule-coverage 100% · ceiling Verified

35 duplicated block group(s) detected.

Duplicated block (18 lines × 2) · ×4codec/bson/event.go:86
Duplicated block (14 lines × 2) · ×4codec/acceptance_testing.go:62
Duplicated block (10 lines × 2) · ×3eventbus/acceptance_testing.go:39
Duplicated block (13 lines × 2) · ×2aggregate.go:101
Duplicated block (12 lines × 2) · ×2outbox/acceptance_testing.go:132

+ 15 more group(s) — more in Appendix A; the complete list is findings.md.

What to do

  1. Resolve the 4 Duplicated block (18 lines × 2) finding(s) in Code Duplication — start with event.go, eventbus.go, eventstore.go. — One of this dimension's main actionable groups (4 warning-level).
  2. Resolve the 4 Duplicated block (14 lines × 2) finding(s) in Code Duplication — start with acceptance_testing.go, eventbus.go, eventstore.go. — One of this dimension's main actionable groups (4 warning-level).
  3. Resolve the 3 Duplicated block (10 lines × 2) finding(s) in Code Duplication — start with acceptance_testing.go (2), eventstore.go. — One of this dimension's main actionable groups (3 warning-level).
  4. 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.

D13 · Secret Scanning10.0 / 10Exemplary○ Nothing flagged

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.

Maturity: DocumentedVerifiedPrevented · effective 10.0 / 10 · rule-coverage 100% · ceiling Prevented

Secret scan ran and found no leaked secrets.

✓ On the Gold path — maintain.

Detailed fixes: d13_recommendation.md.

D15 · Churn × Complexity Hotspots9.8 / 10Exemplary✓ Tool-verified

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.

Maturity: DocumentedVerifiedPrevented · effective 9.8 / 10 · rule-coverage 100% · ceiling Documented

Top hotspots: eventstore/mongodb_v2/eventstore.go (2×18=36)

Hotspot: eventstore/mongodb_v2/eventstore.goeventstore/mongodb_v2/eventstore.go

✓ On the Gold path — maintain.

Detailed fixes: d15_recommendation.md · top locations in Appendix A, every location in findings.md.

D16 · Bus Factor5.7 / 10Adequate✓ 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.

Maturity: DocumentedVerifiedPrevented · effective 5.7 / 10 · rule-coverage 100% · ceiling Documented

24 source file(s) have their living knowledge concentrated in one author (≥90% of recent, decayed contribution). The largest is mocks/mocks.go.

Off-boarding risk: anonymized user #1

What to do

  1. Resolve the 1 Off-boarding risk finding(s) in Bus Factor. — One of this dimension's main actionable groups (1 recommendation-level).

Detailed fixes: d16_recommendation.md · top locations in Appendix A, every location in findings.md.

D19 · Documentation Quality / 10Strong◐ Sampled · advisory

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.

Maturity: DocumentedVerifiedPrevented · effective Strong / 10 · rule-coverage 100% · ceiling Documented

The project has a strong README with an eventhorizon.org-style overview of CQRS/ES concepts and links to major authors/contributors plus a dedicated Usage section. The examples directory contains a TodoMVC demo that runs locally (with Elm) and Docker; the document is clipped mid-Usage, so further sections like Event Store Implementations and Contributions are present in the outline but not shown. It is clear documentation for an existing toolkit.

What to do

  1. Improve Documentation Quality — currently 7.0/10. — The project has a strong README with an eventhorizon.org-style overview of CQRS/ES concepts and links to major authors/contributors plus a dedicated Usage section. The examples directory contains a TodoMVC demo that runs locally (with Elm) and Docker; the document is clipped mid-Usage, so further sections like Event Store Implementations and Contributions are present in the outline but not shown. It is clear documentation for an existing toolkit.

Detailed fixes: d19_recommendation.md.

D21 · Naming Consistency / 10Exemplary◐ Sampled · advisory

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.

Maturity: DocumentedVerifiedPrevented · effective Exemplary / 10 · rule-coverage 100% · ceiling Verified

0 naming inconsistencies across 0 sampled symbols.

✓ On the Gold path — maintain.

Detailed fixes: d21_recommendation.md.

D28 · Secrets (history)10.0 / 10Exemplary○ Nothing flagged

What it measures: Whether any secrets were ever committed — scanned across the full git history, not just now.

Method: Git-history secret scan via gitleaks detect over full history in an isolated checkout; each match flagged High. Exhaustive; degrades cleanly when tool absent.

Maturity: DocumentedVerifiedPrevented · effective 10.0 / 10 · rule-coverage 100% · ceiling Documented

gitleaks scanned the full history AND the current working tree and found no secrets.

✓ On the Gold path — maintain.

Detailed fixes: d28_recommendation.md.

D29 · Static Analysis (SAST)3.1 / 10Weak✓ Tool-verified

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).

Maturity: DocumentedVerifiedPrevented · effective 3.1 / 10 · rule-coverage 100% · ceiling Documented

9 finding(s): 0 critical, 6 high, 2 medium, 1 low.

High: github-actions-mutable-action-tag · ×6.github/workflows/codeql-analysis.yml:27detected by semgrep finding
Medium: math-random-used · ×2eventbus/acceptance_testing.go:21detected by semgrep finding
Low: websocket-missing-origin-checkhttputils/eventbus.go:70detected by semgrep finding

What to do

  1. Resolve the 6 High finding(s) in Static Analysis (SAST) — start with codeql-analysis.yml (4), release-please.yml (2). — One of this dimension's main actionable groups (6 issue-level).
  2. Resolve the 2 Medium finding(s) in Static Analysis (SAST) — start with acceptance_testing.go, performance_testing.go. — One of this dimension's main actionable groups (2 warning-level).
  3. Resolve the 1 Low finding(s) in Static Analysis (SAST) — start with eventbus.go. — One of this dimension's main actionable groups (1 recommendation-level).

Detailed fixes: d29_recommendation.md · top locations in Appendix A, every location in findings.md.

D31 · IaC & Container Security9.9 / 10Exemplary✓ Tool-verified

What it measures: Whether Dockerfiles / Terraform / Kubernetes config follow security best practices.

Method: IaC/container misconfiguration scan via trivy config (Dockerfile/Terraform/K8s/Helm/CloudFormation); severity rules to 0-10 moderate normalizer. NotApplicable without manifests. Exhaustive, deterministic.

Maturity: DocumentedVerifiedPrevented · effective 9.9 / 10 · rule-coverage 100% · ceiling Documented

1 finding(s): 0 critical, 0 high, 1 medium, 0 low.

Medium IaC: CKV2_GHA_1.github/workflows/codeql-analysis.yml:15detected by trivy finding

✓ On the Gold path — maintain.

Detailed fixes: d31_recommendation.md · top locations in Appendix A, every location in findings.md.

D34 · Knowledge Freshness6.1 / 10Adequate✓ Tool-verified

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.

Maturity: DocumentedVerifiedPrevented · effective 6.1 / 10 · rule-coverage 100% · ceiling Documented

22 of 56 significant source file(s) are orphaned — their living knowledge has decayed to nothing, so no one currently understands them. The largest is eventbus/redis/eventbus.go.

Further orphaned files (smaller)

What to do

  1. 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.

D35 · Change Coupling10.0 / 10Exemplary✓ Tool-verified

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; coupling through a build step, config, or non-source file isn't seen.

Maturity: DocumentedVerifiedPrevented · effective 10.0 / 10 · rule-coverage 100% · ceiling Documented

No strong hidden change-coupling between production files.

✓ On the Gold path — maintain.

Detailed fixes: d35_recommendation.md.

D36 · Supply-chain Provenance & Signing0.0 / 10Critical✓ Tool-verified

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.

Maturity: DocumentedVerifiedPrevented · effective 0.0 / 10 · rule-coverage 100% · ceiling Documented

0/4 supply-chain integrity signals present (provenance, signing, SBOM, pinned actions).

Unpinned build actions
No build provenance
No artifact signing
No SBOM

What to do

  1. Resolve the 1 Unpinned build actions finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 warning-level).
  2. Resolve the 1 No build provenance finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 recommendation-level).
  3. Resolve the 1 No artifact signing 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.

D37 · Vulnerability-disclosure Policy4.0 / 10Weak✓ Tool-verified

What it measures: Whether the repository publishes a coordinated-vulnerability-disclosure policy (SECURITY.md or security.txt) with a reporting contact, so finders know how to report a vulnerability. Presence of a policy file with a contact, not whether the policy is adequate or honoured.

Method: Vulnerability-disclosure policy read deterministically from the repo: a SECURITY.md (root/.github/docs) or .well-known/security.txt / security.txt, regex-checked for a reporting contact (email / URL / mailto). Present + contact → 10; present without a contact → 4; NotApplicable when no policy file exists (it may live off-repo). Detects the policy file's presence + contact, not its adequacy.

Maturity: DocumentedVerifiedPrevented · effective 4.0 / 10 · rule-coverage 100% · ceiling Documented

A vulnerability-disclosure policy (SECURITY.md) is present but only routes reports to a public channel (no private reporting contact).

Disclosure policy routes reports to a public channel

What to do

  1. Resolve the 1 Disclosure policy routes reports to a public channel finding(s) in Vulnerability-disclosure Policy. — One of this dimension's main actionable groups (1 recommendation-level).

Detailed fixes: d37_recommendation.md · top locations in Appendix A, every location in findings.md.

D38 · OSV Dependency Vulnerabilities6.6 / 10Adequate✓ Tool-verified

What it measures: Whether dependencies have known published vulnerabilities (CVEs) per the OSV database — read natively from whatever lockfile the repository ships (Cargo, npm, Go, Python, Maven, RubyGems, …). D33 and D30 add ecosystem-specific scanners on top for npm and .NET.

Method: Multi-ecosystem dependency-CVE scan via osv-scanner --recursive (queries the osv.dev database + parses lockfiles natively across ecosystems: npm package-lock/yarn/pnpm/bun, Go go.mod, Rust Cargo.lock, Maven/Gradle pom.xml/gradle.lockfile, PyPI requirements.txt/poetry.lock/Pipfile.lock, Composer composer.lock, RubyGems Gemfile.lock, Hex mix.lock, pub pubspec.lock, Swift Package.resolved); severity tally (Critical/High/Medium/Low) to 0-10 tight normalizer (8.0). NotApplicable only when the repo declares no supported non-.NET dependency lockfile (a NuGet-only repo stays NotApplicable — .NET CVEs are D30's domain); coverage needs a resolved lockfile. Additive to D33 (trivy fs); exhaustive + deterministic, DB kept fresh.

Maturity: DocumentedVerifiedPrevented · effective 6.6 / 10 · rule-coverage 100% · ceiling Documented

8 finding(s): 1 critical, 2 high, 5 medium, 0 low.

Critical CVE: [GHSA redacted]go.moddetected by osv-scanner finding
High CVE: [GHSA redacted]go.moddetected by osv-scanner finding
High vulnerability: [GHSA redacted]go.moddetected by osv-scanner finding
Medium CVE: [GHSA redacted] · ×4go.moddetected by osv-scanner finding
Medium vulnerability: GO-2026-5841go.moddetected by osv-scanner finding

What to do

  1. Resolve the 1 Critical CVE finding(s) in OSV Dependency Vulnerabilities — start with go.mod. — One of this dimension's main actionable groups (1 issue-level).
  2. Resolve the 1 High CVE finding(s) in OSV Dependency Vulnerabilities — start with go.mod. — One of this dimension's main actionable groups (1 issue-level).
  3. Resolve the 1 High vulnerability finding(s) in OSV Dependency Vulnerabilities — start with go.mod. — One of this dimension's main actionable groups (1 issue-level).

Detailed fixes: d38_recommendation.md · top locations in Appendix A, every location in findings.md.

Frontend & cross-cutting dimensions

R = React/JS · M = Maturity · P = Readiness.

AX5 · Architecture & structure10.0 / 10Exemplary✓ Tool-verified

Other · Architecture — Whether the codebase has a recognisable, scale-appropriate structure (a named architectural style, or modular enough for its size) rather than being an ad-hoc ball of mud.

Method: Roslyn plus csproj analysis: architecture style detection (DDD, clean, vertical-slice, CQRS) and structure fitness for repo size. Deterministic.

ES1 · Fold determinism1.0 / 10Critical✓ Tool-verified

Other · Event Sourcing — Whether Apply/When folds reconstruct state purely from the event (no DateTime.Now, Guid.NewGuid, Random or IO) 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.

  • The event-sourcing fold calls log.Print — replaying the same events would produce different state, silently corrupting the aggregate over time. Folds must derive state purely from the event payload; capture the timestamp/id/random value IN the event when it is first raised, then read it back here. — aggregate.go:138

What to do

  • Move every DateTime/Guid/random value into the event at raise-time, then have the fold read it back — folds must be pure functions of (state, event).
M1 · Documentation (README)5.2 / 10Adequate✓ Tool-verified

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.

  • 63 code files changed in the last 6 months but the README was not touched — it may no longer reflect the system.

What to do

  • Add a 'Testing' section to the root README — how to run the test suite.
  • Add an 'Architecture' / 'How it works' section to the root README — the high-level shape.
  • Review the README against recent changes; refresh the parts that drifted.
M2 · Architecture documentation0.0 / 10Critical✓ Tool-verified

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 `NNNN-title.md` documents 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/PlantUML/Mermaid diagram or architecture.md — the high-level shape isn't documented.

What to do

  • Record significant decisions one document per decision — dated, stating the context, the decision and its consequences — and keep them together wherever your design docs already live (a conventional `docs/adr/` tree with `NNNN-title.md` names is the most discoverable form).
  • Add a C4 context/container diagram (Structurizr, PlantUML or Mermaid) or an architecture.md overview.
M3 · Folder & project structure10.0 / 10Exemplary✓ Tool-verified

Maturity · Maturity — Whether the repo is organised deliberately — src/test separation and consistent project naming.

Method: Filesystem scan: src/test folder separation and namespace-prefix consistency (majority RootNamespace agreement). Exhaustive across projects, deterministic.

M4 · Documentation accuracy10.0 / 10Exemplary◐ Sampled · advisory

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.

P1 · CI/CD gates10.0 / 10Exemplary○ Nothing flagged

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.

P3 · Security & performance tooling5.0 / 10Adequate✓ Tool-verified

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.
P4 · Deployment & Rollback8.0 / 10Strong✓ Tool-verified

Readiness · Readiness — Whether releases are automated and safely reversible (probes, rolling updates, approval gates) — from manifests/pipeline files, not the live environment.

Method: Filesystem scan: deployment manifests/IaC (K8s YAML, Helm, Terraform) for rolling updates, probes, approval gates, migration hooks. Exhaustive, deterministic.

What to do

  • Add an approval/environment gate (required reviewers / protection rules) before production promotion.
P5 · DR & Backup7.0 / 10Strong✓ Tool-verified

Readiness · Readiness — Whether disaster recovery is planned and codified — backups, geo-recovery, RTO/RPO, persistence guarantees — from IaC + container manifests + docs, never the live cloud.

Method: Filesystem scan: disaster recovery, backup, geo-recovery, RTO/RPO, persistence guarantees from IaC, manifests, and docs. Exhaustive, deterministic, never a live environment.

What to do

  • Document RTO/RPO and a tested restore procedure (a backup config alone isn't disaster recovery).
P6 · Release Hygiene5.0 / 10Adequate✓ Tool-verified

Readiness · Readiness — Whether releases are traceable — a maintained changelog and explicit version stamping.

Method: Filesystem scan: changelog file presence and version tags in csproj or git tags. Exhaustive, deterministic.

What to do

  • Stamp a version in your build/package manifest (e.g. csproj <Version>, package.json, pyproject.toml, Cargo.toml, or a VERSION file) or tag releases with semver so builds and releases are traceable.

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.

LensScoreRatingImpact
Code Health79%StrongSolid.
Architecture100%ExemplaryStrongest area.
Maturity50%Adequate — gated by M2Capped at Fair by a Critical contributor — resolve it before relying on this lens.
Readiness66%StrongSolid.
Security56%Adequate — gated by D29, D36Capped at Fair by a Critical contributor — resolve it before relying on this lens.
Event Sourcing10%Critical — gated by ES1Capped at Fair by a Critical contributor — resolve it before relying on this lens.
Not included — 69 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 — no DI registrations detected
  • AX10 Code composition — not assessed — code composition is computed by ROLE over a document set 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
  • AX2 Stateful singletons — no singleton implementations detected
  • AX3 Project dependency cycles — not assessed — project cycles and dependency direction are computed over a project-reference graph 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
  • AX4 Dependency direction — not applicable to a CQRS architecture (the inward-dependency rule is for layered/clean styles)
  • 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 — not assessed — test isolation is computed from a project graph (which projects are test projects, and what they reference) 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
  • AX9 CQS / query purity — no CQRS query handlers detected — query purity is not applicable to this codebase
  • AXB2 Runtime readiness — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
  • 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.
  • 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.
  • D10 Test Quality — ~9121 lines of test source are present (.go) but the test-quality collector reads C# only, so skipped/assertion-free tests couldn't be counted. Not scored — this is a gap in the analyzer, not a finding about this repository.
  • D11 Test Reliability — Test reliability not included
  • D12 Dependency Hygiene — Dependency hygiene not measured — dependency manifest found but not parsed for hygiene
  • D14 License Compliance — 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 Go module (go.mod/go.sum)), which this pass does not parse yet — so this dimension asserts nothing about this repository's licensing in either direction.
  • D17 Explicit Debt — explicit-debt markers are read through a C# workspace today, so they were not read for this repository's language — this asserts nothing about how many markers the code carries. Not scored — this is a gap in the analyzer, not a finding about this repository
  • 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 — No exposed public API
  • D23 Boundary Type-Coupling — Production source is present (.go) but bounded contexts are resolved over the C#/VB project set, which exposed none, so context scope could not be assessed. Not scored — this is a gap in the analyzer, not a verdict about this repository. Declaring the codebase's bounded contexts (≥2) would let cross-boundary type coupling be assessed — see the recommendation on this dimension for where. 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
  • D26 Project Cohesion — Project cohesion is assessed over the .NET project set; this target exposed no projects, so project size and spread could not be assessed. Not scored — this is a gap in the analyzer's reach, not a verdict about this repository.
  • D27 Navigability — No calls could be sampled, so navigability was not assessed — tracing effort is measured over resolved call sites and this target exposed none. Not scored — this is a gap in the analyzer's reach, not a verdict about this repository.
  • 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 Go module (go.mod/go.sum) — not scanned yet) — where an OSV-supported manifest exists, dependency vulnerabilities for this repository are reported under D38 instead.
  • D32 Data Compliance (PII/GDPR) — No PII/GDPR-handling patterns detected (p/gdpr ruleset) — no data-compliance surface to assess.
  • D33 JS/npm Dependency Vulnerabilities — No JS/npm manifest or lockfile found outside build output (package.json, package-lock.json, yarn.lock, pnpm-lock.yaml, bun.lockb); no JS dependencies to scan.
  • 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.
  • D5 Coupling — Inter-project coupling could not be assessed — no analyzable project graph was found for this repository. Not scored: a gap in the analyzer's reach, not a verdict about this repository. (Coupling here is Martin afferent/efferent/instability plus reference cycles across a project-reference graph, read today from .NET project files; other ecosystems' module graphs are not read yet.)
  • D6 Cohesion (LCOM4) — Cohesion (LCOM4) is measured over a C#/VB class graph, and this repository's production source is mostly .go, which this pass does not read, so cohesion was not assessed for this repository. Not scored — this is a gap in the analyzer, not a finding about this repository.
  • 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 (.go) but the test-pyramid classifier reads C# only, 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 — applicable but not scored (2 of 2 signals for this style — below the bar we score at): 20 aggregate root(s) (types guarding their own state behind command methods — this language has no AggregateRoot base to inherit); a Domain/Aggregates/ValueObjects layer
  • ED1 Event-Driven — applicable but not scored (2 of 3 signals for this style — below the bar we score at): 4 CQRS handler(s); 11 event-sourced shape(s) (event folds / event-recording aggregates)
  • ED5 Idempotency — no mutating command handlers or message consumers detected — idempotency check not applicable
  • ES2 Immutable events — no persisted event types detected — immutability check not applicable
  • ES3 PII in the event store — no persisted event types detected — PII-in-events check not applicable
  • GD1 Unfinished & placeholder code — no source files
  • 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
  • P12 CI test-gate honesty — 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.
  • P2 Observability — Observability was not assessed: this check reads a source model that does not carry this repository's product — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of a logging idiom this check recognises is NOT evidence that this repo lacks structured logging (it may log through its own ecosystem's logger). This is a gap in the analyzer, not a finding about this repository.
  • P7 Outbound HTTP resilience — not measured — the application kind could not be determined for this repo
  • P8 Schema migrations — not assessed — schema-migration practice is read from 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 (`go test -coverprofile=coverage.out ./...`) into the repo working tree before the scan — a CI step is the usual place, since the artefact is commonly gitignored, or wire coverage collection into CI, to enable this cross-layer check
  • PF1 Benchmark discipline — Performance was not assessed: this lens reads a source model that was not loaded for this repository, because the repository is written in a language this lens does not yet model or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository — in particular it is NOT a statement that this repo is unpackaged or performance-careless.
  • PF2 Allocation hygiene — Performance was not assessed: this lens reads a source model that was not loaded for this repository, because the repository is written in a language this lens does not yet model or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository — in particular it is NOT a statement that this repo is unpackaged or performance-careless.
  • PF3 Async & latency hygiene — Performance was not assessed: this lens reads a source model that was not loaded for this repository, because the repository is written in a language this lens does not yet model or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository — in particular it is NOT a statement that this repo is unpackaged or performance-careless.
  • 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.
  • SC1 Supply-chain hygiene — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
  • 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
  • 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
  • X3 Exception handling — 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
  • 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

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.

Issue — 9 finding(s)
D29 · Static Analysis (SAST) · High · ×6
  • High: github-actions-mutable-action-tag .github/workflows/codeql-analysis.yml:27 — GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/checkout@<40-character SHA>`. This step references `actions/checkout@v4`; resolve the SHA it points at today with `gh api repos/actions/checkout/commits/v4 --jq .sha`.
  • High: github-actions-mutable-action-tag .github/workflows/codeql-analysis.yml:30 — GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: github/codeql-action/init@<40-character SHA>`. This step references `github/codeql-action/init@v4`; resolve the SHA it points at today with `gh api repos/github/codeql-action/commits/v4 --jq .sha`. `github/codeql-action/init` is hosted INSIDE the `github/codeql-action` repository (a subdirectory action or a reusable workflow), so the SHA to pin is that repository's commit — keep the full `github/codeql-action/init` path in `uses:` and query only `github/codeql-action`.
  • High: github-actions-mutable-action-tag .github/workflows/codeql-analysis.yml:35 — GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: github/codeql-action/autobuild@<40-character SHA>`. This step references `github/codeql-action/autobuild@v4`; resolve the SHA it points at today with `gh api repos/github/codeql-action/commits/v4 --jq .sha`. `github/codeql-action/autobuild` is hosted INSIDE the `github/codeql-action` repository (a subdirectory action or a reusable workflow), so the SHA to pin is that repository's commit — keep the full `github/codeql-action/autobuild` path in `uses:` and query only `github/codeql-action`.
  • High: github-actions-mutable-action-tag .github/workflows/codeql-analysis.yml:38 — GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: github/codeql-action/analyze@<40-character SHA>`. This step references `github/codeql-action/analyze@v4`; resolve the SHA it points at today with `gh api repos/github/codeql-action/commits/v4 --jq .sha`. `github/codeql-action/analyze` is hosted INSIDE the `github/codeql-action` repository (a subdirectory action or a reusable workflow), so the SHA to pin is that repository's commit — keep the full `github/codeql-action/analyze` path in `uses:` and query only `github/codeql-action`.
  • High: github-actions-mutable-action-tag .github/workflows/release-please.yml:17 — GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: googleapis/release-please-action@<40-character SHA>`. This step references `googleapis/release-please-action@v4`; resolve the SHA it points at today with `gh api repos/googleapis/release-please-action/commits/v4 --jq .sha`.
  • High: github-actions-mutable-action-tag .github/workflows/release-please.yml:23 — GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/checkout@<40-character SHA>`. This step references `actions/checkout@v4`; resolve the SHA it points at today with `gh api repos/actions/checkout/commits/v4 --jq .sha`.
D38 · OSV Dependency Vulnerabilities · Critical CVE · ×1
  • Critical CVE: [GHSA redacted] go.mod — golang.org/x/crypto 0.49.0: [GHSA redacted] — golang.org/x/crypto is not a DIRECT requirement of this module: go.mod records it as `// indirect`, pulled in transitively, so raise it in place (run `go get golang.org/x/crypto@v0.52.0`, which updates the require line go.mod already holds for it). This one row stands for the 14 advisories this scan raises against golang.org/x/crypto 0.49.0: [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], GO-2026-5932.
D38 · OSV Dependency Vulnerabilities · High CVE · ×1
  • High CVE: [GHSA redacted] go.mod — github.com/docker/docker 28.5.2+incompatible: [GHSA redacted] — no fixed version has been published yet. Track the advisory; github.com/docker/docker is not a DIRECT requirement of this module: go.mod records it as `// indirect`, pulled in transitively, so the action is on the dependency that requires it — upgrade or replace that dependent. This one row stands for the 5 advisories this scan raises against github.com/docker/docker 28.5.2+incompatible: [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted], [GHSA redacted].
D38 · OSV Dependency Vulnerabilities · High vulnerability · ×1
  • High vulnerability: [GHSA redacted] go.mod — google.golang.org/grpc 1.79.3: [GHSA redacted] — upgrade to 1.82.1
Warning — 90 finding(s)
D38 · OSV Dependency Vulnerabilities · Medium CVE · ×4
  • Medium CVE: [GHSA redacted] go.mod — golang.org/x/net 0.52.0: [GHSA redacted] — golang.org/x/net is not a DIRECT requirement of this module: go.mod records it as `// indirect`, pulled in transitively, so raise it in place (run `go get golang.org/x/net@v0.55.0`, which updates the require line go.mod already holds for it). This one row stands for the 8 advisories this scan raises against golang.org/x/net 0.52.0: [GHSA redacted], GO-2026-4918, GO-2026-5025, GO-2026-5026, GO-2026-5027, GO-2026-5029, GO-2026-5030, GO-2026-5942.
  • Medium CVE: GO-2026-5024 go.mod — golang.org/x/sys 0.42.0 (golang.org/x/sys/windows): GO-2026-5024 — golang.org/x/sys is not a DIRECT requirement of this module: go.mod records it as `// indirect`, pulled in transitively, so raise it in place (run `go get golang.org/x/sys@v0.44.0`, which updates the require line go.mod already holds for it).
  • Medium CVE: GO-2026-5970 go.mod — golang.org/x/text 0.35.0 (golang.org/x/text/unicode/norm): GO-2026-5970 — golang.org/x/text is not a DIRECT requirement of this module: go.mod records it as `// indirect`, pulled in transitively, so raise it in place (run `go get golang.org/x/text@v0.39.0`, which updates the require line go.mod already holds for it).
  • Medium CVE: GO-2026-4337 go.mod — stdlib 1.25.6 (crypto/tls): GO-2026-4337 — fixed in Go 1.25.7; pin a build toolchain at or above it (go.mod `toolchain` directive, or your CI's Go version) — the `go` directive is a minimum language version, not the compiler that builds your binaries. This one row stands for the 23 advisories this scan raises against stdlib 1.25.6: GO-2026-4337, GO-2026-4601, GO-2026-4602, GO-2026-4603, GO-2026-4864, GO-2026-4865, GO-2026-4869, GO-2026-4870, GO-2026-4918, GO-2026-4946, GO-2026-4947, GO-2026-4970, GO-2026-4971, GO-2026-4976, GO-2026-4977, GO-2026-4980, GO-2026-4981, GO-2026-4982, GO-2026-4986, GO-2026-5037, GO-2026-5038, GO-2026-5039, GO-2026-5856.
D4 · Code Duplication · Duplicated block (18 lines × 2) · ×4
  • Duplicated block (18 lines × 2) codec/bson/event.go:86 — codec/bson/event.go:86-103 | codec/json/event.go:84-101 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice.
  • Duplicated block (18 lines × 2) eventbus/gcp/eventbus.go:65 — eventbus/gcp/eventbus.go:65-82 | eventbus/nats/eventbus.go:60-77 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/gcp/eventbus.go:65` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (18 lines × 2) eventstore/mongodb_v2/eventstore.go:474 — eventstore/mongodb_v2/eventstore.go:474-491 | eventstore/mongodb_v2/eventstore.go:563-580 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/mongodb_v2/eventstore.go:474` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
  • Duplicated block (18 lines × 2) outbox/memory/outbox.go:183 — outbox/memory/outbox.go:183-200 | outbox/mongodb/outbox.go:263-280 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `outbox/memory/outbox.go:183` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (14 lines × 2) · ×4
  • Duplicated block (14 lines × 2) codec/acceptance_testing.go:62 — codec/acceptance_testing.go:62-75 | codec/acceptance_testing.go:147-160 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `codec/acceptance_testing.go:62` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (14 lines × 2) eventbus/nats/eventbus.go:58 — eventbus/nats/eventbus.go:58-71 | eventbus/redis/eventbus.go:57-70 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/nats/eventbus.go:58` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (14 lines × 2) eventstore/memory/eventstore.go:259 — eventstore/memory/eventstore.go:259-272 | outbox/memory/outbox.go:302-315 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/memory/eventstore.go:259` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
  • Duplicated block (14 lines × 2) repo/mongodb/repo.go:239 — repo/mongodb/repo.go:239-252 | repo/mongodb/repo.go:273-286 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `repo/mongodb/repo.go:239` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (10 lines × 2) · ×3
  • Duplicated block (10 lines × 2) eventbus/acceptance_testing.go:39 — eventbus/acceptance_testing.go:39-48 | outbox/acceptance_testing.go:32-41 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/acceptance_testing.go:39` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (10 lines × 2) eventstore/acceptance_testing.go:80 — eventstore/acceptance_testing.go:80-91 | eventstore/acceptance_testing.go:93-102 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/acceptance_testing.go:80` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (10 lines × 2) eventstore/mongodb/eventstore.go:92 — eventstore/mongodb/eventstore.go:92-101 | outbox/mongodb/outbox.go:103-112 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/mongodb/eventstore.go:92` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
D29 · Static Analysis (SAST) · Medium · ×2
  • Medium: math-random-used eventbus/acceptance_testing.go:21 — `math/rand` is not cryptographically secure — its stream is reproducible from its seed and predictable from observed output — so any value that must be unguessable (a token, nonce, key, salt, session id, password-reset or MFA code) has to come from `crypto/rand`. Where non-cryptographic randomness IS the intent — jitter, backoff, sampling, load spreading, simulation, test fixtures, or output that is deliberately reproducible from a seed — `math/rand` is the correct choice and no change is needed; a package that deliberately offers both should keep its security-sensitive callers on the `crypto/rand` path rather than drop the other one. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
  • Medium: math-random-used outbox/performance_testing.go:20 — `math/rand` is not cryptographically secure — its stream is reproducible from its seed and predictable from observed output — so any value that must be unguessable (a token, nonce, key, salt, session id, password-reset or MFA code) has to come from `crypto/rand`. Where non-cryptographic randomness IS the intent — jitter, backoff, sampling, load spreading, simulation, test fixtures, or output that is deliberately reproducible from a seed — `math/rand` is the correct choice and no change is needed; a package that deliberately offers both should keep its security-sensitive callers on the `crypto/rand` path rather than drop the other one. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
D4 · Code Duplication · Duplicated block (13 lines × 2) · ×2
  • Duplicated block (13 lines × 2) aggregate.go:101 — aggregate.go:101-113 | eventstore.go:103-115 — the copies sit in sibling files of one directory: extract the block into a single shared function in that directory and call it from each site, so a change lands once. Read the line range as the matched WINDOW rather than a finished unit: at `aggregate.go:101` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (13 lines × 2) eventstore/acceptance_testing.go:178 — eventstore/acceptance_testing.go:178-190 | eventstore/maintenance_testing.go:94-106 — the copies sit in sibling files of one directory: extract the block into a single shared function in that directory and call it from each site, so a change lands once. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/acceptance_testing.go:178` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
D4 · Code Duplication · Duplicated block (12 lines × 2) · ×2
  • Duplicated block (12 lines × 2) outbox/acceptance_testing.go:132 — outbox/acceptance_testing.go:132-143 | outbox/acceptance_testing.go:150-161 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `outbox/acceptance_testing.go:132` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (12 lines × 2) eventstore/maintenance_testing.go:130 — eventstore/maintenance_testing.go:130-141 | eventstore/maintenance_testing.go:148-159 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/maintenance_testing.go:130` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (11 lines × 2) · ×2
  • Duplicated block (11 lines × 2) codec/bson/event.go:37 — codec/bson/event.go:37-48 | codec/json/event.go:36-46 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `codec/bson/event.go:37` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
  • Duplicated block (11 lines × 2) eventbus/acceptance_testing.go:204 — eventbus/acceptance_testing.go:204-214 | eventbus/acceptance_testing.go:219-229 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/acceptance_testing.go:204` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (9 lines × 3) · ×2
  • Duplicated block (9 lines × 3) eventbus/acceptance_testing.go:74 — eventbus/acceptance_testing.go:74-83 | outbox/acceptance_testing.go:65-74 | outbox/acceptance_testing.go:122-130 — there are 3 copies across 2 file(s) — more copies than files, so at least one file holds the block twice. Extract it once into a single shared function every call site can reach and call it from all 3 sites; resolving a subset leaves the remainder to drift apart. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/acceptance_testing.go:74` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
  • Duplicated block (9 lines × 3) eventbus/gcp/eventbus.go:309 — eventbus/gcp/eventbus.go:309-317 | eventbus/nats/eventbus.go:275-283 | eventbus/redis/eventbus.go:281-289 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere all 3 call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made 3 times. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/gcp/eventbus.go:309` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (9 lines × 2) · ×2
  • Duplicated block (9 lines × 2) codec/bson/command.go:56 — codec/bson/command.go:56-64 | codec/json/command.go:53-61 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `codec/bson/command.go:56` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
  • Duplicated block (9 lines × 2) tracing/eventstore.go:48 — tracing/eventstore.go:48-56 | tracing/eventstore.go:70-78 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `tracing/eventstore.go:48` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (8 lines × 2) · ×2
  • Duplicated block (8 lines × 2) codec/bson/event.go:67 — codec/bson/event.go:67-74 | codec/json/event.go:65-72 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `codec/bson/event.go:67` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
  • Duplicated block (8 lines × 2) eventstore/maintenance_testing.go:108 — eventstore/maintenance_testing.go:108-115 | eventstore/maintenance_testing.go:116-124 — 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.
D4 · Code Duplication · Duplicated block (7 lines × 2) · ×2
  • Duplicated block (7 lines × 2) eventbus/acceptance_testing.go:253 — eventbus/acceptance_testing.go:253-259 | outbox/acceptance_testing.go:179-186 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/acceptance_testing.go:253` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
  • Duplicated block (7 lines × 2) eventbus/gcp/eventbus.go:291 — eventbus/gcp/eventbus.go:291-297 | eventbus/nats/eventbus.go:258-264 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/gcp/eventbus.go:291` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D1 · Cyclomatic Complexity · eventbus.AcceptanceTest (cyclomatic 47) · ×1
  • eventbus.AcceptanceTest (cyclomatic 47) eventbus/acceptance_testing.go:66 — eventbus.AcceptanceTest has cyclomatic complexity 47 (threshold 15). To reduce it, split the body: these branches sit side by side rather than nested inside one another, so extracting each one on its own would leave a function per branch. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D1 · Cyclomatic Complexity · eventstore.AcceptanceTest (cyclomatic 27) · ×1
  • eventstore.AcceptanceTest (cyclomatic 27) eventstore/acceptance_testing.go:39 — eventstore.AcceptanceTest has cyclomatic complexity 27 (threshold 15). To reduce it, split the body: these branches sit side by side rather than nested inside one another, so extracting each one on its own would leave a function per branch. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D1 · Cyclomatic Complexity · Aggregate.HandleCommand (cyclomatic 27) · ×1
  • Aggregate.HandleCommand (cyclomatic 27) examples/todomvc/backend/domains/todo/aggregate.go:53 — Aggregate.HandleCommand has cyclomatic complexity 27 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
D1 · Cyclomatic Complexity · repo.AcceptanceTest (cyclomatic 27) · ×1
  • repo.AcceptanceTest (cyclomatic 27) repo/acceptance_testing.go:37 — repo.AcceptanceTest has cyclomatic complexity 27 (threshold 15). To reduce it, split the body: these branches sit side by side rather than nested inside one another, so extracting each one on its own would leave a function per branch. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D1 · Cyclomatic Complexity · EventHandler.HandleEvent (cyclomatic 25) · ×1
  • EventHandler.HandleEvent (cyclomatic 25) eventhandler/projector/eventhandler.go:177 — EventHandler.HandleEvent has cyclomatic complexity 25 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
D1 · Cyclomatic Complexity · outbox.AcceptanceTest (cyclomatic 25) · ×1
  • outbox.AcceptanceTest (cyclomatic 25) outbox/acceptance_testing.go:58 — outbox.AcceptanceTest has cyclomatic complexity 25 (threshold 15). To reduce it, split the body: these branches sit side by side rather than nested inside one another, so extracting each one on its own would leave a function per branch. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D1 · Cyclomatic Complexity · main.main (cyclomatic 23) · ×1
  • main.main (cyclomatic 23) examples/todomvc/backend/main.go:42 — main.main has cyclomatic complexity 23 (threshold 15). Of this number, 20 points are the body's own statements and 3 belong to 3 function literals inside it that branch. To reduce it, split the body: these branches sit side by side rather than nested inside one another, so extracting each one on its own would leave a function per branch. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D1 · Cyclomatic Complexity · EventStore.Save (cyclomatic 21) · ×1
  • EventStore.Save (cyclomatic 21) eventstore/mongodb/eventstore.go:158 — EventStore.Save has cyclomatic complexity 21 (threshold 15). Of this number, 14 points are the body's own statements and 7 belong to 2 function literals inside it that branch. To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
D1 · Cyclomatic Complexity · eventstore.MaintenanceAcceptanceTest (cyclomatic 19) · ×1
  • eventstore.MaintenanceAcceptanceTest (cyclomatic 19) eventstore/maintenance_testing.go:36 — eventstore.MaintenanceAcceptanceTest has cyclomatic complexity 19 (threshold 15). To reduce it, split the body: these branches sit side by side rather than nested inside one another, so extracting each one on its own would leave a function per branch. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D1 · Cyclomatic Complexity · EventStore.saveInTX (cyclomatic 18) · ×1
  • EventStore.saveInTX (cyclomatic 18) eventstore/mongodb_v2/eventstore.go:375 — EventStore.saveInTX has cyclomatic complexity 18 (threshold 15). Most of this is not in the body itself: 3 of the 18 points are its own statements and the rest belongs to one function literal inside it that branches (line 393). The decisions are inside the literal, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literal's work into a named function or method at the enclosing scope and have the literal call it, then reduce whichever part then reads as the largest.
D1 · Cyclomatic Complexity · InvitationAggregate.HandleCommand (cyclomatic 18) · ×1
  • InvitationAggregate.HandleCommand (cyclomatic 18) examples/guestlist/domains/guestlist/aggregate.go:66 — InvitationAggregate.HandleCommand has cyclomatic complexity 18 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
D1 · Cyclomatic Complexity · Projector.Project (cyclomatic 18) · ×1
  • Projector.Project (cyclomatic 18) examples/todomvc/backend/domains/todo/projector.go:36 — Projector.Project has cyclomatic complexity 18 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
D1 · Cyclomatic Complexity · eventhorizon.CompareEvents (cyclomatic 17) · ×1
  • eventhorizon.CompareEvents (cyclomatic 17) compare.go:55 — eventhorizon.CompareEvents has cyclomatic complexity 17 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
D1 · Cyclomatic Complexity · Aggregate.ApplyEvent (cyclomatic 17) · ×1
  • Aggregate.ApplyEvent (cyclomatic 17) examples/todomvc/backend/domains/todo/aggregate.go:155 — Aggregate.ApplyEvent has cyclomatic complexity 17 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
D1 · Cyclomatic Complexity · bson.newUUIDRegistry (cyclomatic 16) · ×1
  • bson.newUUIDRegistry (cyclomatic 16) codec/bson/uuid.go:47 — bson.newUUIDRegistry has cyclomatic complexity 16 (threshold 15). Most of this is not in the body itself: 1 of the 16 points is its own statement and the rest belongs to 2 function literals inside it that branch (lines 73, 52). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
D15 · Churn × Complexity Hotspots · Hotspot · ×1
  • Hotspot: eventstore/mongodb_v2/eventstore.go eventstore/mongodb_v2/eventstore.go — eventstore/mongodb_v2/eventstore.go changed 2 times in last 90 days, max complexity 18. Frequent change and high complexity in one file compound: schedule the next change to it to include carving out the part being edited, behind tests written first.
D2 · Cognitive Complexity · eventbus.AcceptanceTest (cognitive 51) · ×1
  • eventbus.AcceptanceTest (cognitive 51) eventbus/acceptance_testing.go:66 — eventbus.AcceptanceTest has cognitive complexity 51 (threshold 15). Drivers by points: if/else 40, boolean chains 8, loops 2, match/switch 1 (nesting depth added 6). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition.
D2 · Cognitive Complexity · Aggregate.HandleCommand (cognitive 45) · ×1
  • Aggregate.HandleCommand (cognitive 45) examples/todomvc/backend/domains/todo/aggregate.go:53 — Aggregate.HandleCommand has cognitive complexity 45 (threshold 15). Drivers by points: if/else 33, loops 10, match/switch 2 (nesting depth added 26). 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.
D2 · Cognitive Complexity · EventHandler.HandleEvent (cognitive 38) · ×1
  • EventHandler.HandleEvent (cognitive 38) eventhandler/projector/eventhandler.go:177 — EventHandler.HandleEvent has cognitive complexity 38 (threshold 15). Drivers by points: if/else 31, boolean chains 4, jumps 2, match/switch 1 (nesting depth added 13). 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.
D2 · Cognitive Complexity · EventStore.Save (cognitive 38) · ×1
  • EventStore.Save (cognitive 38) eventstore/mongodb/eventstore.go:158 — EventStore.Save has cognitive complexity 38 (threshold 15). Drivers by points: if/else 33, loops 5 (nesting depth added 16). Of this number, 24 points are the body's own statements and 14 belong to 2 function literals inside it that branch. 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.
D2 · Cognitive Complexity · EventBus.handle (cognitive 32) · ×1
  • EventBus.handle (cognitive 32) eventbus/kafka/eventbus.go:354 — EventBus.handle has cognitive complexity 32 (threshold 15). Drivers by points: match/switch 17, if/else 12, loops 3 (nesting depth added 19). Of this number, 31 points are the body's own statements and 1 belongs to one function literal inside it that branches. 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.
D2 · Cognitive Complexity · eventstore.AcceptanceTest (cognitive 30) · ×1
  • eventstore.AcceptanceTest (cognitive 30) eventstore/acceptance_testing.go:39 — eventstore.AcceptanceTest has cognitive complexity 30 (threshold 15). Drivers by points: if/else 23, boolean chains 5, loops 2 (nesting depth added 4). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition.
D2 · Cognitive Complexity · EventStore.saveInTX (cognitive 27) · ×1
  • EventStore.saveInTX (cognitive 27) eventstore/mongodb_v2/eventstore.go:375 — EventStore.saveInTX has cognitive complexity 27 (threshold 15). Drivers by points: if/else 24, loops 3 (nesting depth added 9). Most of this is not in the body itself: 2 of the 27 points are its own statements and the rest belongs to one function literal inside it that branches (line 393). The decisions are inside the literal, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literal's work into a named function or method at the enclosing scope and have the literal call it, then reduce whichever part then reads as the largest.
D2 · Cognitive Complexity · Outbox.processOutboxEvent (cognitive 26) · ×1
  • Outbox.processOutboxEvent (cognitive 26) outbox/memory/outbox.go:239 — Outbox.processOutboxEvent has cognitive complexity 26 (threshold 15). Drivers by points: if/else 15, loops 6, match/switch 3, boolean chains 2 (nesting depth added 11). 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.
D2 · Cognitive Complexity · repo.AcceptanceTest (cognitive 26) · ×1
  • repo.AcceptanceTest (cognitive 26) repo/acceptance_testing.go:37 — repo.AcceptanceTest has cognitive complexity 26 (threshold 15). Drivers by points: if/else 24, boolean chains 2. To reduce it, split the body: this score is breadth rather than depth — many checks laid out side by side rather than nested inside one another, so inverting conditions into early returns has nothing left to flatten. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D2 · Cognitive Complexity · eventhorizon.CompareEvents (cognitive 25) · ×1
  • eventhorizon.CompareEvents (cognitive 25) compare.go:55 — eventhorizon.CompareEvents has cognitive complexity 25 (threshold 15). Drivers by points: if/else 20, loops 5 (nesting depth added 9). 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.
D2 · Cognitive Complexity · Projector.Project (cognitive 25) · ×1
  • Projector.Project (cognitive 25) examples/todomvc/backend/domains/todo/projector.go:36 — Projector.Project has cognitive complexity 25 (threshold 15). Drivers by points: if/else 18, loops 6, match/switch 1 (nesting depth added 13). 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.
D2 · Cognitive Complexity · Outbox.outbox (cognitive 25) · ×1
  • Outbox.outbox (cognitive 25) namespace/outbox.go:182 — Outbox.outbox has cognitive complexity 25 (threshold 15). Drivers by points: if/else 10, match/switch 9, loops 6 (nesting depth added 17). Of this number, 13 points are the body's own statements and 12 belong to one function literal inside it that branches. 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.
D2 · Cognitive Complexity · outbox.AcceptanceTest (cognitive 25) · ×1
  • outbox.AcceptanceTest (cognitive 25) outbox/acceptance_testing.go:58 — outbox.AcceptanceTest has cognitive complexity 25 (threshold 15). Drivers by points: if/else 22, boolean chains 2, match/switch 1 (nesting depth added 2). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition.
D2 · Cognitive Complexity · Aggregate.ApplyEvent (cognitive 24) · ×1
  • Aggregate.ApplyEvent (cognitive 24) examples/todomvc/backend/domains/todo/aggregate.go:155 — Aggregate.ApplyEvent has cognitive complexity 24 (threshold 15). Drivers by points: if/else 17, loops 6, match/switch 1 (nesting depth added 13). 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.
D2 · Cognitive Complexity · InvitationAggregate.HandleCommand (cognitive 23) · ×1
  • InvitationAggregate.HandleCommand (cognitive 23) examples/guestlist/domains/guestlist/aggregate.go:66 — InvitationAggregate.HandleCommand has cognitive complexity 23 (threshold 15). Drivers by points: if/else 20, boolean chains 2, match/switch 1 (nesting depth added 10). 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.
D2 · Cognitive Complexity · main.main (cognitive 22) · ×1
  • main.main (cognitive 22) examples/todomvc/backend/main.go:42 — main.main has cognitive complexity 22 (threshold 15). Drivers by points: if/else 20, loops 2. Of this number, 19 points are the body's own statements and 3 belong to 3 function literals inside it that branch. To reduce it, split the body: this score is breadth rather than depth — many checks laid out side by side rather than nested inside one another, so inverting conditions into early returns has nothing left to flatten. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
D2 · Cognitive Complexity · EventStore.Save (cognitive 21) · ×1
  • EventStore.Save (cognitive 21) eventstore/mongodb_v2/eventstore.go:285 — EventStore.Save has cognitive complexity 21 (threshold 15). Drivers by points: if/else 17, loops 3, match/switch 1 (nesting depth added 9). 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.
D2 · Cognitive Complexity · Outbox.processOutboxEvent (cognitive 21) · ×1
  • Outbox.processOutboxEvent (cognitive 21) outbox/mongodb/outbox.go:386 — Outbox.processOutboxEvent has cognitive complexity 21 (threshold 15). Drivers by points: if/else 17, match/switch 3, loops 1 (nesting depth added 7). 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.
D2 · Cognitive Complexity · EventBus.handle (cognitive 20) · ×1
  • EventBus.handle (cognitive 20) eventbus/local/eventbus.go:149 — EventBus.handle has cognitive complexity 20 (threshold 15). Drivers by points: match/switch 10, if/else 9, loops 1 (nesting depth added 13). 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.
D2 · Cognitive Complexity · eventstore.MaintenanceAcceptanceTest (cognitive 20) · ×1
  • eventstore.MaintenanceAcceptanceTest (cognitive 20) eventstore/maintenance_testing.go:36 — eventstore.MaintenanceAcceptanceTest has cognitive complexity 20 (threshold 15). Drivers by points: if/else 18, boolean chains 1, loops 1 (nesting depth added 2). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition.
D2 · Cognitive Complexity · EventHandler.run (cognitive 19) · ×1
  • EventHandler.run (cognitive 19) eventhandler/waiter/eventhandler.go:107 — EventHandler.run has cognitive complexity 19 (threshold 15). Drivers by points: if/else 7, match/switch 7, loops 4, boolean chains 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.
D2 · Cognitive Complexity · Scheduler.run (cognitive 19) · ×1
  • Scheduler.run (cognitive 19) middleware/commandhandler/scheduler/middleware.go:294 — Scheduler.run has cognitive complexity 19 (threshold 15). Drivers by points: if/else 12, match/switch 5, jumps 1, loops 1 (nesting depth added 12). Most of this is not in the body itself: 4 of the 19 points are its own statements and the rest belongs to one function literal inside it that branches (line 310). The decisions are inside the literal, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literal's work into a named function or method at the enclosing scope and have the literal call it, then reduce whichever part then reads as the largest.
D2 · Cognitive Complexity · EventBus.handler (cognitive 18) · ×1
  • EventBus.handler (cognitive 18) eventbus/redis/eventbus.go:242 — EventBus.handler has cognitive complexity 18 (threshold 15). Drivers by points: match/switch 11, if/else 7 (nesting depth added 7). Most of this is not in the body itself: 0 of the 18 points are its own statements and the rest belongs to one function literal inside it that branches (line 243). The decisions are inside the literal, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literal's work into a named function or method at the enclosing scope and have the literal call it, then reduce whichever part then reads as the largest.
D2 · Cognitive Complexity · eventbus.benchmark (cognitive 17) · ×1
  • eventbus.benchmark (cognitive 17) eventbus/acceptance_testing.go:321 — eventbus.benchmark has cognitive complexity 17 (threshold 15). Drivers by points: if/else 8, loops 6, match/switch 3 (nesting depth added 7). Of this number, 9 points are the body's own statements and 8 belong to one function literal inside it that branches. 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.
D2 · Cognitive Complexity · EventStore.save (cognitive 17) · ×1
  • EventStore.save (cognitive 17) eventstore/memory/eventstore.go:87 — EventStore.save has cognitive complexity 17 (threshold 15). Drivers by points: if/else 16, loops 1 (nesting depth added 7). 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.
D2 · Cognitive Complexity · eventhorizon.isZero (cognitive 16) · ×1
  • eventhorizon.isZero (cognitive 16) command_check.go:88 — eventhorizon.isZero has cognitive complexity 16 (threshold 15). Drivers by points: if/else 10, loops 4, boolean chains 1, match/switch 1 (nesting depth added 8). 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.
D2 · Cognitive Complexity · bson.newUUIDRegistry (cognitive 16) · ×1
  • bson.newUUIDRegistry (cognitive 16) codec/bson/uuid.go:47 — bson.newUUIDRegistry has cognitive complexity 16 (threshold 15). Drivers by points: if/else 12, boolean chains 3, match/switch 1 (nesting depth added 4). Most of this is not in the body itself: 0 of the 16 points are its own statements and the rest belongs to 2 function literals inside it that branch (lines 73, 52). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
D2 · Cognitive Complexity · gcp.NewEventBus (cognitive 16) · ×1
  • gcp.NewEventBus (cognitive 16) eventbus/gcp/eventbus.go:57 — gcp.NewEventBus has cognitive complexity 16 (threshold 15). Drivers by points: if/else 15, loops 1 (nesting depth added 7). 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.
D2 · Cognitive Complexity · outbox.Benchmark (cognitive 16) · ×1
  • outbox.Benchmark (cognitive 16) outbox/performance_testing.go:30 — outbox.Benchmark has cognitive complexity 16 (threshold 15). Drivers by points: if/else 7, loops 6, match/switch 3 (nesting depth added 7). Of this number, 8 points are the body's own statements and 8 belong to one function literal inside it that branches. 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.
D3 · God Classes · FileTooLong · ×1
  • FileTooLong: mongodb_v2/eventstore.go eventstore/mongodb_v2/eventstore.go:0 — FileTooLong — 574 significant lines (blank, comment-only and punctuation-only lines excluded). To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
D31 · IaC & Container Security · Medium IaC · ×1
  • Medium IaC: CKV2_GHA_1 .github/workflows/codeql-analysis.yml:15 — Ensure top-level permissions are not set to write-all
D36 · Supply-chain Provenance & Signing · Unpinned build actions · ×1
  • Unpinned build actions — CI references GitHub Actions by a floating ref (@main / @tag) rather than a pinned commit SHA, weakening build integrity. 21 floating ref(s) across 3 workflow file(s). Each floating ref is itemized at file:line by the SAST (D29) lens.
D38 · OSV Dependency Vulnerabilities · Medium vulnerability · ×1
  • Medium vulnerability: GO-2026-5841 go.mod — github.com/klauspost/compress 1.18.3 (github.com/klauspost/compress/s2): GO-2026-5841 — github.com/klauspost/compress is not a DIRECT requirement of this module: go.mod records it as `// indirect`, pulled in transitively, so raise it in place (run `go get github.com/klauspost/compress@v1.18.7`, which updates the require line go.mod already holds for it).
D4 · Code Duplication · Duplicated block (24 lines × 2) · ×1
  • Duplicated block (24 lines × 2) outbox/memory/graceful.go:43 — outbox/memory/graceful.go:43-66 | outbox/mongodb/graceful.go:43-66 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `outbox/memory/graceful.go:43` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (23 lines × 2) · ×1
  • Duplicated block (23 lines × 2) eventbus/acceptance_testing.go:345 — eventbus/acceptance_testing.go:345-367 | outbox/performance_testing.go:57-79 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/acceptance_testing.go:345` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (19 lines × 3) · ×1
  • Duplicated block (19 lines × 3) eventstore/memory/eventstore.go:111 — eventstore/memory/eventstore.go:111-129 | eventstore/mongodb/eventstore.go:179-197 | eventstore/mongodb_v2/eventstore.go:306-324 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere all 3 call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made 3 times. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/memory/eventstore.go:111` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (19 lines × 2) · ×1
  • Duplicated block (19 lines × 2) eventstore/mongodb/eventstore.go:372 — eventstore/mongodb/eventstore.go:372-390 | eventstore/mongodb_v2/eventstore.go:679-697 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/mongodb/eventstore.go:372` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (18 lines × 5) · ×1
  • Duplicated block (18 lines × 5) eventbus/gcp/eventbus.go:184 — eventbus/gcp/eventbus.go:184-201 | eventbus/kafka/eventbus.go:282-299 | eventbus/local/eventbus.go:103-120 | eventbus/nats/eventbus.go:163-180 | eventbus/redis/eventbus.go:147-165 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere all 5 call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made 5 times. The matched lines also register a scope-exit action (a `defer`-style statement) that runs when the function holding them returns: moved into a called unit it would run when THAT unit returns instead — before the caller uses what it releases — so keep the registration at the call site and extract only the work around it, or have the extracted unit hand the resource back for the caller to register. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
D4 · Code Duplication · Duplicated block (16 lines × 3) · ×1
  • Duplicated block (16 lines × 3) namespace/outbox.go:91 — namespace/outbox.go:91-106 | outbox/memory/outbox.go:73-88 | outbox/mongodb/outbox.go:155-170 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere all 3 call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made 3 times. The matched lines also register a scope-exit action (a `defer`-style statement) that runs when the function holding them returns: moved into a called unit it would run when THAT unit returns instead — before the caller uses what it releases — so keep the registration at the call site and extract only the work around it, or have the extracted unit hand the resource back for the caller to register.
D4 · Code Duplication · Duplicated block (15 lines × 2) · ×1
  • Duplicated block (15 lines × 2) repo/acceptance_testing.go:81 — repo/acceptance_testing.go:81-95 | repo/acceptance_testing.go:133-147 — 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. Read the line range as the matched WINDOW rather than a finished unit: at `repo/acceptance_testing.go:81` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
D4 · Code Duplication · Duplicated block (14 lines × 3) · ×1
  • Duplicated block (14 lines × 3) eventstore/mongodb/eventstore.go:262 — eventstore/mongodb/eventstore.go:262-275 | eventstore/mongodb_v2/eventstore.go:380-393 | eventstore/mongodb_v2/eventstore.go:532-545 — there are 3 copies across 2 file(s) — more copies than files, so at least one file holds the block twice. Extract it once into a single shared function every call site can reach and call it from all 3 sites; resolving a subset leaves the remainder to drift apart. Read the line range as the matched WINDOW rather than a finished unit: at `eventstore/mongodb/eventstore.go:262` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also register a scope-exit action (a `defer`-style statement) that runs when the function holding them returns: moved into a called unit it would run when THAT unit returns instead — before the caller uses what it releases — so keep the registration at the call site and extract only the work around it, or have the extracted unit hand the resource back for the caller to register.
D4 · Code Duplication · Duplicated block (10 lines × 4) · ×1
  • Duplicated block (10 lines × 4) eventstore/mongodb/eventstore.go:59 — eventstore/mongodb/eventstore.go:59-68 | eventstore/mongodb_v2/eventstore.go:99-108 | outbox/mongodb/outbox.go:66-75 | repo/mongodb/repo.go:62-71 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere all 4 call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made 4 times. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
D4 · Code Duplication · Duplicated block (5 lines × 2) · ×1
  • Duplicated block (5 lines × 2) eventbus/acceptance_testing.go:145 — eventbus/acceptance_testing.go:145-149 | outbox/acceptance_testing.go:121-125 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `eventbus/acceptance_testing.go:145` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Recommendation — 9 finding(s)
D11 · Test Reliability · Test reliability not included · ×1
  • Test reliability not included — Test source is present (.go) but the built-in reliability runner does not support this repository's ecosystem, so flakiness couldn't be assessed. Not scored — this is a gap in the analyzer's language coverage, not a finding about this repository.
D16 · Bus Factor · Off-boarding risk · ×1
  • Off-boarding risk: anonymized user #1 — If anonymized user #1 becomes unavailable, 24 significant file(s) lose their only recent owner: mocks/mocks.go, eventbus/acceptance_testing.go, eventbus/kafka/eventbus.go, eventbus/gcp/eventbus.go, eventhandler/projector/eventhandler.go, middleware/commandhandler/scheduler/middleware.go, eventstore/acceptance_testing.go, eventbus/nats/eventbus.go (+16 more). Pair on, review, or document these before any departure.
D29 · Static Analysis (SAST) · Low · ×1
  • Low: websocket-missing-origin-check httputils/eventbus.go:70 — The Origin header in the HTTP WebSocket handshake is used to guarantee that the connection accepted by the WebSocket is from a trusted origin domain. Failure to enforce can lead to Cross Site Request Forgery (CSRF). As per "gorilla/websocket" documentation: "A CheckOrigin function should carefully validate the request origin to prevent cross-site request forgery.". This is a semgrep security-AUDIT rule: it reports that a sensitive construct is present, not that it is exploitable here. Confirm whether this site handles untrusted input or is reachable across a trust boundary — and apply the change where it is; where the construct is required by the platform or protocol it calls into, and carries no untrusted data (a syscall/FFI shim, a build- or debug-gated tool, a fixed local surface), record the review and leave the code as it is.
D34 · Knowledge Freshness · Further orphaned files (smaller) · ×1
  • Further orphaned files (smaller) — 22 of 56 analysed file(s) have no living knowledge left — their last meaningful change has decayed away, so if one breaks, no one currently understands it (counted over production source files of roughly 100 lines or more, excluding tests, vendored, generated and example/demo trees, largest first). None is large enough to earn a read-through of its own, so this row stands in for the per-file rows rather than raising one each — largest first: eventbus/redis/eventbus.go, aggregatestore/events/aggregatestore.go, namespace/outbox.go (and 19 more). 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.
D36 · Supply-chain Provenance & Signing · No build provenance · ×1
  • No build provenance — No SLSA provenance generation or build attestation found in CI — nothing binds a released artifact to the build that produced it, so a consumer cannot tell your artifact from a substituted one. On GitHub Actions, `actions/attest-build-provenance` (or slsa-github-generator) emits one from the job's own OIDC identity; elsewhere, run `cosign attest` over the released artifact from the release pipeline and publish the attestation beside it.
D36 · Supply-chain Provenance & Signing · No artifact signing · ×1
  • No artifact signing — No artifact signing found in CI — sign your released artifacts with whatever your ecosystem ships (a GPG/minisign detached signature — or `cosign sign-blob` — over the release archives, or over a checksum file published alongside them) so consumers can verify what you built.
D36 · Supply-chain Provenance & Signing · No SBOM · ×1
  • No SBOM — No SBOM generation or committed SBOM found — produce one with what your ecosystem ships (`cyclonedx-gomod` over the module graph — or Go's own build info, which already records the module set in the binary, `syft` (or `anchore/sbom-action` in CI) over the source tree or released image). Publish it as a release asset (`*.spdx.json` / `*.cdx.json`) so consumers can see what they are installing.
D37 · Vulnerability-disclosure Policy · Disclosure policy routes reports to a public channel · ×1
  • Disclosure policy routes reports to a public channel — SECURITY.md directs vulnerability reports to a public channel (the issue tracker / pull requests) but names no private reporting contact (a security email, an advisory URL, or GitHub's private vulnerability reporting). A public report discloses the flaw before a fix ships, defeating coordinated disclosure — add a private disclosure channel.
D8 · Code Coverage · Coverage not included · ×1
  • Coverage not included — suite not readable by the collector — Coverage NOT READ here — but this repository measures it: a coverage step in CI (`coverallsapp/github-action`) shows that coverage is collected and tracked in your own CI. The built-in collector has no runner for this ecosystem (.go), 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 (`go test -coverprofile=coverage.out ./...`) into the repo working tree before the scan — a CI step is the usual place, since the artefact is commonly gitignored.
Info — 2 finding(s)
D12 · Dependency Hygiene · Dependency hygiene not measured · ×1
  • Dependency hygiene not measured — dependency manifest found but not parsed for hygiene — This repository's dependency manifest (a Go module (go.mod/go.sum)) was found, but this pass cannot parse it for hygiene, so no package was assessed. Zero packages read is NOT a clean dependency tree, so this is NOT SCORED — a gap in the analyzer, not a verdict about this repository. This row is about dependency HYGIENE — outdated, deprecated or unmaintained direct dependencies; known CVEs in the same dependency graph are a separate question, reported under D38 wherever the manifest is OSV-readable.
D22 · Internal API Consistency · No exposed public API · ×1
  • No exposed public API — No intentionally-exposed types (IsPackable or .Contracts) to evaluate.

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.

DimensionToolVersionCommandFindingsRaw output
D28 · Secrets (history)gitleaksgitleaks detect --no-banner --report-format json --report-path /dev/stdout --exit-code 0 --source .0artifacts/raw/gitleaks-history.json
D29 · Static Analysis (SAST)semgrepsemgrep --config /opt/semgrep-rules/security-audit.yml --config /opt/semgrep-rules/owasp-top-ten.yml --json --quiet --timeout 0 --metrics off .9artifacts/raw/semgrep.json
D30 · Dependency Vulnerabilitiesnone (no readable dependency manifest)none (no readable dependency manifest): not present in this environment0
D31 · IaC & Container Securitytrivytrivy config --format json --quiet .1artifacts/raw/trivy-config.json
D32 · Data Compliance (PII/GDPR)semgrepsemgrep: not applicable — No PII/GDPR-handling patterns detected (p/gdpr ruleset) — no data-compliance surface to assess.0
D33 · JS/npm Dependency Vulnerabilitiestrivytrivy: not applicable — No JS/npm manifest or lockfile found outside build output (package.json, package-lock.json, yarn.lock, pnpm-lock.yaml, bun.lockb); no JS dependencies to scan.0
D38 · OSV Dependency Vulnerabilitiesosv-scannerosv-scanner --format json --recursive .8artifacts/raw/osv-scanner.json
D40 · Network Egress Confinementruntime-hardeningruntime-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.0
D41 · Kernel & Syscall Confinementruntime-hardeningruntime-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.0
D42 · Runtime Threat Enforcementruntime-hardeningruntime-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.0

Run 019fc912-5559-7c74-8408-c7efd78b42ef · every finding is also locatable in findings.md, and the complete scoring record (with exit codes + durations) in sidecar.json.

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.

⬇ Findings, MITRE CWE-tagged .sarif⬇ Health changelog .md