pulsar-client-dotnet — Watchdog Audit

Executive summary

Read through the Production lens — the standard calibration. *Green* means good enough to run in production. The score is absolute and comparable across repos.

fsprojects/pulsar-client-dotnet is sound in substance but carries real gaps (53%). It is not in crisis, but the issues below raise the cost of changing it — friction its consumers ultimately inherit.

It is strongest in Architecture (98%) — the structure is clean and changes stay contained.

The area that most needs attention is Readiness (41%) — releases are harder to depend on — versioning, release notes and dependency hygiene are thin, so consumers can't easily tell what changed or trust an upgrade. Security (58%) is the next concern — exposure to security and compliance incidents is elevated.

Leadership focus, highest impact first: Codify backups + geo-recovery in IaC… (DR & Backup); Nothing pauses a release for a human (Deployment & Rollback); Keep a changelog (e.g. Keep-a-Changelog) recording what shipped… (Release Hygiene).

For scale: Small (~3,866 production lines); rebuilding it from scratch would take roughly ~0.1 person-years (~1 engineer). Approximate, ±~30%.

It builds on a genuinely strong Architecture foundation (98%); the priorities above are the highest-leverage way to bring the rest up to that level.

Code Health 66% Adequate · gated by X5 Architecture 98% ★ Exemplary Maturity 60% Adequate · gated by M2 Readiness 41% Weak · gated by P3, P5 Security 58% Adequate · gated by D36

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.

Readiness 41% · 47% weightSecurity 58% · 26% weightMaturity 60% · 14% weightCode Health 66% · 8% weightArchitecture 98% · 4% weight

Raise Readiness 41 → 70 (the Healthy floor) ⇒ headline 53 → ~63.

Code composition — where the lines go

Business logic 2%Plumbing 27%Tests 72%

New since the last scan (2+)

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

D35 · Change coupling: ClientCnx.fs ↔ TransactionMetaStoreHandler.fs src/Pulsar.Client/Internal/ClientCnx.fs
D35 · Change coupling: IProducer.fs ↔ MultiTopicsConsumerImpl.fs src/Pulsar.Client/Api/IProducer.fs

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 — €3,500–€17,000

Cost to rebuild	€3,500–€17,000 (0.1 person-years (59–183 h), ~1 engineer)
Domain complexity	Low — harder problems cost more per line
Quality factor	0.7× (at 53% quality) — the last 20% of quality is most of the work
Size & shape	Small · 63% boilerplate · 30% straight-line · 6% branching logic

This codebase represents roughly ~0.1 person-years of build effort (about ~€10,000 to rebuild). Its weakest lens is Readiness at 41% — the part of that asset most exposed by the findings below.

How we model this: boilerplate at a scaffolding rate + logic × domain Low (×0.9) — library/CLI × a 0.7× quality factor, at €60–95/h; indicative, ±~30% · size measured directly from source (the solution did not build in-analyzer). 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.

Codify backups + geo-recovery in IaC (snapshot/replication/geo-redundant) to back the DR plan.

+12.3 pts · Medium effort · DR & Backup

Nothing pauses a release for a human: publish as a draft release (or gate the release job on a protected tag/manual dispatch) so a bad build can be stopped before users can download it.

+11.6 pts · Medium effort · Deployment & Rollback

Keep a changelog (e.g. Keep-a-Changelog) recording what shipped in each release.

+11.6 pts · Medium effort · Release Hygiene

Diagnosis — what's actually going on

Value concentrated against a weak lens · High · Value at risk

This is a Small asset (~0.1 person-years to rebuild), and its weakest lens is Readiness at 41%. The operational and business risk on an asset this size concentrates there — that's where remediation buys the most protection.

Evidence: valuation: Small, ~0.1 person-years rebuild (3,866 LoC) · weakest lens: Readiness 41%

→ Direct remediation budget at Readiness 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: Codify backups + geo-recovery in IaC (snapshot/replication/geo-redundant) to back the DR plan. The rest can wait behind it.

Evidence: priority ranking: top of 5 ranked by impact/effort

→ Codify backups + geo-recovery in IaC (snapshot/replication/geo-redundant) to back the DR plan.

At a glance — Code Health · 66% · Adequate · gated by X5

The Good

D4 · .NET / C# Code Duplication 9.7 D17 · .NET / C# Explicit Debt 9.7 D39 · .NET / C# IL Efficiency 10.0 GD1 · Repo Unfinished & placeholder code 10.0 IC1 · Repo Incompleteness & stubs 10.0 X1 · Repo Async correctness 10.0 X3 · Repo Exception handling 10.0 X4 · Repo Structured logging 10.0

The Ugly

X2 · Repo Cancellation propagation 4.5 X5 · Repo Nullable reference types 2.0

At a glance — Architecture · 98% · Exemplary

The Good

D5 · .NET / C# Coupling 10.0 D26 · .NET / C# Project Cohesion 10.0 D35 · .NET / C# Change Coupling 8.7 AX10 · Repo Code composition 10.0 AX3 · Repo Project dependency cycles 10.0 AX4 · Repo Dependency direction 10.0 AX5 · Repo Architecture & structure 10.0

At a glance — Maturity · 60% · Adequate · gated by M2

The Good

D16 · .NET / C# Bus Factor 9.4 D21 · .NET / C# Naming Consistency 10.0 D34 · .NET / C# Knowledge Freshness 9.2 M1 · Repo Documentation (README) 7.3 M3 · Repo Folder & project structure 8.0 M4 · Repo Documentation accuracy 8.0

The Bad

D19 · .NET / C# Documentation Quality 6.0 D24 · .NET / C# Comment Value 5.0

The Ugly

M2 · Repo Architecture documentation 2.0

At a glance — Readiness · 41% · Weak · gated by P3, P5

The Good

D12 · .NET / C# Dependency Hygiene 8.8 D13 · .NET / C# Secret Scanning 10.0 D14 · .NET / C# License Compliance 10.0 P1 · Repo CI/CD gates 10.0

The Bad

P4 · Repo Deployment & Rollback 5.0 P6 · Repo Release Hygiene 5.0

The Ugly

P3 · Repo Security & performance tooling 0.0 P5 · Repo DR & Backup 3.0

At a glance — Security · 58% · Adequate · gated by D36

The Good

D28 · .NET / C# Secrets (history) 9.0 D30 · .NET / C# Dependency Vulnerabilities 9.4

The Bad

D29 · .NET / C# Static Analysis (SAST) 5.0

The Ugly

D36 · .NET / C# Supply-chain Provenance & Signing 0.0

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 category	Findings	Severity
A03:2021 — Injection	4	High / Critical
A02:2021 — Cryptographic Failures	2	High / Critical
A06:2021 — Vulnerable & Outdated Components	1	High / Critical

Roadmap

First, codify backups and geo-recovery in your infrastructure code to ensure your disaster recovery plan is actionable and resilient. Next, implement draft releases or approval gates to prevent bad builds from reaching users, while maintaining a clear changelog to track every release. Additionally, document significant architectural decisions in a centralized location to preserve context and consequences. Finally, improve async method signatures to include cancellation tokens, ensuring work stops promptly when needed.

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

Do this	Helps	Effort	Dimension
Codify backups + geo-recovery in IaC (snapshot/replication/geo-redundant) to back the DR plan.	+12.3 pts	Medium	DR & Backup
Nothing pauses a release for a human: publish as a draft release (or gate the release job on a protected tag/manual dispatch) so a bad build can be stopped before users can download it.	+11.6 pts	Medium	Deployment & Rollback
Keep a changelog (e.g. Keep-a-Changelog) recording what shipped in each release.	+11.6 pts	Medium	Release Hygiene
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).	+3.5 pts	Medium	Architecture documentation
Resolve the 2 redundant comment finding(s) in Comment Value — start with Crc32c.cs, DynamicJsonConverter.cs.	+1.7 pts	Low	Comment Value
Resolve the 4 High finding(s) in Static Analysis (SAST) — start with dotnetcore-ubuntu.yml (2), dotnetcore-windows.yml (2).	+1.6 pts	Low	Static Analysis (SAST)
Thread a CancellationToken through async methods so work stops promptly on cancellation.	+2.6 pts	Medium	Cancellation propagation
Enable <Nullable>enable</Nullable> across all projects and resolve warnings rather than suppressing with `!`.	+2.6 pts	Medium	Nullable reference types

File quality

Per-file score 0–10 — a quality signature. Of 21 files carrying findings, judged against the Production bar: 0% slop · 29% mixed · 71% near-clean.

File	Score	Band	Worst signal
.github/workflows/dotnetcore-ubuntu.yml	5.8	Mixed	Static Analysis (SAST): High: github-actions-mutable-action-tag
.github/workflows/dotnetcore-windows.yml	5.8	Mixed	Static Analysis (SAST): High: github-actions-mutable-action-tag
src/Pulsar.Client.Proto/DynamicJsonConverter.cs	6.8	Mixed	Explicit Debt: TodoComment
examples/Oauth2Files/credentials_file.json	7.2	Mixed	Secrets (history): Secret: generic-api-key
src/Pulsar.Client/Api/IProducer.fs	7.8	Mixed	Change Coupling: Change coupling: IProducer.fs ↔ ConsumerImpl.fs
src/Pulsar.Client/Internal/ClientCnx.fs	7.8	Mixed	Change Coupling: Change coupling: ClientCnx.fs ↔ TransactionMetaStoreHandler.fs
examples/CsharpExamples/Program.cs	8.2	Near-clean	Explicit Debt: CommentedOutCode
examples/CsharpExamples/RealWorld.cs	8.2	Near-clean	Explicit Debt: BarePragmaDisable
examples/CsharpExamples/CustomProps.cs	8.5	Near-clean	Code Duplication: Duplicated block (14 lines × 2)
examples/CsharpExamples/Simple.cs	8.5	Near-clean	Code Duplication: Duplicated block (13 lines × 2)
examples/CsharpExamples/Oauth2.cs	8.5	Near-clean	Code Duplication: Duplicated block (8 lines × 3)
examples/CsharpExamples/CsharpExamples.csproj	8.5	Near-clean	Documentation Quality: Low XML-doc coverage: CsharpExamples
src/Pulsar.Client.Proto/Pulsar.Client.Proto.csproj	8.5	Near-clean	Documentation Quality: Low XML-doc coverage: Pulsar.Client.Proto
src/Pulsar.Client/Api/DeadLetters.fs	8.5	Near-clean	Change Coupling: Change coupling: DeadLetters.fs ↔ ConsumerImpl.fs
src/Pulsar.Client/Api/ConsumerBuilder.fs	8.5	Near-clean	Change Coupling: Change coupling: ConsumerBuilder.fs ↔ ConsumerImpl.fs
src/Pulsar.Client/Api/ProducerBuilder.fs	8.5	Near-clean	Change Coupling: Change coupling: ProducerBuilder.fs ↔ ProducerImpl.fs
src/Pulsar.Client/Internal/ProducerImpl.fs	8.5	Near-clean	Change Coupling: Change coupling: ProducerImpl.fs ↔ TransactionMetaStoreHandler.fs
src/Pulsar.Client/Internal/ConsumerImpl.fs	8.5	Near-clean	Change Coupling: Change coupling: ConsumerImpl.fs ↔ PartitionedProducerImpl.fs
src/Pulsar.Client/Internal/MultiTopicsConsumerImpl.fs	8.5	Near-clean	Change Coupling: Change coupling: MultiTopicsConsumerImpl.fs ↔ PartitionedProducerImpl.fs
README.md	9.5	Near-clean	Documentation Quality: The README links to an external examples folder (https://github.com/fsharplang-ru/pulsar-client-dotnet/tree/develop/examples) but does not mention how to build or run the examples locally.

Methodology & how to trust this report

Watchdog is a deep, periodic assessment — run each sprint, monthly, or quarterly, taking the time to go wider and deeper than a quick check and surfacing in one coherent report what you'd otherwise piece together from a dozen separate tools. It scores deterministically: the same commit yields the same score, every run. 35 of 38 evaluated dimensions are computed purely by tools and static analysis (confidence 1.0); 3 documentation/naming judgement(s) are LLM-assisted and labelled advisory. Overall confidence is 0.6 — 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 — 38 dimensions across the health lenses

D4D5D12D13D14D16D17D19D21D24D26D28D29D30D34D35D36D39AX10AX3AX4AX5GD1IC1M1M2M3M4P1P3P4P5P6X1X2X3X4X5

Each chip is a dimension scored from real signals across architecture, testing, dependencies, security & compliance, documentation, git-history and code quality — in one coherent pass. A surface report typically covers a handful.

How to trust any code-health report — three questions

Can you open the finding? Real findings cite a repo-relative file and line you can open at the cited line — never an absolute scratch path. Here, 27 of 66 do; the remainder are repo-wide signals — a dimension-level measurement, not a single line. (Every path in this report is repo-relative by construction: paths are normalized at the producer and the report is rejected if any rooted path leaks through.)
Is there a tool behind the number? Every score below names the method that produced it — Roslyn, git, a scanner, or (for a handful of documentation/naming dimensions) an LLM labelled sampled · advisory — not a narrative.
Does re-running give the same result? Run it again on the same commit and the score — and this report, byte for byte — is identical. A report whose numbers move between runs is describing the run, not the code.

This report answers yes to all three. That's the bar to hold any assessment to.

Tools & methods

The actual versions used this run (captured at analysis time) — re-run on the same commit for the identical score.

Method	Backs	Version	Evaluator
Roslyn static analysis	Complexity, cohesion, coupling, dead code, API surface, layering	5.3.0	✓ deterministic
Native secret scanner	Hardcoded secrets / credentials	1.0.0	✓ deterministic
jscpd	Code duplication	—	✓ deterministic
Coverage (coverlet / dotnet-coverage)	Line & branch coverage	10.0.302	✓ deterministic
NuGet / dotnet	Outdated, vulnerable & deprecated dependencies	10.0.302	✓ deterministic
git / LibGit2Sharp	Churn hotspots, knowledge concentration, history	2.43.0 · 0.31.0	✓ deterministic
gitleaks · semgrep · trivy	Secrets in history, SAST, CVEs, IaC & container, PII / GDPR	1.86.0 · 0.69.3	✓ deterministic
LLM (sampled · advisory)	Documentation quality, ADR conformance, naming — sampled over a bounded sample; advisory, never a deterministic measurement	Local LLM	◐ LLM · sampled · advisory

Every finding is locatable in findings.md. Run 019fd541-55e9-7fb2-96d9-8c2750960df2.

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.

Solution could not be loaded — run is Degraded — The C# workspace did not read this repository's production source, so every compiler-dependent dimension ran on estimated input. Treat the grade as indicative only; diagnostics.md records the exact cause.

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.

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.
D5 Coupling: Coupling is measured between projects/assemblies — runtime coupling through DI, reflection, messaging or shared databases is invisible to a static reference graph.
D12 Dependency Hygiene: Dependency health reads manifests and lockfiles — a vulnerability in a vendored/copied dependency, or risk from how a dependency is actually used, is outside this view.
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").
D14 License Compliance: License compatibility is checked against declared package metadata and a policy — mislabelled or missing license metadata, and obligations that depend on how you distribute, are not resolved here.
D16 Bus Factor: Bus-factor is a time-decayed model of commit attribution (who has recently, repeatedly worked a file), not comprehension — pairing, review and reading-without-committing spread knowledge it can't see; bot commits and shared accounts still distort it.
D17 Explicit Debt: Acknowledged-debt signals (TODO/FIXME, suppressions, dead code) are textual — undocumented debt that nobody marked, and debt that lives in design rather than annotations, is invisible. Committed machine-written code (scaffolded migrations, designer/codegen output, generated stubs) is excluded — it is never the team's dead code to delete.
D19 Documentation Quality: Documentation quality is judged by an LLM over a bounded sample of docs — it reads what is written, not whether the docs match the running system, and it is advisory, not a measurement.
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.
D24 Comment Value: Comment value (WHY vs WHAT) is an LLM judgement over a bounded sample — it is advisory and cannot weigh a comment against the precise code change it was written to explain.
D26 Project Cohesion: Project focus is sized from members/namespaces per project — a project that is broad by deliberate design reads the same as one that has sprawled.
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").
D30 Dependency Vulnerabilities: CVE matching depends on accurate package/version metadata and the advisory database — a vulnerability with no published advisory, or in code not declared as a dependency, is not seen.
D34 Knowledge Freshness: Freshness is decayed commit RECENCY, not comprehension — code read often but rarely committed reads as orphaned, and stable code that genuinely needs no changes is penalised the same as forgotten code; bot/squash commits distort it like the bus factor.
D35 Change Coupling: Change coupling is co-change in COMMITS — files split across separate commits, or coupled only through a shared config/build step, read as uncoupled, and a sweeping commit (rename/format) is excluded so it doesn't couple everything. It shows that files change together, not WHY: a high coupling can be a healthy cohesive pair as readily as a hidden leak.
AX10 Code composition: Role is inferred from namespace/folder convention, not semantics — a domain concept living in a folder named "Services" reads as application, and the split is lines-of-code, not business value. The business-logic-share score is a SOFT, FLOORED signal: it contributes to the Architecture lens but is floored at the Critical gate, so an infrastructure-heavy design (a gateway, an ETL, a driver) is legitimately low without being nuked to zero.
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 (4): D19, D21, D24, 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

D4 · Code Duplication9.7 / 10Exemplary✓ 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: Documented → Verified → Prevented · effective 9.7 / 10 · rule-coverage 100% · ceiling Verified

3 duplicated block group(s) detected.

Duplicated block (14 lines × 2)examples/CsharpExamples/CustomProps.cs:12

Duplicated block (13 lines × 2)examples/CsharpExamples/Simple.cs:17

Duplicated block (8 lines × 3)examples/CsharpExamples/Oauth2.cs:50

✓ On the Gold path — maintain.

Detailed fixes: d4_recommendation.md · top locations in Appendix A, every location in findings.md.

Do you agree with this assessment?

D5 · Coupling10.0 / 10Exemplary✓ Tool-verified

What it measures: Whether volatile projects sit underneath others that depend on them (so their churn ripples upward), and whether project dependencies form cycles. A widely-depended-on but stable shared/kernel project is healthy, not penalised.

Method: Dependency cycles via elementary-DFS over real .csproj references, plus Martin instability (afferent/efferent) per project. Exhaustive over the reference graph, deterministic.

Coverage: Exhaustive · type-level: afferent/efferent coupling + cycles computed over every production type — the population is all types, not a name convention.

Maturity: Documented → Verified → Prevented · effective 10.0 / 10 · rule-coverage 100% · ceiling Prevented

4 projects, 0 dependency cycle(s), 0 unstable depended-on project(s).

✓ On the Gold path — maintain.

Detailed fixes: d5_recommendation.md.

Do you agree with this assessment?

D12 · Dependency Hygiene8.8 / 10Strong✓ Tool-verified

What it measures: Whether dependencies are current, secure, and not bloated.

Method: Manifest scan via dotnet list package across all projects; worst-signal-per-package deduction (saturating for vulnerabilities, capped-linear for deprecation/outdated) per KLoC. Exhaustive, deterministic.

Maturity: Documented → Verified → Prevented · effective 8.8 / 10 · rule-coverage 100% · ceiling Verified

25 outdated, 0 vulnerable, 0 deprecated packages.

Outdated: Microsoft.Extensions.Logging.Console · ×25

What to do

Enforce Dependency Hygiene in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Verified — provenance only; does not change the score.

Detailed fixes: d12_recommendation.md · top locations in Appendix A, every location in findings.md.

Do you agree with this assessment?

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: Documented → Verified → Prevented · 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.

Do you agree with this assessment?

D14 · License Compliance10.0 / 10Exemplary○ Nothing flagged

What it measures: Whether the licenses of third-party packages are compatible with your policy.

Method: Third-party package licenses resolved from declared package metadata and checked against the configured policy (allow/deny/copyleft). Deterministic; clean = no incompatible license found at metadata depth.

Maturity: Documented → Verified → Prevented · effective 10.0 / 10 · rule-coverage 100% · ceiling Verified

0 of 9 packages use a banned license.

✓ On the Gold path — maintain.

Detailed fixes: d14_recommendation.md.

Do you agree with this assessment?

D16 · Bus Factor9.4 / 10Exemplary✓ Tool-verified

What it measures: Whether knowledge is concentrated in too few people (the "bus factor").

Method: Living knowledge per author via time-decayed commit attribution (6-month half-life, focus weighting) across largest source files. Deterministic, avoids blame's mechanical-refactor false positives.

Maturity: Documented → Verified → Prevented · effective 9.4 / 10 · rule-coverage 100% · ceiling Documented

3 source file(s) have their living knowledge concentrated in one author (≥90% of recent, decayed contribution). The largest is src/Pulsar.Client/Internal/TransactionMetaStoreHandler.fs.

Off-boarding risk: anonymized user #1

Further sole-owners (lower concentration)

✓ On the Gold path — maintain.

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

Do you agree with this assessment?

D17 · Explicit Debt9.7 / 10Exemplary✓ Tool-verified

What it measures: Acknowledged debt left in the code — TODOs, dead code, suppressed warnings.

Method: Roslyn syntactic debt markers (suppressions/TODO/FIXME/HACK/empty-catch/commented-code/Obsolete) plus SymbolFinder dead-code analysis; weighted-debt-per-KLoC density deducted 2.0x per unit. Deterministic, exhaustive.

Maturity: Documented → Verified → Prevented · effective 9.7 / 10 · rule-coverage 100% · ceiling Prevented

4 deducted debt markers + 0 dead symbols across 3866 LoC (0.2/KLoC) → score 9.7.

TodoComment · ×2src/Pulsar.Client.Proto/DynamicJsonConverter.cs:47

CommentedOutCodeexamples/CsharpExamples/Program.cs:21

BarePragmaDisableexamples/CsharpExamples/RealWorld.cs:8

✓ On the Gold path — maintain.

Detailed fixes: d17_recommendation.md · top locations in Appendix A, every location in findings.md.

Do you agree with this assessment?

D19 · Documentation Quality / 10Adequate◐ 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: Documented → Verified → Prevented · effective Adequate / 10 · rule-coverage 100% · ceiling Documented

The pulsar-client-dotnet README is a solid single-document overview with strong community contribution guidance, testing instructions, and an architecture description. It includes links to the Pulsar docs for API understanding, a dedicated examples folder, and a Docker-compose compose file reference. However it lacks a comprehensive contributing guide (building/configuring/running tests), a full features list beyond the initial one-line bulleted list, and any documentation of how pulsar-client-dotnet interacts with the Pulsar broker directly (e.g., connection reuse, API surface). The architecture doc is thin but explains Unbounded Channels and discriminated unions as message models.

Low XML-doc coverage: CsharpExamples · ×2examples/CsharpExamples/CsharpExamples.csproj

The README links to an external examples folder (https://github.com/fsharplang-ru/pulsar-client-dotnet/tree/develop/examples) but does not mention how to build or run the examples locally.README.md

What to do

Resolve the 2 Low XML-doc coverage finding(s) in Documentation Quality — start with CsharpExamples.csproj, Pulsar.Client.Proto.csproj. — One of this dimension's main actionable groups (2 warning-level).
Resolve the 1 The README links to an external examples folder (https finding(s) in Documentation Quality — start with README.md. — One of this dimension's main actionable groups (1 recommendation-level).

Detailed fixes: d19_recommendation.md · top locations in Appendix A, every location in findings.md.

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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: Documented → Verified → Prevented · effective Exemplary / 10 · rule-coverage 100% · ceiling Verified

0 naming inconsistencies across 200 sampled symbols.

✓ On the Gold path — maintain.

Detailed fixes: d21_recommendation.md.

Do you agree with this assessment?

D24 · Comment Value / 10Adequate◐ Sampled · advisory

What it measures: Whether comments are worth it — explaining WHY (valuable) rather than WHAT (redundant).

Method: Judged by language model at low temperature (0.0-0.1) on deterministically sampled inline comments with surrounding code; findings verified back to sampled comments by substring match. Advisory, sampled.

Maturity: Documented → Verified → Prevented · effective Adequate / 10 · rule-coverage 100% · ceiling Documented

10 valuable / 2 redundant across 32 sampled comments; 2 shown with locations.

redundant comment · ×2src/Pulsar.Client.Proto/Crc32c.cs:14

What to do

Resolve the 2 redundant comment finding(s) in Comment Value — start with Crc32c.cs, DynamicJsonConverter.cs. — One of this dimension's main actionable groups (2 recommendation-level).

Detailed fixes: d24_recommendation.md · top locations in Appendix A, every location in findings.md.

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D26 · Project Cohesion10.0 / 10Exemplary✓ Tool-verified

What it measures: Whether each project is a focused, coherent unit rather than an oversized grab-bag.

Method: Project size overshoot penalties (LoC / public-type count / namespace count, 2-of-3 flag) weighted by log magnitude. Exhaustive across projects, deterministic, LLM-independent.

Maturity: Documented → Verified → Prevented · effective 10.0 / 10 · rule-coverage 100% · ceiling Documented

0 of 4 projects flagged as possibly oversized/incoherent.

✓ On the Gold path — maintain.

Detailed fixes: d26_recommendation.md.

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D28 · Secrets (history)9.0 / 10Exemplary✓ Tool-verified

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: Documented → Verified → Prevented · effective 9.0 / 10 · rule-coverage 100% · ceiling Documented

1 finding(s): 0 critical, 1 high, 0 medium, 0 low. Remediation for historically-committed secrets is credential rotation — they remain in history regardless of later deletion.

Secret: generic-api-keyexamples/Oauth2Files/credentials_file.json:4detected by gitleaks finding

Rotate the exposed credentials — git history can't be un-committed

✓ On the Gold path — maintain.

Detailed fixes: d28_recommendation.md · top locations in Appendix A, every location in findings.md.

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D29 · Static Analysis (SAST)5.0 / 10Adequate✓ 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: Documented → Verified → Prevented · effective 5.0 / 10 · rule-coverage 100% · ceiling Documented

4 finding(s): 0 critical, 4 high, 0 medium, 0 low.

High: github-actions-mutable-action-tag · ×4.github/workflows/dotnetcore-ubuntu.yml:11detected by semgrep finding

What to do

Resolve the 4 High finding(s) in Static Analysis (SAST) — start with dotnetcore-ubuntu.yml (2), dotnetcore-windows.yml (2). — One of this dimension's main actionable groups (4 issue-level).

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

Do you agree with this assessment?

D30 · Dependency Vulnerabilities9.4 / 10Exemplary✓ Tool-verified

What it measures: Whether any dependencies have known published vulnerabilities (CVEs), direct or transitive.

Method: NuGet CVE scan via dotnet list package --vulnerable including transitive; severity tally (Critical/High/Medium/Low) to 0-10 tight normalizer. Exhaustive, deterministic; degrades when absent.

Maturity: Documented → Verified → Prevented · effective 9.4 / 10 · rule-coverage 100% · ceiling Documented

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

High CVE: System.Text.Json 7.0.3detected by dotnet list package --vulnerable

✓ On the Gold path — maintain.

Detailed fixes: d30_recommendation.md · top locations in Appendix A, every location in findings.md.

Do you agree with this assessment?

D34 · Knowledge Freshness9.2 / 10Exemplary✓ 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: Documented → Verified → Prevented · effective 9.2 / 10 · rule-coverage 100% · ceiling Documented

4 of 54 significant source file(s) are orphaned — their living knowledge has decayed to nothing, so no one currently understands them. The largest is src/Pulsar.Client/Internal/ConsumerStatsImpl.fs.

Further orphaned files (smaller)

✓ On the Gold path — maintain.

Detailed fixes: d34_recommendation.md · top locations in Appendix A, every location in findings.md.

Do you agree with this assessment?

D35 · Change Coupling8.7 / 10Strong✓ 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: Documented → Verified → Prevented · effective 8.7 / 10 · rule-coverage 100% · ceiling Documented

Strongest change-coupling: DeadLetters.fs↔ConsumerImpl.fs 89%; ConsumerBuilder.fs↔ConsumerImpl.fs 76%; ProducerBuilder.fs↔ProducerImpl.fs 70%

Change coupling: DeadLetters.fs ↔ ConsumerImpl.fs · ×10src/Pulsar.Client/Api/DeadLetters.fs

What to do

Resolve the 10 Change coupling finding(s) in Change Coupling — start with IProducer.fs (2), ClientCnx.fs (2), DeadLetters.fs. — One of this dimension's main actionable groups (10 warning-level).

Detailed fixes: d35_recommendation.md · top locations in Appendix A, every location in findings.md.

Do you agree with this assessment?

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: Documented → Verified → Prevented · effective 0.0 / 10 · rule-coverage 100% · ceiling Documented

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

Unpinned build actions

Workflow token permissions not restricted

No build provenance

No artifact signing

No SBOM

What to do

Resolve the 1 Unpinned build actions finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 Workflow token permissions not restricted finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 No build provenance 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.

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D39 · IL Efficiency10.0 / 10Exemplary✓ Tool-verified

Method: IL instruction count per method, read from the BUILT first-party assemblies via Mono.Cecil (the target is compiled on a deep run); scored on the fraction of methods whose emitted IL body exceeds the size threshold. Sees compiler-generated bloat source can't; not-applicable when the target fails to build. Deterministic.

Maturity: Documented → Verified → Prevented · effective 10.0 / 10 · rule-coverage 100% · ceiling Verified

0 of 941 first-party methods have an oversized IL body.

✓ On the Gold path — maintain.

Detailed fixes: d39_recommendation.md.

Do you agree with this assessment?

Frontend & cross-cutting dimensions

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

AX10 · Code composition10.0 / 10Exemplary✓ Tool-verified

Other · Architecture — How the codebase splits by code ROLE — domain, application, infrastructure, test, generated. The significance map behind the knowledge/coupling weighting, and a DDD signal in its own right: a thin domain core under fat infrastructure is the anemic-domain smell, quantified.

Method: Roslyn line-count by code ROLE: every source file classified Domain/Application/Infrastructure/Test/Generated by namespace + path convention (the shared CodeRoleClassifier), then significant lines summed per role. Deterministic; the advisory score is the business-logic (domain+application) share of production code.

Coverage: Population: ALL source files, each bucketed into ONE of five roles (Domain/Application/Infrastructure/Test/Generated) by namespace + path convention — a file whose layer isn't named in the convention falls to Application (the neutral default), and the split is line-count, not semantic depth or business value.

What to do

The domain core is a small share of production code — check that business logic isn't leaking into the application/infrastructure layers (a thin domain is the anemic-domain smell).

Do you agree with this assessment?

AX3 · Project dependency cycles10.0 / 10Exemplary✓ Tool-verified

Other · Architecture — Whether the project-reference graph is acyclic (cycles block independent build/deploy and signal eroding boundaries).

Method: Project reference cycles via elementary-DFS over real .csproj references, using the engine shared with D5/D7; cyclic versus acyclic. Exhaustive, deterministic.

Do you agree with this assessment?

AX4 · Dependency direction10.0 / 10Exemplary✓ Tool-verified

Other · Architecture — Whether dependencies point inward (Domain ← Application ← Infrastructure/Web) — the clean-architecture dependency rule, checked across the project graph.

Method: Layer violations by name-segment inference (Domain/Core to Application to Infrastructure/Web) over the project-reference graph. Exhaustive over all projects, deterministic.

Do you agree with this assessment?

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.

Do you agree with this assessment?

GD1 · Unfinished & placeholder code10.0 / 10Exemplary○ Nothing flagged

Other · Code Health — Unreviewed-generation residue: shipped members still throwing NotImplementedException, and placeholder string literals left in non-test, non-generated code. Scored as a quality signature, never as a claim about authorship.

Method: Roslyn syntax scan: NotImplementedException throws and placeholder string literals in non-test, non-generated shipped code. Deterministic, code-shape signature.

Do you agree with this assessment?

IC1 · Incompleteness & stubs10.0 / 10Exemplary○ Nothing flagged

Other · Code Health — Unfinished work detected by code SHAPE, not keywords: members that only throw a "not implemented" exception, methods that take inputs and return a constant, async methods that never await, dead `if (false)` / `#if false` branches, and skeleton types most of whose members are holes. A real, objective slice of technical debt.

Method: Roslyn syntax scan: incompleteness by code shape (constant-returning methods, async-never-await, #if false branches, skeleton types), not keyword-gated. Deterministic, code-shape heuristic.

A line of code has been commented out rather than removed — dead weight that rots and confuses. Delete it (version control remembers). — DynamicJsonConverter.cs:90

What to do

Clear the softer debt: remove commented-out code and dead branches, re-enable or delete skipped tests, and replace blanket warning suppressions with targeted ones.

Do you agree with this assessment?

M1 · Documentation (README)7.3 / 10Strong✓ 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.

What to do

Add an 'Architecture' / 'How it works' section to the root README — the high-level shape.
Add a README to the 4 of 4 project(s) that lack one — worth up to 2 pts.

Do you agree with this assessment?

M2 · Architecture documentation2.0 / 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.

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).

Do you agree with this assessment?

M3 · Folder & project structure8.0 / 10Strong✓ 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.

Only 1/4 projects share a common root namespace — the code's module identity is inconsistent.

What to do

Adopt a consistent root-namespace convention (a shared prefix, e.g. Acme.*); short project-file/directory names are fine as long as the RootNamespace is uniform.

Do you agree with this assessment?

M4 · Documentation accuracy8.0 / 10Strong◐ 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.

README advertises a RAG / ML engine, but no ML/RAG code or dependency exists

What to do

Reconcile the README with reality: README advertises a RAG / ML engine, but no ML/RAG code or dependency exists.

Do you agree with this assessment?

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.

Do you agree with this assessment?

P3 · Security & performance tooling0.0 / 10Critical✓ 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.

No static application security testing detected. For this repository's stack, add `semgrep --config=auto` plus gitleaks for committed secrets (F# is not a CodeQL language and has no language-specific SAST engine) as a CI step.

What to do

Add a SAST step to CI running what this repository's stack ships: `semgrep --config=auto` plus gitleaks for committed secrets (F# is not a CodeQL language and has no language-specific SAST engine) — so a security regression fails the build instead of landing.
Enable Dependabot/Renovate or a dependency-review gate.
Add gitleaks/trufflehog in CI to block PRs that introduce committed secrets.

Do you agree with this assessment?

P4 · Deployment & Rollback5.0 / 10Adequate✓ 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

Nothing pauses a release for a human: publish as a draft release (or gate the release job on a protected tag/manual dispatch) so a bad build can be stopped before users can download it.

Do you agree with this assessment?

P5 · DR & Backup3.0 / 10Weak✓ 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

Codify backups + geo-recovery in IaC (snapshot/replication/geo-redundant) to back the DR plan.
Enable purge protection / soft-delete (and prevent_destroy on critical resources) so data stores can't be lost to an accidental or malicious delete.

Do you agree with this assessment?

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.

No CHANGELOG/HISTORY/RELEASES file — what shipped when isn't easy to reconstruct for support or audit. (Versioning/tagging makes releases traceable, but a changelog records the what.)

What to do

Keep a changelog (e.g. Keep-a-Changelog) recording what shipped in each release.

Do you agree with this assessment?

X1 · Async correctness10.0 / 10Exemplary○ Nothing flagged

Other · Code Health — Whether the code avoids sync-over-async (deadlock-prone blocking on tasks) and async void.

Method: Roslyn syntax scan: async methods scanned for .Wait()/.GetAwaiter().GetResult() and async-void outside event handlers. Deterministic, hard fact per invocation.

Do you agree with this assessment?

X2 · Cancellation propagation4.5 / 10Weak✓ Tool-verified

Other · Code Health — Whether async methods accept a CancellationToken so work can be cancelled (adoption curve).

Method: Roslyn scan: every async method (excluding framework-fixed overrides/Blazor handlers) checked for CancellationToken parameter presence. Deterministic, adoption percentage.

Only 1/11 async methods accept a CancellationToken, so in-flight work can't be stopped early when the caller gives up — whatever ends it in your host (shutdown signal, timeout, abandoned request, user cancel). Thread a token through the call chain and honour it at each await and loop; where a method genuinely cannot be interrupted, omitting it is a deliberate choice — judge against your hosting model.
No CancellationToken parameter — this work can't be stopped early once started. (×9) — CustomProps.cs:11, Oauth2.cs:28, Reader.cs:10, …
No CancellationToken parameter — the body observes an ambient token instead (a field or a context object), so the work does stop on cancellation, but a caller cannot cancel this call independently of the owner that created that token. — RealWorld.cs:65

What to do

Thread a CancellationToken through async methods so work stops promptly on cancellation.

Do you agree with this assessment?

X3 · Exception handling10.0 / 10Exemplary○ Nothing flagged

Other · Code Health — Whether exceptions are handled rather than silently swallowed or rethrown with lost stack traces.

Method: Roslyn syntax scan: every catch clause counted; empty catches and bare rethrows flagged. Population is all catch clauses, not estimated. Deterministic, hard fact.

Do you agree with this assessment?

X4 · Structured logging10.0 / 10Exemplary○ Nothing flagged

Other · Code Health — Whether log calls use message templates (queryable) rather than interpolated strings.

Method: Roslyn syntax scan: every log call-site counted; interpolated-string first-argument violations flagged. Population is all log calls, not estimated. Deterministic.

Do you agree with this assessment?

X5 · Nullable reference types2.0 / 10Critical✓ Tool-verified

Other · Code Health — Whether nullable reference types are enabled and not undermined by heavy `!` suppression.

Method: Roslyn compiler-options scan: NullableContextOptions per project; null-forgiving (!) suppression density per 1k syntax nodes. Deterministic, adoption plus suppression penalty.

0/2 NRT-eligible project(s) enable <Nullable>enable</Nullable> (projects targeting a pre-C#-8 framework are excluded — NRTs aren't available there). NRTs catch a whole class of null-deref bugs at compile time.

What to do

Enable <Nullable>enable</Nullable> across all projects and resolve warnings rather than suppressing with `!`.

Do you agree with this assessment?

Reference — by lens

The score is the rank-weighted fold of these lenses (worst-heaviest), each including its meta-dimensions; a lens with a Critical contributor is capped at Fair (its band reads "gated by …") and is never the strongest area however high its average.

Lens	Score	Rating	Impact
Code Health	66%	Adequate — gated by X5	Capped at Fair by a Critical contributor — resolve it before relying on this lens.
Architecture	98%	Exemplary	Strongest area.
Maturity	60%	Adequate — gated by M2	Capped at Fair by a Critical contributor — resolve it before relying on this lens.
Readiness	41%	Weak — gated by P3, P5	Capped at Fair by a Critical contributor — resolve it before relying on this lens.
Security	58%	Adequate — gated by D36	Capped at Fair by a Critical contributor — resolve it before relying on this lens.

Not included — 58 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
AX2 Stateful singletons — no singleton implementations detected
AX6 Interface segregation — no public interfaces
AX7 Slice cohesion — not applicable — not a vertical-slice architecture
AX8 Test isolation — no test/production split to check
AX9 CQS / query purity — no CQRS query handlers detected — query purity is not applicable to this codebase
C1 Data Protection — No personal data detected in the analyzed source — no PII-typed entity/column names (Email, FirstName, DateOfBirth, …), no ASP.NET Identity / user-account model, and no stored user credentials. GDPR data-protection controls are therefore N/A here. If this is intentional, record the no-PII posture in an ADR; if the app does process personal data, name those fields conventionally so this dimension activates.
C2 Access Controls — No access-control surface detected in the analyzed source — no web/app surface to authorize (no HTTP API or web-UI project) and no authorization code at all (no [Authorize]/policies, no imperative guard methods). Access control is therefore N/A here — this is a library/CLI, which is authorized by its CALLER, not by itself. If this codebase grows request handlers, the dimension reactivates and a default-deny posture is expected then.
C3 Audit Trail — No personal data detected in the analyzed source — no PII-typed entity/column names (Email, FirstName, DateOfBirth, …), no ASP.NET Identity / user-account model, and no stored user credentials. GDPR data-protection controls are therefore N/A here. If this is intentional, record the no-PII posture in an ADR; if the app does process personal data, name those fields conventionally so this dimension activates.
C4 Data Retention — No personal data detected in the analyzed source — no PII-typed entity/column names (Email, FirstName, DateOfBirth, …), no ASP.NET Identity / user-account model, and no stored user credentials. GDPR data-protection controls are therefore N/A here. If this is intentional, record the no-PII posture in an ADR; if the app does process personal data, name those fields conventionally so this dimension activates.
C5 Data-Subject Rights — No personal data detected in the analyzed source — no PII-typed entity/column names (Email, FirstName, DateOfBirth, …), no ASP.NET Identity / user-account model, and no stored user credentials. GDPR data-protection controls are therefore N/A here. If this is intentional, record the no-PII posture in an ADR; if the app does process personal data, name those fields conventionally so this dimension activates.
D1 Cyclomatic Complexity — Most of this repository's production source (.fs) had no cyclomatic complexity computed for it, so cyclomatic complexity was not measured — whatever else this pass did read is not this repository's complexity. Not scored: no method bodies were exposed for those file kinds by any language model this pass could load. This is a gap in the analysis run, not a finding about this repository.
D10 Test Quality — ~9759 lines of test source are present (.fs) 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
D15 Churn × Complexity Hotspots — complexity unreadable for .fs — churn × complexity hotspots could not be measured
D18 Solution Shape — D18 scores the shape of a C#/VB .NET solution, but this repository's production source is mostly .fs, which the C#/VB workspace does not load — the projects that loaded are an immaterial minority, so solution shape was not assessed for this repository. Not scored — this is a gap in the analyzer's reach, not a verdict about this repository.
D2 Cognitive Complexity — Most of this repository's production source (.fs) had no cognitive complexity computed for it, so cognitive complexity was not measured — whatever else this pass did read is not this repository's complexity. Not scored: no method bodies were exposed for those file kinds by any language model this pass could load. This is a gap in the analysis run, not a finding about this repository.
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 — At only 3866 LoC the codebase is small and single-purpose despite four projects, so explicit boundaries are not needed.
D25 ADR Conformance — no ADRs to check
D27 Navigability — Most of this repository's production source (.fs) was not read by navigability analysis, so tracing effort was not assessed — whatever else resolved (another language's projects) is not this repository's navigability. Not scored — this is a gap in the analyzer's reach, not a verdict about this repository.
D3 God Classes — Most of this repository's production source (.fs) was not read by god-class detection, so class size was not assessed for the languages that are the product — whatever else this pass did read is not this repository's class size. Not scored — this is a gap in the analyzer, not a verdict about this repository.
D31 IaC & Container Security — No Infrastructure-as-Code or container manifests found (Dockerfile, Terraform, Kubernetes/Helm, CloudFormation); nothing to scan.
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.
D37 Vulnerability-disclosure Policy — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
D38 OSV Dependency Vulnerabilities — No supported non-.NET dependency lockfile found outside build output (npm package-lock/yarn/pnpm/bun, Go go.mod, Rust Cargo.lock, Maven pom.xml, Gradle lockfiles, Python requirements.txt/poetry.lock/Pipfile.lock/pdm.lock, PHP composer.lock, Ruby Gemfile.lock, Elixir mix.lock, Dart pubspec.lock, Swift Package.resolved); nothing for OSV to scan. A NuGet-only repo stays NotApplicable — .NET CVEs are D30's domain.
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.
D6 Cohesion (LCOM4) — Cohesion (LCOM4) is measured over a C#/VB class graph, and this repository's production source is mostly .fs, 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 dependency cycles — architectural integrity not assessed
D8 Code Coverage — Coverage not measured — no coverage collector is wired up
D9 Test Distribution — Test source is present (.fs) 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 — not scored — this repository shows only 1 of the 3 signals this check looks for (1 value object(s))
ED1 Event-Driven — not scored — this repository shows none of the 3 signals this check looks for
ED5 Idempotency — no mutating command handlers or message consumers detected — idempotency check not applicable
ES1 Event Sourcing — not scored — this repository shows none of the 3 signals this check looks for
P12 CI test-gate honesty — Reported, not scored — and nothing was matched here. The coverage check applies to any stack, but the checks for excluded tests, skipped tests and sleep-based synchronisation currently recognise only some ecosystems' test-runner idioms, so on a repository built with another stack the zeros below mean 'not checked', not 'clean'.
P2 Observability — This repo is a library, not a deployed service — it has no process to operate, so production observability (structured logging, tracing/metrics, health checks) is N/A. A library may log via an injected ILogger, but the absence of operational telemetry is not a defect here. If it grows a host (web API, worker), the dimension reactivates.
P7 Outbound HTTP resilience — not applicable — this isn't a service/API/worker
P8 Schema migrations — no EF Core usage detected
P9 Domain vs controller coverage — no coverage report found on disk — produce a coverage report in a standard format (Cobertura — `dotnet test --collect:"XPlat Code Coverage"` with a `coverlet.collector` PackageReference) 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 is assessed only for perf-relevant repos — a packaged library, one that ships benchmarks, or one already using allocation-aware APIs. This repo isn't one, so the Performance lens is not applicable and is excluded from the score.
PF2 Allocation hygiene — Performance is assessed only for perf-relevant repos — a packaged library, one that ships benchmarks, or one already using allocation-aware APIs. This repo isn't one, so the Performance lens is not applicable and is excluded from the score.
PF3 Async & latency hygiene — Performance is assessed only for perf-relevant repos — a packaged library, one that ships benchmarks, or one already using allocation-aware APIs. This repo isn't one, so the Performance lens is not applicable and is excluded from the score.
S1 Web-Security Posture — No web surface detected in the analyzed source — no HTTP API or web-UI project (no controllers/minimal-API endpoints, no Razor/Blazor views) and no web middleware (HTTPS redirection, HSTS, security headers, cookies). Transport security, security headers, secure cookies, CSRF/input-validation and middleware-order controls are therefore N/A here — this is a library/CLI/worker, not a web app. Crypto hygiene was still checked and found nothing to flag. If this codebase becomes web-facing, the dimension reactivates automatically.
SC1 Supply-chain hygiene — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
X6 Hand-rolled structured-format parsing — Reported, not scored — this card publishes what it found rather than grading it. Its content is the findings and the key metric above.
X7 Silent fallback defaults — Reported, not scored — this card publishes what it found rather than grading it. Its content is the findings and the key metric above.

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 — 6 finding(s)

D29 · Static Analysis (SAST) · High · ×4

High: github-actions-mutable-action-tag .github/workflows/dotnetcore-ubuntu.yml:11 — 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@v3`; resolve the SHA it points at today with `gh api repos/actions/checkout/commits/v3 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/dotnetcore-ubuntu.yml:19 — 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/setup-dotnet@<40-character SHA>`. This step references `actions/setup-dotnet@v3`; resolve the SHA it points at today with `gh api repos/actions/setup-dotnet/commits/v3 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/dotnetcore-windows.yml:11 — 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@v3`; resolve the SHA it points at today with `gh api repos/actions/checkout/commits/v3 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/dotnetcore-windows.yml:13 — 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/setup-dotnet@<40-character SHA>`. This step references `actions/setup-dotnet@v3`; resolve the SHA it points at today with `gh api repos/actions/setup-dotnet/commits/v3 --jq .sha`.

D28 · Secrets (history) · Secret · ×1

Secret: generic-api-key examples/Oauth2Files/credentials_file.json:4 — matched rule 'generic-api-key'

D30 · Dependency Vulnerabilities · High CVE · ×1

High CVE: System.Text.Json 7.0.3 — System.Text.Json 7.0.3 (transitive) has a High advisory; affects 2 projects — one upgrade fixes all. https://github.com/advisories/[GHSA redacted]

Warning — 22 finding(s)

D35 · Change Coupling · Change coupling · ×10

Change coupling: DeadLetters.fs ↔ ConsumerImpl.fs src/Pulsar.Client/Api/DeadLetters.fs — `src/Pulsar.Client/Api/DeadLetters.fs` and `src/Pulsar.Client/Internal/ConsumerImpl.fs` change together 89% of the time (16 of the 18 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in different directories, but in this ecosystem the namespace is declared in the FILE, not by the folder — so the two may well share one namespace and reference each other with no import for this pass to see. Read the pair before acting: if one derives from or overrides the other, the dependency is explicit in the type declaration and the co-change is definitional; if one registers itself into the other through a hook or an initialiser, the missing dependency is DELIBERATE and the thing to add is a comment saying so; if they simply belong together, co-locate them; if none of these holds, the coupling is hidden and worth breaking.
Change coupling: ConsumerBuilder.fs ↔ ConsumerImpl.fs src/Pulsar.Client/Api/ConsumerBuilder.fs — `src/Pulsar.Client/Api/ConsumerBuilder.fs` and `src/Pulsar.Client/Internal/ConsumerImpl.fs` change together 76% of the time (28 of the 37 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in different directories, but in this ecosystem the namespace is declared in the FILE, not by the folder — so the two may well share one namespace and reference each other with no import for this pass to see. Read the pair before acting: if one derives from or overrides the other, the dependency is explicit in the type declaration and the co-change is definitional; if one registers itself into the other through a hook or an initialiser, the missing dependency is DELIBERATE and the thing to add is a comment saying so; if they simply belong together, co-locate them; if none of these holds, the coupling is hidden and worth breaking.
Change coupling: ProducerBuilder.fs ↔ ProducerImpl.fs src/Pulsar.Client/Api/ProducerBuilder.fs — `src/Pulsar.Client/Api/ProducerBuilder.fs` and `src/Pulsar.Client/Internal/ProducerImpl.fs` change together 70% of the time (19 of the 27 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in different directories, but in this ecosystem the namespace is declared in the FILE, not by the folder — so the two may well share one namespace and reference each other with no import for this pass to see. Read the pair before acting: if one derives from or overrides the other, the dependency is explicit in the type declaration and the co-change is definitional; if one registers itself into the other through a hook or an initialiser, the missing dependency is DELIBERATE and the thing to add is a comment saying so; if they simply belong together, co-locate them; if none of these holds, the coupling is hidden and worth breaking.
Change coupling: IProducer.fs ↔ ConsumerImpl.fs src/Pulsar.Client/Api/IProducer.fs — `src/Pulsar.Client/Api/IProducer.fs` and `src/Pulsar.Client/Internal/ConsumerImpl.fs` change together 70% of the time (14 of the 20 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in different directories, but in this ecosystem the namespace is declared in the FILE, not by the folder — so the two may well share one namespace and reference each other with no import for this pass to see. Read the pair before acting: if one derives from or overrides the other, the dependency is explicit in the type declaration and the co-change is definitional; if one registers itself into the other through a hook or an initialiser, the missing dependency is DELIBERATE and the thing to add is a comment saying so; if they simply belong together, co-locate them; if none of these holds, the coupling is hidden and worth breaking.
Change coupling: ProducerImpl.fs ↔ TransactionMetaStoreHandler.fs src/Pulsar.Client/Internal/ProducerImpl.fs — `src/Pulsar.Client/Internal/ProducerImpl.fs` and `src/Pulsar.Client/Internal/TransactionMetaStoreHandler.fs` change together 67% of the time (10 of the 15 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in the same directory, and in this ecosystem sibling files there normally share one namespace/package — so a direct reference between them needs no import and this pass cannot see whether one exists. Read the pair before acting: if one file only DECLARES what the other consumes (a constants/types file beside its user), the co-change is definitional and the question is whether the split earns its keep; if they duplicate structure, extract the common part into a shared function or type they both call; if neither holds, the coupling is hidden and worth breaking.
Change coupling: ConsumerImpl.fs ↔ PartitionedProducerImpl.fs src/Pulsar.Client/Internal/ConsumerImpl.fs — `src/Pulsar.Client/Internal/ConsumerImpl.fs` and `src/Pulsar.Client/Internal/PartitionedProducerImpl.fs` change together 66% of the time (19 of the 29 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in the same directory, and in this ecosystem sibling files there normally share one namespace/package — so a direct reference between them needs no import and this pass cannot see whether one exists. Read the pair before acting: if one file only DECLARES what the other consumes (a constants/types file beside its user), the co-change is definitional and the question is whether the split earns its keep; if they duplicate structure, extract the common part into a shared function or type they both call; if neither holds, the coupling is hidden and worth breaking.
Change coupling: ClientCnx.fs ↔ TransactionMetaStoreHandler.fs src/Pulsar.Client/Internal/ClientCnx.fs — `src/Pulsar.Client/Internal/ClientCnx.fs` and `src/Pulsar.Client/Internal/TransactionMetaStoreHandler.fs` change together 60% of the time (9 of the 15 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in the same directory, and in this ecosystem sibling files there normally share one namespace/package — so a direct reference between them needs no import and this pass cannot see whether one exists. Read the pair before acting: if one file only DECLARES what the other consumes (a constants/types file beside its user), the co-change is definitional and the question is whether the split earns its keep; if they duplicate structure, extract the common part into a shared function or type they both call; if neither holds, the coupling is hidden and worth breaking.
Change coupling: ClientCnx.fs ↔ ConsumerImpl.fs src/Pulsar.Client/Internal/ClientCnx.fs — `src/Pulsar.Client/Internal/ClientCnx.fs` and `src/Pulsar.Client/Internal/ConsumerImpl.fs` change together 59% of the time (68 of the 115 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in the same directory, and in this ecosystem sibling files there normally share one namespace/package — so a direct reference between them needs no import and this pass cannot see whether one exists. Read the pair before acting: if one file only DECLARES what the other consumes (a constants/types file beside its user), the co-change is definitional and the question is whether the split earns its keep; if they duplicate structure, extract the common part into a shared function or type they both call; if neither holds, the coupling is hidden and worth breaking.
Change coupling: MultiTopicsConsumerImpl.fs ↔ PartitionedProducerImpl.fs src/Pulsar.Client/Internal/MultiTopicsConsumerImpl.fs — `src/Pulsar.Client/Internal/MultiTopicsConsumerImpl.fs` and `src/Pulsar.Client/Internal/PartitionedProducerImpl.fs` change together 55% of the time (16 of the 29 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in the same directory, and in this ecosystem sibling files there normally share one namespace/package — so a direct reference between them needs no import and this pass cannot see whether one exists. Read the pair before acting: if one file only DECLARES what the other consumes (a constants/types file beside its user), the co-change is definitional and the question is whether the split earns its keep; if they duplicate structure, extract the common part into a shared function or type they both call; if neither holds, the coupling is hidden and worth breaking.
Change coupling: IProducer.fs ↔ MultiTopicsConsumerImpl.fs src/Pulsar.Client/Api/IProducer.fs — `src/Pulsar.Client/Api/IProducer.fs` and `src/Pulsar.Client/Internal/MultiTopicsConsumerImpl.fs` change together 55% of the time (11 of the 20 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in different directories, but in this ecosystem the namespace is declared in the FILE, not by the folder — so the two may well share one namespace and reference each other with no import for this pass to see. Read the pair before acting: if one derives from or overrides the other, the dependency is explicit in the type declaration and the co-change is definitional; if one registers itself into the other through a hook or an initialiser, the missing dependency is DELIBERATE and the thing to add is a comment saying so; if they simply belong together, co-locate them; if none of these holds, the coupling is hidden and worth breaking.

D17 · Explicit Debt · TodoComment · ×2

TodoComment src/Pulsar.Client.Proto/DynamicJsonConverter.cs:47 — //TODO: Missing Datetime&Bytes Convert — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.
TodoComment src/Pulsar.Client.Proto/DynamicJsonConverter.cs:51 — //TODO: more num type — source code is not a task system: move the work to your tracker and leave a reference instead (e.g. `// REF: #123`), so the task is planned where tasks live and the ticket links back to the code.

D19 · Documentation Quality · Low XML-doc coverage · ×2

Low XML-doc coverage: CsharpExamples examples/CsharpExamples/CsharpExamples.csproj — CsharpExamples: 0 % XML-doc coverage (0/4).
Low XML-doc coverage: Pulsar.Client.Proto src/Pulsar.Client.Proto/Pulsar.Client.Proto.csproj — Pulsar.Client.Proto: 0 % XML-doc coverage (0/8).

D17 · Explicit Debt · CommentedOutCode · ×1

CommentedOutCode examples/CsharpExamples/Program.cs:21 — 8 consecutive commented-code lines

D17 · Explicit Debt · BarePragmaDisable · ×1

BarePragmaDisable examples/CsharpExamples/RealWorld.cs:8 — #pragma warning disable 4014 — the disable has no matching restore, so it does not end with the construct that needed it: it runs to the end of the file and silences the rule for everything written below, including code added years later. Close it with the matching restore directive immediately after the construct it covers, or fix the cause and drop the directive entirely.

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. 4 floating ref(s) across 2 workflow file(s). Each floating ref is itemized at file:line by the SAST (D29) lens.

D36 · Supply-chain Provenance & Signing · Workflow token permissions not restricted · ×1

Workflow token permissions not restricted — No workflow declares a `permissions:` block, so every job runs with the repository's default GITHUB_TOKEN scope (2 workflow file(s) checked). On a repository whose default is read/write, a compromised action or a malicious pull request inherits write access to code, issues, releases and packages. Declare a least-privilege `permissions:` block — `permissions: {contents: read}` at the top of each workflow, widened per job only where a job genuinely writes.

D4 · Code Duplication · Duplicated block (14 lines × 2) · ×1

Duplicated block (14 lines × 2) examples/CsharpExamples/CustomProps.cs:12 — examples/CsharpExamples/CustomProps.cs:12-25 | examples/CsharpExamples/Simple.cs:11-24 — 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 `examples/CsharpExamples/CustomProps.cs:12` 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 (13 lines × 2) · ×1

Duplicated block (13 lines × 2) examples/CsharpExamples/Simple.cs:17 — examples/CsharpExamples/Simple.cs:17-29 | examples/CsharpExamples/TlsAuthentication.cs:22-34 — 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 `examples/CsharpExamples/Simple.cs:17` 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 (8 lines × 3) · ×1

Duplicated block (8 lines × 3) examples/CsharpExamples/Oauth2.cs:50 — examples/CsharpExamples/Oauth2.cs:50-57 | examples/CsharpExamples/Simple.cs:26-33 | examples/CsharpExamples/TlsAuthentication.cs:31-38 — 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 `examples/CsharpExamples/Oauth2.cs:50` 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.

D8 · Code Coverage · Coverage not measured · ×1

Coverage not measured — no coverage collector is wired up — Coverage NOT MEASURED: the test suite built and its tests PASSED, but the run produced no coverage data — `--collect:"XPlat Code Coverage"` found no data collector, which is what a test project with no `coverlet.collector` PackageReference does. Nothing is wrong with the suite or the build; there is simply no coverage instrumentation wired up. Add a `coverlet.collector` PackageReference to the test project(s) (or commit the Cobertura/OpenCover/lcov report your CI produces) and real coverage will be measured. It is excluded from the score rather than counted as a near-zero defect.

Recommendation — 12 finding(s)

D24 · Comment Value · redundant comment · ×2

redundant comment src/Pulsar.Client.Proto/Crc32c.cs:14 — "0xFFFFFFFF" — delete - constant value restating the magic number; no WHY
redundant comment src/Pulsar.Client.Proto/DynamicJsonConverter.cs:47 — "TODO: Missing Datetime&Bytes Convert" — delete - TODO placeholder; only keep if the missing code actually explains WHY

D11 · Test Reliability · Test reliability not included · ×1

Test reliability not included — Test source is present (.fs) 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.

D15 · Churn × Complexity Hotspots · complexity unreadable for .fs · ×1

complexity unreadable for .fs — churn × complexity hotspots could not be measured — A hotspot is churn × complexity. Churn was measured (144 line(s) across the 90-day window), but no complexity could be computed for .fs, which is most of this repository's production code — so every churned file would score as complexity 0 and the hotspot list would be empty no matter how tangled the code is. Not scored — this is a gap in the analysis run, 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, 2 significant file(s) lose their only recent owner: src/Pulsar.Client/Internal/TransactionMetaStoreHandler.fs, src/Pulsar.Client/Api/AutoClusterFailover.fs. Pair on, review, or document these before any departure.

D16 · Bus Factor · Further sole-owners (lower concentration) · ×1

Further sole-owners (lower concentration) — 1 other contributor(s) are each the sole owner of a small amount of code below the off-boarding threshold — folded into the bus-factor score and metrics (3 single-owned of 51 analysed files in total, counted over production source files of roughly 100 lines or more, excluding tests, vendored, generated and example/demo trees, largest first). They are anonymized user #2 (1 file(s)) — spread or document their files in the same way, at lower priority than the named off-boarding risks above.

D19 · Documentation Quality · The README links to an external examples folder (https · ×1

The README links to an external examples folder (https://github.com/fsharplang-ru/pulsar-client-dotnet/tree/develop/examples) but does not mention how to build or run the examples locally. README.md — Add a quick 'Run Examples' section pointing to the local examples directory and any prerequisites.

D28 · Secrets (history) · Rotate the exposed credentials · ×1

Rotate the exposed credentials — git history can't be un-committed — Some of these secrets are in git HISTORY: deleting the file does not remove them (the commit persists on every clone, fork and backup). The remediation is to ROTATE each historically-exposed credential and treat it as compromised — not to delete the file. Rewriting history is disruptive and unreliable across existing forks. (Working-tree-only secrets — no commit — can instead be removed from the file and moved to a secret store.) Every location above sits inside a test/fixture/sample tree, so there may be no live credential to revoke — in that case the performable actions are different ones: confirm each value was never reused outside the tests (a fixture key shared with a staging or demo environment IS a live credential and must be rotated), generate this material at test time instead of committing it so the next one cannot be mistaken for a real leak, and record the deliberate exposure where a reader of the file will see it. Rotate anything that fails the first check.

D34 · Knowledge Freshness · Further orphaned files (smaller) · ×1

Further orphaned files (smaller) — 4 of 54 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: src/Pulsar.Client/Internal/ConsumerStatsImpl.fs, src/Pulsar.Client/Internal/ProducerStatsImpl.fs, src/Pulsar.Client.Otel/OtelConsumerInterceptor.fs (and 1 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, Authenticode via signtool, or `dotnet nuget sign` for packages) 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 (`sbom-tool generate` (install it with `dotnet tool install --global Microsoft.Sbom.DotNetTool`) or `dotnet CycloneDX` over the solution, `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.

Info — 26 finding(s)

D12 · Dependency Hygiene · Outdated · ×25

Outdated: Microsoft.Extensions.Logging.Console — Microsoft.Extensions.Logging.Console 10.0.1 → 10.0.10 available (referenced by CsharpExamples).
Outdated: OpenTelemetry — OpenTelemetry 1.15.3 → 1.17.0 available (referenced by CsharpExamples).
Outdated: OpenTelemetry.Exporter.Console — OpenTelemetry.Exporter.Console 1.15.3 → 1.17.0 available (referenced by CsharpExamples).
Outdated: Pulsar.Client — Pulsar.Client 3.16.0 → 3.18.0 available (referenced by CsharpExamples).
Outdated: Expecto — Expecto 10.2.3 → 11.1.0 available (referenced by UnitTests).
Outdated: Expecto.FsCheck — Expecto.FsCheck 10.2.3 → 11.1.0 available (referenced by UnitTests).
Outdated: Microsoft.NET.Test.Sdk — Microsoft.NET.Test.Sdk 18.0.1 → 18.8.1 available (referenced by UnitTests).
Outdated: Serilog — Serilog 4.3.0 → 4.4.0 available (referenced by UnitTests).
Outdated: YoloDev.Expecto.TestSdk — YoloDev.Expecto.TestSdk 0.15.5 → 0.16.0 available (referenced by UnitTests).
Outdated: Microsoft.Extensions.DependencyInjection — Microsoft.Extensions.DependencyInjection 10.0.1 → 10.0.10 available (referenced by IntegrationTests).
Outdated: AvroSchemaGenerator — AvroSchemaGenerator 2.9.2 → 2.10.0 available (referenced by Pulsar.Client).
Outdated: K4os.Compression.LZ4 — K4os.Compression.LZ4 1.3.6 → 1.3.8 available (referenced by Pulsar.Client).
Outdated: Microsoft.Extensions.Caching.Memory — Microsoft.Extensions.Caching.Memory 8.0.1 → 10.0.10 available (referenced by Pulsar.Client).
Outdated: Microsoft.Extensions.Logging — Microsoft.Extensions.Logging 8.0.0 → 10.0.10 available (referenced by Pulsar.Client).
Outdated: Microsoft.Extensions.Logging.Abstractions — Microsoft.Extensions.Logging.Abstractions 8.0.2 → 10.0.10 available (referenced by Pulsar.Client).
Outdated: Microsoft.IO.RecyclableMemoryStream — Microsoft.IO.RecyclableMemoryStream 3.0.0 → 3.0.1 available (referenced by Pulsar.Client).
Outdated: NSec.Cryptography — NSec.Cryptography 22.4.0 → 26.4.0 available (referenced by Pulsar.Client).
Outdated: Pipelines.Sockets.Unofficial — Pipelines.Sockets.Unofficial 2.2.8 → 2.2.16 available (referenced by Pulsar.Client).
Outdated: protobuf-net — protobuf-net 3.2.30 → 3.2.56 available (referenced by Pulsar.Client).
Outdated: protobuf-net.Reflection — protobuf-net.Reflection 3.2.12 → 3.2.52 available (referenced by Pulsar.Client).
Outdated: System.IO.Pipelines — System.IO.Pipelines 8.0.0 → 10.0.10 available (referenced by Pulsar.Client).
Outdated: zlib.net-mutliplatform — zlib.net-mutliplatform 1.0.6 → 1.1.0 available (referenced by Pulsar.Client).
Outdated: ZstdNet — ZstdNet 1.4.5 → 1.5.7 available (referenced by Pulsar.Client).
Outdated: OpenTelemetry.Api — OpenTelemetry.Api 1.15.3 → 1.17.0 available (referenced by Pulsar.Client.Otel).
Outdated: System.Threading.Channels — System.Threading.Channels 8.0.0 → 10.0.10 available (referenced by Pulsar.Client.Otel).

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.

Dimension	Tool	Version	Command	Findings	Raw output
D28 · Secrets (history)	gitleaks	—	gitleaks detect --no-banner --report-format json --report-path /dev/stdout --exit-code 0 --source .	1	artifacts/raw/gitleaks-history.json
D29 · Static Analysis (SAST)	semgrep	—	semgrep --config /opt/semgrep-rules/security-audit.yml --config /opt/semgrep-rules/owasp-top-ten.yml --json --quiet --timeout 0 --metrics off .	4	artifacts/raw/semgrep.json
D30 · Dependency Vulnerabilities	dotnet	—	dotnet list Pulsar.Client.sln package --vulnerable --include-transitive --format json	1	artifacts/raw/dotnet-vulnerable.json
D31 · IaC & Container Security	trivy	—	trivy: not applicable — No Infrastructure-as-Code or container manifests found (Dockerfile, Terraform, Kubernetes/Helm, CloudFormation); nothing to scan.	0	—
D32 · Data Compliance (PII/GDPR)	semgrep	—	semgrep: not applicable — No PII/GDPR-handling patterns detected (p/gdpr ruleset) — no data-compliance surface to assess.	0	—
D33 · JS/npm Dependency Vulnerabilities	trivy	—	trivy: 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	—
D37 · Vulnerability-disclosure Policy	disclosure	—	disclosure: not applicable — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.	0	—
D38 · OSV Dependency Vulnerabilities	osv-scanner	—	osv-scanner: not applicable — No supported non-.NET dependency lockfile found outside build output (npm package-lock/yarn/pnpm/bun, Go go.mod, Rust Cargo.lock, Maven pom.xml, Gradle lockfiles, Python requirements.txt/poetry.lock/Pipfile.lock/pdm.lock, PHP composer.lock, Ruby Gemfile.lock, Elixir mix.lock, Dart pubspec.lock, Swift Package.resolved); nothing for OSV to scan. A NuGet-only repo stays NotApplicable — .NET CVEs are D30's domain.	0	—
D40 · Network Egress Confinement	runtime-hardening	—	runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.	0	—
D41 · Kernel & Syscall Confinement	runtime-hardening	—	runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.	0	—
D42 · Runtime Threat Enforcement	runtime-hardening	—	runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.	0	—

Run 019fd541-55e9-7fb2-96d9-8c2750960df2 · every finding is also locatable in findings.md, and the complete scoring record (with exit codes + durations) in sidecar.json.

Fsprojects/pulsar-Client-Dotnet

Executive summary

Top priorities

Diagnosis — what's actually going on

At a glance — Code Health · 66% · Adequate · gated by X5

At a glance — Architecture · 98% · Exemplary

At a glance — Maturity · 60% · Adequate · gated by M2

At a glance — Readiness · 41% · Weak · gated by P3, P5

At a glance — Security · 58% · Adequate · gated by D36

Security & Compliance — OWASP Top-10 mapping

Roadmap

File quality

Methodology & how to trust this report

Tools & methods

Run transparency — what happened this run

Limitations & what we did not check

Per-dimension blind spots

The LLM boundary

Dimensions

Frontend & cross-cutting dimensions

Reference — by lens

Appendix A — Findings (grouped)

Appendix B — Reproduction & audit trail

Downloadable artifacts