castore-dev/castore

What it measures: How tangled the control flow is — methods with many branches are hard to test and change.

Method: Cyclomatic complexity per method (1 + decision points), computed exhaustively across production source; test projects separated by convention. Deterministic.

Maturity: Documented → Verified → Prevented · effective 9.8 / 10 · rule-coverage 100% · ceiling Prevented

1 method(s) exceeded the cyclomatic complexity threshold of 15; the worst was addImportExtension at 16. A further 4 method(s) were over the threshold but excluded as flat dispatchers (a long switch/match over independent cases: many branches, almost no nesting), the largest being LegacyDynamoDBEventStorageAdapter.constructor at 34 — they are counted neither in the figure above nor in this dimension's score. 4 files carry no cyclomatic complexity row at all for this reason — every one of their over-threshold methods was excluded, so the exclusion is disclosed nowhere in the file itself: packages/event-storage-adapter-dynamodb/src/legacyAdapter.ts (LegacyDynamoDBEventStorageAdapter.constructor at 34), packages/event-storage-adapter-dynamodb/src/singleTableAdapter.ts (DynamoDBSingleTableEventStorageAdapter.constructor at 34), packages/event-storage-adapter-in-memory/src/adapter.ts (InMemoryEventStorageAdapter.constructor at 21), packages/event-storage-adapter-redux/src/adapter.ts (ReduxEventStorageAdapter.constructor at 18). They are named here because the per-file figures other dimensions report are taken BEFORE this exclusion, so such a file can show a high maximum complexity elsewhere in this report and nothing here, with nothing to reconcile the two.

What to do

1. Bring the 1 body over 15 down to 15 or less in Cyclomatic Complexity — start with addImportExtension (cyclomatic 16). — Refactoring it lifts Cyclomatic Complexity from 9.9 to about 10.0/10.
2. Enforce Cyclomatic Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.

Detailed fixes: d1_recommendation.md · top locations in Appendix A, every location in findings.md.

What it measures: How hard the code is for a person to follow, beyond raw branching.

Method: Cognitive complexity per method (Sonar-style nesting-penalized score), computed exhaustively over production code, excluding test projects. Deterministic.

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

2 method(s) exceeded the cognitive complexity threshold of 15; the worst was PostgresEventStorageAdapter.pushEventGroup at 22.

What to do

1. Bring the 2 bodies over 15 down to 15 or less in Cognitive Complexity — start with PostgresEventStorageAdapter.pushEventGroup (cognitive 22), addImportExtension (cognitive 17). — This score is capped by its worst body, so a finding fixed alone moves it by almost nothing — the next one down takes its place. Refactoring these 2 together lifts Cognitive Complexity from 9.4 to about 10.0/10, projected with the scoring formula itself and assuming each lands exactly at 15.
2. Enforce Cognitive Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.

Detailed fixes: d2_recommendation.md · top locations in Appendix A, every location in findings.md.

What it measures: Over-large classes that try to do too much ("god classes").

Method: God-class detection by line and method-count thresholds per logical type (partial classes unified), filtered for generated code and registration/contract false positives. Deterministic.

Maturity: Documented → Verified → Prevented · effective 6.3 / 10 · rule-coverage 100% · ceiling Prevented

9 over-large unit(s) detected — types, modules or files that carry too much.

What to do

1. Resolve the 7 MethodTooLong finding(s) in God Classes — start with adapter.ts (4), singleTableAdapter.ts, legacyAdapter.ts. — One of this dimension's main actionable groups (7 warning-level).
2. Resolve the 1 FunctionTooLong finding(s) in God Classes — start with index.tsx. — One of this dimension's main actionable groups (1 warning-level).
3. Resolve the 1 FileTooLong finding(s) in God Classes — start with index.tsx. — One of this dimension's main actionable groups (1 warning-level).
4. Enforce God Classes in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.

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

What it measures: 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 9.6 / 10 · rule-coverage 100% · ceiling Prevented

18 production modules (npm), 0 dependency cycle(s), 0 unstable depended-on module(s). Read from the build's own module declarations; 1 module(s) off the main sequence.

What to do

1. Resolve the 1 Off the main sequence finding(s) in Coupling. — One of this dimension's main actionable groups (1 warning-level).
2. Enforce Coupling in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.

Detailed fixes: d5_recommendation.md · top locations in Appendix A, every location in findings.md.

What it measures: Whether a class's methods are focused on a single responsibility.

Method: LCOM4 cohesion per production class with at least two methods: connected components of methods sharing state or calls, computed syntactically. Deterministic, not a proxy.

Coverage: Exhaustive · type-level: LCOM4 cohesion computed over every production class — the population is all types, not a name convention.

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

0 of 2 classes have LCOM4 above 3.

✓ On the Gold path — maintain.

Detailed fixes: d6_recommendation.md.

What it measures: Whether the test suite has a healthy mix of unit / integration / end-to-end tests.

Method: Test projects classified (Unit/Integration/BDD/E2E) from compiled metadata; test methods counted exhaustively across projects with placement-agnostic disk fallback. Deterministic.

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

167 test methods: 167 unit, 0 integration, 0 BDD, 0 e2e. The JavaScript/TypeScript suite contributes 167 `it`/`test` case(s) across 24 test file(s) declaring at least one; its tier split is read from package names and paths only.

✓ On the Gold path — maintain.

Detailed fixes: d9_recommendation.md.

What it measures: Whether the tests truly assert behaviour rather than just running the code.

Method: Per-test assertions, skips, and mock references analyzed via Roslyn; structured skip-reason tags (BUG:/ENV:) separate documented deferrals from debt. Deterministic.

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

0 skipped, 0 zero-assertion, no mocking-framework packages referenced (hand-written doubles or no mocking) across 167 tests.

✓ On the Gold path — maintain.

Detailed fixes: d10_recommendation.md.

What it measures: Whether the tests pass reliably, with no flakiness.

Method: Suite re-run N times within tiered wall-clock budgets (unit to e2e); tests failing non-deterministically across runs flagged; guarded tests retried when #if guards detected.

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

0 flaky across 1 measured tier(s). JavaScript/TypeScript (vitest via `yarn install --immutable --mode=skip-build` in demo/implementation/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/command-json-schema/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/command-zod/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/core/ (27 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/event-storage-adapter-dynamodb/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/event-storage-adapter-http/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/event-storage-adapter-in-memory/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/event-storage-adapter-postgres/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/event-storage-adapter-redux/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/event-type-json-schema/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/event-type-zod/ (0 tests); vitest via `yarn install --immutable --mode=skip-build` in packages/lib-dam/ (0 tests)): measured (0 flaky).

✓ On the Gold path — maintain.

Detailed fixes: d11_recommendation.md.

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 5.7 / 10 · rule-coverage 100% · ceiling Verified

26 outdated direct production npm dependency(ies) of 36 graded, 0 pinning defect(s), across 24 package.json (20 of them the product) and 1 committed lockfile(s). Development dependencies are deliberately not graded for currency: that grade is about what SHIPS. 6 direct dependency(ies) — production, development or optional — are marked DEPRECATED by their publisher (the registry's per-version mark, or the lockfile's copy of it when the registry could not be asked); deprecated transitive packages are listed but not charged. Whether any is UNMAINTAINED is not graded — the registry publishes no maintenance status, and release age does not stand in for one. Whether any is UNUSED is not graded either: that is a source question, and the frontend dependency lens (R8) answers it in this same run. Known CVEs in this dependency graph are D30's question, read from the manifest there.

What to do

1. Resolve the 27 Deprecated finding(s) in Dependency Hygiene — start with package.json (27). — One of this dimension's main actionable groups (27 warning-level).
2. Resolve the 20 Deprecated finding(s) in Dependency Hygiene — start with REDACTED (20). — One of this dimension's main actionable groups (20 recommendation-level).
3. Resolve the 5 Outdated (npm) finding(s) in Dependency Hygiene — start with package.json (5). — One of this dimension's main actionable groups (5 recommendation-level).
4. 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.

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.

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 36 shipped npm package(s) use a banned license. Licences were resolved from registry.npmjs.org over the 36 production dependency(ies) this repository's committed lockfile resolves, across 20 product package.json manifest(s). Its 446 `devDependencies` declaration(s) are excluded: a consumer installs none of them. ★ DEPTH: this is the DIRECT production set the lockfile resolves, NOT the transitive closure — only one of the four lock dialects this pass reads states a full graph, so a banned licence pulled in only by a dependency's OWN dependencies is outside this verdict, exactly as the JVM arm's declaration-site verdict is. ★ Each licence is the one the registry publishes for the package's CURRENT release rather than for the pinned version, which is the same caveat the Hex and RubyGems arms carry. This repository publishes itself under MIT, which is its own choice and is not judged here.

✓ On the Gold path — maintain.

Detailed fixes: d14_recommendation.md.

What it measures: Files that change often and are also complex — the riskiest hotspots.

Method: Per production file churn times cyclomatic complexity over a rolling window, computed from git and Roslyn/JS/Razor analysis. Exhaustive, deterministic per commit date.

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

No churn × complexity hotspots in the window.

✓ On the Gold path — maintain.

Detailed fixes: d15_recommendation.md.

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 9.9 / 10 · rule-coverage 100% · ceiling Prevented

5 deducted task-comment markers across 8634 LoC (0.0/KLoC) → score 9.9. Task comments only: this repository's language is read without a compiler, so D17's suppression, dead-code and commented-out-code arms did not run and this score counts fewer marker kinds than a .NET repository's would.

What to do

1. Resolve the 5 TodoComment finding(s) in Explicit Debt — start with CommandCard.tsx (2), adapter.ts, VisualizerContent.tsx. — One of this dimension's main actionable groups (5 warning-level).
2. Enforce Explicit Debt in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.

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

What it measures: Whether the project's documentation is clear, complete, and useful.

Method: Judged by language model at low temperature (0.0-0.1) on a deterministic doc sample (READMEs plus first 25 architecture docs), with two-pass stability filtering. Advisory, sampled.

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

The repository's root README and the packages directories all present: the root one is a great overview (logo, sponsors, event-sourcing focus), while each package README documents its own directory. The architecture/Docs markdown files are also well written with installation, usage, and an outline for every section named in them. This is a comprehensive documentation set for Castore event sourcing: the READMEs and architecture/Docs markdown files collectively cover every documented package (message-queue-adapter-sqs, core, lib-test-tools, dam, react-visualizer), with each one clearly stating what it documents (the adapter, collection of packages, test tools suite, data migration, React visualizer) plus installation, usage examples, and a detailed event-store reference. The outline is complete for every document shown. (9 of 25 sampled documents could not be assessed: 1 of 3 evaluation groups failed.)

✓ On the Gold path — maintain.

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

What it measures: Whether names — types, methods, variables — are clear and consistent.

Method: Judged by language model at low temperature (0.0-0.1) on a deterministic random symbol sample (fixed size, not exhaustive), with disclosed confidence band. Advisory, sampled.

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

0 naming inconsistencies across 0 sampled symbols.

✓ On the Gold path — maintain.

Detailed fixes: d21_recommendation.md.

What it measures: Whether the internal API surface is consistent and coherent.

Method: Judged by language model at low temperature over a sample of the public API surface (IsPackable or .Contracts types). Sampled, advisory; confidence discounted by model uncertainty.

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

2 API inconsistencies across 67 exposed types.

What to do

1. Resolve the 1 Redundant method names for distinct behaviors. `getAggregate` and… finding(s) in Internal API Consistency. — One of this dimension's main actionable groups (1 warning-level).
2. Resolve the 1 Inconsistent naming for synchronous operations. While `pushEvent` is… finding(s) in Internal API Consistency. — One of this dimension's main actionable groups (1 warning-level).

Detailed fixes: d22_recommendation.md · top locations in Appendix A, every location in findings.md.

What it measures: Whether domain types (IDs, enums, value objects) leak across bounded-context boundaries.

Method: Cross-context domain-type leakage via Roslyn structural classification (strongly-typed IDs / value objects) over every public surface. Exhaustive, deterministic, type-level aggregate-boundary check.

Coverage: Bounded contexts derived from NAMESPACE prefix (or graph-inferred where available); cross-boundary domain-type leakage then checked exhaustively over every public member of every type.

Maturity: Documented → Verified → Prevented · effective 9.3 / 10 · rule-coverage 100% · ceiling Verified

4 domain type(s) cross context boundaries across 21 contexts.

What to do

1. Resolve the 1 Cross-context type Message (core → message-bus-adapter-event-bridge-s3) finding(s) in Boundary Type-Coupling — start with adapter.ts. — One of this dimension's main actionable groups (1 warning-level).
2. Resolve the 1 Cross-context type Message (core → message-bus-adapter-event-bridge) finding(s) in Boundary Type-Coupling — start with adapter.ts. — One of this dimension's main actionable groups (1 warning-level).
3. Resolve the 1 Cross-context type Message (core → message-queue-adapter-sqs-s3) finding(s) in Boundary Type-Coupling — start with adapter.ts. — One of this dimension's main actionable groups (1 warning-level).
4. Enforce Boundary Type-Coupling in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Verified — provenance only; does not change the score.

Detailed fixes: d23_recommendation.md · top locations in Appendix A, every location in findings.md.

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 20 build units (npm) flagged as possibly oversized/incoherent.

✓ On the Gold path — maintain.

Detailed fixes: d26_recommendation.md.

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

Method: Secret scan via TWO gitleaks detect passes in an isolated checkout — the full git history, then a second --no-git pass over the working tree as it stands — merged and de-duplicated by (rule, file, line); each match flagged High. Both invocations are recorded in the audit trail. Exhaustive; when the tool is absent, or when its output cannot be parsed into the expected shape, the dimension is WITHHELD as an explicit measurement gap on our side — unscored and excluded from the lens, never a hedged middling score.

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

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

✓ On the Gold path — maintain.

Detailed fixes: d28_recommendation.md.

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 0.0 / 10 · rule-coverage 100% · ceiling Documented

66 finding(s): 0 critical, 62 high, 4 medium, 0 low. 31 unpinned-GitHub-Actions row(s) are reported here but scored by D36 (supply-chain provenance), which measures that posture as `pinned_actions` — one pinning decision is charged once, not once per lens. semgrep hit a parse error in 1 file(s) — `packages/event-storage-adapter-postgres/src/adapter.ts` (line 30) — so no absence of findings in the named regions is evidence of anything; rows reported elsewhere in those files are real. Fix the syntax error (or exclude the file deliberately) and re-scan to cover them. Separately, one or more rules could not re-parse an embedded snippet in 1 file(s) (e.g. a workflow `run:` block read as shell). Those files WERE scanned and their other rows are unaffected; only those rules' view of those snippets is missing.

+ 1 more group(s) — more in Appendix A; the complete list is findings.md.

What to do

1. Resolve the 23 REDACTED finding(s) in Static Analysis (SAST) — start with REDACTED (19), REDACTED, REDACTED. — One of this dimension's main actionable groups (23 issue-level).
2. Resolve the 5 REDACTED finding(s) charged to Static Analysis (SAST) — the other 31 are reported here at file:line but scored by D36 (supply-chain provenance), which charges them once. — One of this dimension's main actionable groups (36 issue-level, 5 of them charged here).
3. Resolve the 1 REDACTED finding(s) in Static Analysis (SAST) — start with REDACTED. — One of this dimension's main actionable groups (1 issue-level).

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

What it measures: Whether any dependency has a known published vulnerability (CVE), direct or transitive, in ANY ecosystem the repository declares — Dart pub, Elixir and Erlang via Hex, Go modules, Java and Kotlin via Maven/Gradle, JavaScript/npm, .NET/NuGet, PHP/Composer, Python/PyPI, RubyGems, Rust/Cargo and Swift.

Method: Dependency-CVE scan across every ecosystem the repository declares, scored ONCE. Three sources are unioned and deduplicated by advisory identity (rule id + alias closure, CVE<->GHSA) scoped to package+version, keeping the worst severity: `osv-scanner --recursive` over osv.dev for Dart pub, Elixir/Hex (and Erlang, whose `rebar.lock` syft first converts to a CycloneDX SBOM the scanner reads, with rows attributed back to the lock), Go, Java and Kotlin via Maven/Gradle (and Scala, whose sbt build's pinned direct declarations are written into a CycloneDX SBOM the scanner reads, with rows attributed back to the build file), npm, PHP/Composer, Python/PyPI, RubyGems, Rust/Cargo and Swift; `trivy fs --scanners vuln` for npm lockfiles; and `dotnet list package --vulnerable --include-transitive` for NuGet (with per-advisory collapse of the project x target-framework fan-out), plus a DECLARED-dependency arm that resolves a published gem's gemspec against rubygems.org where no Gemfile.lock is committed. `SeverityScore(c,h,m,l, normalizer 8.0)`. NotApplicable only when NO ecosystem is readable; if any applicable ecosystem could not be scanned the findings are REPORTED and the score is withheld. Supersedes the npm and OSV arms, retired 2026-09-05.

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

94 finding(s): 11 critical, 50 high, 25 medium, 8 low.

What to do

1. Resolve the 49 High CVE finding(s) in Dependency Vulnerabilities — start with REDACTED (49). — One of this dimension's main actionable groups (49 issue-level).
2. Resolve the 11 Critical CVE finding(s) in Dependency Vulnerabilities — start with REDACTED (11). — One of this dimension's main actionable groups (11 issue-level).
3. Resolve the 1 High vulnerability finding(s) in Dependency Vulnerabilities — start with REDACTED. — One of this dimension's main actionable groups (1 issue-level).

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

What it measures: Whether anyone still has living knowledge of each file, or it has been orphaned — last understood long ago by someone now gone quiet. The sibling of the bus factor: D16 asks who owns it, D34 asks whether anyone still knows it.

Method: File orphaning as total living-knowledge decay below one focused-commit's worth within a year, computed per-file from the D16 decay model. Exhaustive, deterministic over fixed history.

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

27 of 27 significant source file(s) are orphaned — their living knowledge has decayed to nothing, so no one currently understands them. The largest is packages/event-storage-adapter-postgres/src/adapter.ts. Counted over 27 of the 215 production source files in this repository: the rest are under the ~2,400-byte size floor this dimension measures over.

What to do

1. Resolve the 27 Orphaned file finding(s) in Knowledge Freshness — start with adapter.ts (10), singleTableAdapter.ts, legacyAdapter.ts. — One of this dimension's main actionable groups (27 recommendation-level).
2. Resolve the 1 Dormant codebase finding(s) in Knowledge Freshness. — One of this dimension's main actionable groups (1 recommendation-level).

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

What it measures: Whether files that change together actually belong together — pairs that repeatedly co-change in git history despite having no explicit code dependency, surfacing the hidden/logical coupling (and boundaries in the wrong place) a static scan can't see.

Method: Pairwise co-occurrence over the per-commit file sets in git history (production source only — tests and generated dropped): Degree-of-Coupling = shared ÷ min individual revisions, reported above noise floors (each file ≥10 revisions, ≥5 shared commits, ≥50% strength); sweeping commits excluded. Deterministic over fixed history.

Coverage: Population: PRODUCTION source files only — test and generated files are dropped before pairing, so a class co-changing with its own test (trivially ~100%) can't drown the real production↔production coupling. Pairs ranked by Degree-of-Coupling. A non-source file is never a coupling PARTICIPANT either: documentation, schemas, config and data files are dropped with the rest, so a code↔docs pair — a command and the reference page that restates it — is not reported however strongly the two co-change; nor is coupling that runs THROUGH a build step or config file.

Maturity: Documented → Verified → Prevented · effective 9.8 / 10 · rule-coverage 100% · ceiling Documented

Strongest change-coupling: adapter.ts↔adapter.ts 75%; legacyAdapter.ts↔adapter.ts 60%; legacyAdapter.ts↔adapter.ts 56%

What to do

1. Resolve the 1 Change coupling clique finding(s) in Change Coupling — start with legacyAdapter.ts. — One of this dimension's main actionable groups (1 warning-level).

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

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).

+ 4 more group(s) — more in Appendix A; the complete list is findings.md.

What to do

1. Resolve the 1 REDACTED finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 warning-level).
2. Resolve the 1 REDACTED finding(s) in Supply-chain Provenance & Signing — start with REDACTED. — One of this dimension's main actionable groups (1 warning-level).
3. Resolve the 1 REDACTED finding(s) in Supply-chain Provenance & Signing — start with REDACTED. — One of this dimension's main actionable groups (1 warning-level).

Detailed fixes: d36_recommendation.md · top locations in Appendix A, every location in findings.md.

What it measures: Whether any dependency the repository declares is published as MALICIOUS rather than merely vulnerable — a package that is an attacker's work, in any ecosystem osv-scanner reads. Scored apart from D30 because the answer is binary: there is no safe version to upgrade to, and the fix is to remove the package and rotate every credential it could have read.

Method: The same dependency scan D30 reads, partitioned on the scanner's own classification rather than rescanned: a row is MALICIOUS when its id is in the `MAL-` space (the ossf/malicious-packages feed) OR its `database_specific.cwe_ids` carries `CWE-506` ("Embedded Malicious Code"). Both channels are structural; the summary text is deliberately NOT read, because a malicious-package record whose summary says only "Critical severity vulnerability" is a real shape ([GHSA redacted]) and a text matcher misses it. Scored BINARY: any surviving row is 0, whatever its severity and however many CVEs sit beside it — a hostile dependency is not a quantity. Applicability and degradation are D30's: NotApplicable only when no ecosystem is readable, and an unscannable ecosystem degrades rather than reading clean. SCORED, not informational.

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

No dependency in any ecosystem this repository declares is published as malicious.

✓ On the Gold path — maintain.

Detailed fixes: d43_recommendation.md.

What it measures: Whether anyone still ships security patches for the platform this repository RUNS ON — the runtime it pins and the framework majors its own constraints hold it to. Separate from D12 because the question differs: a current Django on an end-of-life Python is perfectly up to date and completely unsupported, and the fix is a migration rather than a version bump. What the repository says it merely SUPPORTS is never charged.

Method: End-of-life PLATFORM read from the repository's own declarations and graded against a FROZEN, dated table of vendor support dates — no network, no feed, no API, so this dimension answers identically inside a closed scan fence. Two subjects: a RUNTIME the project pins (a single or all-end-of-life TargetFramework, a .nvmrc or .python-version, a requires-python CAP) and a FRAMEWORK major a dependency constraint cannot move off (a caret, tilde or exact version; `vue@^2.7.16` pins Vue 2). A FLOOR is deliberately never charged — `requires-python = ">=3.8"` states what a package SUPPORTS, not what it runs on — and a multi-target project is charged only when EVERY target is out of support. Runtime 4.0/product capped 8.0, framework 1.5 capped 4.5. The table is safe to freeze because a statement about support that ended in the past cannot become false: it loses recall as it ages, never precision, and a test asserts every entry predates the freeze date. Disjoint from D31 (a container image's OS layer) and D29 (the toolchain a CI workflow installs). Abstains when the repository declares no platform this pass reads — never scores it clean.

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

0 end-of-life runtime(s) and 0 end-of-life framework(s), read from 2 platform declaration(s) and 0 dependency declaration(s). This dimension reads what the repository says about ITSELF — a pinned target framework, a version file, a capped requires-python, a Rust toolchain pin, a framework major a constraint cannot move off. A FLOOR is deliberately never charged: `requires-python = ">=3.8"` states what the package SUPPORTS, not what it runs on, and a well-maintained library declares exactly that while running its own CI on a current release. The end-of-life facts are FROZEN and dated, so this dimension needs no network and answers identically inside a closed scan fence; as the table ages it loses recall and never precision, because a statement about support that ended in the past cannot become false. The OS layer of a container image is D31's question and the toolchain a CI workflow installs is D29's; this row is neither.

✓ On the Gold path — maintain.

Detailed fixes: d44_recommendation.md.

Other · Architecture — How the codebase splits by code ROLE — domain, application, infrastructure, test, generated. The significance map behind the knowledge/coupling weighting, and a DDD signal in its own right: a thin domain core under fat infrastructure is the anemic-domain smell, quantified. How each file's role is decided, because the split is only as good as that: a generated name or a build-output tree makes it Generated, a test project makes it Test, and otherwise the file's NAMESPACE and PATH words are matched against fixed vocabularies in a fixed ORDER — domain, then infrastructure, then application — so a file whose words hit two layers is counted under the earlier one. A production file matching none of them counts as application, so that share reads 'application or unclassified' rather than a measured application layer. Roles come from naming convention, never from what the code does. On this repository the split was taken from the source tree on disk rather than from a loaded .NET workspace, so a file's role is decided by its PATH segments alone — no declared namespace was available to add to the evidence — and generated output is excluded from the census entirely rather than counted as a generated share.

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

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

What to do

• The domain core is a small share of production code, but most of the rest matched no layer vocabulary at all — so this is not yet an anemic-domain finding. The namespace/path convention could not place that code, which makes the composition above a statement about the naming, not about the design. Name the layers (or check that the repository's conventions differ from the ones this check knows) before reading a thin domain into it.

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

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

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

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

Other · Architecture — Whether interfaces stay focused rather than fat — the Interface-Segregation principle (SOLID 'I').

Method: Roslyn scan: public interface declared-member counts (accessors fold into their property/event); fat-interface threshold (over 15 declared members) flagged per type. Each finding also reports the distinct-OPERATION count — members counted by name, so an overload group counts once — which decides whether it states the caller-side ISP harm or the implementer-side burden of an overload set. TypeScript: exported interfaces that declare behaviour, counted over their REQUIRED operations (method signatures and function-typed properties with no `?`, once per signature) — data-shape interfaces and ambient .d.ts declarations are outside the population; JavaScript declares no interfaces and is not applicable. Deterministic, type-level.

Other · Architecture — Whether production projects stay free of references to test projects — tests may depend on production, never the reverse.

Method: Csproj graph: each production project checked for references to test projects (identified by test-framework presence, not name). Zero violations is clean. Deterministic.

Other · Code Health — Unreviewed-generation residue in this repository's JavaScript/TypeScript: functions whose whole body still throws a "not implemented" error, and placeholder text (lorem ipsum, changeme/replace_me…) left in strings and JSX of 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.

Other · Code Health — Unfinished work detected by code SHAPE, not keywords, in this repository's JavaScript/TypeScript: functions that only throw a "not implemented" error, functions that take inputs and return a constant or do nothing, async functions that never await, dead `if (false)` branches, and skeleton classes most of whose methods are holes.

Method: Roslyn syntax scan: incompleteness by code shape (constant-returning methods, async-never-await, #if false branches, guards that return what the code already falls through to, tests an earlier guard already decided, comparisons against NaN, skeleton types), not keyword-gated. Deterministic, code-shape heuristic.

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 a build/run (quick start) section to the root README — the first thing a newcomer needs.
• Explain in the README how to run the tests. Add a section called Testing to the README in the repository's top folder, saying how to run the test suite.
• Add an 'Architecture' / 'How it works' section to the root README — the high-level shape.
• Add a README to the 5 of 23 project(s) that lack one — worth up to 0.4 pts.

Maturity · Maturity — Whether key decisions (ADRs) and the high-level shape (C4/diagrams) are written down.

Method: Filesystem scan: ADR folder/naming conventions or content, plus Mermaid/PlantUML/C4/architecture.md discovery. Exhaustive, deterministic.

• No Architecture Decision Records found — no conventional ADR directory, no numbered `NNNN-title` documents in any markup this check reads, and nothing ADR-shaped by content. Design rationale recorded elsewhere (a design-notes tree, a mailing list, pull-request discussion) is not visible to this check and is not re-findable per decision, so a future maintainer cannot ask why one choice was made and get an answer.

What to do

• Record your significant design decisions. Write one short document per decision, giving its date, the situation, the decision and its consequences, and keep them together with your other design documents. A docs/adr folder with each file named by number and title is the easiest place to find them.

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.

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.

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.

Readiness · Readiness — For a library: a deliberate (small) public API surface and explicit semantic versioning so consumers can depend on it safely.

Method: Roslyn scan: public API surface area and semantic-versioning markers (SemVer attributes, changelog entries) for libraries; off .NET, a library is the ecosystem's publication act (an npm package that is not private and names an entry point, a PyPI distribution with a build system, a Rust library crate, a Maven/Gradle module that publishes, a Go module with no package main, a gemspec, a Composer library, a SwiftPM library product, a pub.dev or Hex package), its surface is the share of types the language model records as public (Rust, Swift, Java, Kotlin, Go, Dart; not measured where the model records no type visibility or, as in TypeScript, only module-level export), and its version is read from the manifest, a semver CHANGELOG, release tooling or semver git tags. Exhaustive, deterministic.

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 CodeQL's javascript-typescript pack, `semgrep --config=p/typescript`, or eslint-plugin-security as a CI step. What was searched, so you can tell an absence from a miss: the 8681 CI workflow file(s) in this repository, and the scanner and linter configuration checked in beside them. A scan that runs outside CI, one configured in your forge's web UI rather than in a committed file, or a tool whose name is none of those this check carries, is not seen — if that is your case the row is wrong, and saying so is more useful than adding a second scanner.

What to do

• Add a SAST step to CI running what this repository's stack ships: CodeQL's javascript-typescript pack, `semgrep --config=p/typescript`, or eslint-plugin-security — 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.

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.

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.

Readiness · Performance — Whether asynchronous code stays responsive — it avoids sync-over-async blocking (a .NET .Wait()/.GetAwaiter().GetResult(), a time.sleep or blocking HTTP call inside a Python coroutine, a *Sync call inside an async JavaScript function, block_on inside a Rust async fn, runBlocking inside a Kotlin suspend function, block() inside a Reactor publisher) that stalls a thread or event loop and risks deadlock, and, where the code is a reusable library on .NET, awaits with ConfigureAwait(false) so it never captures and stalls its caller's context.

Method: Production-source scan: sync-over-async blocking counted everywhere — .Wait()/.GetAwaiter().GetResult() in .NET; off .NET, read from the language model, a blocking call inside an async function (Python, TS/JS, Rust, Kotlin, Swift, Dart) or inside a Java method returning a Reactor Mono/Flux or a Scala method returning a Future or effect — and, for a .NET library with ≥5 awaits, the share of awaits using ConfigureAwait(false). Deterministic, syntax/text detection.

React / JS · Code Health — How much of the frontend is typed TypeScript vs untyped JavaScript.

Method: Frontend file inventory: the share of typed TypeScript vs untyped JavaScript across the source tree. Deterministic, exhaustive over frontend files.

React / JS · Code Health — Near-exact copy-pasted blocks of substantial extent across the frontend (the D4 clone algorithm over JS/TS tokens, D-386): a block is reported only where its copies still agree on most of their own identifiers and literals, or were renamed as they were pasted but kept most of their constants, and where the copies carry enough code to stand on their own or the copied extent reaches 30 lines — so a re-implementation sharing neither names nor values, and a small pasted declaration, are both found and deliberately not reported, and a clean R10 is not a claim that nothing was copied.

Method: Near-exact copy-pasted blocks of substantial extent across the frontend (the D4 clone algorithm run over JS/TS tokens). Masking finds the candidates; a block is reported when its copies still agree on most of their own identifiers and literals, or when a renamed copy still agrees on most of its constants, AND the copies carry enough code to stand on their own — or when the copied extent reaches 30 lines. So a re-implementation sharing neither names nor values, and a small pasted declaration, are deliberately not counted. Deterministic.

• 13 of the duplicated blocks reported below have copies in at least two of the sibling directories command-json-schema, command-zod, event-storage-adapter-dynamodb, event-storage-adapter-in-memory, event-storage-adapter-postgres, event-storage-adapter-redux (+7 more sibling(s) not listed) under packages/. That concentration is one structural fact, not 13 local ones: the siblings replicate behaviour none of them owns, which is the shape of a missing shared module — a common library every sibling imports — rather than 13 separate extractions. Check first whether the siblings are deliberately standalone deliverables (scaffold templates, demo apps that must stay copy-pasteable); where they are, the duplication is the design and the per-block rows are the ones to act on. — packages/event-storage-adapter-in-memory/src/adapter.ts:16
• packages/event-storage-adapter-dynamodb/src/legacyAdapter.ts:10 · packages/event-storage-adapter-dynamodb/src/singleTableAdapter.ts:10 — these 2 files are line-for-line copies of one another — 211 lines are identical, in the same order, in every one of them — so this is one fact about the file set, not a block to extract. An edit made to one file and not the others changes behaviour silently, which is the failure a wholesale copy guarantees. Pick one file as the single source and derive the others from it (re-export it, spread it into the local overrides each variant genuinely needs, or generate the copies at build time) — the few lines that differ between the files are exactly the part each variant should still own. Check first whether the copies are deliberately standalone deliverables (a translation file seeded from its sibling and waiting to be translated); where they are, the duplication is the design, and the honest move is to mark the seeded file as untranslated rather than to let it pass as done. — packages/event-storage-adapter-dynamodb/src/legacyAdapter.ts:10
• packages/event-storage-adapter-in-memory/src/adapter.ts:16 · packages/event-storage-adapter-redux/src/adapter.ts:24 — the two spans are one implementation copied and then locally edited — 1142 tokens are still identical, in the same order in both files, with only local edits between them. The copies have already begun to drift, which is this row's finding: an edit made to one and not the other changes behaviour silently. Diff the two spans first to learn what genuinely differs, then extract the shared core into one module both sites use, passing the differences in as parameters — or, if one copy exists only because the other could not be imported from its context, make one of them the single source the other is generated or re-exported from. If one copy is no longer reachable, delete it rather than letting it shadow the live one. — packages/event-storage-adapter-in-memory/src/adapter.ts:16
• packages/message-bus-adapter-event-bridge-s3/src/adapter.ts:23 · packages/message-queue-adapter-sqs-s3/src/adapter.ts:21 — the two spans are one implementation copied and then locally edited — 872 tokens are still identical, in the same order in both files, with only local edits between them. The copies have already begun to drift, which is this row's finding: an edit made to one and not the other changes behaviour silently. Diff the two spans first to learn what genuinely differs, then extract the shared core into one module both sites use, passing the differences in as parameters — or, if one copy exists only because the other could not be imported from its context, make one of them the single source the other is generated or re-exported from. If one copy is no longer reachable, delete it rather than letting it shadow the live one. — packages/message-bus-adapter-event-bridge-s3/src/adapter.ts:23
• packages/command-json-schema/src/command.ts:10 · packages/command-zod/src/command.ts:14 — the 2 copies are spread across 2 files, and the SHAPE of this repetition could not be determined. It is not a run of declarations, a listing, a declaration header, a type body or a slice through a construct — and it was not measured as a run of executable statements either, so this row cannot tell you whether a function can stand where these lines are. Read the two spans before acting, because the move is opposite in the two cases. Where they are statements, the ordinary answer holds: give the shared part one home and call it from each site. Where they turn out to be declarations, a literal's entries, or the cases of an enumeration, there is no call site to call anything from, and collapsing them would delete what each copy pins — a shared base type, a generated set, or one exported constant each site refers to is the move instead, and sometimes the honest answer is that there is nothing to extract at all. Reported because the copies drift apart the first time only one of them is edited, which is true whichever of those they are. — packages/command-json-schema/src/command.ts:10
• packages/core/src/messaging/channel/aggregateExistsMessageChannel.ts:1 · packages/core/src/messaging/channel/notificationMessageChannel.ts:1 — these 2 files are line-for-line copies of one another — 63 lines are identical, in the same order, in every one of them — so this is one fact about the file set, not a block to extract. An edit made to one file and not the others changes behaviour silently, which is the failure a wholesale copy guarantees. Pick one file as the single source and derive the others from it (re-export it, spread it into the local overrides each variant genuinely needs, or generate the copies at build time) — the few lines that differ between the files are exactly the part each variant should still own. Check first whether the copies are deliberately standalone deliverables (a translation file seeded from its sibling and waiting to be translated); where they are, the duplication is the design, and the honest move is to mark the seeded file as untranslated rather than to let it pass as done. — packages/core/src/messaging/channel/aggregateExistsMessageChannel.ts:1
• packages/event-storage-adapter-postgres/src/adapter.ts:192 · packages/event-storage-adapter-postgres/src/adapter.ts:350 — the two spans are one implementation copied and then locally edited — 215 tokens are still identical, in the same order in both spans, with only local edits between them. The copies have already begun to drift, which is this row's finding: an edit made to one and not the other changes behaviour silently. Diff the two spans first to learn what genuinely differs, then extract the shared core into one module both sites use, passing the differences in as parameters — or, if one copy exists only because the other could not be imported from its context, make one of them the single source the other is generated or re-exported from. If one copy is no longer reachable, delete it rather than letting it shadow the live one. — packages/event-storage-adapter-postgres/src/adapter.ts:192
• packages/core/src/messaging/channel/aggregateExistsMessageChannel.ts:52 · packages/core/src/messaging/channel/notificationMessageChannel.ts:52 · packages/core/src/messaging/channel/stateCarryingMessageChannel.ts:64 — the 3 copies are spread across 3 files, and the CITED SPAN is not a self-contained block — it runs from inside one construct into the next (the tail of a branch plus the head of the following one, a run of switch arms, the end of a declaration plus the list that follows it) rather than covering a whole unit. So do not lift these lines literally: no call can be substituted for a half-open construct. Extract the enclosing repeated UNIT instead — the whole function, component or branch these lines sit in — and where the repetition IS the construct (a run of switch arms, a stack of near-identical declarations) replace it with one table or registry looked up by key rather than a helper each arm calls. The copies still drift apart the first time only one of them is edited, which is why this is reported. — packages/core/src/messaging/channel/aggregateExistsMessageChannel.ts:52
• packages/event-storage-adapter-redux/src/adapter.ts:267 · packages/event-storage-adapter-redux/src/hooks/useAggregateIds.ts:58 — the 2 copies are spread across 2 directories, so the shared home is a decision rather than an obvious spot: check first whether one of them already owns this behaviour, and otherwise put the extracted module somewhere all of the sites already reach rather than making one of them depend on another. — packages/event-storage-adapter-redux/src/adapter.ts:267
• packages/event-storage-adapter-in-memory/src/utils/parseAppliedListAggregateIdsOptions.ts:1 · packages/event-storage-adapter-redux/src/utils/parseAppliedListAggregateIdsOptions.ts:1 — the 2 copies are spread across 2 files, and the SHAPE of this repetition could not be determined. It is not a run of declarations, a listing, a declaration header, a type body or a slice through a construct — and it was not measured as a run of executable statements either, so this row cannot tell you whether a function can stand where these lines are. Read the two spans before acting, because the move is opposite in the two cases. Where they are statements, the ordinary answer holds: give the shared part one home and call it from each site. Where they turn out to be declarations, a literal's entries, or the cases of an enumeration, there is no call site to call anything from, and collapsing them would delete what each copy pins — a shared base type, a generated set, or one exported constant each site refers to is the move instead, and sometimes the honest answer is that there is nothing to extract at all. Reported because the copies drift apart the first time only one of them is edited, which is true whichever of those they are. — packages/event-storage-adapter-in-memory/src/utils/parseAppliedListAggregateIdsOptions.ts:1
• packages/event-type-json-schema/src/eventType.ts:5 · packages/event-type-zod/src/eventType.ts:9 — the 2 copies are spread across 2 files, and each CITED SPAN is a SPECIALISATION DECLARATION — a type whose `extends` clause names a base and whose body hands that base its own values through `super(…)`. The shared module this dimension usually asks you to extract already exists: it is that base, every one of these sites already reaches it, and the `super(…)` call this row matched on is where each site passes its differences in. So do not read this as an extract-a-helper row — there is no missing helper, and what is left at each site is the declaration of one distinct specialisation, which cannot be deleted without deleting the thing it declares. Read what actually differs between the spans, because two different answers follow. Where the sites differ only in the values they hand the base — a type argument, a service, an alias, a cache — the repetition is a TEMPLATE, and the only moves that collapse it are to generate these declarations from the set they enumerate or to replace the repeated construction with one factory each site calls with its own values; where that set is the point, each site pinning one distinct thing, the repetition IS the enumeration and there is nothing to remove. Where instead a span carries logic OUTSIDE the delegation that is the same at every site, that logic is the part to move, and its home is the base type rather than a new module. Reported because the copies still drift apart the first time only one of them is edited. — packages/event-type-json-schema/src/eventType.ts:5
• packages/message-bus-adapter-in-memory/src/adapter.ts:38 · packages/message-queue-adapter-in-memory/src/adapter.ts:72 — the two spans are one implementation copied and then locally edited — 182 tokens are still identical, in the same order in both files, with only local edits between them. The copies have already begun to drift, which is this row's finding: an edit made to one and not the other changes behaviour silently. Diff the two spans first to learn what genuinely differs, then extract the shared core into one module both sites use, passing the differences in as parameters — or, if one copy exists only because the other could not be imported from its context, make one of them the single source the other is generated or re-exported from. If one copy is no longer reachable, delete it rather than letting it shadow the live one. — packages/message-bus-adapter-in-memory/src/adapter.ts:38
• packages/event-storage-adapter-dynamodb/src/error.ts:4 · packages/event-storage-adapter-in-memory/src/error.ts:4 · packages/event-storage-adapter-postgres/src/error.ts:2 · packages/event-storage-adapter-redux/src/errors/reduxStoreEventAlreadyExists.ts:4 — the 4 copies are spread across 4 files, and the CITED SPAN is not a self-contained block — it runs from inside one construct into the next (the tail of a branch plus the head of the following one, a run of switch arms, the end of a declaration plus the list that follows it) rather than covering a whole unit. So do not lift these lines literally: no call can be substituted for a half-open construct. Extract the enclosing repeated UNIT instead — the whole function, component or branch these lines sit in — and where the repetition IS the construct (a run of switch arms, a stack of near-identical declarations) replace it with one table or registry looked up by key rather than a helper each arm calls. The copies still drift apart the first time only one of them is edited, which is why this is reported. — packages/event-storage-adapter-dynamodb/src/error.ts:4
• packages/message-bus-adapter-event-bridge/src/message.ts:19 · packages/message-bus-adapter-event-bridge/src/message.ts:58 — all 2 copies are in the same file, and the SHAPE of this repetition could not be determined. It is not a run of declarations, a listing, a declaration header, a type body or a slice through a construct — and it was not measured as a run of executable statements either, so this row cannot tell you whether a function can stand where these lines are. Read the two spans before acting, because the move is opposite in the two cases. Where they are statements, the ordinary answer holds: give the shared part one home and call it from each site. Where they turn out to be declarations, a literal's entries, or the cases of an enumeration, there is no call site to call anything from, and collapsing them would delete what each copy pins — a shared base type, a generated set, or one exported constant each site refers to is the move instead, and sometimes the honest answer is that there is nothing to extract at all. Reported because the copies drift apart the first time only one of them is edited, which is true whichever of those they are. — packages/message-bus-adapter-event-bridge/src/message.ts:19
• packages/event-storage-adapter-dynamodb/src/error.ts:15 · packages/event-storage-adapter-in-memory/src/error.ts:15 · packages/event-storage-adapter-redux/src/errors/reduxStoreEventAlreadyExists.ts:15 — the 3 copies are spread across 3 directories, so the shared home is a decision rather than an obvious spot: check first whether one of them already owns this behaviour, and otherwise put the extracted module somewhere all of the sites already reach rather than making one of them depend on another. There is one copy in each of 3 separate files rather than several in one place, so check first whether these are sibling modules that each declare their own version of one shape — one per entity, per provider, per language. Where they are, no single extracted module collapses them: each module still has to be written, and what recurs is the TEMPLATE. The moves that do collapse a template are to generate these modules from the set they enumerate, or to replace the repeated construction with one factory each site calls with its own values — and where the set is the point, each module pinning one distinct thing, the repetition IS the enumeration and there is nothing to delete. — packages/event-storage-adapter-dynamodb/src/error.ts:15
• packages/message-bus-adapter-event-bridge-s3/src/message.ts:12 · packages/message-bus-adapter-event-bridge/src/message.ts:113 — the 2 copies are spread across 2 files, and the SHAPE of this repetition could not be determined. It is not a run of declarations, a listing, a declaration header, a type body or a slice through a construct — and it was not measured as a run of executable statements either, so this row cannot tell you whether a function can stand where these lines are. Read the two spans before acting, because the move is opposite in the two cases. Where they are statements, the ordinary answer holds: give the shared part one home and call it from each site. Where they turn out to be declarations, a literal's entries, or the cases of an enumeration, there is no call site to call anything from, and collapsing them would delete what each copy pins — a shared base type, a generated set, or one exported constant each site refers to is the move instead, and sometimes the honest answer is that there is nothing to extract at all. Reported because the copies drift apart the first time only one of them is edited, which is true whichever of those they are. — packages/message-bus-adapter-event-bridge-s3/src/message.ts:12
• packages/message-bus-adapter-in-memory/src/utils.ts:55 · packages/message-queue-adapter-in-memory/src/utils.ts:1 — the 2 copies are spread across 2 files, and the CITED SPAN is not a self-contained block — it runs from inside one construct into the next (the tail of a branch plus the head of the following one, a run of switch arms, the end of a declaration plus the list that follows it) rather than covering a whole unit. So do not lift these lines literally: no call can be substituted for a half-open construct. Extract the enclosing repeated UNIT instead — the whole function, component or branch these lines sit in — and where the repetition IS the construct (a run of switch arms, a stack of near-identical declarations) replace it with one table or registry looked up by key rather than a helper each arm calls. The copies still drift apart the first time only one of them is edited, which is why this is reported. — packages/message-bus-adapter-in-memory/src/utils.ts:55
• packages/event-storage-adapter-dynamodb/src/utils/parseAppliedListAggregateIdsOptions.ts:15 · packages/event-storage-adapter-in-memory/src/utils/parseAppliedListAggregateIdsOptions.ts:18 · packages/event-storage-adapter-redux/src/utils/parseAppliedListAggregateIdsOptions.ts:18 — the 3 copies are spread across 3 files, and the CITED SPAN is not a self-contained block — it runs from inside one construct into the next (the tail of a branch plus the head of the following one, a run of switch arms, the end of a declaration plus the list that follows it) rather than covering a whole unit. So do not lift these lines literally: no call can be substituted for a half-open construct. Extract the enclosing repeated UNIT instead — the whole function, component or branch these lines sit in — and where the repetition IS the construct (a run of switch arms, a stack of near-identical declarations) replace it with one table or registry looked up by key rather than a helper each arm calls. The copies still drift apart the first time only one of them is edited, which is why this is reported. — packages/event-storage-adapter-dynamodb/src/utils/parseAppliedListAggregateIdsOptions.ts:15
• packages/event-storage-adapter-dynamodb/src/legacyAdapter.ts:137 · packages/event-storage-adapter-dynamodb/src/singleTableAdapter.ts:148 · packages/message-bus-adapter-event-bridge/src/adapter.ts:50 — the 3 copies are spread across 2 directories, so the shared home is a decision rather than an obvious spot: check first whether one of them already owns this behaviour, and otherwise put the extracted module somewhere all of the sites already reach rather than making one of them depend on another. There is one copy in each of 3 separate files rather than several in one place, so check first whether these are sibling modules that each declare their own version of one shape — one per entity, per provider, per language. Where they are, no single extracted module collapses them: each module still has to be written, and what recurs is the TEMPLATE. The moves that do collapse a template are to generate these modules from the set they enumerate, or to replace the repeated construction with one factory each site calls with its own values — and where the set is the point, each module pinning one distinct thing, the repetition IS the enumeration and there is nothing to delete. — packages/event-storage-adapter-dynamodb/src/legacyAdapter.ts:137
• packages/event-storage-adapter-redux/src/hooks/useAggregateEvents.ts:19 · packages/event-storage-adapter-redux/src/hooks/useAggregateIds.ts:25 — the 2 copies are spread across 2 files, and the CITED SPAN is not a self-contained block — it runs from inside one construct into the next (the tail of a branch plus the head of the following one, a run of switch arms, the end of a declaration plus the list that follows it) rather than covering a whole unit. So do not lift these lines literally: no call can be substituted for a half-open construct. Extract the enclosing repeated UNIT instead — the whole function, component or branch these lines sit in — and where the repetition IS the construct (a run of switch arms, a stack of near-identical declarations) replace it with one table or registry looked up by key rather than a helper each arm calls. The copies still drift apart the first time only one of them is edited, which is why this is reported. — packages/event-storage-adapter-redux/src/hooks/useAggregateEvents.ts:19
• packages/core/src/connectedEventStore/connectedEventStore.ts:22 · packages/core/src/eventStore/eventStore.ts:25 — the 2 copies are spread across 2 files, and the CITED SPAN is a DECLARATION HEADER — the name, parameter list with its constraints and defaults, and base-type clause of a declaration — rather than statements inside a body. A header cannot be lifted into a helper: there is no expression position for a call to stand in, and the copies are frequently required to match, because one declaration passes its parameters straight through to the other. So the move is not extraction. Give the repeated pieces names — factor a long constraint or base-type expression into one named type both declarations refer to — and where the headers must stay identical, derive one from the other (a shared base declaration, or a single alias that spells the parameter set once) so that changing it once changes both. Where the language offers neither, treat the two as a pair that must be edited together: they drift apart the first time only one of them is changed, which is why this is reported. — packages/core/src/connectedEventStore/connectedEventStore.ts:22
• commonConfiguration/babel.config.js:71 · commonConfiguration/babel.config.js:78 · commonConfiguration/babel.config.js:85 — all 3 copies are in the same file, so extract the block into one function there and call it from every one of those sites — resolving only two of them leaves the rest to drift apart the first time one is edited. — commonConfiguration/babel.config.js:71
• packages/command-zod/src/command.ts:11 · packages/event-type-zod/src/eventType.ts:6 — the 2 copies are spread across 2 files, and the CITED SPAN is a run of DECLARATIONS inside a construct — the members of a type, or the entries of an object or array literal — with no statement anywhere in it. Do not read this as an extract-a-helper row: nothing here executes, so there is no call site, and a call expression cannot stand where a member declaration or a literal's entry was. What repeats is a SHAPE, and which shape decides the move. Where the copies declare the same members, the repetition is a missing common ancestor: give it a base type, an interface both extend, a generic instantiated twice, or — where the copies are a literal's entries rather than a type's members — one shared constant each site spreads or refers to, so the set is written once. Where they declare DIFFERENT members and only the form is shared — a decorator and its options, an annotation, a registration table's keys — the form is prescribed by a framework or a schema rather than copied, and the only collapse available is to generate the declarations from that schema; where you do not own the generator, this is the cost of the framework and there is nothing to extract. Check which of the two it is before acting: these copies still drift apart the first time only one of them is edited, which is why the repetition is reported, but the sentence to act on is not the same in both cases. — packages/command-zod/src/command.ts:11
• packages/event-storage-adapter-redux/src/adapter.ts:228 · packages/event-storage-adapter-redux/src/hooks/useAggregateEvents.ts:36 — the 2 copies are spread across 2 files, and the CITED SPAN is not a self-contained block — it runs from inside one construct into the next (the tail of a branch plus the head of the following one, a run of switch arms, the end of a declaration plus the list that follows it) rather than covering a whole unit. So do not lift these lines literally: no call can be substituted for a half-open construct. Extract the enclosing repeated UNIT instead — the whole function, component or branch these lines sit in — and where the repetition IS the construct (a run of switch arms, a stack of near-identical declarations) replace it with one table or registry looked up by key rather than a helper each arm calls. The copies still drift apart the first time only one of them is edited, which is why this is reported. — packages/event-storage-adapter-redux/src/adapter.ts:228

What to do

• Act on each finding's own remediation rather than one rule: the move depends on what recurs. Where the copies are executable blocks, give the shared part one home and call it from each site; where they are declarations, a listing, a specialisation already delegating to its base, or one shape repeated per entity, there is no call site and the move is a shared type, a generated set or a factory — sometimes there is nothing to extract.

React / JS · Architecture — Conformance to the detected frontend architecture layout (feature-sliced / layered src) plus cross-package deep-import rules (D-386).

Method: Conformance to the detected frontend layout (feature-sliced / layered src) plus cross-package deep-import rules, over the module graph. Deterministic.

• packages/command-json-schema/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/command-json-schema/.dependency-cruiser.js:2
• packages/command-zod/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/command-zod/.dependency-cruiser.js:2
• packages/core/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/core/.dependency-cruiser.js:2
• packages/event-storage-adapter-dynamodb/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/event-storage-adapter-dynamodb/.dependency-cruiser.js:2
• packages/event-storage-adapter-http/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/event-storage-adapter-http/.dependency-cruiser.js:2
• packages/event-storage-adapter-in-memory/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/event-storage-adapter-in-memory/.dependency-cruiser.js:2
• packages/event-storage-adapter-postgres/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/event-storage-adapter-postgres/.dependency-cruiser.js:2
• packages/event-storage-adapter-redux/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/event-storage-adapter-redux/.dependency-cruiser.js:2
• packages/event-type-json-schema/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/event-type-json-schema/.dependency-cruiser.js:2
• packages/event-type-zod/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/event-type-zod/.dependency-cruiser.js:2
• packages/lib-dam/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/lib-dam/.dependency-cruiser.js:2
• packages/lib-react-visualizer/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/lib-react-visualizer/.dependency-cruiser.js:2
• packages/message-bus-adapter-event-bridge-s3/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/message-bus-adapter-event-bridge-s3/.dependency-cruiser.js:2
• packages/message-bus-adapter-event-bridge/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/message-bus-adapter-event-bridge/.dependency-cruiser.js:2
• packages/message-bus-adapter-in-memory/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/message-bus-adapter-in-memory/.dependency-cruiser.js:2
• packages/message-queue-adapter-in-memory/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/message-queue-adapter-in-memory/.dependency-cruiser.js:2
• packages/message-queue-adapter-sqs-s3/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/message-queue-adapter-sqs-s3/.dependency-cruiser.js:2
• packages/message-queue-adapter-sqs/.dependency-cruiser.js:2 reaches into another package with a relative path (../../.dependency-cruiser.js) — import the package by name instead. — packages/message-queue-adapter-sqs/.dependency-cruiser.js:2

What to do

• Fix the listed violations: import through public entries (package exports / slice index), never reach into another layer or package's internals.

React / JS · Code Health — Per-function cyclomatic/cognitive complexity from the token-level function scanner (D-386) — real branching, not a regex heuristic.

Method: Per-function cyclomatic/cognitive complexity from a token-level function scanner (real branching, not a regex heuristic), computed over every frontend function. Deterministic.

• (top-level) has cyclomatic complexity 17 and cognitive complexity 16; this row is raised above a cyclomatic bar of 10. The two numbers answer different questions and the gap between them is what decides whether to act: cyclomatic counts the independent arms through the body, cognitive counts what it costs to hold them in your head, so nesting and mixed boolean chains raise it while a flat run of independent arms does not. Cognitive sits below cyclomatic here, so much of the count is breadth — arms side by side rather than stacked — and splitting per arm would leave a function per arm; group the work between the checks into named steps instead. Measured by this repository's own parse of the file, so a body assembled at runtime, or generated, is counted as written rather than as it executes. — packages/message-bus-adapter-event-bridge/src/message.ts:1
• (anonymous) has cyclomatic complexity 13 and cognitive complexity 20; this row is raised above a cyclomatic bar of 10. The two numbers answer different questions and the gap between them is what decides whether to act: cyclomatic counts the independent arms through the body, cognitive counts what it costs to hold them in your head, so nesting and mixed boolean chains raise it while a flat run of independent arms does not. Cognitive is at or above cyclomatic here, so the branching is nested or entangled rather than laid out side by side — extracting each decision into its own named function is the change that pays. Measured by this repository's own parse of the file, so a body assembled at runtime, or generated, is counted as written rather than as it executes. — packages/event-storage-adapter-postgres/src/adapter.ts:347
• getEvents has cyclomatic complexity 13 and cognitive complexity 12; this row is raised above a cyclomatic bar of 10. The two numbers answer different questions and the gap between them is what decides whether to act: cyclomatic counts the independent arms through the body, cognitive counts what it costs to hold them in your head, so nesting and mixed boolean chains raise it while a flat run of independent arms does not. Cognitive sits below cyclomatic here, so much of the count is breadth — arms side by side rather than stacked — and splitting per arm would leave a function per arm; group the work between the checks into named steps instead. Measured by this repository's own parse of the file, so a body assembled at runtime, or generated, is counted as written rather than as it executes. (×2) — packages/event-storage-adapter-dynamodb/src/legacyAdapter.ts:153, packages/event-storage-adapter-dynamodb/src/singleTableAdapter.ts:164
• listAggregateIds has cyclomatic complexity 12 and cognitive complexity 16; this row is raised above a cyclomatic bar of 10. The two numbers answer different questions and the gap between them is what decides whether to act: cyclomatic counts the independent arms through the body, cognitive counts what it costs to hold them in your head, so nesting and mixed boolean chains raise it while a flat run of independent arms does not. Cognitive is at or above cyclomatic here, so the branching is nested or entangled rather than laid out side by side — extracting each decision into its own named function is the change that pays. Measured by this repository's own parse of the file, so a body assembled at runtime, or generated, is counted as written rather than as it executes. (×2) — packages/event-storage-adapter-dynamodb/src/legacyAdapter.ts:335, packages/event-storage-adapter-dynamodb/src/singleTableAdapter.ts:347

React / JS · Code Health — How many source files exceed the large-file threshold.

Method: Components/modules exceeding the large-file threshold, counted exhaustively across the frontend source tree. Deterministic.

• packages/event-storage-adapter-postgres/src/adapter.ts has 498 significant lines (blank lines excluded), over the 400-line bar, and contains logic — a file this long is usually several responsibilities in one module. — packages/event-storage-adapter-postgres/src/adapter.ts:1

What to do

• Split each oversized file along the responsibilities already in it, into smaller focused modules in the same package.

React / JS · Readiness — Static test reachability (D-386): the share of production files reachable from any test via the import graph — measured without running anything.

Method: Static test reachability: the share of production files reachable from any test via the import graph — measured without running anything. Deterministic.

• No test imports this module directly or transitively. Import reachability cannot see a test that executes a file by path instead of importing it, nor one that drives it through a running browser by navigating to a URL — if neither does, no test reaches this one. (×35) — packages/event-storage-adapter-redux/src/adapter.ts:1, packages/message-bus-adapter-event-bridge-s3/src/adapter.ts:1, packages/message-queue-adapter-sqs-s3/src/adapter.ts:1, …

What to do

• Add tests that import the unreached modules (directly or through their public entry).

React / JS · Readiness — Whether the project wires up test, lint and typecheck — detected from each package.json script's COMMAND (eslint / tsc / vitest / jest / playwright), not just its name, and corroborated against CI-workflow invocations so a tool run only in CI still counts.

Method: package.json scanned for test/lint/typecheck script wiring. Deterministic presence check.

React / JS · Code Health — Files unreachable from every application/tooling/test entry point, and exports nothing imports (module-graph reachability, D-386).

Method: Dead code: files unreachable from every application/tooling/test entry point plus exports nothing imports, via module-graph reachability. Deterministic, exhaustive over the import graph.

• Nothing ultimately consumes this binding: its only referrer is the re-export in packages/core/src/messaging/utils/index.ts, whose re-exported name has no consumer either. Removing it is therefore not a one-file change — drop the re-export line in packages/core/src/messaging/utils/index.ts in the same commit, or the barrel will import a name that no longer exists. (×2) — packages/core/src/messaging/utils/isNotificationMessage.ts:4, packages/core/src/messaging/utils/isStateCarryingMessage.ts:4
• Nothing ultimately consumes this binding: its only referrer is the re-export in packages/event-storage-adapter-dynamodb/src/index.ts, whose re-exported name has no consumer either. Removing it is therefore not a one-file change — drop the re-export line in packages/event-storage-adapter-dynamodb/src/index.ts in the same commit, or the barrel will import a name that no longer exists. (×4) — packages/event-storage-adapter-dynamodb/src/constants.ts:6, packages/event-storage-adapter-dynamodb/src/constants.ts:7, packages/event-storage-adapter-dynamodb/src/constants.ts:8, …
• Nothing ultimately consumes this binding: its only referrer is the re-export in packages/event-storage-adapter-http/src/index.ts, whose re-exported name has no consumer either. Removing it is therefore not a one-file change — drop the re-export line in packages/event-storage-adapter-http/src/index.ts in the same commit, or the barrel will import a name that no longer exists. — packages/event-storage-adapter-http/src/adapter.ts:15
• Nothing ultimately consumes this binding: its only referrer is the re-export in packages/event-storage-adapter-redux/src/hooks/index.ts, whose re-exported name has no consumer either. Removing it is therefore not a one-file change — drop the re-export line in packages/event-storage-adapter-redux/src/hooks/index.ts in the same commit, or the barrel will import a name that no longer exists. — packages/event-storage-adapter-redux/src/hooks/useExistingAggregate.ts:11
• Nothing ultimately consumes this binding: its only referrer is the re-export in packages/lib-react-visualizer/src/index.tsx, whose re-exported name has no consumer either. Removing it is therefore not a one-file change — drop the re-export line in packages/lib-react-visualizer/src/index.tsx in the same commit, or the barrel will import a name that no longer exists. — packages/lib-react-visualizer/src/Visualizer.tsx:24
• Nothing ultimately consumes this binding: its only referrer is the re-export in packages/message-bus-adapter-event-bridge-s3/src/index.ts, whose re-exported name has no consumer either. Removing it is therefore not a one-file change — drop the re-export line in packages/message-bus-adapter-event-bridge-s3/src/index.ts in the same commit, or the barrel will import a name that no longer exists. (×2) — packages/message-bus-adapter-event-bridge-s3/src/adapter.ts:25, packages/message-bus-adapter-event-bridge-s3/src/parseMessage.ts:16
• Nothing imports this binding — it is safe to review for removal. — packages/message-queue-adapter-sqs-s3/src/adapter.ts:21
• Nothing ultimately consumes this binding: its only referrer is the re-export in packages/message-queue-adapter-sqs-s3/src/index.ts, whose re-exported name has no consumer either. Removing it is therefore not a one-file change — drop the re-export line in packages/message-queue-adapter-sqs-s3/src/index.ts in the same commit, or the barrel will import a name that no longer exists. (×2) — packages/message-queue-adapter-sqs-s3/src/adapter.ts:23, packages/message-queue-adapter-sqs-s3/src/parseBody.ts:10

What to do

• Delete the dead files and unused exports — every line is maintenance cost and rebuild-estimate inflation with zero runtime value.

React / JS · Readiness — npm dependency truthfulness (D-386): unused dependencies, imports not declared anywhere, and type-/test-only packages shipped as production deps.

Method: npm dependency truthfulness: unused dependencies, imports declared nowhere, and type-/test-only packages shipped as production deps — from the manifest + import graph. Deterministic.

• Imported only as a TYPE and declared in no reachable package.json. The import is erased at compile time, so nothing is installed and no runtime resolution depends on it — but type-checking a clean clone will fail. Declare the typings it resolves through (or the package itself) in the owning package.json. (×2) — packages/lib-test-tools/src/mockEventStore.type.test.ts:1, packages/message-bus-adapter-in-memory/src/adapter.unit.test.ts:3
• Declared in the root package.json but never imported anywhere in that package or its workspace members — no static import reaches it. Usually that is dead weight and attack surface, but two shapes are indistinguishable from source and are NOT dead: an optional or native peer that another dependency loads dynamically at runtime, and a package a build, docs or test step installs and invokes separately. Confirm which of the three this is before removing it. (×2)
• Every import is type-only — move it to devDependencies. — packages/core/src/command/command.type.test.ts:1

What to do

• Remove unused dependencies, declare unlisted imports explicitly, and demote type-/test-only packages to devDependencies.

React / JS · Architecture — Import cycles in the module graph (D-386) — files that can only be understood and changed together.

Method: Import cycles in the module graph, detected exhaustively over JS/TS imports (the same cycle detection as the .NET coupling dimension). Deterministic.

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.

Other · Code Health — Whether any branch is dead by construction — a switch arm whose label can never equal a case-normalised subject, or an `else if` whose predicate the arm above has already swallowed.

Method: Roslyn syntax + semantics: switch labels compared against the subject's own case normaliser, and if/else-if chains checked for a literal an earlier arm's containment test already swallows. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a child process that has BOTH standard streams redirected drains both — reading one to the end while the other is never read deadlocks once the child fills the unread pipe.

Method: Roslyn syntax + semantics: ProcessStartInfo launches with both streams redirected, checked for a drain of each stream across the enclosing type. On a repository with no .NET source it reads JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not) with the same rule: a `spawn` imported from `child_process` whose stdout and stderr are both pipes (no options, no `stdio`, or `stdio` of `'pipe'`), bound to a local that never leaves its scope, where exactly one of the two streams is read, the other never, and the child’s `close`/`exit` (or the read stream’s end) is awaited; a shell redirect in the call’s arguments or a `kill` of the child suppresses it. The same rule reads Python’s `subprocess.Popen`, Dart’s `Process.start`, Ruby’s `Open3.popen3`, and Scala’s JDK process starts (`new ProcessBuilder(…).start()` with no `redirectErrorStream`/`redirectError`/`redirectOutput`/`inheritIO`, `Runtime.getRuntime.exec`) where one of `getInputStream`/`getErrorStream` is read and the other never while `waitFor()` is called or the read stream is read to its end. Deterministic, provable per finding. Advisory.

Other · Security — Whether a hand-rolled public/private IP check can be walked past — a method that unwraps IPv4-mapped IPv6 but returns the opposite verdict for the same host written as IPv4-compatible, 6to4 or NAT64.

Method: Roslyn syntax + semantics: methods that unwrap IPv4-mapped IPv6 and hand-roll IPv4 range carve-outs, checked for whether the IPv6 branch also accounts for the IPv4-compatible, 6to4 and NAT64 embeddings. Deterministic, provable per finding. Advisory.

Other · Security — Whether a length read out of the stream being parsed is bounded before it is allocated or read — an unchecked count taken from the input lets the input choose the allocation.

Method: Roslyn syntax + semantics: integer lengths read from a BinaryReader and spent on a bulk read or an array allocation, checked for any comparison or bounding call on the value anywhere in the method. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a loop that shortens a string until it fits a length budget has a floor — one with none grinds the value down to the empty string, or past it into a negative-length `Substring`.

Method: Roslyn syntax + semantics: while/do loops whose body's only effect on a string is to drop its last character, checked for whether anything — a direct comparison on the length, a body guard, a break — bounds that length below. On a repository with no .NET source it reads JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not) with the same rule: a `while`/`do` loop whose body’s one assignment to a value is `x = x.slice(0, -1)` or `x = x.slice|substring|substr(0, x.length - 1)`, driven by a condition that reads `x.length` only as a term of a larger expression — never compared directly, never tested for truthiness, and with no other read of `x` — and whose body has no `break`, `return`, `throw` or `if` naming `x`. Deterministic, provable per finding. Advisory.

Other · Security — Whether a walk that recurses through a JSON/XML tree handed in by its caller bounds how deep it will go — an uncapped walk lets the document's nesting choose the stack depth, and the resulting StackOverflowException cannot be caught.

Method: Roslyn syntax + semantics: methods that take a JSON/XML document node and call themselves with a child of it, reachable from an externally-callable member of the same type that accepts a document, checked for any depth parameter, descent counter or threaded arithmetic anywhere in the walk. On a repository with no .NET source it reads TypeScript off the engine’s own token stream (test, vendored, generated and minified paths and `.d.ts` not) with the same rule: a function or method with a parameter typed as a document value — `unknown`, `any`, `object`, `Record<string, unknown|any>`, a JSON alias (`JsonValue`, `JSONObject`, …) or a DOM node global the file does not rebind — that calls itself (bare, or through `this` for a method, or hands itself to a call over the value as in `value.map(walk)`) with something it took out of that value and never through an ancestor accessor such as `closest()` or `parentElement`, that is exported or reached from an exported function (a public method of the same exported class) taking such a value, and that names no depth, level, nesting, recursion, remaining or budget anywhere and threads no `+`/`-` arithmetic through a self-call. Plain JavaScript is not read: with no annotation nothing tells a parsed document from a tree the code built itself. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a type's disposal matches what it OWNS — releasing what it created, leaving alone what it was handed, and not declaring a finalizer for state that has nothing unmanaged to finalize.

Method: Roslyn syntax + semantics: every assignment to a disposable field is read to decide whether the type CREATED the value or was handed it, and the type's disposal is checked against that answer — an injected interface it disposes, a value it constructed and never releases, a finalizer on a type holding nothing unmanaged, and a disposable local whose every reference is a plain member read. A value handed to a container that disposes its contents (a parent control's `Controls` collection, a component `IContainer`) is released by that container and is not reported; generated code is out of population. On a repository with no .NET source the same ownership questions are read in JavaScript/TypeScript off the engine’s own token stream (test, vendored, generated and minified paths not): a class declaring `dispose()`, `[Symbol.dispose]()` or `[Symbol.asyncDispose]()` that disposes a field it was handed through a constructor parameter typed as a repository interface or resolved by a dependency-injection container; that assigns a field only ever from `new X(…)` of a disposable class and neither releases it anywhere in the class nor names it in its disposal member or a method that member calls, nor hands it to anything else; and a `const`/`let` local built from literals only whose every reference opens a statement operating on a non-release member of it. A class is disposable when every repository declaration of its name declares or inherits a disposal member, or when it is a documented library disposable (`vscode` EventEmitter, CancellationTokenSource and Disposable; three.js geometries, materials, textures, render targets, renderers, controls and composers). The finalizer arm has no JavaScript counterpart: a class cannot declare one. Dart is read for the owned-and-never-released arm: a Flutter `State` (or a class declaring `dispose()`/`close()`) whose library-private field is written only with direct creations of a framework controller, `FocusNode`, `StreamController` or periodic `Timer` (or a `.listen(…)` into a field declared `StreamSubscription`), which nothing in the class or its library releases (`dispose`/`close`/`cancel`) and which is never handed on except as a named argument. Ruby is read for the owned-and-never-released arm and the abandoned-local arm: a class declaring an instance `close`, `dispose`, `shutdown`, `stop`, `disconnect` or `terminate` whose instance variable is written only with a blockless core descriptor creation (`File.open`/`new`, `Tempfile`, `Dir.open`, `IO.popen`, the `socket` and `openssl` socket classes) that no method of the class closes and that is never handed on (passed, returned, stored, exposed by `attr_reader`, delegated) — a class whose superclass or mixin lies outside the repository is not judged — and a blockless creation read through and dropped (`File.open(path).read`) or held in a local that is never closed, returned, passed or stored (a `&:read` block-pass, an `autoclose: false` borrow and a `fileno` hand-over are not abandonment). PHP is read for the same two arms: a class (not a trait, and not one using a trait) declaring an instance `close`, `dispose`, `shutdown`, `stop`, `disconnect` or `terminate` whose `private` property (or a `final` class's `protected` one) is written only with a direct core `fopen`, `tmpfile`, `popen`, `proc_open`, `fsockopen`, `stream_socket_client`/`server` or `opendir` that nothing in the class closes (`fclose`, `pclose`, `closedir`, `unset`, a reset to `null`) and that is never handed on, and a handle held in a function's local, or read through as the argument of a reader, that is never closed, returned, passed, captured or stored; a `php://` stream, `curl_init`, `SplFileObject`, `PDO` and a function the repository declares under the core name are not read. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a method that temporarily changes state belonging to the whole process — the working directory, an environment variable — puts it back on EVERY path: a restore reached only when nothing throws leaks the change to the rest of the process.

Method: Roslyn syntax + semantics: method bodies that write the process working directory or an environment variable and write it back in the same body, checked for whether that restore sits in a `finally`/`catch` or only on the straight-line path. On a repository with no .NET source the same rule reads production JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not): `process.chdir`, `process.env.NAME =`/`["NAME"] =` and `delete process.env.NAME`, and Deno’s `Deno.chdir`/`Deno.env.set`/`Deno.env.delete`, paired per function body (a nested function or arrow is its own body, and module top-level code is none), where the last write puts back a local the body captured from the same global or deletes a variable the first write set, with at least one statement between them; a write in a `catch`/`finally` of that body silences it. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a `when` guard is free of side effects — a guard that increments a counter or assigns while deciding whether its arm matches applies that change during PATTERN MATCHING, on an arm that may not be selected, and skips it entirely when a short-circuit to its left answers first.

Method: Roslyn syntax: `when` guards on case labels and switch-expression arms, read for a mutation (`++`/`--`/assignment) sitting in a position the guard's own `&&`/`||`/`??`/`?:`/`?.` can skip. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a method that TAKES a lock or semaphore and gives it back from a flag-guarded `finally` returns the value that flag implies — reporting success while the guard hands the primitive back admits a second caller the exclusion was there to keep out, and reporting failure while the guard keeps it leaves nothing to ever give it back.

Method: Roslyn syntax: `try` statements whose `finally` releases a synchronisation primitive under a bare local-bool guard, where the method also TOOK that same primitive before the `try`, checked for a `return` of a bool literal whose value disagrees with the flag state the method's own straight-line assignments put it in. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether the work a diagnostic log line costs is paid only when that line is wanted — C# evaluates a call's arguments BEFORE the call, so a trace/debug message joined or projected out of a collection is built in full on every pass, and then discarded by a sink the shipped configuration leaves switched off.

Method: Roslyn syntax: log calls at a diagnostic level (a `Log`-prefixed method naming Trace/Debug/Verbose, or a bare `Debug`/`Trace`/`Verbose` on a receiver named for a logger), whose argument list is read for a call whose cost scales with a sequence — a LINQ operator, a materialisation, `string.Join`, a serializer — with no enclosing level check or conditional-compilation region. On a repository with no .NET source it reads JavaScript/TypeScript off the engine’s own token stream (test, vendored and minified paths not) with the same rule: a `debug`/`trace`/`verbose` call on a receiver named for a logger, or a `log`-prefixed method naming the level, whose argument calls an array operator (`map`/`filter`/`reduce`/`sort`/…), `Array.from`, `Object.keys/values/entries`, `JSON.stringify`/`util.inspect` over anything but a literal, or an array `join` — outside any arrow or function passed as an argument, which the logger calls only when the level is on — with no enclosing `if`, `&&` or `?:` whose condition names a level, a level string, or the `NODE_ENV`/`__DEV__`/`DEV` build switch. Deterministic, provable per finding. Advisory.

Other · Security — Whether text read out of the document being converted is escaped before it is written into generated markup — a value the document's author chose, interpolated into an attribute the surrounding literal delimits, can close that attribute and open another.

Method: Roslyn semantic model over the whole compilation: a string-typed `Value`/`InnerText`/`InnerXml`/`Text` member declared inside `DocumentFormat.OpenXml` or `System.Xml` is a taint SOURCE, propagated through assignments, returns, arguments, tuple elements and string composition to its transitive closure, then read at interpolated-string holes that sit in a markup position the surrounding literal itself delimits. Escaper/encoder calls and enclosing validator conditions cut the flow. Flow- and container-insensitive by construction. A second arm needs no provenance at all and reports a type that CONTRADICTS ITSELF — the same expression escaped at one delimited markup hole and interpolated raw at another hole in the same markup position of the same type, which the type's own escaping proves is a defect without knowing where the value came from. On a repository with no .NET source it reads JavaScript/TypeScript off the token stream with the same rule: a DOM read of raw document text (`getAttribute`, `textContent`, `innerText`, `nodeValue`) is the source, propagated through local bindings and string composition, and judged at template-literal and concatenation holes in the same two delimited markup positions; escapers and validating conditions cut it, and documentation-site, test, vendored and minified scripts are not read. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a value the caller is invited to supply is the value the type actually uses — a constructor parameter stored in a private field that nothing ever reads while the default it was given is spelled out a second time at the site that should have read it, a keyed lookup that falls back to a different setting than the one its key names while the same type falls back to the matching one for that same key, or a culture-sensitive parse given no format provider by a type that feeds its own settable culture to the same kind of parse elsewhere, or a number an entry point writes to standard output under the host's culture while the same entry point formats with the invariant culture elsewhere. Either way, every caller who supplies a value silently gets something else.

Method: Roslyn syntax: private instance fields of a non-partial type assigned in a constructor from one of its own parameters with a `??` fallback, checked for whether anything in the type body reads the field and whether that same fallback expression is spelled out again outside the constructor; and `??` fallbacks onto a member access from a lookup call carrying exactly one string literal, grouped by that key across the type and checked for a fallback member whose folded name disagrees with the key while a sibling site for the same key agrees with it. On a repository with no .NET source the first two arms read JavaScript/TypeScript off the engine’s own token stream (tests included, bundles and vendored paths not): a `#x`, `private` or `private` parameter-property instance field filled in the constructor from a parameter (or one member of one) through `??`/`||` or a parameter default, never read anywhere in the file by name, whose constructed default is spelled again in the class body; and `lookup("key") ?? s.member` grouped by key per class, or per module outside every class. The culture arm has no JavaScript counterpart: its parses take no locale. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a condition that tests a value for emptiness indexes that same value only where the test holds — an `||` written one parenthesis too far to the left leaves an index access outside the guard beside it, so the empty case the guard exists to anticipate reaches the index and throws.

Method: Roslyn syntax only, no semantic model: the OUTERMOST `&&`/`||` of every boolean condition, read for a symbol the condition tests for emptiness (`string.IsNullOrEmpty`/`IsNullOrWhiteSpace`, a `Length`/`Count` comparison against a literal, `Any()`, a `Length`/`Count` pattern, or a comparison against `""`) and ALSO indexes. Each `symbol[...]` access is placed by a boolean-reachability walk from the access up to the outermost connective: an access is COVERED when some enclosing step has it in the right operand and the left operand, under the truth value that step forces, proves the symbol non-empty — a recursion over `&&`/`||` whose true- and false-directions are asymmetric. A finding needs BOTH an uncovered access and a covered one on the same symbol in the same condition, which is the agreeing twin that separates a misplaced parenthesis from an unrelated length test. Bare index accesses with no emptiness test in the condition are neither counted nor reported; a non-identifier receiver and a lambda nested inside the condition are outside the population. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether a decision taken once per element is taken ABOUT that element — a test inside a counted loop that reads a fixed subscript of the very collection its guarded statement indexes by the loop variable applies element zero's answer to all of them, so the elements that differ from it are all handled wrongly, and in the same direction.

Method: Roslyn syntax only, no semantic model: every `for` statement declaring exactly ONE loop variable, and every `if` inside its body that is not under a nested loop or a lambda. A site enters the population when the `if`’s condition never mentions the loop variable while the statement it guards indexes some collection by that variable ALONE (`c[i]`; `c[i + 1]` and `c[i, j]` are outside it). A finding additionally needs the AGREEING TWIN at the same-collection grain: the condition must read THAT SAME collection at a subscript that does not move — written into the condition, or reached through a local declared BEFORE the loop, so an alias bound inside the body is not followed. Both collection expressions must be simple identifiers. On a repository with no .NET source the same rule reads JavaScript/TypeScript off the engine’s own token stream (tests included, bundles and vendored paths not): a `for (let|var|const x = …; …; …)` with one declarator and a braced body, an alias followed only when it is declared before the loop in a block that encloses it and never assigned inside the loop. Deterministic, provable per finding. Advisory.

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

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

Other · Code Health — Whether a guard written as a NEGATED `||` says what its author meant — `!(a || b || x != k)` is `!a && !b && x == k` by De Morgan, so a bail-out that mixes capabilities the code needs with a fault it refuses turns inside out: it fires only where the capabilities are ABSENT, and lets every value the fault term names walk straight into the body that cannot handle it.

Method: Roslyn syntax only, no semantic model: every logical-not whose operand is a parenthesised `||` chain of two or more disjuncts, flattened (a left-nested `a || b || c` read once would see `(a || b)` as one disjunct). A site enters the population on that shape alone. A finding additionally needs the disjuncts to DISAGREE in polarity: at least one bare boolean read — an identifier or member access, never an invocation, which is a predicate rather than a capability flag — and at least one `x != <constant>`, the only form that negates into an exact-value pin (`== null` negates into a looser requirement and is outside the fault set). Consistently-polarised disjunctions, all-fault or all-capability, are counted and never reported; a negated `&&` is outside the population entirely. No same-receiver gate: it was measured to cost a real defect and remove no false positive. Deterministic, provable per finding. Advisory.

Other · Code Health — Whether strict null checking is enabled and not undermined by heavy `!` assertion — TypeScript's `strictNullChecks` (which `strict` turns on) is what makes `string` exclude `null` and `undefined`, and the postfix `!` is the operator that silences it.

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