ZacSweers/metro

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Scan timing: clone 5.06s · analysis 15.61s · 10.2 MB · GitHub API rate-limit (preflight)

https://github.com/ZacSweers/metro · scanned 2026-06-05 17:40 UTC (4 days, 21 hours ago) · 10 languages

218 raw signals (92 security + 126 graph) 33rd percentile · Kotlin · large (100-500K LoC) System graph score 88 (lower by 17)

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UNIFIED Repobility · multi-layer engine · AI coders

Complete repo analysis

Last scanned 4 days, 21 hours ago · v2 · 41 actionable findings from 2 signal sources. 114 repeated signals grouped for readability. Security checks, system graph analysis, and verified AI-agent feedback are merged into one review queue.

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66.7% cov · 16 findings

Score breakdown â 2026-05-18-v5

Component	Sub-score	Weight	Contribution
`structure_score`	40.0	0.15	6.00
`security_score`	75.4	0.25	18.85
`testing_score`	80.0	0.20	16.00
`documentation_score`	92.0	0.15	13.80
`practices_score`	69.0	0.15	10.35
`code_quality`	64.1	0.10	6.41
Overall		1.00	71.4

Severity distribution — click a segment to filter

Active filters: excluding tests × Reset all

Severity: Critical 0 High 6 Medium 10 Low 16 9-Layer: Software Security Quality Integrity Frontend Hardware Data Network Cicd Source: Security checks 25 System graph 16 Crowd 0 Layer: Software 15 Quality 18 Cicd 5 Api 1 Frontend 1 Security 1

Exclude dismissed / FP Exclude test files

Scan summary Quality grade B (71/100). Dimensions: security 75, maintainability 40. 92 findings (51 security). 166,458 lines analyzed.

Showing 31 of 41 actionable findings. 155 raw detector signals were grouped into reader-sized issues. Click TP / FP to vote on a finding's accuracy — votes adjust the confidence weighting and improve detection across the platform.

low Security checks cicd CI/CD security conf 0.35 ✓ Repobility 14 occurrences Workflow references repository secrets in a pull_request workflow

Fork pull_request runs do not receive normal repository secrets on GitHub Actions. Review this as a reliability/intent signal, not as direct fork-secret exfiltration. Raise severity only for pull_request_target or another trusted-context path that runs untrusted PR code with secrets.

4 files, 14 locations

.github/workflows/ci.yml:81, 138, 178, 235, 276, 326, 334, 335 (8 hits)

.github/workflows/benchmark-regression.yml:51, 367 (2 hits)

.github/workflows/docs-site.yml:45, 161 (2 hits)

.github/workflows/ide-integration.yml:57, 109 (2 hits)

CI/CD securityworkflow secretsGitHub Actions

high Security checks quality Quality conf 1.00 ✓ Repobility [MINED021] Path Traversal Os Join: os.path.join(user_dir, filename) where filename can contain "../" — directory escape.

Review and fix per the pattern semantics. See CWE-22 / A01:2021 for context.

scripts/trace-project.sh:162

high Security checks quality Quality conf 1.00 ✓ Repobility 3 occurrences [MINED029] Kotlin Null Bang: x!! throws NullPointerException if x is null. Bypasses Kotlins null safety.

Review and fix per the pattern semantics. See CWE-476 / for context.

3 files, 3 locations

build.gradle.kts:44

compiler/build.gradle.kts:188

compiler/src/main/kotlin/dev/zacsweers/metro/compiler/circuit/CircuitSymbols.kt:159

high Security checks software dependencies conf 0.90 ✓ Repobility 5 occurrences Binary file `benchmark/gradle/wrapper/gradle-wrapper.jar` committed in source repo

`benchmark/gradle/wrapper/gradle-wrapper.jar` is a .jar binary (48,462 bytes) committed to a repo that otherwise has 1343 source files. Trojan binaries inside otherwise-normal source repos are a known supply-chain attack: a compromised dependency or PR slips in a binary that gets executed by build …

5 files, 5 locations

benchmark/gradle/wrapper/gradle-wrapper.jar:1

gradle/wrapper/gradle-wrapper.jar:1

ide-integration-tests/gradle/wrapper/gradle-wrapper.jar:1

ide-integration-tests/test-project/gradle/wrapper/gradle-wrapper.jar:1

samples/gradle/wrapper/gradle-wrapper.jar:1

medium Security checks cicd CI/CD security conf 0.90 ✓ Repobility 10 occurrences GitHub Action is tag-pinned rather than SHA-pinned

Action `mikepenz/action-junit-report` pinned to mutable ref `@v6` uses a mutable tag or branch. Pin external actions to a reviewed full commit SHA when the workflow is security-sensitive.

3 files, 10 locations

.github/workflows/ci.yml:105, 159, 197, 258 (7 hits)

.github/workflows/update-ide-mappings.yml:33 (2 hits)

.github/workflows/proto-breaking.yml:20

CI/CD securitySupply chainGitHub Actions

high Security checks software dependencies conf 0.88 serialize-javascript: GHSA-5c6j-r48x-rmvq

Serialize JavaScript is Vulnerable to RCE via RegExp.flags and Date.prototype.toISOString()

kotlin-js-store/package-lock.json

high Security checks software dependencies conf 0.88 tmp: GHSA-ph9p-34f9-6g65

tmp has Path Traversal via unsanitized prefix/postfix that enables directory escape

kotlin-js-store/package-lock.json

high System graph cicd CI/CD security conf 1.00 GitHub Action tracks a moving branch

jlumbroso/free-disk-space@main can move without a code change in this repo. Pin third-party actions to a reviewed 40-character commit SHA.

.github/workflows/ide-integration.yml:86 CI/CD securitySupply chainGithub actions

low Security checks quality Error handling conf 0.55 ✓ Repobility 2 occurrences Broad exception handler needs review

This handler catches Exception/BaseException. It is actionable when it swallows errors without logging, re-raising, or returning a structured error. Handlers that intentionally convert exceptions into typed error results should not be treated as high risk.

lines 100, 116

compiler-compat/fetch-all-ide-kotlin-versions.py:100, 116 (2 hits)

Error handlingquality

medium Security checks software dependencies conf 0.88 qs: GHSA-q8mj-m7cp-5q26

qs has a remotely triggerable DoS: qs.stringify crashes with TypeError on null/undefined entries in comma-format arrays when encodeValuesOnly is set

kotlin-js-store/package-lock.json

medium Security checks software dependencies conf 0.88 serialize-javascript: GHSA-qj8w-gfj5-8c6v

Serialize JavaScript has CPU Exhaustion Denial of Service via crafted array-like objects

kotlin-js-store/package-lock.json

medium Security checks software dependencies conf 0.88 uuid: GHSA-w5hq-g745-h8pq

uuid: Missing buffer bounds check in v3/v5/v6 when buf is provided

kotlin-js-store/package-lock.json

medium Security checks software dependencies conf 0.88 webpack-dev-server: GHSA-79cf-xcqc-c78w

webpack-dev-server vulnerable to cross-origin source code exposure on non-HTTPS origins

kotlin-js-store/package-lock.json

medium Security checks software dependencies conf 0.88 ws: GHSA-58qx-3vcg-4xpx

ws: Uninitialized memory disclosure

kotlin-js-store/package-lock.json

medium System graph cicd CI/CD security conf 1.00 4 occurrences GitHub Actions workflow grants broad write permissions

CI tokens with write permissions increase blast radius when an action, dependency, or PR workflow is compromised. Prefer job-level least-privilege permissions.

4 files, 4 locations

.github/workflows/benchmark-regression.yml

.github/workflows/docs-site-manual.yml

.github/workflows/docs-site.yml

.github/workflows/update-ide-mappings.yml

CI/CD securitySupply chainGithub actions

medium System graph security Coverage conf 1.00 No auth library detected

The scanner did not find any standard auth library (JWT, OAuth, NextAuth, Auth0, etc.). Either auth lives in custom code, in a separate service, or is missing.

auth

medium System graph quality Tests conf 1.00 Very low test-to-source ratio

0 test file(s) for 1 source file(s) (ratio 0.00). Consider adding integration or unit tests for critical paths.

Coverage

low Security checks software dependencies conf 0.88 diff: GHSA-73rr-hh4g-fpgx

jsdiff has a Denial of Service vulnerability in parsePatch and applyPatch

kotlin-js-store/package-lock.json

low Security checks quality Quality conf 0.60 20 occurrences Duplicated implementation block across source files

Duplicate implementation blocks are maintenance debt. Keep them visible, but they are not a high-severity defect unless the duplicated logic is security-sensitive or drifting.

12 files, 17 locations

compiler-compat/k240_dev_2124/src/main/kotlin/dev/zacsweers/metro/compiler/compat/k240_dev_2124/CompatContextImpl.kt:24, 25

(2 hits)

compiler-compat/k240_dev_2124/src/main/kotlin/dev/zacsweers/metro/compiler/compat/k240_dev_2124/IrConstructorCallIrGeneratedDeclarationsRegistrarCompat.kt:5, 43

(2 hits)

compiler-tests/src/generator2320/kotlin/dev/zacsweers/metro/compiler/GenerateTestsImpl.kt:1, 4 (2 hits)

compiler-tests/src/generator240/kotlin/dev/zacsweers/metro/compiler/GenerateTestsImpl.kt:1, 4 (2 hits)

compiler-tests/src/generator2420/kotlin/dev/zacsweers/metro/compiler/GenerateTestsImpl.kt:1, 4 (2 hits)

compiler-compat/k2320/src/main/kotlin/dev/zacsweers/metro/compiler/compat/k2320/CompatContextImpl.kt:57

compiler-compat/k240/src/main/kotlin/dev/zacsweers/metro/compiler/compat/k240/CompatContextImpl.kt:51

compiler-compat/k240/src/main/kotlin/dev/zacsweers/metro/compiler/compat/k240/IrConstructorCallIrGeneratedDeclarationsRegistrarCompat.kt:46

duplicationquality

low Security checks software dependencies conf 0.88 webpack: GHSA-38r7-794h-5758

webpack buildHttp HttpUriPlugin allowedUris bypass via HTTP redirects → SSRF + cache persistence

kotlin-js-store/package-lock.json

low Security checks software dependencies conf 0.88 webpack: GHSA-8fgc-7cc6-rx7x

webpack buildHttp: allowedUris allow-list bypass via URL userinfo (@) leading to build-time SSRF behavior

kotlin-js-store/package-lock.json

low System graph cicd CI/CD security conf 1.00 60 occurrences GitHub Action is tag-pinned rather than SHA-pinned

actions/checkout@v6 can move without a code change in this repo. Pin third-party actions to a reviewed 40-character commit SHA.

9 files, 60 locations

.github/workflows/benchmarks.yml:100, 212, 293, 330, 414, 421, 460, 508, +4 more (24 hits)

.github/workflows/ci.yml:28, 34, 98, 152, 190, 251, 287 (12 hits)

.github/workflows/benchmark-regression.yml:26, 275, 324, 344, 375, 521, 544, 565, +3 more (11 hits)

.github/workflows/docs-site.yml:55, 170 (4 hits)

.github/workflows/ide-integration.yml:65, 101, 136 (3 hits)

.github/workflows/check-kotlin-bootstrap.yml:21, 42 (2 hits)

.github/workflows/update-ide-mappings.yml:18, 19 (2 hits)

.github/workflows/docs-site-manual.yml:73

CI/CD securitySupply chainGitHub Actions

low System graph quality Integrity conf 1.00 Near-duplicate function bodies in 2 places

Functions with the same first-5-line body hash: compiler-compat/fetch-all-ide-kotlin-versions.py:sort_key, compiler-compat/fetch-all-ide-kotlin-versions.py:sort_key This is *the* AI-coder failure mode (4× more duplication in vibe-coded repos — see https://jw.hn/ai-code-hygiene). Consolidate or doc…

duplicatesduplication

low System graph software Dead code conf 1.00 Possibly dead Python function: fetch_history

No callers detected by AST scan in this repo. Could be exported for external callers or a framework handler.

compiler-compat/fetch-all-ide-kotlin-versions.py:155

low System graph software Dead code conf 1.00 Possibly dead Python function: sort_key

No callers detected by AST scan in this repo. Could be exported for external callers or a framework handler.

compiler-compat/fetch-all-ide-kotlin-versions.py:545

low System graph quality Complexity conf 1.00 Very large file: benchmark/run_benchmarks.sh (1879 lines)

Files with >800 lines often hide complexity hotspots and discourage tests.

low System graph quality Complexity conf 1.00 Very large file: benchmark/run_startup_benchmarks.sh (4568 lines)

Files with >800 lines often hide complexity hotspots and discourage tests.

low System graph quality Complexity conf 1.00 Very large file: compiler-tests/src/test/java/dev/zacsweers/metro/compiler/BoxTestGenerated.java (3205 lines)

Files with >800 lines often hide complexity hotspots and discourage tests.

low System graph quality Complexity conf 1.00 Very large file: compiler-tests/src/test/java/dev/zacsweers/metro/compiler/ContributionProvidersBoxTestGenerated.java (3205 lines)

Files with >800 lines often hide complexity hotspots and discourage tests.

low System graph quality Complexity conf 1.00 Very large file: compiler-tests/src/test/java/dev/zacsweers/metro/compiler/DiagnosticTestGenerated.java (1499 lines)

Files with >800 lines often hide complexity hotspots and discourage tests.

low System graph quality Complexity conf 1.00 Very large file: compiler-tests/src/test/java/dev/zacsweers/metro/compiler/FastInitBoxTestGenerated.java (3205 lines)

Files with >800 lines often hide complexity hotspots and discourage tests.

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