Public report — frp, published 6 Aug 2026.
Concrete security findings (CVE IDs, secret matches, dependency versions) are hidden in this version;
ask the repo owner for the full report.
110findings with an exact file:lineof 120 — the remainder are repo-wide signals (a dimension-level measurement, not a single line); open any file:line and verify
44/113dimensions across the health lenses29564 LoC — wide & deep
Executive summary
Read through the Production lens — the standard calibration. *Green* means good enough to run in production. The score is absolute and comparable across repos.
fatedier/frp is sound in substance but carries real gaps (54%). It is not in crisis, but the issues below raise the cost of changing it — friction its consumers ultimately inherit.
It is strongest in Domain Modelling (100%) — the domain model is expressive and well-guarded. Architecture (100%) is solid too.
The area that most needs attention is Readiness (41%) — releases are harder to depend on — versioning, release notes and dependency hygiene are thin, so consumers can't easily tell what changed or trust an upgrade. Security (56%) is the next concern — exposure to security and compliance incidents is elevated.
Leadership focus, highest impact first: tests that import the unreached modules (directly or through… (Test Coverage); unused dependencies, declare unlisted imports explicitly,… (Dependency Hygiene); Stamp a version in your build/package manifest (e.g. csproj <Version> (Release Hygiene).
For scale: Medium (~29,564 production lines); rebuilding it from scratch would take roughly ~0.4 person-years (~1 engineer). Approximate, ±~30%.
It builds on a genuinely strong Domain Modelling foundation (100%); the priorities above are the highest-leverage way to bring the rest up to that level.
How the score is built — each lens's share of the headlineWidth is the lens's weight in the worst-heaviest fold (the weakest area pulls hardest); colour is that lens's own band. A lens fixes the score in proportion to its width.
R7 · Dead file (~33 LoC) web/frpc/src/utils/format.ts
A full-fidelity diff against the previous run's complete recorded findings — line-move tolerant: a finding that only shifted line counts as unchanged, only genuinely new titles/files surface here.
0.8× (at 54% quality) — the last 20% of quality is most of the work
Size & shape
Medium · effort split not classified (source measured from disk; the effort-tier breakdown is a C#-only syntax walk)
Dead frontend code
~33 LoC unreachable (1 file(s)) — that slice of this estimate buys code with zero runtime value; deleting it is the cheapest win in this report (the R7 card lists every file)
This codebase represents roughly ~0.4 person-years of build effort (about ~€58,000 to rebuild). Its weakest lens is Readiness at 41% — the part of that asset most exposed by the findings below.
How we model this: boilerplate at a scaffolding rate + logic × domain Standard (×1.2) — domain model × a 0.8× quality factor, at €60–95/h; indicative, ±~30% · size measured directly from source · effort from total production LoC as straight-line logic (the tier split is a C#-only syntax walk), a conservative lower bound. Indicative only — most sensitive to the hourly rate and the domain tier (both tunable in config).
Top priorities
The highest-leverage moves; the full ranked list is in the Roadmap below.
1
Add tests that import the unreached modules (directly or through their public entry).
Stamp a version in your build/package manifest (e.g. csproj <Version>, package.json, pyproject.toml, Cargo.toml, or a VERSION file) or tag releases with semver so builds and releases are traceable.
Value concentrated against a weak lens · High · Value at risk
This is a Medium asset (~0.4 person-years to rebuild), and its weakest lens is Readiness at 41%. The operational and business risk on an asset this size concentrates there — that's where remediation buys the most protection.
→ Direct remediation budget at Readiness first — highest risk-reduction per euro on an asset this size.
Highest-leverage move · Medium · Leverage
Of everything flagged, the best return on effort is: Add tests that import the unreached modules (directly or through their public entry). The rest can wait behind it.
Evidence: priority ranking: top of 5 ranked by impact/effort
→ Add tests that import the unreached modules (directly or through their public entry).
Architecture — module dependency matrix
67 modules, 144 dependencies — 2 dependency cycles, shown as the red cell(s) above the diagonal. Rows and columns are the same modules, ordered so that a module only depends on ones above it. A cell means the row depends on the column, and its number is how many type pairs create that dependency. Read one thing: is anything above the diagonal? A mark there is a dependency cycle. (A cycle is all this shows — an unusual but cycle-free dependency sits below the diagonal like any other.)
Findings mapped to OWASP categories; the specific CVEs/secrets are in the Security dimension cards below and findings.md (redacted only on the public version of this report).
OWASP category
Findings
Severity
A03:2021 — Injection
30
High / Critical
A06:2021 — Vulnerable & Outdated Components
6
High / Critical
Roadmap
Begin by expanding test coverage to include all unreached production modules. Next, clean up dependencies by removing unused packages, explicitly declaring imports, and moving type- and test-only packages to development dependencies. Ensure releases are traceable by adding a version stamp to your build manifest. Address the 17 high-priority static analysis findings, focusing first on the build and linting workflows. Finally, improve keyboard accessibility by making custom controls operable and ensuring all anchors have valid hrefs.
Ranked by impact ÷ effort. "Helps" is the estimated gain on the 0–100 health score.
Do this
Helps
Effort
Dimension
Add tests that import the unreached modules (directly or through their public entry).
Stamp a version in your build/package manifest (e.g. csproj <Version>, package.json, pyproject.toml, Cargo.toml, or a VERSION file) or tag releases with semver so builds and releases are traceable.
Watchdog is a deep, periodic assessment — run each sprint, monthly, or quarterly, taking the time to go wider and deeper than a quick check and surfacing in one coherent report what you'd otherwise piece together from a dozen separate tools. It scores deterministically: the same commit yields the same score, every run. 42 of 44 evaluated dimensions are computed purely by tools and static analysis (confidence 1.0); 2 documentation/naming judgement(s) are LLM-assisted and labelled advisory. Overall confidence is 0.6 — the weighted average across measured dimensions; it falls as more of the score leans on LLM-assisted judgement and rises when it's fully tool-backed.
Every figure here is one of three kinds, and we label which: ✓ Measured — a deterministic fact (LoC, complexity, coverage); ~ Modeled — an estimate from a stated model (cost, effort, value-at-risk), always a range with its assumptions, never a precise fact; ◐ Advisory — an LLM prose judgement. We never present a modelled estimate as if it were measured. Perfect or absent scores carry their provenance too (ADR-0011): ✓ Tool-verified means the property itself was measured across the surface; ○ Nothing flagged means the probes came back clean — a claim bounded by what a repository can show; ⊘ Not evidenced means a working control (a tested restore, an automated rollback) showed no positive evidence — absence of evidence is not evidence of a control, so it's excluded from the score rather than awarded a spurious 10; ◐ Sampled · advisory marks an LLM verdict over a bounded sample — advisory, never a deterministic measurement.
What we checked — 44 dimensions across the health lenses
Each chip is a dimension scored from real signals across architecture, testing, dependencies, security & compliance, documentation, git-history and code quality — in one coherent pass. A surface report typically covers a handful.
How to trust any code-health report — three questions
Can you open the finding? Real findings cite a repo-relative file and line you can open at the cited line — never an absolute scratch path. Here, 110 of 120 do; the remainder are repo-wide signals — a dimension-level measurement, not a single line. (Every path in this report is repo-relative by construction: paths are normalized at the producer and the report is rejected if any rooted path leaks through.)
Is there a tool behind the number? Every score below names the method that produced it — Roslyn, git, a scanner, or (for a handful of documentation/naming dimensions) an LLM labelled sampled · advisory — not a narrative.
Does re-running give the same result? Run it again on the same commit and the score — and this report, byte for byte — is identical. A report whose numbers move between runs is describing the run, not the code.
This report answers yes to all three. That's the bar to hold any assessment to.
Tools & methods
The actual versions used this run (captured at analysis time) — re-run on the same commit for the identical score.
Method
Backs
Version
Evaluator
Roslyn static analysis
Complexity, cohesion, coupling, dead code, API surface, layering
What ran differently this time — a tool absent, degraded, or that fell back to an estimate. Named openly, not folded silently into the scores. A degraded run also records its exact cause in diagnostics.md.
D30 Dependency Vulnerabilities — scanner not present in this environment — The backing tool was not installed where this scan ran, so this dimension was not scored. Install the tool (or run in the hosted environment, where it is always present) for a graded result.
Repo exclusion declarations (.gitattributes linguist-generated/vendored, .editorconfig generated_code): none declared — every source file was scored.
Limitations & what we did not check
Watchdog assesses the repository exactly as committed, and only the repository. By design it does not reach outside the source tree: the live cloud account, the running CI/CD pipeline, the host's branch-protection and approval rules, the production configuration, or a restore actually exercised against a backup are all out of scope. That boundary is a feature, not a gap — a repo-relative, deterministic scan re-runs identically on any commit and every finding opens at a real file and line, where a live audit can neither be reproduced nor traced. The visible consequence is that controls which leave no in-repo evidence are reported as "not evidenced" and excluded from the score rather than awarded a number a static scan cannot justify.
Per-dimension blind spots
For each dimension that was measured, what a static, repo-only scan structurally cannot see — the honest edge of the measurement, not a failure of it.
D1 Cyclomatic Complexity: Cyclomatic complexity counts branches statically — it cannot tell an essential decision tree from accidental tangle, nor see complexity that lives in data or configuration (large switch-case token tables, DSL lexers/parsers, data-as-code rule tables) rather than control flow: a tokenizer's many single-character cases read as high complexity though each branch is trivial.
D2 Cognitive Complexity: Cognitive-complexity heuristics approximate how hard code is to follow; genuine domain difficulty and well-named intent that eases reading are not captured.
D3 God Classes: "God class" is sized by members and responsibilities visible in the type — a deliberately broad facade over a coherent subsystem can read the same as an accidental grab-bag. For front-end JS the file-length check is cohesion-aware (a single-responsibility module — one class/IIFE — earns a 3× threshold), but cohesion is approximated from top-level declarations, not true dependency structure.
D4 Code Duplication: Duplication is token-similarity (jscpd) — it finds copy-paste, not semantic duplication expressed differently. Committed machine-written code (scaffolded migrations, designer/codegen output, protobuf/OpenAPI stubs, model snapshots) is EXCLUDED — its repetition is the tool's, not the team's — so the score reflects hand-written duplication only.
D13 Secret Scanning: Secret detection is signature- and entropy-based on the current tree — a secret that does not match a known pattern, or one already rotated, will not be flagged (a clean scan is "nothing matched", not "no secrets exist").
D15 Churn × Complexity Hotspots: Churn hotspots come from git history — a freshly imported or squashed repository has no churn signal, and recent rewrites can mask a historically risky file.
D16 Bus Factor: Bus-factor is a time-decayed model of commit attribution (who has recently, repeatedly worked a file), not comprehension — pairing, review and reading-without-committing spread knowledge it can't see; bot commits and shared accounts still distort it.
D19 Documentation Quality: Documentation quality is judged by an LLM over a bounded sample of docs — it reads what is written, not whether the docs match the running system, and it is advisory, not a measurement.
D21 Naming Consistency: Naming quality is an LLM judgement over a bounded sample — it assesses clarity/consistency of the names it sees, not domain-correctness, and is advisory.
D28 Secrets (history): Secret-history scanning sweeps the git log for known patterns — a secret that predates the available history, or never matched a signature, is not found (clean means "nothing matched in the history we can see").
D29 Static Analysis (SAST): SAST findings are pattern-based (semgrep) — it finds classes of bug it has rules for; logic flaws, auth/authorization gaps and issues needing runtime context are out of reach (and clean means "no rule matched").
D33 JS/npm Dependency Vulnerabilities: JS/npm CVE matching reads package manifests and lockfiles — risk from how a dependency is used, and advisories not yet published, fall outside this scan.
D34 Knowledge Freshness: Freshness is decayed commit RECENCY, not comprehension — code read often but rarely committed reads as orphaned, and stable code that genuinely needs no changes is penalised the same as forgotten code; bot/squash commits distort it like the bus factor.
D35 Change Coupling: Change coupling is co-change in COMMITS — files split across separate commits, or coupled only through a shared config/build step, read as uncoupled, and a sweeping commit (rename/format) is excluded so it doesn't couple everything. It shows that files change together, not WHY: a high coupling can be a healthy cohesive pair as readily as a hidden leak.
AC2 Forms & labels: Label association is read from static markup — a label wired up at runtime (JS-set aria-labelledby, framework-injected ids) reads as missing, a present label says nothing about whether its text is correct. A known UI-library field component (e.g. a JSX <TextField>) is now checked conservatively — flagged only when it carries NO label/aria-label/aria-labelledby/id/name — but wrapper/context-labelled libraries (Chakra/Radix FormControl+FormLabel) aren't statically visible (possible false positive) and non-JSX lowercased components are still skipped. A clean result is "no unlabelled native control found", not a labelling proof.
AC3 Page structure: Page structure is read from the static markup tree — landmarks, headings and lang injected at runtime aren't seen, heading ORDER is checked structurally (not against the rendered visual hierarchy), and lang/title/main fire only on full documents, never partials, and the data-table check sees header-cell presence (a <th> exists), not whether each header correctly associates with its cells. Static readiness, not conformance.
AC4 Keyboard semantics: Keyboard semantics are inferred from markup attributes — interactivity wired purely in script, focus managed at runtime, and component-level handlers are invisible. A clean result means "no static keyboard-trap shape", not a keyboard-operability proof.
AC5 ARIA correctness: ARIA correctness is checked against the static role/attribute shape — roles/attributes set dynamically aren't seen, a valid role says nothing about whether it matches the element's real behaviour, and required-state checks are suppressed when a JSX spread could supply them.
AC6 Visual & motion safety: Contrast and motion safety are PARTIAL by construction — literal colours (hex/rgb/hsl/named) in inline styles, in-repo <style> blocks, in-repo .css files, var() tokens, Tailwind neutral utilities and CSS-in-JS top-level declarations are read (same-rule/same-element colour+background pairs only); computed/runtime/theme colour, external-CDN stylesheets, CSS-in-JS dynamic (${…}) and nested-selector colours, cross-element pairs and image contrast stay out of reach, so a clean result is bounded by what the static CSS itself shows.
AC7 A11y enforcement: Enforcement is scored from in-repo config/CI evidence only — an a11y gate enforced in external tooling with no in-repo trace can't be credited, and a configured linter is presence, not proof the rules actually run or block a merge.
DM6 Domain ↔ infrastructure boundary: Infrastructure reached through a hand-rolled wrapper, a domain-named facade, reflection, or a string-keyed service locator resolves to a non-infra type and isn't seen; the body scan is symbol resolution over syntax, not full dataflow. A clean result means "no resolved infra reference in a domain body", not a proof of purity.
M4 Documentation accuracy: Onboarding quality is an LLM read of the docs/setup present — it cannot run the onboarding or measure how long a real new joiner takes; the verdict is sampled and advisory.
P4 Deployment & Rollback: Approval/branch-protection rules live in repository settings the scan cannot see — only their in-repo evidence (config files, workflows) is checked, so a control enforced purely in the host's settings reads as "not evidenced".
P6 Release Hygiene: Rollback/observability controls are inferred from repo artefacts (pipelines, dashboards-as-code) — controls configured in external tooling, with no in-repo trace, cannot be credited.
The LLM boundary
LLM-set scores this run (3): D19, D21, M4 (model: Local LLM). For these, a model reads a bounded sample and sets the numeric score (documentation, ADR quality, naming, comment value, onboarding) — D25 sets the ADR-conformance fraction over sampled code, D22 judges API accuracy over a sample. These are sampled and advisory by design: they vary at the margins between runs and are never a deterministic measurement. Every other score in this report is tool-computed at confidence 1.0.
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.
+ 6 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Resolve the 1 server.NewService (cyclomatic 30) finding(s) in Cyclomatic Complexity — start with service.go. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 UDPProxy.Run (cyclomatic 27) finding(s) in Cyclomatic Complexity — start with udp.go. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 nathole.MakeHole (cyclomatic 23) finding(s) in Cyclomatic Complexity — start with nathole.go. — One of this dimension's main actionable groups (1 warning-level).
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.
+ 26 more group(s) — more in Appendix A; the complete list is findings.md.
What to do
Resolve the 1 UDPProxy.Run (cognitive 48) finding(s) in Cognitive Complexity — start with udp.go. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 server.NewService (cognitive 47) finding(s) in Cognitive Complexity — start with service.go. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 nathole.MakeHole (cognitive 37) finding(s) in Cognitive Complexity — start with nathole.go. — One of this dimension's main actionable groups (1 warning-level).
Enforce Cognitive Complexity in CI to reach Verified (currently Documented). — Hardens enforcement from Documented toward Prevented — provenance only; does not change the score.
Detailed fixes: d2_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
D3 · God Classes9.7 / 10Exemplary✓ Tool-verified
What it measures: Over-large classes that try to do too much ("god classes").
Method: God-class detection by line and method-count thresholds per logical type (partial classes unified), filtered for generated code and registration/contract false positives. Deterministic.
What it measures: Copy-pasted code that should be shared instead.
Method: Code duplication via token-stream sliding windows with type-aware normalization (locals masked, type names preserved), density-scored per KLoC of production code. Deterministic.
What it measures: Whether any secrets (keys, tokens, passwords) have leaked into the code.
Method: In-process native secret scanner (entropy plus signature patterns) across all tracked files; no external tool. A clean result is a measured 10, not no-data zero. Deterministic.
What it measures: Files that change often and are also complex — the riskiest hotspots.
Method: Per production file churn times cyclomatic complexity over a rolling window, computed from git and Roslyn/JS/Razor analysis. Exhaustive, deterministic per commit date.
Top hotspots: server/service.go (6×30=180); server/http/controller_v2.go (8×17=136); web/frps/src/views/Proxies.vue (6×15=90)
Hotspot: server/service.go · ×8server/service.go
✓ On the Gold path — maintain.
Detailed fixes: d15_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
D16 · Bus Factor6.1 / 10Adequate✓ Tool-verified
What it measures: Whether knowledge is concentrated in too few people (the "bus factor").
Method: Living knowledge per author via time-decayed commit attribution (6-month half-life, focus weighting) across largest source files. Deterministic, avoids blame's mechanical-refactor false positives.
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.
This project's documentation is clear and complete for a high-quality open-source tool: four README files (one with sponsors, one each for frps-dashboard and frpc-dashboard projects, and one dedicated to the INI-configuration deprecation doc) plus architecture/design docs covering the full outline. The README hosts an excellent sponsor section, a detailed What-is-frp explanation, and a thorough VirtualNet alpha-feature disclaimer plus configuration, requirements, and limitations; the SSH tunnel gateway concept table and RPC interface are also well written. The deprecations document is concise but comprehensive for its topic, tracking wire protocol v1, INI format, and visitor-runID removal with replacement paths and notes on breaking changes. All sections present in the outline appear and are clearly explained.
What it measures: Whether names — types, methods, variables — are clear and consistent.
Method: Judged by language model at low temperature (0.0-0.1) on a deterministic random symbol sample (fixed size, not exhaustive), with disclosed confidence band. Advisory, sampled.
What it measures: Whether any secrets were ever committed — scanned across the full git history, not just now.
Method: Git-history secret scan via gitleaks detect over full history in an isolated checkout; each match flagged High. Exhaustive; degrades cleanly when tool absent.
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).
High: github-actions-mutable-action-tag · ×17.github/workflows/build-and-push-image.yml:22detected by semgrep finding
Medium: use-of-md5 · ×4pkg/nathole/controller.go:75detected by semgrep finding
Low: missing-ssl-minversion · ×9pkg/auth/oidc.go:44detected by semgrep finding
What to do
Resolve the 17 High finding(s) in Static Analysis (SAST) — start with build-and-push-image.yml (8), golangci-lint.yml (4), goreleaser.yml (4). — One of this dimension's main actionable groups (17 issue-level).
Resolve the 9 Low finding(s) in Static Analysis (SAST) — start with tls.go (2), https.go (2), oidc.go. — One of this dimension's main actionable groups (9 recommendation-level).
Resolve the 4 Medium finding(s) in Static Analysis (SAST) — start with controller.go, nathole.go, util.go. — One of this dimension's main actionable groups (4 warning-level).
Detailed fixes: d29_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether anyone still has living knowledge of each file, or it has been orphaned — last understood long ago by someone now gone quiet. The sibling of the bus factor: D16 asks who owns it, D34 asks whether anyone still knows it.
Method: File orphaning as total living-knowledge decay below one focused-commit's worth within a year, computed per-file from the D16 decay model. Exhaustive, deterministic over fixed history.
1 of 123 significant source file(s) are orphaned — their living knowledge has decayed to nothing, so no one currently understands them. The largest is pkg/util/http/http.go.
Further orphaned files (smaller)
✓ On the Gold path — maintain.
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; coupling through a build step, config, or non-source file isn't seen.
What it measures: Whether the build pipeline provides supply-chain integrity — generated provenance/attestation, signed artifacts (cosign/sigstore), an SBOM, and pinned build actions. Presence of the configuration, not a runtime guarantee.
Method: Supply-chain provenance/signing read deterministically from CI/build config (.github/workflows, .gitlab-ci.yml, azure-pipelines, Jenkinsfile, .circleci) + the release surface: four signals — generated provenance/attestation (SLSA/in-toto/actions-attest), artifact signing (cosign/sigstore/gitsign), an SBOM (syft/sbom-action/*.spdx.json/*.cdx.json), and SHA-pinned build actions — scored 10·present/denom. NotApplicable without a build pipeline. Detects configuration presence, not runtime enforcement.
Resolve the 1 Unpinned build actions finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 warning-level).
Resolve the 1 No build provenance finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 recommendation-level).
Resolve the 1 No artifact signing finding(s) in Supply-chain Provenance & Signing. — One of this dimension's main actionable groups (1 recommendation-level).
Detailed fixes: d36_recommendation.md · top locations in Appendix A, every location in findings.md.
What it measures: Whether dependencies have known published vulnerabilities (CVEs) per the OSV database — read natively from whatever lockfile the repository ships (Cargo, npm, Go, Python, Maven, RubyGems, …). D33 and D30 add ecosystem-specific scanners on top for npm and .NET.
Method: Multi-ecosystem dependency-CVE scan via osv-scanner --recursive (queries the osv.dev database + parses lockfiles natively across ecosystems: npm package-lock/yarn/pnpm/bun, Go go.mod, Rust Cargo.lock, Maven/Gradle pom.xml/gradle.lockfile, PyPI requirements.txt/poetry.lock/Pipfile.lock, Composer composer.lock, RubyGems Gemfile.lock, Hex mix.lock, pub pubspec.lock, Swift Package.resolved); severity tally (Critical/High/Medium/Low) to 0-10 tight normalizer (8.0). NotApplicable only when the repo declares no supported non-.NET dependency lockfile (a NuGet-only repo stays NotApplicable — .NET CVEs are D30's domain); coverage needs a resolved lockfile. Additive to D33 (trivy fs); exhaustive + deterministic, DB kept fresh.
High CVE: [GHSA redacted] · ×3web/package-lock.jsondetected by osv-scanner finding
Medium CVE: [GHSA redacted] · ×2go.moddetected by osv-scanner finding
Medium vulnerability: GO-2026-5932go.moddetected by osv-scanner finding
What to do
Resolve the 3 High CVE finding(s) in OSV Dependency Vulnerabilities — start with package-lock.json (3). — One of this dimension's main actionable groups (3 issue-level).
Resolve the 2 Medium CVE finding(s) in OSV Dependency Vulnerabilities — start with go.mod (2). — One of this dimension's main actionable groups (2 warning-level).
Resolve the 1 Medium vulnerability finding(s) in OSV Dependency Vulnerabilities — start with go.mod. — One of this dimension's main actionable groups (1 warning-level).
Detailed fixes: d38_recommendation.md · top locations in Appendix A, every location in findings.md.
Do you agree with this assessment?
Frontend & cross-cutting dimensions
R = React/JS · M = Maturity · P = Readiness.
AC2 · Forms & labels10.0 / 10Exemplary○ Nothing flagged
Other · Accessibility — Whether form controls have a programmatic label (an associated label, aria-label or aria-labelledby), buttons have text, links have an accessible name, fieldsets have a non-empty legend, known UI-library field components carry a label prop, and a placeholder isn't used as the only label. Static markup readiness, not a WCAG conformance claim.
Method: Static markup-model scan: inputs/selects/textareas checked for an associated label[for]/wrapping label/aria-label/aria-labelledby (per document), buttons for accessible text, fieldsets for a legend; placeholder-only labelling flagged. Deterministic, hard fact per control.
Other · Accessibility — Whether pages declare a language (well-formed BCP-47) and a non-empty title, expose exactly one main landmark and a sane heading order with non-empty headings, keep zoom enabled, title their iframes, give data tables header cells, and avoid meta-refresh. Static markup readiness, not a WCAG conformance claim.
Method: Static markup-model scan: html lang, document <title>, a main landmark and heading order on full documents only, plus zoom-disabling viewports, untitled iframes and meta-refresh anywhere. Deterministic, per structural checkpoint.
Other · Accessibility — Whether interactive behaviour is keyboard-reachable — no click handler on a non-interactive element lacking a role, tabindex and key handler, no positive tabindex, no href-less anchor, no placeholder-href (#/javascript) link acting as a button. Static markup readiness, not a WCAG conformance claim.
Method: Static markup-model scan: click handlers on non-interactive elements lacking role+tabindex+key handler, positive tabindex values, and href-less anchors. Components skipped, spreads suppressed. Deterministic, hard fact per element.
A click handler on a plain element isn't keyboard-operable. Use a <button>, or add role + tabindex="0" + a key handler. — ClientCard.vue:2
An <a> with no href, role or tabindex isn't focusable or keyboard-activatable. Give it a real href, or use a <button> for an action. (×2) — ClientDetail.vue:5, ProxyDetail.vue:5
What to do
Make custom controls keyboard-operable (role + tabindex + key handler), drop positive tabindex, and give anchors a real href.
Other · Accessibility — Whether ARIA is used correctly — valid non-abstract roles, the ARIA state a role requires, valid (non-misspelled) aria-* attribute names, in-enum values for token-typed aria-* attributes, and no aria-hidden on (or wrapping) a focusable element. Static markup readiness, not a WCAG conformance claim.
Method: Static markup-model scan: role values checked against the WAI-ARIA role set (abstract/invalid flagged), required ARIA state for a role, and aria-hidden on a focusable element. Deterministic, role/attribute level.
Other · Accessibility — Whether focus outlines aren't removed without a replacement, motion respects prefers-reduced-motion, and literal CSS colour pairs meet contrast — PARTIAL: inline styles, in-repo <style> blocks, in-repo .css files, var() tokens, Tailwind neutral utilities and CSS-in-JS literals are read (hex/rgb/hsl/named), never computed/runtime/external-CDN colour. Static markup readiness, not a WCAG conformance claim.
Method: Static markup/CSS scan: inline outline:none/0, literal inline colour/background contrast against the 4.5:1 AA floor, and <style>-block animation without a prefers-reduced-motion guard. Deterministic but PARTIAL — only inline styles and in-repo CSS literals are visible.
Do you agree with this assessment?
AC7 · A11y enforcement4.0 / 10Weak✓ Tool-verified
Other · Accessibility — Whether accessibility is ENFORCED in the toolchain — an accessibility checker configured over the markup (an a11y lint rule set, e.g. eslint-plugin-jsx-a11y or vuejs-accessibility where the project lints JavaScript) and an automated accessibility assertion wired into tests or CI (axe/pa11y/Lighthouse or an equivalent) — on the Documented→Verified→Prevented ladder.
Method: Repo config/CI scan: an accessibility checker configured over the markup (an a11y lint rule set such as eslint-plugin-jsx-a11y / vuejs-accessibility where JavaScript is linted) and an automated accessibility assertion in tests or CI (axe/pa11y/Lighthouse or equivalent), graded on the Documented→Verified→Prevented rungs. Deterministic, presence/rung detection.
No accessibility enforcement found — no a11y linter (eslint-plugin-vuejs-accessibility) and no axe/pa11y/Lighthouse in tests or CI. Start with the linter to catch issues at author time.
What to do
Enforce accessibility in the toolchain: add eslint-plugin-vuejs-accessibility, then assert with vitest-axe in tests, then gate axe/pa11y/Lighthouse in CI.
Other · Domain Modelling — Whether entities protect their state (private/init-only setters) instead of exposing public setters that bypass invariants. Softened when a rehydration framework (Marten/EF) is present.
Method: Roslyn (DDD-gated): public setters on entities detected; score softened when Marten/EF rehydration frameworks present. Deterministic, framework-aware.
Coverage: Population: entities by convention; encapsulation (setter shape) checked exhaustively within the set.
Other · Domain Modelling — Whether the domain layer stays free of infrastructure dependencies (EF/Marten/HTTP/ASP.NET) — the clean-architecture dependency rule.
Method: Roslyn (DDD-gated): domain-layer types scanned for infrastructure usage in member SIGNATURES and inside method/accessor BODIES — resolved calls and object-creations into EF/Marten/HTTP/Mongo/Redis/message-bus types (not just a namespace allowlist). Deterministic, symbol-resolved, exhaustive over domain-layer bodies, DDD-native.
Coverage: Domain layer identified by NAMESPACE heuristic; infrastructure then resolved by symbol in member SIGNATURES and method/accessor BODIES — rename the layer and the check evaporates.
Other · Domain Modelling — Whether clusters of primitives that travel together (a missing value object) are extracted — a low-weight suggestion, LLM-confirmed when configured.
Method: Roslyn (DDD-gated): primitive parameter clusters recurring three or more times across signatures extracted, then confirmed by language model when configured. Advisory, low-weight.
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 README to the 2 of 4 project(s) that lack one — worth up to 1 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 `NNNN-title.md` documents and nothing ADR-shaped by content. Design rationale recorded elsewhere (a design-notes tree, a mailing list, pull-request discussion) is not visible to this check and is not re-findable per decision, so a future maintainer cannot ask why one choice was made and get an answer.
What to do
Record significant decisions one document per decision — dated, stating the context, the decision and its consequences — and keep them together wherever your design docs already live (a conventional `docs/adr/` tree with `NNNN-title.md` names is the most discoverable form).
Maturity · Maturity — Whether the README actually describes the code that exists (LLM-judged, advisory).
Method: Judged by language model at low temperature: README accuracy versus actual projects, within a disclosed tolerance. Advisory, not a measured number.
README claims P2P mode but the evidence shows no P2P component
README lists a 'Server Dashboard' feature gate; frp-web's shared dashboard is present and visible
README advertises Kubernetes, but no Kubernetes manifest or chart exists
README advertises a RAG / ML engine, but no ML/RAG code or dependency exists
What to do
Reconcile the README with reality: README claims P2P mode but the evidence shows no P2P component; README lists a 'Server Dashboard' feature gate; frp-web's shared dashboard is present and visible; README advertises Kubernetes, but no Kubernetes manifest or chart exists; README advertises a RAG / ML engine, but no ML/RAG code or dependency exists.
Readiness · Readiness — Whether SAST, secret/dependency scanning and performance benchmarking are wired in (presence, not runtime).
Method: Filesystem scan: SAST configuration, dependency-update automation, secret scanning, and a benchmark harness or benchmark step — in this repository's own ecosystem. Exhaustive, deterministic.
What to do
Enable Dependabot/Renovate or a dependency-review gate.
Add gitleaks/trufflehog in CI to block PRs that introduce committed secrets.
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.
What to do
Stamp a version in your build/package manifest (e.g. csproj <Version>, package.json, pyproject.toml, Cargo.toml, or a VERSION file) or tag releases with semver so builds and releases are traceable.
Do you agree with this assessment?
R1 · Type Safety10.0 / 10Exemplary✓ Tool-verified
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 — Copy-pasted token-identical blocks across the frontend (the D4 clone algorithm over JS/TS tokens, D-386).
Method: Copy-pasted token-identical blocks across the frontend (the D4 clone algorithm run over JS/TS tokens). Deterministic.
web/frpc/eslint.config.js:12 · web/frps/eslint.config.js:12 — 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. — eslint.config.js:12
web/frpc/vite.config.mts:35 · web/frps/vite.config.mts:35 — the 2 copies are spread across 2 files, and what repeats is a LIST OF ENTRIES rather than behaviour — the same names written out more than once. Extract them into one shared, exported constant and spread that constant into each site, rather than into a function the sites call: a list like this often lives in declarative metadata (a decorator's options object, a static configuration table) that a build step must be able to read statically, where a function call is not allowed. Adding an entry to one copy and not the other is the failure this prevents. — vite.config.mts:35
web/frps/src/views/Clients.vue:134 · web/frps/src/views/Proxies.vue:248 — 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. — Clients.vue:134
web/frpc/src/views/ProxyEdit.vue:115 · web/frpc/src/views/VisitorEdit.vue:122 — the 2 copies sit in sibling files in one directory, so check first whether one of them (or an existing module there) already owns this behaviour and the others should call it; otherwise extract it into one module in that directory and have each site call it. — ProxyEdit.vue:115
web/frps/src/views/ClientDetail.vue:252 · web/frps/src/views/Proxies.vue:185 — the 2 copies sit in sibling files in one directory, so check first whether one of them (or an existing module there) already owns this behaviour and the others should call it; otherwise extract it into one module in that directory and have each site call it. — ClientDetail.vue:252
web/frpc/src/stores/proxy.ts:50 · web/frpc/src/stores/visitor.ts:26 — the 2 copies sit in sibling files in one directory, so check first whether one of them (or an existing module there) already owns this behaviour and the others should call it; otherwise extract it into one module in that directory and have each site call it. — proxy.ts:50
web/frpc/src/types/proxy-converters.ts:259 · web/frpc/src/types/proxy-converters.ts:304 — all 2 copies are in the same file, 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. — proxy-converters.ts:259
web/frps/src/views/ClientDetail.vue:309 · web/frps/src/views/Clients.vue:131 · web/frps/src/views/Proxies.vue:245 — 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. — ClientDetail.vue:309
What to do
Extract the duplicated blocks into shared functions/components.
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.
Branch-heavy code is where defects cluster — extract decisions into smaller functions. (×8) — proxy-converters.ts:10, proxy-converters.ts:328, proxy-converters.ts:170, …
What to do
Break down the listed branch-heavy functions; aim P95 cyclomatic ≤ 5.
Do you agree with this assessment?
R3 · Large Files6.3 / 10Adequate✓ Tool-verified
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.
7 file(s) over 400 lines (counted as significant lines — blank lines excluded — over production source only, tests excluded), largest first: web/frps/src/views/ProxyDetail.vue (725), web/frps/src/views/ClientDetail.vue (563), web/frpc/src/App.vue (450), web/frps/src/App.vue (449), web/frpc/src/types/proxy-converters.ts (429), web/frps/src/views/Proxies.vue (414) (+1 more).
What to do
Split each oversized file along the responsibilities already in it, into smaller focused modules in the same package.
Do you agree with this assessment?
R4 · Test Coverage1.3 / 10Critical✓ Tool-verified
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. (×8) — ProxyDetail.vue, ClientDetail.vue, Proxies.vue, …
What to do
Add tests that import the unreached modules (directly or through their public entry).
React / JS · Readiness — How outdated the npm dependencies are (a maturity signal). JS/npm CVEs are scored separately in D33 (JS/npm Dependency Vulnerabilities).
Method: npm dependency staleness from manifest/registry metadata (a maturity signal; JS/npm CVEs are scored separately in D33). Deterministic.
Do you agree with this assessment?
R6 · Tooling10.0 / 10Exemplary✓ Tool-verified
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.
Do you agree with this assessment?
R7 · Dead Code9.6 / 10Exemplary✓ Tool-verified
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.
7 file(s) (~566 LoC) were excluded from dead-code analysis — declare main/module/exports or a conventional entry (src/index.*, an index.html script) so reachability can see this package. — shared
Unreachable from the 17 application, 13 tooling and 6 test entry point(s) detected in this repo. Gate removals on your build/type-check — an undetected custom entry would make these reachable.
no import path from any entry point (17 application, 13 tooling, 6 test roots considered) — format.ts
Nothing imports this binding — it is safe to review for removal. (×5) — client.ts:5, client.ts:24, proxy.ts:21, …
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 but not declared in any reachable package.json — installs work only by hoisting accident. (×3) — App.vue:85, App.vue:97, FilterDropdown.vue:30
Declared in web/frpc/package.json but never imported anywhere in that package or its workspace members — dead weight and attack surface. Verify against build tooling before removing.
Declared in web/frps/package.json but never imported anywhere in that package or its workspace members — dead weight and attack surface. Verify against build tooling before removing.
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.
Do you agree with this assessment?
WCAG coverage — what static analysis assessed
Statically assessed 12 of 55 WCAG 2.2 Level A/AA success criteria (22%; ≈24% of the 50 WCAG 2.1 AA criteria for EN 301 549). The other 43 require runtime or manual evaluation. Partial signal only (a clean result is necessary, not sufficient; static analysis fully verifies none). This is accessibility readiness, not a conformance claim — a WCAG conformance claim requires manual evaluation (WCAG-EM 1.0).
The score is the rank-weighted fold of these lenses (worst-heaviest), each including its meta-dimensions; a lens with a Critical contributor is capped at Fair (its band reads "gated by …") and is never the strongest area however high its average.
Capped at Fair by a Critical contributor — resolve it before relying on this lens.
Not included — 69 check(s) not relevant to this codebase
These checks had nothing to measure here (no tests, no git history, the codebase is small, or the architecture style doesn't apply), so they're omitted above rather than scored low.
AC1 Text alternatives — No image/media element found in the parsed markup — AC1 not applicable here.
AX1 Captive dependencies — no DI registrations detected
AX10 Code composition — not assessed — code composition is computed by ROLE over a document set that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX2 Stateful singletons — no singleton implementations detected
AX3 Project dependency cycles — not assessed — project cycles and dependency direction are computed over a project-reference graph that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX4 Dependency direction — not assessed — project cycles and dependency direction are computed over a project-reference graph that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX5 Architecture & structure — not assessed — architecture style/structure is computed from a project graph (projects, types, module namespaces) that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX6 Interface segregation — not assessed — interface segregation is computed over a type surface that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX7 Slice cohesion — not applicable — not a vertical-slice architecture
AX8 Test isolation — not assessed — test isolation is computed from a project graph (which projects are test projects, and what they reference) that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
AX9 CQS / query purity — no CQRS query handlers detected — query purity is not applicable to this codebase
AXB2 Runtime readiness — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
C1 Data Protection — Not assessed: these personal data controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks personal data controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C2 Access Controls — Not assessed: these authorization controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks authorization controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C3 Audit Trail — Not assessed: these audit controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks audit controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C4 Data Retention — Not assessed: these retention controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks retention controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
C5 Data-Subject Rights — Not assessed: these data-subject rights controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks data-subject rights controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
D10 Test Quality — ~21731 lines of test source are present (.go, .ts) but the test-quality collector reads C# only, so skipped/assertion-free tests couldn't be counted. Not scored — this is a gap in the analyzer, not a finding about this repository.
D11 Test Reliability — Test reliability not included
D12 Dependency Hygiene — Dependency hygiene not measured — dependency manifest found but not parsed for hygiene
D14 License Compliance — Not scored — this repository's package manifest is not parsed for licence data yet. A gap in the analyzer's language coverage, NOT a finding that the repository's licenses are compliant (a Go module (go.mod/go.sum) and package.json), which this pass does not parse yet — so this dimension asserts nothing about this repository's licensing in either direction.
D17 Explicit Debt — explicit-debt markers are read through a C# workspace today, so they were not read for this repository's language — this asserts nothing about how many markers the code carries. Not scored — this is a gap in the analyzer, not a finding about this repository
D18 Solution Shape — D18 scores the shape of a .NET solution; this repository has no .NET solution or project files, so the dimension does not apply.
D20 ADR Quality — N/A — ADRs are expected on deployable products with a user-facing host, not consumed libraries; no ADR log is required here.
D22 Internal API Consistency — No exposed public API
D23 Boundary Type-Coupling — Production source is present (.go, .mts, .ts) but bounded contexts are resolved over the C#/VB project set, which exposed none, so context scope could not be assessed. Not scored — this is a gap in the analyzer, not a verdict about this repository. Declaring the codebase's bounded contexts (≥2) would let cross-boundary type coupling be assessed — see the recommendation on this dimension for where. Declare them in `.codehealth/config.yaml` at the repository root (create it if absent), mapping each context name to the module-path or namespace prefixes that belong to it — e.g. `architecture:` → `contexts:` → `Billing: ["src/billing", "Acme.Billing"]`, `Catalog: ["src/catalog", "Acme.Catalog"]`.
D24 Comment Value — No inline comments to assess — comment value is not applicable here.
D25 ADR Conformance — no ADRs to check
D26 Project Cohesion — Project cohesion is assessed over the .NET project set; this target exposed no projects, so project size and spread could not be assessed. Not scored — this is a gap in the analyzer's reach, not a verdict about this repository.
D27 Navigability — No calls could be sampled, so navigability was not assessed — tracing effort is measured over resolved call sites and this target exposed none. Not scored — this is a gap in the analyzer's reach, not a verdict about this repository.
D30 Dependency Vulnerabilities — Not scored — no dependency manifest in a supported ecosystem was read for this repository. A gap in the analyzer's language coverage, NOT a finding that the repository is free of vulnerable dependencies (a Go module (go.mod/go.sum) and package.json — not scanned yet) — where an OSV-supported manifest exists, dependency vulnerabilities for this repository are reported under D38 instead.
D31 IaC & Container Security — No Infrastructure-as-Code or container manifests found (Dockerfile, Terraform, Kubernetes/Helm, CloudFormation); nothing to scan.
D32 Data Compliance (PII/GDPR) — No PII/GDPR-handling patterns detected (p/gdpr ruleset) — no data-compliance surface to assess.
D37 Vulnerability-disclosure Policy — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
D39 IL Efficiency — D39 measures the IL emitted by a .NET build; this repository has no .NET solution or project files, so the dimension does not apply.
D40 Network Egress Confinement — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.
D41 Kernel & Syscall Confinement — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.
D42 Runtime Threat Enforcement — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.
D5 Coupling — Inter-project coupling could not be assessed — no analyzable project graph was found for this repository. Not scored: a gap in the analyzer's reach, not a verdict about this repository. (Coupling here is Martin afferent/efferent/instability plus reference cycles across a project-reference graph, read today from .NET project files; other ecosystems' module graphs are not read yet.)
D6 Cohesion (LCOM4) — Cohesion (LCOM4) is measured over a C#/VB class graph, and this repository's production source is mostly .go, .mts, .ts, which this pass does not read, so cohesion was not assessed for this repository. Not scored — this is a gap in the analyzer, not a finding about this repository.
D7 Architectural Integrity — no checkable ADRs, and no project-reference graph for the cycle pass to read — so this dimension makes no claim about dependency cycles in either direction (where this repository's language has an import-cycle lens, cycles are reported there). Architectural integrity not assessed
D8 Code Coverage — Coverage not included — suite not readable by the collector
D9 Test Distribution — Test source is present (.go, .ts) but the test-pyramid classifier reads C# only, so its unit/integration/BDD/E2E split couldn't be counted. Not scored — this is a gap in the analyzer, not a finding about this repository.
DM1 Aggregate boundaries — no aggregates detected — aggregate-boundary check not applicable
DM2 Strongly-typed ids — no id-bearing domain types detected — strongly-typed-id adoption not assessable
DM3 Integration-event coupling — no integration events detected — coupling check not applicable
DM4 Rich vs anemic model — no data-bearing entities detected — rich-vs-anemic model not assessable
ED1 Event-Driven — not scored — this repository shows none of the 3 signals this check looks for
ED5 Idempotency — no mutating command handlers or message consumers detected — idempotency check not applicable
ES1 Event Sourcing — not scored — this repository shows none of the 3 signals this check looks for
GD1 Unfinished & placeholder code — no source files
IC1 Incompleteness & stubs — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
P12 CI test-gate honesty — Reported, not scored — and nothing was matched here. The coverage check applies to any stack, but the checks for excluded tests, skipped tests and sleep-based synchronisation currently recognise only some ecosystems' test-runner idioms, so on a repository built with another stack the zeros below mean 'not checked', not 'clean'.
P2 Observability — Observability was not assessed: this check reads a source model that does not carry this repository's product — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of a logging idiom this check recognises is NOT evidence that this repo lacks structured logging (it may log through its own ecosystem's logger). This is a gap in the analyzer, not a finding about this repository.
P5 DR & Backup — not evidenced — repo shows no backup/RTO/RPO controls; absence of evidence is not evidence of a working control
P7 Outbound HTTP resilience — not measured — the application kind could not be determined for this repo
P8 Schema migrations — not assessed — schema-migration practice is read from a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
P9 Domain vs controller coverage — no coverage report found on disk — produce a coverage report in a standard format (`go test -coverprofile=coverage.out ./...`) into the repo working tree before the scan — a CI step is the usual place, since the artefact is commonly gitignored, or wire coverage collection into CI, to enable this cross-layer check
PF1 Benchmark discipline — Performance was not assessed: this lens reads a source model that was not loaded for this repository, because the repository is written in a language this lens does not yet model or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository — in particular it is NOT a statement that this repo is unpackaged or performance-careless.
PF2 Allocation hygiene — Performance was not assessed: this lens reads a source model that was not loaded for this repository, because the repository is written in a language this lens does not yet model or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository — in particular it is NOT a statement that this repo is unpackaged or performance-careless.
PF3 Async & latency hygiene — Performance was not assessed: this lens reads a source model that was not loaded for this repository, because the repository is written in a language this lens does not yet model or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository — in particular it is NOT a statement that this repo is unpackaged or performance-careless.
R11 Import Boundaries — No recognizable feature-sliced/layered src layout — boundary rules not applicable.
S1 Web-Security Posture — Not assessed: these web-security controls are read from a source model (declarative annotations, request middleware, entity/column names, guard methods) that was not loaded for this repository — because the repository is written in a language this check does not yet model, or because its projects failed to load. Absence of an idiom this check recognises is NOT evidence that this repository lacks web-security controls: it may implement them entirely in its own ecosystem. This is a gap in the analyzer's language coverage, not a finding about this repository.
SC1 Supply-chain hygiene — Advisory — this card reports evidence and never carries a score, so there is nothing missing here.
X1 Async correctness — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X2 Cancellation propagation — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X3 Exception handling — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X4 Structured logging — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
X5 Nullable reference types — not analysed — these correctness checks read a source model that was not loaded for this repository, because the repository is written in a language this check does not yet model, or because its projects failed to load. This is a gap in the analyzer, not a finding about this repository
Appendix A — Findings (grouped)
The findings behind the scores, grouped by severity, then by dimension and kind. The high-severity issues are enumerated in full below; items per group are capped at 25 with any overflow stated explicitly per group, never silently truncated. The complete machine-readable list of every finding (all severities) is the companion findings.md in this report's bundle.
High: github-actions-mutable-action-tag .github/workflows/build-and-push-image.yml:22— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/checkout@<40-character SHA>`. This step references `actions/checkout@v6`; resolve the SHA it points at today with `gh api repos/actions/checkout/commits/v6 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/build-and-push-image.yml:27— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: docker/setup-qemu-action@<40-character SHA>`. This step references `docker/setup-qemu-action@v4`; resolve the SHA it points at today with `gh api repos/docker/setup-qemu-action/commits/v4 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/build-and-push-image.yml:30— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: docker/setup-buildx-action@<40-character SHA>`. This step references `docker/setup-buildx-action@v4`; resolve the SHA it points at today with `gh api repos/docker/setup-buildx-action/commits/v4 --jq .sha`.
High: run-shell-injection .github/workflows/build-and-push-image.yml:34— Using variable interpolation `${{...}}` with `github` context data in a `run:` step could allow an attacker to inject their own code into the runner. This would allow them to steal secrets and code. `github` context data can have arbitrary user input and should be treated as untrusted. Instead, use an intermediate environment variable with `env:` to store the data and use the environment variable in the `run:` script. Reference it as a shell VARIABLE rather than a `${{ }}` interpolation, using your shell's own syntax (`"$ENVVAR"` in bash, `$env:ENVVAR` in PowerShell), so the value is passed as data and never re-expanded as code.
High: github-actions-mutable-action-tag .github/workflows/build-and-push-image.yml:41— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: docker/login-action@<40-character SHA>`. This step references `docker/login-action@v4`; resolve the SHA it points at today with `gh api repos/docker/login-action/commits/v4 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/build-and-push-image.yml:47— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: docker/login-action@<40-character SHA>`. This step references `docker/login-action@v4`; resolve the SHA it points at today with `gh api repos/docker/login-action/commits/v4 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/build-and-push-image.yml:64— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: docker/build-push-action@<40-character SHA>`. This step references `docker/build-push-action@v7`; resolve the SHA it points at today with `gh api repos/docker/build-push-action/commits/v7 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/build-and-push-image.yml:75— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: docker/build-push-action@<40-character SHA>`. This step references `docker/build-push-action@v7`; resolve the SHA it points at today with `gh api repos/docker/build-push-action/commits/v7 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/golangci-lint.yml:17— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/checkout@<40-character SHA>`. This step references `actions/checkout@v6`; resolve the SHA it points at today with `gh api repos/actions/checkout/commits/v6 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/golangci-lint.yml:18— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/setup-go@<40-character SHA>`. This step references `actions/setup-go@v6`; resolve the SHA it points at today with `gh api repos/actions/setup-go/commits/v6 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/golangci-lint.yml:22— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/setup-node@<40-character SHA>`. This step references `actions/setup-node@v6`; resolve the SHA it points at today with `gh api repos/actions/setup-node/commits/v6 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/golangci-lint.yml:28— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: golangci/golangci-lint-action@<40-character SHA>`. This step references `golangci/golangci-lint-action@v9`; resolve the SHA it points at today with `gh api repos/golangci/golangci-lint-action/commits/v9 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/goreleaser.yml:11— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/checkout@<40-character SHA>`. This step references `actions/checkout@v6`; resolve the SHA it points at today with `gh api repos/actions/checkout/commits/v6 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/goreleaser.yml:16— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/setup-go@<40-character SHA>`. This step references `actions/setup-go@v6`; resolve the SHA it points at today with `gh api repos/actions/setup-go/commits/v6 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/goreleaser.yml:19— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/setup-node@<40-character SHA>`. This step references `actions/setup-node@v6`; resolve the SHA it points at today with `gh api repos/actions/setup-node/commits/v6 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/goreleaser.yml:33— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: goreleaser/goreleaser-action@<40-character SHA>`. This step references `goreleaser/goreleaser-action@v7`; resolve the SHA it points at today with `gh api repos/goreleaser/goreleaser-action/commits/v7 --jq .sha`.
High: github-actions-mutable-action-tag .github/workflows/stale.yml:22— GitHub Actions step uses a mutable tag or branch reference. Tags and branch names can be silently repointed by the action owner, enabling supply-chain attacks — as seen in the trivy-action and kics-github-action compromises. Pin the reference to a full 40-character commit SHA instead, e.g. `uses: actions/stale@<40-character SHA>`. This step references `actions/stale@v10`; resolve the SHA it points at today with `gh api repos/actions/stale/commits/v10 --jq .sha`.
D38 · OSV Dependency Vulnerabilities· High CVE · ×3
High CVE: [GHSA redacted] web/package-lock.json— brace-expansion 1.1.16: [GHSA redacted] — brace-expansion is not declared in this repo's manifests: it is pulled in transitively, so upgrade the dependency that requires it (or pin brace-expansion to 1.1.17 with an `overrides` entry). This is 1 of 2 advisories with a published fix this scan raises against brace-expansion 1.1.16, and their fixed versions do not agree — anything below 1.1.18 still leaves at least one of them open. Take this package to 1.1.18 or later: that is the floor for the package, not this row's target alone. This one row stands for the 2 advisories this scan raises against brace-expansion 1.1.16: [GHSA redacted], [GHSA redacted].
High CVE: [GHSA redacted] web/package-lock.json— brace-expansion 2.1.2: [GHSA redacted] — brace-expansion is not declared in this repo's manifests: it is pulled in transitively, so upgrade the dependency that requires it (or pin brace-expansion to 2.1.3 with an `overrides` entry). This is 1 of 2 advisories with a published fix this scan raises against brace-expansion 2.1.2, and their fixed versions do not agree — anything below 2.1.4 still leaves at least one of them open. Take this package to 2.1.4 or later: that is the floor for the package, not this row's target alone. This one row stands for the 2 advisories this scan raises against brace-expansion 2.1.2: [GHSA redacted], [GHSA redacted].
High CVE: [GHSA redacted] web/package-lock.json— brace-expansion 5.0.8: [GHSA redacted] — brace-expansion is not declared in this repo's manifests: it is pulled in transitively, so upgrade the dependency that requires it (or pin brace-expansion to 5.0.9 with an `overrides` entry).
Hotspot: server/service.go server/service.go— server/service.go changed 6 times in last 90 days, max complexity 30. 1 of those changes was a fix/bug commit, and the other 5 changed it for other reasons — this file is under both repair and feature pressure. Before the next change lands here, cover the area it touches with tests, then split that area out of the file so the following change is smaller than this one — a file this often edited pays the complexity back every time.
Hotspot: server/http/controller_v2.go server/http/controller_v2.go— server/http/controller_v2.go changed 8 times in last 90 days, max complexity 17. Frequent change and high complexity in one file compound: schedule the next change to it to include carving out the part being edited, behind tests written first.
Hotspot: web/frps/src/views/Proxies.vue web/frps/src/views/Proxies.vue— web/frps/src/views/Proxies.vue changed 6 times in last 90 days, max complexity 15. Frequent change and high complexity in one file compound: schedule the next change to it to include carving out the part being edited, behind tests written first.
Hotspot: server/proxy/udp.go server/proxy/udp.go— server/proxy/udp.go changed 2 times in last 90 days, max complexity 27. Frequent change and high complexity in one file compound: schedule the next change to it to include carving out the part being edited, behind tests written first.
Hotspot: client/proxy/sudp.go client/proxy/sudp.go— client/proxy/sudp.go changed 2 times in last 90 days, max complexity 17. Frequent change and high complexity in one file compound: schedule the next change to it to include carving out the part being edited, behind tests written first.
Hotspot: server/registry/registry.go server/registry/registry.go— server/registry/registry.go changed 2 times in last 90 days, max complexity 16. 1 of those changes was a fix/bug commit, and the other 1 changed it for other reasons — this file is under both repair and feature pressure. Before the next change lands here, cover the area it touches with tests, then split that area out of the file so the following change is smaller than this one — a file this often edited pays the complexity back every time.
Hotspot: web/frps/src/views/ClientDetail.vue web/frps/src/views/ClientDetail.vue— web/frps/src/views/ClientDetail.vue changed 2 times in last 90 days, max complexity 15. Frequent change and high complexity in one file compound: schedule the next change to it to include carving out the part being edited, behind tests written first.
Hotspot: web/frps/src/views/ProxyDetail.vue web/frps/src/views/ProxyDetail.vue— web/frps/src/views/ProxyDetail.vue changed 2 times in last 90 days, max complexity 15. Frequent change and high complexity in one file compound: schedule the next change to it to include carving out the part being edited, behind tests written first.
Duplicated block (9 lines × 2) client/proxy/sudp.go:84— client/proxy/sudp.go:84-92 | client/proxy/udp.go:95-104 — the copies sit in sibling files of one directory: extract the block into a single shared function in that directory and call it from each site, so a change lands once. Read the line range as the matched WINDOW rather than a finished unit: at `client/proxy/sudp.go:84` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 2) pkg/config/legacy/value.go:27— pkg/config/legacy/value.go:27-35 | pkg/config/load.go:44-52 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice.
Duplicated block (9 lines × 2) pkg/sdk/client/client.go:36— pkg/sdk/client/client.go:36-44 | pkg/sdk/client/client.go:59-67 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (9 lines × 2) pkg/util/http/handler.go:42— pkg/util/http/handler.go:42-50 | pkg/util/http/handler.go:78-86 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `pkg/util/http/handler.go:42` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (9 lines × 2) server/http/controller.go:120— server/http/controller.go:120-128 | server/http/controller_v2.go:185-193 — the copies sit in sibling files of one directory: extract the block into a single shared function in that directory and call it from each site, so a change lands once. Read the line range as the matched WINDOW rather than a finished unit: at `server/http/controller.go:120` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
Medium: use-of-md5 pkg/nathole/controller.go:75— Detected MD5 hash algorithm which is considered insecure. MD5 is not collision resistant and is therefore not suitable as a cryptographic signature. Use SHA256 or SHA3 instead. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Medium: math-random-used pkg/nathole/nathole.go:20— `math/rand` is not cryptographically secure — its stream is reproducible from its seed and predictable from observed output — so any value that must be unguessable (a token, nonce, key, salt, session id, password-reset or MFA code) has to come from `crypto/rand`. Where non-cryptographic randomness IS the intent — jitter, backoff, sampling, load spreading, simulation, test fixtures, or output that is deliberately reproducible from a seed — `math/rand` is the correct choice and no change is needed; a package that deliberately offers both should keep its security-sensitive callers on the `crypto/rand` path rather than drop the other one. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Medium: use-of-md5 pkg/util/util/util.go:51— Detected MD5 hash algorithm which is considered insecure. MD5 is not collision resistant and is therefore not suitable as a cryptographic signature. Use SHA256 or SHA3 instead. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Medium: math-random-used pkg/util/wait/backoff.go:18— `math/rand` is not cryptographically secure — its stream is reproducible from its seed and predictable from observed output — so any value that must be unguessable (a token, nonce, key, salt, session id, password-reset or MFA code) has to come from `crypto/rand`. Where non-cryptographic randomness IS the intent — jitter, backoff, sampling, load spreading, simulation, test fixtures, or output that is deliberately reproducible from a seed — `math/rand` is the correct choice and no change is needed; a package that deliberately offers both should keep its security-sensitive callers on the `crypto/rand` path rather than drop the other one. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Duplicated block (8 lines × 2) client/http/controller.go:243— client/http/controller.go:243-250 | client/http/controller.go:278-285 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `client/http/controller.go:243` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
Duplicated block (8 lines × 2) client/http/controller.go:359— client/http/controller.go:359-366 | client/http/controller.go:394-401 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `client/http/controller.go:359` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
Duplicated block (8 lines × 2) pkg/auth/auth.go:43— pkg/auth/auth.go:43-50 | pkg/auth/auth.go:101-108 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `pkg/auth/auth.go:43` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
Duplicated block (8 lines × 2) pkg/config/legacy/conversion.go:30— pkg/config/legacy/conversion.go:30-37 | pkg/config/legacy/conversion.go:91-98 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited.
Duplicated block (7 lines × 2) client/http/controller.go:285— client/http/controller.go:285-291 | client/http/controller.go:401-407 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `client/http/controller.go:285` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (7 lines × 2) pkg/config/load.go:517— pkg/config/load.go:517-524 | pkg/config/legacy/parse.go:82-88 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `pkg/config/load.go:517` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
Duplicated block (7 lines × 2) pkg/msg/udp_binary.go:304— pkg/msg/udp_binary.go:304-310 | pkg/msg/wire_v2.go:143-150 — the copies sit in sibling files of one directory: extract the block into a single shared function in that directory and call it from each site, so a change lands once.
Duplicated block (7 lines × 2) server/proxy/http.go:141— server/proxy/http.go:141-147 | server/proxy/udp.go:219-225 — the copies sit in sibling files of one directory: extract the block into a single shared function in that directory and call it from each site, so a change lands once. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
FileTooLong: server/service.go server/service.go:0— FileTooLong — 595 significant lines (blank, comment-only and punctuation-only lines excluded). To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
FileTooLong: server/control.go server/control.go:0— FileTooLong — 588 significant lines (blank, comment-only and punctuation-only lines excluded). To reduce it, split the file along the responsibilities already in it: move each cohesive group of declarations into its own sibling file in the same module or package, so no one file has to be read whole to change one of them.
D38 · OSV Dependency Vulnerabilities· Medium CVE · ×2
Medium CVE: [GHSA redacted] go.mod— github.com/Azure/go-ntlmssp 0.1.0: [GHSA redacted] — github.com/Azure/go-ntlmssp is not a DIRECT requirement of this module: go.mod records it as `// indirect`, pulled in transitively, so raise it in place (run `go get github.com/Azure/go-ntlmssp@v0.1.1`, which updates the require line go.mod already holds for it).
Medium CVE: GO-2025-3955 go.mod— stdlib 1.25.0 (net/http): GO-2025-3955 — fixed in Go 1.25.1; pin a build toolchain at or above it (go.mod `toolchain` directive, or your CI's Go version) — the `go` directive is a minimum language version, not the compiler that builds your binaries. This one row stands for the 39 advisories this scan raises against stdlib 1.25.0: GO-2025-3955, GO-2025-4006, GO-2025-4007, GO-2025-4008, GO-2025-4009, GO-2025-4010, GO-2025-4011, GO-2025-4012, GO-2025-4013, GO-2025-4014, GO-2025-4015, GO-2025-4155, GO-2025-4175, GO-2026-4337, GO-2026-4340, GO-2026-4341, GO-2026-4342, GO-2026-4601, GO-2026-4602, GO-2026-4603, GO-2026-4864, GO-2026-4865, GO-2026-4869, GO-2026-4870, GO-2026-4918, GO-2026-4946, GO-2026-4947, GO-2026-4970, GO-2026-4971, GO-2026-4976, GO-2026-4977, GO-2026-4980, GO-2026-4981, GO-2026-4982, GO-2026-4986, GO-2026-5037, GO-2026-5038, GO-2026-5039, GO-2026-5856.
Duplicated block (11 lines × 2) client/config_manager.go:395— client/config_manager.go:395-405 | client/config_manager.go:421-431 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `client/config_manager.go:395` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also register a scope-exit action (a `defer`-style statement) that runs when the function holding them returns: moved into a called unit it would run when THAT unit returns instead — before the caller uses what it releases — so keep the registration at the call site and extract only the work around it, or have the extracted unit hand the resource back for the caller to register.
Duplicated block (11 lines × 2) cmd/frpc/sub/proxy.go:79— cmd/frpc/sub/proxy.go:79-90 | cmd/frpc/sub/proxy.go:112-122 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `cmd/frpc/sub/proxy.go:79` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) client/api_router.go:57— client/api_router.go:57-61 | server/api_router.go:63-68 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `client/api_router.go:57` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (5 lines × 2) cmd/frpc/sub/admin.go:76— cmd/frpc/sub/admin.go:76-80 | cmd/frpc/sub/admin.go:116-120 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `cmd/frpc/sub/admin.go:76` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that. The matched lines also register a scope-exit action (a `defer`-style statement) that runs when the function holding them returns: moved into a called unit it would run when THAT unit returns instead — before the caller uses what it releases — so keep the registration at the call site and extract only the work around it, or have the extracted unit hand the resource back for the caller to register. Note that the copies do not run to the end of the range shown: their LAST lines are different code, not the same code under different names — the matched region ends inside that line. Extract the lines above it, and read the last line of each site separately.
server.NewService (cyclomatic 30) server/service.go:138— server.NewService has cyclomatic complexity 30 (threshold 15). Of this number, 29 points are the body's own statements and 1 belongs to one function literal inside it that branches. To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UDPProxy.Run (cyclomatic 27) server/proxy/udp.go:78— UDPProxy.Run has cyclomatic complexity 27 (threshold 15). Most of this is not in the body itself: 4 of the 27 points are its own statements and the rest belongs to 4 function literals inside it that branch (lines 184, 111, 156, …). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
nathole.MakeHole (cyclomatic 23) pkg/nathole/nathole.go:192— nathole.MakeHole has cyclomatic complexity 23 (threshold 15). Of this number, 21 points are the body's own statements and 2 belong to one function literal inside it that branches. To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
legacy.LoadAllProxyConfsFromIni (cyclomatic 19) pkg/config/legacy/client.go:204— legacy.LoadAllProxyConfsFromIni has cyclomatic complexity 19 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
SUDPProxy.InWorkConn (cyclomatic 17) client/proxy/sudp.go:79— SUDPProxy.InWorkConn has cyclomatic complexity 17 (threshold 15). Most of this is not in the body itself: 3 of the 17 points are its own statements and the rest belongs to 4 function literals inside it that branch (lines 119, 147, 170, …). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
http.buildV2ProxySpec (cyclomatic 17) server/http/controller_v2.go:564— http.buildV2ProxySpec has cyclomatic complexity 17 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
controlSessionDialer.exchangeLogin (cyclomatic 16) client/control_session.go:136— controlSessionDialer.exchangeLogin has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
nathole.ClassifyNATFeature (cyclomatic 16) pkg/nathole/classify.go:42— nathole.ClassifyNATFeature has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
Controller.APIV2ClientList (cyclomatic 16) server/http/controller_v2.go:143— Controller.APIV2ClientList has cyclomatic complexity 16 (threshold 15). Of this number, 14 points are the body's own statements and 2 belong to one function literal inside it that branches. To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
ClientRegistry.RegisterWithControlID (cyclomatic 16) server/registry/registry.go:74— ClientRegistry.RegisterWithControlID has cyclomatic complexity 16 (threshold 15). To reduce it, split the body: these branches sit side by side rather than nested inside one another, so extracting each one on its own would leave a function per branch. Group the statements between the checks into named steps and move each step into its own function, so the body reads as a short sequence of named stages.
Service.handleConnection (cyclomatic 16) server/service.go:442— Service.handleConnection has cyclomatic complexity 16 (threshold 15). To reduce it, separate the cases: extract each independent branch into its own named function, and where the body has guards that only reject input, fold those into early returns at the top.
UDPProxy.Run (cognitive 48) server/proxy/udp.go:78— UDPProxy.Run has cognitive complexity 48 (threshold 15). Drivers by points: if/else 38, match/switch 7, loops 3 (nesting depth added 24). Most of this is not in the body itself: 3 of the 48 points are its own statements and the rest belongs to 4 function literals inside it that branch (lines 184, 111, 156, …). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
server.NewService (cognitive 47) server/service.go:138— server.NewService has cognitive complexity 47 (threshold 15). Drivers by points: if/else 45, boolean chains 1, loops 1 (nesting depth added 16). Of this number, 46 points are the body's own statements and 1 belongs to one function literal inside it that branches. To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
nathole.MakeHole (cognitive 37) pkg/nathole/nathole.go:192— nathole.MakeHole has cognitive complexity 37 (threshold 15). Drivers by points: if/else 23, loops 11, match/switch 3 (nesting depth added 16). Of this number, 33 points are the body's own statements and 4 belong to one function literal inside it that branches. To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Service.handleConnection (cognitive 33) server/service.go:442— Service.handleConnection has cognitive complexity 33 (threshold 15). Drivers by points: if/else 32, match/switch 1 (nesting depth added 18). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Manager.Acquire (cognitive 30) server/ports/ports.go:82— Manager.Acquire has cognitive complexity 30 (threshold 15). Drivers by points: if/else 28, loops 2 (nesting depth added 14). Of this number, 29 points are the body's own statements and 1 belongs to one function literal inside it that branches. To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
config.LoadAdditionalClientConfigs (cognitive 27) pkg/config/load.go:502— config.LoadAdditionalClientConfigs has cognitive complexity 27 (threshold 15). Drivers by points: if/else 16, loops 11 (nesting depth added 17). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
legacy.LoadAllProxyConfsFromIni (cognitive 26) pkg/config/legacy/client.go:204— legacy.LoadAllProxyConfsFromIni has cognitive complexity 26 (threshold 15). Drivers by points: if/else 18, loops 4, boolean chains 2, match/switch 2 (nesting depth added 10). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
udp.Forwarder (cognitive 26) pkg/proto/udp/udp.go:73— udp.Forwarder has cognitive complexity 26 (threshold 15). Drivers by points: if/else 21, loops 2, match/switch 2, boolean chains 1 (nesting depth added 12). Most of this is not in the body itself: 0 of the 26 points are its own statements and the rest belongs to 2 function literals inside it that branch (lines 109, 78). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
ControlManager.Add (cognitive 26) server/control.go:109— ControlManager.Add has cognitive complexity 26 (threshold 15). Drivers by points: if/else 25, loops 1 (nesting depth added 14). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
controlSessionDialer.exchangeLogin (cognitive 23) client/control_session.go:136— controlSessionDialer.exchangeLogin has cognitive complexity 23 (threshold 15). Drivers by points: if/else 22, boolean chains 1 (nesting depth added 9). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Controller.readLoopServer (cognitive 23) pkg/vnet/controller.go:193— Controller.readLoopServer has cognitive complexity 23 (threshold 15). Drivers by points: if/else 21, boolean chains 1, loops 1 (nesting depth added 12). Of this number, 22 points are the body's own statements and 1 belongs to one function literal inside it that branches. To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
SUDPProxy.InWorkConn (cognitive 22) client/proxy/sudp.go:79— SUDPProxy.InWorkConn has cognitive complexity 22 (threshold 15). Drivers by points: if/else 13, match/switch 6, loops 3 (nesting depth added 8). Most of this is not in the body itself: 2 of the 22 points are its own statements and the rest belongs to 4 function literals inside it that branch (lines 119, 170, 147, …). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
config.LoadClientConfigResult (cognitive 22) pkg/config/load.go:346— config.LoadClientConfigResult has cognitive complexity 22 (threshold 15). Drivers by points: if/else 13, loops 8, boolean chains 1 (nesting depth added 8). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
BaseProxy.startCommonTCPListenersHandler (cognitive 22) server/proxy/proxy.go:232— BaseProxy.startCommonTCPListenersHandler has cognitive complexity 22 (threshold 15). Drivers by points: if/else 18, loops 3, boolean chains 1 (nesting depth added 14). Most of this is not in the body itself: 1 of the 22 points is its own statement and the rest belongs to one function literal inside it that branches (line 235). The decisions are inside the literal, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literal's work into a named function or method at the enclosing scope and have the literal call it, then reduce whichever part then reads as the largest.
Service.HandleListener (cognitive 22) server/service.go:684— Service.HandleListener has cognitive complexity 22 (threshold 15). Drivers by points: if/else 17, loops 4, boolean chains 1 (nesting depth added 12). Most of this is not in the body itself: 8 of the 22 points are its own statements and the rest belongs to one function literal inside it that branches (line 713). The decisions are inside the literal, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literal's work into a named function or method at the enclosing scope and have the literal call it, then reduce whichever part then reads as the largest.
SUDPVisitor.worker (cognitive 21) client/visitor/sudp.go:113— SUDPVisitor.worker has cognitive complexity 21 (threshold 15). Drivers by points: if/else 15, match/switch 4, loops 2 (nesting depth added 10). Most of this is not in the body itself: 1 of the 21 points is its own statement and the rest belongs to 2 function literals inside it that branch (lines 167, 129). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
nathole.ClassifyNATFeature (cognitive 20) pkg/nathole/classify.go:42— nathole.ClassifyNATFeature has cognitive complexity 20 (threshold 15). Drivers by points: if/else 16, boolean chains 2, loops 1, match/switch 1 (nesting depth added 7). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
fastBackoffImpl.Backoff (cognitive 20) pkg/util/wait/backoff.go:77— fastBackoffImpl.Backoff has cognitive complexity 20 (threshold 15). Drivers by points: if/else 18, boolean chains 2 (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Controller.APIV2ClientList (cognitive 20) server/http/controller_v2.go:143— Controller.APIV2ClientList has cognitive complexity 20 (threshold 15). Drivers by points: if/else 15, boolean chains 4, loops 1 (nesting depth added 5). Of this number, 18 points are the body's own statements and 2 belong to one function literal inside it that branches. To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
legacy.getIncludeContents (cognitive 19) pkg/config/legacy/parse.go:68— legacy.getIncludeContents has cognitive complexity 19 (threshold 15). Drivers by points: if/else 16, loops 3 (nesting depth added 11). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
util.ParseRangeNumbers (cognitive 18) pkg/util/util/util.go:67— util.ParseRangeNumbers has cognitive complexity 18 (threshold 15). Drivers by points: if/else 12, loops 4, match/switch 2 (nesting depth added 11). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
Wrapper.checkWorker (cognitive 17) client/proxy/proxy_wrapper.go:195— Wrapper.checkWorker has cognitive complexity 17 (threshold 15). Drivers by points: if/else 10, boolean chains 4, match/switch 2, loops 1 (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
ClientCommonConf.Validate (cognitive 17) pkg/config/legacy/client.go:362— ClientCommonConf.Validate has cognitive complexity 17 (threshold 15). Drivers by points: if/else 15, boolean chains 1, loops 1 (nesting depth added 6). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
VirtualNetPlugin.run (cognitive 17) pkg/plugin/visitor/virtual_net.go:101— VirtualNetPlugin.run has cognitive complexity 17 (threshold 15). Drivers by points: if/else 9, match/switch 7, loops 1 (nesting depth added 9). To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
vhost.NewHTTPReverseProxy (cognitive 17) pkg/util/vhost/http.go:49— vhost.NewHTTPReverseProxy has cognitive complexity 17 (threshold 15). Drivers by points: if/else 12, loops 4, boolean chains 1 (nesting depth added 5). Most of this is not in the body itself: 1 of the 17 points is its own statement and the rest belongs to 4 function literals inside it that branch (lines 59, 128, 94, …). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
http.buildV2ProxySpec (cognitive 17) server/http/controller_v2.go:564— http.buildV2ProxySpec has cognitive complexity 17 (threshold 15). Drivers by points: if/else 16, match/switch 1 (nesting depth added 8). The drivers above price the dispatch low by construction — a dispatch is charged once however many cases it lists, while each branch inside an arm is charged in full — so most of this count is what the case bodies hold, and the arms are where it can be reduced. To reduce it, keep the dispatch but shrink the arms: move each non-trivial case body into its own named function (or onto the value being matched) so the dispatch reads one line per case, and group related cases into a sub-dispatch. Keep every case explicit, and make the behaviour for cases you do not list a deliberate choice rather than an accident.
HTTPProxy.Run (cognitive 17) server/proxy/http.go:55— HTTPProxy.Run has cognitive complexity 17 (threshold 15). Drivers by points: if/else 14, loops 3 (nesting depth added 9). Of this number, 16 points are the body's own statements and 1 belongs to one function literal inside it that branches. To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
TunnelServer.waitForwardAddrAndExtraPayload (cognitive 16) pkg/ssh/server.go:200— TunnelServer.waitForwardAddrAndExtraPayload has cognitive complexity 16 (threshold 15). Drivers by points: if/else 9, loops 3, boolean chains 2, match/switch 2 (nesting depth added 6). Most of this is not in the body itself: 6 of the 16 points are its own statements and the rest belongs to 2 function literals inside it that branch (lines 209, 227). The decisions are inside those literals, which nothing outside this body can call, review or test on its own, so splitting the enclosing body is not the move available here. To reduce it, lift the literals' work into a named function or method at the enclosing scope and have each literal call it, then reduce whichever part then reads as the largest.
Controller.APIV2ProxyList (cognitive 16) server/http/controller_v2.go:221— Controller.APIV2ProxyList has cognitive complexity 16 (threshold 15). Drivers by points: if/else 12, boolean chains 3, loops 1 (nesting depth added 4). Of this number, 15 points are the body's own statements and 1 belongs to one function literal inside it that branches. To reduce it, split the body into named stages: move each independent step or branch into its own named function so the body reads as a short sequence of named calls rather than one long body.
ClientRegistry.RegisterWithControlID (cognitive 16) server/registry/registry.go:74— ClientRegistry.RegisterWithControlID has cognitive complexity 16 (threshold 15). Drivers by points: if/else 13, boolean chains 3 (nesting depth added 3). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition, and where an else follows a branch that already returns, drop the trailing else and let the rest of the body continue at one level.
Service.RegisterControl (cognitive 16) server/service.go:766— Service.RegisterControl has cognitive complexity 16 (threshold 15). Drivers by points: if/else 13, boolean chains 2, match/switch 1 (nesting depth added 3). To reduce it, split the body: most of this score is breadth rather than depth — checks laid out side by side rather than stacked — so group the statements between the checks into named steps and move each step into its own function. Some of it IS depth: where a check sits inside another whose only job is to reach it, merge the two into one condition.
Change coupling: client.go ↔ server.go pkg/config/legacy/client.go— `pkg/config/legacy/client.go` and `pkg/config/legacy/server.go` change together 71% of the time (12 of the 17 commits that touched whichever of the two files changed less often, counting a file under its earlier names as well). They sit in the same directory, and in this ecosystem sibling files there normally share one namespace/package — so a direct reference between them needs no import and this pass cannot see whether one exists. Read the pair before acting: if one file only DECLARES what the other consumes (a constants/types file beside its user), the co-change is definitional and the question is whether the split earns its keep; if they duplicate structure, extract the common part into a shared function or type they both call; if neither holds, the coupling is hidden and worth breaking.
Unpinned build actions — CI references GitHub Actions by a floating ref (@main / @tag) rather than a pinned commit SHA, weakening build integrity. 16 floating ref(s) across 4 workflow file(s). Each floating ref is itemized at file:line by the SAST (D29) lens.
D38 · OSV Dependency Vulnerabilities· Medium vulnerability · ×1
Medium vulnerability: GO-2026-5932 go.mod— golang.org/x/crypto 0.54.0 (golang.org/x/crypto/openpgp, golang.org/x/crypto/openpgp/packet, golang.org/x/crypto/openpgp/armor, +4 more): GO-2026-5932 — no fixed version has been published yet. Track the advisory, and remove or replace golang.org/x/crypto if the exposure is not acceptable until one lands. Before doing either, check whether any affected package above is actually linked here: `go list -deps ./... | grep -F -e golang.org/x/crypto/openpgp` lists it whether your own code imports it or a dependency pulls it in — a module can be in the build list for one sub-package while the vulnerable one is never reached, in which case there is nothing to remove and tracking the advisory is the whole action.
Duplicated block (16 lines × 2) client/http/model/proxy_definition.go:122— client/http/model/proxy_definition.go:122-138 | client/http/model/visitor_definition.go:82-97 — the copies sit in sibling files of one directory: extract the block into a single shared function in that directory and call it from each site, so a change lands once. The matched lines also transfer control out of the body holding them, which cannot survive a move into a called unit unchanged: have the extracted unit return that decision and let each site act on it.
Duplicated block (13 lines × 2) client/proxy/xtcp.go:63— client/proxy/xtcp.go:63-75 | client/visitor/xtcp.go:258-270 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `client/proxy/xtcp.go:63` it begins part-way through the construct above it, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (12 lines × 2) server/proxy/proxy.go:461— server/proxy/proxy.go:461-472 | server/proxy/proxy.go:485-496 — both copies are in the same file, so extract the block into one function there and call it from each site — the copies drift apart the first time only one of them is edited. Read the line range as the matched WINDOW rather than a finished unit: at `server/proxy/proxy.go:461` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Duplicated block (10 lines × 2) pkg/config/types/types.go:140— pkg/config/types/types.go:140-149 | pkg/util/util/util.go:71-80 — the copies span different directories, so extracting a shared function means choosing where it lives: put it somewhere both call sites can already reach — a location they all depend on today, or a new shared one if there is none — and call it from each site; until then, every change has to be made twice. Read the line range as the matched WINDOW rather than a finished unit: at `pkg/config/types/types.go:140` it does not close everything it opens, so those exact lines cannot be lifted as they stand — widen the region to the smallest complete statement or declaration that contains it, and extract that.
Low: missing-ssl-minversion pkg/auth/oidc.go:44— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/plugin/client/http2https.go:45— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/plugin/client/https2https.go:45— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/plugin/server/http.go:46— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/transport/tls.go:97— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/transport/tls.go:129— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/util/http/server.go:82— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/util/vhost/https.go:59— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
Low: missing-ssl-minversion pkg/util/vhost/https.go:75— `MinVersion` is missing from this TLS configuration. By default, as of Go 1.22, TLS 1.2 is currently used as the minimum. Set `MinVersion` EXPLICITLY so the floor is a decision in your code rather than whatever the toolchain currently defaults to. Which version depends on who the peer is: for a server, or for a client that talks only to endpoints you control, `tls.VersionTLS13`; for a client that must reach third-party servers (a package registry, a webhook target, an on-prem service), `tls.VersionTLS12` — pinning 1.3 there refuses to connect to peers that still terminate at 1.2. This is a semgrep security-AUDIT rule: it reports that a sensitive pattern is present, not that it is exploitable here. Confirm whether the flagged value reaches a security decision — a credential, token, nonce, key, salt or session id, or an externally reachable surface — and apply the change where it does; where it provably does not (cosmetic, simulation, or deliberately reproducible use), record the review and leave the code as it is.
D11 · Test Reliability· Test reliability not included · ×1
Test reliability not included — Test source is present (.go, .ts) but the built-in reliability runner does not support this repository's ecosystem, so flakiness couldn't be assessed. Not scored — this is a gap in the analyzer's language coverage, not a finding about this repository.
Off-boarding risk: anonymized user #1 — If anonymized user #1 becomes unavailable, 49 significant file(s) lose their only recent owner: server/service.go, server/control.go, server/http/controller_v2.go, server/proxy/proxy.go, pkg/config/legacy/conversion.go, client/visitor/xtcp.go, pkg/nathole/controller.go, pkg/config/flags.go (+41 more). Pair on, review, or document these before any departure.
D34 · Knowledge Freshness· Further orphaned files (smaller) · ×1
Further orphaned files (smaller) — 1 of 123 analysed file(s) have no living knowledge left — their last meaningful change has decayed away, so if one breaks, no one currently understands it (counted over production source files of roughly 100 lines or more, excluding tests, vendored, generated and example/demo trees, largest first). None is large enough to earn a read-through of its own, so this row stands in for the per-file rows rather than raising one each — largest first: pkg/util/http/http.go. Attach the read to the next change that touches one of them: have a second person review that change, and leave behind a short comment or test recording what the file is for, so the knowledge comes back at the cost of a change you were making anyway.
No build provenance — No SLSA provenance generation or build attestation found in CI — nothing binds a released artifact to the build that produced it, so a consumer cannot tell your artifact from a substituted one. On GitHub Actions, `actions/attest-build-provenance` (or slsa-github-generator) emits one from the job's own OIDC identity; elsewhere, run `cosign attest` over the released artifact from the release pipeline and publish the attestation beside it.
No artifact signing — No artifact signing found in CI — sign your released artifacts with whatever your ecosystem ships (a GPG/minisign detached signature — or `cosign sign-blob` — over the release archives, or over a checksum file published alongside them, a `signs:` block in `.goreleaser.yml` (cosign keyless or GPG over the checksums file), which GoReleaser then runs for every release artifact) so consumers can verify what you built.
D36 · Supply-chain Provenance & Signing· No SBOM · ×1
No SBOM — No SBOM generation or committed SBOM found — produce one with what your ecosystem ships (an `sboms:` block in `.goreleaser.yml`, which GoReleaser runs on the release you already cut and attaches the document beside the artifacts, `cyclonedx-gomod` over the module graph — or Go's own build info, which already records the module set in the binary, `syft` (or `anchore/sbom-action` in CI) over the source tree or released image). Publish it as a release asset (`*.spdx.json` / `*.cdx.json`) so consumers can see what they are installing.
Coverage not included — suite not readable by the collector — Coverage NOT MEASURED: test source is present (.go, .ts) but the built-in coverage collector has no runner for this repository's ecosystem — so this suite was never executed by it. Not scored — this is a gap in the analyzer's language coverage, not a defect in the repo. To have real coverage read, produce a coverage report in a standard format (`go test -coverprofile=coverage.out ./...`, or lcov — `vitest --coverage`, `jest --coverage`, `bun test --coverage --coverage-reporter=lcov`, or `nyc`) into the repo working tree before the scan — a CI step is the usual place, since the artefact is commonly gitignored.
Info — 2 finding(s)
D12 · Dependency Hygiene· Dependency hygiene not measured · ×1
Dependency hygiene not measured — dependency manifest found but not parsed for hygiene — This repository's dependency manifests (a Go module (go.mod/go.sum) and package.json) were found, but this pass cannot parse them for hygiene, so no package was assessed. Zero packages read is NOT a clean dependency tree, so this is NOT SCORED — a gap in the analyzer, not a verdict about this repository. This row is about dependency HYGIENE — outdated, deprecated or unmaintained direct dependencies; known CVEs in the same dependency graph are a separate question, reported under D38 wherever the manifest is OSV-readable.
D22 · Internal API Consistency· No exposed public API · ×1
No exposed public API — No intentionally-exposed types (IsPackable or .Contracts) to evaluate.
Appendix B — Reproduction & audit trail
Every external tool invocation behind a deep-scan dimension — the tool, its captured version, the exact command, how many findings it yielded, and a link to the retained raw output. To reproduce any finding: check out the same commit and run the command shown (repo-relative — never an absolute scratch path). The complete raw scanner output is retained verbatim under artifacts/raw/ (indexed in artifacts/raw/index.json); per-invocation exit codes and wall-clock durations are in sidecar.json — kept out of this table so the rendered report stays byte-identical across runs of the same commit.
trivy: not applicable — No Infrastructure-as-Code or container manifests found (Dockerfile, Terraform, Kubernetes/Helm, CloudFormation); nothing to scan.
disclosure: not applicable — No vulnerability-disclosure policy file found (SECURITY.md/.markdown/.rst/.txt at root or under .github/.forgejo/.gitea/docs, .well-known/security.txt). A coordinated-disclosure policy may live off-repo, so this is not evidenced rather than failed.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; network egress policy is a cluster-native control that may live at the platform/firewall layer, so there is nothing to assess here.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; seccomp/AppArmor/SELinux confinement is a workload-level control, so there is nothing to assess here.
runtime-hardening: not applicable — No Kubernetes/orchestration workloads found in the repository manifests; runtime threat-detection and admission-control policy are cluster-level controls, so there is nothing to assess here.
0
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Run 019fd55c-0311-7fcd-8eb4-9c4821ff3ace · every finding is also locatable in findings.md, and the complete scoring record (with exit codes + durations) in sidecar.json.
Issues: 20 · Warnings: 82 · Recommendations: 16 · Info: 2 — Appendix A · all findings · full markdown report.
Generated by Watchdog — deterministic code-health analysis. 06-08-2026 @ 04:36 UTC.
Downloadable artifacts
Machine-readable and reproducible from this commit + frozen rubric — drop them straight into a contract appendix, a CRA dossier, or a downstream SCA / VEX tool.