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Claude Skills are markdown + scripts loaded into Claude Code; scanned with the same pipeline.
We found this by crawling public sources and nobody has attested to it. That is how most of the registry gets here, and it is not a mark against the artifact — it only means no authenticated act of publication is on record. An artifact can be the vendor's own and still appear here.
Claude Skills install to a single target, no runtime picker.
nerlo install -- gym-master
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- gym-master ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
5 of 11 scanners examined this package. The rest do not apply to it — language, ecosystem and packaging decide which analyzers can say anything, and a scanner that cannot examine an artifact reports nothing rather than passing it.
v1.4.0
0 findings · 1.0s
v2.0.11
345 findings · 23.6s
v0.3.74
11 findings · 21.5s
v0.1.0
0 findings · 8.4s
v0.1.0
8 findings · 8.4s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.1s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 1.8s
No report in this scan: govulncheck, osv-scanner, trivy, trivy_image.
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 22, 2026 | Scan Halted | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicable | rejected |
Findings in files this artifact installs stand as reported; a model re-read the rest and said which ones it believes are false positives. This is a second opinion published beside the evidence, not a correction to it: the per-scanner reports above are unchanged, every dismissed finding is still listed there at its original severity, and the score and the Flagged badge are computed from those raw severities alone. Nothing below moved them.
Out of 364 findings across every scanner that examined this package.
Two keys had to turn. The model had to name a reason from a fixed list of six, and a deterministic check of ours — over which files this artifact actually installs — had to independently agree. Anything it could not corroborate is in “not reviewed” above, at full severity.
96 Test or fixture file — The match is in a test or fixture. Our own check confirmed the file is not part of what gets installed.
Rules: DATA_EXFIL_JS_FS_ACCESS, DATA_EXFIL_JS_NETWORK, SECRET_PASSWORD_VAR · Files: /repo/src/tests/e2e/ux-rework-baseline.spec.ts, /repo/src/tests/e2e-pwa/pwa.spec.ts, /repo/src/tests/mocks/backend-contract-handlers.test.ts and 23 more · reported by cisco-skill-scanner
44 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE, MANIFEST_INVALID_NAME · Files: /repo/.github/SKILL.md, /repo/docs/init/SKILL.md, /repo/docs/design/SKILL.md and 19 more · reported by cisco-skill-scanner
3 Agent instruction file — The match is in a file that instructs an AI coding agent — a CLAUDE.md or similar. It is documentation of intent, and our own check confirmed it is not part of what gets installed.
Rules: AAK-AGENT-005, FILE_MAGIC_MISMATCH · Files: AGENTS.md, /repo/CLAUDE.md · reported by agent-audit-kit, cisco-skill-scanner
2 CI or editor configuration — The match is in build, CI or editor configuration, confirmed by our own check to be outside the installed artifact.
Rules: AAK-GHA-IMMUTABLE-001 · Files: .github/workflows/deploy.yml · reported by agent-audit-kit
These findings are in files this artifact installs and are not placeholder values. No false-positive basis can be corroborated for such a finding, so this review never dismisses one; they were not sent to the model and stand at their scanner's severity.
77 HIDDEN_DATA_FILE
Files: /repo/openspec/changes/audit-app-flows-backend-alignment/.openspec.yaml, /repo/openspec/changes/account-self-service-avatar/.openspec.yaml, /repo/openspec/changes/role-aware-member-profile/.openspec.yaml and 59 more · reported by cisco-skill-scanner
57 MANIFEST_MISSING_LICENSE
Files: /repo/.codex/skills/graphify/SKILL.md, /repo/.claude/skills/ai-harness/SKILL.md, /repo/.claude/skills/speckit-agent-context-update/SKILL.md and 54 more · reported by cisco-skill-scanner
31 YARA_prompt_injection_unicode_steganography
Files: /repo/public/assets/gymmaster/backgrounds/auth-premium-dark.png, /repo/public/assets/gymmaster/backgrounds/calorie-summary.png, /repo/public/assets/gymmaster/backgrounds/nutrition-meal.png and 9 more · reported by cisco-skill-scanner
23 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/.claude/skills/ai-harness/SKILL.md, /repo/.agents/skills/ai-harness/SKILL.md, /repo/SKILL.md and 20 more · reported by cisco-skill-scanner
8 DATA_EXFIL_JS_NETWORK
Secrets exposed, code obfuscated, and network egress detected.
The artifact contains an exposed secret in `src/lib/pwa/constants.ts` and exhibits low analyzability across the repository, indicating potential code obfuscation or complexity. It also includes code capable of network egress and has multiple instances of potential prompt injection. Additionally, the artifact handles healthcare and legal data, which warrants attention.
Concern level assessed by the review: High. This is the review's scale, not the registry badge.
Reviewed by gemini-2.5-flash. The model sees the findings, not your code, and cannot change a score.
8 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/.agents/skills/speckit-analyze/SKILL.md, /repo/.agents/skills/speckit-checklist/SKILL.md, /repo/.agents/skills/speckit-clarify/SKILL.md and 5 more · reported by nerlo-install-instruction
6 MANIFEST_INVALID_NAME
Files: /repo/.codex/SKILL.md, /repo/.kiro/SKILL.md, /repo/.cline/SKILL.md and 3 more · reported by cisco-skill-scanner
4 AAK-HEALTHCARE-AI-004
Files: .agents/skills/imagegen-frontend-mobile/SKILL.md, .agents/skills/image-to-code/SKILL.md, .agents/skills/brandkit/SKILL.md and 1 more · reported by agent-audit-kit
1 AAK-LEGAL-002
Files: package.json · reported by agent-audit-kit
1 AAK-SECRET-004
Files: src/lib/pwa/constants.ts · reported by agent-audit-kit
1 AAK-SUPPLY-005
Files: package-lock.json · reported by agent-audit-kit
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 LOW_ANALYZABILITY
Files: /repo · reported by cisco-skill-scanner