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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.
80 critical findings reported by cisco-skill-scanner, agent-audit-kit, 60 of them in the installed artifact. The composite score alone does not reflect this — read the per-scanner reports below.
Claude Skills install to a single target, no runtime picker.
nerlo install -- fixflags
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- fixflags ~/.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
1 finding · 3.1s
v2.0.11
1625 findings · 141.3s
v0.3.74
59 findings · 75.6s
v0.1.0
43 findings · 38.1s
v0.1.0
3 findings · 38.1s
vv0.3.2
No Go packages were found in this artifact. What each scanner covers
0 findings · 0.2s
v0.1.0
This scanner found nothing in this artifact that it assesses. What each scanner covers
0 findings · 1.9s
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 1,731 findings across every scanner that examined this package. 20 of 80 findings rated critical by their scanner were among the dismissals.
Not reviewed is not the same as clean. Those 1 finding stand exactly as their scanners reported them, at full severity, as they would have without this review.
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.
48 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: COMMAND_INJECTION_JS_CHILD_PROCESS, COMMAND_INJECTION_EVAL, AAK-SECRET-003 and 7 more · Files: /repo/lib/audit/code-checks/__tests__/code-checks.test.ts, lib/audit/code-checks/__tests__/code-checks.test.ts, /repo/scripts/release-receipts.test.mjs and 10 more · reported by cisco-skill-scanner, agent-audit-kit
26 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: YARA_prompt_injection_unicode_steganography, AAK-STATE-PRIVACY-002, AAK-STATE-PRIVACY-001 and 5 more · Files: /repo/docs/brand/reference/brand-sheet-2026-07.png, /repo/docs/brand/reference/home-hero-glass-rgba-master.png, docs/legal-launch-checklist.md and 8 more · reported by cisco-skill-scanner, agent-audit-kit, nerlo-install-instruction
2 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: HIDDEN_DATA_FILE · Files: /repo/.archon/AGENTS.md, /repo/.opencode/instructions/agents.md · reported by cisco-skill-scanner
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.
986 HIDDEN_DATA_FILE
Files: /repo/.playwright-cli/traces/resources/page@c4a43cb9ae1175479ba00985bf71d567-1785022341824.jpeg, /repo/.playwright-cli/traces/resources/page@c4a43cb9ae1175479ba00985bf71d567-1785022366416.jpeg, /repo/.playwright-cli/traces/resources/page@c4a43cb9ae1175479ba00985bf71d567-1785022420290.jpeg and 983 more · reported by cisco-skill-scanner
266 DATA_EXFIL_JS_NETWORK
Files: /repo/.agents/sessions/scan-sweep.mjs, /repo/app/(app)/dashboard/mcp-setup/page.tsx, /repo/app/(app)/settings/api-keys/page.tsx and 74 more · reported by cisco-skill-scanner
114 YARA_prompt_injection_unicode_steganography
Files: /repo/.agents/artifacts/homepage-hero-comparison-1086x724.png, /repo/.agents/artifacts/homepage-refinement/hero-comparison.png, /repo/.playwright-cli/traces/resources/page@c4a43cb9ae1175479ba00985bf71d567-1785022340344.jpeg and 104 more · reported by cisco-skill-scanner
60 MANIFEST_MISSING_LICENSE
Files: /repo/.claude/skills/fixflags/SKILL.md, /repo/.cursor/skills/fixflags-npm-operations/SKILL.md, /repo/.cursor/skills/fixflags-runtime-release/SKILL.md and 57 more · reported by cisco-skill-scanner
34
The model could have called any of these a false positive and did not.
2 AAK-MCP-ENV-PLACEHOLDER-EXFIL-001
Files: scripts/route-boundary-smoke.mjs, scripts/validate.mjs · reported by agent-audit-kit
1 The model called these false positives and our own check did not agree, so the dismissal was refused.
Rules: HIDDEN_DATA_FILE · Files: /repo/.agents/GOAL.md.example · reported by cisco-skill-scanner
Artifact allows command injection, environment variable exfiltration, and secret network egress.
The artifact contains multiple instances of command injection via `eval` and child processes, notably in `/repo/lib/audit/` files. It also has capabilities to exfiltrate environment variables from `scripts/route-boundary-smoke.mjs` and `scripts/validate.mjs`. Additionally, secrets can be sent over the network, and hidden executable scripts are present.
Concern level assessed by the review: Critical. 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.
Files: /repo/scripts/agent-evals/cases.mjs, /repo/scripts/agent-release-continuity.mjs, /repo/scripts/container-smoke.mjs and 10 more · reported by cisco-skill-scanner
32 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/.claude/skills/fixflags/SKILL.md, /repo/SKILL.md, /repo/.archon/SKILL.md and 29 more · reported by cisco-skill-scanner
25 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/fixflags-cli/src/auth.ts, /repo/fixflags-cli/src/index.ts, /repo/fixflags-cli/src/mcp-bridge.ts and 9 more · reported by nerlo-behavioral
24 COMMAND_INJECTION_EVAL
Files: /repo/.playwright-cli/traces/resources/09846b3d8e1b9bfea218057b83308dcd94e7ddd7.js, /repo/.playwright-cli/traces/resources/0a91dbcef8fa81d1e043d2e3c001209c46d99411.js, /repo/.playwright-cli/traces/resources/1a3ddf4f3422516294a73d21dcd38053e06548b4.js and 11 more · reported by cisco-skill-scanner
18 HIDDEN_EXECUTABLE_SCRIPT
Files: /repo/.playwright-cli/traces/resources/c0661a26e35712540bbd995afa84698c353d0d84.js, /repo/.playwright-cli/traces/resources/09846b3d8e1b9bfea218057b83308dcd94e7ddd7.js, /repo/.playwright-cli/traces/resources/4d520e56609ca6dca14487093a856af7df40a213.js and 15 more · reported by cisco-skill-scanner
12 opt.nerlo-rules.nerlo-dynamic-exec
Files: /repo/.playwright-cli/traces/resources/09846b3d8e1b9bfea218057b83308dcd94e7ddd7.js, /repo/.playwright-cli/traces/resources/0a91dbcef8fa81d1e043d2e3c001209c46d99411.js, /repo/.playwright-cli/traces/resources/1a3ddf4f3422516294a73d21dcd38053e06548b4.js and 9 more · reported by nerlo-behavioral
10 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/lib/marketing/resolve-evidence-anchors.ts, /repo/lib/storage/screenshots.ts, /repo/scripts/agent-heartbeat.mjs · reported by cisco-skill-scanner
10 LOW_ANALYZABILITY
Files: /repo/app, /repo, /repo/lib/queue and 7 more · reported by cisco-skill-scanner
9 AAK-MCP-018
Files: lib/mcp/anon-check-status.ts, lib/mcp/contract.ts, lib/mcp/tools/repo-scan.ts and 6 more · reported by agent-audit-kit
6 EXCESSIVE_FILE_COUNT
Files: /repo/.agents/., /repo/app/., /repo/lib/audit/. and 3 more · reported by cisco-skill-scanner
6 opt.nerlo-rules.nerlo-hardcoded-external-egress
Files: /repo/lib/integrations/github.ts, /repo/lib/integrations/google-search-console.ts · reported by nerlo-behavioral
4 AAK-OAUTH-006
Files: lib/integrations/github.ts, lib/integrations/google-search-console.ts, app/api/integrations/github/callback/route.ts and 1 more · reported by agent-audit-kit
4 AAK-OAUTH-007
Files: lib/integrations/github.ts, lib/integrations/google-search-console.ts, components/audit/ShareLinkPageClient.tsx and 1 more · reported by agent-audit-kit
4 AAK-SECRET-004
Files: .env.example, scripts/provision-release-fixtures.ts, lib/security/api-keys.ts and 1 more · reported by agent-audit-kit
4 MANIFEST_INVALID_NAME
Files: /repo/.cursor/SKILL.md, /repo/.agents/SKILL.md, /repo/.archon/SKILL.md and 1 more · reported by cisco-skill-scanner
3 AAK-HEALTHCARE-AI-004
Files: SOUL.md, .agents/sessions/ux-iteration-test-sites.md, .agents/sessions/2026-08-10-rate-limit-recovery-report.md · reported by agent-audit-kit
3 FILE_MAGIC_MISMATCH
Files: /repo/lib/audit/journey/evaluator-schema.ts · reported by cisco-skill-scanner
2 AAK-MCP-006
Files: .mcp.json, .cursor/mcp.json · reported by agent-audit-kit
2 AAK-MCP-ATTEST-001
Files: .mcp.json, .cursor/mcp.json · reported by agent-audit-kit
2 AAK-OAUTH-001
Files: components/audit/ShareLinkPageClient.tsx, app/api/share/[token]/route.ts · reported by agent-audit-kit
2 opt.nerlo-rules.nerlo-install-shell-inline-command
Files: /repo/.agents/learnings/remote-sandbox-fullstack-recipe.md · reported by nerlo-install-instruction
2 SECRET_CONNECTION_STRING
Files: /repo/scripts/container-smoke.mjs · reported by cisco-skill-scanner
1 AAK-DNS-REBIND-002
Files: package.json · reported by agent-audit-kit
1 AAK-LEGAL-002
Files: package.json · reported by agent-audit-kit
1 AAK-MCP-BETTERAUTH-CVE-2026-53512-001
Files: package.json · reported by agent-audit-kit
1 AAK-OAUTH-008
Files: app/api/mcp/route.ts · reported by agent-audit-kit
1 AAK-OAUTH-3P-001
Files: package.json · reported by agent-audit-kit
1 AAK-SUPPLY-005
Files: package-lock.json · reported by agent-audit-kit
1 LAZY_LOAD_DEEP_NESTING
Files: /repo/knowledge/SKILL.md · reported by cisco-skill-scanner
1 mcp-no-desc-fixflags
Files: .cursor/mcp.json · reported by agentshield
Showing 25 of 145; the rest are in the per-scanner reports above.