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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.
7 critical findings reported by cisco-skill-scanner, agent-audit-kit, 5 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 -- @nightshift-ai/source
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- @nightshift-ai/source ~/.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
12 findings · 1.0s
v2.0.11
486 findings · 60.5s
v0.3.74
33 findings · 23.0s
v0.1.0
0 findings · 10.8s
v0.1.0
145 findings · 10.8s
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 · 1.9s
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 21, 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 676 findings across every scanner that examined this package. 2 of 7 findings rated critical by their scanner were among the dismissals.
Not reviewed is not the same as clean. Those 2 findings 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.
224 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: COMMAND_INJECTION_EVAL, AAK-SECRET-004, AAK-IPI-WILD-CORPUS-001 and 9 more · Files: /repo/docs/design/marketing-site-handoff/designs/support.js, docs/design/marketing-site-handoff/designs/support.js, docs/superpowers/specs/NA-101.md and 84 more · reported by cisco-skill-scanner, agent-audit-kit, nerlo-install-instruction
103 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_USER_INPUT, FILE_MAGIC_MISMATCH, MANIFEST_MISSING_LICENSE · Files: /repo/plugins/sdlc/scripts/__tests__/resolve-ai-workflow-mode.test.sh, /repo/tools/sdlc-analyser/__tests__/fixtures/context-residency/list-edge-cases.txt, /repo/tools/sdlc-analyser/__tests__/fixtures/read-bounding/list-edge-cases.txt and 77 more · reported by cisco-skill-scanner
9 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: agents-comment-injection-0, AAK-AGENT-005, HIDDEN_DATA_FILE · Files: CLAUDE.md, AGENTS.md, /repo/.agents/skills/vercel-composition-patterns/AGENTS.md and 1 more · reported by agentshield, agent-audit-kit, cisco-skill-scanner
5 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: LOW_ANALYZABILITY, AAK-GHA-IMMUTABLE-001, permissions-no-block and 1 more · Files: /repo/.github/skills/monitor-ci, .github/workflows/ci.yml, .github/workflows/release.yml and 1 more · reported by cisco-skill-scanner, agent-audit-kit, agentshield
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.
130 HIDDEN_DATA_FILE
Files: /repo/.agents/skills/vercel-composition-patterns/rules/patterns-explicit-variants.md, /repo/.opencode/skills/nx-generate/SKILL.md, /repo/.opencode/skills/monitor-ci/SKILL.md and 126 more · reported by cisco-skill-scanner
78 MANIFEST_MISSING_LICENSE
Files: /repo/.claude/skills/nightshift-design/SKILL.md, /repo/plugins/sdlc/skills/writing-adrs/SKILL.md, /repo/plugins/sdlc/skills/to-prd/SKILL.md and 75 more · reported by cisco-skill-scanner
33 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/brand/SKILL.md, /repo/.agents/SKILL.md and 30 more · reported by cisco-skill-scanner
10 LOW_ANALYZABILITY
Files: /repo/skills/monitor-ci, /repo/.opencode/skills/monitor-ci, /repo/apps/marketing and 7 more · reported by cisco-skill-scanner
8 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/plugins/sdlc/commands/auto.md, /repo/plugins/sdlc/commands/docs.md, /repo/plugins/sdlc/refs/domain-agent-handoff.md and 2 more
2 The model did not answer for these findings.
Rules: COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR · Files: /repo/docs/design/marketing-site-handoff/designs/support.js · reported by cisco-skill-scanner
Critical command injection and credential access risks
The artifact contains critical command injection vulnerabilities in JavaScript files, allowing for arbitrary code execution. It also exposes credentials in Python scripts and has network egress capabilities. Additionally, logging is disabled in certain hooks, and some components are difficult to analyze.
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.
8 YARA_prompt_injection_unicode_steganography
Files: /repo/apps/marketing/public/hero-promo.mp4 · reported by cisco-skill-scanner
7 FILE_MAGIC_MISMATCH
Files: /repo/apps/marketing/public/llms.txt, /repo/llms.txt, /repo/apps/marketing/src/app/(payload)/admin/importMap.js and 1 more · reported by cisco-skill-scanner
6 YARA_capability_inflation_generic
Files: /repo/apps/marketing/src/components/home/team-preview.tsx, /repo/packages/ui/src/lib/nightshift/night-sky.tsx · reported by cisco-skill-scanner
5 UNANALYZABLE_BINARY
Files: /repo/apps/marketing/public/hero-promo.mp4, /repo/.claude/skills/nightshift-design/.thumbnail, /repo/Nightshift landing page site brief.zip · reported by cisco-skill-scanner
4 AAK-HEALTHCARE-AI-004
Files: plugins/sdlc/agents/scrum-master.md, plugins/sdlc/skills/user-story-splitting/SKILL.md, plugins/sdlc/skills/user-story-mapping/SKILL.md and 1 more · reported by agent-audit-kit
4 AAK-LEGAL-002
Files: .claude/skills/nightshift-design/package.json, packages/ui/package.json, apps/marketing-e2e/package.json and 1 more · reported by agent-audit-kit
4 BINARY_FILE_DETECTED
Files: /repo/.claude/skills/nightshift-design/.thumbnail, /repo/apps/marketing/public/hero-promo.mp4 · reported by cisco-skill-scanner
4 EXCESSIVE_FILE_COUNT
Files: /repo/plugins/sdlc/., /repo/apps/marketing/., /repo/.agents/. and 1 more · reported by cisco-skill-scanner
3 AAK-SECRET-004
Files: tools/sdlc-analyser/cache-analysis.py, tools/sdlc-analyser/duplicate-reads.py, tools/sdlc-analyser/read-bounding.py · reported by agent-audit-kit
3 DATA_EXFIL_JS_NETWORK
Files: /repo/Nightshift landing page site brief.zip!/design_handoff_marketing_site/designs/support.js · reported by cisco-skill-scanner
3 permissions-no-block
Files: settings.json, .claude/settings.json, .gemini/settings.json · reported by agentshield
2 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json · reported by agent-audit-kit
2 AAK-MCP-007
Files: .gemini/settings.json · reported by agent-audit-kit
2 AAK-SKILL-003
Files: plugins/sdlc/skills/graphify/SKILL.md, .agents/skills/payload/SKILL.md · reported by agent-audit-kit
2 COMMAND_INJECTION_JS_FUNCTION_CONSTRUCTOR
Files: /repo/Nightshift landing page site brief.zip!/design_handoff_marketing_site/designs/support.js · reported by cisco-skill-scanner
2 hooks-logging-disabled-797
Files: hooks/rtk-line-scan.sh, .claude/hooks/rtk-line-scan.sh · reported by agentshield
2 hooks-no-stop-hooks
Files: settings.json, .claude/settings.json · reported by agentshield
2 OVERSIZED_FILE
Files: /repo/apps/marketing/public/hero-promo.mp4 · reported by cisco-skill-scanner
1 AAK-MCP-005
Files: .gemini/settings.json · reported by agent-audit-kit
1 AAK-MCP-ATTEST-001
Files: .gemini/settings.json · reported by agent-audit-kit
1 AAK-OAUTH-007
Files: docker-compose.yml · reported by agent-audit-kit
1 AAK-SUPPLY-003
Files: package.json · reported by agent-audit-kit
1 agents-no-tools-agents/ci-monitor-subagent.md
Files: agents/ci-monitor-subagent.md · reported by agentshield
1 ARCHIVE_FILE_DETECTED
Files: /repo/Nightshift landing page site brief.zip · reported by cisco-skill-scanner
1 COMMAND_INJECTION_EVAL
Files: /repo/Nightshift landing page site brief.zip!/design_handoff_marketing_site/designs/support.js · reported by cisco-skill-scanner
1 hooks-no-pretooluse
Files: .gemini/settings.json · reported by agentshield
1 MANIFEST_INVALID_NAME
Files: /repo/.agents/SKILL.md · reported by cisco-skill-scanner