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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 -- canvas
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- canvas ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
7 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
56 findings · 7.6s
v0.3.74
7 findings · 2.5s
v0.1.0
0 findings · 3.4s
v0.1.0
0 findings · 3.4s
v0.71.0
13 findings · 0.3s
v2.3.8
14 findings · 7.4s
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
v0.71.0
No container image was published for this artifact. What each scanner covers
0 findings · 0.0s
vv1.6.0
No Go modules were found in this artifact. What each scanner covers
0 findings · 0.1s
1 scan on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Aug 22, 2026 | Flagged55 | — | agentshield: completecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·n/a: not applicablenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·n/a: not applicable | completed |
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 90 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.
6 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/ci.yml, .github/workflows/is-compatible.yml, .github/workflows/release.yml and 2 more · reported by agent-audit-kit
1 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: HIDDEN_DATA_FILE · Files: /repo/.config/jest/mocks/react-inlinesvg.tsx · 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.
16 HIDDEN_EXECUTABLE_SCRIPT
Files: /repo/.prettierrc.js, /repo/.config/.prettierrc.js, /repo/.config/jest-setup.js and 12 more · reported by cisco-skill-scanner
13 HIDDEN_DATA_FILE
Files: /repo/.cprc.json, /repo/.config/.cprc.json, /repo/.config/tsconfig.json and 9 more · reported by cisco-skill-scanner
10 MANIFEST_MISSING_LICENSE
Files: /repo/.codex/skills/build-plugin/SKILL.md, /repo/.codex/skills/validate-plugin/SKILL.md, /repo/.claude/skills/build-plugin/SKILL.md and 7 more · reported by cisco-skill-scanner
7 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/.claude/skills/build-plugin/SKILL.md, /repo/.claude/skills/validate-plugin/SKILL.md, /repo/SKILL.md and 4 more · reported by cisco-skill-scanner
4 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/.config/bundler/utils.ts · reported by cisco-skill-scanner
3
Artifact contains hidden executables, data exfiltration risks, and high severity vulnerabilities.
The artifact includes 16 hidden executable scripts, notably in `/repo/.config/.prettierrc.js` and `/repo/.config/entrypoint.sh`, which could lead to shell execution. It also exhibits four instances of potential data exfiltration through JavaScript file system access in `/repo/.config/bundler/utils.ts`. Furthermore, the artifact has three instances of low analyzability in `/repo` and `/repo/src`, and incorporates dependencies with high severity vulnerabilities like GHSA-2v37-7h3g-55p8 and GHSA-qjx8-664m-686j.
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.
Files: /repo/src, /repo, /repo/.config · reported by cisco-skill-scanner
2 GHSA-55q2-fjhq-7xh7
Files: /repo/package-lock.json, package-lock.json · reported by osv-scanner, trivy
2 GHSA-c2j3-45gr-mqc4
Files: package-lock.json, /repo/package-lock.json · reported by trivy, osv-scanner
2 MANIFEST_INVALID_NAME
Files: /repo/.config/AGENTS/SKILL.md, /repo/.config/SKILL.md · reported by cisco-skill-scanner
1 AAK-SUPPLY-005
Files: package-lock.json · reported by agent-audit-kit
1 CVE-2026-46625
Files: package-lock.json · reported by trivy
1 CVE-2026-49458
Files: package-lock.json · reported by trivy
1 CVE-2026-49459
Files: package-lock.json · reported by trivy
1 CVE-2026-49978
Files: package-lock.json · reported by trivy
1 CVE-2026-53666
Files: package-lock.json · reported by trivy
1 CVE-2026-53669
Files: package-lock.json · reported by trivy
1 CVE-2026-65898
Files: package-lock.json · reported by trivy
1 CVE-2026-65899
Files: package-lock.json · reported by trivy
1 CVE-2026-65900
Files: package-lock.json · reported by trivy
1 CVE-2026-65901
Files: package-lock.json · reported by trivy
1 CVE-2026-65902
Files: package-lock.json · reported by trivy
1 GHSA-2v37-7h3g-55p8
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-337j-9hxr-rhxg
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-76mc-f452-cxcm
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-cmwh-pvxp-8882
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-gvmj-g25r-r7wr
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-hpcv-96wg-7vj8
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-qjx8-664m-686j
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-r47g-fvhr-h676
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-rp9w-3fw7-7cwq
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-vxr8-fq34-vvx9
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-wrjc-x8rr-h8h6
Files: /repo/package-lock.json · reported by osv-scanner
1 GHSA-x4vx-rjvf-j5p4
Files: /repo/package-lock.json · reported by osv-scanner
Showing 25 of 26; the rest are in the per-scanner reports above.