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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 -- versions-skills
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- versions-skills ~/.claude/skills/
Install respects the composite badge: Clean proceeds, Caution prompts for confirmation, and Flagged is refused. Write operations require an API token.
8 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.
v2.0.11
77 findings · 25.7s
v0.3.74
5 findings · 5.2s
v0.2.0
0 findings · 6.1s
v0.2.0
21 findings · 6.1s
vv0.3.2
Incomplete run
0 findings · 1.8s
v0.71.0
2 findings · 0.4s
v2.3.8
100 findings · 8.7s
vv1.6.0
Incomplete run
0 findings · 1.5s
v1.4.0
None of the entry points this scanner reads 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 · 28.0s
v0.71.0
No container image was published for this artifact. What each scanner covers
0 findings · 0.0s
4 scans on record. Every scan's full results are retained immutably for 24 months.
| Completed | Composite | Change | Scanners | Status |
|---|---|---|---|---|
| Sep 17, 2026 | Flagged53 | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completecapslock ·!: incompletenerlo-multi-source ·n/a: not applicabletrivy: completeosv-scanner: completetrivy_image ·n/a: not applicablegovulncheck ·!: incomplete | completed |
| Aug 2, 2026 | Scan Halted | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-multi-source ·n/a: not applicable | rejected |
| Jul 30, 2026 | Scan Halted | — | cisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-multi-source ·n/a: not applicable | rejected |
| Jul 26, 2026 | Scan Halted | — | agentshield ·n/a: not applicablecisco-skill-scanner: completeagent-audit-kit: completenerlo-behavioral: completenerlo-install-instruction: completenerlo-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 205 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.
110 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: PIPELINE_TAINT_FLOW, opt.nerlo-rules.nerlo-install-fetch-raw-then-run, opt.nerlo-rules.nerlo-install-pipe-to-shell and 55 more · Files: /repo/website/ai-agents.md, /repo/website/quick-start.md, /repo/website/skills/installation.md and 19 more · reported by cisco-skill-scanner, nerlo-install-instruction, osv-scanner
5 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: FILE_MAGIC_MISMATCH · Files: /repo/test_data/maven_versions_count.txt, /repo/test_data/org.apache.tomcat_tomcat-juli.txt, /repo/test_data/org.jboss_jboss-ejb-client.txt and 2 more · reported by 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/go-test.yml, .github/workflows/go-release.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.
16 MANIFEST_MISSING_LICENSE
Files: /repo/skills/version-parsing/SKILL.md, /repo/skills/version-file-operations/SKILL.md, /repo/skills/version-constraints/SKILL.md and 13 more · reported by cisco-skill-scanner
3 HIDDEN_DATA_FILE
Files: /repo/website-react-legacy/.oxlintrc.json, /repo/.golangci.yml · reported by cisco-skill-scanner
3 PIPELINE_TAINT_FLOW
Files: /repo/install.sh, /repo/skills/installation/SKILL.md · reported by cisco-skill-scanner
2 GHSA-qwww-vcr4-c8h2
Files: /repo/website-react-legacy/package-lock.json, website-react-legacy/package-lock.json · reported by osv-scanner, trivy
2 opt.nerlo-rules.nerlo-install-fetch-raw-then-run
Files: /repo/install.sh, /repo/skills/installation/SKILL.md · reported by nerlo-install-instruction
2
The model could have called any of these a false positive and did not.
3 EXCESSIVE_FILE_COUNT
Files: /repo/website/., /repo/website/sdk/api/., /repo/website/sdk/. · reported by cisco-skill-scanner
1 AAK-LEGAL-002
Files: website/package.json · reported by agent-audit-kit
1 GHSA-28wg-ghj8-5hjv
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-2v37-7h3g-55p8
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-4w7w-66w2-5vf9
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-55q2-fjhq-7xh7
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-67mh-4wv8-2f99
Artifact enables shell execution and contains high-severity vulnerabilities.
The artifact's installation instructions in `/repo/install.sh` and `/repo/skills/installation/SKILL.md` permit arbitrary shell execution via piping to shell and fetching raw content for execution. A pipeline taint flow and compound extract/execute pattern are also present in `/repo/install.sh`. Additionally, several high-severity vulnerabilities (e.g., GHSA-2v37-7h3g-55p8, GHSA-28wg-ghj8-5hjv, CVE-2026-56852) are identified in dependencies within `package-lock.json` and `go.mod` files.
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/install.sh, /repo/skills/installation/SKILL.md · reported by nerlo-install-instruction
2 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/website-react-legacy/SKILL.md · reported by cisco-skill-scanner
1 AAK-LEGAL-002
Files: website-react-legacy/package.json · reported by agent-audit-kit
1 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json · reported by agent-audit-kit
1 COMPOUND_EXTRACT_EXECUTE
Files: /repo/install.sh · reported by cisco-skill-scanner
1 CVE-2026-56852
Files: go.mod · reported by trivy
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 GHSA-28wg-ghj8-5hjv
Files: /repo/website-react-legacy/package-lock.json · reported by osv-scanner
1 GHSA-2v37-7h3g-55p8
Files: /repo/website-react-legacy/package-lock.json · reported by osv-scanner
1 GHSA-fxqj-rqcc-2cmp
Files: /repo/website-react-legacy/package-lock.json · reported by osv-scanner
1 GHSA-r28c-9q8g-f849
Files: /repo/website-react-legacy/package-lock.json · reported by osv-scanner
1 GO-2026-4337
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4340
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4341
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4342
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4601
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4602
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4603
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4864
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4865
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4869
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4870
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4918
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4946
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4947
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4970
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4971
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4976
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4977
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4980
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4981
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4982
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-4986
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5026
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5037
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5038
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5039
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5856
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5970
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-5972
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6088
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6089
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6090
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6091
Files: /repo/go.mod · reported by osv-scanner
1 GO-2026-6218
Files: /repo/go.mod · reported by osv-scanner
1 LOW_ANALYZABILITY
Files: /repo/website-react-legacy · reported by cisco-skill-scanner
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-c2j3-45gr-mqc4
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-fx2h-pf6j-xcff
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-fxqj-rqcc-2cmp
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-r28c-9q8g-f849
Files: /repo/website/package-lock.json · reported by osv-scanner
1 GHSA-v6wh-96g9-6wx3
Files: /repo/website/package-lock.json · reported by osv-scanner