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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.
5 critical findings reported by cisco-skill-scanner, agent-audit-kit, 1 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 -- claude
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- claude ~/.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
3 findings · 0.9s
v2.0.11
71 findings · 13.4s
v0.3.74
10 findings · 8.5s
v0.1.0
0 findings · 5.4s
v0.1.0
12 findings · 5.4s
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 · 1.1s
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 96 findings across every scanner that examined this package. 4 of 5 findings rated critical by their scanner were among the dismissals.
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.
11 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: COMPOUND_FIND_EXEC, opt.nerlo-rules.nerlo-install-destructive-system-command, SOCIAL_ENG_VAGUE_DESCRIPTION and 3 more · Files: /repo/docs/MANUAL.md, /repo/docs/SKILL.md, /repo/plugins/project-init/skills/project-init/assets/templates/docs/SKILL.md · reported by cisco-skill-scanner, nerlo-install-instruction
6 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: AAK-SECRET-002, DATA_EXFIL_SENSITIVE_FILES, SECRET_JWT_TOKEN and 1 more · Files: tests/smoke_test.py, /repo/tests/smoke_test.py · reported by agent-audit-kit, cisco-skill-scanner
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: TOOL_ABUSE_UNDECLARED_NETWORK · Files: /repo/repo/CLAUDE.md, /repo/plugins/project-init/skills/project-init/assets/templates/repo/plugins/project-init/skills/project-init/assets/templates/CLAUDE.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.
18 MANIFEST_MISSING_LICENSE
Files: /repo/plugins/prompt-log/skills/del_prompt_log/SKILL.md, /repo/plugins/project-init/skills/harness-uninstall/SKILL.md, /repo/plugins/project-init/skills/harness-update/SKILL.md and 15 more · reported by cisco-skill-scanner
12 HIDDEN_DATA_FILE
Files: /repo/plugins/project-init/skills/project-init/assets/templates/.githooks/post-checkout, /repo/plugins/project-init/skills/project-init/assets/templates/.githooks/pre-push, /repo/plugins/project-init/skills/project-init/assets/templates/.plan-gateignore and 1 more · reported by cisco-skill-scanner
11 PIPELINE_TAINT_FLOW
Files: /repo/plugins/project-init/skills/project-init/assets/templates/.claude/memory/workflow.md, /repo/plugins/project-init/skills/project-init/assets/templates/.claude/memory/SKILL.md, /repo/complit/260618_host_pollution_isolation_rule_report.md and 1 more · reported by cisco-skill-scanner
7 opt.nerlo-rules.nerlo-install-pipe-to-shell
Files: /repo/complit/260618_host_pollution_isolation_rule_report.md, /repo/plugins/project-init/skills/project-init/assets/templates/.claude/memory/workflow.md · reported by nerlo-install-instruction
6
Critical command injection and sensitive data handling risks identified.
This artifact contains a critical command injection vulnerability in `/repo/plugins/project-init/hooks/dangerous_bash_check.py`, allowing for arbitrary shell execution. It also has high-severity findings related to sensitive data exfiltration from the same file and potential credential access. Further high-severity issues indicate pipeline taint flow and the ability to pipe output to a shell, posing additional execution risks.
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/SKILL.md, /repo/complit/SKILL.md, /repo/plugins/prompt-log/SKILL.md and 3 more · reported by cisco-skill-scanner
4 YARA_code_execution_generic
Files: /repo/plugins/project-init/skills/project-init/assets/templates/scripts/validate_arch.py, /repo/.claude/hooks/ruff_check.py · reported by cisco-skill-scanner
3 AAK-MARKETPLACE-001
Files: .claude-plugin/marketplace.json · reported by agent-audit-kit
3 opt.nerlo-rules.nerlo-install-shell-inline-command
Files: /repo/complit/260612_harness_fix_report.md, /repo/complit/260613_plan_gate_v2_design.md · reported by nerlo-install-instruction
2 AAK-AGENT-SHARED-RES-AUTHZ-001
Files: .claude-plugin/marketplace.json, plugins/project-init/.claude-plugin/plugin.json · reported by agent-audit-kit
2 AAK-SECRET-004
Files: plugins/project-init/hooks/dangerous_bash_check.py · reported by agent-audit-kit
1 AAK-SUPPLY-004
Files: pyproject.toml · reported by agent-audit-kit
1 COMMAND_INJECTION_EVAL
Files: /repo/plugins/project-init/hooks/dangerous_bash_check.py · reported by cisco-skill-scanner
1 DATA_EXFIL_SENSITIVE_FILES
Files: /repo/plugins/project-init/hooks/dangerous_bash_check.py · reported by cisco-skill-scanner
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 hooks-no-pretooluse
Files: settings.json · reported by agentshield
1 hooks-no-stop-hooks
Files: settings.json · reported by agentshield
1 MANIFEST_INVALID_NAME
Files: /repo/plugins/prompt-log/skills/del_prompt_log/SKILL.md · reported by cisco-skill-scanner
1 permissions-no-block
Files: settings.json · reported by agentshield
1 TOOL_ABUSE_UNDECLARED_NETWORK
Files: /repo/plugins/project-init/skills/project-init/repo/plugins/project-init/skills/project-init/SKILL.md · reported by cisco-skill-scanner
Showing 25 of 27; the rest are in the per-scanner reports above.