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Use when adding, fixing, or improving how an app authenticates users or protects an API, or when using or configuring any Auth0 feature — signing users in and out, sessions and tokens, guarding routes and endpoints, MFA, SSO, Organizations, RBAC, custom domains, Universal Portals for hosted account and organization self-service, or Universal Login branding. Also use to audit a tenant's health, security, and plan fit (CheckMate), to debug why an auth flow fails, to migrate from another auth provider, or to set up the Vercel native integration. Covers any web, mobile, or backend framework and every Auth0 SDK, tool, and API. Use even if the user never mentions Auth0.
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.
2 critical findings reported by cisco-skill-scanner. 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 -- 'auth0/agent-skills (auth0)'
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- 'auth0/agent-skills (auth0)' ~/.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
0 findings · 0.7s
v2.0.11
214 findings · 16.6s
v0.3.74
11 findings · 4.8s
v0.1.0
0 findings · 4.9s
v0.1.0
24 findings · 4.9s
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 · 1.2s
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 249 findings across every scanner that examined this package. None of the 2 findings rated critical by their scanner were dismissed.
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.
3 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: AAK-AGENT-002, FILE_MAGIC_MISMATCH · Files: AGENTS.md, /repo/CLAUDE.md · reported by agent-audit-kit, cisco-skill-scanner
2 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: SOCIAL_ENG_VAGUE_DESCRIPTION, MANIFEST_MISSING_LICENSE · Files: /repo/docs/SKILL.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.
62 MANIFEST_MISSING_LICENSE
Files: /repo/SKILL.md, /repo/plugins/auth0/SKILL.md, /repo/plugins/auth0/skills/auth0/references/framework-php/SKILL.md and 59 more · reported by cisco-skill-scanner
62 SOCIAL_ENG_VAGUE_DESCRIPTION
Files: /repo/SKILL.md, /repo/plugins/auth0/SKILL.md, /repo/plugins/auth0/skills/auth0/references/framework-php/SKILL.md and 59 more · reported by cisco-skill-scanner
45 PIPELINE_TAINT_FLOW
Files: /repo/plugins/auth0/skills/auth0/references/framework-flask/index.md, /repo/plugins/auth0/skills/auth0/references/framework-android/index.md, /repo/plugins/auth0/skills/auth0/references/framework-aspnetcore-auth/index.md and 13 more · reported by cisco-skill-scanner
16 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/evals/activation/run-activation-evals.mjs, /repo/evals/behavioral/graders.mjs, /repo/evals/behavioral/run-evals.mjs · reported by cisco-skill-scanner
12 FILE_MAGIC_MISMATCH
Files: /repo/plugins/auth0/skills/auth0/assets/audit/report-template.html, /repo/plugins/auth0/skills/auth0/assets/healthcheck/report-template.html, /repo/plugins/auth0/skills/auth0/assets/healthcheck/report-template.md
Critical command injection and high data exfiltration risks.
The artifact contains critical command injection vulnerabilities in `/repo/evals/behavioral/run-evals.mjs`, allowing for shell execution. It also exhibits high-severity data exfiltration capabilities through JavaScript file system access in multiple `evals` files. Additionally, the artifact includes hidden executable scripts and instructions that pipe content to a shell, posing further 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.
12 opt.nerlo-rules.nerlo-install-pipe-to-shell
Files: /repo/plugins/auth0/skills/auth0/references/feature-audit/index.md, /repo/plugins/auth0/skills/auth0/references/framework-android/index.md, /repo/plugins/auth0/skills/auth0/references/framework-aspnetcore-auth/index.md and 7 more · reported by nerlo-install-instruction
9 HIDDEN_DATA_FILE
Files: /repo/plugins/auth0/.cursor-plugin/plugin.json, /repo/.agents/plugins/marketplace.json, /repo/.snyk-agent-scan-ignore.json and 4 more · reported by cisco-skill-scanner
8 opt.nerlo-rules.nerlo-install-fetch-raw-then-run
Files: /repo/plugins/auth0/skills/auth0/references/feature-audit/index.md, /repo/plugins/auth0/skills/auth0/references/framework-android/index.md, /repo/plugins/auth0/skills/auth0/references/framework-aspnetcore-auth/index.md and 4 more · reported by nerlo-install-instruction
3 AAK-MARKETPLACE-001
Files: .cursor-plugin/marketplace.json, .claude-plugin/marketplace.json, .agents/plugins/marketplace.json · reported by agent-audit-kit
3 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/plugins/auth0/skills/auth0/references/feature-audit/index.md, /repo/plugins/auth0/skills/auth0/references/framework-ionic-angular/index.md · reported by nerlo-install-instruction
2 AAK-LEGAL-002
Files: evals/activation/package.json, evals/behavioral/package.json · reported by agent-audit-kit
2 COMMAND_INJECTION_EVAL
Files: /repo/evals/behavioral/run-evals.mjs · reported by cisco-skill-scanner
1 AAK-HEALTHCARE-AI-004
Files: plugins/auth0/skills/auth0/references/feature-custom-domains/index.md · reported by agent-audit-kit
1 AAK-MARKETPLACE-004
Files: .agents/plugins/marketplace.json · reported by agent-audit-kit
1 AAK-OAUTH-001
Files: evals/behavioral/cases/expo.json · reported by agent-audit-kit
1 AAK-OAUTH-007
Files: evals/behavioral/cases/expo.json · reported by agent-audit-kit
1 EXCESSIVE_FILE_COUNT
Files: /repo/. · reported by cisco-skill-scanner
1 HIDDEN_EXECUTABLE_SCRIPT
Files: /repo/.skillsaw/rules.py · reported by cisco-skill-scanner
1 LOW_ANALYZABILITY
Files: /repo/evals/activation · reported by cisco-skill-scanner
1 opt.nerlo-rules.nerlo-install-shell-inline-command
Files: /repo/plugins/auth0/skills/auth0/references/framework-react/index.md · reported by nerlo-install-instruction
Showing 25 of 54; the rest are in the per-scanner reports above.