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Use when the user wants to design, redesign, shape, critique, audit, polish, clarify, distill, harden, optimize, adapt, animate, colorize, extract, or otherwise improve a frontend interface. Covers websites, landing pages, dashboards, product UI, app shells, components, forms, settings, onboarding, and empty states. Handles UX review, visual hierarchy, information architecture, cognitive load, accessibility, performance, responsive behavior, theming, anti-patterns, typography, fonts, spacing, layout, alignment, color, motion, micro-interactions, UX copy, error states, edge cases, i18n, and reusable design systems or tokens. Also use for bland designs that need to become bolder or more delightful, loud designs that should become quieter, live browser iteration on UI elements, or ambitious visual effects that should feel technically extraordinary. Not for backend-only or non-UI tasks.
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.
76 critical findings reported by cisco-skill-scanner, agent-audit-kit. 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 -- 'yudefine/nuxt-supabase-starter (impeccable)'
Manual alternative: copy the skill folder into ~/.claude/skills/ so Claude Code loads it on next launch.
cp -r -- 'yudefine/nuxt-supabase-starter (impeccable)' ~/.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
2 findings · 0.6s
v2.0.11
1622 findings · 85.6s
v0.3.74
62 findings · 36.5s
v0.1.0
50 findings · 58.0s
v0.1.0
24 findings · 58.0s
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 1,760 findings across every scanner that examined this package. None of the 76 findings rated critical by their scanner were dismissed.
Not reviewed is not the same as clean. Those 12 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.
80 Documentation or example — The match is in documentation or sample code, confirmed by our own check to be outside the installed artifact.
Rules: SECRET_CONNECTION_STRING, opt.nerlo-rules.nerlo-install-pipe-to-shell, FILE_MAGIC_MISMATCH and 5 more · Files: /repo/template/docs/SKILL.md, /repo/template/docs/TROUBLESHOOTING.md, /repo/template/docs/guide/SKILL.md and 38 more · reported by cisco-skill-scanner, nerlo-install-instruction
4 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/validate-starter.yml, .github/workflows/template-ci.yml, .github/workflows/template-e2e.yml · reported by agent-audit-kit
3 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-004, FILE_MAGIC_MISMATCH · Files: template/e2e/auth.setup.ts, /repo/template/e2e/roles.example.spec.ts · reported by agent-audit-kit, 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.
1,002 DATA_EXFIL_JS_FS_ACCESS
Files: /repo/.claude/skills/impeccable/scripts/context-signals.mjs, /repo/.claude/skills/impeccable/scripts/context.mjs, /repo/.claude/skills/impeccable/scripts/critique-storage.mjs and 90 more · reported by cisco-skill-scanner
172 DATA_EXFIL_JS_NETWORK
Files: /repo/.claude/skills/impeccable/scripts/concept-seed.mjs, /repo/.claude/skills/impeccable/scripts/context.mjs, /repo/.claude/skills/impeccable/scripts/detector/node/file-system.mjs and 22 more · reported by cisco-skill-scanner
87 MANIFEST_MISSING_LICENSE
Files: /repo/.claude/skills/impeccable/SKILL.md, /repo/template/.claude/skills/build-audit-logs/SKILL.md, /repo/template/.claude/skills/impeccable/SKILL.md and 84 more · reported by cisco-skill-scanner
64 COMMAND_INJECTION_JS_CHILD_PROCESS
Files: /repo/.claude/skills/impeccable/scripts/context.mjs, /repo/.claude/skills/impeccable/scripts/generate-image.mjs, /repo/.claude/skills/impeccable/scripts/live-copy-edit-agent.mjs and 13 more · reported by cisco-skill-scanner
56 SOCIAL_ENG_VAGUE_DESCRIPTION
The model could have called any of these a false positive and did not.
1 AAK-MCP-ENV-PLACEHOLDER-EXFIL-001
Files: template/scripts/wt-helper.ts · reported by agent-audit-kit
1 EXCESSIVE_FILE_COUNT
Files: /repo/template/docs/. · reported by cisco-skill-scanner
1 LOW_ANALYZABILITY
Files: /repo/template/docs/solutions · reported by cisco-skill-scanner
12 The model called these false positives and our own check did not agree, so the dismissal was refused.
Rules: OBFUSCATION_XOR_ENCODING, skills-missing-governance-commands/validate-starter.md, skills-missing-telemetry-commands/validate-starter.md · Files: /repo/.claude/skills/impeccable/scripts/embed-prompt.mjs, /repo/.claude/skills/impeccable/scripts/generate-image.mjs, /repo/template/.claude/skills/impeccable/scripts/embed-prompt.mjs and 2 more · reported by cisco-skill-scanner, agentshield
Artifact has critical command injection and credential exfiltration risks.
The artifact contains numerous instances of command injection via child processes and `eval` in JavaScript files, enabling shell execution. It also has critical findings related to potential credential exfiltration from environment variables and other sources. Additionally, the artifact exhibits extensive file system access and network egress of secrets, including JWT tokens and connection strings.
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/tasks/SKILL.md, /repo/decisions/SKILL.md and 53 more · reported by cisco-skill-scanner
48 opt.nerlo-rules.nerlo-js-secret-to-network-egress
Files: /repo/.claude/skills/impeccable/scripts/concept-seed.mjs, /repo/.claude/skills/impeccable/scripts/context.mjs, /repo/.claude/skills/impeccable/scripts/generate-image.mjs and 13 more · reported by nerlo-behavioral
43 HIDDEN_DATA_FILE
Files: /repo/template/openspec/changes/add-evlog-baseline-and-scaffolder-preset-flag/.openspec.yaml, /repo/template/openspec/changes/archive/2026-08-09-integrate-clade-project-bootstrap/.openspec.yaml, /repo/template/openspec/changes/archive/2026-05-14-improve-scaffold-ux-with-preset-picker/.openspec.yaml and 11 more · reported by cisco-skill-scanner
43 SECRET_PASSWORD_VAR
Files: /repo/.claude/skills/impeccable/scripts/live-browser.js, /repo/.claude/skills/impeccable/scripts/live/roots.mjs, /repo/.claude/skills/impeccable/scripts/live/sveltekit-adapter.mjs and 5 more · reported by cisco-skill-scanner
20 AAK-SECRET-004
Files: scripts/audit-template-hygiene.test.sh, template/.env.example, .claude/skills/impeccable/scripts/live-browser.js and 6 more · reported by agent-audit-kit
14 LOW_ANALYZABILITY
Files: /repo/.claude/skills/impeccable, /repo/template/.claude/skills/impeccable, /repo/template/presets/evlog-baseline and 11 more · reported by cisco-skill-scanner
14 opt.nerlo-rules.nerlo-install-run-bundled-artifact
Files: /repo/template/.claude/rules/cloudflare-workers.md, /repo/template/.claude/rules/follow-up-register.md, /repo/template/.claude/rules/handoff.md and 9 more · reported by nerlo-install-instruction
10 FILE_MAGIC_MISMATCH
Files: /repo/template/scripts/wt-helper.ts, /repo/template/scripts/dev-singleton.ts, /repo/template/scripts/check-vue-component-resolution.ts and 2 more · reported by cisco-skill-scanner
9 YARA_capability_inflation_generic
Files: /repo/.claude/skills/impeccable/reference/live.md, /repo/template/.claude/skills/impeccable/reference/live.md, /repo/.claude/skills/impeccable/reference/SKILL.md and 1 more · reported by cisco-skill-scanner
8 EXCESSIVE_FILE_COUNT
Files: /repo/.claude/skills/impeccable/., /repo/template/.claude/skills/impeccable/., /repo/template/.claude/skills/vueuse-functions/. and 5 more · reported by cisco-skill-scanner
8 SECRET_JWT_TOKEN
Files: /repo/template/.claude/skills/vueuse-functions/references/useJwt.md, /repo/template/packages/create-nuxt-starter/src/assemble.ts, /repo/template/.claude/skills/vueuse-functions/references/SKILL.md · reported by cisco-skill-scanner
5 AAK-HEALTHCARE-AI-004
Files: .claude/skills/impeccable/reference/critique.md, template/.claude/skills/spectra-ask/SKILL.md, template/.claude/skills/impeccable/reference/critique.md and 2 more · reported by agent-audit-kit
5 AAK-MCP-ATTEST-001
Files: template/.mcp.json, template/.cursor/mcp.json, template/packages/create-nuxt-starter/templates/features/database/.mcp.json · reported by agent-audit-kit
5 COMMAND_INJECTION_EVAL
Files: /repo/.claude/skills/impeccable/scripts/live/svelte-component.mjs, /repo/template/.claude/skills/impeccable/scripts/live/svelte-component.mjs · reported by cisco-skill-scanner
4 AAK-MCPFRAME-001
Files: .claude/skills/impeccable/scripts/serve-question.mjs, .claude/skills/impeccable/scripts/live/manual-edit-routes.mjs, template/.claude/skills/impeccable/scripts/serve-question.mjs and 1 more · reported by agent-audit-kit
4 PROMPT_INJECTION_CONCEALMENT
Files: /repo/.claude/skills/impeccable/reference/craft.md, /repo/template/.claude/skills/impeccable/reference/craft.md, /repo/.claude/skills/impeccable/reference/SKILL.md and 1 more · reported by cisco-skill-scanner
3 AAK-IPI-WILD-CORPUS-001
Files: template/.claude/rules/self-hosted-runner.md, template/.claude/skills/supabase-postgres-best-practices/references/security-privileges.md, template/.claude/skills/supabase-postgres-best-practices/references/schema-partitioning.md · reported by agent-audit-kit
3 AAK-LEGAL-002
Files: template/package.json, template/packages/create-nuxt-starter/package.json, template/packages/create-nuxt-starter/templates/base/package.json · reported by agent-audit-kit
3 AAK-MCP-001
Files: template/.mcp.json, template/.cursor/mcp.json, template/packages/create-nuxt-starter/templates/features/database/.mcp.json · reported by agent-audit-kit
3 AAK-MCP-009
Files: template/.mcp.json, template/.cursor/mcp.json, template/packages/create-nuxt-starter/templates/features/database/.mcp.json · reported by agent-audit-kit
3 AAK-TAINT-001
Files: template/scripts/dev-router.ts · reported by agent-audit-kit
3 PROMPT_INJECTION_IGNORE_INSTRUCTIONS
Files: /repo/template/.claude/skills/spectra-ask/SKILL.md, /repo/template/.cursor/skills/spectra-ask/SKILL.md, /repo/template/.cursor/commands/SKILL.md · reported by cisco-skill-scanner
3 SECRET_CONNECTION_STRING
Files: /repo/template/packages/create-nuxt-starter/src/features.ts · reported by cisco-skill-scanner
2 AAK-MCP-006
Files: template/.mcp.json, template/packages/create-nuxt-starter/templates/features/database/.mcp.json · reported by agent-audit-kit
2 AAK-MCP-014
Files: .claude/skills/impeccable/scripts/live-server.mjs, template/.claude/skills/impeccable/scripts/live-server.mjs · reported by agent-audit-kit
2 AAK-MCP-SSRF-001
Files: .claude/skills/impeccable/scripts/live-browser.js, template/.claude/skills/impeccable/scripts/live-browser.js · reported by agent-audit-kit
2 FIND_EXEC_PATTERN
Files: /repo/scripts/create-clean.sh · reported by cisco-skill-scanner
2 MANIFEST_INVALID_NAME
Files: /repo/template/.cursor/SKILL.md, /repo/.claude/commands/SKILL.md · reported by cisco-skill-scanner
2 opt.nerlo-rules.nerlo-hardcoded-external-egress
Files: /repo/.claude/skills/impeccable/scripts/generate-image.mjs, /repo/template/.claude/skills/impeccable/scripts/generate-image.mjs · reported by nerlo-behavioral
2 opt.nerlo-rules.nerlo-install-shell-inline-command
Files: /repo/template/.claude/rules/proactive-skills.dev-server-spawn.md, /repo/template/.claude/rules/self-hosted-runner.md · reported by nerlo-install-instruction
1 AAK-TAINT-003
Files: template/scripts/dev-router.ts · reported by agent-audit-kit
1 YARA_system_manipulation_generic
Files: /repo/template/.claude/rules/scope-discipline.md · reported by cisco-skill-scanner
Showing 25 of 1,186; the rest are in the per-scanner reports above.