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Get Started Free →Curated catalog of 60+ external Claude Code skills across 8 categories with quality rankings, install instructions, and fallback strategies
.claude/skills/external-skills-catalog/SKILL.md| Test case | Without → With | Effect | Δ tokens | Δ turns |
|---|---|---|---|---|
| case-12 | ✗→✓ | ▲ Improved | — | — |
| case-07 | ✗→✓ | ▲ Improved | — | — |
| case-08 | ✗→✓ | ▲ Improved | — | — |
| case-03 | ✗→✓ | ▲ Improved | — | — |
| case-18 | ✗→✓ | ▲ Improved | — | — |
Curated directory of community and official Claude Code skills. Use this when the user needs a capability that vibecosystem doesn't cover natively, or when recommending external tools.
Skills are ranked by reliability and maintenance:
| Tier | Label | Criteria | |------|-------|----------| | 1 | Official | Made by Anthropic or verified partners | | 2 | Well-starred | 50+ GitHub stars, active maintenance, good docs | | 3 | Community | Open source, functional, may lack polish |
Always prefer higher-tier skills. Mention tier when recommending.
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | PDF extraction | Various MCP servers | Parse, extract, summarize PDF content | 2 | | Markdown linting | markdownlint | Enforce consistent markdown style | 2 | | Technical writing | Community | Style guides, API docs, changelogs | 3 | | Content generation | Community | Blog posts, social media, copywriting | 3 |
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | GitHub integration | Official MCP | Issues, PRs, code search, reviews | 1 | | Linear integration | Community MCP | Issue tracking, sprint management | 2 | | Sentry integration | Community MCP | Error tracking, issue resolution | 2 | | Database clients | Various MCP | PostgreSQL, MySQL, SQLite direct access | 2 | | Docker management | Community | Container lifecycle, compose orchestration | 3 | | Regex builder | Community | Visual regex construction and testing | 3 |
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | Secret scanning | Community | Detect leaked credentials in repos | 2 | | Dependency audit | npm audit / snyk | CVE scanning, vulnerability assessment | 2 | | SBOM generation | Community | Software bill of materials | 3 | | License checker | Community | Dependency license compliance | 3 |
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | BigQuery client | Community MCP | Query, analyze, visualize data | 2 | | Jupyter integration | Community | Notebook creation and execution | 3 | | CSV/Excel processing | Community | Data transformation, analysis | 3 | | Chart generation | Community | Data visualization, dashboards | 3 |
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | SEO analysis | Community | Site audit, keyword research | 3 | | Social media | Community | Post scheduling, analytics | 3 | | Email templates | Community | Marketing emails, newsletters | 3 | | A/B test design | Community | Experiment design, analysis | 3 |
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | Figma integration | Community MCP | Design token extraction, component mapping | 2 | | Image generation | Various APIs | AI image creation via MCP | 2 | | SVG manipulation | Community | Icon creation, optimization | 3 | | Color palette | Community | Color scheme generation, contrast checking | 3 |
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | Notion integration | Official MCP | Pages, databases, project tracking | 1 | | Slack integration | Official MCP | Messaging, channel management | 1 | | Jira integration | Community MCP | Issue tracking, sprint boards | 2 | | Calendar management | Community MCP | Scheduling, reminders | 3 |
| Skill | Source | Description | Tier | |-------|--------|-------------|------| | Cloudflare | Community MCP | Workers, DNS, CDN management | 2 | | Vercel | Community MCP | Deployment, serverless functions | 2 | | Supabase | Community MCP | Database, auth, storage | 2 | | AWS CDK | Community | Infrastructure as code patterns | 3 |
bash# MCP-based skills: add to ~/.claude/mcp.json or project .mcp.json { "mcpServers": { "skill-name": { "command": "npx", "args": ["-y", "@package/mcp-server"] } } } # Prompt-based skills: add to ~/.claude/commands/ or project .claude/commands/ mkdir -p .claude/commands echo "skill content here" > .claude/commands/skill-name.md
MCP skills can be added via Settings > Integrations > MCP Servers.
When the needed skill doesn't exist:
Step 1: WORKAROUND
→ Can an existing vibecosystem skill handle it partially?
→ Example: No "email" skill? Use copywriter agent + manual send
Step 2: COMBO
→ Can 2+ existing skills combine to solve it?
→ Example: No "API mock" skill? Use mocksmith + backend-dev
Step 3: CREATE
→ Is it worth creating a new internal skill?
→ Use /skill-create to generate from session patterns
Step 4: EXTERNAL
→ Search this catalog for a community skill
→ Check: https://github.com/topics/claude-code
→ Check: https://github.com/topics/mcp-server
→ Web search: "claude code [capability] skill 2026"The external ecosystem grows fast. When this catalog doesn't have what you need:
claude code skill [keyword] or mcp server [keyword]| Case | Status | Duration (ms) | Turns | Tokens | Tool calls | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Without | With | Δ | Without | With | Δ | Without | With | Δ | Without | With | Δ | ||
case-22 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-21 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-12 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-10 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-07 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-08 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-03 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-18 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-11 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-19 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-17 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-13 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-09 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-02 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-05 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-01 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-15 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-16 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-04 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-20 | fail→fail | — | — | — | — | — | — | — | — | — | — | — | — |
case-06 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
case-14 | fail→pass | — | — | — | — | — | — | — | — | — | — | — | — |
DecimalAI ran this skill against gemini-3.6-flash twice over the same eval suite — once with the skill loaded and once without — and compared the two runs case by case. 22 cases were attempted. The headline lift of +77 percentage points is the difference between those two pass rates over the 22 comparable cases.
The per-case answers from this run were removed by the retention sweep, so the case table below shows the verdicts without the text either arm produced. The counts above were recorded at the time and are unaffected. Answers are now kept for 180 days.
Other measured skills in the registry, with their headline benchmark lift.