external-skills-catalog

External Skills Catalog

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.

When to Use

• User asks for a skill/capability that doesn't exist in vibecosystem
• User wants to discover what else is available for Claude Code
• Recommending complementary skills for a specific workflow
• Fallback when internal skills can't fully handle a request

Quality Ranking

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.

Catalog by Category

Document & Content

| 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 |

Development & Code

| 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 |

Security & Compliance

| 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 |

Data & Analytics

| 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 |

Marketing & Growth

| 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 |

Creative & Design

| 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 |

Project Management

| 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 |

Platform & Infrastructure

| 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 |

Install Instructions

Claude Code (CLI)

# 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

Claude.ai (Web)

MCP skills can be added via Settings > Integrations > MCP Servers.

Fallback Strategy

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"

Discovering New Skills

The external ecosystem grows fast. When this catalog doesn't have what you need:

1. Search GitHub: claude code skill [keyword] or mcp server [keyword]
2. Check MCP server directories for new integrations
3. Look at Claude Code community discussions
4. Consider building and contributing your own

Tips

• Always verify external skills before recommending (check repo activity, stars, last commit)
• Prefer MCP-based skills for deeper integration
• Prompt-based skills are easier to install but less powerful
• When recommending, include the install command so the user can act immediately
• If a skill has known issues, mention them upfront