Repository Configuration

Repositories allow you to define where FastSkill should look for skills. FastSkill supports multiple repository types, all configured through a unified interface. Important: Repositories are used for skill discovery only. They define where skills come FROM. The storage location (where skills are installed when you run fastskill add) is configured separately in .fastskill/config.yaml via the skills_directory setting.

Configuration File

Repository configuration is stored in the [tool.fastskill.repositories] section of skill-project.toml at your project root:

# skill-project.toml

[dependencies]
# ... skill dependencies ...

[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "anthropic"
type = "git-marketplace"
url = "https://github.com/anthropics/skills"
priority = 0

[[tool.fastskill.repositories]]
name = "public-registry"
type = "http-registry"
index_url = "https://api.fastskill.io/index"
priority = 1
auth = { type = "pat", env_var = "FASTSKILL_TOKEN" }

[[tool.fastskill.repositories]]
name = "team-tools"
type = "git-marketplace"
url = "https://github.com/org/team-skills.git"
branch = "main"
priority = 2

[[tool.fastskill.repositories]]
name = "local-dev"
type = "local"
path = "./local-skills"
priority = 3

Note: Repositories are searched in priority order (lower number = higher priority). If multiple repositories have the same priority, the first one in the file is used.

Source Types

Git Marketplace Sources

Git marketplace sources reference a Git repository that contains skills organized with a marketplace.json file.

Complete Setup Workflow

1. Create a Git Repository

# Create new repository
mkdir my-skills-repo
cd my-skills-repo
git init

2. Create Skill Structure

# Create skills directory structure
mkdir -p skills/web-scraper skills/data-analyzer

# Create skill files
cat > skills/web-scraper/SKILL.md << 'EOF'
---
name: "web-scraper"
description: "Web scraping skill for data extraction"
version: "1.0.0"
author: "Your Team"
tags: ["web", "scraping", "data"]
capabilities: ["scrape_website", "extract_data"]
---

# Web Scraper Skill

This skill provides tools for web scraping and data extraction.
EOF

cat > skills/web-scraper/skill-project.toml << 'EOF'
[metadata]
id = "web-scraper"
version = "1.0.0"
description = "Web scraping skill for data extraction"
author = "Your Team"
tags = ["web", "scraping", "data"]
capabilities = ["scrape_website", "extract_data"]
download_url = "https://github.com/your-org/my-skills-repo/releases/download/v1.0.0/web-scraper-1.0.0.zip"
EOF

3. Generate Marketplace.json

# Use fastskill to generate marketplace.json
fastskill marketplace create ./skills --name my-skills-repo

# This creates .claude-plugin/marketplace.json

4. Configure Repository

# skill-project.toml (in your project)
[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "my-skills-repo"
type = "git-marketplace"
url = "https://github.com/your-org/my-skills-repo.git"
branch = "main"
priority = 0

5. Test Repository

# Add the repository to your project
fastskill repos add my-skills-repo \
  --repo-type git-marketplace \
  https://github.com/your-org/my-skills-repo.git \
  --priority 0

# List skills from the repository
fastskill repos skills --repository my-skills-repo

# Install a skill
fastskill add my-skills-repo/web-scraper

Configuration Options

[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "team-skills"
type = "git-marketplace"
url = "https://github.com/org/skills.git"
branch = "main"        # Default: main
tag = "v1.0.0"         # Optional: pin to specific tag
priority = 0           # Lower number = higher priority

Requirements:

Repository must contain marketplace.json in one of these locations:
- Claude Code standard: .claude-plugin/marketplace.json (recommended)
- Root location: marketplace.json (legacy support)
Marketplace.json should reference skills available in the repository

Marketplace.json locations (checked in priority order):

{url}/.claude-plugin/marketplace.json (Claude Code standard - tried first)
{url}/marketplace.json (root location - fallback) Both are fetched via raw content API (e.g., raw.githubusercontent.com)

Advanced Examples

Private Repository with Authentication:

[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "private-skills"
type = "git-marketplace"
url = "https://github.com/org/private-skills.git"
branch = "main"
priority = 0
auth = { type = "pat", env_var = "GITHUB_TOKEN" }

Monorepo with Multiple Skill Directories:

# Repository structure
org-skills/
├── packages/
│   ├── web-skills/
│   │   ├── marketplace.json  # Skills: scraper, crawler
│   └── data-skills/
│       ├── marketplace.json  # Skills: analyzer, processor
└── .claude-plugin/
    └── marketplace.json      # Root marketplace pointing to packages

Branch-based Development:

[[tool.fastskill.repositories]]
name = "dev-skills"
type = "git-marketplace"
url = "https://github.com/org/skills.git"
branch = "develop"     # Use develop branch for latest features
priority = 1

[[tool.fastskill.repositories]]
name = "stable-skills"
type = "git-marketplace"
url = "https://github.com/org/skills.git"
branch = "main"        # Use main branch for stable releases
priority = 0

HTTP Registry Sources

HTTP-based registries provide skills through REST APIs with centralized index and blob storage.

Complete Setup Workflow

1. Registry Server Setup

# Start FastSkill registry server
fastskill serve --port 8080

# Or use a hosted registry service
# FASTSKILL_API_URL=https://registry.yourcompany.com

2. Authentication Setup

# Set token directly for authenticated downloads
export FASTSKILL_API_TOKEN="your-token"

3. Configure Repository

# skill-project.toml
[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "company-registry"
type = "http-registry"
index_url = "https://registry.yourcompany.com"
priority = 0
auth = { type = "pat", env_var = "FASTSKILL_API_TOKEN" }

4. Browse and Install Skills

# List all skills in registry
fastskill repos skills --repository company-registry

# List skills by scope
fastskill repos skills --repository company-registry --scope engineering

# Search for skills
fastskill search "data analysis" --repo company-registry

# Get skill details
fastskill repos show engineering/data-analyzer --repository company-registry

# List skill versions
fastskill repos versions engineering/data-analyzer --repository company-registry

# Install skill
fastskill add engineering/data-analyzer

Configuration Options

[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "production-registry"
type = "http-registry"
index_url = "https://api.fastskill.io/index"           # Required: Index API endpoint
priority = 0                                          # Search priority
auth = { type = "pat", env_var = "FASTSKILL_TOKEN" }  # Authentication (optional)

Authentication Types

Personal Access Token (PAT):

auth = { type = "pat", env_var = "FASTSKILL_TOKEN" }

API Key:

auth = { type = "api_key", env_var = "FASTSKILL_API_KEY" }

Basic Authentication:

auth = { type = "basic", username = "user", env_var = "FASTSKILL_PASSWORD" }

SSH Key:

auth = { type = "ssh-key", auth_key_path = "~/.ssh/fastskill_key" }

Advanced Examples

Multi-Environment Setup:

# Development registry
[[tool.fastskill.repositories]]
name = "dev-registry"
type = "http-registry"
index_url = "https://dev-registry.company.com"
priority = 1

# Staging registry
[[tool.fastskill.repositories]]
name = "staging-registry"
type = "http-registry"
index_url = "https://staging-registry.company.com"
priority = 2

# Production registry
[[tool.fastskill.repositories]]
name = "prod-registry"
type = "http-registry"
index_url = "https://registry.company.com"
priority = 0

Cross-Organization Sharing:

# Public registry
[[tool.fastskill.repositories]]
name = "public"
type = "http-registry"
index_url = "https://api.fastskill.io/index"
priority = 2

# Company private registry
[[tool.fastskill.repositories]]
name = "company-private"
type = "http-registry"
index_url = "https://registry.company.com"
priority = 0
auth = { type = "pat", env_var = "COMPANY_TOKEN" }

Use fastskill repos skills to list skills from HTTP registries. The command calls GET /api/v1/registry/index/skills on the configured registry’s index_url. The registry server serves index files at /index/{skill_id} where skill_id follows the format {scope}/{skill-name} (e.g., dev-user/web-scraper).

ZIP URL Sources

ZIP URL sources provide skills through static hosting with pre-packaged ZIP archives.

Complete Setup Workflow

1. Prepare Skill Packages

# Create skills directory and place packaged skill ZIPs
mkdir skills-packs
cd skills-packs

# Each skill must be packaged as a ZIP artifact
# (e.g. web-scraper-1.0.0.zip, data-analyzer-1.0.0.zip)

2. Create Marketplace.json

// marketplace.json
{
  "name": "company-tools",
  "owner": {
    "name": "Engineering Team",
    "email": "engineering@company.com"
  },
  "metadata": {
    "description": "Official company skill collection",
    "version": "1.0.0"
  },
  "plugins": [
    {
      "name": "tools",
      "description": "Company skill plugins",
      "source": "./",
      "strict": false,
      "skills": [
        {
          "name": "web-scraper",
          "description": "Web scraping utilities",
          "download_url": "./packages/web-scraper-1.0.0.zip"
        },
        {
          "name": "data-analyzer",
          "description": "Data analysis tools",
          "download_url": "./packages/data-analyzer-1.0.0.zip"
        }
      ]
    }
  ]
}

3. Host Files

# Upload to static hosting (GitHub Pages, S3, etc.)
# Directory structure:
# https://skills.company.com/
# ├── marketplace.json
# └── packages/
#     ├── web-scraper-1.0.0.zip
#     └── data-analyzer-1.0.0.zip

4. Configure Repository

# skill-project.toml
[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "company-tools"
type = "zip-url"
base_url = "https://skills.company.com/"
priority = 0

5. Test Repository

# Add repository
fastskill repos add company-tools \
  --repo-type zip-url \
  https://skills.company.com/ \
  --priority 0

# List available skills
fastskill repos skills --repository company-tools

# Install skills
fastskill add company-tools/web-scraper
fastskill add company-tools/data-analyzer

Configuration Options

[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "official-skills"
type = "zip-url"
base_url = "https://example.com/skills/"     # Required: Base URL for marketplace.json
priority = 0                                # Search priority

Hosting Examples

GitHub Pages:

# Repository: your-org/skills
# Branch: gh-pages
# URL structure:
# https://your-org.github.io/skills/
# ├── marketplace.json
# └── packages/
#     └── skill-1.0.0.zip

Amazon S3:

# Bucket: skills.company.com
# Public access enabled
# URL: https://skills.company.com.s3.amazonaws.com/

Nginx/Apache Static Hosting:

# Server configuration serves static files
# URL: https://skills.company.com/

Marketplace.json Requirements

The marketplace.json file must include download_url fields pointing to ZIP files:

{
  "plugins": [
    {
      "skills": [
        {
          "name": "my-skill",
          "description": "Skill description",
          "download_url": "./packages/my-skill-1.0.0.zip"
        }
      ]
    }
  ]
}

CI/CD Pipeline Example

GitHub Actions for Automated Deployment:

name: Deploy Skills
on:
  push:
    branches: [main]
    paths: ['skills/**']

jobs:
  deploy:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3

      - name: Generate marketplace.json
        run: fastskill marketplace create ./skills --output ./marketplace.json

      - name: Deploy to GitHub Pages
        uses: peaceiris/actions-gh-pages@v3
        with:
          github_token: ${{ secrets.GITHUB_TOKEN }}
          publish_dir: ./
          publish_branch: gh-pages

Advanced Examples

Versioned Releases:

# Directory structure for versioned hosting
skills.company.com/
├── v1.0/
│   ├── marketplace.json
│   └── packages/
├── v2.0/
│   ├── marketplace.json
│   └── packages/
└── latest/ -> v2.0/  # Symlink to latest version

Multi-Environment:

# Development skills
[[tool.fastskill.repositories]]
name = "dev-skills"
type = "zip-url"
base_url = "https://dev-skills.company.com/"
priority = 2

# Production skills
[[tool.fastskill.repositories]]
name = "prod-skills"
type = "zip-url"
base_url = "https://skills.company.com/"
priority = 0

Requirements:

Base URL must serve marketplace.json in one of these locations:
- Claude Code standard: .claude-plugin/marketplace.json (recommended)
- Root location: marketplace.json (legacy support)
Marketplace.json should include download_url for each skill

Marketplace.json locations (checked in priority order):

{base_url}/.claude-plugin/marketplace.json (Claude Code standard - tried first)
{base_url}/marketplace.json (root location - fallback)

Local Sources

Local sources provide skills from filesystem directories for development and testing.

Complete Setup Workflow

1. Create Local Skills Directory

# Create local skills repository
mkdir -p ~/local-skills
cd ~/local-skills

# Create skill directories
mkdir -p experimental/test-skill prototype/web-tool

2. Create Skill Files

# Create test skill
cat > experimental/test-skill/SKILL.md << 'EOF'
---
name: "test-skill"
description: "Experimental testing skill"
version: "0.1.0"
author: "Developer"
tags: ["testing", "experimental"]
capabilities: ["run_tests", "validate_data"]
---

# Test Skill

Experimental skill for testing FastSkill functionality.
EOF

cat > experimental/test-skill/skill-project.toml << 'EOF'
[metadata]
id = "test-skill"
version = "0.1.0"
description = "Experimental testing skill"
author = "Developer"
tags = ["testing", "experimental"]
capabilities = ["run_tests", "validate_data"]
EOF

# Create prototype skill
cat > prototype/web-tool/SKILL.md << 'EOF'
---
name: "web-tool"
description: "Web utility tools"
version: "0.1.0"
author: "Developer"
tags: ["web", "utility"]
capabilities: ["http_request", "parse_html"]
---

# Web Tool

Prototype web utility skill.
EOF

cat > prototype/web-tool/skill-project.toml << 'EOF'
[metadata]
id = "web-tool"
version = "0.1.0"
description = "Web utility tools"
author = "Developer"
tags = ["web", "utility"]
capabilities = ["http_request", "parse_html"]
EOF

3. Generate Marketplace.json (Optional)

# Generate marketplace.json for the local repository
fastskill marketplace create ~/local-skills --name local-dev

4. Configure Repository

# skill-project.toml
[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "local-dev"
type = "local"
path = "~/local-skills"
priority = 0

5. Test Local Repository

# Add local repository
fastskill repos add local-dev \
  --repo-type local \
  ~/local-skills \
  --priority 0

# List local skills
fastskill repos skills --repository local-dev

# Install local skills
fastskill add local-dev/test-skill
fastskill add local-dev/web-tool

# Test skill functionality
fastskill read local-dev/test-skill

Configuration Options

[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "local-dev"
type = "local"
path = "./local-skills"     # Required: Local directory path
priority = 0               # Search priority

Directory Structure

Local repositories support flexible directory structures:

local-skills/
├── single-skill/
│   └── SKILL.md
├── category1/
│   ├── skill-a/
│   │   └── SKILL.md
│   └── skill-b/
│       └── SKILL.md
├── category2/
│   └── nested/
│       └── skill-c/
│           └── SKILL.md
└── marketplace.json (optional)

Skill ID Generation:

single-skill → ID: single-skill
category1/skill-a → ID: category1/skill-a
category2/nested/skill-c → ID: category2/nested/skill-c

Development Workflow

Rapid Iteration:

# Edit skill code
vim ~/local-skills/experimental/test-skill/scripts/test.js

# Test changes immediately
fastskill add local-dev/test-skill --force

# No build step needed for local development

Version Control Integration:

# Local skills can be git repositories
cd ~/local-skills
git init
git add .
git commit -m "Add experimental skills"

# Or reference external git repos
fastskill repos add external-dev \
  --repo-type git-marketplace \
  ~/projects/external-skills \
  --priority 1

Hot Reloading

Local sources support hot reloading during development:

# Enable hot reloading (if supported)
export FASTSKILL_HOT_RELOAD=true

# Changes to local skills are picked up automatically
# No need to reinstall after file modifications

Testing and Validation

Skill Validation:

# Validate local skills
fastskill eval validate ~/local-skills

# Check for common issues
fastskill eval validate ~/local-skills --strict

Integration Testing:

# Test skill in different contexts
fastskill add local-dev/test-skill
fastskill read local-dev/test-skill
fastskill list | grep local-dev

Advanced Examples

Multi-Developer Setup:

# Individual developer repositories
[[tool.fastskill.repositories]]
name = "alice-dev"
type = "local"
path = "../alice/local-skills"
priority = 2

[[tool.fastskill.repositories]]
name = "bob-dev"
type = "local"
path = "../bob/experimental"
priority = 3

# Shared team repository
[[tool.fastskill.repositories]]
name = "team-shared"
type = "local"
path = "./team-skills"
priority = 1

CI/CD Testing:

# GitHub Actions example
- name: Test local skills
  run: |
    fastskill repos add test-repo \
      --repo-type local \
      ./test-skills

    fastskill eval validate ./test-skills
    fastskill add test-repo/test-skill
    fastskill read test-repo/test-skill

Note: Local sources are not displayed in the registry web UI. They are only available for direct CLI operations.

Marketplace.json Requirement

Only Git and Zip URL sources are supported in the registry because they can provide marketplace.json files. The registry will:

Fetch marketplace.json from the source URL
Cache the response for 5 minutes (TTL)
Display skills from the marketplace in the web UI

Sources without marketplace.json will not appear in the registry.

Managing Sources

Adding a Repository

Add a new repository using the CLI:

fastskill repos add new-source --repo-type git-marketplace https://github.com/user/repo.git --priority 0

Or edit skill-project.toml directly:

[tool.fastskill.repositories]
[[tool.fastskill.repositories]]
name = "new-source"
type = "git-marketplace"
url = "https://github.com/user/repo.git"
priority = 0

Removing a Repository

Remove the repository using fastskill repos remove <name> or edit skill-project.toml directly.

Best Practices

Use descriptive names: Repository names should clearly identify the repository
Version control: Keep skill-project.toml in version control (includes repository configuration)
Update marketplace.json: Regularly regenerate marketplace.json when skills change
HTTPS: Use HTTPS URLs for security
Caching: Be aware that marketplace.json is cached for 5 minutes
Priority ordering: Use priority values to control repository search order

​Repository Configuration

​Configuration File

​Source Types

​Git Marketplace Sources

​Complete Setup Workflow

​Configuration Options

​Advanced Examples

​HTTP Registry Sources

​Complete Setup Workflow

​Configuration Options

​Authentication Types

​Advanced Examples

​ZIP URL Sources

​Complete Setup Workflow

​Configuration Options

​Hosting Examples

​Marketplace.json Requirements

​CI/CD Pipeline Example

​Advanced Examples

​Local Sources

​Complete Setup Workflow

​Configuration Options

​Directory Structure

​Development Workflow

​Hot Reloading

​Testing and Validation

​Advanced Examples

​Marketplace.json Requirement

​Managing Sources

​Adding a Repository

​Removing a Repository

​Best Practices

​Troubleshooting

​Source Not Appearing in Registry

​Marketplace.json Not Found

​See Also

Repository Configuration

Configuration File

Source Types

Git Marketplace Sources

Complete Setup Workflow

Configuration Options

Advanced Examples

HTTP Registry Sources

Complete Setup Workflow

Configuration Options

Authentication Types

Advanced Examples

ZIP URL Sources

Complete Setup Workflow

Configuration Options

Hosting Examples

Marketplace.json Requirements

CI/CD Pipeline Example

Advanced Examples

Local Sources

Complete Setup Workflow

Configuration Options

Directory Structure

Development Workflow

Hot Reloading

Testing and Validation

Advanced Examples

Marketplace.json Requirement

Managing Sources

Adding a Repository

Removing a Repository

Best Practices

Troubleshooting

Source Not Appearing in Registry

Marketplace.json Not Found

See Also