OASR

Open Agent Skill Registry — Register, sync, and reuse AI agent skills across IDEs with a single source of truth.

For a non-exhaustive list of highlighted features, see FEATURES.md.

The Problem

You've built useful skills for your AI coding assistant. They work great in Cursor. Now you want them in Windsurf. And Claude. And Copilot.

Each tool expects skills in different locations with different formats:

• Cursor: .cursor/commands/
• Windsurf: .windsurf/workflows/
• Claude: .claude/commands/
• Copilot: .github/prompts/

So you copy your skills everywhere. Then you improve one. Now the copies are stale. You forget which version is current. Some break silently. This is skill drift.

The Solution

ASR keeps your skills in a registry, syncs local and remote sources, and generates thin adapters for each IDE. It also lets you execute skills safely with policy profiles.

Key capabilities:

• Register skills once (local folders or GitHub/GitLab URLs)
• Sync and track drift across sources
• Generate IDE adapters and run skills via oasr exec

┌─────────────────────────────────────────────────────────┐
│           Your Skills (canonical source)                │
│           ~/skills/git-commit/SKILL.md                  │
│           ~/skills/code-review/SKILL.md                 │
└───────────────────────┬─────────────────────────────────┘
                        │
                        ▼
                   oasr adapter
                        │
        ┌───────────────┼──────────────┐...───────────────┐
        ▼               ▼              ▼                  ▼
   .cursor/        .windsurf/       .claude/           <vendor>/
   commands/       workflows/       commands/           skills/

No copying. No drift. One source of truth.

Quick Example

List all registered skills with metadata

# Register local skills
oasr registry add ~/skills/git-commit
oasr registry add ~/skills/code-review

# List registered skills
oasr registry list

# Register remote skills from GitHub/GitLab
oasr registry add https://github.com/user/skills-repo/tree/main/my-skill
oasr registry add https://gitlab.com/org/project/tree/main/cool-skill

# Generate adapters for a project
oasr adapter --output-dir ~/projects/my-app

# Result:
# ~/projects/my-app/.cursor/commands/git-commit.md
# ~/projects/my-app/.windsurf/workflows/git-commit.md
# ~/projects/my-app/.claude/commands/git-commit.md

Remote Skills

Register skills directly from GitHub or GitLab

ASR supports registering skills directly from GitHub and GitLab repositories:

# Add a skill from GitHub
oasr registry add https://github.com/user/repo/tree/main/skills/my-skill

# Add a skill from GitLab
oasr registry add https://gitlab.com/org/project/tree/dev/cool-skill

# Sync remote skills (check for updates)
oasr registry sync

# Use remote skills
oasr clone my-skill -d ./output

Authentication (optional, for private repos and higher rate limits):

export GITHUB_TOKEN=ghp_your_token_here
export GITLAB_TOKEN=glpat_your_token_here

Remote skills are fetched on-demand during adapter and clone operations. The registry stores the URL, and oasr registry sync checks if the remote source has changed.

Shell Completions

OASR supports intelligent tab completion for Bash, Zsh, Fish, and PowerShell:

# Install for your current shell
oasr completion install

# Install for a specific shell (shortcut)
oasr completion zsh --install

# Now try it:
oasr <TAB>          # Complete commands
oasr info <TAB>     # Complete skill names
oasr exec --<TAB>   # Complete flags

Completions are dynamic — skill names, agents, and profiles are fetched live from your registry.

See oasr completion --help for details.

JSON Output

Use --json for legacy JSON output. Use --json v2 for the structured envelope with version, success, command, and error fields.

Accessibility

• Disable ANSI colors: NO_COLOR=1 oasr ... or OASR_NO_COLOR=1 oasr ...
• Use ASCII symbols: OASR_NO_UNICODE=1 oasr ...

Documentation

• Quickstart — Installation and first steps
• Commands — Full command reference
• Validation — Validation rules and error codes

Supported oasr adapter IDEs

License

See LICENSE.

Screenshots

Command Examples

Command	Screenshot
oasr registry list
oasr registry add (local)
oasr registry add (remote)
oasr registry sync
oasr registry prune
oasr registry (validate)
oasr find
oasr adapter
oasr clone
oasr diff
oasr sync
oasr exec
oasr profile
oasr completion
oasr config
oasr validate

See docs/.images/ for all screenshots.