Agent Skills: Git Platform Detection & Command Mapping

Table of Contents

• Overview
• When to Use
• Platform Detection
• Quick Command Reference
• Terminology
• Integration Pattern
• Detailed Resources
• Exit Criteria

Git Platform Detection & Command Mapping

Overview

Cross-platform abstraction for git forge operations. Detects whether the current project uses GitHub, GitLab, or Bitbucket, and provides equivalent CLI commands for each platform.

The SessionStart hook (detect-git-platform.sh) automatically injects the detected platform into session context. This skill provides the command reference for translating operations across platforms.

When To Use

• Before running gh, glab, or forge API commands
• When a skill or command needs to create issues, PRs/MRs, or post comments
• When writing CI/CD configuration
• Any time forge-specific CLI commands appear in a workflow

When NOT To Use

• Local-only git operations (git commit, git branch, etc.)
• Projects without a hosted git remote

Platform Detection

Detection is automatic via the SessionStart hook. The session context will contain:

git_platform: github|gitlab|bitbucket, cli: gh|glab, mr_term: pull request|merge request

If you need to re-detect manually:

# Check remote URL
git remote get-url origin 2>/dev/null

# Check file markers
ls -d .github/ .gitlab-ci.yml bitbucket-pipelines.yml 2>/dev/null

# Check CLI availability
command -v gh && echo "GitHub CLI available"
command -v glab && echo "GitLab CLI available"

Quick Command Reference

| Operation | GitHub (gh) | GitLab (glab) | |-----------|---------------|-----------------| | View issue | gh issue view N --json title,body,labels | glab issue view N | | List issues | gh issue list --json number,title | glab issue list | | Create issue | gh issue create --title "T" --body "B" | glab issue create --title "T" --description "B" | | Close issue | gh issue close N | glab issue close N | | Comment on issue | gh issue comment N --body "msg" | glab issue note N --message "msg" | | View PR/MR | gh pr view N | glab mr view N | | Create PR/MR | gh pr create --title "T" --body "B" | glab mr create --title "T" --description "B" | | List PR/MR comments | gh api repos/O/R/pulls/N/comments | glab mr note list N | | Current PR/MR | gh pr view --json number | glab mr view --json iid | | Resolve threads | gh api graphql | glab api graphql | | Repo info | gh repo view --json owner,name | glab repo view |

For Bitbucket: No standard CLI exists. Use REST API (curl) or the web interface. See command-mapping module for API equivalents.

Terminology

| Concept | GitHub | GitLab | Bitbucket | |---------|--------|--------|-----------| | Code review unit | Pull Request (PR) | Merge Request (MR) | Pull Request (PR) | | CI configuration | .github/workflows/*.yml | .gitlab-ci.yml | bitbucket-pipelines.yml | | Default branch | main | main | main | | Review comments | PR review comments | MR discussion notes | PR comments |

Important: When the platform is GitLab, always say "merge request" (not "pull request") in user-facing output, commit messages, and comments.

Integration Pattern

Skills that perform forge operations should:

1. Declare dependencies: [leyline:git-platform]
2. Check the session context for git_platform:
3. Use the command mapping table above
4. Fall back gracefully if CLI is unavailable

# Example skill instruction pattern:

## Step N: Create PR/MR

Use the detected platform CLI (check session context for `git_platform`):
- **GitHub**: `gh pr create --title "..." --body "..."`
- **GitLab**: `glab mr create --title "..." --description "..."`
- **Bitbucket**: Create via web interface

Detailed Resources

• Full command mapping: See modules/command-mapping.md for complete API equivalents, GraphQL queries, and Bitbucket REST API patterns
• Authentication: See Skill(leyline:authentication-patterns) for ensure_auth github|gitlab

Exit Criteria

• Platform detected (or explicitly unknown)
• Correct CLI tool used for all forge operations
• Platform-appropriate terminology in user-facing output