MCPInstall

glab

by henricookDevOps & Cloud

Expert guidance for using the GitLab CLI (glab) to manage GitLab issues, merge requests, CI/CD pipelines, repositories, and other GitLab operations from the command line. Use this skill when the user needs to interact with GitLab resources or perform GitLab workflows.

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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/henricook/claude-glab-skill --skill glab
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads glab automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

GitLab CLI (glab) Skill

Provides guidance for using glab, the official GitLab CLI, to perform GitLab operations from the terminal.

When to Use This Skill

Invoke when the user needs to:

  • Create, review, or manage merge requests
  • Work with GitLab issues
  • Monitor or trigger CI/CD pipelines
  • Clone or manage repositories
  • Perform any GitLab operation from the command line

Prerequisites

Verify glab installation before executing commands:

glab --version

If not installed, inform the user and provide platform-specific installation guidance.

Authentication Quick Start

Most glab operations require authentication:

# Interactive authentication
glab auth login

# Check authentication status
glab auth status

# For self-hosted GitLab
glab auth login --hostname gitlab.example.org

# Using environment variables
export GITLAB_TOKEN=your-token
export GITLAB_HOST=gitlab.example.org  # for self-hosted

Core Workflows

Creating a Merge Request

# 1. Ensure branch is pushed
git push -u origin feature-branch

# 2. Create MR
glab mr create --title "Add feature" --description "Implements X"

# With reviewers and labels
glab mr create --title "Fix bug" --reviewer=alice,bob --label="bug,urgent"

Reviewing Merge Requests

# 1. List MRs awaiting your review
glab mr list --reviewer=@me

# 2. Checkout MR locally to test
glab mr checkout <mr-number>

# 3. After testing, approve
glab mr approve <mr-number>

# 4. Add review comments
glab mr note <mr-number> -m "Please update tests"

Managing Issues

# Create issue with labels
glab issue create --title "Bug in login" --label=bug

# Link MR to issue
glab mr create --title "Fix login" --description "Closes #<issue-number>"

# List your assigned issues
glab issue list --assignee=@me

Monitoring CI/CD

# Watch pipeline in progress
glab pipeline ci view

# Check pipeline status
glab ci status

# View logs if failed
glab ci trace

# Retry failed pipeline
glab ci retry

# Lint CI config before pushing
glab ci lint

Common Patterns

Working Outside Repository Context

When not in a Git repository, specify the repository:

glab mr list -R owner/repo
glab issue list -R owner/repo

Self-Hosted GitLab

Set hostname for all commands:

export GITLAB_HOST=gitlab.example.org
# or per-command
glab repo clone gitlab.example.org/owner/repo

Automation and Scripting

Use JSON output for parsing:

glab mr list --output=json | jq '.[] | .title'

Using the API Command

The glab api command provides direct GitLab API access:

# Basic API call
glab api projects/:id/merge_requests

# IMPORTANT: Pagination uses query parameters in URL, NOT flags
# ❌ WRONG: glab api --per-page=100 projects/:id/jobs
# ✓ CORRECT: glab api "projects/:id/jobs?per_page=100"

# Auto-fetch all pages
glab api --paginate "projects/:id/pipelines/123/jobs?per_page=100"

# POST with data
glab api --method POST projects/:id/issues --field title="Bug" --field description="Details"

Best Practices

  1. Verify authentication before executing commands: glab auth status
  2. Use --help to explore command options: glab <command> --help
  3. Link MRs to issues using "Closes #123" in MR description
  4. Lint CI config before pushing: glab ci lint
  5. Check repository context when commands fail: git remote -v

Common Commands Quick Reference

Merge Requests:

  • glab mr list --assignee=@me - Your assigned MRs
  • glab mr list --reviewer=@me - MRs for you to review
  • glab mr create - Create new MR
  • glab mr checkout <number> - Test MR locally
  • glab mr approve <number> - Approve MR
  • glab mr merge <number> - Merge approved MR

Issues:

  • glab issue list - List all issues
  • glab issue create - Create new issue
  • glab issue close <number> - Close issue

CI/CD:

  • glab pipeline ci view - Watch pipeline
  • glab ci status - Check status
  • glab ci lint - Validate .gitlab-ci.yml
  • glab ci retry - Retry failed pipeline

Repository:

  • glab repo clone owner/repo - Clone repository
  • glab repo view - View repo details
  • glab repo fork - Fork repository

Progressive Disclosure

For detailed command documentation, refer to:

  • references/commands-detailed.md - Comprehensive command reference with all flags and options
  • references/quick-reference.md - Condensed command cheat sheet
  • references/troubleshooting.md - Detailed error scenarios and solutions

Load these references when:

  • User needs specific flag or option details
  • Troubleshooting authentication or connection issues
  • Working with advanced features (API, schedules, variables, etc.)

Common Issues Quick Fixes

"command not found: glab" - Install glab or verify PATH

"401 Unauthorized" - Run glab auth login

"404 Project Not Found" - Verify repository name and access permissions

"not a git repository" - Navigate to repo or use -R owner/repo flag

"source branch already has a merge request" - Use glab mr list to find existing MR

For detailed troubleshooting, load references/troubleshooting.md.

Notes

  • glab auto-detects repository context from Git remote
  • Most commands have --web flag to open in browser
  • Use --output=json for scripting and automation
  • Multiple GitLab accounts can be authenticated simultaneously
  • Commands respect Git configuration and current repository context

FAQ

What does the glab skill do?

Expert guidance for using the GitLab CLI (glab) to manage GitLab issues, merge requests, CI/CD pipelines, repositories, and other GitLab operations from the command line. Use this skill when the user needs to interact with GitLab resources or perform GitLab workflows.

How do I install glab?

Run npx skills add https://github.com/henricook/claude-glab-skill --skill glab in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/glab/ (personal) or .claude/skills/glab/ (project).

Which AI agents can use glab?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is glab safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains glab?

It is published by henricook in henricook/claude-glab-skill. It has 1,056 recorded installs.

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