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
- Verify authentication before executing commands:
glab auth status - Use
--helpto explore command options:glab <command> --help - Link MRs to issues using "Closes #123" in MR description
- Lint CI config before pushing:
glab ci lint - Check repository context when commands fail:
git remote -v
Common Commands Quick Reference
Merge Requests:
glab mr list --assignee=@me- Your assigned MRsglab mr list --reviewer=@me- MRs for you to reviewglab mr create- Create new MRglab mr checkout <number>- Test MR locallyglab mr approve <number>- Approve MRglab mr merge <number>- Merge approved MR
Issues:
glab issue list- List all issuesglab issue create- Create new issueglab issue close <number>- Close issue
CI/CD:
glab pipeline ci view- Watch pipelineglab ci status- Check statusglab ci lint- Validate .gitlab-ci.ymlglab ci retry- Retry failed pipeline
Repository:
glab repo clone owner/repo- Clone repositoryglab repo view- View repo detailsglab 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
--webflag to open in browser - Use
--output=jsonfor scripting and automation - Multiple GitLab accounts can be authenticated simultaneously
- Commands respect Git configuration and current repository context