glab-cli-skill

Guidance for using the GitLab CLI (glab) from the terminal for merge requests, issues, CI/CD pipelines and jobs, repository targeting and inspection, clone and fork workflows, self-hosted GitLab instances, and direct GitLab REST or GraphQL API calls.

GitLab CLI (glab) Skill

Use glab when the user wants to operate on GitLab from the terminal. These instructions are verified against glab 1.90.0.

This hot path is intentionally narrow: merge requests, issues, CI/CD, repo targeting, repo view/clone/fork, and glab api. Broader project administration should only be documented through a dedicated reference file.

When to Use

Invoke this skill when the user needs to:

• Create, review, update, merge, or inspect merge requests
• Create, inspect, or update issues
• Check, run, retry, cancel, or inspect CI/CD pipelines and jobs
• Target a repository explicitly, or view, clone, or fork it
• Work with self-hosted GitLab instances
• Make direct GitLab REST or GraphQL API calls with glab api

Preflight

Run these checks before doing real work:

bash

glab --version
glab auth status
git remote -v

If not inside a Git repository, do not guess context. Use one of these patterns instead:

bash

glab mr list -R group/project
glab issue list -R group/project
glab repo view group/project
glab repo view https://gitlab.example.org/group/project.git

For self-hosted GitLab, set the host explicitly when needed:

bash

glab auth login --hostname gitlab.example.org
GITLAB_HOST=gitlab.example.org glab repo view group/project
glab api --hostname gitlab.example.org projects/:id

Execution Policy

• Prefer read-only commands first: list, view, status, trace.
• Prefer structured output when the user wants filtering or automation:
  • --output json for mr, ci, and repo commands
  • -O json for issue list
  • --output ndjson for large glab api --paginate responses piped to jq
• Before remote mutations, confirm the repository, target object, and branch. This matters for mr create, mr merge, mr close, issue close, ci run, ci retry, ci cancel, ci delete, and repo fork commands.
• If glab auth status shows missing or invalid credentials, stop and ask the user to authenticate instead of retrying failing API calls.
• Use glab <command> --help before guessing flags. CLI behavior changes across releases.
• For glab api, pagination belongs in the endpoint query string. Example:

bash

glab api "projects/:id/jobs?per_page=100" --paginate --output ndjson

Common Workflows

Merge Requests

bash

glab mr list --reviewer=@me --output json
glab mr checkout 123
glab mr view 123 --comments
glab mr create -t "Add feature" -d "Implements X" --reviewer alice,bob -l feature
glab mr create --related-issue 123 --fill --yes
glab mr update 123 --ready
glab mr note 123 -m "Please add tests"
glab mr merge 123 --auto-merge

glab mr create --fill sets push to true. Confirm git status, the current branch, and the target remote before using --fill --yes.

Issues

bash

glab issue list --assignee=@me -O json
glab issue view 456 --comments
glab issue create -t "Bug in login" -l bug -d "Steps to reproduce"
glab issue update 456 --label "bug,confirmed"
glab issue close 456

CI/CD

bash

glab ci list -s failed -F json
glab ci status --live
glab pipeline ci view -b main
glab ci trace lint
glab ci run -b main --variables DEPLOY_ENV:staging
glab ci retry lint
glab ci cancel pipeline 123

References

Load only the smallest file that matches the task:

• references/quick-reference.md for a short cheat sheet
• references/auth.md for authentication, repo context, self-hosted hosts, and 401/403/404 errors
• references/merge-requests.md for MR workflows, comments, merge strategies, and MR-specific failures
• references/issues.md for issue creation, editing, linking, and issue-specific failures
• references/ci.md for pipeline and job inspection, reruns, cancelation, variables, and CI failures
• references/api.md for glab api, pagination, GraphQL, and automation patterns

Load a reference only when the task needs deeper flags, examples, or troubleshooting than this file provides.