GitHub
Use gh for GitHub operations and git for local branches, commits, pulls, and pushes. Use code-reading tools for deep reviews.
Prerequisites
Check authentication before making a GitHub request:
gh auth status
If gh is missing or unauthenticated, explain what is required. Do not invent credentials or expose tokens.
Pull requests
gh pr list --repo owner/repo --json number,title,state,author,url
gh pr view 55 --repo owner/repo --json title,body,author,files,commits,reviews,reviewDecision
gh pr checks 55 --repo owner/repo
gh pr diff 55 --repo owner/repo
gh pr create --repo owner/repo --title "feat: title" --body-file /tmp/pr.md
gh pr merge 55 --repo owner/repo --squash
URLs work directly with commands such as gh pr view. Treat create, comment, review, merge, close, release, and workflow rerun operations as external mutations: perform them only when the user requested that action. Before submitting, show or verify the exact repository and target.
Issues
gh issue list --repo owner/repo --state open --json number,title,labels,url
gh issue view 42 --repo owner/repo --json title,body,comments,labels,state
gh issue create --repo owner/repo --title "Bug: ..." --body-file /tmp/issue.md
gh issue comment 42 --repo owner/repo --body-file /tmp/comment.md
gh issue close 42 --repo owner/repo --comment "Fixed in ..."
CI and runs
gh run list --repo owner/repo --limit 10
gh run view <run-id> --repo owner/repo --json status,conclusion,headSha,url
gh run view <run-id> --repo owner/repo --log-failed
gh run rerun <run-id> --repo owner/repo --failed
API
gh api repos/owner/repo/pulls/55 --jq '.title, .state, .user.login'
gh api repos/owner/repo/labels --jq '.[].name'
gh api --cache 1h repos/owner/repo --jq '{stars: .stargazers_count, forks: .forks_count}'
Prefer --json with --jq for structured output. Use --body-file for comments and bodies containing backticks, shell snippets, environment names, or user-provided text.