Co-authored-by: Copilot Autofix powered by AI <175728472+Copilot@users.noreply.github.com>
3.3 KiB
3.3 KiB
| name | description |
|---|---|
| gh | Patterns for invoking the GitHub CLI (gh) from agents. Covers structured output, pagination, repo targeting, search vs list, gh api fallback. |
Reference
Interactivity policy
gh already does the right thing in non-TTY contexts: it skips the pager,
strips ANSI color, and errors out fast with a helpful message instead of
prompting (e.g. must provide --title and --body when not running interactively).
You don't need to defensively set GH_PAGER or pass --no-pager (no such
flag exists).
Parsing JSON
Human output from gh is column-formatted. If you want structured data:
- Add
--json field1,field2,...for structured output. - Run a command with
--jsonand no field list to print the full set of available fields, then pick what you need. - Use
--jq '<expr>'for filtering without piping through a separatejq. - Use
--template '<go-template>'(alongside--json) when you want shaped text output. Note that--template/-Tcollides with a body-template flag on a few commands (e.g.gh pr create -T,gh issue create -T); always check--helpbefore assuming which one you're hitting.
Pagination and silent truncation
List commands cap results.
gh issue list,gh pr list,gh search ...: pass-L N(--limit N). The default is usually 30.gh issue list/gh pr listdo not expose aggregate totals liketotalCountvia--json. If you need a true total, usegh api graphqlto querytotalCount; otherwise, treat-Las the cap for the current call.- For raw API calls use
gh api --paginate <path>. Combine with--jqand (optionally)--slurpto assemble one array.
Repo targeting
gh infers the repo from the cwd's git remotes.
Pass --repo OWNER/REPO (-R) to override the resolved CWD repo.
Search vs list
gh search issues|prs|code|repos|commits|usersuses GitHub's search index and accepts the full search syntax (is:open,author:,label:,repo:owner/name,in:title, ...). Pass the entire query as one quoted string, the same way you would for--search:gh search issues "is:open author:foo repo:cli/cli". Prefer it for anything cross-repo or filtered by author/label.gh issue list --search "..."andgh pr list --search "..."accept the same syntax but are scoped to one repo.
Fall back to gh api for anything --json doesn't expose
Sometimes useful data isn't on the typed commands. Examples:
- Review-thread comments on a PR:
gh api repos/{owner}/{repo}/pulls/{n}/comments(the--commentsflag ongh pr viewshows issue-level comments only). - Arbitrary GraphQL:
gh api graphql -f query='...' -F var=value. - REST shortcuts:
gh api repos/{owner}/{repo}/...- note the{owner}/{repo}placeholder is filled in for you when run from a repo with detected remotes; pass them literally if you want determinism.
Authentication
gh auth statusprints the active host(s), user, and which env var (if any) is being honored.gh auth status --jsonis supported.
Other notes
gh pr checkout <n>switches branches. Usegh pr diff <n>orgh pr view <n>if you only need to read.NO_COLOR,CLICOLOR_FORCE, andGH_FORCE_TTYare honored. SetGH_FORCE_TTY=1if you want TTY-style output (colors, tables, the pager, interactivity) inside an agent harness; leave it unset unless needed.