Triaging Issues Agent Skill

Triaging Issues

How to work through a GitHub issue (or a batch of them) when someone asks you to triage. The order matters: read, dedupe, label, then decide what the issue needs. Never comment on or change an issue you haven't read in full, including its existing comments and labels.

1. Check for duplicates before anything else

A duplicate comment or label applied to a fresh report saves everyone the most time, but only if you are right.

• Search the repo's existing issues for the same symptom before writing anything. Search closed issues as well as open ones: many "new" bugs were already fixed or already rejected.
• Search by the error message, the API or feature name, and a plain description of the symptom. One search is not enough; reporters describe the same bug in different words.
• Treat it as a duplicate only when the underlying cause matches, not just the surface symptom. Two crashes with the same error text can have different roots.
• When it is a duplicate of an open issue: comment linking the original by number, apply the repo's duplicate label if one exists, and note anything the new report adds (a new environment, a cleaner reproduction) on the original.
• When it duplicates a closed issue that was fixed: point to the fix and the release that carries it, and ask the reporter to confirm on that version before closing.
• When you are not sure, say so in your comment ("this looks related to #42") and leave both open rather than closing on a guess.

2. Label with the repo's vocabulary, never your own

Every repo has its own label taxonomy, and an invented label is worse than none.

• List the repo's existing labels first and work only from that set. Never create a label or apply a name you assume exists.
• Read the label descriptions when they exist; "bug" versus "regression" versus "confirmed" often carry specific local meaning.
• Apply the fewest labels that place the issue: usually one for type (bug, feature, question) and one for area or status when the repo has them.
• Remove a label only when it is clearly wrong for the issue, and say why in a comment when the removal isn't obvious.
• If the repo has almost no labels, don't compensate by inventing structure. Triage with comments instead and mention the gap when you report back.

3. Ask for more info, or close?

Default to asking. Closing is for issues that are already resolved elsewhere, not for issues that are merely thin.

• Ask the reporter for more when the report is plausible but not actionable: no version, no steps, no expected-versus-actual behavior. Apply the repo's needs-repro or needs-more-info style label if it has one.
• Close directly only when the issue is a confirmed duplicate, already fixed in a release the reporter can upgrade to, plainly off topic for the repo, or spam. Always leave a comment saying why, with links.
• An issue that got a request for info and no reply is a candidate to close, but only after real time has passed, and note in the closing comment that it can be reopened with the missing details.
• Never close someone's issue because you personally judge it low value. That call belongs to the maintainers; flag it to the user instead.

4. Asking for reproduction details

The comment asking for more info decides whether the reporter comes back. Keep it short, specific, and warm.

• Open by engaging with what they reported, not with a form letter. One sentence showing you read the issue.
• Ask for the smallest set of things that would make the issue actionable, as a short list: exact version, steps or a minimal repro, expected versus actual behavior, and environment only if it plausibly matters.
• Ask specific questions over generic ones. "Does this happen with X disabled?" gets an answer; "please provide more details" gets silence.
• Close with what happens next: that you or the maintainers will pick it up once the details land.
• See references/repro-request-structure.md for the comment shape and worked examples.

5. Act directly or surface to the user?

Who asked, and what they asked for, sets how much you do on your own.

• When someone explicitly asked you to triage, do the reversible parts directly: comment, apply and correct labels, link duplicates. Then report what you did, issue by issue, with numbers and links.
• Closing an issue is harder to walk back socially, even though it can be reopened. Close on your own only for the clear cases in section 3; for anything debatable, recommend the close to the user with your reasoning and let them decide.
• For a large batch, share your plan in summary before executing ("I'd mark #3 and #7 as duplicates of #1, label #4 and #5 as bugs, and ask #9 for a repro") when the request left room for judgment.
• When the request came by email or from Linear, the requester can't see the repo activity as it happens, so your reply must carry the full outcome: what you changed, what you asked, what you recommend, each with its issue number and link.
• Never take a triage action on an issue nobody asked you about, even if you notice it needs one while working. Mention it to the user instead.