Overlap Check

Check for existing issues and PRs before creating new ones. Fires automatically when agent intends to file an issue, open a PR, or comment on a thread. Searches the target repo for duplicates and shows matches so the agent can decide whether to proceed or contribute to an existing thread instead.

Before creating a new issue or PR, search the target repo for existing threads that cover the same topic.

When This Fires

• You are about to run gh issue create
• You are about to run gh pr create
• The user asks you to "file an issue", "open a PR", "report this bug", or "submit a fix"
• You are drafting a comment on an issue or PR you haven't read yet

What to Do

1. Identify the target repo and your topic

Figure out which repo you're targeting. If you're inside a cloned repo, run:

bash

gh repo view --json nameWithOwner -q .nameWithOwner

Summarize what your issue or PR is about in a few keywords.

2. Search for existing threads

Run both searches. Drop filler words (the, a, is, for, with, this, that, when, not, but, and, from) from your keywords.

bash

gh search issues --repo OWNER/REPO "KEYWORDS" --limit 5 --json number,title,state,comments
gh search prs --repo OWNER/REPO "KEYWORDS" --limit 5 --json number,title,state,comments

3. Evaluate matches

Read the titles and comment counts. If any look related:

• Open the thread: gh issue view NUMBER --repo OWNER/REPO or gh pr view NUMBER
• Read enough to understand whether your topic is already covered
• Check if the thread is active, stale, or closed

4. Decide

Situation	Action
Existing open thread covers your exact topic	Comment there instead of creating a new one
Existing closed thread solved it	Don't reopen — link to it if relevant
Existing thread is related but different	Proceed with new issue/PR, reference the related thread
No matches	Proceed normally

5. If you find duplicates, tell the user

Show what you found before proceeding:

text

Found existing threads that may cover this:
  #13738 — WSL2 clipboard paste broken (16 comments, open)
  #14635 — Paste not working in WSL (3 comments, open)

Should I comment on an existing thread or create a new one?

What NOT to Do

• Don't skip this check because you're confident your topic is new
• Don't create a new issue just because existing ones use slightly different wording
• Don't run expensive analysis — two gh search calls is enough
• Don't block the user — if they insist on creating a new thread after seeing duplicates, do it