Add auto-assign reviewers workflow

[carochacs]

Summary

Adds GitHub Actions workflow to automatically assign reviewers to pull requests.

Changes

• Configures kentaro-m/auto-assign-action@v2.0.2 workflow
• Automatically assigns carochacs as reviewer on all opened/reopened PRs
• Sets PR creator as assignee using addAssignees: author
• Workflow triggers on PR opened/reopened events

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Generated by Claude Code

[pullfrog]

Caution

This PR's workflow fails on every pull request event: kentaro-m/auto-assign-action@v2.0.2 ignores the with: inputs and loads its configuration from .github/auto_assign.yml, which doesn't exist in this repo — the job errors out with a 404 Not Found before assigning anything.

Reviewed changes

• Auto-assign reviewers workflow — new .github/workflows/auto-assign-reviewers.yml runs kentaro-m/auto-assign-action@v2.0.2 on pull_request opened/reopened/ready_for_review, intending to request review from carochacs and assign the PR author.

  ^{｜ Fix all ➔ ｜ Fix 👍s ➔ ｜ View workflow run ｜ Using Big Pickle (free) ｜ 𝕏}

[pullfrog]

These four inputs are ignored: kentaro-m/auto-assign-action@v2.0.2 declares only repo-token and configuration-path in its action.yml, and its run.ts loads configuration exclusively from .github/auto_assign.yml. That file doesn't exist in this repo, so every PR run fails with a 404 Not Found before any assignment happens.

[pullfrog]

Requesting carochacs as a reviewer will never take effect: the action filters the PR author out of the reviewer candidate list (chooseUsers in src/utils.ts), and GitHub rejects review requests to the author outright (see kentaro-m/auto-assign-action#11). With carochacs authoring every PR here, this reviewer assignment is inert — the workflow will only ever assign the author as assignee.

[pullfrog]

Important

The config fix is correct — .github/auto_assign.yml now exists and the invalid with: block is gone, resolving the previously-blocking config-load failure. One gap remains: the addAssignees: author step calls POST /issues/{n}/assignees, which GitHub's endpoint→permission mapping places under the issues permission, not pull-requests. With only pull-requests: write granted, that call is rejected; since the action catches and logs the error as a warning, the job still passes while silently never assigning the author.

Reviewed changes (delta since prior review 773e4b0)

• Add config file, drop invalid inputs — new .github/auto_assign.yml (addReviewers: true, addAssignees: author, reviewers: [carochacs], numberOfReviewers: 0) and removal of the four undeclared with: keys from .github/workflows/auto-assign-reviewers.yml.

  ^{｜ Fix all ➔ ｜ Fix 👍s ➔ ｜ View workflow run ｜ Using Big Pickle (free) ｜ 𝕏}

[pullfrog]

addAssignees: author maps to POST /issues/{issue_number}/assignees, which GitHub's endpoint→permission list assigns to the issues permission rather than pull-requests. This job grants only pull-requests: write, so the assignee call is rejected with Resource not accessible by integration — the action logs it as a warning and the job still passes, so the author-assignment half silently never happens. Add issues: write to the job permissions: block if the assignee behavior is wanted.

[pullfrog]

ℹ️ The permissions fix is complete and correct — contents: read (the action fetches the config file via the contents API at the head ref), issues: write (assignee endpoint), and pull-requests: write (reviewer endpoint) are exactly the three scopes kentaro-m/auto-assign-action@v2.0.2 needs. No new issues in this commit.

Reviewed changes (delta since prior review 619194a)

• Grant full permission set — job permissions: now adds contents: read and issues: write alongside pull-requests: write.

  ^{｜ Fix it ➔ ｜ View workflow run ｜ Using Big Pickle (free) ｜ 𝕏}

[pullfrog]

Review 4928149941 contains 0 review threads — the review body is a clean bill for the permissions fix (contents: read, issues: write, pull-requests: write), stating "No new issues in this commit." Verified the PR branch is clean at the reviewed commit 3ed3dbd; no code changes were required, so nothing was committed or pushed.

Task list (1/7 completed)

• Checkout PR branch
• Fetch review comments (review 4928149941)
• Verify and address each comment
• Test changes and review diff
• Commit and push changes
• Reply and resolve review threads
• Report progress

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