ci: cut runner queue depth — remove issue_comment trigger and arm64 PR builds

[badMade]

Summary

The 20-slot runner pool was saturated (364 queued runs) causing all PR checks to stall in "queued" state indefinitely. Two workflow changes eliminate the two biggest contributors:

• auto-merge.yml: Remove the issue_comment trigger. Each comment on any PR fired a full Auto-merge workflow run. A single busy PR with 60 comments generated 60 queued runs by itself. Review intent is already captured by the pull_request_review trigger — nothing is lost.

• docker-publish.yml: Skip build-arm64 on pull_request events. The arm64 job never pushes anything on PRs (all push/upload steps are already gated to upstream main/release), so it only occupied a 45-minute arm runner slot without producing a useful artifact. The amd64 smoke test is sufficient for PR validation.

Expected impact

• Eliminates the largest source of queue flooding (issue_comment → Auto-merge fan-out across all active PRs)
• Halves the Docker runner-slot usage per PR (1 slot instead of 2 per PR event)
• Both merge and move-latest jobs in docker-publish are unaffected — they only run on push/release events where build-arm64 still runs normally

Test plan

• Verify Auto-merge still fires on pull_request_review events
• Verify Auto-merge still fires on workflow_run completions
• Verify build-amd64 + smoke test still run on PRs
• Verify build-arm64, merge, and move-latest still run on pushes to main
• Confirm runner queue depth stays manageable after merge

https://claude.ai/code/session_016mjwUL1zrcJrveLbFu2ngx

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Generated by Claude Code

[gemini-code-assist]

Note

Gemini is unable to generate a review for this pull request due to the file types involved not being currently supported.

[Copilot]

Pull request overview

This PR reduces GitHub Actions runner queue pressure by eliminating high-fanout workflow triggers and avoiding long-running ARM builds on pull requests, while keeping publish behavior intact for main pushes and releases.

Changes:

• Remove the issue_comment trigger from auto-merge.yml and delete the corresponding event-handling branch in the script.
• Skip the build-arm64 job on pull_request events in docker-publish.yml to avoid consuming ARM runner capacity for non-publishing PR runs.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
.github/workflows/docker-publish.yml	Adds a job-level condition to skip ARM64 builds on PR events to reduce runner usage.
.github/workflows/auto-merge.yml	Removes issue_comment as a trigger and updates workflow gating/script logic accordingly to prevent comment-driven run fan-out.

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[github-actions]

🔎 Lint report: claude/hopeful-newton-eG6vr vs origin/main

ruff

Total: 0 on HEAD, 0 on base (➖ 0)

🆕 New issues: none

✅ Fixed issues: none

Unchanged: 0 pre-existing issues carried over.

ty (type checker)

Total: 8253 on HEAD, 8253 on base (➖ 0)

🆕 New issues (3):

Rule	Count
invalid-argument-type	3

First entries

run_agent.py:7317: [invalid-argument-type] invalid-argument-type: Argument to function `build_anthropic_client` is incorrect: Expected `str`, found `str | dict[Unknown, Unknown] | Any | ... omitted 3 union elements`
run_agent.py:13573: [invalid-argument-type] invalid-argument-type: Argument to function `_is_oauth_token` is incorrect: Expected `str`, found `str | dict[Unknown, Unknown] | Any | ... omitted 3 union elements`
run_agent.py:13576: [invalid-argument-type] invalid-argument-type: Argument to function `len` is incorrect: Expected `Sized`, found `(str & ~AlwaysFalsy) | (dict[Unknown, Unknown] & ~AlwaysFalsy) | (Any & ~AlwaysFalsy) | ... omitted 3 union elements`

✅ Fixed issues (3):

Rule	Count
invalid-argument-type	3

First entries

run_agent.py:13576: [invalid-argument-type] invalid-argument-type: Argument to function `len` is incorrect: Expected `Sized`, found `(str & ~AlwaysFalsy) | (dict[Unknown | str, Unknown | str | dict[str, str]] & ~AlwaysFalsy) | (Any & ~AlwaysFalsy) | ... omitted 3 union elements`
run_agent.py:7317: [invalid-argument-type] invalid-argument-type: Argument to function `build_anthropic_client` is incorrect: Expected `str`, found `str | dict[Unknown | str, Unknown | str | dict[str, str]] | Any | ... omitted 3 union elements`
run_agent.py:13573: [invalid-argument-type] invalid-argument-type: Argument to function `_is_oauth_token` is incorrect: Expected `str`, found `str | dict[Unknown | str, Unknown | str | dict[str, str]] | Any | ... omitted 3 union elements`

Unchanged: 4354 pre-existing issues carried over.

Diagnostics are surfaced as warnings — this check never fails the build.

[github-actions]

Auto-merge: merge failed

All checks passed and the reviewed label is present, but the automatic squash merge failed:

refusing to allow a GitHub App to create or update workflow .github/workflows/docker-publish.yml without workflows permission - https://docs.github.com/rest/pulls/pulls#merge-a-pull-request

Please merge manually or investigate the error.

View workflow run

[github-actions]

Auto-merge: checks failing

The following checks did not pass:

• test (cancelled)

Please fix the failing checks before this PR can be merged.

View workflow run