flake: TestPromoteQueuedWhileRequiresAction

[flake-investigator]

CI Run

• https://github.com/coder/coder/actions/runs/25649576060
• Failed job: test-go-pg (ubuntu-latest) (https://github.com/coder/coder/actions/runs/25649576060/job/75285061676)

Commit

• SHA: cee504e8a0f253a1111712a7d6e8d3d172f1085a
• Author: Rowan Smith

Failure

=== FAIL: coderd/x/chatd TestPromoteQueuedWhileRequiresAction (25.15s)
    chatd_test.go:8900:
        Error:      Received unexpected error:
                    context deadline exceeded
        Messages:   Eventually timed out
    chatd_test.go:8922:
        Error:      "1" is not less than "0"
        Messages:   synthetic tool-result must be published before the promoted user message

Error Analysis

• TestPromoteQueuedWhileRequiresAction timed out waiting for synthetic tool-result publication and then observed the promoted user message before the synthetic tool-result.
• This indicates the queued-message promotion ordering for requires_action did not converge within the test deadline, and the publish order expectation failed.
• No WARNING: DATA RACE, panic/OOM, or crash indicators were found in the logs.

Root Cause Assessment

Likely flaky timing in the queued-message promotion path for requires_action: the synthetic tool-result publish is delayed or missed, causing the eventual timeout and ordering assertion failure.

Assignment Analysis

Intended blame command:

• git blame -L 8780,8935 coderd/x/chatd/chatd_test.go

Proxy via history (available tooling):

• git log --oneline -10 --follow coderd/x/chatd/chatd_test.go
  • Most recent substantive change affecting queued-message promotion tests: 6b0518d fix: state-aware queued message promotion (Mathias Fredriksson)

Assigning to @mafredri as the most recent modifier touching the promotion logic + test area.

Related Issues

• flake: TestPromoteQueuedWhileRequiresActionMixedTools #1523 (MixedTools variant in same area)

Reproduction

go test ./coderd/x/chatd -run TestPromoteQueuedWhileRequiresAction -count=1