Inbox `fail` Test Plan Index

Case Files

Case Slug	File	Coverage Note
`fail-marks-thread-failed`	fail-marks-thread-failed.md	marks a claimed thread as `failed` with a result message
`fail-persists-failure-body-and-artifact`	fail-persists-failure-body-and-artifact.md	persists failure body and artifacts for diagnosis
`fail-rejects-non-owner`	fail-rejects-non-owner.md	rejects `fail` from non-owner agent
`fail-rejects-on-terminal-thread`	fail-rejects-on-terminal-thread.md	rejects `fail` on terminal thread states