On Windows CI, the bash tool's migration name claim (BackgroundProcessManager.claimMigrationProcessId, awaited in tools/bash.ts before the exit check) sometimes takes more than 2 s. That was the root cause of the #5593 flake. #5595 made the tests independent of this latency. A name claim should normally take milliseconds, and when the user presses "send to background", a slow claim is visible as lag. It also turns commands that finish during the claim into normal completions.
Next step: measure the claim on Windows (spawn-lock acquisition, record-directory probes) and find what takes seconds. This is a performance question, not a correctness bug.
Found by the final check of #5595.
Generated with xum • Model: anthropic:claude-opus-5-5 • Thinking: high • Cost: $47.22
On Windows CI, the bash tool's migration name claim (
BackgroundProcessManager.claimMigrationProcessId, awaited intools/bash.tsbefore the exit check) sometimes takes more than 2 s. That was the root cause of the #5593 flake. #5595 made the tests independent of this latency. A name claim should normally take milliseconds, and when the user presses "send to background", a slow claim is visible as lag. It also turns commands that finish during the claim into normal completions.Next step: measure the claim on Windows (spawn-lock acquisition, record-directory probes) and find what takes seconds. This is a performance question, not a correctness bug.
Found by the final check of #5595.
Generated with
xum• Model:anthropic:claude-opus-5-5• Thinking:high• Cost:$47.22