2026-10-13-grok-build-parallel-tools-editing-the-same-file-are-serialized-while-unrelated-calls-remain-concurren

Parallel tools editing the same file are serialized while unrelated calls remain concurrent. The vendor documents sequential execution for parallel tools editing the same file, while unrelated tools stay concurrent. This adds file-conflict coordination without making every operation serial.

Channel: tagged-release (1.0.44 documented change available by stable 1.0.52). Half: capability. Date: 2026-09-28 (1.0.44 note).

Operator consequence: Try same-session parallel tool workflows on stable 1.0.52. Keep worktree/process isolation where independently running agents share state; the note does not promise an inter-process lock or cross-harness ownership. Measure conflicts and review cost separately from raw parallelism.

Receipt

• https://storage.googleapis.com/grok-build-public-artifacts/cli/changelogs/1.0.44.external.md?generation=1790656650477799