## Stack 1. [#26547](https://github.com/openai/codex/pull/26547) - [1 of 2] Align goal extension with core behavior 2. [#26548](https://github.com/openai/codex/pull/26548) - [2 of 2] Move goal runtime to extension ## Why This PR completes the switch of the goal behavior to the extension-backed runtime and removes the old core goal implementation. ## What Changed - Installs the goal extension for app-server `ThreadManager` sessions. - Routes app-server thread goal `get`, `set`, and `clear` through `GoalService`. - Uses thread-idle lifecycle emission after goal resume and snapshot ordering so the extension can decide whether to continue the goal. - Forwards extension goal updates through a FIFO async app-server notification path so backpressure does not drop them or reorder updates. - Keeps review turns from enabling goal runtime behavior. - Plans extension tools before dynamic tools so built-in goal tool names keep their old precedence when goals are enabled. - Removes the old core goal runtime, core goal tool handlers, and core goal tool specs. - Updates tests that were coupled to the core-owned goal runtime while leaving the legacy `<goal_context>` compatibility path in core for old threads. - Removes the stale cargo-shear ignore now that `codex-goal-extension` is used by the workspace. - Keeps realtime event matching exhaustive after removing the old goal-specific realtime text path. ## Validation - Ran manual `/goal` runs in TUI. Validated time accounting matched wall-clock time and goal lifecycle state transitions.
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This repository is licensed under the Apache-2.0 License.
