- council_finalize: batch extract, archive, and return council results
- council_read: secure file reader for archived council responses
- background_wait: stripped to metadata-only, returns completed_tasks array
- Removed all council-specific logic from background_wait
- 28/28 tests passing across all changed files
- Check context.abort in background-wait and background-output polling loops
- Remove legacy kimi-for-coding/k2p5 from athena fallback chain
- Pass ctx.directory from tool-registry to createSkillTool instead of process.cwd()
New tool that takes multiple task IDs and blocks until ANY one completes (Promise.race pattern). Returns the completed task's result plus a progress summary with remaining IDs. Enables Athena to show incremental council progress without polling.
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>