- Remove agent delegation (spawn_agent/wait/send_input/close_agent), all phases serial inline
- Replace parallel agent exploration with serial ccw cli calls (gemini/claude)
- Add search verification after each CLI exploration (ACE/Grep/Glob)
- Change output from plan.json/executionContext to tasks.jsonl (unified JSONL)
- Output format now compatible with collaborative-plan-with-file
- Replace custom execution engine with unified-execute-with-file delegation
- Copy full execution spec inline (no external references)
- Use $ prefix for codex skill invocations