Sequentially execute implementation waves defined in `PLAN.md`, enforcing TDD (Test-Driven Development), atomic commits, and full-suite regression checks. @.opencode/references/hm-coordination-contracts.md @.opencode/references/hm-dual-signal-completion.md Outputs generated by this workflow are consumed by: 1. **hm-verify**: Uses the modified code, run logs, and completed tasks to verify phase deliverables. 2. **hm-gate**: Evaluates the codebase state and test results during quality gate audits. **CRITICAL: Atomic focus.** Focus execution strictly on the active task. Do not make unrelated file modifications or bundle multiple tasks into a single commit. Load phase details. Read `PLAN.md` and check active wave status. Verify that the previous wave (if any) is fully complete. Process tasks in the current wave sequentially. For each task, execute the TDD loop: 1. **Red**: Write/update tests demonstrating the expected behavior and run them to confirm they fail. 2. **Green**: Write the minimal code changes necessary to make the tests pass. 3. **Refactor**: Clean up implementation details while keeping tests green. Verify the task meets its defined completion criteria. Run the specific automated tests for the task's files. Stage only the files modified for the current task. Commit the changes using a meaningful message: ```bash git commit -m "feat(phase-{{phase}}): implement task {{task_name}} - {{summary}}" ``` Do not bundle multiple tasks into a single commit. Every commit must pass typechecks and tests. Once all tasks in a wave are complete, run the full project test suite (`npm run test`) to verify that no regressions were introduced. If regressions occur, roll back or troubleshoot immediately using `hm-debug`. Record wave completion. Advance to the next wave in the plan. Repeat the loop until all waves are complete. Generate `${phase_dir}/${padded_phase}-SUMMARY.md` documenting what was shipped, list of modified files, and test outputs. Commit `SUMMARY.md` atomically, update the session tracker state in `.planning/STATE.md`, and notify that execution is complete. - All plan waves executed in correct dependency order. - TDD cycle strictly followed. - Atomic commits created for every single task. - Full test suite passes without regressions. - `SUMMARY.md` created and committed.