remove the current solution, add skills

.cursor/commands/implement-wave.md

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+# Implement Next Wave
+
+Identify the next batch of independent features and implement them in parallel using the implementer subagent.
+
+## Prerequisites
+- Project scaffolded (`/implement-initial` completed)
+- `_docs/02_tasks/<topic>/SUMMARY.md` exists
+- `_docs/02_tasks/<topic>/cross_dependencies.md` exists
+
+## Wave Sizing
+- One wave = one phase from SUMMARY.md (features whose dependencies are all satisfied)
+- Max 4 subagents run concurrently; features in the same component run sequentially
+- If a phase has more than 8 features or more than 20 complexity points, suggest splitting into smaller waves and let the user cherry-pick which features to include
+
+## Task
+
+1. **Read the implementation plan**
+   - Read `SUMMARY.md` for the phased implementation order
+   - Read `cross_dependencies.md` for the dependency graph
+
+2. **Detect current progress**
+   - Analyze the codebase to determine which features are already implemented
+   - Match implemented code against feature specs in `_docs/02_tasks/<topic>/`
+   - Identify the next incomplete wave/phase from the implementation order
+
+3. **Present the wave**
+   - List all features in this wave with their complexity points
+   - Show which component each feature belongs to
+   - Confirm total features and estimated complexity
+   - If the phase exceeds 8 features or 20 complexity points, recommend splitting and let user select a subset
+   - **BLOCKING**: Do NOT proceed until user confirms
+
+4. **Launch parallel implementation**
+   - For each feature in the wave, launch an `implementer` subagent in background
+   - Each subagent receives the path to its feature spec file
+   - Features within different components can run in parallel
+   - Features within the same component should run sequentially to avoid file conflicts
+
+5. **Monitor and report**
+   - Wait for all subagents to complete
+   - Collect results from each: what was implemented, test results, any issues
+   - Run the full test suite
+   - Report summary:
+     - Features completed successfully
+     - Features that failed or need manual attention
+     - Test results (passed/failed/skipped)
+     - Any mocks created for future-wave dependencies
+
+6. **Post-wave actions**
+   - Suggest: `git add . && git commit` with a wave-level commit message
+   - If all features passed: "Ready for next wave. Run `/implement-wave` again."
+   - If some failed: "Fix the failing features before proceeding to the next wave."
+
+## Safety Rules
+- Never launch features whose dependencies are not yet implemented
+- Features within the same component run sequentially, not in parallel
+- If a subagent fails, do NOT retry automatically — report and let user decide
+- Always run tests after the wave completes, before suggesting commit
+
+## Notes
+- Ask questions if the implementation order is ambiguous
+- If SUMMARY.md or cross_dependencies.md is missing, stop and inform the user to run the decompose skill first