create-implementation-plan

# Create Implementation Plan Creates implementation plans using the official project template with session hand-off support, TDD workflow, and progress tracking. ## Quick Start 1. Extract issue ID from branch: `git branch --show-current` (format: `XXX-XXXX`) 2. Read Jira issue for context and acceptance criteria 3. Create plan file: `${issueID}_implementation_plan.md` (root directory) 4. Create `tests.json` for test scenario tracking 5. Create mermaid diagrams in `docs/diagrams/` 6. **STOP and wait for user confirmation** ## Template Location Use template from: `docs/templates/IMPLEMENTATION_PLAN_TEMPLATE.md` Replace all `{{TICKET_ID}}` and `{{TICKET_TITLE}}` placeholders with actual values. ## Files to Create | File | Location | Purpose | | ------------------- | ----------------------------------- | ------------------------------------ | | Implementation plan | `${issueID}_implementation_plan.md` | Main plan document | | Test tracking | `tests.json` | Track test scenarios across sessions | | Flow diagrams | `docs/diagrams/${issueID}_*.mmd` | Mermaid source files | **All these files are gitignored - NEVER commit them.** ## Key Sections to Complete ### 1. SESSION RESUME (Critical for hand-off) - Update Quick Context with ticket info and branch - Fill Current State table - List Next Actions - Update Current Working Files table ### 2. Phase 1: Planning - **1.1 Requirements Analysis**: List changes, error handling, files to modify/create - **1.2 Schema/Architecture Design**: Add schemas, data structures - **1.3 Flow Diagrams**: Create mermaid files, generate PNGs ### 3. Phase 2: Implementation (Outside-in TDD) - Use testing skill - **CRITICAL: use outside-in TDD** - Enforce strict test order: 1. Smoke tests (E2E behavior) 2. Integration tests (cross operating system behaviour, integrative behaviour) 3. Unit tests - Break into checkpoint steps (completable in one session) - Each step: tasks, tests to write FIRST, commit message - Reference test IDs from `tests.json` - Add a plan self-check: integration tests must appear before unit tests ### 4. Phase 3: Review - Code review prep checklist - Documentation updates - Pre-commit checks ### 5. Progress Tracking - Update status table at end of each session - Add entry to Session Log ## tests.json Structure ```json { "ticket": "IDE-XXXX", "description": "Ticket title", "lastUpdated": "YYYY-MM-DD", "lastSession": { "date": "YYYY-MM-DD", "sessionNumber": 1, "completedSteps": [], "currentStep": "1.1 Requirements Analysis", "nextStep": "1.2 Schema Design" }, "testSuites": { "unit": {}, "integration": { "scenarios": [] }, "regression": { "scenarios": [] } } } ``` ## Diagram Creation 1. Create: `docs/diagrams/${issueID}_description.mmd` 3. Reference PNG in plan: `` ## Critical Rules - **NEVER commit** implementation plan, tests.json, or plan diagrams - **WAIT for confirmation** after creating the plan before implementing - **Use Outside-in TDD** - write tests FIRST - **Update progress** at end of EVERY session (hand-off support) - **Update Jira** with progress comments - **Sync** plan changes to Jira ticket description and Confluence (if applicable) ## Workflow Integration This skill is called by `implementation` when no plan exists. After creating the plan: 1. Present plan summary to user 2. Wait for confirmation 3. `implementation` continues with Phase 2 (Implementation)