/supergraph:plan

Scan codebase, map blast radius, create machine-readable plan.

Announce: "📐 /supergraph:plan — scanning codebase, creating plan..."

Quick Gate

< 20 lines, ≤2 files, no hub/bridge, complexity <10 → skip to /supergraph:tdd.

Steps

0. Read CONTEXT.md (if exists):

cat CONTEXT.md 2>/dev/null | head -60

Use domain vocabulary from CONTEXT.md in all plan task descriptions — never use raw file/class names where a domain term exists.

1. Read the codebase (MANDATORY before planning):

• Read config file → language, framework, versions
• Read 2-3 source files near target area → naming, imports, error handling
• Read 1-2 test files → test structure, assertion style

2. Ensure graph: Reuse /supergraph:scan context. If not done → run scan first. Requires CBM_PROJECT + healthy index_status; if stale/degraded → index_repository (absolute path).

3. Graph analysis (parallel where independent): See references/codebase-memory-contract.md#Lifecycle. Run detect_changes, search_graph, trace_path (inbound/outbound/data-flow), and get_architecture (overview/clusters/boundaries/hotspots) in parallel (no dependencies). After get_graph_schema, run recipes hubs, bridges, test-gaps, cross-boundary (requires schema). Derive risk from evidence; preserve escalation: >20 files STOP, hub/bridge needs approval. Respect scan: TTL — skip index_repository if fresh per scan logic.

3b. Serena (optional): See serena/SKILL.md:Setup. If scan not run, call initial_instructions first, then find_referencing_symbols/find_implementations for key symbols. Cross-check with graph blast radius; persist callers via write_memory only if >10 files or hub/bridge. Skip if Serena unavailable.

4. Discuss approach (MANDATORY, user's language): Present findings 1-3 (naming/patterns, graph risk, task summaries). Get approval before step 5; revise if needed.

5. Create plan tasks — each task 2-5 min. Use exact machine-readable format:

## Task N: [Short description]
Wave: 1
Status: pending
Risk: low|medium|high
Dependencies: none | Task 1, Task 2
Model: flash|inherit|pro

Files:
- Create: path/to/new-file.ext
- Modify: path/to/existing-file.ext
- Test: path/to/test-file.ext

Blast radius:
- path/to/affected-file.ext

Acceptance:
- [observable behavior/result]
- [test/assertion that proves completion]

TDD:
- Behavior: single externally visible behavior
- Test file: exact test path
- Test name: behavior-focused test name
- 🔴 RED command: $FOCUSED_TEST_CMD
- Expected 🔴 RED failure: missing behavior, not setup/import/syntax error
- Minimal 🟢 GREEN change: smallest implementation idea
- Refactor candidates: optional, only after 🟢 GREEN
- Mocking: none | why unavoidable

Steps:
1. 🔴 RED: write exact failing test
   Command: $TEST_CMD
   Expected: FAIL
2. 🟢 GREEN: write minimal implementation
   Command: $TEST_CMD
   Expected: PASS
3. REFACTOR: safe cleanup or none
4. VERIFY:
   - $TEST_CMD
   - $LINT_CMD (skip if none)

Checkpoint:
- Files: path/to/test-file.ext path/to/source-file.ext
- Commit: type: short description

Task status values: pending, in_progress, completed, stuck (managed by executor)

Wave Assignment Rules (DAG Parallelism):

• Wave 1: Foundational setup, data schemas, interface contracts, base types (Dependencies: none).
• Wave 2: Independent business features, service implementations, API endpoints (depend only on Wave 1). Executed in parallel by concurrent subagents.
• Wave 3: UI components, glue code, feature integration (depend on Wave 2).
• Wave 4: E2E / integration tests, migration scripts, documentation, cleanup.
• Model Tiering Hint:
  • Model: flash for low-risk boilerplate, test fixtures, types, docs (3x faster, 5x cheaper).
  • Model: inherit for standard feature logic and tests.
  • Model: pro for high-risk core algorithms, architecture refactoring, complex multi-file coupling.

6. Validate: All tasks have ## Task N: + fields (Wave,Status,Risk,Dependencies,Files,Acceptance,TDD,Steps,Checkpoint), no TBD/TODO, real commands from .supergraph-env, no indentation under fields, no extra blank lines.

7. Save plan: docs/supergraph/plans/YYYY-MM-DD-<slug>.md

8. Analysis Gate (if analyze used): Verify plan aligns with ## Analysis Decisions; if skipped → WARN "No analyze step".

9. Environment Context (MANDATORY): Include Language, TEST/LINT/FORMAT/BUILD cmds from .supergraph-env, Branch, commit style, codebase conventions, Graph Context (blast radius/hubs/bridges/communities).

10. Auto-review: Dispatch plan-reviewer; fix issues; require Approved before execute. 11. User Gate (MANDATORY): Present summary (plan path, Tasks N, blast radius, hubs, Review Approved); ask [yes/modify/reject] in user's language. 12. Report: ✅ /supergraph:plan complete — Plan: ... Tasks: N | Blast: M | Review: Approved | User: yes/modify/rejected | Next: execute/tdd

Rules

• Codebase first, plan second — never plan blindly
• Environment Context mandatory — executor depends on it
• Exact file paths, commands, code — no vagueness
• Task headings stay ## Task N: for executor parsing
• No placeholders, no "TBD", no "similar to Task X"
• Never execute code — only create plans