yanacuti1121 Writing Plans
A good plan makes implementation obvious. If someone has to guess, the plan is incomplete.
Trigger phrases: "write a plan", "implementation plan", "plan before coding", "spec out", "break down task", "planning phase"
Plan Template
# Plan: [Feature Name]
## Goal
One sentence: what does this plan deliver?
## Architecture
How does this fit the existing system?
## Constraints
- Language/framework versions
- Libraries to use
- Things NOT to change
---
## Task 1: [Specific Title]
**Objective:** What this accomplishes (1-2 sentences)
**Files:**
- `src/auth/token.ts` — create (new file)
- `src/auth/verify.ts` — modify (add expiry check)
- `tests/auth/token.test.ts` — create
**Implementation:**
```typescript
// src/auth/token.ts
export function createToken(userId: string, expiresIn = '24h'): string {
return sign({ userId }, process.env.JWT_SECRET!, { expiresIn })
}
Commands:
npm test -- --testPathPattern=auth
Expected output:
PASS tests/auth/token.test.ts
✓ creates valid JWT (12ms)
Acceptance criteria:
- Token signed with JWT_SECRET
- Expiry enforced on verify
- Tests pass, no regressions
---
## The 5 Rules
**1. Exact file paths** — not "the auth module" but `src/auth/token.ts`
**2. Copy-pasteable code** — not pseudocode, actual working code
**3. Real commands** — not "run the tests" but `npm test -- --testPathPattern=auth`
**4. Expected output** — what does success look like, exactly?
**5. Atomic tasks** — one task = one person, no file overlap with other tasks
---
## Task Sizing
| Size | Lines changed | Time | Action |
|------|--------------|------|--------|
| Too small | < 5 lines | < 5 min | Merge with adjacent |
| Right | 10–100 lines | 15–60 min | ✓ |
| Too large | > 200 lines | > 2h | Split into 2–3 tasks |
---
## File Conflict Check
Before finalizing — verify no two tasks touch the same file:
Task 1: src/auth/token.ts ✓ Task 2: src/auth/verify.ts ✓ Task 3: src/auth/token.ts ✗ ← conflict with Task 1 → merge or extract
---
## Dependency Map
Task 1 (no deps) ─┐ Task 2 (no deps) ─┤→ Task 4 (needs 1+2) → Task 5 (needs 4) Task 3 (no deps) ─┘
Tasks without deps run in parallel. Always declare dependencies explicitly.
---
## Anti-Fake-Pass
❌ "Update the auth logic" — no file, no code, not actionable ❌ "Add tests" — which tests? what file? what assertions? ❌ One giant task — can't parallelize or review incrementally ❌ Task touching 5+ unrelated files — split it ❌ Expected output is "it should work" — not verifiable ❌ No dependency declaration — parallel agents conflict
## See Also
- `core/rules/golden-principles.md` — Principle 9: plan before code
- `core/skills/kanban-dispatcher/SKILL.md` — execute plans with task board
- `core/agents/spec-planner.md` — planning agent