Brainstorm

Brainstorm

Scan, analyze, and propose — without asking what to focus on.

Existing Tasks

!node -e "try{const p=require('./prd.json');const sp=p.sprints?p.sprints[p.sprints.length-1]:p;Object.entries(sp.stories||p.stories||{}).forEach(([k,v])=>console.log(k,v.passes===true?'done':v.passes==='deferred'?'deferred':'pending',v.title))}catch(e){}"

Usage

Phase 1: Architecture Scan (Parallel)

Launch 4 scans simultaneously using Task tool with run_in_background: true.

These scans look for real issues, not linter warnings:

// Scan 1: Dead code — unused exports, unreferenced components, orphan routes
Task({ subagent_type: "Explore", run_in_background: true,
  prompt: `Find dead code in [PROJECT_PATH]/src:
  1. Components in src/components/ or src/app/ not imported anywhere else
  2. Exported functions/constants not imported by any other file
  3. Route segments (page.tsx) that import deleted/missing components
  Cross-reference: for each export, grep for its name across src/. Report only confirmed unused.` })

// Scan 2: Console statements + error handling gaps
Task({ subagent_type: "Explore", run_in_background: true,
  prompt: `In [PROJECT_PATH]/src (skip test/spec files):
  1. Count console.log/warn/error statements — report top 5 files by count
  2. Find empty catch blocks (catch that do nothing or just console.log)
  3. Find API calls (fetch, axios, supabase.from) without error handling
  Report: count per category, top offenders with file:line.` })

// Scan 3: Bundle + complexity — what actually costs users
Task({ subagent_type: "Explore", run_in_background: true,
  prompt: `In [PROJECT_PATH]/src:
  1. Files over 300 lines — report file path and line count
  2. For each large file: is it a single component that could be split? Or cohesive logic that should stay together? Check if it has multiple exported components or clearly separable sections.
  3. Check for client-side data fetching in page.tsx/layout.tsx that could be server-side (useEffect + fetch patterns in 'use client' pages)
  Report only genuinely splittable files, not cohesive ones.` })

// Scan 4: Dependency audit
Task({ subagent_type: "Explore", run_in_background: true,
  prompt: `In [PROJECT_PATH]:
  1. Read package.json dependencies. For each dependency, grep src/ to check if it's actually imported. Report unused deps.
  2. Find hardcoded colors (text-white, bg-black, #hex, rgb) — skip node_modules, skip test files, skip shadcn/ui component defaults
  3. Check for 'any' type usage in .ts/.tsx files
  Report: unused deps list, hardcoded color count + top files, any type count.` })

Phase 2: Feature Ideation

After scans complete, read project context:

• CLAUDE.md — goals, roadmap, known issues
• README.md — what the app does
• package.json — name, description

Then walk the user journey to find gaps:

1. Landing/onboarding — what's the first experience?
2. Core workflow — what does the user do most? Where's the friction?
3. Output/sharing — can users share results? Export? Collaborate?
4. Retention — what brings users back?

Use WebSearch to check 2-3 competitors: "what features do [similar apps] offer?"

Propose only features that pass these filters:

• Feasible now — don't propose features for placeholder/coming-soon pages
• Not already done — verify the feature doesn't already exist before proposing
• Specific — "Add Cmd+K search modal" not "Improve UX"
• Proportional — don't propose 6 stories for a clean codebase. 0-3 is fine.

Phase 3: Present Findings

Present a findings table. Do not auto-create stories.

Validate every finding before including it:

• Claiming "0 tests"? Check test directories, playwright config, jest config first.
• Claiming a file should be split? Check if it has multiple exported components or is actually cohesive.
• Claiming a feature is missing? Grep for it first — it might already exist.

Brainstorm Complete
===================
Scanned [N] files in [T] seconds.

| # | Category | Finding | Priority |
|---|----------|---------|----------|
| 1 | Dead Code | 3 unused components in src/components/ | High |
| 2 | Quality  | 12 console.logs in production code | Medium |
| 3 | Perf     | Dashboard page.tsx fetches client-side, could be server prefetch | High |
| 4 | Feature  | Competitor X has [feature] — worth adding | Medium |

Codebase health: [honest assessment — "clean, no urgent issues" is valid]

Say "brainstorm apply" to create stories, or pick specific items.

If the codebase is genuinely clean, say so. Do not invent work to fill a table.

Auto Mode Exception

If .claude/auto-active exists (running in auto mode), skip the presentation and create stories directly in prd.json. Auto mode's IDLE detection depends on story creation to continue the loop.

brainstorm apply

When user says brainstorm apply:

1. Read prd.json (or create with sprint: "S1" if none exists)
2. Deduplicate against existing stories (match first 25 chars of title)
3. Create stories with ID format S{sprint}-{number}
4. Report: "Created X stories, skipped Y duplicates"

Targeted Mode

When user says brainstorm X:

• Skip quality scan entirely
• Read files related to X topic
• Propose 3-5 specific ideas for X
• Present findings (do not auto-create stories)

Deduplication

Before creating any story, check for existing tasks:

const existing = await TaskList();

function isDuplicate(newTitle: string): boolean {
  return existing.some(task =>
    task.subject.toLowerCase().includes(newTitle.toLowerCase().slice(0, 20)) ||
    newTitle.toLowerCase().includes(task.subject.toLowerCase().slice(0, 20))
  );
}

if (!isDuplicate("Add keyboard shortcuts")) {
  TaskCreate({ subject: "Add keyboard shortcuts (Cmd+K)", ... });
}

Report skipped duplicates: "Skipped 2 ideas (already in task list)"

Design System Awareness

Before proposing UI features:

• Check existing component structure (extend vs. replace)
• Ensure proposals use design tokens, not hardcoded colors
• Reference design skill for aesthetic consistency

Rules

• Analyze and propose — do not ask "what do you want?"
• Quality over quantity — 2 real findings beat 6 padded ones
• Validate before claiming — grep to confirm, don't assume
• Skip shadcn/ui colors (library defaults, not project issues)
• Deduplicate against existing tasks before creating
• "Codebase is clean, nothing to propose" is a valid outcome