Cobuilder:ideation To Execution

Ideation to Execution

End-to-end workflow from brainstorming through PRD, solution design, worktree creation, and autonomous TDD pilot launch. Inspired by the superpowers methodology.

Core Principle: Never jump to code. Discover → Design → Plan → Execute with TDD.

Phase 1: Brainstorming (Discovery)

Modeled after superpowers:brainstorming — structured discovery through dialogue.

Workflow

1. Clarify goals — Ask 2-3 focused questions about the initiative. What problem does it solve? Who benefits? What does success look like?
2. Present designs in digestible sections — Break the design into logical chunks. Present each for approval before moving on.
3. Challenge assumptions — Use Skill("parallel-solutioning") to generate 2-3 competing approaches. Evaluate trade-offs.
4. Converge — Synthesize the approved design sections into a coherent brief.

Output

A brainstorm brief in docs/brainstorms/{initiative-id}-brief.md with:

• Problem statement
• Target users and impact
• Proposed approach (with rejected alternatives noted)
• Open questions resolved
• Success criteria (proto-acceptance criteria)

Template available at references/brainstorm-template.md.

Phase 2: PRD Creation

Transform the brainstorm brief into a formal Product Requirements Document.

Workflow

1. Read brainstorm brief — Load docs/brainstorms/{initiative-id}-brief.md
2. Research domain — Use Skill("research-first") to validate technical feasibility and framework choices
3. Draft PRD — Write to docs/prds/PRD-{CATEGORY}-{NNN}.md with required frontmatter:

---
title: "Feature Title"
description: "One-line purpose"
version: "1.0.0"
last-updated: 2026-03-21
status: draft
type: prd
prd_id: PRD-{CATEGORY}-{NNN}
grade: authoritative
---

4. Include acceptance criteria — Each requirement must have testable acceptance criteria written as Gherkin scenarios
5. Generate blind acceptance tests — Use Skill("acceptance-test-writer") to create executable test scripts from the PRD before any implementation begins

PRD Structure

## Problem Statement
## User Stories
## Requirements
### Functional Requirements (with Gherkin acceptance criteria)
### Non-Functional Requirements
## Technical Constraints
## Out of Scope
## Implementation Status

Phase 3: Solution Design

Create the technical blueprint that workers will follow.

Workflow

1. Research-first — Spawn research sub-agent with Skill("research-first") targeting frameworks, libraries, and patterns
2. Architecture decisions — Document key decisions with rationale and alternatives considered
3. Write SD — Create docs/sds/SD-{CATEGORY}-{NNN}.md with frontmatter (type: sd, prd_ref: PRD-{CATEGORY}-{NNN})
4. Task decomposition — Break the SD into worker-sized tasks with:
   • Explicit file scope (which files each task touches)
   • Validation criteria per task
   • Dependencies between tasks
   • Worker type assignment (frontend-dev-expert, backend-solutions-engineer, etc.)

SD Structure

## Overview
## Architecture
## Component Design
## Data Model
## API Design (if applicable)
## Task Breakdown
### Task 1: [Name] (worker_type: frontend-dev-expert)
- Scope: [files]
- Acceptance: [criteria]
- Dependencies: [none | task IDs]
### Task 2: ...
## Testing Strategy
## Implementation Status

Phase 4: Worktree & Pipeline Setup

Create an isolated development environment and TDD pipeline.

Workflow

1. Create worktree — Use Skill("worktree-manager-skill"):

git worktree add .worktrees/{initiative-id} -b feature/{initiative-id}

2. Copy PRD and SD — Ensure the worktree has access to PRD, SD, and blind acceptance tests

3. Generate TDD pipeline — Use Skill("cobuilder:tdd-pipeline") to instantiate the tdd-validated template from the SD task breakdown

4. Configure worker powers — The tdd-validated template automatically sets worker_powers="tdd,systematic-debugging,verification" on all codergen nodes

Phase 5: Launch Autonomous TDD Pilot

Hand off to the pipeline runner for autonomous execution.

Workflow

1. Validate pipeline — python3 cobuilder/engine/cli.py validate {pipeline.dot}
2. Launch runner — python3 cobuilder/engine/pipeline_runner.py --dot-file {pipeline.dot}
3. Monitor via Haiku sub-agent — Spawn blocking monitor that completes on gate detection, failure, or stall
4. Handle gates — Validate work against blind acceptance tests using Skill("acceptance-test-runner")

Quick Decision Tree

User says "I have an idea" or "Let's build X"
    → Phase 1: Brainstorm (cobuilder:brainstorming for sub-decisions)

Brainstorm approved
    → Phase 2: PRD + blind acceptance tests

PRD approved
    → Phase 3: Solution Design + task decomposition

SD approved
    → Phase 4: Worktree + TDD pipeline generation (cobuilder:tdd-pipeline)

Pipeline ready
    → Phase 5: Launch autonomous pilot (workers use cobuilder:tdd)

Additional Resources

Reference Files

• references/brainstorm-template.md — Template for brainstorm brief documents