Brainstorming Planner Agent

A primary agent for OpenCode that facilitates structured brainstorming sessions using 6-3-5 and Rolestorming methodologies.

Features

• Two methodologies: 6-3-5 (Brainwriting) and Rolestorming
• Iterative loop: Continues until you say "stop"
• Thorough questioning: Gathers all necessary context
• Automatic documentation: Generates .md file with full session
• Prioritization: Helps identify the best ideas
• High creativity: Temperature 0.75 for original ideas

Installation

Global (recommended)

mkdir -p ~/.config/opencode/agents
cp brainstorm.md ~/.config/opencode/agents/

Per-project

mkdir -p .opencode/agents
cp brainstorm.md .opencode/agents/

Usage

In OpenCode:

1. Press Tab to switch agents
2. Select "brainstorm"
3. Type your topic or problem

Or invoke directly:

@brainstorm I need ideas to improve user retention

Methodologies

6-3-5 (Brainwriting)

Idea generation technique in rounds:

• You generate 3 initial ideas
• Each round builds on previous ones
• No time limit
• Records decisions per round
• Continues until you want to stop

Best for: Generating many ideas quickly, exploring variations.

Rolestorming

Multiple perspectives technique:

• The agent adopts a role/persona
• Announces the role BEFORE each round
• Generates ideas from that perspective
• Changes role in each iteration
• Synthesizes all perspectives at the end

Typical roles: Novice user, expert, competitor, investor, critic, etc.

Best for: Seeing problems from unexpected angles, empathizing with users.

Session Flow

1. SETUP
   - Context questions
   - Choose methodology (A or B)

2. EXECUTION
   - Idea rounds according to methodology
   - Decisions recorded per round

3. SYNTHESIS
   - Consolidate all ideas
   - Categorize
   - Prioritize

4. DOCUMENTATION
   - Create brainstorm-[topic]-[date].md file
   - Includes: context, rounds, decisions, prioritization, next steps

5. LOOP
   - Continue iterating or close session

Output

Each session generates a markdown file:

brainstorm-[topic-slug]-YYYYMMDD.md

Contents:

• Context and questions
• All rounds with decisions
• Complete list of ideas
• Categorization
• Top prioritized ideas
• Conclusions
• Actionable next steps

Quick Example

USER: @brainstorm Ideas for productivity app name

AGENT: Hi! Let's find the perfect name.

Quick questions:
1. What does your app do?
2. Tone: serious or fun?
3. Preferred language?

Methodology?
A) 6-3-5 - Generate many names
B) Rolestorming - See from user perspectives

USER: A, it's a task manager, minimalist tone, English

AGENT: Perfect! 6-3-5 with minimalist style.

ROUND 1 - Write 3 names:
1. ...
2. ...
3. ...

Requirements

• OpenCode installed
• Configured provider (Z.AI, Anthropic, etc.)

License

This work is licensed under the Creative Commons Attribution-ShareAlike 4.0 International License.

Please read the LICENSE file for more details.