Reasonbook starter: Builder
A Builder keeps a project's decisions and lessons, plus its sprints and missions. This folder holds the two files a project at this level starts with: AGENTS.md, the
project's rules for every agent, and CLAUDE.md, which imports them for Claude Code.
Start
Copy the two files into the project folder, start the record at this level, and read the first review. With the CLI installed (see the three-step quickstart):
cp templates/builder/AGENTS.md templates/builder/CLAUDE.md /absolute/path/to/your/project/
cd /absolute/path/to/your/project
reasonbook init --level builder
reasonbook review --format=context
With the Claude Code plugin (install it), copy the two
files, start a session in the project and run /reasonbook:init, choosing Builder; /reasonbook:start
reads the record.
init writes these same two files when a project has none, so it keeps your copies as they are. Its
line about the record names this level: decisions, lessons, sprints and missions.
Then
Replace the bracketed placeholders in AGENTS.md with the project's own rules. The
method explains what Reasonbook does at each level and how to move up.