development

hewitt-ralph

Autonomous TDD coding loop — runs tests, writes code, runs tests again, iterates until passing.

RALPH (Repeated Autonomous Loop for PRD Handling) implements coding tasks using strict test-driven development — write a failing test, make it pass, refactor, repeat. Adapted from [Craig Hewitt's Ralph skill](https://github.com/thecraighewitt/skills).

Difficulty: advanced
Input: conversation
Output: document
Needs: install
Used by: Product Manager

What it needs

task_description — What to implement — a user story, issue description, or task spec
project_path — Absolute path to the project being worked on
task_list — List of tasks to implement — can be a markdown checklist, issue list, or PRD
max_iterations — Maximum iterations before stopping (default: 10)

What you get

Full loop log with all iterations, tests, and commits
Log of what was implemented, tests written, and commit made
prefer a permanent directory)

Ask it like this

ralph
TDD loop
red-green-refactor
autonomous coding
implement with tests
test-driven development cycle.
implement with tests
run tests, fix, repeat