Ralph
Autonomous AI agent loop that runs until all PRD items are complete
...Each run selects the highest-priority unfinished user story, implements it, runs quality checks, commits passing work, and updates the PRD status. The workflow encourages teams to split features into small, verifiable stories that fit inside a single context window. It also supports PRD generation skills, PRD-to-JSON conversion, Claude Code marketplace installation, browser verification for UI stories, and automatic archiving of previous feature runs.