Progressive Spec-Driven Development (SDD) toolkit for AI coding agents — Claude Code, Copilot, Codex. Slash-command Skills + structured AI Knowledge + MCP server; Progressive Disclosure cuts 70–80% tokens. Brownfield & greenfield.
Latest release 2.1.1 — 2.1.1 — Marker Placement: hand-written module READMEs validate as documented · 4 Sept 2026
2 files for Codex, OpenCode and Claude Code: prospec AGENTS.md, prospec CLAUDE.md — 3,803 tokens loaded in every session.
AGENTS.md A 2,608 tok CLAUDE.md A 1,195 tok These files are benwu95/prospec's own configuration — they tell Codex, OpenCode and Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.