Affordance Design Studio

TRACE is a living PRD for Claude Code. Every engineer who uses Claude Code writes a plan, starts building, and watches the plan go stale within the hour. The PRD becomes a tombstone. The code is the only source of truth, and the why behind every tradeoff disappears into commit messages. TRACE closes that loop. A PostToolUse hook captures every Claude Code action into a per-session log. After every turn, a Stop hook fires three Opus 4.7 sub-agents in parallel — one looks for decisions, one for assumptions validated or contradicted, one for open questions. Each returns a confidence-scored proposal. Confidence ≥ 0.5 lands in a review queue. The user accepts or skips in a minimal TUI, and accepted proposals write themselves into the right section of the PRD. This repo's TRACE.md was written by TRACE itself — commit 797daaf is the moment TRACE first used TRACE to document itself.