Coding agents forget. You tell Claude Code to use pnpm, it does, and the next session it reaches for npm again. Your teammate corrects their own agent about something else, in their own clone, and the two agents slowly drift apart. Each of you ends up as the memory for a tool that is supposed to be saving you effort.

PeerHarness is a small Rust binary that gives the agent a place to put what it learns from you. When you correct it, the agent notes the correction as a one-sentence rule. You keep the rule for your own agent, or put it to your team. When a majority approves, the rule is installed for every member's agent as an Agent Skill, and it applies from their next session.…