project-memory
Installation
SKILL.md
Why this store and not the agent's own memory
Every agent has its own memory, and no agent can read another's. A lesson Claude learns is invisible to Codex, and the reverse. This skill keeps one plain JSONL file outside all of them, so whichever agent is driving today reads what yesterday's agent learned.
That only works if every agent loads the file, not just writes to it. Loading is the first half of this skill, not an optional extra.
Two mandatory moves
Two situations, both mandatory.