Separate different kinds of state
Working state describes the current task. Durable knowledge may be reused across tasks. Keeping these separate prevents a temporary assumption from becoming a lasting fact.
Retain provenance
Keep the source and relevant date with a remembered fact. A system can then revisit evidence when requirements change or two sources disagree.
A harness makes context, tools, execution, and review part of one observable system.
Define expiration and correction
Some knowledge becomes stale quickly. Establish refresh policies, remove superseded values, and preserve the context of corrections where it matters.
Test usefulness
Evaluate whether memory changes the answer in a useful way. Measure retrieval relevance and task quality rather than assuming that storing more information improves performance.