Memory hygiene is operational hygiene

Persistent memory without governance turns into a landfill.

Symptoms of memory bloat

• irrelevant recalls
• stale advice resurfacing
• higher latency as candidate sets grow

Hygiene fundamentals

1) Importance scoring on write

Not all messages deserve permanence.

2) TTL for low-value items

Temporary plans should expire automatically.

3) Pruning jobs

Regularly demote or archive low-signal memories.

4) Checkpoints for milestones

Snapshot meaningful states so retrieval can anchor around them.

Practical scoring model

const importance =
  0.4 * novelty +
  0.3 * decisionImpact +
  0.2 * reusability +
  0.1 * userExplicitSave;

Persist only above threshold.

Pruning policy example

• low salience + old + never retrieved -> archive
• contradicting memories -> mark superseded
• duplicate summaries -> merge

Avoid silent drift

Run weekly probe questions and compare expected answers. If precision drops, inspect recent write quality first.

Human-in-the-loop moments

Give operators tools to:

• pin critical memories
• invalidate outdated facts
• inspect why a recall was ranked highly

Security angle

Hygiene also reduces exposure. Less unnecessary retention means smaller blast radius.

Checklist

• capture filters enabled
• TTL defaults configured
• pruning scheduled
• supersession logic active
• recall probes monitored

Memory quality compounds over time if you maintain it. It decays if you don’t.