The read/write split is clear: synapse_recall and synapse_get_stats are retrieval, while synapse_retain and synapse_record_episode are storage. synapse_retain and synapse_record_episode both write memories, which could be confused, but the descriptions distinguish atomic facts/SOPs from structured Situation-Action-Outcome-Lesson episodes.

All tools share the synapse_ namespace prefix and use verb-based names, giving a predictable pattern. Minor deviation: recall and retain are bare verbs while record_episode and get_stats use verb_noun form, but the set still reads consistently.

Four tools is a tight, focused surface for a memory engine, and each one has a distinct role (store fact, store episode, recall, stats). It sits at the low end of the comfortable range, with room for lifecycle operations without feeling padded.

Core workflows (store and retrieve memories, check stats) are covered, but the lifecycle is incomplete: there is no update/edit, delete/forget, or list/enumerate operation. For a persistent memory system, the inability to correct or remove outdated facts or SOPs is a notable gap.