Each tool targets a distinct action and resource, but some functional overlap exists: 'search_past_failures' and 'get_regression_test' both relate to historical failures, and 'explain_code_history' and 'check_patch_against_memory' both deal with stored repository memory. The descriptions are terse but generally enough to guide selection.

All tool names follow a consistent lowercase snake_case verb-first pattern: search_, explain_, check_, list_, get_, replay_. The naming style is uniform and predictable across the entire set.

Six tools is well-scoped for a specialized repository memory/invariant server. Each tool has a clear purpose, and the count feels neither thin nor bloated for the apparent domain.

The surface covers the main read/replay workflow: searching failures, explaining history, checking patches, listing invariants, and replaying test cases. The only notable gap is the lack of any tool to record or update memory/invariants, but this may be intentional if ingestion happens outside the server.