Localmem MCP demonstrates solid naming conventions (verb_noun pattern: memory_store, memory_get, memory_search, memory_recent, memory_update) and comprehensive parameter schemas with type definitions and descriptions. Tool descriptions are present and contextual, ranging 150-400 chars. However, output schemas are not documented in the visible code, critical for LLM planning. Parameter descriptions are detailed but some lack explicit constraints (e.g., memory_store's 'content' field has guidance but no length limits). Error handling is mentioned (errorReporting=true) but recovery guidance is not visible in the tool definitions. The memory_store tool includes helpful USE WHEN/DO NOT USE guidance, setting a good pattern, but this is inconsistent across tools.

• Document output schemas for all tools. Specify return types: memory_search should return {memories: [{id, title, content, type, tags, headline, score}], total_count, has_more}. memory_get should return {memories: [{id, title, content, ...}]}. This enables LLM chaining.
• Expand memory_recent description to 150+ chars: explain that it returns memories ordered by most recent update/creation, typical use is to refresh context at session start, and clarify the time window (last N days? all time?).
• Add explicit constraints to memory_store 'content' parameter: 'Plain text, 1-2000 characters, must end with period/exclamation/question mark. No markdown or special formatting.'
• Add error recovery guidance to tool descriptions. E.g., memory_store: 'If UUID conflict occurs, the server auto-generates a new UUID. If validation fails, the error message specifies which field violated constraints.'
• Clarify idempotency and partial updates in memory_update: 'Idempotent, calling twice with same id and content produces same result. Omitted fields are not modified. If id does not exist, returns 404 with suggestion to use memory_store instead.'