This server has critical definition quality issues. Both tools have minimal descriptions (under 20 chars each), no formal input schemas visible in the MCP tool registration, missing parameter type information, and no documented output schemas. The code shows CLI argument parsing via Commander, not MCP protocol tool registration. While the underlying logic is sound, the tool definitions lack the structure and rigor required for agent interaction. No error handling guidance, no input validation messaging, and no schema constraints are visible in the tool definitions.

• Define formal MCP tool schemas. Add explicit tool registration with JSON Schema input definitions. Example for store: { type: 'object', properties: { content: { type: 'string', description: 'The memory content to store. Accepts plain text, markdown, or HTML.' }, tags: { type: 'array', items: { type: 'string' }, description: 'Optional list of tags for categorization (max 10 tags, 50 chars each).' } }, required: ['content'] }
• Expand tool descriptions to 100-150 characters. For store: 'Store a new memory in the memory lake for later retrieval. Memories are persisted locally with optional tags. Returns success status and the storage filename.' For query: 'Search the memory lake for memories matching a keyword. Returns a list of matching memories with excerpts and metadata. Use this to retrieve previously stored information.'
• Document output schemas. For store: return { success: boolean, filename: string, timestamp: string }. For query: return { matches: [ { filename: string, excerpt: string, tags: string[], date: string } ], total: number }. Agents need to know what fields are available.
• Add parameter type constraints in descriptions. For tags: 'Comma-separated tags (max 10, 50 chars each, alphanumeric + hyphen)'. For keyword: 'Search term (1-100 characters, case-insensitive)'. Include examples in descriptions sparingly to guide agent input.
• Return structured error responses instead of logging to console. When query() finds no matches, return { matches: [], total: 0, message: 'No memories found matching keyword. Try a broader term or check available tags.' } so the agent can detect and handle the empty case.