Vibe Memory has 9 tools with inconsistent quality. Most tools have descriptions (7/9), but parameter schemas are incomplete or missing entirely. Tool names follow verb_noun convention (recall, query, create, store, learn, build, init, search, add), which is good. However, input schemas lack proper JSON Schema structure with type definitions for most parameters. Descriptions range from adequate (194 chars avg baseline) to vague. No output schemas documented. Error handling is absent. Security concerns: store_memory and learn tools accept free-form text without validation; no mention of secret injection or permission gates. Composition is weak, multiple tools do similar things (recall_memory vs search vs query_codebase_ast), forcing LLM disambiguation.

• Add formal JSON Schema type definitions to all parameters. For 'section' in store_memory and add, use enum: ['arch', 'bug', 'pref']. For 'query' and 'observation', add minLength: 1, maxLength: 1000. For 'rootDir', add a pattern for valid file paths.
• Document output schemas for all tools. E.g., query_codebase_ast should return {symbols: [{name: string, type: string, location: string, ...}], total: number}. recall_memory should return {matches: [{section: string, text: string, tags: string[], ...}], count: number}.
• Consolidate overlapping search tools. Merge recall_memory and search into a single search_memory tool with a 'scope' parameter (tag|query|full). This reduces LLM disambiguation overhead and clarifies intent.
• Add error handling and recovery guidance. E.g., store_memory should return {success: boolean, error?: {code: string, message: string, suggestion: string}}. On duplicate tag, suggest: 'Tag already exists. Call recall_memory to view existing entries.'
• Implement input validation and sanitization. Validate section values, reject paths with '..' or leading '/', limit text length to prevent DoS. Return clear validation errors: 'Invalid section: got "invalid", must be one of: arch, bug, pref'.