Three tools with clear verb-noun naming (observe, recall, forget) and reasonable descriptions (120-180 chars). All tools have input schemas with typed parameters and descriptions. However, output schemas are not documented in the source code provided, and parameter descriptions lack actionable constraints (e.g., no limit ranges, no format specifications for timestamp). Error handling guidance is absent, tools do not indicate what to do on failure (e.g., 'memory not found', 'query too broad'). The 'forget' tool lacks a confirmation/dry-run pattern despite being destructive. Parameter relationships (e.g., tags filtering in recall) are documented but could be more explicit about mutual exclusivity.

• Document output schemas for all three tools. Example for observe: {memory_id: string, timestamp: string, tags: string[], source: string}. Example for recall: {results: [{memory_id, content, relevance_score, tags, source, timestamp}], total_count: integer}.
• Add parameter constraints: limit (1 - 1000, default 20), timestamp (ISO 8601 format), tags (array of 1 - 50 strings, each 1 - 50 chars). State these in parameter descriptions and JSON Schema.
• Implement confirmation pattern for forget: add optional 'confirm: true' parameter. Require explicit confirmation to prevent accidental deletion. Document: 'Set confirm=true to permanently delete. This action cannot be undone.'
• Add error recovery guidance to tool descriptions. E.g., recall: 'If no results found, try a broader query or remove tag filters. Call observe() to add new memories.' forget: 'If memory_id not found, call recall() to search by content first.'
• Clarify tag semantics and constraints. E.g., 'Tags are lowercase alphanumeric strings (1 - 50 chars each). Max 10 tags per memory. Used for filtering in recall().' Add examples: tags: ['project-x', 'urgent', 'follow-up'].