Two tools with clear, well-written descriptions (194 - 250 chars, above baseline 194 avg). Input schemas present with types and descriptions. However, output schemas are undocumented (no return type specs), and parameter validation rules are not formally stated. Error handling is basic (returns strings, no structured error classification). Tool composition is sound (single responsibility), but missing pagination support and result limits despite recall accepting top_k. Security is strong (read-only, no secrets in params, input validation present in code).

• Document output schemas formally. For recall: return {results: [{score: float, project: string, session_id: string, date: string, title?: string, text: string}], total: int}. For recall_list_projects: return {projects: {[project_name]: snippet_count}}.
• Add result limit and pagination guidance to recall description: 'Returns up to top_k results (max 10, default 5) ranked by relevance score. No pagination cursor; use multiple queries with different keywords for broader recall.'
• Enhance error responses with recovery hints. E.g., 'Empty query. Provide a topic or question to search past sessions.' and 'Project not allowed. Call recall_list_projects() to see available projects.'
• Expand recall_list_projects description to explain discovery use case: 'Call this first to see which projects are indexed before filtering recall by project name.'
• Document project parameter format: 'optional, restrict to one project directory (must match a project name from recall_list_projects; case-sensitive).'