VecRecall has 23 tools with complete JSON schemas and descriptions in Chinese. However, critical gaps limit production readiness: (1) Parameter descriptions are minimal or absent for many fields (e.g., mp_add's 'wing', 'importance', 'session_id' lack guidance on format/constraints); (2) Output schemas are completely undocumented, no tool declares what fields it returns, forcing LLMs to guess; (3) Tool names use 'mp_' prefix (memory pool?) but lack clear verb-noun structure; (4) Error handling is absent, no guidance on retryability, user-fixable vs fatal errors, or recovery paths; (5) No tool annotations (readOnlyHint, destructiveHint, idempotentHint) despite clear read/write semantics. Schemas are present and mostly well-formed, but descriptions lack the specificity (format, range, constraints) needed for reliable LLM invocation. Chinese descriptions are clear but do not follow Arcade's 50-200 char guideline for LLM optimization.

• Document output schemas for all tools. Example for mp_search: 'Returns {"results": [{"id": string, "content": string, "score": number, "topic": string, "wing": string}], "total": number}'. This enables LLMs to chain tools and extract required fields.
• Add constraint descriptions to numeric parameters. E.g., 'importance: number (0-1, auto-scored if omitted)', 'threshold: number (0-1, default 0.55 for semantic similarity)', 'limit: integer (1-100, default 20)'.
• Rename cryptic tools: mp_l1_moments → mp_get_top_memories, mp_l2_context → mp_search_topic_context, mp_l3_deep → mp_search_full_depth, mp_fuzzy_recall → mp_search_fuzzy. Verb-noun names are self-documenting.
• Add tool annotations via inputSchema. Mark write tools with 'destructiveHint': true (mp_add, mp_update_importance, mp_link, mp_diary_write, mp_archive_session, mp_import_json, mp_set_identity). Mark read tools with 'readOnlyHint': true.
• Add error handling guidance to tool descriptions. E.g., 'If memory_id not found, returns error code 404 with available IDs. Retry with mp_search() to find the correct ID.' This guides agent recovery.