Solid foundation with complete schemas and descriptions for all 8 tools. Tool names follow verb_noun convention (index_document, list_documents, search, etc.). All parameters have type definitions and descriptions. However, descriptions are often terse (many under 100 chars), parameter descriptions lack actionable constraints (e.g., no format hints for 'path' parameter), and output schemas are not documented. Error handling guidance is absent, tools don't explain what to do on failure. No tool annotations (readOnlyHint/destructiveHint) despite clear risk levels. Missing idempotency guidance for write operations.

• Document output schemas for all tools. For example, pageindex_local_get_document should specify: 'Returns {documentId: string, status: string, indexedAt: ISO8601, treePath: string, ...}'. This enables agents to chain calls and extract required fields.
• Add tool annotations to TOOL_DEFINITIONS. Mark pageindex_local_remove_document with destructiveHint=true, index_document and reindex_document with idempotentHint=true (if they are), and all read-only tools with readOnlyHint=true. This guides agent retry logic.
• Enhance parameter descriptions with format constraints and validation rules. E.g., 'path: Absolute filesystem path to .pdf, .md, or .markdown file (must exist, no symlinks, max 4096 chars). Returns error if file not found or unreadable.'
• Add error recovery guidance to tool descriptions. E.g., 'If indexing fails with timeout, call pageindex_local_health to verify PageIndex service is running, then retry. If it fails with permission error, check workspace directory permissions.'
• Document pagination behavior in list_documents description: 'Returns up to `limit` documents starting at `offset`. Response includes total_count (total documents matching filter) and has_more (boolean). Use offset += limit to fetch next page.'

Inferred effective spec: <=2025-11-25.

• Relies on Logging (deprecated) - log to stderr or use OpenTelemetry