7 tools with complete input schemas and descriptions, but quality is inconsistent. Tool names use API- prefix (non-standard) and lack action verbs. Descriptions are present but brief (10-50 chars, below the 50-200 char baseline for LLM optimization). Parameters have types and descriptions, meeting minimum requirements. No output schemas documented. Error handling and recovery guidance absent. Risk annotations (READ_ONLY, WRITE, DESTRUCTIVE) are present but not mapped to MCP tool annotations.

• Rename tools to drop 'API-' prefix and use verb_noun convention: list_pets, create_pet, get_pet_by_id, update_pet_status, delete_pet, upload_pet_photo, upload_pet_documents. This matches LLM expectations and saves tokens.
• Expand descriptions to 80-150 chars. Example: 'List all pets in the store, optionally filtered by status (available, pending, sold). Returns an array of pet objects with id, name, species, age, and status.' Include state-change implications for write operations.
• Document output schemas for each tool. Specify: field names, types, and which fields are required for downstream tool calls. E.g., createPet should return {id, name, species, age, status} so the LLM can immediately call updatePetStatus with the returned id.
• Map risk annotations to MCP tool annotations: mark deletePet with destructiveHint=true; mark listPets, getPetById with readOnlyHint=true; mark createPet, updatePetStatus, uploadPetPhoto, uploadPetDocuments with idempotentHint=false (or true if they support idempotency).
• Add error handling guidance to descriptions. E.g., 'If pet not found, returns 404 with message. Try list_pets to verify the pet exists.' For file uploads, specify accepted formats and size limits in the description.