Critical gaps across all dimensions. Tool descriptions are present but highly technical and domain-specific (e.g., 'Explicit OWNER command: evaluate PLAN, accept, create durable dispatch...'), making them difficult for LLMs to parse. No visible input/output schemas in the provided source code, only type imports and references. Parameters are not documented with descriptions, types, or constraints. The 18 tools appear to form a complex task lifecycle system but lack the clarity needed for reliable LLM invocation. Naming is verb-based (execute_, create_, get_, list_, claim_, checkpoint_, resume_, report_, recover_, close_, cancel_, delegate_, await_) which is good, but descriptions do not explain WHEN to use each tool or what distinguishes similar operations (e.g., claim_task vs claim_next_task). No evidence of error handling guidance, pagination support, or output field documentation.

• Add explicit input and output schemas to all 18 tools. For each tool, document parameter types (string, number, boolean, enum), required vs optional, constraints (min/max, regex, enum values), and return field types. Use JSON Schema format visible in tool registration.
• Write clear, LLM-optimized descriptions (50 - 200 chars) for all tools. For each, answer: What does it do? When should the LLM call it instead of similar tools (e.g., claim_task vs claim_next_task)? What does it return? Example: 'claim_task: Assign a specific task to the current worker. Use when you know the task ID; use claim_next_task to auto-select the next available task.'
• Add descriptions to every parameter. For example, if create_task has a 'type' parameter, document: 'type (enum: implementation|diagnosis): The kind of task to create. Use implementation for coding work, diagnosis for debugging.'
• Document error scenarios and recovery paths. For each tool that can fail (recover_task, delegate_task, report_blocked), specify: What errors can occur? What should the LLM do? Example: 'If task is not found, call list_active_tasks to see available tasks.'
• Add pagination support to list_active_tasks and list_worker_profiles. Document limit, offset/cursor, and total_count in the output schema. Cap results at 20 - 50 items per the rubric baseline.