check_blacklist

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

No annotations are provided, so the description carries the full burden of disclosing side effects. The word 'check' implies a read-only operation, but it doesn't explicitly state that the tool makes no changes or that data is sourced live. It adds context on the nature of the data (suspended/struck-off) but stops short of explicit safety declarations.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is two short paragraphs with no fluff. The first sentence states the core purpose; the second adds differentiation and usage guidance. It is front-loaded and every sentence earns its place.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has an output schema, so return structure is covered. The description covers purpose, differentiation, and the optional filter behavior. It doesn't mention response size limits or failure handling, but these are minor given the simplicity and the presence of an output schema.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema descriptions already cover each parameter (doctor_name, state_council, registration_number) with brief fields. The tool description adds only the general note that filters are optional ('Provide a filter, or nothing'), which is helpful but doesn't elaborate on individual parameters. Schema coverage is listed as 0%, but the description provides some compensation via the optionality insight.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb and resource: 'Check the live NMC list of suspended/struck-off doctors.' It also distinguishes the tool from a sibling, 'search_doctor_registration alone won't show that, this does,' making the purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Does the description explain when to use this tool, when not to, or what alternatives exist?

Provides clear context on when to use it: for checking suspension beyond registration, and mentions 'Provide a filter, or nothing to get the full current list.' It doesn't explicitly list exclusions or alternative tools, but the contrast with search_doctor_registration gives strong directional guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.