TIA-init

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

Discloses key behaviors: auto-issuing API key, agent type detection (header/parameter), idempotency, and error handling (403). No annotations exist, so description carries full burden; it does so fairly well, though side effects on config are not fully detailed.

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?

Concise yet informative, front-loaded with 'must call on first use'. While somewhat dense, it efficiently covers purpose, prerequisites, and behavior without excess words.

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?

Fairly complete for a simple init tool, but lacks output format description (e.g., structure of returned command file) and error details beyond 403. Given no output schema, this is a gap.

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?

Schema coverage is 100% with enum and description. The description adds meaning by mapping agent types to command file generation, providing context beyond the schema.

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 clearly states the tool's purpose as first-time initialization for TIA MCP Server. It details specific actions (issuing API key, determining agent type, returning command file) and distinguishes itself from sibling tools by being the mandatory first step.

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?

Explicitly states it must be called first and describes prerequisites (IP whitelist) and repeatability. Lacks explicit 'when not to use' guidance, but the context strongly implies it's only for initialization before other tools.

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