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

No annotations are provided, so the description carries the full burden. It adds context that the tool is paid and requires a prior payment transaction, but does not disclose potential side effects, failure modes, or rate limits.

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 sentences plus workflow instruction, all essential. It is front-loaded with the main purpose and provides clear step-by-step guidance without any fluff.

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 description explains prerequisites and workflow adequately given the parameter set and no output schema. It lacks details on return values or error handling, but the complexity is moderate and the rest is covered.

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%, so baseline is 3. The description adds workflow context beyond the schema by explaining that brief_id and payment_tx_hash come from a prior offer and that buyer_mcp_url comes from find_buyers, enhancing understanding.

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?

Description clearly states the tool negotiates a paid offer with a buyer's buying agent, distinguishes it as a post-door step, and explicitly says there is no free pre-door pitch, differentiating it from sibling tools.

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?

The description explicitly outlines when to use the tool: after submitting a paid offer at the brief door, and provides the required steps. However, it does not explicitly mention alternatives or when not to use it, though the 'no free pre-door pitch' implies a condition.

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