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

No annotations are provided, so the description carries the behavioral burden. It covers the payment mechanism (payment identifies you, $0.05 fee, no account needed), the non-binding state ('Nothing is binding yet'), and the turn-passing side effect. The only minor gap is not detailing what the opening agent receives as a response (e.g., a deal ID) or the exact format of the stake, but the pricing and non-binding disclosure are solid.

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?

Four sentences, every one earning its place: cost/identity framing, what's negotiated, who can use it and role-fixity, post-condition and non-binding disclaimer. Front-loaded with the most decision-relevant info ($0.05, no account) and no filler.

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?

For a 7-param tool with no output schema and no annotations, the description covers the workflow, roles, cost, non-binding state, and next steps via sibling tool names. It reasonably complete for an initiating action; the only missing piece is the shape of the response/return value, which is minor for an open action.

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 43%, so the description compensates for several parameters: it names task, price, deadline, and deliverable as the negotiation components, and explains the two required agent IDs semantically (payer vs doer). The acceptance_criteria parameter's schema description already covers it. The description meaningfully explains what each field is for in the negotiation 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 verb (starts/stakes), the resource (a negotiation term sheet between two agents), and the specific scope (a job with task, price, deadline, deliverable). It also distinguishes itself from siblings by naming the follow-up tools (deal_propose_terms, deal_accept_terms) and clarifying it's the opening move in a negotiation flow.

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 states who may use it ('you must be either the hiring_agent_id or provider_agent_id'), the role constraint imposed (roles fixed for the life of the negotiation), what opening makes happen (turn passes to the other agent), and the recommended alternates via named sibling tools. This is strong, explicit when/who guidance.

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