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

With no annotations, the description carries the full behavioral burden. It helpfully discloses that this is a paid tool at a specific price ($0.04 USDC), which is real behavioral information for a cost-sensitive agent, and implies an analysis/read operation. However, it omits confirmation that it is non-destructive/read-only, the output shape, and failure behavior if payment is not tendered.

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?

A single front-loaded sentence that puts cost and purpose first with no filler. It is efficient and well-ordered, though the trailing list of signal categories is broad enough to verge on enumeration for its own sake.

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 no-annotation, no-output-schema tool, the description establishes purpose and cost but says nothing about return structure or what the checked signals look like as output. Adequate to select the tool, thin for predicting its result.

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 description coverage is 100%, so the baseline of 3 applies. The description adds no parameter-level detail (no mention of text, title, counterparty, or the payment signature flow), leaving all semantics to the schema, which already documents each field adequately.

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?

States a concrete verb (checks) and a specific resource domain (SaaS terms), then enumerates the signal categories it reports: suspension, unilateral changes, data, SLA, renewal, liability. This is clearly distinguishable from siblings such as check_nda_clauses or extract_payment_terms by domain and output intent, though the description never names an alternative to reinforce the distinction.

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?

No guidance on when to choose this tool over check_nda_clauses, analyze_contract_risk, or review_vendor_contract_risk. The only usage-adjacent content is the payment flow, which is carried in the schema's paymentSignature description rather than here. An agent must infer the selection criteria from the name alone.

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