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

Goes well past the readOnly/idempotent annotations by explaining that quotes are price observations rather than authorization grants, and precisely delimiting what auto_execute_eligible does and does not waive (user prohibition, narrower scope, tighter budget). It also guarantees no execution fallback, which is the key behavioral risk for this tool.

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?

Purpose is front-loaded and most sentences carry distinct rules (no fallback, eligibility limits, naming, session reuse). It is on the long side and the argument-shape constraint is stated twice in spirit, but little is truly wasted.

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?

An output schema exists, so return-value documentation isn't required, yet the description still flags the two response fields that matter for a downstream decision. Combined with session and naming guidance, an agent has everything needed to call it correctly.

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?

At 67% schema coverage the schema already documents each parameter, so the description earns credit only for added meaning: exact-name rules for 'tool', session_id reuse semantics, and the 1-to-20 argument-shape parallel with batch_use. It doesn't clarify search_id beyond what the schema states.

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 specific verb and resource ('Obtain AIsaServices cost quotes for 1 to 20 published tools') plus the crucial scope qualifier 'without executing them.' It is immediately distinguishable from the sibling batch_use, which executes rather than quotes.

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 names the parallel sibling ('Same input as batch_use') and draws the boundary ('Never falls back to execution'). It also gives operational conditions: use names exactly as search returns them, strip any mcp__aisa__ prefix, and reuse session_id from Search for the task.

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