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

Annotations already declare readOnly/idempotent/non-destructive, and the description adds real behavioral context beyond them: sort order and currency units, the 'prices are estimates until priceStatus is final' caveat, and the handling of declined quotes (excluded but counted in declinedCount). It omits any pagination or result-size behavior, so not a 5.

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?

Front-loads the core action and ordering before the optional bundleIds behavior and the caveats. Dense but each sentence carries distinct information; the final 'It doesn't request quotes' is terse but earns its place as an exclusion.

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?

No output schema exists, so the description must convey the return shape, and it does: sorted quote list, per-policy coverageSummary, bundle coverages/discounts/payment plans, and declinedCount. Pricing finality is also covered; only pagination/response envelope details are absent.

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 both intentId and bundleIds are already documented in the schema, including the 4-bundle cap and the extra data returned. The description adds only the comparison rationale ('for example to compare them'), which is marginal over the schema, so the baseline 3 applies.

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 ('List every quote for a shopping intent') plus scope and ordering ('cheapest first by monthly price (in USD cents)'). It also explicitly distinguishes itself from the sibling jerry_request_quotes with 'It doesn't request 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?

Explains the conditional use of bundleIds ('Pass up to 4 bundleIds ... for example to compare them') and gives the negative exclusion that it does not fetch new quotes, implicitly routing to jerry_request_quotes. It never names that sibling or states the exact when-to-use condition, so it stops short of a 5.

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