request_entitlements

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

With no annotations, the description carries the full burden. It usefully discloses a failure mode ('the response lists what is missing') and its remediation, but says nothing about authorization requirements, whether the request is applied immediately or requires approval, or reversibility/idempotency for what is clearly a mutation.

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?

Three short sentences, zero filler, and the core action is front-loaded ahead of the prerequisite and the follow-up branch. Every sentence carries routing or behavioral information.

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 and no annotations, so the description must carry return-value and behavior context; it does mention what the response can contain (missing verification items) and the next step. It is close to complete, but omits the outcome semantics (does the entitlement become active immediately?) that an agent would want before applying.

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 both parameters are already documented in the schema (customerId, entitlements with enum values). The description adds no syntax or format detail beyond the example phrasing, 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 ('Apply for one or more entitlements for an existing customer') plus a concrete example use case ('to add a payment rail'). It names two sibling tools, list_available_entitlements and submit_entitlement_requirements, so an agent can place it in the workflow without opening the schema.

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?

Gives a clear prerequisite ('Check list_available_entitlements first') and a conditional follow-up path when verification is incomplete, naming the alternative tool explicitly. It stops short of stating when NOT to use this tool, so it is strong but not exhaustive.

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