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

Annotations cover the safety profile (not read-only, not destructive, not idempotent, closed-world), and the description reinforces the non-idempotent nature with 'once per problem' while adding data-handling constraints ('do not include secrets or response data'). It does not say who consumes the feedback or what happens after submission, so it stops short of 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?

Three sentences, all earning their place, with the routing constraint and the `rate` alternative front-loaded. The middle enumeration of feedback categories is long but each item is a distinct actionable trigger, so it is informative rather than padding.

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?

A single-parameter, no-output-schema tool whose annotations already declare the mutation profile. The description supplies purpose, triggers, exclusions, the sibling alternative, and data-handling rules -- everything an agent needs to invoke 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?

There is only one parameter and schema coverage is 100%, with the schema already carrying type, min/max length, and a description. The description reinforces intent ('briefly and concretely') and adds an exclusion (no secrets or response data), but adds little syntax beyond what the schema states -- baseline 3 is right when the schema does the heavy lifting.

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 ('Tell taskfuel ... what worked and what got in the way') and immediately disambiguates the target ('the gateway, not any provider'). It also names the sibling `rate` and the condition that separates the two, so an agent can route without opening either 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 explicit when-to-use triggers (setup/connection trouble, empty or wrong discovery, billing confusion, wrong docs, missing capability, a repeated failure pattern), an explicit when-not with the alternative ('a single endpoint's own behavior belongs in `rate`'), and cadence guidance ('once per problem'). Nothing is left to inference.

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