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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so the safety profile is fully covered elsewhere. The description's one added fact is that results include 'latest revisions', which tells the agent something about payload shape, but it says nothing about ordering, result limits, or failure modes for an empty account.

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 with no filler; the scope qualifier ('this account's') and the content qualifier ('latest revisions') both earn their place.

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?

With no parameters and no output schema, the description does the main remaining work of telling the agent what comes back (controllers plus their latest revisions). It stops short of describing result volume or ordering, which would matter for a list endpoint with no pagination controls.

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?

The tool takes zero parameters, so there is nothing for the description to disambiguate and the baseline is 4. It could have noted there is no filtering or pagination (all saved profiles are returned), but the absence of parameters makes this a minor gap.

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 ('List') and resource scope ('this account's saved controllers and latest revisions'), which lets an agent distinguish it from the singular get_profile sibling. The only wrinkle is terminology drift: the tool is named list_profiles but the description says 'controllers', requiring the agent to infer these are the same objects.

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 indication of when to use this versus get_profile or profile_schema, and no stated exclusions or prerequisites. The agent must infer that a parameterless 'list' is the enumeration counterpart to the singular 'get', which is reasonable but left entirely implicit.

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