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

With no annotations, the description carries the full responsibility for behavioral disclosure, but it mentions no side effects, safety, return behavior, or implications of the operation. For a tool that likely generates or parses policy headers, the agent has zero insight into what the tool does at runtime.

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?

The description is extremely short but under-specifies the tool; it's a terse label rather than concise meaningful guidance. Conciseness is not a virtue when core information is missing.

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?

Even though the tool has only one optional parameter and an output schema exists, the description fails to explain the input semantics or the tool's function. An agent would not know what value to pass for q or what to expect in response.

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 schema has one optional string parameter q with 0% description coverageheb, and the description does not explain what q should contain. The phrase 'camera/mic/geo controls' hints at the policy subject but not the parameter's format or purpose.

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?

The description reads as a label: 'Permissions Policy: Permissions-Policy: camera/mic/geo controls.' It names the topic but no verb or action (parse, generate, validate) is given, and it does not differentiate from any sibling tool like referrer_pol. An agent cannot tell what invoking this tool accomplishes.

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?

There is no guidance about when to use this tool, what problem it solves, or how it differs from alternatives. No when-to-use or when-not-to-use context is provided.

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