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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is fully covered. The description's only added behavioral context is 'with their short answers', which hints at the shape of returned content, but with no output schema the return structure and size remain unspecified.

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 naming verb, resource, and content, with no filler. Nothing in it could be cut without losing scope 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?

For a zero-argument, read-only listing tool with a full annotation set, the description covers what is listed and roughly what each entry contains. A minor gap is that it never indicates whether the list is exhaustive or how the 'short answers' relate to the individual guide tools.

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. Baseline 4 applies; the description correctly does not waste space on inputs.

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 (free guides and tools) scoped to planbeforeyoudie.app, and adds that each item carries a 'short answer'. That is enough for an agent to distinguish it from the sibling tools, which are all specific lookups (state_rules, get_form, search_facts) rather than catalog listings, though the description never says so.

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 explicit when-to-use statement and no mention of alternatives or follow-up tools. An agent can infer this is a discovery entry point into the guide catalog, but the description does not say how to use the results or when a sibling like get_form or search_facts would be the better call.

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