doc_breadcrumbs

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

With no annotations, the description carries the full burden, but it only mentions the PRO+ plan requirement. It does not disclose output format, potential errors, or any side effects (e.g., whether it returns a hierarchical list or requires prior context).

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 concise, using only two short sentences to convey the core purpose and a plan constraint. Every word earns its place, but it is so brief that it sacrifices necessary detail, preventing a 5.

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?

Given no output schema and no annotations, the description is incomplete. It does not explain how the target doc page is determined, what the breadcrumbs look like, or any behavioral context. The tool appears simple, but the missing page-identification detail makes it insufficient for an agent to invoke 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?

The schema is empty, so there are no parameters to document; the baseline for 0 params is 4. However, the description does not clarify how the tool knows which doc page to operate on (e.g., whether it uses implicit context), leaving a gap that the schema cannot fill.

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 clearly states the tool gets breadcrumbs for a doc page, using a specific verb and resource. It distinguishes from siblings because no other tool mentions breadcrumbs, but the phrase 'a doc page' is vague since no parameters exist to specify which page.

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 guidance is given on when to use this tool vs alternatives, or how to identify the target doc page. The 'PRO+ plan' note is a constraint but not usage guidance, and there are no exclusions or alternatives listed.

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