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

Annotations already declare readOnlyHint, idempotentHint, and destructiveHint false, so the safety profile is covered. The description adds useful behavioral detail about the two modes (page list vs. one page's sections/export URLs), though it does not disclose return format, pagination, or error behavior.

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 entire description is one front-loaded sentence that states the main action first and the parameter-dependent alternate mode second. There is no filler, repetition, or reference to structured data that is already visible.

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 tool with one optional parameter, no output schema, and no nested objects, this description is largely sufficient: an agent can call it with or without page and understand the nominal result. It is only slightly incomplete in not prescribing return formatting or when to prefer sibling read/search 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?

Schema coverage is 0%, so the description must explain the 'page' parameter, and it does: the phrase 'of one page' clarifies that providing page switches the call into the sections/export-URL mode. This goes beyond the raw schema pattern, though it stops short of specifying accepted page values or output details.

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 uses a specific verb-resource pair: it 'lists Empryo documentation pages' and distinguishes a second mode for one page's sections and export URLs. This separates it from read_docs and search_docs by operation and from current_release by resource scope.

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 guidance about when to use list_docs versus read_docs or search_docs, and no exclusion conditions. The intended usage can be inferred from the verb 'list', but the description leaves all routing decisions to the agent.

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