docs_outline

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

No annotations are provided, so the description carries the burden. It clearly indicates this is a read/list operation and conveys the tool is safe enough to be a first call. It does not explicitly discuss side effects, output size, or performance, but it is not misleading and discloses the essential 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?

Two concise sentences with no filler. The action is front-loaded, the return content is summarized, and the second sentence provides a clear usage recommendation.

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 simple listing tool with no required parameters and a complete schema, the description sufficiently explains what it returns and when to call it. It could say more about the exact output structure, but an agent has enough to select and invoke it 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?

Schema description coverage is 100%, with both optional parameters documented in the schema. The description adds only the context of 'docs root' but does not need to compensate since the schema already explains root and max_files.

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 states a specific verb and resource: 'List the documentation available under the docs root, with each file's headings.' It also distinguishes itself from search by framing this as an orientation call 'before searching,' which separates it from tools like docs_search.

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?

It gives explicit usage context: 'A good first call when you do not yet know the app's vocabulary' and places it 'before searching.' It does not explicitly name sibling alternatives or state when not to use it, but the intended timing is clear.

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