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

Annotations already declare this a read-only, idempotent, non-destructive call, so little safety disclosure is needed. The description's added value is content scope (key facts, main pages), but it says nothing about the shape or granularity of the returned overview beyond that, and an output schema covers the return values.

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?

One compact sentence that front-loads the content inventory and closes with the actionable 'Start here'. It is efficiently sized for a simple fetch, with only mild list-like padding.

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?

With no parameters, full annotation coverage, and an output schema describing the return, the description supplies everything an agent needs: what the tool covers and that it is the entry point. It is not missing anything required to call 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?

The tool takes zero parameters, so there is nothing for the description to disambiguate; the baseline for a no-parameter tool applies.

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 says specifically what the tool returns: what Samplyn is, who it is for, the scope of work from development to shipment, key facts, and main pages. That enumeration distinguishes it reasonably from sibling lookups like get_capabilities or get_faq, though the verb is implicit rather than stated.

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?

'Start here' is an explicit entry-point directive that tells an agent to open with this tool before drilling into the other Samplyn pages. It does not name an alternative or a when-not-to-use case, which keeps it short of a full 5.

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