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

Annotations already carry read-only/idempotent safety, and the description adds context beyond them: it discloses that this is the experimental edge, that behavior may change when a candidate is under test, and that it is a full working router rather than a fallback stub. No contradiction with annotations.

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 four sentences, each carrying distinct information: beta identity, current candidate status, usage directive, and fallback clarification. It is slightly dense but not padded, and the key scoping ('Beta version', 'when you want the newest routing') is front-loaded.

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 universal router with no output schema, the description adequately covers what it is, how to invoke it (like ask_pipeworx), what is identical (tools, args, response shape), and its experimental status. Missing details like answer formatting are deferred to the sibling's documented shape, so nothing required for selection is absent.

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 six parameters all documented as aliases for 'question'. The description adds no parameter-level detail beyond saying 'same arguments' as ask_pipeworx, so it does not meaningfully raise above the schema baseline.

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 explicitly identifies this as 'Beta version of ask_pipeworx: identical universal router' and states its role as an experimental edge with candidate routing improvements, which separates it from the stable ask_pipeworx sibling. It also confirms the same 5,743 tools, arguments, and response shape, making the purpose and scope unmistakable.

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 a direct usage directive: 'Use it exactly like ask_pipeworx when you want the newest routing' and explains results are compared against the stable router. It notes no candidate is currently active, so behavior matches ask_pipeworx, which implies when not to rely on it. It doesn't explicitly contrast with ask_pipeworx_grounded, but the core alternative is named.

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