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

The description goes well beyond the readOnly/openWorld/idempotent annotations by explaining the experimental release status, the current no-candidate state, parity with ask_pipeworx right now, and the fact that results are compared against the stable router. It also removes a likely misconception by stating 'Falls back to nothing — this IS a full working router.' No contradiction with annotations exists.

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 front-loaded with identity, then usage, then behavioral caveats, and every sentence contributes. It is slightly longer than necessary, with details like the retirement date and the repeated 'same ... same ... same' clause, but the added context is genuinely useful for a beta tool.

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 variant tool, referencing ask_pipeworx for exact usage and response shape is reasonable and effective. The description covers current behavior, parity, experimental status, and fallback expectations. It relies on the agent knowing or consulting the ask_pipeworx sibling for the precise response format, which is an acceptable but minor dependency.

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%, so the schema already fully documents the question parameter and its aliases. The description only says 'same arguments' as ask_pipeworx, which adds no parameter-level meaning beyond what the schema provides. This is a fair baseline-3 case.

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 identifies the tool as the beta version of ask_pipeworx, a universal router over 5,798 tools with identical arguments and response shape. It distinguishes this experimental variant from the stable ask_pipeworx sibling, and the instruction 'Use it exactly like ask_pipeworx' anchors the intended action.

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?

The description gives a clear use condition: use it like ask_pipeworx 'when you want the newest routing,' and it explicitly names the stable router as the comparison point. It stops short of an explicit when-not-to-use instruction, such as 'for stable/production results, use ask_pipeworx instead,' though that is strongly implied by the beta framing.

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