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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and non-destructive behavior. The description adds valuable behavioral context beyond those: beta status, the fact that no candidate routing improvement is currently active, that results are compared against the stable router for merge decisions, and that it is a full working router rather than a fallback.

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 dense and mostly front-loaded, with every sentence contributing useful information about the beta nature, current state, and usage. There is some redundancy between 'identical universal router', 'same 5,798 tools, same arguments, same response shape', and 'matches ask_pipeworx exactly', but it remains clear and not bloated.

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?

The description covers the tool's current state, its relationship to the stable router, usage guidance, and explicitly clarifies that it does not fall back to anything. A minor gap is that no output schema exists and the description only says 'same response shape' without describing what that shape is, which could be ambiguous without prior knowledge of ask_pipeworx.

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%, and the schema already documents the question parameter plus all aliases. The description only says 'same arguments' without adding additional semantic detail, so it meets the baseline but does not exceed what the schema already provides.

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 this as the beta version of ask_pipeworx, an identical universal router with the same tools, arguments, and response shape, but with experimental routing improvements. It explicitly names ask_pipeworx as the stable counterpart, so an agent can distinguish this tool from its siblings.

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 explicitly says to use it exactly like ask_pipeworx when you want the newest routing, which provides a concrete selection condition. However, it does not explicitly state when not to use it or how it compares to other related siblings like ask_pipeworx_grounded.

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