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

Beyond the annotations declaring read-only, open-world, idempotent, and non-destructive behavior, the description adds valuable transparency: it is a beta experimental edge, may have candidate routing improvements enabled live, currently has no active candidate, fully matches ask_pipeworx now, and is a full working router rather than a fallback. This gives the agent a realistic picture of variability and reliability.

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 informative without being overly long, with each sentence serving a purpose: identity, current status, usage guidance, and clarification that it is a full working router. The phrasing is slightly dense, such as 'Falls back to nothing — this IS a full working router,' but overall it is well-structured and 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?

The description covers the tool's relationship to ask_pipeworx, its experimental status, current parity with the stable router, and response shape. Since there is no output schema, mentioning that the response shape is identical to ask_pipeworx helps, though it does not independently describe the return payload.

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 parameter semantics are already fully documented. The description only says 'same arguments' and does not add new parameter-level meaning, which is acceptable given the schema's completeness.

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, a universal router, and specifies that it shares the same 5,908 tools, arguments, and response shape. It distinguishes itself from the stable ask_pipeworx by being the experimental edge with candidate routing improvements.

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 explicitly says to use it exactly like ask_pipeworx when you want the newest routing, and explains that results are compared against the stable router. It does not explicitly state when not to use it or name the stable alternative directly, but the experimental framing and reference to the stable router provide clear context.

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