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

Beyond the idempotent and non-destructive annotations, the description discloses that candidate routing improvements may be enabled live, that none are active as of 2026-07-26, and that this is a fully working router rather than a stub or fallback shim. It adds meaningful experimental-context and fallback behavior that annotations do not convey. No contradiction with the 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 moderately detailed but efficiently front-loaded with the core identity ('Beta version of ask_pipeworx') and key equivalence facts. The specific retirement date and tool count add context without being redundant. Every sentence contributes to understanding the beta behavior or usage.

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?

Given the lack of an output schema, the description compensates by asserting the same response shape as ask_pipeworx and stating that it is a fully working router. It covers current state, experimental status, and usage equivalence. It could add more about what kind of questions to ask, but the reference to ask_pipeworx provides sufficient context.

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 coverage is 100%, so the schema already documents all parameters including aliases. The description adds the high-level statement that arguments are identical to ask_pipeworx, but provides no additional semantic detail about any specific parameter. This meets the baseline but does not elevate it.

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 5,908 tools, arguments, and response shape. It distinguishes itself from the stable ask_pipeworx by emphasizing the experimental routing edge. It does not explain what a 'universal router' itself does, but the reference to the sibling tool anchors its purpose adequately.

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 wanting the newest routing, which provides clear selection guidance relative to the stable sibling. It also explains that results are compared against the stable router, and notes that no candidate is currently active so behavior matches ask_pipeworx exactly. It stops short of stating explicit when-not-to-use conditions, but the experimental framing implies caution.

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