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

The description goes well beyond the read-only and idempotent annotations by disclosing that this is an experimental edge router, that candidate routing improvements are enabled only when under test, that none are currently active, and that it is compared against the stable router. It also clarifies that it is a fully working router, not a fallback, which is important behavioral context.

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 information-dense with no fluff. Each sentence serves a distinct purpose: identity, current state, usage guidance, and operational safety. The key point about being in beta is front-loaded, and the sentence about current matching with ask_pipeworx prevents confusion about experimental status.

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 provides enough context for an agent to decide when and how to use the tool: it is a beta version of ask_pipeworx, currently matches it exactly, and arguments and response shape are the same. It does not describe the response shape directly, but explicitly references the stable sibling, which is reasonable for a beta twin. Slightly more detail about output or error behavior would make it fully self-contained.

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?

The schema has 100% coverage, documenting all parameters and aliases, so the description is not required to explain parameters in detail. The description only says 'same arguments' without adding parameter-specific meaning. This aligns with the baseline for high schema coverage.

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 a beta version of ask_pipeworx and calls it a universal router with the same tools, arguments, and response shape. It distinguishes itself from ask_pipeworx by emphasizing candidate routing improvements, which differentiates it from the sibling. It is not perfectly standalone, since it relies on knowing what ask_pipeworx is, but it is unambiguous and useful.

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 the newest routing is wanted, providing a clear selection condition and naming the relevant sibling. It does not give explicit 'when not to use' guidance or mention the grounded variant as an alternative, so it stops short of full coverage.

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