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

Annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint false, so the safety profile is covered. The description adds useful behavioral context: that routing improvements may be enabled live during tests, that it currently matches ask_pipeworx exactly, and that it's an experimental edge. However, it does not detail response shape or what happens when a candidate is active, slightly limiting transparency.

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 the key info (beta, identical router, currently matches stable), and every sentence earns its place: candidate status, usage guidance, and fallback behavior are all included without redundancy. It is concise but complete.

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 simple schema (one required, aliased question parameter) and rich annotations, the description is largely complete. It explains the beta relationship, current equivalence to ask_pipeworx, and how results are used. It does not specify what the response shape looks like, but without an output schema and with a universal router, that is a minor gap; the tool is otherwise fully usable.

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 description notes that it takes the same arguments as ask_pipeworx, so the schema carries the parameter semantics. The description adds no new parameter-level detail beyond confirming aliases, so a baseline of 3 is appropriate.

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 explicitly states that ask_pipeworx_beta is a beta version of ask_pipeworx with identical tooling but candidate routing improvements, and clarifies that no candidate is currently active, making it behaviorally identical to ask_pipeworx right now. This clearly differentiates it from ask_pipeworx while specifying exactly what it does.

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 explicit usage guidance: use it like ask_pipeworx when you want the newest routing, and explains that results are compared against the stable router to decide merges. It also clarifies that it falls back to nothing and is a full working router, so there is no ambiguity about when to invoke it.

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