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

Beyond the annotations, the description discloses that the tool is an experimental edge with candidate routing improvements enabled live, that it currently has no active candidate, and that it is a full working router rather than a fallback stub. This gives useful behavioral context above what readOnlyHint and idempotentHint already signal.

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 compact and front-loaded, immediately identifying the tool as a beta variant. Every sentence earns its place: identity, current status, usage guidance, comparison purpose, and reassurance that it is fully functional. The parenthetical date is slightly specific but supports the current-state claim.

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?

For a tool with only one meaningful required parameter, no output schema, and rich annotations, the description provides enough to invoke it correctly: what it is, how to use it, and how its behavior currently matches ask_pipeworx. It relies on the sibling tool for response-shape details, which is acceptable given the explicit 'same response shape' statement, but it does not fully describe possible variance when a candidate is active.

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%, with each parameter documented as an alias for question. The description adds that the tool accepts the same arguments as ask_pipeworx, which is useful confirmation, but it does not need to explain parameter semantics further because the schema already fully documents them.

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 states specifically that this is the beta version of ask_pipeworx: an identical universal router with the same 5,798 tools, same arguments, and same response shape. It clearly distinguishes itself from the stable ask_pipeworx and the experimental edge nature is explicit.

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 guidance: use it exactly like ask_pipeworx when you want the newest routing, and notes that results are compared against the stable router. It also states that currently no candidate is active, so it matches ask_pipeworx exactly. It implies but does not explicitly state when to prefer ask_pipeworx over this beta variant for stability reasons.

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