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

Annotations already declare readOnly/openWorld/idempotent/non-destructive; the description adds meaningful context by stating this is a full working router, not a fallback, that candidate improvements may be live, and that results are compared against the stable router. No contradiction with annotations.

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?

Three sentences are front-loaded with the core definition and sibling relation, then current status, usage direction, and a clarification. Slightly repetitive ('identical...matches exactly' and 'full working router') but each sentence serves a distinct purpose.

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 complex router with no output schema, the description covers current active state, usage equivalence, and the fact that it is a complete working tool. It references the same response shape as ask_pipeworx, which is a useful pointer, though it doesn't spell out the return format itself.

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% and all six parameters (question plus five aliases) are documented in the schema. The description only says 'same arguments' and adds no syntax or format detail beyond the schema, so baseline 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?

Describes the tool as the beta variant of ask_pipeworx, an identical universal router over 5,798 tools with the same arguments and response shape. This clearly distinguishes it from the stable ask_pipeworx sibling while explaining what it does; the only weakness is relying on the reader knowing what ask_pipeworx itself 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?

Explicitly instructs to use it exactly like ask_pipeworx when you want the newest routing, and explains the current experimental state (no active candidate). It doesn't list exclusion cases or mention ask_pipeworx_grounded, but it gives a clear selection condition relative to the stable sibling.

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