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

Beyond the annotations, the description openly discloses the experimental nature, that no candidate is currently active, that behavior currently matches ask_pipeworx exactly, and that outputs are used for comparison to decide merges. It also explicitly warns there is no fallback, giving the agent an accurate model of expected behavior.

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 longer than average but front-loads the critical identity and usage information. Every sentence contributes useful context, though some redundancy exists between 'identical universal router' and enumerating the same tools, arguments, and response shape.

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 is complete for an experimental routing tool: it covers behavior, current state, usage context, alternatives, and response shape via reference to ask_pipeworx. It does not fully stand alone because it depends on the sibling tool for detailed invocation and response semantics, but the explicit 'identical to ask_pipeworx' statement mitigates this.

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 each parameter already has a clear aliasing description. The description adds only 'same arguments' as a general statement, which does not meaningfully supplement the schema. Baseline 3 is appropriate because the schema carries the parameter documentation burden.

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 identifies the tool as a beta version of ask_pipeworx and as an identical universal router with the same 5,743 tools, arguments, and response shape, which makes the core action clear. It distinguishes itself from the stable sibling and defines its experimental role, though it relies on the sibling's name for the primary 'ask/route' verb.

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?

It explicitly says when to use this tool: 'Use it exactly like ask_pipeworx when you want the newest routing.' It also clarifies that results are compared against the stable router, implying the alternative, and states it has no fallback and is a full working router, removing ambiguity about whether it's a stub.

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