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

Beyond readOnly/openWorld/idempotent annotations, the description discloses that candidate routing improvements may be live, that none is active now, that results are compared against the stable router, and that it is a full working router with no fallback. This is rich behavioral context that annotations alone would not provide.

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 a bit longer than minimal, but every sentence earns its place: it establishes identity, explains experimentation status, gives usage instructions, and resolves ambiguity about fallback. It is front-loaded with the core 'beta version of ask_pipeworx' identity.

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 simple single-required-parameter router with no output schema, the description provides the critical operational context: what it is, current state, how to use it, and safety profile. Missing details about the actual response shape are mitigated by stating it matches ask_pipeworx exactly, though that shape is not described.

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 the schema already documents the question parameter plus aliases. The description mentions 'same arguments' but adds no meaningful parameter-level semantics beyond what the schema already provides, 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?

The description states a specific subject and role: a beta version of ask_pipeworx that is an identical universal router with the same 5,908 tools, arguments, and response shape. It also distinguishes itself from the stable ask_pipeworx by noting experimental candidate routing, so an agent can tell them apart.

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 to use it exactly like ask_pipeworx when wanting the newest routing, and clarifies current behavior matches the stable router. It does not give explicit exclusionary guidance or compare against ask_pipeworx_grounded, but the primary use condition is clear.

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