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

Annotations already declare read-only, open-world, idempotent, and non-destructive behavior. The description adds meaningfully beyond those: it may change live when a routing candidate is under test, currently no candidate is active, and it is a full working router with no fallback to nothing. This accurately discloses volatile experimental 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?

Four sentences, each earning its place: identity, current beta status, usage instruction, and fallback reassurance. It is slightly repetitive about matching ask_pipeworx, but the size and front-loading are appropriate.

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 universal-router tool with no output schema, the description is sufficient by anchoring response shape to ask_pipeworx and giving the current state and usage instruction. It doesn't describe the response format in its own words, but referring to the stable sibling's shape is a complete-enough contract.

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%, so the schema already defines all aliases and the main question field. The description only says 'same arguments' and adds no behavioral or format detail per parameter, which matches the baseline for a fully covered schema.

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 anchors to ask_pipeworx and identifies the tool as the experimental beta variant of a universal router, including the same 5,743 tools, arguments, and response shape. It clearly states what it is and distinguishes it from the stable ask_pipeworx sibling.

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 gives an explicit use condition: 'Use it exactly like ask_pipeworx when you want the newest routing.' It also clarifies current state (no active candidate, matches ask_pipeworx exactly). It doesn't explicitly say when not to use it, though 'beta' and 'experimental edge' imply avoiding it for stability-sensitive use.

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