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

Annotations already declare readOnlyHint=true, openWorldHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds valuable behavioral context beyond annotations: it discloses that this is an experimental edge with candidate routing improvements that may change behavior live, that it currently matches the stable router exactly, and that it falls back to nothing (it is a full working router). This is meaningful transparency about the experimental nature and current equivalence.

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 single dense paragraph that front-loads the key facts: beta status, identical to ask_pipeworx, current state, and usage instruction. It is somewhat long but every sentence earns its place by conveying the experimental status, the current equivalence, and the routing comparison purpose. The structure could be slightly improved with clearer separation, but it is efficient.

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 with no output schema and a single required string parameter, the description is largely complete. It explains what the tool does, how it differs from the stable sibling, its current state, and that it is a full working router. The only minor gap is that it doesn't describe the response shape, but since it explicitly states the response shape is identical to ask_pipeworx, an agent can infer it from the sibling. This is adequate for the tool's complexity.

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 description coverage is 100%, so the schema already documents all 8 parameters, including the primary 'question' parameter and its 7 aliases. The description adds no parameter-specific semantics beyond what the schema provides, but it doesn't need to since the schema is complete. 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 clearly states this is a beta version of ask_pipeworx, an identical universal router with the same 6,426 tools, arguments, and response shape. It explicitly distinguishes itself from the stable ask_pipeworx by noting candidate routing improvements may be active, and it names the sibling ask_pipeworx directly. The verb 'ask' plus the resource 'pipeworx beta' is specific and unambiguous.

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 explicitly says 'Use it exactly like ask_pipeworx when you want the newest routing' and explains that results are compared against the stable router to decide what merges. It also clarifies the current state (no candidate active, matches ask_pipeworx exactly), giving the agent a clear decision rule for when to select this tool over the stable sibling.

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