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

Beyond the readOnly/openWorld/idempotent annotations, the description discloses that routing improvements may be live only when a candidate is under test, that no candidate is currently active, and that the last candidate was retired on a specific date. It also explains that the beta currently matches ask_pipeworx exactly, which prevents surprise about identical behavior. No annotation contradiction is present.

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 front-loaded with the core identity ('Beta version of ask_pipeworx') and immediately clarifies equivalence and scope. Every sentence earns its place: current candidate status, usage instruction, comparison purpose, and fallback reassurance. It is dense but not bloated, and highly scannable.

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 single-required-parameter router tool with no output schema, the description is unusually complete: it explains the beta state, current equivalence to the stable router, when to prefer it, and that it is a fully functional router. An agent has enough information to invoke it correctly without additional context.

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%, with all six aliases documented in the schema itself. The description adds only that the tool takes 'same arguments' as ask_pipeworx, which is helpful but not essential given the complete schema. This meets the baseline for schema-covered parameters.

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 identifies ask_pipeworx_beta as a beta version of ask_pipeworx, a universal router with the same 5,708 tools, arguments, and response shape. It distinguishes itself from the stable ask_pipeworx by stating this version carries candidate routing improvements when under test. The purpose is specific and actionable, not a tautology.

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 to use it exactly like ask_pipeworx when you want the newest routing, and clarifies that results are compared against the stable router to decide what merges. It also prevents misuse by stating it 'falls back to nothing' and is a full working router, not a degraded stub. This gives clear guidance for selecting this tool over its stable sibling.

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