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

The description discloses that it is a live router with candidate improvements that change over time, and that currently no candidate is active so it matches ask_pipeworx exactly. It also clarifies 'Falls back to nothing — this IS a full working router', which is important behavioral context. This goes beyond the annotations (read-only, idempotent, open-world) and does not contradict them.

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 reasonably concise and front-loaded: it opens with the beta status, then explains similarity, current state, usage, and closure. Each sentence contributes critical information (beta, identical, current state, usage, fallback). While a bit lengthy, there is no waste. The structure leads with the most important differentiator.

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?

Given the tool has an output schema (referenced as 'same response shape' but not detailed), the description does not need to explain return values. It covers the tool's role, current state, relationship to siblings, and fallback behavior. It is complete for a router whose behavior is identical to a known sibling, and it is clear the agent can rely on the same expectations as ask_pipeworx.

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% and all parameters are documented aliases for 'question'. The description mentions 'same arguments' but does not add any additional semantics beyond the schema. Since the schema already fully explains the parameters, baseline 3 is appropriate, and no extra value is provided here.

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 explicitly states it is a beta version of ask_pipeworx, an identical universal router with 5,944 tools and the same arguments/response shape. It clearly distinguishes itself from siblings by being the experimental edge, and even notes the relationship to the stable ask_pipeworx. This is a specific verb+resource with clear differentiation from sibling tools.

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 instructs to 'Use it exactly like ask_pipeworx when you want the newest routing' and notes results are compared against the stable router. This provides clear context for when to choose this tool. It implies it might not be for critical use by calling it 'experimental edge', but does not explicitly list exclusions or alternatives beyond the stable router.

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