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

The annotations already indicate a read-only, idempotent, non-destructive operation, so the bar for description value is lower. The description adds genuinely useful behavioral context beyond those annotations: it is a live experimental edge router, candidate improvements are enabled whenever under test, none are currently active, and it is a full working router rather than a partial fallback. It clearly explains the current state and potential future variation without contradicting the annotations.

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 somewhat detailed, listing 5,718 tools and the 2026-07-26 retirement date, but every sentence contributes to the core point that this is a live beta clone of ask_pipeworx. It is front-loaded with the essential identity and then supplements with current status and usage guidance. A slightly shorter version would be possible, but the structure is efficient and purposeful.

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 that the tool is a beta variant of a sibling, the description adequately covers the current state, the relationship to ask_pipeworx, and the fact that it is fully functional. Since there is no output schema, the callback to ask_pipeworx's same response shape provides enough return-value guidance. The description could mention what kind of questions the router handles, but the universal-router framing makes that reasonably inferable.

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 the parameters and their aliases. The description does not add per-parameter semantic detail, only the general statement that it uses the same arguments as ask_pipeworx, which is useful context but not a substitute for parameter-level meaning.

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 names the resource (ask_pipeworx) and the verb (ask) while making clear this is the beta variant of the same universal router. It identifies the tool as a full working router with identical tools, arguments, and response shape, which distinguishes it from the stable ask_pipeworx and ask_pipeworx_grounded siblings. It could be more explicit about what the question parameter is used for, but the core purpose is clear.

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 tells the agent to use it exactly like ask_pipeworx when wanting the newest routing, and explains that the current behavior matches the stable router exactly because no candidate is active. This gives a clear condition for choosing it over the stable sibling, though it does not explicitly say when to avoid using it.

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