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

While annotations already declare readOnlyHint, openWorldHint, idempotentHint, and destructiveHint=false, the description adds essential behavioral context: the tool is experimental, its routing may change live when a candidate is under test, and currently no candidate is active so it exactly matches ask_pipeworx. It transparently discloses the 'falls back to nothing' nature, meaning it is not a wrapper but a full router. No contradiction with annotations exists.

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 moderately lengthy but information-dense, covering the beta status, current active state, usage guidance, and fallback behavior. It is front-loaded with the core identity ('Beta version of ask_pipeworx'), and each sentence contributes meaningful context. Minor redundancy exists between 'identical' and 'currently matches ask_pipeworx exactly,' but it does not detract significantly.

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?

The description is complete for an experimental variant of a known tool. It gives the current state (no active candidate), explains the comparison-to-stable behavior, confirms identical response shape, and clarifies there is no fallback. While the output schema is absent, the description leverages the sibling ask_pipeworx for return format expectations, which is sufficient given the context signals.

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 parameters clearly documented as aliases for the question field. The description does not add further parameter-level detail, but none is needed since the schema already fully explains the argument semantics. This meets the baseline for full schema coverage.

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 the beta version of ask_pipeworx, an identical universal router with the same 5,798 tools and response shape, but with experimental routing improvements. It distinguishes itself from the stable ask_pipeworx and the sibling ask_pipeworx_grounded by framing itself as the experimental edge. A specific verb and resource are present: asking a question routed to thousands of 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?

The description explicitly says 'Use it exactly like ask_pipeworx when you want the newest routing' and contrasts it with the stable router. It tells the agent when to select this beta variant and confirms it is a full working router with no fallback, so there is no ambiguity about capability. It also notes results are compared against the stable router to decide merges, which frames its purpose in the tool ecosystem.

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