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

Annotations already provide readOnlyHint, idempotentHint, and destructiveHint, so the safety profile is covered. The description adds meaningful behavioral context: candidate routing improvements are enabled live when under test, no candidate is current, and it 'Falls back to nothing — this IS a full working router.' This prevents the misconception that the beta tag means it is incomplete.

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 four sentences, front-loaded with the beta identity and identical-scope statement, then the current test state, usage instruction, and fallback guarantee. Every sentence adds distinct information and there is no redundant or filler content.

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?

Despite having no output schema, the description fully covers what the tool is, what it does, its current runtime state, and how to use it. Combined with the detailed annotations and the sibling list, an agent has all necessary context to select and invoke this tool correctly. No critical information is missing.

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?

The input schema has 100% description coverage, with each parameter documented as an alias for 'question,' so the baseline is 3. The description adds the cross-tool statement 'same arguments' as ask_pipeworx, which tells the agent that argument semantics are identical to the stable sibling and that no special beta-specific parameter handling is needed.

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, a universal router with the same 5,798 tools, arguments, and response shape. It distinguishes itself from the stable ask_pipeworx by its experimental routing candidates, so an agent can tell exactly what the tool is and how it relates to its sibling.

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,' which provides a direct usage condition and points to the stable alternative. It does not enumerate when not to use it, but the beta and experimental-edge framing strongly implies caution for production or stability-sensitive tasks.

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