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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is known. The description adds behavioral context beyond that: it's a full working router with no fallback, and it may have candidate routing improvements enabled. It also states the current state (no active candidate) which is transparent about behavior.

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 slightly verbose but well-structured. It front-loads the core purpose (beta of ask_pipeworx) and then adds usage and behavior details. Each sentence adds value, though it could be tightened. No wasted words.

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 router with no output schema, the description explains the tool's role, its current state (no active candidate), and that it matches ask_pipeworx exactly. It also clarifies that it is a full router, not a fallback. This is sufficient for an agent to call it correctly.

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 coverage is 100% with descriptions for all parameters, including aliases. The description mentions 'same arguments' but does not add any additional parameter semantics beyond the schema. Baseline of 3 is appropriate since the schema already documents everything.

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 it is a beta version of ask_pipeworx, a universal router with 5,892 tools, and explicitly differentiates it from the stable version by mentioning candidate routing improvements. It names the sibling ask_pipeworx and explains the experimental edge, making the purpose unambiguous.

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 tells the agent to use it exactly like ask_pipeworx when wanting the newest routing, and notes that results are compared against the stable router. It does not explicitly state when NOT to use it, but the context of 'beta' and 'experimental edge' implies a testing scenario. Clear enough for most agents.

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