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

With no annotations provided, the description carries the burden. It discloses that the tool auto-flags deviations and mismatches, indicating it's a read-only analysis tool that produces flags. It doesn't describe output format or potential side effects, but as a non-mutating integrity check, this is adequate. Could be more detailed about return values.

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 two sentences, front-loaded with the tool's purpose ('RLUSD multi-source integrity check'), followed by specific sources and outputs. Every word earns its place with no redundancy or fluff.

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 zero-parameter tool with no output schema, the description is fairly complete: it explains the input sources, the comparison, and the auto-flagging behavior. It could mention what the agent receives as a result (e.g., a report, a status), but this is a minor gap given the tool's straightforward nature.

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 tool has zero parameters, so the description needs no parameter details. The baseline for 0 params is 4, and the description appropriately focuses on functionality rather than parameters.

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 identifies the tool as an RLUSD multi-source integrity check, specifying exactly what it cross-references (DeFiLlama price, XRPL on-chain supply, XRPL DEX liquidity) and what it auto-flags (peg deviations and supply mismatches). This distinguishes it from sibling RLUSD tools like supply or anchor 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 implies usage context: it's a cross-referencing integrity check for detecting mismatches across multiple sources. It gives clear context but doesn't explicitly mention alternatives or exclusion criteria, though the multi-source nature inherently sets it apart from single-source siblings.

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