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

Annotations already establish readOnlyHint=true, so safety is covered. The description adds real value beyond the annotations by explaining the underlying condition (network returning funds) and the operational meaning of a true value, though it leaves the return shape (bare boolean vs. object) and the significance of idempotentHint=false unstated.

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?

Three short sentences, front-loaded with the core answer. The final sentence partially restates the first, adding minor redundancy, but the whole block is otherwise tight and waste-free.

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 trivial, parameterless status check with no output schema, the description supplies the semantics an agent needs to interpret the result. It could be slightly more complete by stating the return type explicitly, but nothing critical 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 tool takes no parameters, so there is nothing for the description to disambiguate; baseline for a zero-parameter tool is 4. No parameter-level gaps exist.

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?

States a specific verb and resource ("Returns whether the chain is in Ragnarok") and defines the state precisely as emergency shutdown mode, so an agent immediately knows what question this tool answers. It does not explicitly differentiate from siblings, but no sibling covers Ragnarok, so the risk of confusion is low.

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 explains what Ragnarok is but never says when to call this tool, what it should be paired with (e.g. before prepare_swap or quote_swap), or when it can be ignored. An agent must infer the usage context entirely.

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