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

Adds real context beyond the annotations: it states the change is reversible and the rule is preserved rather than deleted, and it names the underlying endpoint POST /pullzone/{pullZoneId}/edgerules/{edgeRuleId}/setEdgeRuleEnabled. The 'reversible' framing sits in mild tension with destructiveHint=true, but a state toggle is still a config-modifying write, so this is a useful nuance rather than a contradiction.

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 dense sentences, front-loaded with the write classification and core action, followed by prerequisite and endpoint. No filler, nothing repeated from the schema.

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 three-parameter toggle with full schema coverage and annotations present, the description covers classification, reversibility, prerequisite lookup, and endpoint. The only omission is what the call returns, which is minor given no output schema is defined and the operation is a simple state change.

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%, so the baseline would be 3, but the description adds derivation info the schema lacks: where to obtain edge_rule_id (EdgeRules[].Guid from bunny_get_pull_zone). That is genuine added meaning for the one parameter an agent is most likely to get wrong.

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 ('Turn one edge rule on a pull zone on or off') with clear scope ('one'), plus a 'WRITE' category marker. No sibling tool touches edge rules, so the agent can identify the target operation unambiguously.

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?

Explicitly routes the agent to bunny_get_pull_zone for the required edge_rule_id GUID, which is the practical prerequisite for calling this tool. It does not give when-not-to-use conditions or name an alternative toggle path, but the retrieval prerequisite is the main guidance an agent needs.

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