esr_status

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

No annotations are provided, but the description adds behavioral context beyond a simple 'return status' by stating ESR's inactivity and refundability of historical penalties. This helps the agent understand the tool's relevance and limitations.

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 exceptionally concise with two sentences, no waste. It front-loads the purpose and adds critical context succinctly.

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?

Given the tool's simplicity (no parameters, no output schema need due to existence of output schema), the description is complete enough. It could briefly mention the output format, but the presence of an output schema compensates.

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 no parameters, and schema coverage is 100%. The description does not add parameter information, which is unnecessary here since there are none. Baseline score of 4 applies.

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 the tool returns the current status of UAE Economic Substance Regulations, with a specific verb and resource. It distinguishes itself from sibling tools by being the sole tool dedicated to ESR status.

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 provides explicit context that ESR is dead for periods after 31 Dec 2022 and historical penalties are refundable, guiding the agent to use this tool for historical inquiries. It does not mention alternative tools but offers sufficient usage context.

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