register_info

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

Annotations declare readOnlyHint=true and openWorldHint=false, covering the safety profile. The description adds domain context—that the data concerns dates/sources for the sponsor register and salary thresholds—but does not describe return format, permissions, or other behavioral traits beyond the annotations.

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 a single compact sentence with no filler. It front-loads the returned data categories, though the missing verb makes the structure slightly less scannable.

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, read-only metadata tool with annotations and no output schema, the description conveys the essential return content (dates and sources). It could specify the return shape more explicitly, but it is largely complete for invocation.

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 zero parameters and schema coverage is 100% (empty object). With no parameters to document, the description does not need to add parameter semantics; baseline 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 names the information returned (dates and sources of loaded data) and the data domains (sponsor register, salary thresholds), but it does not use a verb to say what action the tool performs. It is more specific than a tautology but remains a noun phrase that leaves the operation implicit.

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?

No when-to-use guidance is provided, and the sibling tools (check_sponsor, search_sponsors, check_salary) are never mentioned as alternatives or complements. The agent must infer that this is for metadata inspection rather than lookups.

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