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

With no annotations, the description carries the full burden and does substantial work: it discloses ordering (newest first), the field set per row, provisional/dated status of figures, the three permit status values plus null semantics, and an explicit non-fabrication guarantee. It omits auth, rate limits, and pagination behavior beyond the schema's limit.

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?

Front-loaded with the resource and ordering, then row contents, then caveats. Sentences are short and mostly load-bearing, though the staccato 'Figures are sourced and dated. They may be provisional.' could be compressed.

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?

No output schema exists, so the description must describe return values, and it does: per-row old figure, new figure, issuer, source URL, and citation, plus permit status enumeration and null meaning. Missing only operational details like auth and pagination limits.

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?

Only one parameter and schema coverage is 100%, so the schema already documents 'limit' fully. The description adds no syntax or format detail for it; the baseline of 3 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?

States a specific resource and scope: confirmed permit-fee changes from /updates.json, newest first. It implicitly distinguishes itself from siblings like get_permit and get_provenance by describing change records, though it never names an alternative to route away ambiguity.

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?

There is no when-to-use vs when-to-use-an-alternative guidance and no mentioned alternative among the eight siblings. The citation instruction ('Cite the trail URL and the verifiedDate') is output-usage advice, not tool-selection guidance.

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