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

Annotations already declare readOnlyHint=true and openWorldHint=false, so safety is covered. The description adds real value by making clear this is purely informational reporting (county checks, run statuses/counts, in-progress jobs, schedule), which resolves the ambiguity created by the mutation-sounding name. It says nothing about scope (all counties or a subset) or recency limits of the reported runs.

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?

A single front-loaded sentence with a colon-delimited list of report contents; no filler. It is slightly list-like and lacks a leading verb, but every clause maps to something the agent will receive.

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?

With no input parameters and no output schema, the description carries the burden of describing return contents, and it does so across four distinct data categories. The only gap is that it does not say whether results are scoped to all counties or a current job, which for a simple status endpoint is minor.

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, so the baseline is 4. The description correctly implies a no-argument, whole-dataset report, and there are no parameter semantics that need explaining.

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 enumerates the specific content reported (per-county last-checked timestamps, recent update runs with status and counts, in-progress work, schedule), which makes the resource concrete. But it never states a verb ("returns", "reports") and the name 'update_status' reads like a mutation, so the agent must infer that this is a read-only freshness report. It also does not distinguish itself from siblings like recent_changes.

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 explicit when-to-use guidance and no alternative named. The agent can infer it should call this to check data freshness before trusting results, but nothing states that, and nothing rules out overlap with recent_changes or refresh_property.

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