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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false, and openWorldHint=false, so the safety profile is fully covered. The description adds genuine value by stating the check is permissionless ('anyone can') and that it detects editing and back-dating specifically. It stops short of saying whether the result is a pass/fail verdict or a full chain listing, which matters with no output schema.

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?

One sentence with no padding, but it front-loads the least useful clause ('Anyone can check') and spends its only content on what is verified rather than what the tool returns. Brevity here reads as under-specification rather than economy.

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 parameters and no output schema, the description carries the full burden of explaining the result — is it a boolean integrity verdict, a chain of records, or a failure report? It also never scopes which records or chain are being verified. For a zero-arg tool that an agent must call blind, this leaves real gaps.

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. There is nothing for the description to disambiguate at the argument level.

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 an action (check) and a property being verified (no record was edited or back-dated), which conveys tamper-evidence verification. But it never says what 'the chain' is, what records are covered, or how this differs from siblings like get_verified_record, verified_board, or survivorship_audit. An agent can guess the intent but cannot confidently separate it from adjacent verification tools.

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 trigger, no prerequisite, and no named alternative. 'Anyone can check' hints at permissionless access but gives no condition that selects this tool over get_verified_record or verified_board. The agent is left to infer invocation context entirely.

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