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

Annotations already declare readOnly, idempotent, non-destructive, and closed-world behavior, so the safety profile is covered. The description adds the genuinely new fact that no account is required, but says nothing about what a verification outcome looks like or how invalid/expired/revoked credentials are reported.

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 sentence with no filler; the core action is front-loaded and the two lookup modes and no-account condition follow compactly. Nothing is wasted.

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 verification tool with no output schema, an agent would benefit from knowing what the verification result conveys and whether both parameters may be combined. The definition covers the invocation basics but leaves result interpretation unaddressed.

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?

Schema coverage is 100%, and the schema itself documents that either 'target' or 'credential_id' may be supplied. The description only restates that either/or relationship without adding format, precedence, or fallback semantics, so 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?

Names a specific verb ('verify') and a specific resource ('Bastion posture credential'), plus the two lookup modes (target domain or credential id). It also implicitly distinguishes itself from sibling verification tools by scoping to Bastion posture credentials, though it does not name those siblings explicitly.

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 phrase 'without an account' and 'publicly' imply this is the unauthenticated verification path, which is useful context for choosing it. However, there is no explicit guidance on when to prefer this over siblings like verify_anchor or verify_mandate, nor any statement about what to do if both lookup parameters are supplied.

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