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

No annotations exist, so the description carries the full burden; it does disclose the returned fields and the 1-6 hour OpenTimestamps confirmation window, which is real behavioral context. But it omits freshness/caching of the status, whether authentication is required, and how "degraded" affects anchoring behavior.

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 dense sentence that front-loads the return payload and appends only the cadence caveat and endpoint equivalence. No filler clauses.

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 output schema and no annotations, the description still enumerates every returned field, which is what an agent needs. Only minor gaps remain (freshness, auth, error behavior).

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?

Zero parameters, so there are no semantics to explain and nothing to compensate for; 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?

Specific verb+resource: "Return Knox service status" plus an enumeration of exactly what comes back (status, total anchors, latest anchor timestamp, cadence). This clearly separates it from the mutation siblings (anchor_*, verify_*, get_descriptor, list_event_types), though no sibling is named 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?

No explicit when-to-use or when-not clause and no named alternatives. Usage is only implied by the health/status framing — an agent must infer this is the pre-flight check before calling anchor_event or verify_anchor.

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