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 genuinely new behavioral context: the ledger is quantum-sealed with SHA3-512 and ML-DSA-87 + Ed25519 signatures, it is fused with the Privi Foundation chain, and the call is free — cost being a trait an agent cannot infer from annotations or 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?

A single dense sentence that front-loads the resource name and then lists return contents, with the billing note ('Free.') appended compactly. The stacked cryptographic detail (SHA3-512, ML-DSA-87 + Ed25519) is slightly heavy for a top-level status blurb but is informative rather than filler.

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, the description must carry the return-shape burden, and it does so by naming four distinct payload components an agent will receive. It does not describe response format, size, or freshness semantics, which leaves a small gap for a zero-parameter read.

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 and there is no parameter semantics to explain. The description correctly does not waste words on inputs.

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 the resource (Privi Quantum Ledger) and enumerates exactly what the status call surfaces: latest sealed block with algorithms, pending entries, fused foundation chain, and signing keys. It implicitly reads as a status/snapshot tool and is distinguishable from siblings like qledger_block (a specific block) or qledger_verify_chain (verification). It stops short of an explicit verb such as 'returns' or 'shows'.

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?

Use as a status/overview endpoint is implied by the name and content list, but there is no explicit when-to-use guidance, no statement of prerequisites, and no routing to alternatives such as qledger_block when a specific block is needed. The word 'latest' is the only comparative hint.

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