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

Annotations cover the safety/idempotency profile (readOnly=false, destructive=false, idempotent=true), and the description adds concrete constraints the annotations omit: 'Local software evidence only', a 4096-operation bound and a 65536-byte request cap. These limits materially affect how an agent should size and scope a call.

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?

Organized as Problem/Input/Result/Limits, front-loading the purpose and keeping each element to a clause. Very little waste, though the telegraphic phrasing is terse to the point of being cryptic in places.

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?

Output schema exists so return values need not be explained, and annotations carry the behavior profile; the description usefully adds limits and input shape. It still leaves the four required parameters undocumented, which is a notable gap for a tool with nested, fully-uncovered inputs.

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 description coverage is 0% and none of the four required top-level parameters (schema_version, request, idempotency_key, max_total_price) are documented. The description partially compensates by naming the request's inner fields (left counts, right counts, normalization, rules), but the envelope parameters and pricing/idempotency semantics remain unexplained.

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?

States a precise verb (compare) and resource (bounded provider results) with the mechanism (supplied normalization and difference rules), which is more specific than the title. It is separable from siblings like quantum_simulation_result_compare_v1 by the 'provider results' framing, though it does not explicitly name what it is not.

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 'Problem:' framing gives context on what it expects, but there is no statement of when to choose this over compare_quantum_circuits or quantum_simulation_result_compare_v1, and no prerequisites or when-not conditions. An agent must infer selection from the name alone.

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