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

No annotations are provided, so the description carries the behavioral disclosure burden. It clearly states 'Accepts no credentials, wallet IDs, signatures, transactions, or raw provider responses; it evaluates caller-supplied observations and does not run the provider tests itself,' which conveys the tool's safe, non-executing nature. It does not describe output behavior, but an output schema exists to cover that.

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?

The description is two dense sentences: the first states the core action and object, the second provides usage timing and input restrictions. Every sentence earns its place with no filler or redundancy.

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 tool with five required parameters, a nested observations schema, and an output schema, the description covers purpose, usage context, and input safety constraints well. It does not need to explain return values because an output schema exists; the only minor gap is not explicitly contrasting with the stateful sibling tool.

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% with meaningful descriptions for all five parameters, so the baseline is 3. The description adds value by emphasizing that observations are safe, standardized, caller-supplied, and that raw provider responses and credentials are rejected, which reinforces the profileId and observations constraints.

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 opens with a specific verb and resource: 'Evaluate safe standardized allow, deny, and error observations from an agent wallet or delegated signer.' It clearly distinguishes itself from siblings like stateful_wallet_policy_conformance by stating it evaluates caller-supplied observations and does not run provider tests itself.

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 description explicitly says 'Use this after running a bounded provider policy test matrix' and explains the analytical goal: distinguishing provider-policy enforcement from validation/generic failures and separating execution shape from allowlisting. It does not name alternative tools or provide when-not-to-use guidance, but the usage context is clear.

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