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

Annotations already cover the safety profile (readOnly, idempotent, non-destructive, closed-world), so the description's added value is the verdict semantics (INTERIM = single verified result, pending deep review) and the cost signal "Free" — neither of which appears in structured fields. It does not mention rate limits or freshness, but the annotation coverage lowers the bar.

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 core resource and then lists outputs; nothing is wasted. The redundant "Free" (also in the title) is the only minor excess.

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?

An output schema exists, so the description needn't explain return values, yet it briefly previews them; annotations cover safety and idempotency, and the verdict vocabulary is defined inline. An agent has everything needed to call this correctly.

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?

With a single parameter at 100% schema description coverage, the schema already tells the agent to pass an exact service name as listed by search_services. The description adds no additional parameter syntax or format guidance, so the baseline 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?

The description names a specific verb and resource ("Full receipts-verified review of one agent-economy service") and even enumerates the verdict taxonomy (BUY/CAUTION/AVOID/INTERIM) and returned data, so the agent knows exactly what it gets. It does not explicitly contrast itself with get_bundle or search_services, so it falls short of full sibling differentiation.

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?

There is no when-to-use or when-not-to-use guidance in the description; it never says to call search_services first or to use get_bundle instead for multi-service needs. The only workflow hint lives in the schema's parameter description, not in the tool description itself.

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