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explain_external_marketplace_boundaries

Read-onlyIdempotent

Clarifies the no-execution, no-spend, no-settlement, and no-trust-mutation boundaries for safe external marketplace search.

Instructions

Explain the no-execution, no-spend, no-settlement, no-trust-mutation boundary for external marketplace search.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior3/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, idempotentHint=true. The description adds that the tool explains a boundary, which is consistent with read-only behavior. However, it does not disclose return format or any side effects beyond what annotations imply. Since annotations carry the safety burden, a 3 is appropriate.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, focused sentence that starts with the verb 'Explain'. It contains no extraneous words and clearly communicates the tool's purpose.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool has no parameters, no output schema, and simple read-only nature, the description is mostly complete. However, it assumes familiarity with the boundary terms, which may require external context. A slight improvement would be to clarify the output format or provide an example.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters4/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

There are no parameters, so the baseline is 4. The description does not need to add parameter info.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description uses the verb 'Explain' and specifies a concrete resource: the 'no-execution, no-spend, no-settlement, no-trust-mutation boundary' for external marketplace search. It distinguishes from siblings like search_external_marketplaces or inspect_external_supply_candidate by focusing on explanation rather than execution or inspection.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description provides no guidance on when to use this tool versus alternatives. It does not mention prerequisites, when not to use, or suggest other tools for related tasks.

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

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