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List marketplace orders

market_list

Browse open fixed-price P2P trade orders (digital goods, physical items) held in on-chain escrow. Public — no key required.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Added

TDQS

B3.4/5.0
Behavior3/5

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

No annotations are provided, so the description carries the full burden. It usefully discloses the auth profile (public, no key), that these are escrow-held orders, and that only 'open' orders are returned. It does not disclose pagination behavior, ordering of results, or what happens at the 50-item cap.

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?

Two tight sentences with zero filler; the resource scope is front-loaded and the auth note follows as a short qualifier. Every clause earns its place.

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?

For a public read-only list tool with one optional parameter and no output schema, the description covers what is returned (open escrow orders) and the access model. Only pagination/ordering details are absent, which is a minor gap given the schema already bounds the limit.

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

Parameters2/5

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

Schema description coverage is 0% and the single 'limit' parameter is never mentioned in the description, so the description adds nothing about the 1-50 bound or whether it controls pagination. With one undocumented parameter, the description fails to compensate for the coverage gap.

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

Purpose4/5

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

Names a specific verb ('Browse') and a precisely scoped resource: open fixed-price P2P trade orders held in on-chain escrow, including the asset types involved. An agent can distinguish this from market_get (single order) and market_order (place an order) by the 'open orders' scope, though no sibling is named explicitly.

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

Usage Guidelines3/5

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

The 'Public — no key required' clause tells the agent it can call this without credentials, which is a genuine usage cue. However, there is no when-to-use/when-not guidance relative to market_get, my_escrows, or list_bounties, leaving the choice among market tools to inference.

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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