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chand1012

Polymarket US MCP server

by chand1012

Confirm Quote

confirm_quote
Destructive

Confirms an accepted quote during last look to finalize a live Polymarket trade and update real account state.

Instructions

LIVE ACCOUNT ACTION: Confirms an accepted quote during last look. This operation may affect real funds or account state.

Input Schema

NameRequiredDescriptionDefault
bodyYes
rfqIdYes
quoteIdYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. First observedv0.1.0

TDQS

C2.7/5.0
Behavior3/5

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

The annotations already declare destructiveHint=true, readOnlyHint=false, and idempotentHint=false. The description reinforces this with 'LIVE ACCOUNT ACTION' and 'may affect real funds', which is useful emphasis but largely restates the destructive hint. It does not explain what 'last look' means, what state changes on confirm, or whether the action is reversible.

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

Conciseness4/5

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

Two short sentences with the risk warning front-loaded in capitals, so the agent sees significance immediately. The wording is efficient, though the undefined term 'last look' consumes space without conveying actionable information.

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

Completeness2/5

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

This is a destructive, open-world, non-idempotent mutation on a live account with an undocumented nested body object and no output schema. The definition supplies almost none of what an agent needs to call it safely: no body contract, no response shape, no failure conditions.

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

Parameters1/5

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

Schema description coverage is 0% for three required parameters, including a nested free-form 'body' object, so the description carries the full burden and provides nothing. Nothing explains what rfqId and quoteId identify, or what fields 'body' must contain.

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?

The description states a specific verb and resource: 'Confirms an accepted quote during last look.' That is clearly distinct from create_quote, get_quotes, and delete_quote. It is less clearly distinguished from accept_quote, which sits in the same family and is never mentioned.

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 only usage context given is 'during last look', which is unexplained domain jargon. There is no guidance on when to confirm versus accept_quote, what prerequisite state the quote must be in, or what happens if the last look window has passed.

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