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get_market_orderbook

Retrieve the live order book for any Predict.fun market – showing current bids and asks with prices and sizes. Use market ID or condition ID to get the current state, not historical trades.

Instructions

Get the live order book for a Predict.fun market — current bids and asks with prices and sizes. Requires PREDICT_API_KEY. Provide market_id (integer from Predict.fun API) or condition_id. Use this to see the current state of the market, not historical trades.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
condition_idNoThe conditionId (0x hex string) of the market — used to look up the numeric market_id from cache
market_idNoThe numeric market ID from Predict.fun API (e.g. 1187). More reliable than condition_id lookup.
Behavior3/5

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

No annotations provided. Description mentions key requirement but omits details like rate limits, caching, or error handling. Adequate but not thorough for a read operation.

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 concise sentences with front-loaded main action. No redundant information.

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

Completeness3/5

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

No output schema; description only gives high-level fields (bids, asks, prices, sizes). Lacks structural detail needed for complete understanding without schema.

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

Parameters5/5

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

Schema coverage is 100% and description adds context (condition_id lookup, market_id reliability). Provides meaningful guidance beyond schema.

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?

Clearly states the tool retrieves the live order book with bids/asks. Distinct from siblings like get_market_details or get_recent_activity.

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

Usage Guidelines4/5

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

Explicitly says use for current state, not history, and requires PREDICT_API_KEY. Lacks direct comparison to alternative tools but sets clear boundaries.

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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