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CoinRithm

CoinRithm/coinrithm-agent-trading

Official

Get positions

get_positions
Read-only

List open and historical positions for futures or prediction market venues. Use the asOf cursor to poll only changed positions, including worker-triggered events.

Instructions

List open + historical positions for a venue. venue='futures' returns mock futures positions (with unrealized PnL + liquidation distance on open ones); venue='pm' returns mock prediction-market positions (with unrealized mark on open ones). Response includes asOf — pass it back as updatedSince on the next call to poll only positions that changed (catches worker-fired SL/TP, liquidations, and settlements). Paper trading only — virtual funds (50,000 mUSD). Not financial advice. Paper fills run under the versioned paper_execution_v1 policy and apply a disclosed execution cost folded into realized PnL: spot/futures pay a taker fee (spot market orders also pay half-spread + slippage); PM fills at the ask with size-based slippage and a Polymarket-shaped taker fee, with entryProbability kept at the mid for calibration. See the executionModel in quote/trade results — a rehearsal cost, not an exchange fill guarantee.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
venueYesWhich venue's positions to list.
agentTraceNoOptional private trace metadata stored in the caller's ledger.
updatedSinceNoISO 8601 cursor: only positions whose row changed since this instant. Pass the previous response's asOf back here.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
okYesTrue when CoinRithm returned a successful 2xx response.
bodyNoParsed CoinRithm response body, or raw text when the response is not JSON.
httpStatusYesHTTP status returned by CoinRithm, or 0 for network errors.
ledgerStatusNoLedger write status header returned by CoinRithm, when present.
ledgerEventIdNoPrivate AgentActionEvent id returned by /api/agent/*, when present.
Behavior5/5

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

Annotations declare readOnlyHint=true, openWorldHint=true, destructiveHint=false. The description adds significant behavioral context: mock data behavior, execution costs, versioned policy, and the asOf polling mechanism—all beyond what annotations provide. No contradiction.

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

Conciseness3/5

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

The description is informative but verbose, especially in the execution model details. While front-loaded with the main purpose, the latter part could be streamlined or moved to documentation. Still, it earns its place for completeness.

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

Completeness5/5

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

Given the output schema exists, the description covers all needed context: mock vs real behavior, polling with updatedSince, paper trading limitations, and execution cost model. Fully sufficient for an agent to use correctly.

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?

Schema coverage is 100% with descriptions for each parameter, but the description adds meaningful context: explains venue values, the purpose of updatedSince (pass asOf back), and agentTrace as optional trace metadata. This supplements the schema effectively.

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 clearly states it lists open + historical positions for a venue, distinguishing between 'futures' (with unrealized PnL + liquidation distance) and 'pm' (with unrealized mark). It uses specific verb+resource and differentiates from sibling tools like close_futures_position or open_futures_position.

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?

Provides clear context on when to use (list positions per venue) and how to poll with updatedSince. Does not explicitly state when not to use, but the context and sibling tool list imply this is for reading only, which is sufficient for an agent.

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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