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CoinRithm Agent Trading

by com.coinrithm.mcp
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List open spot orders

list_open_orders
Read-only

List open (resting) spot orders. Omit coinId for ALL open orders across coins, or pass one to filter. Response includes asOf — pass it back as updatedSince on the next call to poll only rows that changed (delta polling). Paper trading only (virtual mUSD). Fills follow paper_execution_v1 with a disclosed execution cost; see executionModel in quote/trade results.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNoMax rows (1-200, default 100).
coinIdNoCoin UCID filter. Omit to list ALL open orders.
agentTraceNoOptional private trace metadata stored in the caller's ledger.
updatedSinceNoISO 8601 cursor: only orders whose row changed since this instant. Pass the previous response's asOf back here.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
okYes
bodyNo
httpStatusYes
ledgerStatusNo
ledgerEventIdNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed5 schema fields changed
    • removedOutput schema / properties / body / description
      Removed value: -"Parsed CoinRithm response body, or raw text when the response is not JSON."
    • removedOutput schema / properties / httpStatus / description
      Removed value: -"HTTP status returned by CoinRithm, or 0 for network errors."
    • removedOutput schema / properties / ledgerEventId / description
      Removed value: -"Private AgentActionEvent id returned by /api/agent/*, when present."
    • removedOutput schema / properties / ledgerStatus / description
      Removed value: -"Ledger write status header returned by CoinRithm, when present."
    • removedOutput schema / properties / ok / description
      Removed value: -"True when CoinRithm returned a successful 2xx response."
  2. Changed3 schema fields changed
    • addedInput schema / properties / agentTrace
      Added value: +{
+  "additionalProperties": false,
+  "description": "Optional private trace metadata stored in the caller's ledger.",
+  "properties": {
+    "confidence": {
+      "description": "Optional confidence score from 0 to 1.",
+      "maximum": 1,
+      "minimum": 0,
+      "type": "number"
+    },
+    "decisionId": {
+      "description": "Agent decision id for quote/write attribution.",
+      "minLength": 1,
+      "type": "string"
+    },
+    "rationaleSummary": {
+      "description": "Optional concise rationale summary. Do not include chain-of-thought, secrets, or account identity.",
+      "maxLength": 1200,
+      "minLength": 1,
+      "type": "string"
+    },
+    "runId": {
+      "description": "Agent run id for grouping.",
+      "minLength": 1,
+      "type": "string"
+    },
+    "strategyLabel": {
+      "description": "Short strategy label, self-reported by the caller.",
+      "maxLength": 120,
+      "minLength": 1,
+      "type": "string"
+    }
+  },
+  "type": "object"
+}
    • addedOutput schema / properties / ledgerEventId
      Added value: +{
+  "description": "Private AgentActionEvent id returned by /api/agent/*, when present.",
+  "type": [
+    "string",
+    "null"
+  ]
+}
    • addedOutput schema / properties / ledgerStatus
      Added value: +{
+  "description": "Ledger write status header returned by CoinRithm, when present.",
+  "type": [
+    "string",
+    "null"
+  ]
+}
  3. Changed3 schema fields changed
    • changedInput schema / properties / coinId / description
      Previous value: -"Coin UCID to list open orders for."New value: +"Coin UCID filter. Omit to list ALL open orders."
    • addedInput schema / properties / updatedSince
      Added value: +{
+  "description": "ISO 8601 cursor: only orders whose row changed since this instant. Pass the previous response's asOf back here.",
+  "type": "string"
+}
    • removedInput schema / required
      Removed value: -[
-  "coinId"
-]
  4. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "body": {
+      "description": "Parsed CoinRithm response body, or raw text when the response is not JSON."
+    },
+    "httpStatus": {
+      "description": "HTTP status returned by CoinRithm, or 0 for network errors.",
+      "type": "integer"
+    },
+    "ok": {
+      "description": "True when CoinRithm returned a successful 2xx response.",
+      "type": "boolean"
+    }
+  },
+  "required": [
+    "httpStatus",
+    "ok"
+  ],
+  "type": "object"
+}
  5. First observed

TDQS

A4.7/5.0
Behavior5/5

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

Annotations already disclose readOnlyHint, openWorldHint, and destructiveHint=false, yet the description adds meaningful context beyond them: paper-trading-only with virtual mUSD, the asOf-to-updatedSince delta polling contract, and that fills follow paper_execution_v1 with a disclosed execution cost. These are exactly the traits an agent needs for a trading-environment read.

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?

Four tightly packed sentences, scoping constraint front-loaded, no filler. Every clause (coinId behavior, delta polling, paper-trading caveat, execution model pointer) carries distinct information an agent can act on.

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?

With a rich output schema present, the description correctly avoids explaining return values while covering the input behaviors that matter: filtering, delta polling, and the paper-trading/execution-cost caveat. Nothing needed to call this list tool correctly is missing.

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%, so the baseline is 3, but the description adds real cross-parameter meaning by tying the response's asOf to the next call's updatedSince as a polling loop and clarifying coinId's omit-vs-filter behavior. This slightly exceeds what the schema fields convey individually, though updatedSince semantics are partly restated.

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?

States a specific verb and resource ('List open (resting) spot orders'), which is immediately distinguishable from siblings like get_my_trades (fills), get_positions, and cancel_spot_order. The scope wording is precise enough that an agent can route correctly without opening the schema.

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?

Explains the operating condition for the coinId parameter (omit for all coins, pass one to filter) and the delta-polling pattern for updatedSince. It gives clear usage context but never names an alternative sibling tool (e.g., get_my_trades for executed fills) or states when not to use it.

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

All CoinRithm Agent Trading toolsInspect
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