CoinRithm Agent Trading

Get market context

get_market_context

Read-only

Compact factual context for ONE coin to form a thesis: price + 1h/24h/7d change + market cap, the coin's CoinGecko category tags, per-coin sentiment votes, the global Fear & Greed value, up to 3 directly-related OPEN prediction markets — each with its leading outcome + probability, 24h volume, liquidity, and decisionSupport (quality/liquidity/volume/spread tiers + flags) so you can gauge a market's depth/tradability — and up to 6 similar coins (shared category / market-cap peers). Facts only — no generated thesis. Call resolve_symbol first to get the coinId. 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

Name	Required	Description	Default
`coinId`	Yes	Coin UCID (e.g. "1" = BTC). Use resolve_symbol to find it.
`agentTrace`	No	Optional private trace metadata stored in the caller's ledger.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`ok`	Yes
`body`	No
`httpStatus`	Yes
`ledgerStatus`	No
`ledgerEventId`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed5 schema fields changedSep 29, 2026

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."

Changed3 schema fields changedJun 12, 2026

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"
+  ]
+}

Changed1 schema field changedJun 10, 2026

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"
+}

First observedJun 10, 2026

TDQS

A4.1/5.0

Behavior4/5

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

Annotations already declare readOnlyHint=true, destructiveHint=false, openWorldHint=true, so safety is covered. The description adds real context: it is paper-trading only (virtual mUSD), fills follow paper_execution_v1 with a disclosed execution cost, and decisionSupport exposes quality/liquidity/volume/spread tiers. No contradiction with the read-only annotations.

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?

Front-loaded with the core purpose and dense with useful detail, but it is a single long run-on sentence with mixed concerns (return fields, execution model, prerequisites) that would read cleaner if split.

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?

Covers scope, prerequisite, and platform constraints; an output schema exists so return values needn't be re-explained. It is complete enough to call correctly, though enumerating output fields is slightly redundant against the output schema.

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

Parameters3/5

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

Schema coverage is 100% and the schema already documents both coinId ('Use resolve_symbol to find it') and the agentTrace fields. The description's 'Call resolve_symbol first' merely restates what the schema says, and it is silent on the agentTrace object, so it adds no meaning beyond the structured fields.

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+resource with explicit scope ('Compact factual context for ONE coin to form a thesis') and enumerates exactly what it returns: price, changes, market cap, category tags, sentiment votes, Fear & Greed, up to 3 related prediction markets, and up to 6 similar coins. An agent can distinguish it from get_candles, get_crypto_movers, and pm_data_* without opening any 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?

Gives the key prerequisite ('Call resolve_symbol first to get the coinId') and the intent ('to form a thesis', 'Facts only — no generated thesis'). It does not name competing alternatives (e.g., why use this over pm_data_event + get_candles separately), so it stops short of explicit when/when-not routing.

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 tools Inspect

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