whale-insights

narratives

Read-onlyIdempotent

Get top trending market narrative sectors — AI, RWA, DePIN, memecoins with momentum and top tokens (top 3 free) — Trending market narratives (e.g. AI, RWA, memecoins, DePIN) derived from CoinGecko Categories with their leading tokens. Free preview: top 3 narratives (3 tokens each); the full set requires a Weekly Alpha subscription. Cached ~30min.

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Output Schema

TableJSON Schema

Name	Required	Description	Default
`total`	No
`updatedAt`	No
`dataSource`	No
`narratives`	No
`attribution`	No
`requiredTierForFull`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 3, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "attribution": {
+      "$ref": "#/components/schemas/Attribution"
+    },
+    "dataSource": {
+      "type": "string"
+    },
+    "narratives": {
+      "items": {
+        "properties": {
+          "change24h": {
+            "type": "number"
+          },
+          "marketCap": {
+            "type": "number"
+          },
+          "name": {
+            "type": "string"
+          },
+          "tokens": {
+            "items": {
+              "type": "object"
+            },
+            "type": "array"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "requiredTierForFull": {
+      "type": "string"
+    },
+    "total": {
+      "type": "number"
+    },
+    "updatedAt": {
+      "format": "date-time",
+      "type": "string"
+    }
+  },
+  "type": "object"
+}

First observedJun 17, 2026

TDQS

A4.1/5.0

Behavior4/5

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

Annotations already cover the read-only, idempotent, non-destructive profile, so the description adds meaningful behavioral context beyond that: results are cached ~30 minutes, the full data set requires a Weekly Alpha subscription, and the free preview is limited to 3 narratives with 3 tokens each. There is no contradiction with annotations.

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 front-loads the main purpose, but it repeats the same example categories (AI, RWA, DePIN, memecoins) and essentially says 'top tokens' and 'leading tokens' twice. The content is not excessive, but some redundancy could be trimmed without losing meaning.

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?

For a zero-parameter, read-only snapshot tool with an output schema and strong annotations, the description is complete enough. It covers the data source, freshness, access tiers, and what the agent can expect in the free response, so no critical calling context 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?

The tool has zero parameters, so the schema documents everything and the baseline is 4. The description compensates well by explaining the data scope, source, and subscription split, even though there are no parameters to elaborate on.

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 names a concrete resource ('top trending market narrative sectors') with specific examples (AI, RWA, DePIN, memecoins) and a clear derivation source (CoinGecko Categories). It also specifies the deliverable ('leading tokens') and the free-preview limitation, so an agent can distinguish it from unrelated siblings like airdrops or tax_rates.

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

Usage Guidelines3/5

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

The description gives useful context: this is a current snapshot, cached ~30 minutes, with a free preview and a subscription-gated full set. However, it does not explicitly state when to prefer this over narrative_history or trending, nor does it name an alternative, so usage guidance remains implied rather than explicit.

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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