ChainHelix for Machines

whale_flows

Large transfer counts and USD totals per chain, one row per transaction over 500,000 USD, with exchangeTouching = transfers from or to a known exchange hot wallet or deposit address. What is counted: ethereum, bnb, polygon, avalanche native-coin transfers in transfers and totalUsd, and their stablecoin transfers of 500,000 USD or more (USDT, USDC, USD1, USDS, U, USDC.e) in stablecoins, with the blocks read against the block span as coverage; tron TRX and TRC-20 stablecoins; xrp native XRP; sui native SUI; bitcoin since 2026-09-25, the value sent to addresses other than the sender. exchangeTouching is null on bitcoin, tron and sui (too few labelled exchange addresses). Large solana transfers are not captured: the solana row answers null. window in hours default 24 max 168. Price: 2 cents per call.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`chain`	No
`window`	No

Output Schema

TableJSON Schema

Name	Required	Description	Default
`results`	Yes
`dataGaps`	No	Present only when the window of the answer overlaps a recorded data gap. Figures inside each listed period are incomplete. periods are the recorded gaps (end null while still open); atCall is measured against the window of this call and is left out of meta.contentHash.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 16, 2026

changedInput schema / x-lexicon / bundleSha256

Previous value: -"670f7504e3de5031beccee25a2d24e4515f68b893295f6d5b0d3a0665498b2c9"New value: +"25cc80db6d8e9eac73d47a50f7ad6333a21f1972d008a8fed0159de8bfb4b519"

Changed2 schema fields changedOct 16, 2026

changedInput schema / x-lexicon / bundleSha256

Previous value: -"e5b4290024a229f2bdf97f8fc6a0079c3fe13b77267f41fdcffeb8b26aa1c41e"New value: +"670f7504e3de5031beccee25a2d24e4515f68b893295f6d5b0d3a0665498b2c9"

changedInput schema / x-lexicon / version

Previous value: -"0.1.0"New value: +"0.2.0"

Changed5 schema fields changedOct 15, 2026

addedInput schema / additionalProperties
```
Added value: +false
```

addedOutput schema / properties / dataGaps

Added value: +{
+  "additionalProperties": false,
+  "description": "Present only when the window of the answer overlaps a recorded data gap. Figures inside each listed period are incomplete. periods are the recorded gaps (end null while still open); atCall is measured against the window of this call and is left out of meta.contentHash.",
+  "properties": {
+    "gaps": {
+      "items": {
+        "additionalProperties": false,
+        "properties": {
+          "atCall": {
+            "additionalProperties": false,
+            "properties": {
+              "note": {
+                "type": "string"
+              },
+              "periodsInWindow": {
+                "items": {
+                  "additionalProperties": false,
+                  "properties": {
+                    "end": {
+                      "type": "number"
+                    },
+                    "ongoing": {
+                      "type": "boolean"
+                    },
+                    "start": {
+                      "type": "number"
+                    }
+                  },
+                  "required": [
+                    "start",
+                    "end"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              },
+              "shareOfWindowPct": {
+                "type": "number"
+              },
+              "windowEnd": {
+                "type": "number"
+              },
+              "windowStart": {
+                "type": "number"
+              }
+            },
+            "required": [
+              "windowStart",
+              "windowEnd",
+              "periodsInWindow",
+              "shareOfWindowPct",
+              "note"
+            ],
+            "type": "object"
+          },
+          "chain": {
+            "type": "string"
+          },
+          "data": {
+            "type": "string"
+          },
+          "periods": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "end": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "ongoing": {
+                  "type": "boolean"
+                },
+                "start": {
+                  "type": "number"
+                }
+              },
+              "required": [
+                "start",
+                "end"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "records": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "lost": {
+                  "type": [
+                    "number",
+                    "null"
+                  ]
+                },
+                "lostUnit": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "record": {
+                  "type": "string"
+                },
+                "source": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "source",
+                "record"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "section": {
+            "type": "string"
+          },
+          "window": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "section",
+          "chain",
+          "data",
+          "window",
+          "periods",
+          "records",
+          "atCall"
+        ],
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "statement": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "statement",
+    "gaps"
+  ],
+  "type": "object"
+}

removedOutput schema / properties / meta

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "contentHash": {
-      "type": "string"
-    },
-    "generated": {
-      "type": "number"
-    },
-    "priceUsd": {
-      "type": "number"
-    },
-    "validUntil": {
-      "type": "number"
-    }
-  },
-  "type": "object"
-}

removedOutput schema / properties / receipt

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "bytes": {
-      "type": "number"
-    },
-    "covers": {
-      "type": "string"
-    },
-    "issuedAt": {
-      "type": "number"
-    },
-    "lookup": {
-      "type": "string"
-    },
-    "network": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "nonce": {
-      "type": "string"
-    },
-    "seq": {
-      "type": "number"
-    },
-    "settleTx": {
-      "type": [
-        "string",
-        "null"
-      ]
-    },
-    "sha256": {
-      "type": "string"
-    },
-    "tool": {
-      "type": [
-        "string",
-        "null"
-      ]
-    }
-  },
-  "type": "object"
-}

addedOutput schema / properties / results / items / properties / stablecoins

Added value: +{
+  "additionalProperties": true,
+  "type": [
+    "object",
+    "null"
+  ]
+}

Changed1 schema field changedOct 1, 2026

changedInput schema / properties / chain / enum

Previous value: -[
-  "ethereum",
-  "bnb",
-  "solana",
-  "avalanche",
-  "xrp",
-  "tron",
-  "polygon",
-  "sui"
-]New value: +[
+  "bitcoin",
+  "ethereum",
+  "bnb",
+  "solana",
+  "avalanche",
+  "xrp",
+  "tron",
+  "polygon",
+  "sui"
+]

Changed4 schema fields changedSep 22, 2026
- changedOutput schema / properties / results / items / properties / exchangeTouching / type
```
Previous value: -"number"New value: +[
+  "number",
+  "null"
+]
```
- changedOutput schema / properties / results / items / properties / totalUsd / type
```
Previous value: -"number"New value: +[
+  "number",
+  "null"
+]
```
- changedOutput schema / properties / results / items / properties / transfers / type
```
Previous value: -"number"New value: +[
+  "number",
+  "null"
+]
```
- addedOutput schema / properties / results / items / properties / unavailable
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```

Changed1 schema field changedSep 21, 2026

changedInput schema / x-lexicon / bundleSha256

Previous value: -"a1c2e10fd3177d6b4d59ca78693e8fb36880165cf0f735f680dd86a510411178"New value: +"e5b4290024a229f2bdf97f8fc6a0079c3fe13b77267f41fdcffeb8b26aa1c41e"

Changed1 schema field changedSep 19, 2026

changedInput schema / x-lexicon / bundleSha256

Previous value: -"1eeb782ee15fe69fc80776948e0556fa6b795e210e6305935b2c97b73d955cda"New value: +"a1c2e10fd3177d6b4d59ca78693e8fb36880165cf0f735f680dd86a510411178"

Changed1 schema field changedSep 19, 2026

changedInput schema / x-lexicon / bundleSha256

Previous value: -"c014292cad7497ce9fd68c33345ac32cb42b672c8e77d6c749c26e162cc207e4"New value: +"1eeb782ee15fe69fc80776948e0556fa6b795e210e6305935b2c97b73d955cda"

Changed2 schema fields changedSep 19, 2026

addedInput schema / x-lexicon

Added value: +{
+  "bundleSha256": "c014292cad7497ce9fd68c33345ac32cb42b672c8e77d6c749c26e162cc207e4",
+  "name": "ChainHelix Agentic Lexicon",
+  "resolve": "lexicon_resolve",
+  "spec": "lexicon_spec",
+  "version": "0.1.0"
+}

addedInput schema / x-vocab

Added value: +{
+  "chain": "onchain.chain",
+  "window": "market.window"
+}

Changed1 schema field changedSep 6, 2026

changedInput schema / properties / chain / enum

Previous value: -[
-  "bitcoin",
-  "ethereum",
-  "bnb",
-  "solana",
-  "avalanche",
-  "xrp",
-  "tron",
-  "polygon",
-  "sui"
-]New value: +[
+  "ethereum",
+  "bnb",
+  "solana",
+  "avalanche",
+  "xrp",
+  "tron",
+  "polygon",
+  "sui"
+]

Changed5 schema fields changedSep 5, 2026

addedOutput schema / properties / meta

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "contentHash": {
+      "type": "string"
+    },
+    "generated": {
+      "type": "number"
+    },
+    "priceUsd": {
+      "type": "number"
+    },
+    "validUntil": {
+      "type": "number"
+    }
+  },
+  "type": "object"
+}

addedOutput schema / properties / receipt

Added value: +{
+  "additionalProperties": false,
+  "properties": {
+    "bytes": {
+      "type": "number"
+    },
+    "covers": {
+      "type": "string"
+    },
+    "issuedAt": {
+      "type": "number"
+    },
+    "lookup": {
+      "type": "string"
+    },
+    "network": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "nonce": {
+      "type": "string"
+    },
+    "seq": {
+      "type": "number"
+    },
+    "settleTx": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "sha256": {
+      "type": "string"
+    },
+    "tool": {
+      "type": [
+        "string",
+        "null"
+      ]
+    }
+  },
+  "type": "object"
+}

addedOutput schema / properties / results / items / properties / largest

Added value: +{
+  "items": {
+    "additionalProperties": false,
+    "properties": {
+      "t": {
+        "type": [
+          "number",
+          "null"
+        ]
+      },
+      "tx": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "valueUsd": {
+        "type": "number"
+      }
+    },
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / results / items / properties / latestAt
```
Added value: +{
+  "type": [
+    "number",
+    "null"
+  ]
+}
```
addedOutput schema / properties / results / items / properties / source
```
Added value: +{
+  "type": "string"
+}
```

First observedAug 17, 2026

TDQS

A3.5/5.0

Behavior4/5

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

With no annotations, the description carries the full behavioral burden, and it does so well: it discloses that exchangeTouching is null on bitcoin/tron/sui, that solana is not captured (row answers null), that bitcoin data only exists since 2026-09-25, and that the call costs 2 cents. It omits auth requirements and rate limits, but the caveats and pricing are unusually rich for a query tool.

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 core purpose is front-loaded, but the body is a dense run-on catalog of per-chain exceptions where the pricing and null-value rules sit at the very end. It is information-dense rather than padded, but the lack of structure hurts scannability.

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?

For a 2-parameter tool with an output schema, the description is largely complete: it documents what is counted, known data gaps via null semantics, the time coverage, and the cost. The absence of any usage routing to sibling flow tools is the main remaining gap.

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 description coverage is 0%, so the description must compensate, and it does: 'window in hours default 24 max 168' gives a default and upper bound the bare number schema lacks, and the coverage prose explains what each chain value actually counts. Only the chain default/required status is left implicit.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the resource (large transfers >500k USD, counts and USD totals per chain, one row per transaction) and a specific scope. It is easily distinguished from siblings like stablecoin_flows or bridge_flows by its whale-size threshold and per-chain framing, though it never names those alternatives explicitly.

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

Usage Guidelines2/5

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

There is no explicit when-to-use/when-not guidance: no mention of when to prefer whale_flows over stablecoin_flows, bridge_flows, or victim_flow. The coverage notes imply usage context but leave the agent to infer the selection conditions on its own.

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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