ChainHelix for Machines

wallet_risk

Risk profile of one wallet address across chains: risk score, mixer funding and source, dormancy, transaction count and value, protocols used, bridge count, flagged (true when funded by a mixer or on the OFAC SDN list, with flagReasons), plus its recent bridge, mixer and transfer events. sanctioned: on the OFAC SDN address list. entity: the exchange name when the address is a labelled exchange hot wallet or deposit address. A wallet dropped from the live profile table in the last 30 days is answered from its newest saved profile (fromHistory true, evictedAt); history lists the saved profiles of the last 30 days, newest first, up to 20 per chain. Public onchain behaviour only. Price: 5 cents per call.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`chain`	No
`address`	Yes

Output Schema

TableJSON Schema

Name	Required	Description
`entity`	No
`source`	No
`address`	Yes
`history`	No
`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.
`profiled`	Yes
`profiles`	No
`sanctioned`	No
`recentEvents`	No

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"

Changed7 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"
+}

addedOutput schema / properties / entity

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

addedOutput schema / properties / history

Added value: +{
+  "type": [
+    "array",
+    "null"
+  ]
+}

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 / sanctioned
```
Added value: +{
+  "type": "boolean"
+}
```

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"

Changed3 schema fields changedSep 19, 2026

addedInput schema / x-aliases

Added value: +{
+  "address": [
+    "Address"
+  ]
+}

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: +{
+  "address": "onchain.addressApi",
+  "chain": "onchain.chain"
+}

Changed1 schema field changedSep 8, 2026
- addedOutput schema / properties / source
```
Added value: +{
+  "type": [
+    "string",
+    "null"
+  ]
+}
```

Changed2 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"
+}

AddedAug 24, 2026

TDQS

B3.3/5.0

Behavior4/5

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

With no annotations, the description carries the full burden and does so well: it discloses the 5c-per-call cost, the fallback behavior for wallets evicted from the live table (fromHistory true, evictedAt), and the history retention rule (last 30 days, newest first, up to 20 per chain). It also defines several output fields (flagged, sanctioned, entity), though it says nothing about auth requirements or rate limits.

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, then dense but purposeful clauses covering fields, semantics, history behavior, and pricing. It is a long single block without formatting, but nearly every clause carries information and nothing is repeated.

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, this is close to complete on the behavioral side — fallback logic, retention, field semantics, and cost are all covered. The missing piece is parameter usage and any selection guidance versus sibling tools.

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

Parameters2/5

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

Schema description coverage is 0% across both parameters, so the description must compensate and largely does not. It never mentions 'address' or the 'chain' enum, nor what the chain value controls, nor that address is required — 'one wallet address across chains' only faintly implies the chain parameter.

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?

States a specific verb+resource ('Risk profile of one wallet address across chains') and enumerates the concrete data returned (risk score, mixer funding, dormancy, bridge count, etc.), so the agent knows exactly what this produces. It does not name or distinguish itself from siblings like screened_payer, victim_flow, or whale_flows, which is the only gap.

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 when-to-use guidance, no prerequisites, and no exclusions or alternatives referenced. An agent must infer that this is the per-address lookup tool rather than a flow/pool tool. 'Public onchain behaviour only' is a scope note, not usage guidance.

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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