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UCP 600 / ISBP 745 Document Examination Assembler

examine_lc_document_presentation
Read-onlyIdempotent

UCP 600 / ISBP 745 Document Examination Assembler: OpenChainGraph compute node (compliance_control). Deterministic OpenChainGraph compute node. By default (compute:"auto") inputs are computed server-side on Cloudflare Workers for gpu:false nodes with a registered kernel; compute:"browser" forces client-side execution and returns a browser delegation URL instead. gpu:true nodes always delegate to the browser. Inputs are processed transiently to compute the response and are not stored, logged, or retained. Use synthetic or anonymised inputs only. Exports an AP2 artifact with execution_hash for chain provenance. Open at: https://ainumbers.co/chaingraph/art-570-ucp600-document-examination-assembler.html FV-status (published/proven/still-trusted for this spec): /fv-status/ca4e1dca8343f788a296161f0e19712f7afb7e5eaec0431081e715a4cc34b784.json — a snapshot, not a subscription; this receipt verifies offline regardless of whether that file is ever fetched. Summary: Recomputes the letter-of-credit document examination a checker already works from a paper checklist inside the 5-banking-day window, from structured fields the checker has transcribed off the presentation -- no OCR, no document upload, no parsing of any document image or free text. Outputs: clause_note, cross_document, decision, drafts, examination_window, findings, insurance_check, presentation_date, presentation_window, rejected_inputs, scope_note, tolerances, verdict. Output schema: call describe_tool("examine_lc_document_presentation").

Input Schema

NameRequiredDescriptionDefault
computeNoCompute mode (v0.4 Compute Binding). "auto" (default) = server for gpu:false nodes with registered kernels; "server" = force server-side; "browser" = always return browser delegation URL. gpu:true nodes always delegate.
parent_hashesNoexecution_hash values from upstream ChainGraph AP2 artifacts to chain from (sets chain.parent_hashes in the export).
parent_tool_idsNotool_id values matching parent_hashes, in the same order.
policy_parametersNoInput parameters for this tool's decision function. For gpu:false nodes with a registered kernel, these are computed server-side when compute is "auto" or "server". Required: bank_holidays, documents, examination_date, goods_description_conforms, lc, presentation_date. Unknown keys are refused.

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedInput schema / $schema
      Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"
  2. Changed3 schema fields changed
    • changedInput schema / properties / policy_parameters / description
      Previous value: -"Input parameters for this tool's decision function. For gpu:false nodes with a registered kernel, these are computed server-side when compute is \"auto\" or \"server\". See the tool's manifest for field names."New value: +"Input parameters for this tool's decision function. For gpu:false nodes with a registered kernel, these are computed server-side when compute is \"auto\" or \"server\". Required: bank_holidays, documents, examination_date, goods_description_conforms, lc, presentation_date. Unknown keys are refused."
    • addedInput schema / properties / policy_parameters / properties
      Added value: +{
+  "bank_holidays": {
+    "type": "array"
+  },
+  "documents": {},
+  "examination_date": {},
+  "goods_description_conforms": {},
+  "lc": {},
+  "presentation_date": {}
+}
    • removedInput schema / properties / policy_parameters / propertyNames
      Removed value: -{
-  "type": "string"
-}
  3. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -{
-  "properties": {
-    "clause_note": {
-      "type": "string"
-    },
-    "cross_document": {
-      "properties": {
-        "invoice_vs_insurance_goods_description": {
-          "type": "string"
-        },
-        "invoice_vs_transport_goods_description": {
-          "type": "boolean"
-        },
-        "port_of_discharge": {
-          "properties": {
-            "document": {
-              "type": "string"
-            },
-            "lc": {
-              "type": "string"
-            },
-            "matches": {
-              "type": "boolean"
-            }
-          },
-          "type": "object"
-        },
-        "port_of_loading": {
-          "properties": {
-            "document": {
-              "type": "string"
-            },
-            "lc": {
-              "type": "string"
-            },
-            "matches": {
-              "type": "boolean"
-            }
-          },
-          "type": "object"
-        }
-      },
-      "type": "object"
-    },
-    "decision": {
-      "properties": {
-        "execution_state": {
-          "type": "string"
-        },
-        "gate_policy": {
-          "type": "string"
-        },
-        "reason": {
-          "type": "string"
-        }
-      },
-      "type": "object"
-    },
-    "drafts": {
-      "items": {
-        "properties": {
-          "amount_minor": {
-            "type": "integer"
-          },
-          "drawee": {
-            "type": "string"
-          },
-          "maturity_date": {
-            "type": "string"
-          },
-          "tenor_matches_lc": {
-            "type": "string"
-          },
-          "tenor_type": {
-            "type": "string"
-          },
-          "usance_basis": {
-            "type": "string"
-          },
-          "usance_days": {
-            "type": "string"
-          }
-        },
-        "type": "object"
-      },
-      "type": "array"
-    },
-    "examination_window": {
-      "properties": {
-        "examination_date": {
-          "type": "string"
-        },
-        "examination_deadline": {
-          "type": "string"
-        },
-        "examination_within_window": {
-          "type": "boolean"
-        },
-        "presentation_date": {
-          "type": "string"
-        }
-      },
-      "type": "object"
-    },
-    "findings": {
-      "type": "array"
-    },
-    "insurance_check": {
-      "properties": {
-        "cif_cip_value_minor": {
-          "type": "integer"
-        },
-        "effective_date": {
-          "type": "string"
-        },
-        "insurance_amount_minor": {
-          "type": "integer"
-        },
-        "meets_floor": {
-          "type": "boolean"
-        },
-        "min_insurance_pct_of_cif": {
-          "type": "integer"
-        },
-        "required_minor": {
-          "type": "integer"
-        }
-      },
-      "type": "object"
-    },
-    "presentation_date": {
-      "type": "string"
-    },
-    "presentation_window": {
-      "properties": {
-        "expiry_date": {
-          "type": "string"
-        },
-        "latest_shipment_date": {
-          "type": "string"
-        },
-        "presentation_period_days": {
-          "type": "integer"
-        },
-        "shipment_date": {
-          "type": "string"
-        },
-        "shipment_on_time": {
-          "type": "boolean"
-        },
-        "shipment_plus_window_deadline": {
-          "type": "string"
-        },
-        "within_expiry": {
-          "type": "boolean"
-        },
-        "within_shipment_window": {
-          "type": "boolean"
-        }
-      },
-      "type": "object"
-    },
-    "rejected_inputs": {
-      "type": "array"
-    },
-    "scope_note": {
-      "type": "string"
-    },
-    "tolerances": {
-      "properties": {
-        "amount": {
-          "properties": {
-            "invoice_amount_minor": {
-              "type": "integer"
-            },
-            "lc_amount_minor": {
-              "type": "integer"
-            },
-            "tolerance_pct": {
-              "type": "integer"
-            },
-            "variance_pct": {
-              "type": "integer"
-            },
-            "within_tolerance": {
-              "type": "boolean"
-            }
-          },
-          "type": "object"
-        },
-        "quantity": {
-          "properties": {
-            "invoice_value": {
-              "type": "integer"
-            },
-            "lc_value": {
-              "type": "integer"
-            },
-            "tolerance_pct": {
-              "type": "integer"
-            },
-            "unit": {
-              "type": "string"
-            },
-            "variance_pct": {
-              "type": "integer"
-            },
-            "within_tolerance": {
-              "type": "boolean"
-            }
-          },
-          "type": "object"
-        }
-      },
-      "type": "object"
-    },
-    "verdict": {
-      "type": "string"
-    }
-  },
-  "type": "object"
-}New value: +null
  4. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "clause_note": {
+      "type": "string"
+    },
+    "cross_document": {
+      "properties": {
+        "invoice_vs_insurance_goods_description": {
+          "type": "string"
+        },
+        "invoice_vs_transport_goods_description": {
+          "type": "boolean"
+        },
+        "port_of_discharge": {
+          "properties": {
+            "document": {
+              "type": "string"
+            },
+            "lc": {
+              "type": "string"
+            },
+            "matches": {
+              "type": "boolean"
+            }
+          },
+          "type": "object"
+        },
+        "port_of_loading": {
+          "properties": {
+            "document": {
+              "type": "string"
+            },
+            "lc": {
+              "type": "string"
+            },
+            "matches": {
+              "type": "boolean"
+            }
+          },
+          "type": "object"
+        }
+      },
+      "type": "object"
+    },
+    "decision": {
+      "properties": {
+        "execution_state": {
+          "type": "string"
+        },
+        "gate_policy": {
+          "type": "string"
+        },
+        "reason": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "drafts": {
+      "items": {
+        "properties": {
+          "amount_minor": {
+            "type": "integer"
+          },
+          "drawee": {
+            "type": "string"
+          },
+          "maturity_date": {
+            "type": "string"
+          },
+          "tenor_matches_lc": {
+            "type": "string"
+          },
+          "tenor_type": {
+            "type": "string"
+          },
+          "usance_basis": {
+            "type": "string"
+          },
+          "usance_days": {
+            "type": "string"
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "examination_window": {
+      "properties": {
+        "examination_date": {
+          "type": "string"
+        },
+        "examination_deadline": {
+          "type": "string"
+        },
+        "examination_within_window": {
+          "type": "boolean"
+        },
+        "presentation_date": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "findings": {
+      "type": "array"
+    },
+    "insurance_check": {
+      "properties": {
+        "cif_cip_value_minor": {
+          "type": "integer"
+        },
+        "effective_date": {
+          "type": "string"
+        },
+        "insurance_amount_minor": {
+          "type": "integer"
+        },
+        "meets_floor": {
+          "type": "boolean"
+        },
+        "min_insurance_pct_of_cif": {
+          "type": "integer"
+        },
+        "required_minor": {
+          "type": "integer"
+        }
+      },
+      "type": "object"
+    },
+    "presentation_date": {
+      "type": "string"
+    },
+    "presentation_window": {
+      "properties": {
+        "expiry_date": {
+          "type": "string"
+        },
+        "latest_shipment_date": {
+          "type": "string"
+        },
+        "presentation_period_days": {
+          "type": "integer"
+        },
+        "shipment_date": {
+          "type": "string"
+        },
+        "shipment_on_time": {
+          "type": "boolean"
+        },
+        "shipment_plus_window_deadline": {
+          "type": "string"
+        },
+        "within_expiry": {
+          "type": "boolean"
+        },
+        "within_shipment_window": {
+          "type": "boolean"
+        }
+      },
+      "type": "object"
+    },
+    "rejected_inputs": {
+      "type": "array"
+    },
+    "scope_note": {
+      "type": "string"
+    },
+    "tolerances": {
+      "properties": {
+        "amount": {
+          "properties": {
+            "invoice_amount_minor": {
+              "type": "integer"
+            },
+            "lc_amount_minor": {
+              "type": "integer"
+            },
+            "tolerance_pct": {
+              "type": "integer"
+            },
+            "variance_pct": {
+              "type": "integer"
+            },
+            "within_tolerance": {
+              "type": "boolean"
+            }
+          },
+          "type": "object"
+        },
+        "quantity": {
+          "properties": {
+            "invoice_value": {
+              "type": "integer"
+            },
+            "lc_value": {
+              "type": "integer"
+            },
+            "tolerance_pct": {
+              "type": "integer"
+            },
+            "unit": {
+              "type": "string"
+            },
+            "variance_pct": {
+              "type": "integer"
+            },
+            "within_tolerance": {
+              "type": "boolean"
+            }
+          },
+          "type": "object"
+        }
+      },
+      "type": "object"
+    },
+    "verdict": {
+      "type": "string"
+    }
+  },
+  "type": "object"
+}
  5. Added

TDQS

B3.4/5.0
Behavior4/5

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

Annotations already supply readOnly/idempotent/non-destructive, and the description goes further: transient input processing with no storage or logging, auto vs browser delegation semantics, gpu delegation behavior, and an AP2 artifact with execution_hash for provenance. That is meaningful behavioral context beyond the structured fields, though much of it is shared boilerplate rather than tool-specific behavior.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness2/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The actual purpose appears only after roughly five sentences of generic compute-node, privacy, URL and FV-status-receipt boilerplate, and the SHA-256 receipt path plus page URL are noise for tool selection. The one useful sentence is buried rather than front-loaded.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

There is no output schema, so listing the thirteen output keys (verdict, findings, examination_window, tolerances, etc.) is genuinely helpful. However, for a nested four-parameter tool whose policy_parameters sub-objects are typed only as empty objects, the description does not explain what must be supplied in lc and documents, leaving a real gap.

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%, so the schema already documents compute, parent_hashes, parent_tool_ids and the policy_parameters keys, making 3 the baseline. The description adds nothing per-parameter — notably it does not explain what the nested lc/documents objects should contain, where the schema gives them empty types.

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 'Summary' sentence states a specific verb and resource: 'Recomputes the letter-of-credit document examination a checker already works from a paper checklist inside the 5-banking-day window, from structured fields.' That is a genuine distinguishing purpose, but it is buried mid-description behind compute/provenance boilerplate, and it never names a sibling (e.g. verify_trade_document_set, validate_mt700_lc_fields) that an agent might confuse it with.

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 'no OCR, no document upload, no parsing of any document image or free text' clause implicitly tells the agent this tool is for pre-transcribed structured fields only, which is real guidance. But there is no explicit when-to-use/when-not or routing to an alternative among the many LC-adjacent siblings, and the compute-mode paragraph is operational rather than selection 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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