Koskamo

Read a revision diff artifact

koskamo_get_artifact

Read-onlyIdempotent

Read a bounded page of an exact public revision diff by artifact_id. Optional cursor continues the declared JSON bytes. No writes, downloads, uploads, private reviewer notes, or charges. Concatenate content pages before parsing the artifact.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "artifact_id": "<artifact_id>"
    },
    "name": "koskamo_get_artifact"
  }
}

Input Schema

Name	Required	Description	Default
`cursor`	No	Opaque continuation cursor returned by the previous page; keep the same resource and filters.
`artifact_id`	Yes	Exact artifact ID returned for a revision, in revision:<UUID> form.

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed3 schema fields changedNov 4, 2026

changedInput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

changedOutput schema / $schema

Previous value: -"http://json-schema.org/draft-07/schema#"New value: +"https://json-schema.org/draft/2020-12/schema"

changedOutput schema / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "context": {
-        "additionalProperties": false,
-        "properties": {
-          "app_id": {
-            "const": "koskamo",
-            "type": "string"
-          },
-          "environment": {
-            "enum": [
-              "public",
-              "production",
-              "sandbox"
-            ],
-            "type": "string"
-          },
-          "tenant_ref": {
-            "type": "null"
-          },
-          "timezone": {
-            "const": "UTC",
-            "type": "string"
-          }
-        },
-        "required": [
-          "app_id",
-          "tenant_ref",
-          "environment",
-          "timezone"
-        ],
-        "type": "object"
-      },
-      "data": {
-        "additionalProperties": false,
-        "properties": {
-          "app_url": {
-            "format": "uri",
-            "type": "string"
-          },
-          "artifact_id": {
-            "type": "string"
-          },
-          "byte_size": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "content": {
-            "type": "string"
-          },
-          "content_hash": {
-            "type": "string"
-          },
-          "created_at": {
-            "format": "date-time",
-            "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-            "type": "string"
-          },
-          "expires_at": {
-            "type": "null"
-          },
-          "media_type": {
-            "const": "application/json",
-            "type": "string"
-          },
-          "name": {
-            "type": "string"
-          },
-          "next_cursor": {
-            "type": [
-              "string",
-              "null"
-            ]
-          }
-        },
-        "required": [
-          "artifact_id",
-          "name",
-          "media_type",
-          "byte_size",
-          "content_hash",
-          "created_at",
-          "expires_at",
-          "app_url",
-          "content",
-          "next_cursor"
-        ],
-        "type": "object"
-      },
-      "generated_at": {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-        "type": "string"
-      },
-      "kind": {
-        "const": "record",
-        "type": "string"
-      },
-      "next_actions": {
-        "items": {
-          "oneOf": [
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "tool_name": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "call_tool",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "tool_name",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "open_url",
-                  "type": "string"
-                },
-                "url": {
-                  "format": "uri",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "url",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "fields": {
-                  "items": {
-                    "type": "string"
-                  },
-                  "type": "array"
-                },
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "provide_input",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "fields",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "retry_after_ms": {
-                  "maximum": 9007199254740991,
-                  "minimum": 0,
-                  "type": "integer"
-                },
-                "type": {
-                  "const": "wait",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "retry_after_ms",
-                "reason"
-              ],
-              "type": "object"
-            }
-          ]
-        },
-        "type": "array"
-      },
-      "provenance": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "freshness": {
-              "enum": [
-                "fresh",
-                "stale",
-                "unknown"
-              ],
-              "type": "string"
-            },
-            "observed_at": {
-              "anyOf": [
-                {
-                  "format": "date-time",
-                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "retrieved_at": {
-              "format": "date-time",
-              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-              "type": "string"
-            },
-            "source_id": {
-              "type": "string"
-            },
-            "source_url": {
-              "format": "uri",
-              "type": "string"
-            },
-            "source_version": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "source_id",
-            "observed_at",
-            "retrieved_at",
-            "freshness"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "request_id": {
-        "type": "string"
-      },
-      "schema_version": {
-        "const": "1.0.0",
-        "type": "string"
-      },
-      "warnings": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "code": {
-              "type": "string"
-            },
-            "field": {
-              "type": "string"
-            },
-            "message": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "code",
-            "message"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      }
-    },
-    "required": [
-      "schema_version",
-      "kind",
-      "request_id",
-      "generated_at",
-      "context",
-      "data",
-      "warnings",
-      "next_actions"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "context": {
-        "additionalProperties": false,
-        "properties": {
-          "app_id": {
-            "const": "koskamo",
-            "type": "string"
-          },
-          "environment": {
-            "enum": [
-              "public",
-              "production",
-              "sandbox"
-            ],
-            "type": "string"
-          },
-          "tenant_ref": {
-            "type": "null"
-          },
-          "timezone": {
-            "const": "UTC",
-            "type": "string"
-          }
-        },
-        "required": [
-          "app_id",
-          "tenant_ref",
-          "environment",
-          "timezone"
-        ],
-        "type": "object"
-      },
-      "data": {
-        "additionalProperties": false,
-        "properties": {
-          "code": {
-            "enum": [
-              "invalid_input",
-              "unauthenticated",
-              "permission_denied",
-              "consent_required",
-              "ambiguous_target",
-              "not_found",
-              "unsupported_capability",
-              "configuration_required",
-              "integration_expired",
-              "stale_data",
-              "version_conflict",
-              "approval_required",
-              "approval_expired",
-              "idempotency_conflict",
-              "rate_limited",
-              "quota_exceeded",
-              "provider_unavailable",
-              "outcome_unknown",
-              "reconciliation_required",
-              "cursor_expired",
-              "artifact_expired",
-              "internal_error"
-            ],
-            "type": "string"
-          },
-          "domain_code": {
-            "type": "string"
-          },
-          "effects": {
-            "enum": [
-              "none",
-              "committed",
-              "partial",
-              "unknown"
-            ],
-            "type": "string"
-          },
-          "field_errors": {
-            "items": {
-              "additionalProperties": false,
-              "properties": {
-                "field": {
-                  "type": "string"
-                },
-                "message": {
-                  "type": "string"
-                }
-              },
-              "required": [
-                "field",
-                "message"
-              ],
-              "type": "object"
-            },
-            "type": "array"
-          },
-          "message": {
-            "type": "string"
-          },
-          "operation_id": {
-            "type": "string"
-          },
-          "retry_after_ms": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "retry_strategy": {
-            "enum": [
-              "never",
-              "same_request",
-              "after_delay",
-              "after_correction",
-              "reconcile_first"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "code",
-          "message",
-          "effects",
-          "retry_strategy"
-        ],
-        "type": "object"
-      },
-      "generated_at": {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-        "type": "string"
-      },
-      "kind": {
-        "const": "error",
-        "type": "string"
-      },
-      "next_actions": {
-        "items": {
-          "oneOf": [
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "tool_name": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "call_tool",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "tool_name",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "open_url",
-                  "type": "string"
-                },
-                "url": {
-                  "format": "uri",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "url",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "fields": {
-                  "items": {
-                    "type": "string"
-                  },
-                  "type": "array"
-                },
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "provide_input",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "fields",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "retry_after_ms": {
-                  "maximum": 9007199254740991,
-                  "minimum": 0,
-                  "type": "integer"
-                },
-                "type": {
-                  "const": "wait",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "retry_after_ms",
-                "reason"
-              ],
-              "type": "object"
-            }
-          ]
-        },
-        "type": "array"
-      },
-      "provenance": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "freshness": {
-              "enum": [
-                "fresh",
-                "stale",
-                "unknown"
-              ],
-              "type": "string"
-            },
-            "observed_at": {
-              "anyOf": [
-                {
-                  "format": "date-time",
-                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "retrieved_at": {
-              "format": "date-time",
-              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-              "type": "string"
-            },
-            "source_id": {
-              "type": "string"
-            },
-            "source_url": {
-              "format": "uri",
-              "type": "string"
-            },
-            "source_version": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "source_id",
-            "observed_at",
-            "retrieved_at",
-            "freshness"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "request_id": {
-        "type": "string"
-      },
-      "schema_version": {
-        "const": "1.0.0",
-        "type": "string"
-      },
-      "warnings": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "code": {
-              "type": "string"
-            },
-            "field": {
-              "type": "string"
-            },
-            "message": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "code",
-            "message"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      }
-    },
-    "required": [
-      "schema_version",
-      "kind",
-      "request_id",
-      "generated_at",
-      "context",
-      "data",
-      "warnings",
-      "next_actions"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "additionalProperties": false,
+        "properties": {
+          "app_id": {
+            "const": "koskamo",
+            "type": "string"
+          },
+          "environment": {
+            "enum": [
+              "public",
+              "production",
+              "sandbox"
+            ],
+            "type": "string"
+          },
+          "tenant_ref": {
+            "type": "null"
+          },
+          "timezone": {
+            "const": "UTC",
+            "type": "string"
+          }
+        },
+        "required": [
+          "app_id",
+          "tenant_ref",
+          "environment",
+          "timezone"
+        ],
+        "type": "object"
+      },
+      "data": {
+        "additionalProperties": false,
+        "properties": {
+          "app_url": {
+            "format": "uri",
+            "type": "string"
+          },
+          "artifact_id": {
+            "type": "string"
+          },
+          "byte_size": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "content": {
+            "type": "string"
+          },
+          "content_hash": {
+            "type": "string"
+          },
+          "created_at": {
+            "format": "date-time",
+            "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+            "type": "string"
+          },
+          "expires_at": {
+            "type": "null"
+          },
+          "media_type": {
+            "const": "application/json",
+            "type": "string"
+          },
+          "name": {
+            "type": "string"
+          },
+          "next_cursor": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "artifact_id",
+          "name",
+          "media_type",
+          "byte_size",
+          "content_hash",
+          "created_at",
+          "expires_at",
+          "app_url",
+          "content",
+          "next_cursor"
+        ],
+        "type": "object"
+      },
+      "generated_at": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+        "type": "string"
+      },
+      "kind": {
+        "const": "record",
+        "type": "string"
+      },
+      "next_actions": {
+        "items": {
+          "oneOf": [
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "tool_name": {
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "type": {
+                  "const": "call_tool",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "tool_name",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "open_url",
+                  "type": "string"
+                },
+                "url": {
+                  "format": "uri",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "url",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "fields": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "provide_input",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "fields",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "retry_after_ms": {
+                  "maximum": 9007199254740991,
+                  "minimum": 0,
+                  "type": "integer"
+                },
+                "type": {
+                  "const": "wait",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "retry_after_ms",
+                "reason"
+              ],
+              "type": "object"
+            }
+          ]
+        },
+        "type": "array"
+      },
+      "provenance": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "freshness": {
+              "enum": [
+                "fresh",
+                "stale",
+                "unknown"
+              ],
+              "type": "string"
+            },
+            "observed_at": {
+              "anyOf": [
+                {
+                  "format": "date-time",
+                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "retrieved_at": {
+              "format": "date-time",
+              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+              "type": "string"
+            },
+            "source_id": {
+              "minLength": 1,
+              "type": "string"
+            },
+            "source_url": {
+              "format": "uri",
+              "type": "string"
+            },
+            "source_version": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "source_id",
+            "observed_at",
+            "retrieved_at",
+            "freshness"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "request_id": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "schema_version": {
+        "const": "1.0.0",
+        "type": "string"
+      },
+      "warnings": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "code": {
+              "type": "string"
+            },
+            "field": {
+              "type": "string"
+            },
+            "message": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "code",
+            "message"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "schema_version",
+      "kind",
+      "request_id",
+      "generated_at",
+      "context",
+      "data",
+      "warnings",
+      "next_actions"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "additionalProperties": false,
+        "properties": {
+          "app_id": {
+            "const": "koskamo",
+            "type": "string"
+          },
+          "environment": {
+            "enum": [
+              "public",
+              "production",
+              "sandbox"
+            ],
+            "type": "string"
+          },
+          "tenant_ref": {
+            "type": "null"
+          },
+          "timezone": {
+            "const": "UTC",
+            "type": "string"
+          }
+        },
+        "required": [
+          "app_id",
+          "tenant_ref",
+          "environment",
+          "timezone"
+        ],
+        "type": "object"
+      },
+      "data": {
+        "additionalProperties": false,
+        "properties": {
+          "code": {
+            "enum": [
+              "invalid_input",
+              "unauthenticated",
+              "permission_denied",
+              "consent_required",
+              "ambiguous_target",
+              "not_found",
+              "unsupported_capability",
+              "configuration_required",
+              "integration_expired",
+              "stale_data",
+              "version_conflict",
+              "approval_required",
+              "approval_expired",
+              "idempotency_conflict",
+              "rate_limited",
+              "quota_exceeded",
+              "provider_unavailable",
+              "outcome_unknown",
+              "reconciliation_required",
+              "cursor_expired",
+              "artifact_expired",
+              "internal_error"
+            ],
+            "type": "string"
+          },
+          "domain_code": {
+            "type": "string"
+          },
+          "effects": {
+            "enum": [
+              "none",
+              "committed",
+              "partial",
+              "unknown"
+            ],
+            "type": "string"
+          },
+          "field_errors": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "field": {
+                  "type": "string"
+                },
+                "message": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "field",
+                "message"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "message": {
+            "type": "string"
+          },
+          "operation_id": {
+            "type": "string"
+          },
+          "retry_after_ms": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "retry_strategy": {
+            "enum": [
+              "never",
+              "same_request",
+              "after_delay",
+              "after_correction",
+              "reconcile_first"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "code",
+          "message",
+          "effects",
+          "retry_strategy"
+        ],
+        "type": "object"
+      },
+      "generated_at": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+        "type": "string"
+      },
+      "kind": {
+        "const": "error",
+        "type": "string"
+      },
+      "next_actions": {
+        "items": {
+          "oneOf": [
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "tool_name": {
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "type": {
+                  "const": "call_tool",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "tool_name",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "open_url",
+                  "type": "string"
+                },
+                "url": {
+                  "format": "uri",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "url",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "fields": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "provide_input",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "fields",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "retry_after_ms": {
+                  "maximum": 9007199254740991,
+                  "minimum": 0,
+                  "type": "integer"
+                },
+                "type": {
+                  "const": "wait",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "retry_after_ms",
+                "reason"
+              ],
+              "type": "object"
+            }
+          ]
+        },
+        "type": "array"
+      },
+      "provenance": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "freshness": {
+              "enum": [
+                "fresh",
+                "stale",
+                "unknown"
+              ],
+              "type": "string"
+            },
+            "observed_at": {
+              "anyOf": [
+                {
+                  "format": "date-time",
+                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "retrieved_at": {
+              "format": "date-time",
+              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+              "type": "string"
+            },
+            "source_id": {
+              "minLength": 1,
+              "type": "string"
+            },
+            "source_url": {
+              "format": "uri",
+              "type": "string"
+            },
+            "source_version": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "source_id",
+            "observed_at",
+            "retrieved_at",
+            "freshness"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "request_id": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "schema_version": {
+        "const": "1.0.0",
+        "type": "string"
+      },
+      "warnings": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "code": {
+              "type": "string"
+            },
+            "field": {
+              "type": "string"
+            },
+            "message": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "code",
+            "message"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "schema_version",
+      "kind",
+      "request_id",
+      "generated_at",
+      "context",
+      "data",
+      "warnings",
+      "next_actions"
+    ],
+    "type": "object"
+  }
+]

AddedNov 3, 2026

TDQS

A3.8/5.0

Behavior4/5

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

Annotations already declare readOnly, idempotent, non-destructive, but the description adds real value beyond them: it bounds the response to a page, enumerates what is excluded (downloads, uploads, private reviewer notes, charges), and tells the agent to concatenate pages before parsing. Scope exclusions like private reviewer notes and no charges are not derivable from the annotation set. It stops short of describing error or expiry behavior for stale artifacts.

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

Conciseness5/5

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

Three short sentences with zero filler, and the core scope plus the paging instruction are front-loaded before the exclusion list. Every sentence carries distinct information.

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?

With a full output schema and complete annotations, the description only needs to cover paging semantics and scope, and it does both. The main residual gap is what happens when an artifact_id is stale or the revision is private, which an agent would want to know before calling.

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 both artifact_id and cursor are already documented in the schema, including the revision:<UUID> pattern and the 'opaque continuation cursor' note. The description only lightly extends this by saying the cursor continues the declared JSON bytes; baseline 3 is appropriate when the schema does the heavy lifting.

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 first sentence names a specific verb and resource — 'Read a bounded page of an exact public revision diff by artifact_id' — which is precise enough to separate this from the metadata-oriented siblings like koskamo_get_revision and koskamo_list_revisions. It never names those siblings explicitly, so the differentiation is inferred from the resource wording rather than stated.

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 clear operational guidance for pagination ('Optional cursor continues the declared JSON bytes' and 'Concatenate content pages before parsing the artifact'), which tells an agent how to consume the tool correctly. It does not state prerequisites (where artifact_id comes from) or name an alternative to use instead when a full diff or revision metadata is wanted, so the when-not guidance is absent.

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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