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Prioritize new SEC disclosure changes

filedproof.check_disclosure_changes
Read-onlyIdempotent

Configured 1.00 USD specialist operation when runtime commerce is active. Use this for one issuer when the caller needs changes in newly filed disclosures prioritized against the prior filing of the same form, with compact before/after evidence from SEC filings and retry-safe checkpoint state. Supply a freeform topic, or profile=financial_risk for the bounded liquidity, debt, dilution/equity-issuance, and changed-risk report. The report separates documented filing changes from deterministic category/attention interpretation. Use filedproof.check_material_filing_changes for a fast low-cost same-form 10-K or 10-Q comparison, filedproof.compare_filings for a free raw structural diff between known accessions, or filedproof.list_filings first when coverage is uncertain. Attention is not a legal, accounting, economic, or investment materiality judgment, and pre-payment validation rejects invalid or non-comparable work before a charge.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
itemNoOptional SEC filing item such as 1A or 7.
formsNoSEC forms to monitor. Defaults to 10-K and 10-Q.
limitNoMaximum topic-relevant change evidence records per filing comparison.
topicNoDisclosure topic to monitor, such as AI capital spending, China risk, or cybersecurity. Provide topic or profile, not both.
historyNoWhether to use bounded historical SEC submission archives when needed.
profileNoBounded report profile. financial_risk checks liquidity/capital resources, debt/borrowings/covenants/maturities, dilution/equity-issuance disclosures, and changed risk disclosures together. Provide profile or topic, not both.
identifierYesTicker, CIK, or exact SEC company name.
maxNewFilingsNoMaximum newly detected filings to process in one check.
sinceAccessionNoCheckpoint accession returned by the previous paid check. Omit for the first snapshot.
comparisonLimitNoMaximum number of changed blocks to inspect in each filing comparison.
maxArchiveFilesNoMaximum historical SEC submission archive files to inspect when history is enabled.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
modeYes
formsYes
scopeYes
topicYes
eventsYes
issuerYes
statusYes
purposeYes
truncatedYes
checkpointYes
changeCountYes
limitationsNo
agentGuidanceYes
reportProfileNo
schemaVersionYes
changeDetectedYes
attentionCountsYes
haltedOnFailureYes
latestAvailableYes
priorCheckpointYes
overallAttentionYes
newFilingsDetectedYes
remainingNewFilingsYes
highPriorityChangeCountYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed6 schema fields changed
    • addedInput schema / oneOf
      Added value: +[
      +  {
      +    "required": [
      +      "topic"
      +    ]
      +  },
      +  {
      +    "required": [
      +      "profile"
      +    ]
      +  }
      +]
    • addedInput schema / properties / profile
      Added value: +{
      +  "description": "Bounded report profile. financial_risk checks liquidity/capital resources, debt/borrowings/covenants/maturities, dilution/equity-issuance disclosures, and changed risk disclosures together. Provide profile or topic, not both.",
      +  "enum": [
      +    "financial_risk"
      +  ],
      +  "type": "string"
      +}
    • changedInput schema / properties / topic / description
      Previous value: -"Disclosure topic to monitor, such as AI capital spending, China risk, or cybersecurity."New value: +"Disclosure topic to monitor, such as AI capital spending, China risk, or cybersecurity. Provide topic or profile, not both."
    • changedInput schema / required
      Previous value: -[
      -  "identifier",
      -  "topic"
      -]New value: +[
      +  "identifier"
      +]
    • changedOutput schema / properties / events / items / properties / change / oneOf
      Previous value: -[
      -  {
      -    "type": "null"
      -  },
      -  {
      -    "additionalProperties": true,
      -    "properties": {
      -      "attentionCounts": {
      -        "additionalProperties": false,
      -        "properties": {
      -          "high": {
      -            "minimum": 0,
      -            "type": "integer"
      -          },
      -          "low": {
      -            "minimum": 0,
      -            "type": "integer"
      -          },
      -          "medium": {
      -            "minimum": 0,
      -            "type": "integer"
      -          }
      -        },
      -        "required": [
      -          "high",
      -          "medium",
      -          "low"
      -        ],
      -        "type": "object"
      -      },
      -      "changeCount": {
      -        "minimum": 0,
      -        "type": "integer"
      -      },
      -      "changed": {
      -        "type": "boolean"
      -      },
      -      "changes": {
      -        "items": {
      -          "additionalProperties": true,
      -          "properties": {
      -            "after": {
      -              "additionalProperties": true,
      -              "type": [
      -                "object",
      -                "null"
      -              ]
      -            },
      -            "attention": {
      -              "additionalProperties": true,
      -              "properties": {
      -                "level": {
      -                  "enum": [
      -                    "high",
      -                    "medium",
      -                    "low"
      -                  ],
      -                  "type": "string"
      -                },
      -                "score": {
      -                  "type": "number"
      -                }
      -              },
      -              "required": [
      -                "level",
      -                "score"
      -              ],
      -              "type": "object"
      -            },
      -            "before": {
      -              "additionalProperties": true,
      -              "type": [
      -                "object",
      -                "null"
      -              ]
      -            },
      -            "category": {
      -              "minLength": 1,
      -              "type": "string"
      -            },
      -            "confidence": {
      -              "enum": [
      -                "high",
      -                "medium",
      -                "low"
      -              ],
      -              "type": "string"
      -            },
      -            "kind": {
      -              "enum": [
      -                "addition",
      -                "removal",
      -                "revised_disclosure",
      -                "moved_equivalent"
      -              ],
      -              "type": "string"
      -            },
      -            "signals": {
      -              "items": {
      -                "type": "string"
      -              },
      -              "type": "array"
      -            }
      -          },
      -          "required": [
      -            "kind",
      -            "category",
      -            "attention",
      -            "confidence",
      -            "signals",
      -            "before",
      -            "after"
      -          ],
      -          "type": "object"
      -        },
      -        "type": "array"
      -      },
      -      "highPriorityChangeCount": {
      -        "minimum": 0,
      -        "type": "integer"
      -      },
      -      "limitations": {
      -        "items": {
      -          "type": "string"
      -        },
      -        "type": "array"
      -      },
      -      "overallAttention": {
      -        "enum": [
      -          "high",
      -          "medium",
      -          "low",
      -          "none"
      -        ],
      -        "type": "string"
      -      },
      -      "schemaVersion": {
      -        "const": "disclosure-change.v1"
      -      }
      -    },
      -    "required": [
      -      "schemaVersion",
      -      "changed",
      -      "changes"
      -    ],
      -    "type": "object"
      -  }
      -]New value: +[
      +  {
      +    "type": "null"
      +  },
      +  {
      +    "additionalProperties": true,
      +    "properties": {
      +      "attentionCounts": {
      +        "additionalProperties": false,
      +        "properties": {
      +          "high": {
      +            "minimum": 0,
      +            "type": "integer"
      +          },
      +          "low": {
      +            "minimum": 0,
      +            "type": "integer"
      +          },
      +          "medium": {
      +            "minimum": 0,
      +            "type": "integer"
      +          }
      +        },
      +        "required": [
      +          "high",
      +          "medium",
      +          "low"
      +        ],
      +        "type": "object"
      +      },
      +      "changeCount": {
      +        "minimum": 0,
      +        "type": "integer"
      +      },
      +      "changed": {
      +        "type": "boolean"
      +      },
      +      "changes": {
      +        "items": {
      +          "additionalProperties": true,
      +          "properties": {
      +            "after": {
      +              "additionalProperties": true,
      +              "type": [
      +                "object",
      +                "null"
      +              ]
      +            },
      +            "attention": {
      +              "additionalProperties": true,
      +              "properties": {
      +                "level": {
      +                  "enum": [
      +                    "high",
      +                    "medium",
      +                    "low"
      +                  ],
      +                  "type": "string"
      +                },
      +                "score": {
      +                  "type": "number"
      +                }
      +              },
      +              "required": [
      +                "level",
      +                "score"
      +              ],
      +              "type": "object"
      +            },
      +            "before": {
      +              "additionalProperties": true,
      +              "type": [
      +                "object",
      +                "null"
      +              ]
      +            },
      +            "category": {
      +              "minLength": 1,
      +              "type": "string"
      +            },
      +            "classification": {
      +              "additionalProperties": true,
      +              "type": "object"
      +            },
      +            "confidence": {
      +              "enum": [
      +                "high",
      +                "medium",
      +                "low"
      +              ],
      +              "type": "string"
      +            },
      +            "coverageCategories": {
      +              "items": {
      +                "type": "string"
      +              },
      +              "type": "array"
      +            },
      +            "kind": {
      +              "enum": [
      +                "addition",
      +                "removal",
      +                "revised_disclosure",
      +                "moved_equivalent"
      +              ],
      +              "type": "string"
      +            },
      +            "numericAnchors": {
      +              "additionalProperties": true,
      +              "type": "object"
      +            },
      +            "reportingContext": {
      +              "additionalProperties": true,
      +              "type": [
      +                "object",
      +                "null"
      +              ]
      +            },
      +            "signals": {
      +              "items": {
      +                "oneOf": [
      +                  {
      +                    "type": "string"
      +                  },
      +                  {
      +                    "additionalProperties": true,
      +                    "type": "object"
      +                  }
      +                ]
      +              },
      +              "type": "array"
      +            }
      +          },
      +          "required": [
      +            "kind",
      +            "category",
      +            "attention",
      +            "confidence",
      +            "signals",
      +            "before",
      +            "after"
      +          ],
      +          "type": "object"
      +        },
      +        "type": "array"
      +      },
      +      "coverage": {
      +        "additionalProperties": true,
      +        "type": "object"
      +      },
      +      "highPriorityChangeCount": {
      +        "minimum": 0,
      +        "type": "integer"
      +      },
      +      "limitations": {
      +        "items": {
      +          "type": "string"
      +        },
      +        "type": "array"
      +      },
      +      "overallAttention": {
      +        "enum": [
      +          "high",
      +          "medium",
      +          "low",
      +          "none"
      +        ],
      +        "type": "string"
      +      },
      +      "reportProfile": {
      +        "type": "string"
      +      },
      +      "schemaVersion": {
      +        "const": "disclosure-change.v1"
      +      }
      +    },
      +    "required": [
      +      "schemaVersion",
      +      "changed",
      +      "changes"
      +    ],
      +    "type": "object"
      +  }
      +]
    • addedOutput schema / properties / reportProfile
      Added value: +{
      +  "enum": [
      +    "financial_risk",
      +    null
      +  ],
      +  "type": [
      +    "string",
      +    "null"
      +  ]
      +}
  2. Changed1 schema field changed
    • changedOutput schema / $id
      Previous value: -"https://filedproof.com/schemas/monitor-check.v1"New value: +"https://filedproof.davisvillelabs.com/schemas/monitor-check.v1"
  3. Changed2 schema fields changed
    • addedInput schema / properties / comparisonLimit / description
      Added value: +"Maximum number of changed blocks to inspect in each filing comparison."
    • addedInput schema / properties / history / description
      Added value: +"Whether to use bounded historical SEC submission archives when needed."
  4. Changed2 schema fields changed
    • addedInput schema / properties / maxArchiveFiles
      Added value: +{
      +  "description": "Maximum historical SEC submission archive files to inspect when history is enabled.",
      +  "maximum": 20,
      +  "minimum": 1,
      +  "type": "integer"
      +}
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
      +  "$id": "https://filedproof.com/schemas/monitor-check.v1",
      +  "additionalProperties": true,
      +  "properties": {
      +    "agentGuidance": {
      +      "additionalProperties": true,
      +      "properties": {
      +        "invocationBoundary": {
      +          "type": "string"
      +        },
      +        "nextAction": {
      +          "type": "string"
      +        },
      +        "reviewOrder": {
      +          "type": "string"
      +        }
      +      },
      +      "required": [
      +        "nextAction",
      +        "invocationBoundary"
      +      ],
      +      "type": "object"
      +    },
      +    "attentionCounts": {
      +      "additionalProperties": false,
      +      "properties": {
      +        "high": {
      +          "minimum": 0,
      +          "type": "integer"
      +        },
      +        "low": {
      +          "minimum": 0,
      +          "type": "integer"
      +        },
      +        "medium": {
      +          "minimum": 0,
      +          "type": "integer"
      +        }
      +      },
      +      "required": [
      +        "high",
      +        "medium",
      +        "low"
      +      ],
      +      "type": "object"
      +    },
      +    "changeCount": {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    "changeDetected": {
      +      "type": "boolean"
      +    },
      +    "checkpoint": {
      +      "oneOf": [
      +        {
      +          "type": "null"
      +        },
      +        {
      +          "additionalProperties": false,
      +          "properties": {
      +            "accession": {
      +              "minLength": 1,
      +              "type": "string"
      +            },
      +            "filingDate": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            },
      +            "form": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            },
      +            "reportDate": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            }
      +          },
      +          "required": [
      +            "accession",
      +            "form",
      +            "filingDate",
      +            "reportDate"
      +          ],
      +          "type": "object"
      +        }
      +      ]
      +    },
      +    "events": {
      +      "items": {
      +        "additionalProperties": true,
      +        "properties": {
      +          "baseline": {
      +            "oneOf": [
      +              {
      +                "type": "null"
      +              },
      +              {
      +                "additionalProperties": false,
      +                "properties": {
      +                  "accession": {
      +                    "minLength": 1,
      +                    "type": "string"
      +                  },
      +                  "filingDate": {
      +                    "type": [
      +                      "string",
      +                      "null"
      +                    ]
      +                  },
      +                  "form": {
      +                    "type": [
      +                      "string",
      +                      "null"
      +                    ]
      +                  },
      +                  "reportDate": {
      +                    "type": [
      +                      "string",
      +                      "null"
      +                    ]
      +                  }
      +                },
      +                "required": [
      +                  "accession",
      +                  "form",
      +                  "filingDate",
      +                  "reportDate"
      +                ],
      +                "type": "object"
      +              }
      +            ]
      +          },
      +          "change": {
      +            "oneOf": [
      +              {
      +                "type": "null"
      +              },
      +              {
      +                "additionalProperties": true,
      +                "properties": {
      +                  "attentionCounts": {
      +                    "additionalProperties": false,
      +                    "properties": {
      +                      "high": {
      +                        "minimum": 0,
      +                        "type": "integer"
      +                      },
      +                      "low": {
      +                        "minimum": 0,
      +                        "type": "integer"
      +                      },
      +                      "medium": {
      +                        "minimum": 0,
      +                        "type": "integer"
      +                      }
      +                    },
      +                    "required": [
      +                      "high",
      +                      "medium",
      +                      "low"
      +                    ],
      +                    "type": "object"
      +                  },
      +                  "changeCount": {
      +                    "minimum": 0,
      +                    "type": "integer"
      +                  },
      +                  "changed": {
      +                    "type": "boolean"
      +                  },
      +                  "changes": {
      +                    "items": {
      +                      "additionalProperties": true,
      +                      "properties": {
      +                        "after": {
      +                          "additionalProperties": true,
      +                          "type": [
      +                            "object",
      +                            "null"
      +                          ]
      +                        },
      +                        "attention": {
      +                          "additionalProperties": true,
      +                          "properties": {
      +                            "level": {
      +                              "enum": [
      +                                "high",
      +                                "medium",
      +                                "low"
      +                              ],
      +                              "type": "string"
      +                            },
      +                            "score": {
      +                              "type": "number"
      +                            }
      +                          },
      +                          "required": [
      +                            "level",
      +                            "score"
      +                          ],
      +                          "type": "object"
      +                        },
      +                        "before": {
      +                          "additionalProperties": true,
      +                          "type": [
      +                            "object",
      +                            "null"
      +                          ]
      +                        },
      +                        "category": {
      +                          "minLength": 1,
      +                          "type": "string"
      +                        },
      +                        "confidence": {
      +                          "enum": [
      +                            "high",
      +                            "medium",
      +                            "low"
      +                          ],
      +                          "type": "string"
      +                        },
      +                        "kind": {
      +                          "enum": [
      +                            "addition",
      +                            "removal",
      +                            "revised_disclosure",
      +                            "moved_equivalent"
      +                          ],
      +                          "type": "string"
      +                        },
      +                        "signals": {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        }
      +                      },
      +                      "required": [
      +                        "kind",
      +                        "category",
      +                        "attention",
      +                        "confidence",
      +                        "signals",
      +                        "before",
      +                        "after"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "type": "array"
      +                  },
      +                  "highPriorityChangeCount": {
      +                    "minimum": 0,
      +                    "type": "integer"
      +                  },
      +                  "limitations": {
      +                    "items": {
      +                      "type": "string"
      +                    },
      +                    "type": "array"
      +                  },
      +                  "overallAttention": {
      +                    "enum": [
      +                      "high",
      +                      "medium",
      +                      "low",
      +                      "none"
      +                    ],
      +                    "type": "string"
      +                  },
      +                  "schemaVersion": {
      +                    "const": "disclosure-change.v1"
      +                  }
      +                },
      +                "required": [
      +                  "schemaVersion",
      +                  "changed",
      +                  "changes"
      +                ],
      +                "type": "object"
      +              }
      +            ]
      +          },
      +          "current": {
      +            "oneOf": [
      +              {
      +                "type": "null"
      +              },
      +              {
      +                "additionalProperties": false,
      +                "properties": {
      +                  "accession": {
      +                    "minLength": 1,
      +                    "type": "string"
      +                  },
      +                  "filingDate": {
      +                    "type": [
      +                      "string",
      +                      "null"
      +                    ]
      +                  },
      +                  "form": {
      +                    "type": [
      +                      "string",
      +                      "null"
      +                    ]
      +                  },
      +                  "reportDate": {
      +                    "type": [
      +                      "string",
      +                      "null"
      +                    ]
      +                  }
      +                },
      +                "required": [
      +                  "accession",
      +                  "form",
      +                  "filingDate",
      +                  "reportDate"
      +                ],
      +                "type": "object"
      +              }
      +            ]
      +          },
      +          "error": {
      +            "additionalProperties": true,
      +            "properties": {
      +              "code": {
      +                "type": "string"
      +              },
      +              "message": {
      +                "type": "string"
      +              },
      +              "retryable": {
      +                "type": "boolean"
      +              }
      +            },
      +            "required": [
      +              "code",
      +              "message",
      +              "retryable"
      +            ],
      +            "type": "object"
      +          },
      +          "limitation": {
      +            "type": "string"
      +          },
      +          "schemaVersion": {
      +            "const": "monitor-event.v1"
      +          },
      +          "searchScope": {
      +            "additionalProperties": true,
      +            "type": "object"
      +          },
      +          "status": {
      +            "enum": [
      +              "topic_change_detected",
      +              "no_detected_topic_change",
      +              "insufficient_baseline",
      +              "comparison_failed"
      +            ],
      +            "type": "string"
      +          }
      +        },
      +        "required": [
      +          "schemaVersion",
      +          "status",
      +          "current",
      +          "baseline",
      +          "change"
      +        ],
      +        "type": "object"
      +      },
      +      "type": "array"
      +    },
      +    "forms": {
      +      "items": {
      +        "type": "string"
      +      },
      +      "minItems": 1,
      +      "type": "array"
      +    },
      +    "haltedOnFailure": {
      +      "type": "boolean"
      +    },
      +    "highPriorityChangeCount": {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    "issuer": {
      +      "additionalProperties": true,
      +      "type": "object"
      +    },
      +    "latestAvailable": {
      +      "oneOf": [
      +        {
      +          "type": "null"
      +        },
      +        {
      +          "additionalProperties": false,
      +          "properties": {
      +            "accession": {
      +              "minLength": 1,
      +              "type": "string"
      +            },
      +            "filingDate": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            },
      +            "form": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            },
      +            "reportDate": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            }
      +          },
      +          "required": [
      +            "accession",
      +            "form",
      +            "filingDate",
      +            "reportDate"
      +          ],
      +          "type": "object"
      +        }
      +      ]
      +    },
      +    "limitations": {
      +      "items": {
      +        "type": "string"
      +      },
      +      "type": "array"
      +    },
      +    "mode": {
      +      "enum": [
      +        "initial_snapshot",
      +        "incremental"
      +      ],
      +      "type": "string"
      +    },
      +    "newFilingsDetected": {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    "overallAttention": {
      +      "enum": [
      +        "high",
      +        "medium",
      +        "low",
      +        "none"
      +      ],
      +      "type": "string"
      +    },
      +    "priorCheckpoint": {
      +      "oneOf": [
      +        {
      +          "type": "null"
      +        },
      +        {
      +          "additionalProperties": false,
      +          "properties": {
      +            "accession": {
      +              "minLength": 1,
      +              "type": "string"
      +            },
      +            "filingDate": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            },
      +            "form": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            },
      +            "reportDate": {
      +              "type": [
      +                "string",
      +                "null"
      +              ]
      +            }
      +          },
      +          "required": [
      +            "accession",
      +            "form",
      +            "filingDate",
      +            "reportDate"
      +          ],
      +          "type": "object"
      +        }
      +      ]
      +    },
      +    "purpose": {
      +      "type": "string"
      +    },
      +    "remainingNewFilings": {
      +      "minimum": 0,
      +      "type": "integer"
      +    },
      +    "schemaVersion": {
      +      "const": "monitor-check.v1"
      +    },
      +    "scope": {
      +      "additionalProperties": true,
      +      "type": "object"
      +    },
      +    "status": {
      +      "enum": [
      +        "no_new_filing",
      +        "checked",
      +        "change_detected",
      +        "partial_failure"
      +      ],
      +      "type": "string"
      +    },
      +    "topic": {
      +      "minLength": 1,
      +      "type": "string"
      +    },
      +    "truncated": {
      +      "type": "boolean"
      +    }
      +  },
      +  "required": [
      +    "schemaVersion",
      +    "purpose",
      +    "issuer",
      +    "topic",
      +    "forms",
      +    "mode",
      +    "status",
      +    "changeDetected",
      +    "checkpoint",
      +    "priorCheckpoint",
      +    "latestAvailable",
      +    "newFilingsDetected",
      +    "events",
      +    "truncated",
      +    "remainingNewFilings",
      +    "haltedOnFailure",
      +    "changeCount",
      +    "highPriorityChangeCount",
      +    "overallAttention",
      +    "attentionCounts",
      +    "scope",
      +    "agentGuidance"
      +  ],
      +  "type": "object"
      +}
  5. Changed1 schema field changed
    • changedInput schema / properties / sinceAccession / description
      Previous value: -"Checkpoint accession returned by the previous check. Omit for the first snapshot."New value: +"Checkpoint accession returned by the previous paid check. Omit for the first snapshot."
  6. First observed

TDQS

A4.8/5.0
Behavior5/5

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

Annotations already provide readOnlyHint, openWorldHint, idempotentHint, and destructiveHint, so the bar is lower, but the description still adds meaningful context: it is a paid 1.00 USD specialist operation, pre-payment validation rejects invalid or non-comparable work before charging, it uses retry-safe checkpoint state, separates documented changes from interpretation, and includes a clear caveat that attention is not a materiality judgment. 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.

Conciseness4/5

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

The description is dense and front-loaded with the core use case and cost/behavior context, and every sentence carries purpose. It is longer than average, but given the tool's complexity and sibling differentiation requirements, the length is justified. The opening phrasing about 'runtime commerce' is slightly awkward but not redundant.

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 complex 11-parameter tool with an output schema and rich annotations, the description is comprehensive: it covers primary purpose, valid inputs, alternative tools, payment and validation behavior, checkpoint retry semantics, and the limits of the tool's interpretation. Nothing essential for an agent to select or invoke it correctly appears 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?

Schema coverage is 100%, so the schema already documents all parameters; the baseline is 3. The description adds genuine value by explaining the financial_risk profile in detail (liquidity, debt, dilution/equity-issuance, changed-risk report), clarifying topic vs profile exclusivity, and referencing the checkpoint/sinceAccession mechanism in behavioral terms.

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 states a specific verb+resource: prioritize changes in newly filed disclosures against the prior filing of the same form for one issuer, with compact before/after evidence. It also explicitly names sibling tools it is not, such as check_material_filing_changes and compare_filings, making the tool's distinct role clear.

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

Usage Guidelines5/5

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

The description says when to use this tool ('newly filed disclosures prioritized against the prior filing of the same form', 'one issuer') and gives explicit alternatives: check_material_filing_changes for fast low-cost same-form comparisons, compare_filings for raw structural diffs, and list_filings when coverage is uncertain. This is strong, unambiguous routing 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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