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EchelonGraph MCP Server

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Vendor advisories for one CVE

vendor_advisories_for_cve
Read-onlyIdempotent

Retrieve vendor-published advisories naming a CVE, ordered by vendor date, with severity, CVSS scores, remediation states, and coverage details from Microsoft, Red Hat, Cisco, and GitHub.

Instructions

The vendor-published advisories that name one CVE, newest first, at most 20: for each, vendor, vendor_display_name, vendor_advisory_id, title, severity and cvss_v3_score where the vendor gives them. Covers the vendor feeds EchelonGraph polls, for example Microsoft MSRC, Red Hat, Cisco, Palo Alto Networks and GitHub GHSA; an empty answer means none of the advisories EchelonGraph holds names the CVE, not that no vendor published one. Each advisory carries vendor_published_at (the vendor's date), our_first_seen_at (when EchelonGraph first recorded it) and withdrawn (true: the vendor rescinded it). Each advisory also carries rejected_cve_ids: the CVE IDs it names whose CVE record was rejected (withdrawn) by its numbering authority, which are not active vulnerabilities. The answer's cve_rejected is true when the CVE record of the CVE asked for was rejected. Each row has remediation_kinds and remediation_state (not_parsed is not none). coverage gives returned, cap, at_cap (true: there may be more) and cve_year; vendor_windows, each vendor's held window: vendor, advisories, earliest_vendor_published_at, latest_vendor_published_at, held_since (where that window begins) and history_backfill (in_progress or not_started: older advisories not all held yet); and vendors_not_fully_held, the vendors absent from the answer of which EchelonGraph holds none, whose held_since is after 1 January of cve_year or not known, or whose history is still being read, which the note names. An advisory published before its vendor's held_since may not be held, so no advisory from a vendor is not a finding that it published none. Past 30,000 characters of JSON, the first text block holds data cut to fit, and the note says what the cut leaves out and where to read it (TEXT CUT); so is structured data (DATA CUT), unless full: true. Cut, each row keeps vendor, vendor_advisory_id, title, severity and cve_ids at least, its strings and lists shortened.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
fullNotrue: data in the structured result is the answer whole, however long. Without it, a structured result past 30,000 characters of JSON has its data cut (DATA CUT): in an order the note states, the entries of its longest lists keep only some of their fields, and then the lists only some of their entries; data_truncated is true, and truncated gives each list cut with its total, the number returned and whether its entries are thinned. Whole data is for a program; a client that sizes structured results, as Claude Code does against MAX_MCP_OUTPUT_TOKENS, can refuse an answer past its cap.
cve_idYesa CVE ID, e.g. CVE-2024-21412

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changedv3.0.2
    • addedInput schema / properties / full
      Added value: +{
      +  "description": "true: data in the structured result is the answer whole, however long. Without it, a structured result past 30,000 characters of JSON has its data cut (DATA CUT): in an order the note states, the entries of its longest lists keep only some of their fields, and then the lists only some of their entries; data_truncated is true, and truncated gives each list cut with its total, the number returned and whether its entries are thinned. Whole data is for a program; a client that sizes structured results, as Claude Code does against MAX_MCP_OUTPUT_TOKENS, can refuse an answer past its cap.",
      +  "type": "boolean"
      +}
    • changedOutput schema / oneOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "coverage": {
      -        "anyOf": [
      -          {
      -            "additionalProperties": false,
      -            "properties": {
      -              "at_cap": {
      -                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      -                "type": [
      -                  "boolean",
      -                  "null"
      -                ]
      -              },
      -              "cap": {
      -                "description": "The most the API returns for one CVE, newest first.",
      -                "type": "number"
      -              },
      -              "cve_year": {
      -                "description": "The year in the CVE ID.",
      -                "type": "number"
      -              },
      -              "returned": {
      -                "description": "The advisories in this answer.",
      -                "type": [
      -                  "number",
      -                  "null"
      -                ]
      -              },
      -              "vendor_windows": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "additionalProperties": false,
      -                      "description": "A vendor's window in what EchelonGraph holds: vendor, advisories (how many EchelonGraph holds from that vendor), earliest_vendor_published_at and latest_vendor_published_at (the earliest and latest vendor_published_at among them, null when none is held), held_since (the start of the window EchelonGraph has read that vendor's advisories from, before which an advisory may not be held; null when none is held or the API does not say; for a vendor with no history read it is when its feed was first read from, and can be years after earliest_vendor_published_at, since an older advisory is held when the vendor revised it later, not the ones published beside it) and history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried).",
      -                      "properties": {
      -                        "advisories": {
      -                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      -                          "type": [
      -                            "number",
      -                            "null"
      -                          ]
      -                        },
      -                        "earliest_vendor_published_at": {
      -                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "held_since": {
      -                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "history_backfill": {
      -                          "anyOf": [
      -                            {
      -                              "anyOf": [
      -                                {
      -                                  "enum": [
      -                                    "complete",
      -                                    "in_progress",
      -                                    "not_started",
      -                                    "not_supported"
      -                                  ],
      -                                  "type": "string"
      -                                },
      -                                {
      -                                  "type": "string"
      -                                }
      -                              ]
      -                            },
      -                            {
      -                              "type": "null"
      -                            }
      -                          ],
      -                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      -                        },
      -                        "latest_vendor_published_at": {
      -                          "description": "The latest vendor_published_at among them; null when none is held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "vendor": {
      -                          "description": "The vendor slug.",
      -                          "type": "string"
      -                        },
      -                        "vendor_display_name": {
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        }
      -                      },
      -                      "required": [
      -                        "vendor",
      -                        "vendor_display_name",
      -                        "advisories",
      -                        "earliest_vendor_published_at",
      -                        "latest_vendor_published_at",
      -                        "held_since",
      -                        "history_backfill"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      -              },
      -              "vendors_not_fully_held": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "type": "string"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      -              }
      -            },
      -            "required": [
      -              "returned",
      -              "cap",
      -              "at_cap",
      -              "cve_year",
      -              "vendor_windows",
      -              "vendors_not_fully_held"
      -            ],
      -            "type": "object"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "What the answer covers; null where the answer says nothing about it."
      -      },
      -      "data": {
      -        "additionalProperties": {},
      -        "properties": {
      -          "advisories": {
      -            "anyOf": [
      -              {
      -                "items": {
      -                  "additionalProperties": {},
      -                  "properties": {
      -                    "advisory_id": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "affected_products": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "type": "string"
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ]
      -                    },
      -                    "cve_ids": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "type": "string"
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ]
      -                    },
      -                    "cvss_v3_score": {
      -                      "type": [
      -                        "number",
      -                        "null"
      -                      ]
      -                    },
      -                    "our_first_seen_at": {
      -                      "description": "When EchelonGraph first recorded the advisory; not the vendor's date.",
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "rejected_cve_ids": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "type": "string"
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ],
      -                      "description": "The CVE IDs this advisory names whose CVE record was rejected (withdrawn) by its numbering authority: each is a rejected record, not an active vulnerability, whatever the advisory's text says. The vendor's withdrawn is separate and unchanged by it. [] when none is; null when that could not be checked."
      -                    },
      -                    "remediation_kinds": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "anyOf": [
      -                              {
      -                                "enum": [
      -                                  "vendor_fix",
      -                                  "workaround",
      -                                  "mitigation",
      -                                  "no_fix_planned",
      -                                  "none_available",
      -                                  "other"
      -                                ],
      -                                "type": "string"
      -                              },
      -                              {
      -                                "type": "string"
      -                              }
      -                            ]
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ],
      -                      "description": "The kinds of remediation the advisory lists (for the CVE asked about, on a by-cve row), each the vendor's own category, never read from the text: vendor_fix, workaround, mitigation, no_fix_planned, none_available or other. [] with remediation_state not_parsed is not a finding that it lists none."
      -                    },
      -                    "remediation_state": {
      -                      "anyOf": [
      -                        {
      -                          "anyOf": [
      -                            {
      -                              "enum": [
      -                                "parsed",
      -                                "none_in_source",
      -                                "not_parsed",
      -                                "withdrawn"
      -                              ],
      -                              "type": "string"
      -                            },
      -                            {
      -                              "type": "string"
      -                            }
      -                          ]
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ],
      -                      "description": "parsed; none_in_source (EchelonGraph read the vendor's remediation, and it lists none for this CVE, which is not a finding that no fix exists); not_parsed (EchelonGraph does not read this vendor's remediation, or has not yet read this advisory: not a finding of none); withdrawn (the vendor rescinded the advisory)."
      -                    },
      -                    "severity": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "summary": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "title": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_advisory_id": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_display_name": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_published_at": {
      -                      "description": "The date the vendor gives for the advisory.",
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "withdrawn": {
      -                      "description": "true: the vendor withdrew (rescinded) this advisory, so it is a withdrawn advisory, not a current one.",
      -                      "type": [
      -                        "boolean",
      -                        "null"
      -                      ]
      -                    }
      -                  },
      -                  "type": "object"
      -                },
      -                "type": "array"
      -              },
      -              {
      -                "type": "null"
      -              }
      -            ]
      -          },
      -          "cve_id": {
      -            "type": [
      -              "string",
      -              "null"
      -            ]
      -          },
      -          "cve_rejected": {
      -            "description": "true: the CVE record of cve_id was rejected (withdrawn) by its numbering authority, so these advisories name a rejected record, not an active vulnerability; null when that could not be checked.",
      -            "type": [
      -              "boolean",
      -              "null"
      -            ]
      -          },
      -          "total": {
      -            "type": [
      -              "number",
      -              "null"
      -            ]
      -          }
      -        },
      -        "type": "object"
      -      },
      -      "freshness": {
      -        "description": "The producing radar's last completed check (last_run_at), where the API serves one.",
      -        "type": "null"
      -      },
      -      "measured_at": {
      -        "anyOf": [
      -          {
      -            "description": "An RFC 3339 instant.",
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "When the underlying observation was made, as the API states it; null when the answer does not say or holds no observation."
      -      },
      -      "method": {
      -        "description": "How the numbers were produced.",
      -        "type": "string"
      -      },
      -      "notes": {
      -        "description": "Caveats, one sentence each.",
      -        "items": {
      -          "type": "string"
      -        },
      -        "type": "array"
      -      },
      -      "state": {
      -        "description": "measured: a measurement of what was asked; an exposure count is measured only with measured_at and method. not_assessed: the answer holds no dated measurement of what was asked, so no count in it is presented as one; it can still relay a count, as what the source holds on record, undated, and its notes (and exposure_state, where the result carries it) say what each count is.",
      -        "enum": [
      -          "measured",
      -          "not_assessed"
      -        ],
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "state",
      -      "measured_at",
      -      "method",
      -      "coverage",
      -      "freshness",
      -      "notes",
      -      "data"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "coverage": {
      -        "anyOf": [
      -          {
      -            "additionalProperties": false,
      -            "properties": {
      -              "at_cap": {
      -                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      -                "type": [
      -                  "boolean",
      -                  "null"
      -                ]
      -              },
      -              "cap": {
      -                "description": "The most the API returns for one CVE, newest first.",
      -                "type": "number"
      -              },
      -              "cve_year": {
      -                "description": "The year in the CVE ID.",
      -                "type": "number"
      -              },
      -              "returned": {
      -                "description": "The advisories in this answer.",
      -                "type": [
      -                  "number",
      -                  "null"
      -                ]
      -              },
      -              "vendor_windows": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "additionalProperties": false,
      -                      "description": "A vendor's window in what EchelonGraph holds: vendor, advisories (how many EchelonGraph holds from that vendor), earliest_vendor_published_at and latest_vendor_published_at (the earliest and latest vendor_published_at among them, null when none is held), held_since (the start of the window EchelonGraph has read that vendor's advisories from, before which an advisory may not be held; null when none is held or the API does not say; for a vendor with no history read it is when its feed was first read from, and can be years after earliest_vendor_published_at, since an older advisory is held when the vendor revised it later, not the ones published beside it) and history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried).",
      -                      "properties": {
      -                        "advisories": {
      -                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      -                          "type": [
      -                            "number",
      -                            "null"
      -                          ]
      -                        },
      -                        "earliest_vendor_published_at": {
      -                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "held_since": {
      -                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "history_backfill": {
      -                          "anyOf": [
      -                            {
      -                              "anyOf": [
      -                                {
      -                                  "enum": [
      -                                    "complete",
      -                                    "in_progress",
      -                                    "not_started",
      -                                    "not_supported"
      -                                  ],
      -                                  "type": "string"
      -                                },
      -                                {
      -                                  "type": "string"
      -                                }
      -                              ]
      -                            },
      -                            {
      -                              "type": "null"
      -                            }
      -                          ],
      -                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      -                        },
      -                        "latest_vendor_published_at": {
      -                          "description": "The latest vendor_published_at among them; null when none is held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "vendor": {
      -                          "description": "The vendor slug.",
      -                          "type": "string"
      -                        },
      -                        "vendor_display_name": {
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        }
      -                      },
      -                      "required": [
      -                        "vendor",
      -                        "vendor_display_name",
      -                        "advisories",
      -                        "earliest_vendor_published_at",
      -                        "latest_vendor_published_at",
      -                        "held_since",
      -                        "history_backfill"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      -              },
      -              "vendors_not_fully_held": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "type": "string"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      -              }
      -            },
      -            "required": [
      -              "returned",
      -              "cap",
      -              "at_cap",
      -              "cve_year",
      -              "vendor_windows",
      -              "vendors_not_fully_held"
      -            ],
      -            "type": "object"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "error": {
      -        "additionalProperties": false,
      -        "properties": {
      -          "kind": {
      -            "description": "What failed: the request (network, timeout), the answer (http, not_json, not_object, unexpected_shape), the input, or this server.",
      -            "enum": [
      -              "network",
      -              "timeout",
      -              "http",
      -              "not_json",
      -              "not_object",
      -              "invalid_input",
      -              "internal",
      -              "unexpected_shape",
      -              "radars"
      -            ],
      -            "type": "string"
      -          },
      -          "message": {
      -            "description": "The cause: the API's own message, or what went wrong.",
      -            "type": "string"
      -          },
      -          "path": {
      -            "description": "The API path requested, when a request was made.",
      -            "type": [
      -              "string",
      -              "null"
      -            ]
      -          },
      -          "status": {
      -            "anyOf": [
      -              {
      -                "maximum": 9007199254740991,
      -                "minimum": -9007199254740991,
      -                "type": "integer"
      -              },
      -              {
      -                "type": "null"
      -              }
      -            ],
      -            "description": "The HTTP status, when the API answered one."
      -          }
      -        },
      -        "required": [
      -          "kind",
      -          "path",
      -          "status",
      -          "message"
      -        ],
      -        "type": "object"
      -      },
      -      "freshness": {
      -        "type": "null"
      -      },
      -      "measured_at": {
      -        "type": "null"
      -      },
      -      "method": {
      -        "type": "null"
      -      },
      -      "notes": {
      -        "description": "Caveats, one sentence each.",
      -        "items": {
      -          "type": "string"
      -        },
      -        "type": "array"
      -      },
      -      "state": {
      -        "description": "failed: the lookup did not complete. invalid_input: the input was refused, so nothing was looked up. Neither is a finding.",
      -        "enum": [
      -          "failed",
      -          "invalid_input"
      -        ],
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "state",
      -      "measured_at",
      -      "method",
      -      "coverage",
      -      "freshness",
      -      "notes",
      -      "error"
      -    ],
      -    "type": "object"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": {},
      +    "properties": {
      +      "coverage": {
      +        "anyOf": [
      +          {
      +            "additionalProperties": false,
      +            "properties": {
      +              "at_cap": {
      +                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      +                "type": [
      +                  "boolean",
      +                  "null"
      +                ]
      +              },
      +              "cap": {
      +                "description": "The most the API returns for one CVE, newest first.",
      +                "type": "number"
      +              },
      +              "cve_year": {
      +                "description": "The year in the CVE ID.",
      +                "type": "number"
      +              },
      +              "returned": {
      +                "description": "The advisories in this answer.",
      +                "type": [
      +                  "number",
      +                  "null"
      +                ]
      +              },
      +              "vendor_windows": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "additionalProperties": false,
      +                      "description": "A vendor's window in what EchelonGraph holds: vendor, advisories (how many EchelonGraph holds from that vendor), earliest_vendor_published_at and latest_vendor_published_at (the earliest and latest vendor_published_at among them, null when none is held), held_since (the start of the window EchelonGraph has read that vendor's advisories from, before which an advisory may not be held; null when none is held or the API does not say; for a vendor with no history read it is when its feed was first read from, and can be years after earliest_vendor_published_at, since an older advisory is held when the vendor revised it later, not the ones published beside it) and history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried).",
      +                      "properties": {
      +                        "advisories": {
      +                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      +                          "type": [
      +                            "number",
      +                            "null"
      +                          ]
      +                        },
      +                        "earliest_vendor_published_at": {
      +                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "held_since": {
      +                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "history_backfill": {
      +                          "anyOf": [
      +                            {
      +                              "anyOf": [
      +                                {
      +                                  "enum": [
      +                                    "complete",
      +                                    "in_progress",
      +                                    "not_started",
      +                                    "not_supported"
      +                                  ],
      +                                  "type": "string"
      +                                },
      +                                {
      +                                  "type": "string"
      +                                }
      +                              ]
      +                            },
      +                            {
      +                              "type": "null"
      +                            }
      +                          ],
      +                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      +                        },
      +                        "latest_vendor_published_at": {
      +                          "description": "The latest vendor_published_at among them; null when none is held.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "vendor": {
      +                          "description": "The vendor slug.",
      +                          "type": "string"
      +                        },
      +                        "vendor_display_name": {
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        }
      +                      },
      +                      "required": [
      +                        "vendor",
      +                        "vendor_display_name",
      +                        "advisories",
      +                        "earliest_vendor_published_at",
      +                        "latest_vendor_published_at",
      +                        "held_since",
      +                        "history_backfill"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      +              },
      +              "vendors_not_fully_held": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "type": "string"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      +              }
      +            },
      +            "required": [
      +              "returned",
      +              "cap",
      +              "at_cap",
      +              "cve_year",
      +              "vendor_windows",
      +              "vendors_not_fully_held"
      +            ],
      +            "type": "object"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "What the answer covers; null where the answer says nothing about it."
      +      },
      +      "data": {
      +        "additionalProperties": {},
      +        "properties": {
      +          "advisories": {
      +            "anyOf": [
      +              {
      +                "items": {
      +                  "additionalProperties": {},
      +                  "properties": {
      +                    "advisory_id": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "affected_products": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ]
      +                    },
      +                    "cve_ids": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ]
      +                    },
      +                    "cvss_v3_score": {
      +                      "type": [
      +                        "number",
      +                        "null"
      +                      ]
      +                    },
      +                    "our_first_seen_at": {
      +                      "description": "When EchelonGraph first recorded the advisory; not the vendor's date.",
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "rejected_cve_ids": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ],
      +                      "description": "The CVE IDs this advisory names whose CVE record was rejected (withdrawn) by its numbering authority: each is a rejected record, not an active vulnerability, whatever the advisory's text says. The vendor's withdrawn is separate and unchanged by it. [] when none is; null when that could not be checked."
      +                    },
      +                    "remediation_kinds": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "anyOf": [
      +                              {
      +                                "enum": [
      +                                  "vendor_fix",
      +                                  "workaround",
      +                                  "mitigation",
      +                                  "no_fix_planned",
      +                                  "none_available",
      +                                  "other"
      +                                ],
      +                                "type": "string"
      +                              },
      +                              {
      +                                "type": "string"
      +                              }
      +                            ]
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ],
      +                      "description": "The kinds of remediation the advisory lists (for the CVE asked about, on a by-cve row), each the vendor's own category, never read from the text: vendor_fix, workaround, mitigation, no_fix_planned, none_available or other. [] with remediation_state not_parsed is not a finding that it lists none."
      +                    },
      +                    "remediation_state": {
      +                      "anyOf": [
      +                        {
      +                          "anyOf": [
      +                            {
      +                              "enum": [
      +                                "parsed",
      +                                "none_in_source",
      +                                "not_parsed",
      +                                "withdrawn"
      +                              ],
      +                              "type": "string"
      +                            },
      +                            {
      +                              "type": "string"
      +                            }
      +                          ]
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ],
      +                      "description": "parsed; none_in_source (EchelonGraph read the vendor's remediation, and it lists none for this CVE, which is not a finding that no fix exists); not_parsed (EchelonGraph does not read this vendor's remediation, or has not yet read this advisory: not a finding of none); withdrawn (the vendor rescinded the advisory)."
      +                    },
      +                    "severity": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "summary": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "title": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_advisory_id": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_display_name": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_published_at": {
      +                      "description": "The date the vendor gives for the advisory.",
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "withdrawn": {
      +                      "description": "true: the vendor withdrew (rescinded) this advisory, so it is a withdrawn advisory, not a current one.",
      +                      "type": [
      +                        "boolean",
      +                        "null"
      +                      ]
      +                    }
      +                  },
      +                  "type": "object"
      +                },
      +                "type": "array"
      +              },
      +              {
      +                "type": "null"
      +              }
      +            ]
      +          },
      +          "cve_id": {
      +            "type": [
      +              "string",
      +              "null"
      +            ]
      +          },
      +          "cve_rejected": {
      +            "description": "true: the CVE record of cve_id was rejected (withdrawn) by its numbering authority, so these advisories name a rejected record, not an active vulnerability; null when that could not be checked.",
      +            "type": [
      +              "boolean",
      +              "null"
      +            ]
      +          },
      +          "total": {
      +            "type": [
      +              "number",
      +              "null"
      +            ]
      +          }
      +        },
      +        "type": "object"
      +      },
      +      "data_truncated": {
      +        "description": "false: data is the answer whole. true: the structured result would pass 30,000 characters of JSON with data whole, so data is cut (DATA CUT): the entries of some of its lists keep only some of their fields, or the lists only some of their entries, truncated gives each, and no string is shortened. The same call with full: true returns data whole.",
      +        "type": "boolean"
      +      },
      +      "freshness": {
      +        "description": "The producing radar's last completed check (last_run_at), where the API serves one.",
      +        "type": "null"
      +      },
      +      "measured_at": {
      +        "anyOf": [
      +          {
      +            "description": "An RFC 3339 instant.",
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "When the underlying observation was made, as the API states it; null when the answer does not say or holds no observation."
      +      },
      +      "method": {
      +        "description": "How the numbers were produced.",
      +        "type": "string"
      +      },
      +      "notes": {
      +        "description": "Caveats, one sentence each.",
      +        "items": {
      +          "type": "string"
      +        },
      +        "type": "array"
      +      },
      +      "state": {
      +        "description": "measured: a measurement of what was asked; an exposure count is measured only with measured_at and method. not_assessed: the answer holds no dated measurement of what was asked, so no count in it is presented as one; it can still relay a count, as what the source holds on record, undated, and its notes (and exposure_state, where the result carries it) say what each count is.",
      +        "enum": [
      +          "measured",
      +          "not_assessed"
      +        ],
      +        "type": "string"
      +      },
      +      "truncated": {
      +        "additionalProperties": {
      +          "additionalProperties": false,
      +          "properties": {
      +            "returned": {
      +              "maximum": 9007199254740991,
      +              "minimum": 0,
      +              "type": "integer"
      +            },
      +            "thinned": {
      +              "const": true,
      +              "type": "boolean"
      +            },
      +            "total": {
      +              "maximum": 9007199254740991,
      +              "minimum": 0,
      +              "type": "integer"
      +            }
      +          },
      +          "required": [
      +            "total",
      +            "returned"
      +          ],
      +          "type": "object"
      +        },
      +        "description": "Present when data_truncated is true: each list of data that was cut, by its path in data (a dot between the names of an object and a list inside it), with total, its entries in the answer, returned, the entries data holds, and thinned, true when each of them keeps only some of its fields.",
      +        "propertyNames": {
      +          "type": "string"
      +        },
      +        "type": "object"
      +      }
      +    },
      +    "required": [
      +      "state",
      +      "measured_at",
      +      "method",
      +      "coverage",
      +      "freshness",
      +      "notes",
      +      "data_truncated",
      +      "data"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "coverage": {
      +        "anyOf": [
      +          {
      +            "additionalProperties": false,
      +            "properties": {
      +              "at_cap": {
      +                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      +                "type": [
      +                  "boolean",
      +                  "null"
      +                ]
      +              },
      +              "cap": {
      +                "description": "The most the API returns for one CVE, newest first.",
      +                "type": "number"
      +              },
      +              "cve_year": {
      +                "description": "The year in the CVE ID.",
      +                "type": "number"
      +              },
      +              "returned": {
      +                "description": "The advisories in this answer.",
      +                "type": [
      +                  "number",
      +                  "null"
      +                ]
      +              },
      +              "vendor_windows": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "additionalProperties": false,
      +                      "description": "A vendor's window in what EchelonGraph holds: vendor, advisories (how many EchelonGraph holds from that vendor), earliest_vendor_published_at and latest_vendor_published_at (the earliest and latest vendor_published_at among them, null when none is held), held_since (the start of the window EchelonGraph has read that vendor's advisories from, before which an advisory may not be held; null when none is held or the API does not say; for a vendor with no history read it is when its feed was first read from, and can be years after earliest_vendor_published_at, since an older advisory is held when the vendor revised it later, not the ones published beside it) and history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried).",
      +                      "properties": {
      +                        "advisories": {
      +                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      +                          "type": [
      +                            "number",
      +                            "null"
      +                          ]
      +                        },
      +                        "earliest_vendor_published_at": {
      +                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "held_since": {
      +                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "history_backfill": {
      +                          "anyOf": [
      +                            {
      +                              "anyOf": [
      +                                {
      +                                  "enum": [
      +                                    "complete",
      +                                    "in_progress",
      +                                    "not_started",
      +                                    "not_supported"
      +                                  ],
      +                                  "type": "string"
      +                                },
      +                                {
      +                                  "type": "string"
      +                                }
      +                              ]
      +                            },
      +                            {
      +                              "type": "null"
      +                            }
      +                          ],
      +                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      +                        },
      +                        "latest_vendor_published_at": {
      +                          "description": "The latest vendor_published_at among them; null when none is held.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "vendor": {
      +                          "description": "The vendor slug.",
      +                          "type": "string"
      +                        },
      +                        "vendor_display_name": {
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        }
      +                      },
      +                      "required": [
      +                        "vendor",
      +                        "vendor_display_name",
      +                        "advisories",
      +                        "earliest_vendor_published_at",
      +                        "latest_vendor_published_at",
      +                        "held_since",
      +                        "history_backfill"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      +              },
      +              "vendors_not_fully_held": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "type": "string"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      +              }
      +            },
      +            "required": [
      +              "returned",
      +              "cap",
      +              "at_cap",
      +              "cve_year",
      +              "vendor_windows",
      +              "vendors_not_fully_held"
      +            ],
      +            "type": "object"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "error": {
      +        "additionalProperties": false,
      +        "properties": {
      +          "kind": {
      +            "description": "What failed: the request (network, timeout), the answer (http, not_json, not_object, unexpected_shape), the input, or this server.",
      +            "enum": [
      +              "network",
      +              "timeout",
      +              "http",
      +              "not_json",
      +              "not_object",
      +              "invalid_input",
      +              "internal",
      +              "unexpected_shape",
      +              "radars"
      +            ],
      +            "type": "string"
      +          },
      +          "message": {
      +            "description": "The cause: the API's own message, or what went wrong.",
      +            "type": "string"
      +          },
      +          "path": {
      +            "description": "The API path requested, when a request was made.",
      +            "type": [
      +              "string",
      +              "null"
      +            ]
      +          },
      +          "status": {
      +            "anyOf": [
      +              {
      +                "maximum": 9007199254740991,
      +                "minimum": -9007199254740991,
      +                "type": "integer"
      +              },
      +              {
      +                "type": "null"
      +              }
      +            ],
      +            "description": "The HTTP status, when the API answered one."
      +          }
      +        },
      +        "required": [
      +          "kind",
      +          "path",
      +          "status",
      +          "message"
      +        ],
      +        "type": "object"
      +      },
      +      "freshness": {
      +        "type": "null"
      +      },
      +      "measured_at": {
      +        "type": "null"
      +      },
      +      "method": {
      +        "type": "null"
      +      },
      +      "notes": {
      +        "description": "Caveats, one sentence each.",
      +        "items": {
      +          "type": "string"
      +        },
      +        "type": "array"
      +      },
      +      "state": {
      +        "description": "failed: the lookup did not complete. invalid_input: the input was refused, so nothing was looked up. Neither is a finding.",
      +        "enum": [
      +          "failed",
      +          "invalid_input"
      +        ],
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "state",
      +      "measured_at",
      +      "method",
      +      "coverage",
      +      "freshness",
      +      "notes",
      +      "error"
      +    ],
      +    "type": "object"
      +  }
      +]
  2. Changed1 schema field changedv2.7.0
    • changedOutput schema / oneOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "coverage": {
      -        "anyOf": [
      -          {
      -            "additionalProperties": false,
      -            "properties": {
      -              "at_cap": {
      -                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      -                "type": [
      -                  "boolean",
      -                  "null"
      -                ]
      -              },
      -              "cap": {
      -                "description": "The most the API returns for one CVE, newest first.",
      -                "type": "number"
      -              },
      -              "cve_year": {
      -                "description": "The year in the CVE ID.",
      -                "type": "number"
      -              },
      -              "returned": {
      -                "description": "The advisories in this answer.",
      -                "type": [
      -                  "number",
      -                  "null"
      -                ]
      -              },
      -              "vendor_windows": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "advisories": {
      -                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      -                          "type": [
      -                            "number",
      -                            "null"
      -                          ]
      -                        },
      -                        "earliest_vendor_published_at": {
      -                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "held_since": {
      -                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "history_backfill": {
      -                          "anyOf": [
      -                            {
      -                              "anyOf": [
      -                                {
      -                                  "enum": [
      -                                    "complete",
      -                                    "in_progress",
      -                                    "not_started",
      -                                    "not_supported"
      -                                  ],
      -                                  "type": "string"
      -                                },
      -                                {
      -                                  "type": "string"
      -                                }
      -                              ]
      -                            },
      -                            {
      -                              "type": "null"
      -                            }
      -                          ],
      -                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      -                        },
      -                        "latest_vendor_published_at": {
      -                          "description": "The latest vendor_published_at among them; null when none is held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "vendor": {
      -                          "description": "The vendor slug.",
      -                          "type": "string"
      -                        },
      -                        "vendor_display_name": {
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        }
      -                      },
      -                      "required": [
      -                        "vendor",
      -                        "vendor_display_name",
      -                        "advisories",
      -                        "earliest_vendor_published_at",
      -                        "latest_vendor_published_at",
      -                        "held_since",
      -                        "history_backfill"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      -              },
      -              "vendors_not_fully_held": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "type": "string"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      -              }
      -            },
      -            "required": [
      -              "returned",
      -              "cap",
      -              "at_cap",
      -              "cve_year",
      -              "vendor_windows",
      -              "vendors_not_fully_held"
      -            ],
      -            "type": "object"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "What the answer covers; null where the answer says nothing about it."
      -      },
      -      "data": {
      -        "additionalProperties": {},
      -        "properties": {
      -          "advisories": {
      -            "anyOf": [
      -              {
      -                "items": {
      -                  "additionalProperties": {},
      -                  "properties": {
      -                    "advisory_id": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "affected_products": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "type": "string"
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ]
      -                    },
      -                    "cve_ids": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "type": "string"
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ]
      -                    },
      -                    "cvss_v3_score": {
      -                      "type": [
      -                        "number",
      -                        "null"
      -                      ]
      -                    },
      -                    "our_first_seen_at": {
      -                      "description": "When EchelonGraph first recorded the advisory; not the vendor's date.",
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "severity": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "summary": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "title": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_advisory_id": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_display_name": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_published_at": {
      -                      "description": "The date the vendor gives for the advisory.",
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "withdrawn": {
      -                      "description": "true: the vendor withdrew (rescinded) this advisory; report it as withdrawn.",
      -                      "type": [
      -                        "boolean",
      -                        "null"
      -                      ]
      -                    }
      -                  },
      -                  "type": "object"
      -                },
      -                "type": "array"
      -              },
      -              {
      -                "type": "null"
      -              }
      -            ]
      -          },
      -          "cve_id": {
      -            "type": [
      -              "string",
      -              "null"
      -            ]
      -          },
      -          "total": {
      -            "type": [
      -              "number",
      -              "null"
      -            ]
      -          }
      -        },
      -        "type": "object"
      -      },
      -      "freshness": {
      -        "description": "The producing radar's last completed check (last_run_at), where the API serves one.",
      -        "type": "null"
      -      },
      -      "measured_at": {
      -        "anyOf": [
      -          {
      -            "description": "An RFC 3339 instant.",
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "When the underlying observation was made, as the API states it; null when the answer does not say or holds no observation."
      -      },
      -      "method": {
      -        "description": "How the numbers were produced.",
      -        "type": "string"
      -      },
      -      "notes": {
      -        "description": "Caveats, one sentence each.",
      -        "items": {
      -          "type": "string"
      -        },
      -        "type": "array"
      -      },
      -      "state": {
      -        "description": "measured: a measurement of what was asked; an exposure count is measured only with measured_at and method. not_assessed: the answer holds no dated measurement of what was asked, so no count in it is presented as one; it can still relay a count, as what the source holds on record, undated, and its notes (and exposure_state, where the result carries it) say what each count is.",
      -        "enum": [
      -          "measured",
      -          "not_assessed"
      -        ],
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "state",
      -      "measured_at",
      -      "method",
      -      "coverage",
      -      "freshness",
      -      "notes",
      -      "data"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "coverage": {
      -        "anyOf": [
      -          {
      -            "additionalProperties": false,
      -            "properties": {
      -              "at_cap": {
      -                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      -                "type": [
      -                  "boolean",
      -                  "null"
      -                ]
      -              },
      -              "cap": {
      -                "description": "The most the API returns for one CVE, newest first.",
      -                "type": "number"
      -              },
      -              "cve_year": {
      -                "description": "The year in the CVE ID.",
      -                "type": "number"
      -              },
      -              "returned": {
      -                "description": "The advisories in this answer.",
      -                "type": [
      -                  "number",
      -                  "null"
      -                ]
      -              },
      -              "vendor_windows": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "advisories": {
      -                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      -                          "type": [
      -                            "number",
      -                            "null"
      -                          ]
      -                        },
      -                        "earliest_vendor_published_at": {
      -                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "held_since": {
      -                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "history_backfill": {
      -                          "anyOf": [
      -                            {
      -                              "anyOf": [
      -                                {
      -                                  "enum": [
      -                                    "complete",
      -                                    "in_progress",
      -                                    "not_started",
      -                                    "not_supported"
      -                                  ],
      -                                  "type": "string"
      -                                },
      -                                {
      -                                  "type": "string"
      -                                }
      -                              ]
      -                            },
      -                            {
      -                              "type": "null"
      -                            }
      -                          ],
      -                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      -                        },
      -                        "latest_vendor_published_at": {
      -                          "description": "The latest vendor_published_at among them; null when none is held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "vendor": {
      -                          "description": "The vendor slug.",
      -                          "type": "string"
      -                        },
      -                        "vendor_display_name": {
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        }
      -                      },
      -                      "required": [
      -                        "vendor",
      -                        "vendor_display_name",
      -                        "advisories",
      -                        "earliest_vendor_published_at",
      -                        "latest_vendor_published_at",
      -                        "held_since",
      -                        "history_backfill"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      -              },
      -              "vendors_not_fully_held": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "type": "string"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      -              }
      -            },
      -            "required": [
      -              "returned",
      -              "cap",
      -              "at_cap",
      -              "cve_year",
      -              "vendor_windows",
      -              "vendors_not_fully_held"
      -            ],
      -            "type": "object"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "error": {
      -        "additionalProperties": false,
      -        "properties": {
      -          "kind": {
      -            "description": "What failed: the request (network, timeout), the answer (http, not_json, not_object, unexpected_shape), the input, or this server.",
      -            "enum": [
      -              "network",
      -              "timeout",
      -              "http",
      -              "not_json",
      -              "not_object",
      -              "invalid_input",
      -              "internal",
      -              "unexpected_shape",
      -              "radars"
      -            ],
      -            "type": "string"
      -          },
      -          "message": {
      -            "description": "The cause: the API's own message, or what went wrong.",
      -            "type": "string"
      -          },
      -          "path": {
      -            "description": "The API path requested, when a request was made.",
      -            "type": [
      -              "string",
      -              "null"
      -            ]
      -          },
      -          "status": {
      -            "anyOf": [
      -              {
      -                "maximum": 9007199254740991,
      -                "minimum": -9007199254740991,
      -                "type": "integer"
      -              },
      -              {
      -                "type": "null"
      -              }
      -            ],
      -            "description": "The HTTP status, when the API answered one."
      -          }
      -        },
      -        "required": [
      -          "kind",
      -          "path",
      -          "status",
      -          "message"
      -        ],
      -        "type": "object"
      -      },
      -      "freshness": {
      -        "type": "null"
      -      },
      -      "measured_at": {
      -        "type": "null"
      -      },
      -      "method": {
      -        "type": "null"
      -      },
      -      "notes": {
      -        "description": "Caveats, one sentence each.",
      -        "items": {
      -          "type": "string"
      -        },
      -        "type": "array"
      -      },
      -      "state": {
      -        "description": "failed: the lookup did not complete. invalid_input: the input was refused, so nothing was looked up. Neither is a finding.",
      -        "enum": [
      -          "failed",
      -          "invalid_input"
      -        ],
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "state",
      -      "measured_at",
      -      "method",
      -      "coverage",
      -      "freshness",
      -      "notes",
      -      "error"
      -    ],
      -    "type": "object"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "coverage": {
      +        "anyOf": [
      +          {
      +            "additionalProperties": false,
      +            "properties": {
      +              "at_cap": {
      +                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      +                "type": [
      +                  "boolean",
      +                  "null"
      +                ]
      +              },
      +              "cap": {
      +                "description": "The most the API returns for one CVE, newest first.",
      +                "type": "number"
      +              },
      +              "cve_year": {
      +                "description": "The year in the CVE ID.",
      +                "type": "number"
      +              },
      +              "returned": {
      +                "description": "The advisories in this answer.",
      +                "type": [
      +                  "number",
      +                  "null"
      +                ]
      +              },
      +              "vendor_windows": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "additionalProperties": false,
      +                      "description": "A vendor's window in what EchelonGraph holds: vendor, advisories (how many EchelonGraph holds from that vendor), earliest_vendor_published_at and latest_vendor_published_at (the earliest and latest vendor_published_at among them, null when none is held), held_since (the start of the window EchelonGraph has read that vendor's advisories from, before which an advisory may not be held; null when none is held or the API does not say; for a vendor with no history read it is when its feed was first read from, and can be years after earliest_vendor_published_at, since an older advisory is held when the vendor revised it later, not the ones published beside it) and history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried).",
      +                      "properties": {
      +                        "advisories": {
      +                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      +                          "type": [
      +                            "number",
      +                            "null"
      +                          ]
      +                        },
      +                        "earliest_vendor_published_at": {
      +                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "held_since": {
      +                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "history_backfill": {
      +                          "anyOf": [
      +                            {
      +                              "anyOf": [
      +                                {
      +                                  "enum": [
      +                                    "complete",
      +                                    "in_progress",
      +                                    "not_started",
      +                                    "not_supported"
      +                                  ],
      +                                  "type": "string"
      +                                },
      +                                {
      +                                  "type": "string"
      +                                }
      +                              ]
      +                            },
      +                            {
      +                              "type": "null"
      +                            }
      +                          ],
      +                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      +                        },
      +                        "latest_vendor_published_at": {
      +                          "description": "The latest vendor_published_at among them; null when none is held.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "vendor": {
      +                          "description": "The vendor slug.",
      +                          "type": "string"
      +                        },
      +                        "vendor_display_name": {
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        }
      +                      },
      +                      "required": [
      +                        "vendor",
      +                        "vendor_display_name",
      +                        "advisories",
      +                        "earliest_vendor_published_at",
      +                        "latest_vendor_published_at",
      +                        "held_since",
      +                        "history_backfill"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      +              },
      +              "vendors_not_fully_held": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "type": "string"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      +              }
      +            },
      +            "required": [
      +              "returned",
      +              "cap",
      +              "at_cap",
      +              "cve_year",
      +              "vendor_windows",
      +              "vendors_not_fully_held"
      +            ],
      +            "type": "object"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "What the answer covers; null where the answer says nothing about it."
      +      },
      +      "data": {
      +        "additionalProperties": {},
      +        "properties": {
      +          "advisories": {
      +            "anyOf": [
      +              {
      +                "items": {
      +                  "additionalProperties": {},
      +                  "properties": {
      +                    "advisory_id": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "affected_products": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ]
      +                    },
      +                    "cve_ids": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ]
      +                    },
      +                    "cvss_v3_score": {
      +                      "type": [
      +                        "number",
      +                        "null"
      +                      ]
      +                    },
      +                    "our_first_seen_at": {
      +                      "description": "When EchelonGraph first recorded the advisory; not the vendor's date.",
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "rejected_cve_ids": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ],
      +                      "description": "The CVE IDs this advisory names whose CVE record was rejected (withdrawn) by its numbering authority: each is a rejected record, not an active vulnerability, whatever the advisory's text says. The vendor's withdrawn is separate and unchanged by it. [] when none is; null when that could not be checked."
      +                    },
      +                    "remediation_kinds": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "anyOf": [
      +                              {
      +                                "enum": [
      +                                  "vendor_fix",
      +                                  "workaround",
      +                                  "mitigation",
      +                                  "no_fix_planned",
      +                                  "none_available",
      +                                  "other"
      +                                ],
      +                                "type": "string"
      +                              },
      +                              {
      +                                "type": "string"
      +                              }
      +                            ]
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ],
      +                      "description": "The kinds of remediation the advisory lists (for the CVE asked about, on a by-cve row), each the vendor's own category, never read from the text: vendor_fix, workaround, mitigation, no_fix_planned, none_available or other. [] with remediation_state not_parsed is not a finding that it lists none."
      +                    },
      +                    "remediation_state": {
      +                      "anyOf": [
      +                        {
      +                          "anyOf": [
      +                            {
      +                              "enum": [
      +                                "parsed",
      +                                "none_in_source",
      +                                "not_parsed",
      +                                "withdrawn"
      +                              ],
      +                              "type": "string"
      +                            },
      +                            {
      +                              "type": "string"
      +                            }
      +                          ]
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ],
      +                      "description": "parsed; none_in_source (EchelonGraph read the vendor's remediation, and it lists none for this CVE, which is not a finding that no fix exists); not_parsed (EchelonGraph does not read this vendor's remediation, or has not yet read this advisory: not a finding of none); withdrawn (the vendor rescinded the advisory)."
      +                    },
      +                    "severity": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "summary": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "title": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_advisory_id": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_display_name": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_published_at": {
      +                      "description": "The date the vendor gives for the advisory.",
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "withdrawn": {
      +                      "description": "true: the vendor withdrew (rescinded) this advisory, so it is a withdrawn advisory, not a current one.",
      +                      "type": [
      +                        "boolean",
      +                        "null"
      +                      ]
      +                    }
      +                  },
      +                  "type": "object"
      +                },
      +                "type": "array"
      +              },
      +              {
      +                "type": "null"
      +              }
      +            ]
      +          },
      +          "cve_id": {
      +            "type": [
      +              "string",
      +              "null"
      +            ]
      +          },
      +          "cve_rejected": {
      +            "description": "true: the CVE record of cve_id was rejected (withdrawn) by its numbering authority, so these advisories name a rejected record, not an active vulnerability; null when that could not be checked.",
      +            "type": [
      +              "boolean",
      +              "null"
      +            ]
      +          },
      +          "total": {
      +            "type": [
      +              "number",
      +              "null"
      +            ]
      +          }
      +        },
      +        "type": "object"
      +      },
      +      "freshness": {
      +        "description": "The producing radar's last completed check (last_run_at), where the API serves one.",
      +        "type": "null"
      +      },
      +      "measured_at": {
      +        "anyOf": [
      +          {
      +            "description": "An RFC 3339 instant.",
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "When the underlying observation was made, as the API states it; null when the answer does not say or holds no observation."
      +      },
      +      "method": {
      +        "description": "How the numbers were produced.",
      +        "type": "string"
      +      },
      +      "notes": {
      +        "description": "Caveats, one sentence each.",
      +        "items": {
      +          "type": "string"
      +        },
      +        "type": "array"
      +      },
      +      "state": {
      +        "description": "measured: a measurement of what was asked; an exposure count is measured only with measured_at and method. not_assessed: the answer holds no dated measurement of what was asked, so no count in it is presented as one; it can still relay a count, as what the source holds on record, undated, and its notes (and exposure_state, where the result carries it) say what each count is.",
      +        "enum": [
      +          "measured",
      +          "not_assessed"
      +        ],
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "state",
      +      "measured_at",
      +      "method",
      +      "coverage",
      +      "freshness",
      +      "notes",
      +      "data"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "coverage": {
      +        "anyOf": [
      +          {
      +            "additionalProperties": false,
      +            "properties": {
      +              "at_cap": {
      +                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      +                "type": [
      +                  "boolean",
      +                  "null"
      +                ]
      +              },
      +              "cap": {
      +                "description": "The most the API returns for one CVE, newest first.",
      +                "type": "number"
      +              },
      +              "cve_year": {
      +                "description": "The year in the CVE ID.",
      +                "type": "number"
      +              },
      +              "returned": {
      +                "description": "The advisories in this answer.",
      +                "type": [
      +                  "number",
      +                  "null"
      +                ]
      +              },
      +              "vendor_windows": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "additionalProperties": false,
      +                      "description": "A vendor's window in what EchelonGraph holds: vendor, advisories (how many EchelonGraph holds from that vendor), earliest_vendor_published_at and latest_vendor_published_at (the earliest and latest vendor_published_at among them, null when none is held), held_since (the start of the window EchelonGraph has read that vendor's advisories from, before which an advisory may not be held; null when none is held or the API does not say; for a vendor with no history read it is when its feed was first read from, and can be years after earliest_vendor_published_at, since an older advisory is held when the vendor revised it later, not the ones published beside it) and history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried).",
      +                      "properties": {
      +                        "advisories": {
      +                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      +                          "type": [
      +                            "number",
      +                            "null"
      +                          ]
      +                        },
      +                        "earliest_vendor_published_at": {
      +                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "held_since": {
      +                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "history_backfill": {
      +                          "anyOf": [
      +                            {
      +                              "anyOf": [
      +                                {
      +                                  "enum": [
      +                                    "complete",
      +                                    "in_progress",
      +                                    "not_started",
      +                                    "not_supported"
      +                                  ],
      +                                  "type": "string"
      +                                },
      +                                {
      +                                  "type": "string"
      +                                }
      +                              ]
      +                            },
      +                            {
      +                              "type": "null"
      +                            }
      +                          ],
      +                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      +                        },
      +                        "latest_vendor_published_at": {
      +                          "description": "The latest vendor_published_at among them; null when none is held.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "vendor": {
      +                          "description": "The vendor slug.",
      +                          "type": "string"
      +                        },
      +                        "vendor_display_name": {
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        }
      +                      },
      +                      "required": [
      +                        "vendor",
      +                        "vendor_display_name",
      +                        "advisories",
      +                        "earliest_vendor_published_at",
      +                        "latest_vendor_published_at",
      +                        "held_since",
      +                        "history_backfill"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      +              },
      +              "vendors_not_fully_held": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "type": "string"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      +              }
      +            },
      +            "required": [
      +              "returned",
      +              "cap",
      +              "at_cap",
      +              "cve_year",
      +              "vendor_windows",
      +              "vendors_not_fully_held"
      +            ],
      +            "type": "object"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "error": {
      +        "additionalProperties": false,
      +        "properties": {
      +          "kind": {
      +            "description": "What failed: the request (network, timeout), the answer (http, not_json, not_object, unexpected_shape), the input, or this server.",
      +            "enum": [
      +              "network",
      +              "timeout",
      +              "http",
      +              "not_json",
      +              "not_object",
      +              "invalid_input",
      +              "internal",
      +              "unexpected_shape",
      +              "radars"
      +            ],
      +            "type": "string"
      +          },
      +          "message": {
      +            "description": "The cause: the API's own message, or what went wrong.",
      +            "type": "string"
      +          },
      +          "path": {
      +            "description": "The API path requested, when a request was made.",
      +            "type": [
      +              "string",
      +              "null"
      +            ]
      +          },
      +          "status": {
      +            "anyOf": [
      +              {
      +                "maximum": 9007199254740991,
      +                "minimum": -9007199254740991,
      +                "type": "integer"
      +              },
      +              {
      +                "type": "null"
      +              }
      +            ],
      +            "description": "The HTTP status, when the API answered one."
      +          }
      +        },
      +        "required": [
      +          "kind",
      +          "path",
      +          "status",
      +          "message"
      +        ],
      +        "type": "object"
      +      },
      +      "freshness": {
      +        "type": "null"
      +      },
      +      "measured_at": {
      +        "type": "null"
      +      },
      +      "method": {
      +        "type": "null"
      +      },
      +      "notes": {
      +        "description": "Caveats, one sentence each.",
      +        "items": {
      +          "type": "string"
      +        },
      +        "type": "array"
      +      },
      +      "state": {
      +        "description": "failed: the lookup did not complete. invalid_input: the input was refused, so nothing was looked up. Neither is a finding.",
      +        "enum": [
      +          "failed",
      +          "invalid_input"
      +        ],
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "state",
      +      "measured_at",
      +      "method",
      +      "coverage",
      +      "freshness",
      +      "notes",
      +      "error"
      +    ],
      +    "type": "object"
      +  }
      +]
  3. Changed1 schema field changedv2.6.6
    • changedOutput schema / oneOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "coverage": {
      -        "anyOf": [
      -          {
      -            "additionalProperties": false,
      -            "properties": {
      -              "at_cap": {
      -                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      -                "type": [
      -                  "boolean",
      -                  "null"
      -                ]
      -              },
      -              "cap": {
      -                "description": "The most the API returns for one CVE, newest first.",
      -                "type": "number"
      -              },
      -              "cve_year": {
      -                "description": "The year in the CVE ID.",
      -                "type": "number"
      -              },
      -              "returned": {
      -                "description": "The advisories in this answer.",
      -                "type": [
      -                  "number",
      -                  "null"
      -                ]
      -              },
      -              "vendor_windows": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "advisories": {
      -                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      -                          "type": [
      -                            "number",
      -                            "null"
      -                          ]
      -                        },
      -                        "earliest_vendor_published_at": {
      -                          "description": "The earliest vendor_published_at among them; null when none is held. An advisory this vendor published before it is not held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "history_backfill": {
      -                          "anyOf": [
      -                            {
      -                              "anyOf": [
      -                                {
      -                                  "enum": [
      -                                    "complete",
      -                                    "in_progress",
      -                                    "not_started",
      -                                    "not_supported"
      -                                  ],
      -                                  "type": "string"
      -                                },
      -                                {
      -                                  "type": "string"
      -                                }
      -                              ]
      -                            },
      -                            {
      -                              "type": "null"
      -                            }
      -                          ],
      -                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      -                        },
      -                        "latest_vendor_published_at": {
      -                          "description": "The latest vendor_published_at among them; null when none is held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "vendor": {
      -                          "description": "The vendor slug.",
      -                          "type": "string"
      -                        },
      -                        "vendor_display_name": {
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        }
      -                      },
      -                      "required": [
      -                        "vendor",
      -                        "vendor_display_name",
      -                        "advisories",
      -                        "earliest_vendor_published_at",
      -                        "latest_vendor_published_at",
      -                        "history_backfill"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its earliest_vendor_published_at is not held, so no advisory from a vendor is not a finding that it published none."
      -              },
      -              "vendors_not_fully_held": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "type": "string"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, the earliest held dated after 1 January of cve_year, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      -              }
      -            },
      -            "required": [
      -              "returned",
      -              "cap",
      -              "at_cap",
      -              "cve_year",
      -              "vendor_windows",
      -              "vendors_not_fully_held"
      -            ],
      -            "type": "object"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "What the answer covers; null where the answer says nothing about it."
      -      },
      -      "data": {
      -        "additionalProperties": {},
      -        "properties": {
      -          "advisories": {
      -            "anyOf": [
      -              {
      -                "items": {
      -                  "additionalProperties": {},
      -                  "properties": {
      -                    "advisory_id": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "affected_products": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "type": "string"
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ]
      -                    },
      -                    "cve_ids": {
      -                      "anyOf": [
      -                        {
      -                          "items": {
      -                            "type": "string"
      -                          },
      -                          "type": "array"
      -                        },
      -                        {
      -                          "type": "null"
      -                        }
      -                      ]
      -                    },
      -                    "cvss_v3_score": {
      -                      "type": [
      -                        "number",
      -                        "null"
      -                      ]
      -                    },
      -                    "our_first_seen_at": {
      -                      "description": "When EchelonGraph first recorded the advisory; not the vendor's date.",
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "severity": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "summary": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "title": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_advisory_id": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_display_name": {
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "vendor_published_at": {
      -                      "description": "The date the vendor gives for the advisory.",
      -                      "type": [
      -                        "string",
      -                        "null"
      -                      ]
      -                    },
      -                    "withdrawn": {
      -                      "description": "true: the vendor withdrew (rescinded) this advisory; report it as withdrawn.",
      -                      "type": [
      -                        "boolean",
      -                        "null"
      -                      ]
      -                    }
      -                  },
      -                  "type": "object"
      -                },
      -                "type": "array"
      -              },
      -              {
      -                "type": "null"
      -              }
      -            ]
      -          },
      -          "cve_id": {
      -            "type": [
      -              "string",
      -              "null"
      -            ]
      -          },
      -          "total": {
      -            "type": [
      -              "number",
      -              "null"
      -            ]
      -          }
      -        },
      -        "type": "object"
      -      },
      -      "freshness": {
      -        "description": "The producing radar's last completed check (last_run_at), where the API serves one.",
      -        "type": "null"
      -      },
      -      "measured_at": {
      -        "anyOf": [
      -          {
      -            "description": "An RFC 3339 instant.",
      -            "type": "string"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "When the underlying observation was made, as the API states it; null when the answer does not say or holds no observation."
      -      },
      -      "method": {
      -        "description": "How the numbers were produced.",
      -        "type": "string"
      -      },
      -      "notes": {
      -        "description": "Caveats, one sentence each.",
      -        "items": {
      -          "type": "string"
      -        },
      -        "type": "array"
      -      },
      -      "state": {
      -        "description": "measured: a measurement of what was asked; an exposure count is measured only with measured_at and method. not_assessed: the answer holds no dated measurement of what was asked, so no count in it is presented as one; it can still relay a count, as what the source holds on record, undated, and its notes (and exposure_state, where the result carries it) say what each count is.",
      -        "enum": [
      -          "measured",
      -          "not_assessed"
      -        ],
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "state",
      -      "measured_at",
      -      "method",
      -      "coverage",
      -      "freshness",
      -      "notes",
      -      "data"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "coverage": {
      -        "anyOf": [
      -          {
      -            "additionalProperties": false,
      -            "properties": {
      -              "at_cap": {
      -                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      -                "type": [
      -                  "boolean",
      -                  "null"
      -                ]
      -              },
      -              "cap": {
      -                "description": "The most the API returns for one CVE, newest first.",
      -                "type": "number"
      -              },
      -              "cve_year": {
      -                "description": "The year in the CVE ID.",
      -                "type": "number"
      -              },
      -              "returned": {
      -                "description": "The advisories in this answer.",
      -                "type": [
      -                  "number",
      -                  "null"
      -                ]
      -              },
      -              "vendor_windows": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "additionalProperties": false,
      -                      "properties": {
      -                        "advisories": {
      -                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      -                          "type": [
      -                            "number",
      -                            "null"
      -                          ]
      -                        },
      -                        "earliest_vendor_published_at": {
      -                          "description": "The earliest vendor_published_at among them; null when none is held. An advisory this vendor published before it is not held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "history_backfill": {
      -                          "anyOf": [
      -                            {
      -                              "anyOf": [
      -                                {
      -                                  "enum": [
      -                                    "complete",
      -                                    "in_progress",
      -                                    "not_started",
      -                                    "not_supported"
      -                                  ],
      -                                  "type": "string"
      -                                },
      -                                {
      -                                  "type": "string"
      -                                }
      -                              ]
      -                            },
      -                            {
      -                              "type": "null"
      -                            }
      -                          ],
      -                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      -                        },
      -                        "latest_vendor_published_at": {
      -                          "description": "The latest vendor_published_at among them; null when none is held.",
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        },
      -                        "vendor": {
      -                          "description": "The vendor slug.",
      -                          "type": "string"
      -                        },
      -                        "vendor_display_name": {
      -                          "type": [
      -                            "string",
      -                            "null"
      -                          ]
      -                        }
      -                      },
      -                      "required": [
      -                        "vendor",
      -                        "vendor_display_name",
      -                        "advisories",
      -                        "earliest_vendor_published_at",
      -                        "latest_vendor_published_at",
      -                        "history_backfill"
      -                      ],
      -                      "type": "object"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its earliest_vendor_published_at is not held, so no advisory from a vendor is not a finding that it published none."
      -              },
      -              "vendors_not_fully_held": {
      -                "anyOf": [
      -                  {
      -                    "items": {
      -                      "type": "string"
      -                    },
      -                    "type": "array"
      -                  },
      -                  {
      -                    "type": "null"
      -                  }
      -                ],
      -                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, the earliest held dated after 1 January of cve_year, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      -              }
      -            },
      -            "required": [
      -              "returned",
      -              "cap",
      -              "at_cap",
      -              "cve_year",
      -              "vendor_windows",
      -              "vendors_not_fully_held"
      -            ],
      -            "type": "object"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "error": {
      -        "additionalProperties": false,
      -        "properties": {
      -          "kind": {
      -            "description": "What failed: the request (network, timeout), the answer (http, not_json, not_object, unexpected_shape), the input, or this server.",
      -            "enum": [
      -              "network",
      -              "timeout",
      -              "http",
      -              "not_json",
      -              "not_object",
      -              "invalid_input",
      -              "internal",
      -              "unexpected_shape",
      -              "radars"
      -            ],
      -            "type": "string"
      -          },
      -          "message": {
      -            "description": "The cause: the API's own message, or what went wrong.",
      -            "type": "string"
      -          },
      -          "path": {
      -            "description": "The API path requested, when a request was made.",
      -            "type": [
      -              "string",
      -              "null"
      -            ]
      -          },
      -          "status": {
      -            "anyOf": [
      -              {
      -                "maximum": 9007199254740991,
      -                "minimum": -9007199254740991,
      -                "type": "integer"
      -              },
      -              {
      -                "type": "null"
      -              }
      -            ],
      -            "description": "The HTTP status, when the API answered one."
      -          }
      -        },
      -        "required": [
      -          "kind",
      -          "path",
      -          "status",
      -          "message"
      -        ],
      -        "type": "object"
      -      },
      -      "freshness": {
      -        "type": "null"
      -      },
      -      "measured_at": {
      -        "type": "null"
      -      },
      -      "method": {
      -        "type": "null"
      -      },
      -      "notes": {
      -        "description": "Caveats, one sentence each.",
      -        "items": {
      -          "type": "string"
      -        },
      -        "type": "array"
      -      },
      -      "state": {
      -        "description": "failed: the lookup did not complete. invalid_input: the input was refused, so nothing was looked up. Neither is a finding.",
      -        "enum": [
      -          "failed",
      -          "invalid_input"
      -        ],
      -        "type": "string"
      -      }
      -    },
      -    "required": [
      -      "state",
      -      "measured_at",
      -      "method",
      -      "coverage",
      -      "freshness",
      -      "notes",
      -      "error"
      -    ],
      -    "type": "object"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "coverage": {
      +        "anyOf": [
      +          {
      +            "additionalProperties": false,
      +            "properties": {
      +              "at_cap": {
      +                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      +                "type": [
      +                  "boolean",
      +                  "null"
      +                ]
      +              },
      +              "cap": {
      +                "description": "The most the API returns for one CVE, newest first.",
      +                "type": "number"
      +              },
      +              "cve_year": {
      +                "description": "The year in the CVE ID.",
      +                "type": "number"
      +              },
      +              "returned": {
      +                "description": "The advisories in this answer.",
      +                "type": [
      +                  "number",
      +                  "null"
      +                ]
      +              },
      +              "vendor_windows": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "additionalProperties": false,
      +                      "properties": {
      +                        "advisories": {
      +                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      +                          "type": [
      +                            "number",
      +                            "null"
      +                          ]
      +                        },
      +                        "earliest_vendor_published_at": {
      +                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "held_since": {
      +                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "history_backfill": {
      +                          "anyOf": [
      +                            {
      +                              "anyOf": [
      +                                {
      +                                  "enum": [
      +                                    "complete",
      +                                    "in_progress",
      +                                    "not_started",
      +                                    "not_supported"
      +                                  ],
      +                                  "type": "string"
      +                                },
      +                                {
      +                                  "type": "string"
      +                                }
      +                              ]
      +                            },
      +                            {
      +                              "type": "null"
      +                            }
      +                          ],
      +                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      +                        },
      +                        "latest_vendor_published_at": {
      +                          "description": "The latest vendor_published_at among them; null when none is held.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "vendor": {
      +                          "description": "The vendor slug.",
      +                          "type": "string"
      +                        },
      +                        "vendor_display_name": {
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        }
      +                      },
      +                      "required": [
      +                        "vendor",
      +                        "vendor_display_name",
      +                        "advisories",
      +                        "earliest_vendor_published_at",
      +                        "latest_vendor_published_at",
      +                        "held_since",
      +                        "history_backfill"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      +              },
      +              "vendors_not_fully_held": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "type": "string"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      +              }
      +            },
      +            "required": [
      +              "returned",
      +              "cap",
      +              "at_cap",
      +              "cve_year",
      +              "vendor_windows",
      +              "vendors_not_fully_held"
      +            ],
      +            "type": "object"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "What the answer covers; null where the answer says nothing about it."
      +      },
      +      "data": {
      +        "additionalProperties": {},
      +        "properties": {
      +          "advisories": {
      +            "anyOf": [
      +              {
      +                "items": {
      +                  "additionalProperties": {},
      +                  "properties": {
      +                    "advisory_id": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "affected_products": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ]
      +                    },
      +                    "cve_ids": {
      +                      "anyOf": [
      +                        {
      +                          "items": {
      +                            "type": "string"
      +                          },
      +                          "type": "array"
      +                        },
      +                        {
      +                          "type": "null"
      +                        }
      +                      ]
      +                    },
      +                    "cvss_v3_score": {
      +                      "type": [
      +                        "number",
      +                        "null"
      +                      ]
      +                    },
      +                    "our_first_seen_at": {
      +                      "description": "When EchelonGraph first recorded the advisory; not the vendor's date.",
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "severity": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "summary": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "title": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_advisory_id": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_display_name": {
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "vendor_published_at": {
      +                      "description": "The date the vendor gives for the advisory.",
      +                      "type": [
      +                        "string",
      +                        "null"
      +                      ]
      +                    },
      +                    "withdrawn": {
      +                      "description": "true: the vendor withdrew (rescinded) this advisory; report it as withdrawn.",
      +                      "type": [
      +                        "boolean",
      +                        "null"
      +                      ]
      +                    }
      +                  },
      +                  "type": "object"
      +                },
      +                "type": "array"
      +              },
      +              {
      +                "type": "null"
      +              }
      +            ]
      +          },
      +          "cve_id": {
      +            "type": [
      +              "string",
      +              "null"
      +            ]
      +          },
      +          "total": {
      +            "type": [
      +              "number",
      +              "null"
      +            ]
      +          }
      +        },
      +        "type": "object"
      +      },
      +      "freshness": {
      +        "description": "The producing radar's last completed check (last_run_at), where the API serves one.",
      +        "type": "null"
      +      },
      +      "measured_at": {
      +        "anyOf": [
      +          {
      +            "description": "An RFC 3339 instant.",
      +            "type": "string"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "When the underlying observation was made, as the API states it; null when the answer does not say or holds no observation."
      +      },
      +      "method": {
      +        "description": "How the numbers were produced.",
      +        "type": "string"
      +      },
      +      "notes": {
      +        "description": "Caveats, one sentence each.",
      +        "items": {
      +          "type": "string"
      +        },
      +        "type": "array"
      +      },
      +      "state": {
      +        "description": "measured: a measurement of what was asked; an exposure count is measured only with measured_at and method. not_assessed: the answer holds no dated measurement of what was asked, so no count in it is presented as one; it can still relay a count, as what the source holds on record, undated, and its notes (and exposure_state, where the result carries it) say what each count is.",
      +        "enum": [
      +          "measured",
      +          "not_assessed"
      +        ],
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "state",
      +      "measured_at",
      +      "method",
      +      "coverage",
      +      "freshness",
      +      "notes",
      +      "data"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "coverage": {
      +        "anyOf": [
      +          {
      +            "additionalProperties": false,
      +            "properties": {
      +              "at_cap": {
      +                "description": "true: the answer is full, so the vendor feeds may hold more advisories for this CVE than it lists.",
      +                "type": [
      +                  "boolean",
      +                  "null"
      +                ]
      +              },
      +              "cap": {
      +                "description": "The most the API returns for one CVE, newest first.",
      +                "type": "number"
      +              },
      +              "cve_year": {
      +                "description": "The year in the CVE ID.",
      +                "type": "number"
      +              },
      +              "returned": {
      +                "description": "The advisories in this answer.",
      +                "type": [
      +                  "number",
      +                  "null"
      +                ]
      +              },
      +              "vendor_windows": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "additionalProperties": false,
      +                      "properties": {
      +                        "advisories": {
      +                          "description": "How many advisories EchelonGraph holds from this vendor, withdrawn ones not counted.",
      +                          "type": [
      +                            "number",
      +                            "null"
      +                          ]
      +                        },
      +                        "earliest_vendor_published_at": {
      +                          "description": "The earliest vendor_published_at among them; null when none is held. Not where the window begins: see held_since.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "held_since": {
      +                          "description": "The start of the window EchelonGraph has read this vendor's advisories from; null when none is held or the API does not say. An advisory this vendor published before it may not be held, even when earliest_vendor_published_at is older.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "history_backfill": {
      +                          "anyOf": [
      +                            {
      +                              "anyOf": [
      +                                {
      +                                  "enum": [
      +                                    "complete",
      +                                    "in_progress",
      +                                    "not_started",
      +                                    "not_supported"
      +                                  ],
      +                                  "type": "string"
      +                                },
      +                                {
      +                                  "type": "string"
      +                                }
      +                              ]
      +                            },
      +                            {
      +                              "type": "null"
      +                            }
      +                          ],
      +                          "description": "history_backfill: complete (the vendor's published history has been read back as far as its source goes), in_progress or not_started (it is still being read, so the vendor's older advisories are not all held yet), or not_supported (EchelonGraph has no history read for that vendor, so what it holds is what the vendor's feed has carried)."
      +                        },
      +                        "latest_vendor_published_at": {
      +                          "description": "The latest vendor_published_at among them; null when none is held.",
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        },
      +                        "vendor": {
      +                          "description": "The vendor slug.",
      +                          "type": "string"
      +                        },
      +                        "vendor_display_name": {
      +                          "type": [
      +                            "string",
      +                            "null"
      +                          ]
      +                        }
      +                      },
      +                      "required": [
      +                        "vendor",
      +                        "vendor_display_name",
      +                        "advisories",
      +                        "earliest_vendor_published_at",
      +                        "latest_vendor_published_at",
      +                        "held_since",
      +                        "history_backfill"
      +                      ],
      +                      "type": "object"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "Each vendor's window in what EchelonGraph holds; null when the windows could not be read. An advisory a vendor published before its held_since may not be held, even when its earliest_vendor_published_at is older, so no advisory from a vendor is not a finding that it published none."
      +              },
      +              "vendors_not_fully_held": {
      +                "anyOf": [
      +                  {
      +                    "items": {
      +                      "type": "string"
      +                    },
      +                    "type": "array"
      +                  },
      +                  {
      +                    "type": "null"
      +                  }
      +                ],
      +                "description": "The vendors with no advisory in this answer that may have published one EchelonGraph does not hold: none held, held_since after 1 January of cve_year or not known, or history_backfill in_progress or not_started. No advisory from them is not a finding that they published none. null when the windows could not be read."
      +              }
      +            },
      +            "required": [
      +              "returned",
      +              "cap",
      +              "at_cap",
      +              "cve_year",
      +              "vendor_windows",
      +              "vendors_not_fully_held"
      +            ],
      +            "type": "object"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "error": {
      +        "additionalProperties": false,
      +        "properties": {
      +          "kind": {
      +            "description": "What failed: the request (network, timeout), the answer (http, not_json, not_object, unexpected_shape), the input, or this server.",
      +            "enum": [
      +              "network",
      +              "timeout",
      +              "http",
      +              "not_json",
      +              "not_object",
      +              "invalid_input",
      +              "internal",
      +              "unexpected_shape",
      +              "radars"
      +            ],
      +            "type": "string"
      +          },
      +          "message": {
      +            "description": "The cause: the API's own message, or what went wrong.",
      +            "type": "string"
      +          },
      +          "path": {
      +            "description": "The API path requested, when a request was made.",
      +            "type": [
      +              "string",
      +              "null"
      +            ]
      +          },
      +          "status": {
      +            "anyOf": [
      +              {
      +                "maximum": 9007199254740991,
      +                "minimum": -9007199254740991,
      +                "type": "integer"
      +              },
      +              {
      +                "type": "null"
      +              }
      +            ],
      +            "description": "The HTTP status, when the API answered one."
      +          }
      +        },
      +        "required": [
      +          "kind",
      +          "path",
      +          "status",
      +          "message"
      +        ],
      +        "type": "object"
      +      },
      +      "freshness": {
      +        "type": "null"
      +      },
      +      "measured_at": {
      +        "type": "null"
      +      },
      +      "method": {
      +        "type": "null"
      +      },
      +      "notes": {
      +        "description": "Caveats, one sentence each.",
      +        "items": {
      +          "type": "string"
      +        },
      +        "type": "array"
      +      },
      +      "state": {
      +        "description": "failed: the lookup did not complete. invalid_input: the input was refused, so nothing was looked up. Neither is a finding.",
      +        "enum": [
      +          "failed",
      +          "invalid_input"
      +        ],
      +        "type": "string"
      +      }
      +    },
      +    "required": [
      +      "state",
      +      "measured_at",
      +      "method",
      +      "coverage",
      +      "freshness",
      +      "notes",
      +      "error"
      +    ],
      +    "type": "object"
      +  }
      +]
  4. Addedv2.6.3

TDQS

A4.3/5.0
Behavior5/5

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

Annotations only cover read-only/idempotent/open-world, and the description adds substantial behavior the annotations cannot carry: the 30,000-character DATA CUT/TEXT CUT behavior and what survives a cut, what an empty result does and does not mean, the meaning of withdrawn, rejected_cve_ids, remediation_state's 'not_parsed is not none', and per-vendor held_since/history_backfill windows. It also warns that pre-held_since advisories may be missing, preventing a false negative conclusion.

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

Conciseness3/5

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

The purpose is correctly front-loaded in the first clause, but the body is a single dense paragraph of run-on clauses stacking truncation, coverage, and window semantics. Most content is defensible given the tool's complexity, yet the structure makes it hard to scan and several clauses (e.g. repeated held_since explanations) restate the same idea.

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?

With an output schema present the description need not restate return fields, yet the extra behavioral content (truncation contract, empty-answer interpretation, vendor-window semantics) is exactly what the schema and annotations cannot convey. Nothing needed to call or correctly interpret the tool is 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 baseline is 3, but the description adds real meaning for 'full': it explains what the alternative cut does, that data_truncated/truncated appear, and the MAX_MCP_OUTPUT_TOKENS refusal case. That is more than the schema's own 'data is the answer whole' wording provides.

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?

States a specific verb+resource with scope: 'the vendor-published advisories that name one CVE, newest first, at most 20,' then enumerates the exact fields returned. An agent can tell it apart from search_vendor_advisories (multi-CVE search) and get_vendor_advisory (single advisory) from the description alone.

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?

Usage is implied by the scope statement and by the interpretation caveats ('an empty answer means none of the advisories EchelonGraph holds names the CVE'), which is valuable guidance. However, it never explicitly says when to pick this tool over cve_intel, get_vendor_advisory or search_vendor_advisories, nor states prerequisites beyond the CVE ID.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.