{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-equation-equation",
  "component": "equation",
  "generated_at": "2026-09-28T09:05:19.885Z",
  "tracking_since": "2026-09-14",
  "counts": {
    "critical": 0,
    "security": 13,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0e25f-6ecf-7b11-89a0-86f97e1307d9",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "encode_graph_url",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "encode_graph_url"
      },
      "occurred_on": "2026-09-27",
      "occurred_at": "2026-09-27 10:18:19.928647+00",
      "observed_since": "2026-09-26",
      "source": "scan",
      "summary": "Tool “encode_graph_url” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0e25f-6ecf-7b11-89a0-86f97e1307d9"
    },
    {
      "id": "chg_01a0d2ee-75dd-7060-9f33-43813029031f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "encode_graph_url",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "encode_graph_url"
      },
      "occurred_on": "2026-09-24",
      "occurred_at": "2026-09-24 10:20:37.205411+00",
      "observed_since": "2026-09-23",
      "source": "scan",
      "summary": "Tool “encode_graph_url” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0d2ee-75dd-7060-9f33-43813029031f"
    },
    {
      "id": "chg_01a0c378-c7c0-71b8-b116-5e201382674f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "show_graph",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "show_graph"
      },
      "occurred_on": "2026-09-21",
      "occurred_at": "2026-09-21 10:17:47.407435+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Tool “show_graph” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0c378-c7c0-71b8-b116-5e201382674f"
    },
    {
      "id": "chg_01a0be4f-d082-7828-a4ba-37690f021d53",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "decode_graph_url",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "decode_graph_url"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 10:14:55.133329+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “decode_graph_url” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0be4f-d082-7828-a4ba-37690f021d53"
    },
    {
      "id": "chg_01a0be4f-d089-7f0f-a66b-e4d5bc18ad1a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "encode_graph_url",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "encode_graph_url"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 10:14:55.133329+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “encode_graph_url” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0be4f-d089-7f0f-a66b-e4d5bc18ad1a"
    },
    {
      "id": "chg_01a0be4f-d08b-79b1-8cef-6b071195168e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "show_graph",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "show_graph"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 10:14:55.133329+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “show_graph” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0be4f-d08b-79b1-8cef-6b071195168e"
    },
    {
      "id": "chg_01a0be4f-d08b-7e56-86e9-b38a9142f1ed",
      "kind": "resource.uri_changed",
      "family": "",
      "subject_kind": "resource",
      "subject": "graph",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "ui://equation/graph-v1.html",
      "to_value": "ui://equation/graph-v2.html",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "to": "ui://equation/graph-v2.html",
        "from": "ui://equation/graph-v1.html",
        "resource": "graph"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 10:14:55.133329+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Resource “graph” now points somewhere else (ui://equation/graph-v1.html → ui://equation/graph-v2.html)",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0be4f-d08b-7e56-86e9-b38a9142f1ed"
    },
    {
      "id": "chg_01a0a490-aa3f-747a-9f0a-260af37ee6d3",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.churn",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "1",
        "added": "3",
        "breaks": "0",
        "removed": "2",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 10:15:39.224245+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Stability (unverified → fail)",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0a490-aa3f-747a-9f0a-260af37ee6d3"
    },
    {
      "id": "chg_01a0a490-aa3f-79f8-b350-1c0ade32118e",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_no_destructive",
      "from_value": "unverified",
      "to_value": "partial",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 10:15:39.224245+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Authorization (unverified → partial)",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0a490-aa3f-79f8-b350-1c0ade32118e"
    },
    {
      "id": "chg_01a0a490-aa41-7b7e-a7a2-d65c37003dc3",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_graph",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "create_graph"
      },
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 10:15:39.224245+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Tool “create_graph” was removed",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0a490-aa41-7b7e-a7a2-d65c37003dc3"
    },
    {
      "id": "chg_01a0a490-aa42-707b-ae9b-0683e1e0e572",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "read_graph",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "read_graph"
      },
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 10:15:39.224245+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Tool “read_graph” was removed",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0a490-aa42-707b-ae9b-0683e1e0e572"
    },
    {
      "id": "chg_01a0a490-aa45-7cf1-b29a-24afc08c361e",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 10:15:39.224245+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0a490-aa45-7cf1-b29a-24afc08c361e"
    },
    {
      "id": "chg_01a0a490-aa46-71fe-80f8-b4d05f98d632",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "1.0.0",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "1.0.0",
      "to_value": "1.0.0",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "2",
        "version": "1.0.0",
        "breaking": "0"
      },
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 10:15:39.224245+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 1.0.0)",
      "link": "https://verifymcp.io/servers/io-equation-equation/equation#chg-chg_01a0a490-aa46-71fe-80f8-b4d05f98d632"
    }
  ],
  "days": [
    {
      "date": "2026-09-27",
      "total": 71,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-25",
      "total": 71,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-24",
      "total": 71,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-21",
      "total": 71,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-20",
      "total": 71,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    },
    {
      "date": "2026-09-15",
      "total": 72,
      "delta": 5,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 14
    },
    {
      "date": "2026-09-14",
      "total": 67,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 0
    }
  ]
}