{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "io-sylai-guardian",
  "component": "guardian",
  "generated_at": "2026-11-05T12:55:10.383Z",
  "tracking_since": "2026-10-22",
  "counts": {
    "critical": 0,
    "security": 5,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a18451-37d8-7b77-b530-9cab3fd554ea",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "guardian_review",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "guardian_review"
      },
      "occurred_on": "2026-10-28",
      "occurred_at": "2026-10-28 21:01:17.622648+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "Tool “guardian_review” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a18451-37d8-7b77-b530-9cab3fd554ea"
    },
    {
      "id": "chg_01a18451-37dd-787a-8268-0fc4325aea66",
      "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": "2026-10-28",
      "occurred_at": "2026-10-28 21:01:17.622648+00",
      "observed_since": "2026-10-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a18451-37dd-787a-8268-0fc4325aea66"
    },
    {
      "id": "chg_01a16611-955c-765c-bcdf-eeca1ee646ee",
      "kind": "check.verdict",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.hsts_present",
      "to_code": "headers.hsts_absent",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 00:03:10.787781+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "HSTS header (pass → fail)",
      "link": "https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-955c-765c-bcdf-eeca1ee646ee"
    },
    {
      "id": "chg_01a16611-9560-709c-8201-73fd95090452",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "guardian_review",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "guardian_review"
      },
      "occurred_on": "2026-10-23",
      "occurred_at": "2026-10-23 00:03:10.787781+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "Tool “guardian_review” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-9560-709c-8201-73fd95090452"
    },
    {
      "id": "chg_01a16611-9562-7bf6-b882-8319af74480e",
      "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": "2026-10-23",
      "occurred_at": "2026-10-23 00:03:10.787781+00",
      "observed_since": "2026-10-22",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/io-sylai-guardian/guardian#chg-chg_01a16611-9562-7bf6-b882-8319af74480e"
    }
  ],
  "days": [
    {
      "date": "2026-11-05",
      "total": 65,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 43,
        "to": 47,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 13,
          "to_days": 14
        },
        "partial": false,
        "compared_to": "2026-11-04",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-11-02",
      "total": 64,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 33,
        "to": 37,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 10,
          "to_days": 11
        },
        "partial": false,
        "compared_to": "2026-11-01",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 33 to 37. That category is still filling its 30-day observation window: 10 days of observed history at the previous scan, 11 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-31",
      "total": 63,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 27,
        "to": 30,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 8,
          "to_days": 9
        },
        "partial": false,
        "compared_to": "2026-10-30",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 27 to 30. That category is still filling its 30-day observation window: 8 days of observed history at the previous scan, 9 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-29",
      "total": 62,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 20,
        "to": 23,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 6,
          "to_days": 7
        },
        "partial": false,
        "compared_to": "2026-10-28",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 20 to 23. That category is still filling its 30-day observation window: 6 days of observed history at the previous scan, 7 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-28",
      "total": 61,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-10-27",
      "total": 61,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 13,
        "to": 17,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 4,
          "to_days": 5
        },
        "partial": false,
        "compared_to": "2026-10-26",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-24",
      "total": 60,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 3,
        "to": 7,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 1,
          "to_days": 2
        },
        "partial": false,
        "compared_to": "2026-10-23",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-23",
      "total": 59,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    }
  ]
}