{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "tasuyoapp-ctrl-email-preflight",
  "component": "email-preflight-mcp",
  "generated_at": "2026-10-19T06:56:11.784Z",
  "tracking_since": "2026-10-01",
  "counts": {
    "critical": 0,
    "security": 9,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a14e30-07d4-712b-a959-1bb3d71e4886",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.53",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 08:45:32.99645+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "Stability (0.53 → unverified)",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a14e30-07d4-712b-a959-1bb3d71e4886"
    },
    {
      "id": "chg_01a14e30-081d-7d3f-9c60-56154b3fc47f",
      "kind": "check.verdict",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.http_error",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "status": "503",
        "transport": "streamable-http"
      },
      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 08:45:32.99645+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "Transport (pass → fail)",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a14e30-081d-7d3f-9c60-56154b3fc47f"
    },
    {
      "id": "chg_01a14e30-081e-79b2-87ae-28588e3577a0",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 08:45:32.99645+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a14e30-081e-79b2-87ae-28588e3577a0"
    },
    {
      "id": "chg_01a14e30-081e-7f04-bda7-457b864f96d0",
      "kind": "check.unverifiable",
      "family": "https",
      "subject_kind": "check",
      "subject": "https",
      "subject_child": "",
      "from_code": "https.enforced",
      "to_code": "https.inconclusive",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "reason": "plaintext_status",
        "status": "429"
      },
      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 08:45:32.99645+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "HTTPS (pass → unverified)",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a14e30-081e-7f04-bda7-457b864f96d0"
    },
    {
      "id": "chg_01a14e30-081f-7520-947f-6f34688eb713",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.unreachable",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 08:45:32.99645+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "Authorization (Authorisation not yet verified: we couldn't confirm whether this endpoint requires it.)",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a14e30-081f-7520-947f-6f34688eb713"
    },
    {
      "id": "chg_01a14e30-0821-71cc-8f89-752e5bf261c9",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-10-18",
      "occurred_at": "2026-10-18 08:45:32.99645+00",
      "observed_since": "2026-10-17",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a14e30-0821-71cc-8f89-752e5bf261c9"
    },
    {
      "id": "chg_01a148fe-44d0-7246-acd3-313ffd2828f4",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "3"
      },
      "occurred_on": "2026-10-17",
      "occurred_at": "2026-10-17 08:33:05.721194+00",
      "observed_since": "2026-10-16",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 3 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a148fe-44d0-7246-acd3-313ffd2828f4"
    },
    {
      "id": "chg_01a14337-f660-7b7a-9cfe-1b1b5a50b3f8",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "email_preflight",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "email_preflight"
      },
      "occurred_on": "2026-10-16",
      "occurred_at": "2026-10-16 05:38:22.95569+00",
      "observed_since": "2026-10-15",
      "source": "scan",
      "summary": "Tool “email_preflight” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a14337-f660-7b7a-9cfe-1b1b5a50b3f8"
    },
    {
      "id": "chg_01a0fba0-d9f2-70f5-9cb8-71049613755e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "email_preflight",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "email_preflight"
      },
      "occurred_on": "2026-10-02",
      "occurred_at": "2026-10-02 08:00:17.574253+00",
      "observed_since": "2026-10-01",
      "source": "scan",
      "summary": "Tool “email_preflight” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/tasuyoapp-ctrl-email-preflight/email-preflight-mcp#chg-chg_01a0fba0-d9f2-70f5-9cb8-71049613755e"
    }
  ],
  "days": [
    {
      "date": "2026-10-18",
      "total": 18,
      "delta": -51,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 9
    },
    {
      "date": "2026-10-17",
      "total": 69,
      "delta": -4,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-10-16",
      "total": 73,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-10-14",
      "total": 72,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 40,
        "to": 43,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 12,
          "to_days": 13
        },
        "partial": false,
        "compared_to": "2026-10-13",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 40 to 43. That category is still filling its 30-day observation window: 12 days of observed history at the previous scan, 13 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-12",
      "total": 71,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 30,
        "to": 37,
        "delta": 7,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 9,
          "to_days": 11
        },
        "partial": false,
        "compared_to": "2026-10-10",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 30 to 37. That category is still filling its 30-day observation window: 9 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": "2026-10-10",
      "total": 70,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 20,
        "to": 30,
        "delta": 10,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 6,
          "to_days": 9
        },
        "partial": false,
        "compared_to": "2026-10-07",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 20 to 30. That category is still filling its 30-day observation window: 6 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": "2026-10-07",
      "total": 69,
      "delta": 2,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 10,
        "to": 20,
        "delta": 10,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 3,
          "to_days": 6
        },
        "partial": false,
        "compared_to": "2026-10-04",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 10 to 20. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-10-03",
      "total": 67,
      "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": "2026-10-02",
        "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
    }
  ]
}