{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "trycourier-courier",
  "component": "mcp",
  "generated_at": "2026-09-24T08:24:29.307Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 34,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0cd18-9686-74c3-b944-8782c42e9eba",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "put_journey_template_locale",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "put_journey_template_locale"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 07:08:55.605809+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “put_journey_template_locale” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0cd18-9686-74c3-b944-8782c42e9eba"
    },
    {
      "id": "chg_01a0cd18-9687-7b88-bd8f-f3f2774d5d76",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "replace_preference_topic",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "replace_preference_topic"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 07:08:55.605809+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "Tool “replace_preference_topic” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0cd18-9687-7b88-bd8f-f3f2774d5d76"
    },
    {
      "id": "chg_01a0cd18-9688-7d62-a262-10abd8fca725",
      "kind": "tool.added",
      "family": "",
      "subject_kind": "tool",
      "subject": "cancel_broadcast_schedule",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "cancel_broadcast_schedule",
        "destructive": "true"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 07:08:55.605809+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "New tool “cancel_broadcast_schedule”, which the server declares destructive",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0cd18-9688-7d62-a262-10abd8fca725"
    },
    {
      "id": "chg_01a0cd18-9689-7840-8173-bec51a43260d",
      "kind": "tool.added",
      "family": "",
      "subject_kind": "tool",
      "subject": "delete_broadcast",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "delete_broadcast",
        "destructive": "true"
      },
      "occurred_on": "2026-09-23",
      "occurred_at": "2026-09-23 07:08:55.605809+00",
      "observed_since": "2026-09-22",
      "source": "scan",
      "summary": "New tool “delete_broadcast”, which the server declares destructive",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0cd18-9689-7840-8173-bec51a43260d"
    },
    {
      "id": "chg_01a0a90a-4b6b-7524-8646-c2cb8cddf1fc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_journey_template",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_journey_template"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 07:06:59.159968+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool “create_journey_template” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0a90a-4b6b-7524-8646-c2cb8cddf1fc"
    },
    {
      "id": "chg_01a0a90a-4b6d-7160-a6a8-87b2751b9bc7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_notification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_notification"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 07:06:59.159968+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool “create_notification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0a90a-4b6d-7160-a6a8-87b2751b9bc7"
    },
    {
      "id": "chg_01a0a90a-4b74-7d93-81c4-ec68a6cd3f49",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "put_notification_content",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "put_notification_content"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 07:06:59.159968+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool “put_notification_content” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0a90a-4b74-7d93-81c4-ec68a6cd3f49"
    },
    {
      "id": "chg_01a0a90a-4b77-71c3-a5fd-1f18842297eb",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "put_notification_element",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "put_notification_element"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 07:06:59.159968+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool “put_notification_element” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0a90a-4b77-71c3-a5fd-1f18842297eb"
    },
    {
      "id": "chg_01a0a90a-4b78-77fc-8c2f-978a7b071e6f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "put_notification_locale",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "put_notification_locale"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 07:06:59.159968+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool “put_notification_locale” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0a90a-4b78-77fc-8c2f-978a7b071e6f"
    },
    {
      "id": "chg_01a0a90a-4b7a-7234-95fe-bf2660ba7f2e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "replace_notification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "replace_notification"
      },
      "occurred_on": "2026-09-16",
      "occurred_at": "2026-09-16 07:06:59.159968+00",
      "observed_since": "2026-09-15",
      "source": "scan",
      "summary": "Tool “replace_notification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0a90a-4b7a-7234-95fe-bf2660ba7f2e"
    },
    {
      "id": "chg_01a0a3e3-5009-75b9-afb1-7d03c0bd0643",
      "kind": "check.verdict",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.injection_markers",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "get_notification_metrics",
        "count": "1",
        "field": "tool_description",
        "quote": "do NOT tell the user",
        "marker": "concealment",
        "offset": "3262",
        "markers": "concealment"
      },
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 07:06:17.931033+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Injection markers (pass → fail)",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a0a3e3-5009-75b9-afb1-7d03c0bd0643"
    },
    {
      "id": "chg_01a06b3c-697d-7b73-b2e4-8c8582af3a74",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "1",
        "removed": "0",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-697d-7b73-b2e4-8c8582af3a74"
    },
    {
      "id": "chg_01a06b3c-6980-701d-b139-5ab2e21c5020",
      "kind": "tool.destructive_set",
      "family": "",
      "subject_kind": "tool",
      "subject": "bulk_subscribe_to_list",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "false",
      "to_value": "true",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "to": "true",
        "from": "false",
        "tool": "bulk_subscribe_to_list"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “bulk_subscribe_to_list” is now declared destructive",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6980-701d-b139-5ab2e21c5020"
    },
    {
      "id": "chg_01a06b3c-6980-777d-bafe-5b1c867af554",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_journey",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_journey"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “create_journey” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6980-777d-bafe-5b1c867af554"
    },
    {
      "id": "chg_01a06b3c-6980-7e4b-a528-e56929bf04b3",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_journey_template",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_journey_template"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “create_journey_template” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6980-7e4b-a528-e56929bf04b3"
    },
    {
      "id": "chg_01a06b3c-6981-76f1-a79a-789a1ac7f9bd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_notification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_notification"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “create_notification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6981-76f1-a79a-789a1ac7f9bd"
    },
    {
      "id": "chg_01a06b3c-6982-7495-b4be-833dea2fbf23",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "invoke_automation_template",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "invoke_automation_template"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “invoke_automation_template” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6982-7495-b4be-833dea2fbf23"
    },
    {
      "id": "chg_01a06b3c-6982-797e-8480-898c47740a04",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "invoke_journey",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "invoke_journey"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “invoke_journey” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6982-797e-8480-898c47740a04"
    },
    {
      "id": "chg_01a06b3c-6983-7551-81e9-c61ead1e8959",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_automations",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_automations"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “list_automations” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6983-7551-81e9-c61ead1e8959"
    },
    {
      "id": "chg_01a06b3c-6984-7013-854a-3781b96f0a3d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_journeys",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_journeys"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “list_journeys” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6984-7013-854a-3781b96f0a3d"
    },
    {
      "id": "chg_01a06b3c-6984-76f1-bb32-d9ef6d735e60",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "replace_journey",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "replace_journey"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “replace_journey” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6984-76f1-bb32-d9ef6d735e60"
    },
    {
      "id": "chg_01a06b3c-6988-76d9-97e3-2ddd21d14be4",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "send_message",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "send_message"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “send_message” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6988-76d9-97e3-2ddd21d14be4"
    },
    {
      "id": "chg_01a06b3c-6988-7cdc-8f8e-81bbb8c5635f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "send_message_template",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "send_message_template"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “send_message_template” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6988-7cdc-8f8e-81bbb8c5635f"
    },
    {
      "id": "chg_01a06b3c-6989-727e-90b9-da539fc97036",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "send_message_to_list",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "send_message_to_list"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “send_message_to_list” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6989-727e-90b9-da539fc97036"
    },
    {
      "id": "chg_01a06b3c-6989-7ada-9def-47e97915cb72",
      "kind": "tool.destructive_set",
      "family": "",
      "subject_kind": "tool",
      "subject": "update_provider",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "false",
      "to_value": "true",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "to": "true",
        "from": "false",
        "tool": "update_provider"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “update_provider” is now declared destructive",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6989-7ada-9def-47e97915cb72"
    },
    {
      "id": "chg_01a06b3c-6989-7ee7-bd20-d43f1e3f180e",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "update_translation",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "update_translation"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Tool “update_translation” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-6989-7ee7-bd20-d43f1e3f180e"
    },
    {
      "id": "chg_01a06b3c-698a-7390-8d79-14f686b2508f",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "1.3.7",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "1.3.7",
      "to_value": "1.3.7",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "0",
        "version": "1.3.7",
        "breaking": "1"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 07:05:16.204885+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 1.3.7)",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a06b3c-698a-7390-8d79-14f686b2508f"
    },
    {
      "id": "chg_01a037bc-bc4f-71f5-a901-5f07eda839a4",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 07:05:10.824808+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a037bc-bc4f-71f5-a901-5f07eda839a4"
    },
    {
      "id": "chg_01a01dfe-3c92-7242-a71a-a7cc0c1cb17d",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_journey",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_journey"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 07:06:35.989824+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “create_journey” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a01dfe-3c92-7242-a71a-a7cc0c1cb17d"
    },
    {
      "id": "chg_01a01dfe-3c94-71b2-8eb2-87fc752613d2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_journey_template",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_journey_template"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 07:06:35.989824+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “create_journey_template” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a01dfe-3c94-71b2-8eb2-87fc752613d2"
    },
    {
      "id": "chg_01a01dfe-3c94-7c14-b215-1d33ca042705",
      "kind": "tool.destructive_set",
      "family": "",
      "subject_kind": "tool",
      "subject": "put_journey_template_content",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "false",
      "to_value": "true",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "to": "true",
        "from": "false",
        "tool": "put_journey_template_content"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 07:06:35.989824+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “put_journey_template_content” is now declared destructive",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a01dfe-3c94-7c14-b215-1d33ca042705"
    },
    {
      "id": "chg_01a01dfe-3c95-735e-a6bd-cb6408d40ebc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "put_journey_template_content",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "put_journey_template_content"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 07:06:35.989824+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “put_journey_template_content” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a01dfe-3c95-735e-a6bd-cb6408d40ebc"
    },
    {
      "id": "chg_01a01dfe-3c95-7d6f-b80d-8224ab36990b",
      "kind": "tool.destructive_set",
      "family": "",
      "subject_kind": "tool",
      "subject": "replace_journey",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "false",
      "to_value": "true",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "to": "true",
        "from": "false",
        "tool": "replace_journey"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 07:06:35.989824+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “replace_journey” is now declared destructive",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a01dfe-3c95-7d6f-b80d-8224ab36990b"
    },
    {
      "id": "chg_01a01dfe-3c96-7319-b40a-bd39498884ca",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "replace_journey",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "replace_journey"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 07:06:35.989824+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Tool “replace_journey” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/trycourier-courier/mcp#chg-chg_01a01dfe-3c96-7319-b40a-bd39498884ca"
    }
  ],
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      "date": "2026-09-23",
      "total": 79,
      "delta": 0,
      "tracked": true,
      "explained": true,
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      "attribution": null,
      "event_count": 26
    },
    {
      "date": "2026-09-16",
      "total": 79,
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      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-09-15",
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      "tracked": true,
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      "beyond_event_horizon": false,
      "attribution": null,
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    {
      "date": "2026-09-04",
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      "delta": 1,
      "tracked": true,
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      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 25
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    {
      "date": "2026-08-26",
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      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
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    {
      "date": "2026-08-25",
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      "tracked": true,
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    {
      "date": "2026-08-20",
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      "delta": null,
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    {
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}