{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "dev-agentsim-mcp",
  "component": "mcp",
  "generated_at": "2026-10-06T14:36:18.335Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 12,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a081f6-f370-709e-9ef8-65296672c695",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.insufficient_history",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 17:00:38.849506+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a081f6-f370-709e-9ef8-65296672c695"
    },
    {
      "id": "chg_01a081f6-f374-7324-a4fd-41e6225e9686",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 17:00:38.849506+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a081f6-f374-7324-a4fd-41e6225e9686"
    },
    {
      "id": "chg_01a081f6-f375-72f7-924a-fb99d73ca5bf",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.challenge_only",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 17:00:38.849506+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a081f6-f375-72f7-924a-fb99d73ca5bf"
    },
    {
      "id": "chg_01a081f6-f37a-7604-a1e6-7bfa976af993",
      "kind": "check.unverifiable",
      "family": "transport",
      "subject_kind": "check",
      "subject": "transport",
      "subject_child": "",
      "from_code": "transport.verified",
      "to_code": "transport.auth_gated",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "transport": "streamable-http"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 17:00:38.849506+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Transport (pass → unverified)",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a081f6-f37a-7604-a1e6-7bfa976af993"
    },
    {
      "id": "chg_01a081f6-f382-79f0-ae80-28d4c6aac783",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "auth_gated",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "auth_gated",
        "from": "verified"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 17:00:38.849506+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → behind authorisation)",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a081f6-f382-79f0-ae80-28d4c6aac783"
    },
    {
      "id": "chg_01a043f3-3d8a-7011-983b-1e9f75309acd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_messages",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_messages"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 16:00:09.553491+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Tool “get_messages” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a043f3-3d8a-7011-983b-1e9f75309acd"
    },
    {
      "id": "chg_01a043f3-3d8b-7297-8614-61a75146ec29",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "list_numbers",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "list_numbers"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 16:00:09.553491+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Tool “list_numbers” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a043f3-3d8b-7297-8614-61a75146ec29"
    },
    {
      "id": "chg_01a043f3-3d8b-7824-83df-06b3afd91a31",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "provision_number",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "provision_number"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 16:00:09.553491+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Tool “provision_number” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a043f3-3d8b-7824-83df-06b3afd91a31"
    },
    {
      "id": "chg_01a043f3-3d8b-7c56-bb7e-120af7d59a3b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "release_number",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "release_number"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 16:00:09.553491+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Tool “release_number” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a043f3-3d8b-7c56-bb7e-120af7d59a3b"
    },
    {
      "id": "chg_01a043f3-3d8c-71cd-80aa-e751962a46d0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "wait_for_otp",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "wait_for_otp"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 16:00:09.553491+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "Tool “wait_for_otp” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a043f3-3d8c-71cd-80aa-e751962a46d0"
    },
    {
      "id": "chg_01a043f3-3d8d-7025-bb0e-998bdc4ee0e3",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 16:00:09.553491+00",
      "observed_since": "2026-08-27",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a043f3-3d8d-7025-bb0e-998bdc4ee0e3"
    },
    {
      "id": "chg_01a0385e-bb82-76da-9724-71dc4458e50d",
      "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 10:02:07.414757+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/dev-agentsim-mcp/mcp#chg-chg_01a0385e-bb82-76da-9724-71dc4458e50d"
    }
  ],
  "days": [
    {
      "date": "2026-09-28",
      "total": 33,
      "delta": 0,
      "tracked": true,
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      "attribution": null,
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    },
    {
      "date": "2026-09-25",
      "total": 33,
      "delta": 0,
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    {
      "date": "2026-09-08",
      "total": 33,
      "delta": -44,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
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    {
      "date": "2026-08-27",
      "total": 0,
      "delta": null,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 9
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    {
      "date": "2026-08-26",
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      "delta": null,
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      "attribution": null,
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    {
      "date": "2026-08-25",
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      "delta": null,
      "tracked": true,
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    {
      "date": "2026-08-11",
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      "delta": null,
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}