{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "mcp-dir-mercadopago-mcp",
  "component": "p-mercadopago",
  "generated_at": "2026-09-28T02:35:29.892Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 1,
    "security": 36,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a09d79-dd3f-7a0f-bcc4-4a26e70c68a5",
      "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": "2026-09-14",
      "occurred_at": "2026-09-14 01:13:24.484438+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a09d79-dd3f-7a0f-bcc4-4a26e70c68a5"
    },
    {
      "id": "chg_01a088e0-80f6-799d-86e8-c612e1c641f9",
      "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": "2026-09-10",
      "occurred_at": "2026-09-10 01:13:29.53343+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a088e0-80f6-799d-86e8-c612e1c641f9"
    },
    {
      "id": "chg_01a083b9-f586-790c-a177-b34ff92795de",
      "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": "2026-09-09",
      "occurred_at": "2026-09-09 01:13:17.315178+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a083b9-f586-790c-a177-b34ff92795de"
    },
    {
      "id": "chg_01a0796d-f55d-72e7-b3f7-f07048da5224",
      "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": "2026-09-07",
      "occurred_at": "2026-09-07 01:14:04.455683+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a0796d-f55d-72e7-b3f7-f07048da5224"
    },
    {
      "id": "chg_01a07446-0814-71b0-8b22-e0ffd68b333a",
      "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": "2026-09-06",
      "occurred_at": "2026-09-06 01:12:21.648917+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a07446-0814-71b0-8b22-e0ffd68b333a"
    },
    {
      "id": "chg_01a06f1f-f5cc-7351-93d7-f95cd62f3501",
      "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": "2026-09-05",
      "occurred_at": "2026-09-05 01:12:40.592639+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a06f1f-f5cc-7351-93d7-f95cd62f3501"
    },
    {
      "id": "chg_01a069f9-48a9-7e89-af6e-2b55ad83ec20",
      "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": "2026-09-04",
      "occurred_at": "2026-09-04 01:12:19.816826+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a069f9-48a9-7e89-af6e-2b55ad83ec20"
    },
    {
      "id": "chg_01a064d2-d9da-7e8d-a69a-2ce61c36ee65",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_markers",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "openfinance_list_accounts",
        "count": "1",
        "field": "tool_description",
        "quote": "do NOT tell the user",
        "marker": "concealment",
        "offset": "1794",
        "markers": "concealment"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 01:12:15.009553+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Injection markers (unverified → fail)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a064d2-d9da-7e8d-a69a-2ce61c36ee65"
    },
    {
      "id": "chg_01a064d2-d9dc-710b-a01b-2d2289c4da21",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.stable",
      "from_value": "fail",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 01:12:15.009553+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Stability (fail → pass)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a064d2-d9dc-710b-a01b-2d2289c4da21"
    },
    {
      "id": "chg_01a064d2-d9dc-76d9-9898-f453dbf72643",
      "kind": "check.appeared",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": null,
      "to_code": "toolsafety.manipulation_clean",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "units": "26",
        "judged": "26"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 01:12:15.009553+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a064d2-d9dc-76d9-9898-f453dbf72643"
    },
    {
      "id": "chg_01a064d2-d9dc-7ba3-8b78-788f46d6a613",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_destructive_unverified",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "openfinance_disconnect_bank"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 01:12:15.009553+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: this server exposes a tool marked destructive (openfinance_disconnect_bank) and its handshake is open, but we could not confirm whether a tool call is gated, so we do not assert it is callable unauthenticated.)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a064d2-d9dc-7ba3-8b78-788f46d6a613"
    },
    {
      "id": "chg_01a02705-5a9f-73b3-add1-30103a4ea71f",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 01:10:57.4002+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Authorization (fail → unverified)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a02705-5a9f-73b3-add1-30103a4ea71f"
    },
    {
      "id": "chg_01a02705-5aa0-71af-9a35-1e8b1a100e68",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.87",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "27",
        "added": "0",
        "breaks": "0",
        "removed": "25",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 01:10:57.4002+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Stability (0.87 → fail)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a02705-5aa0-71af-9a35-1e8b1a100e68"
    },
    {
      "id": "chg_01a021de-c11d-7de1-bfbc-5325487e40a7",
      "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": "2026-08-21",
      "occurred_at": "2026-08-21 01:10:41.650796+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a021de-c11d-7de1-bfbc-5325487e40a7"
    },
    {
      "id": "chg_01a01cb8-b532-7db3-a2d4-10ae822ee1d4",
      "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": "2026-08-20",
      "occurred_at": "2026-08-20 01:11:02.130502+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a01cb8-b532-7db3-a2d4-10ae822ee1d4"
    },
    {
      "id": "chg_01a01791-b206-7b1f-b97e-ee51148ca8e7",
      "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": "2026-08-19",
      "occurred_at": "2026-08-19 01:10:19.347932+00",
      "observed_since": "2026-08-18",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a01791-b206-7b1f-b97e-ee51148ca8e7"
    },
    {
      "id": "chg_01a0126c-2ba4-7350-91d4-e96a09e3c6e9",
      "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": "2026-08-18",
      "occurred_at": "2026-08-18 01:11:13.903079+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a0126c-2ba4-7350-91d4-e96a09e3c6e9"
    },
    {
      "id": "chg_01a00d44-91b3-7199-b48d-ed91b67519c3",
      "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": "2026-08-17",
      "occurred_at": "2026-08-17 01:09:52.637412+00",
      "observed_since": "2026-08-16",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a00d44-91b3-7199-b48d-ed91b67519c3"
    },
    {
      "id": "chg_01a0081f-f053-79da-846a-51049406fb4b",
      "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": "2026-08-16",
      "occurred_at": "2026-08-16 01:11:45.939083+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a0081f-f053-79da-846a-51049406fb4b"
    },
    {
      "id": "chg_01a002f7-94b8-76aa-996f-1c435f35ebd8",
      "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": "2026-08-15",
      "occurred_at": "2026-08-15 01:09:34.968643+00",
      "observed_since": "2026-08-14",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_01a002f7-94b8-76aa-996f-1c435f35ebd8"
    },
    {
      "id": "chg_019ffdd3-337b-71b6-b55d-981463966061",
      "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": "2026-08-14",
      "occurred_at": "2026-08-14 01:11:44.709504+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019ffdd3-337b-71b6-b55d-981463966061"
    },
    {
      "id": "chg_019ff8aa-b0c2-7808-bc63-c3a8c59ca2f4",
      "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": "2026-08-13",
      "occurred_at": "2026-08-13 01:09:23.743487+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019ff8aa-b0c2-7808-bc63-c3a8c59ca2f4"
    },
    {
      "id": "chg_019ff386-37ba-7d2a-896c-27126bcbf600",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "toolkit_info",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "toolkit_info"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 01:11:27.337245+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Tool “toolkit_info” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019ff386-37ba-7d2a-896c-27126bcbf600"
    },
    {
      "id": "chg_019ff386-37bb-7923-a297-5208251b0c43",
      "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": "2026-08-12",
      "occurred_at": "2026-08-12 01:11:27.337245+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019ff386-37bb-7923-a297-5208251b0c43"
    },
    {
      "id": "chg_019fe939-328e-7019-b31d-d552ce325437",
      "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": "2026-08-10",
      "occurred_at": "2026-08-10 01:11:07.620651+00",
      "observed_since": "2026-08-09",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fe939-328e-7019-b31d-d552ce325437"
    },
    {
      "id": "chg_019fe410-6f81-7776-bffa-246444624773",
      "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": "2026-08-09",
      "occurred_at": "2026-08-09 01:08:30.183637+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fe410-6f81-7776-bffa-246444624773"
    },
    {
      "id": "chg_019fdeec-989d-7357-bb20-fd6157665ca3",
      "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": "2026-08-08",
      "occurred_at": "2026-08-08 01:11:15.304304+00",
      "observed_since": "2026-08-07",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fdeec-989d-7357-bb20-fd6157665ca3"
    },
    {
      "id": "chg_019fd9c3-d1a4-7552-b0d8-9d63394dab4a",
      "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": "2026-08-07",
      "occurred_at": "2026-08-07 01:08:36.86153+00",
      "observed_since": "2026-08-06",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fd9c3-d1a4-7552-b0d8-9d63394dab4a"
    },
    {
      "id": "chg_019fd49f-5a1d-7894-921e-5ce051b9c43b",
      "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": "2026-08-06",
      "occurred_at": "2026-08-06 01:10:40.90485+00",
      "observed_since": "2026-08-05",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fd49f-5a1d-7894-921e-5ce051b9c43b"
    },
    {
      "id": "chg_019fcf76-d531-7776-977f-d36537479c05",
      "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": "2026-08-05",
      "occurred_at": "2026-08-05 01:08:19.347931+00",
      "observed_since": "2026-08-04",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fcf76-d531-7776-977f-d36537479c05"
    },
    {
      "id": "chg_019fc52d-5b29-7e9d-9d7c-f0126ac16a63",
      "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": "2026-08-03",
      "occurred_at": "2026-08-03 01:11:51.717924+00",
      "observed_since": "2026-08-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fc52d-5b29-7e9d-9d7c-f0126ac16a63"
    },
    {
      "id": "chg_019fc00b-40ef-72db-8108-063590fb6090",
      "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": "2026-08-02",
      "occurred_at": "2026-08-02 01:16:30.804976+00",
      "observed_since": "2026-08-01",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fc00b-40ef-72db-8108-063590fb6090"
    },
    {
      "id": "chg_019fbae2-7dc1-76e0-9ebc-ca8367fb6376",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.unreachable",
      "to_code": "auth.none_destructive",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "critical",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "openfinance_disconnect_bank"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 01:13:53.324062+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Authorization (unverified → fail)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fbae2-7dc1-76e0-9ebc-ca8367fb6376"
    },
    {
      "id": "chg_019fbae2-7dc2-7140-bae1-086034d7345b",
      "kind": "check.reverified",
      "family": "hsts",
      "subject_kind": "check",
      "subject": "hsts",
      "subject_child": "",
      "from_code": "headers.inconclusive",
      "to_code": "headers.hsts_absent",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 01:13:53.324062+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "HSTS header (unverified → fail)",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fbae2-7dc2-7140-bae1-086034d7345b"
    },
    {
      "id": "chg_019fbae2-7dc2-774e-aa2b-e5be89007098",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "marketplace",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "marketplace"
      },
      "occurred_on": "2026-08-01",
      "occurred_at": "2026-08-01 01:13:53.324062+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "Tool “marketplace” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fbae2-7dc2-774e-aa2b-e5be89007098"
    },
    {
      "id": "chg_019fbae2-7dc3-722b-9b99-92611e741854",
      "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": "2026-08-01",
      "occurred_at": "2026-08-01 01:13:53.324062+00",
      "observed_since": "2026-07-31",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019fbae2-7dc3-722b-9b99-92611e741854"
    },
    {
      "id": "chg_019faf3c-0495-7540-97d8-afbd4281ae66",
      "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": "2026-07-29",
      "occurred_at": "2026-07-29 18:56:13.943442+00",
      "observed_since": "2026-07-28",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-mercadopago-mcp/p-mercadopago#chg-chg_019faf3c-0495-7540-97d8-afbd4281ae66"
    }
  ],
  "days": [
    {
      "date": "2026-09-28",
      "total": 63,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-27",
      "total": 63,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 77,
        "to": 80,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 23,
          "to_days": 24
        },
        "partial": false,
        "compared_to": "2026-09-26",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 77 to 80. That category is still filling its 30-day observation window: 23 days of observed history at the previous scan, 24 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-25",
      "total": 62,
      "delta": -4,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-14",
      "total": 66,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-10",
      "total": 66,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-09",
      "total": 66,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-07",
      "total": 66,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-06",
      "total": 66,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    }
  ]
}