{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "mcp-dir-receita-federal-irpf-mcp",
  "component": "p-receita-federal-irpf",
  "generated_at": "2026-09-25T10:14:44.405Z",
  "tracking_since": "2026-08-19",
  "counts": {
    "critical": 0,
    "security": 22,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0c333-f6ee-7a17-81b9-2728cf7088db",
      "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": "2026-09-21",
      "occurred_at": "2026-09-21 09:02:37.547727+00",
      "observed_since": "2026-09-20",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a0c333-f6ee-7a17-81b9-2728cf7088db"
    },
    {
      "id": "chg_01a0b3c0-6cbe-7037-bc79-b85a91d4943c",
      "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": "2026-09-18",
      "occurred_at": "2026-09-18 09:02:07.157165+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a0b3c0-6cbe-7037-bc79-b85a91d4943c"
    },
    {
      "id": "chg_01a09f26-9e84-75ad-87e4-7e435d57f076",
      "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 09:01:42.919125+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a09f26-9e84-75ad-87e4-7e435d57f076"
    },
    {
      "id": "chg_01a08a99-f108-77fa-aa72-7b5d8ef98b9a",
      "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 09:15:38.713282+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a08a99-f108-77fa-aa72-7b5d8ef98b9a"
    },
    {
      "id": "chg_01a08571-2647-749b-bdda-d153629cc71a",
      "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 09:13:00.110372+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a08571-2647-749b-bdda-d153629cc71a"
    },
    {
      "id": "chg_01a07b24-91b7-79c2-8cb5-fd95470ef0f5",
      "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 09:13:09.031936+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a07b24-91b7-79c2-8cb5-fd95470ef0f5"
    },
    {
      "id": "chg_01a075fe-791b-7853-8f86-8dbfe049137a",
      "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 09:13:26.43508+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a075fe-791b-7853-8f86-8dbfe049137a"
    },
    {
      "id": "chg_01a070d7-324f-773a-b396-163c75fd5e98",
      "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 09:12:26.121325+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a070d7-324f-773a-b396-163c75fd5e98"
    },
    {
      "id": "chg_01a06685-927c-7ce6-a948-add4f4b221d1",
      "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": "2026-09-03",
      "occurred_at": "2026-09-03 09:07:04.85548+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a06685-927c-7ce6-a948-add4f4b221d1"
    },
    {
      "id": "chg_01a0615f-703c-76be-9743-3fb461eb7171",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_no_destructive",
      "from_value": "unverified",
      "to_value": "partial",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 09:07:19.440675+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Authorization (unverified → partial)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a0615f-703c-76be-9743-3fb461eb7171"
    },
    {
      "id": "chg_01a0615f-703d-70fc-ba36-ca8d5f376d8b",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 09:07:19.440675+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a0615f-703d-70fc-ba36-ca8d5f376d8b"
    },
    {
      "id": "chg_01a04279-579e-7cc7-908b-a15b7d9dfea9",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.23",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "8",
        "added": "0",
        "breaks": "0",
        "removed": "7",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 09:07:23.656811+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Stability (0.23 → fail)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a04279-579e-7cc7-908b-a15b7d9dfea9"
    },
    {
      "id": "chg_01a04279-579f-768d-8aec-ac826209efec",
      "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": "2026-08-27",
      "occurred_at": "2026-08-27 09:07:23.656811+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a04279-579f-768d-8aec-ac826209efec"
    },
    {
      "id": "chg_01a04279-579f-7d00-bcfe-2399f49e0f2b",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_no_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "partial",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 09:07:23.656811+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Authorization (partial → unverified)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a04279-579f-7d00-bcfe-2399f49e0f2b"
    },
    {
      "id": "chg_01a02de0-d882-7703-9f9e-69715b1556dc",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.10",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "4",
        "added": "0",
        "breaks": "0",
        "removed": "7",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 09:08:25.253839+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Stability (0.10 → fail)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a02de0-d882-7703-9f9e-69715b1556dc"
    },
    {
      "id": "chg_01a02de0-d882-7c8c-a41d-3aa3ea687b15",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_no_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "partial",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-23",
      "occurred_at": "2026-08-23 09:08:25.253839+00",
      "observed_since": "2026-08-22",
      "source": "scan",
      "summary": "Authorization (partial → unverified)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a02de0-d882-7c8c-a41d-3aa3ea687b15"
    },
    {
      "id": "chg_01a028ba-9497-7ce4-98cb-76705fa66a39",
      "kind": "check.reverified",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_no_destructive",
      "from_value": "unverified",
      "to_value": "partial",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 09:08:31.463901+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Authorization (unverified → partial)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a028ba-9497-7ce4-98cb-76705fa66a39"
    },
    {
      "id": "chg_01a028ba-9499-78e7-957a-4609202525fa",
      "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": "2026-08-22",
      "occurred_at": "2026-08-22 09:08:31.463901+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a028ba-9499-78e7-957a-4609202525fa"
    },
    {
      "id": "chg_01a02394-1ae1-7372-8227-76a957e98e23",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.03",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 09:08:23.674155+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Stability (0.03 → unverified)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a02394-1ae1-7372-8227-76a957e98e23"
    },
    {
      "id": "chg_01a02394-1ae1-7b9e-a085-155d1fd36809",
      "kind": "check.unverifiable",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_no_destructive",
      "to_code": "auth.none_unlisted",
      "from_value": "partial",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-21",
      "occurred_at": "2026-08-21 09:08:23.674155+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Authorization (partial → unverified)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a02394-1ae1-7b9e-a085-155d1fd36809"
    },
    {
      "id": "chg_01a02394-1ae3-7484-80c7-f636108c6849",
      "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": "2026-08-21",
      "occurred_at": "2026-08-21 09:08:23.674155+00",
      "observed_since": "2026-08-20",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/mcp-dir-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a02394-1ae3-7484-80c7-f636108c6849"
    },
    {
      "id": "chg_01a01e6d-9938-71b9-97ec-1e55fab10194",
      "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 09:08:14.201743+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-receita-federal-irpf-mcp/p-receita-federal-irpf#chg-chg_01a01e6d-9938-71b9-97ec-1e55fab10194"
    }
  ],
  "days": [
    {
      "date": "2026-09-25",
      "total": 77,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-21",
      "total": 77,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-20",
      "total": 76,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-18",
      "total": 77,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-16",
      "total": 76,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 90,
        "to": 93,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 27,
          "to_days": 28
        },
        "partial": false,
        "compared_to": "2026-09-15",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-14",
      "total": 75,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    },
    {
      "date": "2026-09-12",
      "total": 74,
      "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": "2026-09-11",
        "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": "2026-09-10",
      "total": 73,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 2
    }
  ]
}