{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "bbcbasic-testgraph",
  "component": "mcp-v2",
  "generated_at": "2026-09-20T15:40:45.592Z",
  "tracking_since": "2026-08-23",
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  },
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      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “affirm_subject_classification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74ca-74e4-a12d-e084c7c7199c"
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    {
      "id": "chg_01a09dab-74cc-7692-b636-6b02b22f3c20",
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        "tool": "assert_location"
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      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 02:07:34.529276+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “assert_location” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74cc-7692-b636-6b02b22f3c20"
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    {
      "id": "chg_01a09dab-74cc-7e8b-a4f3-338397a24ed1",
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      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 02:07:34.529276+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “correct_subject_fact” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74cc-7e8b-a4f3-338397a24ed1"
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    {
      "id": "chg_01a09dab-74ce-74b4-9a0c-b35cda0bd363",
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      "detail": {
        "tool": "enrich_subject"
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      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 02:07:34.529276+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “enrich_subject” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74ce-74b4-9a0c-b35cda0bd363"
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    {
      "id": "chg_01a09dab-74cf-717e-a733-6a6ab8bfc55e",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "propose_subject_reclassification"
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      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 02:07:34.529276+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “propose_subject_reclassification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74cf-717e-a733-6a6ab8bfc55e"
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    {
      "id": "chg_01a09dab-74cf-78ea-a599-3c607509e7d0",
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      "subject_kind": "tool",
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      "materiality": "security",
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      "detail": {
        "tool": "resolve_subject_hierarchy"
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      "occurred_at": "2026-09-14 02:07:34.529276+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “resolve_subject_hierarchy” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74cf-78ea-a599-3c607509e7d0"
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    {
      "id": "chg_01a09dab-74d0-7305-a020-989815bef5a5",
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      "subject_kind": "tool",
      "subject": "save_experience",
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      "materiality": "security",
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      "detail": {
        "tool": "save_experience"
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      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 02:07:34.529276+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “save_experience” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74d0-7305-a020-989815bef5a5"
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    {
      "id": "chg_01a09dab-74d1-70c3-8c43-9ca1132aad06",
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      "subject_kind": "tool",
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      "from_code": null,
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      "materiality": "security",
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      "detail": {
        "tool": "set_type_relationship"
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      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 02:07:34.529276+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool “set_type_relationship” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09dab-74d1-70c3-8c43-9ca1132aad06"
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    {
      "id": "chg_01a09885-2555-7467-a961-31654ff8f1b3",
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      "subject_kind": "tool",
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_subject_hierarchy"
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      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 02:07:37.740399+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “resolve_subject_hierarchy” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09885-2555-7467-a961-31654ff8f1b3"
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    {
      "id": "chg_01a09885-2556-7365-a0b4-a0f7e6d94363",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search",
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      "from_code": null,
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      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
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      "detail": {
        "tool": "search"
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      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 02:07:37.740399+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “search” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09885-2556-7365-a0b4-a0f7e6d94363"
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    {
      "id": "chg_01a09885-2556-789e-9e48-0d7581aa5b84",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "vocabulary_index",
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      "from_code": null,
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      "materiality": "security",
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      "detail": {
        "tool": "vocabulary_index"
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      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 02:07:37.740399+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Tool “vocabulary_index” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09885-2556-789e-9e48-0d7581aa5b84"
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    {
      "id": "chg_01a09885-2559-7cc6-9122-aa34a40a93bf",
      "kind": "server.instructions_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "instructions",
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      "from_code": null,
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      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 02:07:37.740399+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a09885-2559-7cc6-9122-aa34a40a93bf"
    },
    {
      "id": "chg_01a05593-8668-7006-9f4d-178ec1108187",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "affirm_subject_classification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "affirm_subject_classification"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “affirm_subject_classification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8668-7006-9f4d-178ec1108187"
    },
    {
      "id": "chg_01a05593-8668-7d6c-9ad2-71a41fd060fe",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "assert_location",
      "subject_child": "",
      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "assert_location"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “assert_location” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8668-7d6c-9ad2-71a41fd060fe"
    },
    {
      "id": "chg_01a05593-8669-769e-822d-c98f334abc8f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "claim_deliberation",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "claim_deliberation"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “claim_deliberation” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8669-769e-822d-c98f334abc8f"
    },
    {
      "id": "chg_01a05593-866a-7261-bb41-79adf23c17c7",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "correct_subject_fact",
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      "from_code": null,
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      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "correct_subject_fact"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “correct_subject_fact” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-866a-7261-bb41-79adf23c17c7"
    },
    {
      "id": "chg_01a05593-866b-7079-89a5-6cc1d7ba0170",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_deliberation",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_deliberation"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “create_deliberation” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-866b-7079-89a5-6cc1d7ba0170"
    },
    {
      "id": "chg_01a05593-866b-7bcd-84c2-16420725f039",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "delete_experience",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "delete_experience"
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      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “delete_experience” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-866b-7bcd-84c2-16420725f039"
    },
    {
      "id": "chg_01a05593-866c-76f1-a278-9f1e8910d3e0",
      "kind": "tool.description_changed",
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      "subject_kind": "tool",
      "subject": "enrich_subject",
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      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "enrich_subject"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “enrich_subject” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-866c-76f1-a278-9f1e8910d3e0"
    },
    {
      "id": "chg_01a05593-866d-7194-9863-90c228d3b05f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_server_info",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "get_server_info"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “get_server_info” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-866d-7194-9863-90c228d3b05f"
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    {
      "id": "chg_01a05593-866d-7b49-ac4a-a536832697fa",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "propose_subject_reclassification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "propose_subject_reclassification"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “propose_subject_reclassification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-866d-7b49-ac4a-a536832697fa"
    },
    {
      "id": "chg_01a05593-866f-79ce-bedf-a557df3c669b",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "record_resolution",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "record_resolution"
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      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “record_resolution” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-866f-79ce-bedf-a557df3c669b"
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    {
      "id": "chg_01a05593-8670-7791-b91e-b29f4f6d5009",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "register_field",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "register_field"
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      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “register_field” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8670-7791-b91e-b29f4f6d5009"
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    {
      "id": "chg_01a05593-8671-7da6-8c0f-556b2052976a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "register_subject_type_alias",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "register_subject_type_alias"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “register_subject_type_alias” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8671-7da6-8c0f-556b2052976a"
    },
    {
      "id": "chg_01a05593-8672-786d-ae60-96507fdb0cd7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "reopen_subject_classification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "reopen_subject_classification"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “reopen_subject_classification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8672-786d-ae60-96507fdb0cd7"
    },
    {
      "id": "chg_01a05593-8673-7184-ae4f-c048c1a42ba0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_location_assertion",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_location_assertion"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “resolve_location_assertion” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8673-7184-ae4f-c048c1a42ba0"
    },
    {
      "id": "chg_01a05593-8673-7c14-94e1-cf85af0512a5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_subject_hierarchy",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_subject_hierarchy"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “resolve_subject_hierarchy” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8673-7c14-94e1-cf85af0512a5"
    },
    {
      "id": "chg_01a05593-8674-77bd-9a9e-0ec36a5f872a",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "retire_type_relationship",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "retire_type_relationship"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “retire_type_relationship” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8674-77bd-9a9e-0ec36a5f872a"
    },
    {
      "id": "chg_01a05593-8675-7285-8dfe-8d21cc4ef300",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "save_assessment",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "save_assessment"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “save_assessment” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8675-7285-8dfe-8d21cc4ef300"
    },
    {
      "id": "chg_01a05593-8675-7a27-9f76-be23edff6cd5",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "save_experience",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "save_experience"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “save_experience” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8675-7a27-9f76-be23edff6cd5"
    },
    {
      "id": "chg_01a05593-8676-7c77-b10a-ff3b9fa67821",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "set_review_visibility",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "set_review_visibility"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “set_review_visibility” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8676-7c77-b10a-ff3b9fa67821"
    },
    {
      "id": "chg_01a05593-8677-76f5-a80b-b51e6c94ab9f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "set_type_relationship",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "set_type_relationship"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “set_type_relationship” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8677-76f5-a80b-b51e6c94ab9f"
    },
    {
      "id": "chg_01a05593-8678-7331-b9af-53d1bacd65b0",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "submit_contribution",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "submit_contribution"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "Tool “submit_contribution” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8678-7331-b9af-53d1bacd65b0"
    },
    {
      "id": "chg_01a05593-8678-7dfe-8d72-1ac47dcccad7",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "3.20.2-alpha",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "3.20.2-alpha",
      "to_value": "3.20.2-alpha",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "0",
        "version": "3.20.2-alpha",
        "breaking": "20"
      },
      "occurred_on": "2026-08-31",
      "occurred_at": "2026-08-31 02:08:46.640966+00",
      "observed_since": "2026-08-30",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 3.20.2-alpha)",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a05593-8678-7dfe-8d72-1ac47dcccad7"
    },
    {
      "id": "chg_01a0506d-44af-7aab-bc7b-6905f80da753",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "enrich_subject",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "enrich_subject"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 02:08:53.370166+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “enrich_subject” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a0506d-44af-7aab-bc7b-6905f80da753"
    },
    {
      "id": "chg_01a0506d-44b0-7838-adb9-df845e4c426c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "propose_subject_reclassification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "propose_subject_reclassification"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 02:08:53.370166+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “propose_subject_reclassification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a0506d-44b0-7838-adb9-df845e4c426c"
    },
    {
      "id": "chg_01a0506d-44b1-7177-bb83-8bf558189aa2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_subject_hierarchy",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_subject_hierarchy"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 02:08:53.370166+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “resolve_subject_hierarchy” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a0506d-44b1-7177-bb83-8bf558189aa2"
    },
    {
      "id": "chg_01a0506d-44b1-775d-9233-cb82fe4b191c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "set_type_relationship",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "set_type_relationship"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 02:08:53.370166+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “set_type_relationship” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a0506d-44b1-775d-9233-cb82fe4b191c"
    },
    {
      "id": "chg_01a0506d-44b1-7cf7-985c-f7ba343852d2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "vocabulary_index",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "vocabulary_index"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 02:08:53.370166+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Tool “vocabulary_index” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a0506d-44b1-7cf7-985c-f7ba343852d2"
    },
    {
      "id": "chg_01a04b46-d5a4-79d3-aa33-b7b9c58b65e7",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "enrich_subject",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "enrich_subject"
      },
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 02:08:48.481061+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “enrich_subject” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a04b46-d5a4-79d3-aa33-b7b9c58b65e7"
    },
    {
      "id": "chg_01a04b46-d5a6-762e-a7f2-d782a3920d39",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "propose_subject_reclassification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "propose_subject_reclassification"
      },
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 02:08:48.481061+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “propose_subject_reclassification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a04b46-d5a6-762e-a7f2-d782a3920d39"
    },
    {
      "id": "chg_01a04b46-d5a7-7457-9b23-60cc0e30aba1",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "reopen_subject_classification",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "reopen_subject_classification"
      },
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 02:08:48.481061+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Tool “reopen_subject_classification” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a04b46-d5a7-7457-9b23-60cc0e30aba1"
    },
    {
      "id": "chg_01a040f9-eae6-7f34-8df3-6cd0702cb28b",
      "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": "1",
        "breaks": "16",
        "removed": "0",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Stability (0.10 → fail)",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eae6-7f34-8df3-6cd0702cb28b"
    },
    {
      "id": "chg_01a040f9-eae8-7e96-85bd-117bdfffd548",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "assert_location",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "assert_location"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “assert_location” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eae8-7e96-85bd-117bdfffd548"
    },
    {
      "id": "chg_01a040f9-eae9-7ac0-ba1a-5a06d830a8fb",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "claim_deliberation",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "claim_deliberation"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “claim_deliberation” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eae9-7ac0-ba1a-5a06d830a8fb"
    },
    {
      "id": "chg_01a040f9-eaea-756e-897f-b1444e3073ce",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "correct_subject_fact",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "correct_subject_fact"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “correct_subject_fact” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaea-756e-897f-b1444e3073ce"
    },
    {
      "id": "chg_01a040f9-eaeb-703b-8fce-9ee7bc977248",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "create_deliberation",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "create_deliberation"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “create_deliberation” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaeb-703b-8fce-9ee7bc977248"
    },
    {
      "id": "chg_01a040f9-eaeb-7b87-8775-928bd38a022c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "delete_experience",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "delete_experience"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “delete_experience” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaeb-7b87-8775-928bd38a022c"
    },
    {
      "id": "chg_01a040f9-eaec-7745-80ad-a6d681b90370",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "enrich_subject",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "enrich_subject"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “enrich_subject” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaec-7745-80ad-a6d681b90370"
    },
    {
      "id": "chg_01a040f9-eaed-7350-8e9e-b5f4762de379",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "record_resolution",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "record_resolution"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “record_resolution” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaed-7350-8e9e-b5f4762de379"
    },
    {
      "id": "chg_01a040f9-eaee-71c1-8462-38b3fbc1c8cd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "register_field",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "register_field"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “register_field” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaee-71c1-8462-38b3fbc1c8cd"
    },
    {
      "id": "chg_01a040f9-eaee-7c1b-84b3-2c887af5b0fc",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "register_subject_type_alias",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "register_subject_type_alias"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “register_subject_type_alias” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaee-7c1b-84b3-2c887af5b0fc"
    },
    {
      "id": "chg_01a040f9-eaef-77bf-b600-d8b2bea1df04",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_location_assertion",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_location_assertion"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “resolve_location_assertion” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaef-77bf-b600-d8b2bea1df04"
    },
    {
      "id": "chg_01a040f9-eaf0-72bd-8a99-5e1f9f193131",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "resolve_subject_hierarchy",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "resolve_subject_hierarchy"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “resolve_subject_hierarchy” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaf0-72bd-8a99-5e1f9f193131"
    },
    {
      "id": "chg_01a040f9-eaf0-7cf9-97b0-456d61fec712",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "retire_type_relationship",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "retire_type_relationship"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “retire_type_relationship” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaf0-7cf9-97b0-456d61fec712"
    },
    {
      "id": "chg_01a040f9-eaf1-7a0e-8e82-2612383bd9ad",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "save_assessment",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "save_assessment"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “save_assessment” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaf1-7a0e-8e82-2612383bd9ad"
    },
    {
      "id": "chg_01a040f9-eaf2-7b09-906e-9864ba777521",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "save_experience",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "save_experience"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “save_experience” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaf2-7b09-906e-9864ba777521"
    },
    {
      "id": "chg_01a040f9-eaf3-7730-99c6-c81899122766",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "set_type_relationship",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "set_type_relationship"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “set_type_relationship” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaf3-7730-99c6-c81899122766"
    },
    {
      "id": "chg_01a040f9-eaf4-7270-b510-4dbeaa5ded27",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "submit_contribution",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "submit_contribution"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Tool “submit_contribution” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaf4-7270-b510-4dbeaa5ded27"
    },
    {
      "id": "chg_01a040f9-eaf5-7302-89e5-20c33f87532c",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "3.19.0-alpha",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "3.19.0-alpha",
      "to_value": "3.19.0-alpha",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "0",
        "version": "3.19.0-alpha",
        "breaking": "16"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 02:08:35.507669+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 3.19.0-alpha)",
      "link": "https://verifymcp.io/servers/bbcbasic-testgraph/mcp-v2#chg-chg_01a040f9-eaf5-7302-89e5-20c33f87532c"
    }
  ],
  "days": [
    {
      "date": "2026-09-20",
      "total": 70,
      "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": "2026-09-19",
        "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": "2026-09-18",
      "total": 69,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 83,
        "to": 87,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 25,
          "to_days": 26
        },
        "partial": false,
        "compared_to": "2026-09-17",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-16",
      "total": 68,
      "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": "2026-09-15",
        "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": "2026-09-14",
      "total": 67,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 13
    },
    {
      "date": "2026-09-13",
      "total": 67,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 10
    },
    {
      "date": "2026-09-12",
      "total": 67,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 63,
        "to": 67,
        "delta": 4,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 19,
          "to_days": 20
        },
        "partial": false,
        "compared_to": "2026-09-11",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-10",
      "total": 66,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 57,
        "to": 60,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 17,
          "to_days": 18
        },
        "partial": false,
        "compared_to": "2026-09-09",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-08",
      "total": 65,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 50,
        "to": 53,
        "delta": 3,
        "others": [],
        "accrual": {
          "code": "stability.building_history",
          "from_days": 15,
          "to_days": 16
        },
        "partial": false,
        "compared_to": "2026-09-07",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes."
      },
      "event_count": 0
    }
  ]
}