{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "world-agentindex-x402",
  "component": "x402",
  "generated_at": "2026-09-20T18:30:05.866Z",
  "tracking_since": "2026-09-05",
  "counts": {
    "critical": 0,
    "security": 49,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0bc60-19d2-7520-9adb-bd1fb7078cb5",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "contact_kairos",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "contact_kairos"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “contact_kairos” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d2-7520-9adb-bd1fb7078cb5"
    },
    {
      "id": "chg_01a0bc60-19d2-7e56-89d4-86ed494c7cdd",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "coordination_thread_schema",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "coordination_thread_schema"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “coordination_thread_schema” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d2-7e56-89d4-86ed494c7cdd"
    },
    {
      "id": "chg_01a0bc60-19d3-758a-a557-b218025459a3",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "coordination_thread_snapshot_schema",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "coordination_thread_snapshot_schema"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “coordination_thread_snapshot_schema” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d3-758a-a557-b218025459a3"
    },
    {
      "id": "chg_01a0bc60-19d3-7a63-a93f-88a999db25a2",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "detect_language",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "detect_language"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “detect_language” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d3-7a63-a93f-88a999db25a2"
    },
    {
      "id": "chg_01a0bc60-19d4-7586-8384-ca4a39bef472",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "digest_tool_result",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "digest_tool_result"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “digest_tool_result” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d4-7586-8384-ca4a39bef472"
    },
    {
      "id": "chg_01a0bc60-19d4-79e1-9b92-8453ce71b453",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "discover_mcp_servers",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "discover_mcp_servers"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “discover_mcp_servers” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d4-79e1-9b92-8453ce71b453"
    },
    {
      "id": "chg_01a0bc60-19d4-7da5-b52f-39ca76e30631",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "discover_semantic",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "discover_semantic"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “discover_semantic” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d4-7da5-b52f-39ca76e30631"
    },
    {
      "id": "chg_01a0bc60-19d5-7243-b9cd-f4d407d2ab0f",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_agent_trust_kit",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "get_agent_trust_kit"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “get_agent_trust_kit” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d5-7243-b9cd-f4d407d2ab0f"
    },
    {
      "id": "chg_01a0bc60-19d5-7732-ab5a-064794c91de2",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "get_welcome_salon",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "get_welcome_salon"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “get_welcome_salon” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d5-7732-ab5a-064794c91de2"
    },
    {
      "id": "chg_01a0bc60-19d7-7447-9ae8-a685e1e93a93",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "honest_delivery_refusal_schema",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "honest_delivery_refusal_schema"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “honest_delivery_refusal_schema” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d7-7447-9ae8-a685e1e93a93"
    },
    {
      "id": "chg_01a0bc60-19d7-78cc-abcb-a70202691126",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mesh_claim_bounty",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mesh_claim_bounty"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “mesh_claim_bounty” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d7-78cc-abcb-a70202691126"
    },
    {
      "id": "chg_01a0bc60-19d7-7d11-bbe5-db06acdf6f1e",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mesh_ledger",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mesh_ledger"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “mesh_ledger” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d7-7d11-bbe5-db06acdf6f1e"
    },
    {
      "id": "chg_01a0bc60-19d8-7244-82d2-0dc8c564618d",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mesh_list_bounties",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mesh_list_bounties"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “mesh_list_bounties” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d8-7244-82d2-0dc8c564618d"
    },
    {
      "id": "chg_01a0bc60-19d8-773b-9029-88101ebdba04",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mesh_list_nodes",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mesh_list_nodes"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “mesh_list_nodes” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d8-773b-9029-88101ebdba04"
    },
    {
      "id": "chg_01a0bc60-19d8-7b6c-8c6c-ef3b084ffe1d",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mesh_post_bounty",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mesh_post_bounty"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “mesh_post_bounty” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d8-7b6c-8c6c-ef3b084ffe1d"
    },
    {
      "id": "chg_01a0bc60-19d9-71df-b8c2-5fca3926cc61",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "mesh_register_node",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "mesh_register_node"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “mesh_register_node” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d9-71df-b8c2-5fca3926cc61"
    },
    {
      "id": "chg_01a0bc60-19d9-769f-adfd-2c803094edd2",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "poll_contact_kairos",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "poll_contact_kairos"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “poll_contact_kairos” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d9-769f-adfd-2c803094edd2"
    },
    {
      "id": "chg_01a0bc60-19d9-7b64-98a2-ff564d5c8773",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "relationship_memory_schema",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "relationship_memory_schema"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “relationship_memory_schema” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d9-7b64-98a2-ff564d5c8773"
    },
    {
      "id": "chg_01a0bc60-19d9-7f3b-9791-9239a05b9827",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "return_visit_pledge_schema",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "return_visit_pledge_schema"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “return_visit_pledge_schema” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19d9-7f3b-9791-9239a05b9827"
    },
    {
      "id": "chg_01a0bc60-19da-74a4-a599-5adc73c9a9d2",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "tool_delivery_receipt_schema",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "tool_delivery_receipt_schema"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “tool_delivery_receipt_schema” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19da-74a4-a599-5adc73c9a9d2"
    },
    {
      "id": "chg_01a0bc60-19da-790f-b606-8091169c90cc",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "validate_coordination_thread_snapshot",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "validate_coordination_thread_snapshot"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “validate_coordination_thread_snapshot” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19da-790f-b606-8091169c90cc"
    },
    {
      "id": "chg_01a0bc60-19da-7d58-b395-bfb7b87cabe1",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "validate_coordination_thread_turn",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "validate_coordination_thread_turn"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “validate_coordination_thread_turn” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19da-7d58-b395-bfb7b87cabe1"
    },
    {
      "id": "chg_01a0bc60-19db-7317-8b93-d6651835d44d",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "validate_honest_delivery_refusal",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "validate_honest_delivery_refusal"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “validate_honest_delivery_refusal” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19db-7317-8b93-d6651835d44d"
    },
    {
      "id": "chg_01a0bc60-19db-7773-81a2-1685661b95e9",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "validate_relationship_memory",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "validate_relationship_memory"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “validate_relationship_memory” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19db-7773-81a2-1685661b95e9"
    },
    {
      "id": "chg_01a0bc60-19db-7b5b-b426-3395168a3e09",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "validate_return_visit_pledge",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "validate_return_visit_pledge"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “validate_return_visit_pledge” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19db-7b5b-b426-3395168a3e09"
    },
    {
      "id": "chg_01a0bc60-19db-7f3f-8a36-fd542b8b8caf",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "validate_tool_delivery_receipt",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "validate_tool_delivery_receipt"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “validate_tool_delivery_receipt” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19db-7f3f-8a36-fd542b8b8caf"
    },
    {
      "id": "chg_01a0bc60-19dc-747e-adca-efaee71ee371",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "verify_tool_result_digest",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "verify_tool_result_digest"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool “verify_tool_result_digest” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19dc-747e-adca-efaee71ee371"
    },
    {
      "id": "chg_01a0bc60-19e1-7151-82c0-665d63e56ecb",
      "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": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19e1-7151-82c0-665d63e56ecb"
    },
    {
      "id": "chg_01a0bc60-19e1-7645-b4bc-82c703f0df4b",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "4.0.3",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "4.0.3",
      "to_value": "4.0.3",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "27",
        "version": "4.0.3",
        "breaking": "0"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:13:29.759154+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 4.0.3)",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0bc60-19e1-7645-b4bc-82c703f0df4b"
    },
    {
      "id": "chg_01a0b739-f0ea-7657-8c83-56e2e8f842ee",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "discover_semantic",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "discover_semantic"
      },
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 01:13:42.777341+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Tool “discover_semantic” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0b739-f0ea-7657-8c83-56e2e8f842ee"
    },
    {
      "id": "chg_01a0b739-f0fb-7522-b00a-85a2b66f9bf6",
      "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": "2026-09-19",
      "occurred_at": "2026-09-19 01:13:42.777341+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0b739-f0fb-7522-b00a-85a2b66f9bf6"
    },
    {
      "id": "chg_01a0b213-c022-7a21-889c-68fe1bcf7176",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "discover_mcp_servers",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "discover_mcp_servers"
      },
      "occurred_on": "2026-09-18",
      "occurred_at": "2026-09-18 01:13:53.865137+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "Tool “discover_mcp_servers” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0b213-c022-7a21-889c-68fe1bcf7176"
    },
    {
      "id": "chg_01a0b213-c029-7b23-b1ac-1d968debe5f9",
      "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": "2026-09-18",
      "occurred_at": "2026-09-18 01:13:53.865137+00",
      "observed_since": "2026-09-17",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a0b213-c029-7b23-b1ac-1d968debe5f9"
    },
    {
      "id": "chg_01a09327-9526-7d10-93b7-5bfdb4890833",
      "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": "2026-09-12",
      "occurred_at": "2026-09-12 01:07:19.894855+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a09327-9526-7d10-93b7-5bfdb4890833"
    },
    {
      "id": "chg_01a07e8e-0b52-73be-97e8-a21d5d0b0ca7",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.07",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "3",
        "added": "5",
        "breaks": "0",
        "removed": "1",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Stability (0.07 → fail)",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b52-73be-97e8-a21d5d0b0ca7"
    },
    {
      "id": "chg_01a07e8e-0b53-74ea-b579-c98afc824215",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "detect_language",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "detect_language"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “detect_language” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b53-74ea-b579-c98afc824215"
    },
    {
      "id": "chg_01a07e8e-0b53-7e1f-a687-ef0598d951ac",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "extract_structured",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "extract_structured"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “extract_structured” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b53-7e1f-a687-ef0598d951ac"
    },
    {
      "id": "chg_01a07e8e-0b55-7801-92ca-d0da243f245c",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "fact_check",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "fact_check"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “fact_check” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b55-7801-92ca-d0da243f245c"
    },
    {
      "id": "chg_01a07e8e-0b55-7e88-81d0-abae02a7fa71",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "read_pdf",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "read_pdf"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “read_pdf” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b55-7e88-81d0-abae02a7fa71"
    },
    {
      "id": "chg_01a07e8e-0b56-74d9-a6ff-d254a22d595c",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "read_web_page",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "read_web_page"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “read_web_page” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b56-74d9-a6ff-d254a22d595c"
    },
    {
      "id": "chg_01a07e8e-0b56-7a58-9214-4e9563538d8e",
      "kind": "tool.removed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "tool": "search"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “search” was removed",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b56-7a58-9214-4e9563538d8e"
    },
    {
      "id": "chg_01a07e8e-0b57-716c-827f-13a706dd1a95",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "summarize",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "summarize"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Tool “summarize” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b57-716c-827f-13a706dd1a95"
    },
    {
      "id": "chg_01a07e8e-0b57-77bb-b99a-36d05f22fbbe",
      "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": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "The server rewrote its instructions, which are the text every model session reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b57-77bb-b99a-36d05f22fbbe"
    },
    {
      "id": "chg_01a07e8e-0b57-7c8a-8580-7a26b12f977c",
      "kind": "server.breaking_without_version_bump",
      "family": "",
      "subject_kind": "server",
      "subject": "4.0.3",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "4.0.3",
      "to_value": "4.0.3",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "removed": "2",
        "version": "4.0.3",
        "breaking": "0"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:07:13.293631+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "A breaking change shipped without a version bump (still 4.0.3)",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07e8e-0b57-7c8a-8580-7a26b12f977c"
    },
    {
      "id": "chg_01a07967-4298-73b0-a2f6-f1b93c3c2e89",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search"
      },
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 01:06:45.446443+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Tool “search” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07967-4298-73b0-a2f6-f1b93c3c2e89"
    },
    {
      "id": "chg_01a07967-429a-7287-bf7e-b7a295e66475",
      "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 01:06:45.446443+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/world-agentindex-x402/x402#chg-chg_01a07967-429a-7287-bf7e-b7a295e66475"
    },
    {
      "id": "chg_01a07440-9dbf-7705-b4f1-8efb434b7b3f",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "jobs",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "jobs"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 01:06:26.834975+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool “jobs” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07440-9dbf-7705-b4f1-8efb434b7b3f"
    },
    {
      "id": "chg_01a07440-9dbf-7c0f-9eae-281adaae32c2",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "search",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "search"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 01:06:26.834975+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool “search” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07440-9dbf-7c0f-9eae-281adaae32c2"
    },
    {
      "id": "chg_01a07440-9dc0-7457-a69f-174023adb4cd",
      "kind": "tool.description_changed",
      "family": "",
      "subject_kind": "tool",
      "subject": "translate",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": null,
      "to_value": null,
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "tool": "translate"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 01:06:26.834975+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Tool “translate” rewrote its description, which is the text the model reads",
      "link": "https://verifymcp.io/servers/world-agentindex-x402/x402#chg-chg_01a07440-9dc0-7457-a69f-174023adb4cd"
    }
  ],
  "days": [
    {
      "date": "2026-09-20",
      "total": 66,
      "delta": 4,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 44
    },
    {
      "date": "2026-09-19",
      "total": 62,
      "delta": 2,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 21
    },
    {
      "date": "2026-09-18",
      "total": 60,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 14
    },
    {
      "date": "2026-09-17",
      "total": 61,
      "delta": 1,
      "tracked": true,
      "explained": false,
      "beyond_event_horizon": false,
      "attribution": {
        "category": "Stability & Change Management",
        "from": 0,
        "to": 3,
        "delta": 3,
        "others": [],
        "accrual": null,
        "partial": false,
        "compared_to": "2026-09-16",
        "summary": "No change was recorded against any check on this day. Stability & Change Management went from 0 to 3."
      },
      "event_count": 0
    },
    {
      "date": "2026-09-12",
      "total": 60,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    },
    {
      "date": "2026-09-08",
      "total": 61,
      "delta": -1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 11
    },
    {
      "date": "2026-09-07",
      "total": 62,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 10
    },
    {
      "date": "2026-09-06",
      "total": 61,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 4
    }
  ]
}