{
  "$schema": "https://verifymcp.io/schemas/changelog.json",
  "server": "tech-tessa-tessa-mcp-server",
  "component": "aiagent",
  "generated_at": "2026-09-20T22:23:33.236Z",
  "tracking_since": "2026-07-26",
  "counts": {
    "critical": 0,
    "security": 63,
    "functional": 0,
    "cosmetic": 0
  },
  "events": [
    {
      "id": "chg_01a0bc67-90a9-79b2-a998-ccbddceefc76",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.insufficient_history",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:21:38.915497+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0bc67-90a9-79b2-a998-ccbddceefc76"
    },
    {
      "id": "chg_01a0bc67-90aa-79ac-a16a-c09f49363777",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:21:38.915497+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0bc67-90aa-79ac-a16a-c09f49363777"
    },
    {
      "id": "chg_01a0bc67-90ab-7050-b513-ba5acc69d017",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:21:38.915497+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0bc67-90ab-7050-b513-ba5acc69d017"
    },
    {
      "id": "chg_01a0bc67-90ab-7f17-8a42-505fef010ff7",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-09-20",
      "occurred_at": "2026-09-20 01:21:38.915497+00",
      "observed_since": "2026-09-19",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0bc67-90ab-7f17-8a42-505fef010ff7"
    },
    {
      "id": "chg_01a0b741-be3a-7aca-8485-4133dc164ceb",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-19",
      "occurred_at": "2026-09-19 01:22:14.113867+00",
      "observed_since": "2026-09-18",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0b741-be3a-7aca-8485-4133dc164ceb"
    },
    {
      "id": "chg_01a0acf6-c1af-7520-ae0c-06653f8748db",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 01:24:07.592133+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0acf6-c1af-7520-ae0c-06653f8748db"
    },
    {
      "id": "chg_01a0acf6-c1b0-7856-9587-1e9ed3e32e06",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-09-17",
      "occurred_at": "2026-09-17 01:24:07.592133+00",
      "observed_since": "2026-09-16",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0acf6-c1b0-7856-9587-1e9ed3e32e06"
    },
    {
      "id": "chg_01a0a2a9-8234-776a-babc-810699452741",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.97",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 01:23:32.883382+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Stability (0.97 → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0a2a9-8234-776a-babc-810699452741"
    },
    {
      "id": "chg_01a0a2a9-8237-7922-96e6-5d7bf96c7afe",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-09-15",
      "occurred_at": "2026-09-15 01:23:32.883382+00",
      "observed_since": "2026-09-14",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0a2a9-8237-7922-96e6-5d7bf96c7afe"
    },
    {
      "id": "chg_01a09d82-bc89-7842-a0aa-769cd8130fb0",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 01:23:05.929302+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a09d82-bc89-7842-a0aa-769cd8130fb0"
    },
    {
      "id": "chg_01a09d82-bc8a-7d01-ba62-bf1f25467aca",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-14",
      "occurred_at": "2026-09-14 01:23:05.929302+00",
      "observed_since": "2026-09-13",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a09d82-bc8a-7d01-ba62-bf1f25467aca"
    },
    {
      "id": "chg_01a0985e-19df-713f-9a1f-314efa5e48b4",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 01:24:58.903845+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0985e-19df-713f-9a1f-314efa5e48b4"
    },
    {
      "id": "chg_01a0985e-19e0-7789-8242-bbf7757ab245",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-09-13",
      "occurred_at": "2026-09-13 01:24:58.903845+00",
      "observed_since": "2026-09-12",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0985e-19e0-7789-8242-bbf7757ab245"
    },
    {
      "id": "chg_01a09335-b9ba-78ed-a729-046460b1a43d",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.stable",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-12",
      "occurred_at": "2026-09-12 01:22:46.782775+00",
      "observed_since": "2026-09-11",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a09335-b9ba-78ed-a729-046460b1a43d"
    },
    {
      "id": "chg_01a08e0f-7f50-7674-895a-7865b6667bbe",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 01:22:55.388768+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a08e0f-7f50-7674-895a-7865b6667bbe"
    },
    {
      "id": "chg_01a08e0f-7f51-7cdc-abf9-f5135eb0e3d3",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.97",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 01:22:55.388768+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Stability (0.97 → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a08e0f-7f51-7cdc-abf9-f5135eb0e3d3"
    },
    {
      "id": "chg_01a08e0f-7f52-7317-91d9-3b49856fca59",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 01:22:55.388768+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a08e0f-7f52-7317-91d9-3b49856fca59"
    },
    {
      "id": "chg_01a08e0f-7f53-72d8-a5b3-5c1cded8f71b",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-09-11",
      "occurred_at": "2026-09-11 01:22:55.388768+00",
      "observed_since": "2026-09-10",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a08e0f-7f53-72d8-a5b3-5c1cded8f71b"
    },
    {
      "id": "chg_01a088e6-a300-7ad8-9835-1de8a7568be1",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 01:20:11.450354+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a088e6-a300-7ad8-9835-1de8a7568be1"
    },
    {
      "id": "chg_01a088e6-a301-7baf-a6e5-f84db677aaa9",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-09-10",
      "occurred_at": "2026-09-10 01:20:11.450354+00",
      "observed_since": "2026-09-09",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a088e6-a301-7baf-a6e5-f84db677aaa9"
    },
    {
      "id": "chg_01a083c3-1e76-7805-8324-7ddfa062c0a7",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 01:23:17.692168+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a083c3-1e76-7805-8324-7ddfa062c0a7"
    },
    {
      "id": "chg_01a083c3-1e78-71b8-8d00-3981b135a1b1",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.90",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 01:23:17.692168+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Stability (0.90 → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a083c3-1e78-71b8-8d00-3981b135a1b1"
    },
    {
      "id": "chg_01a083c3-1e78-78ff-9be1-e49c3f8c709c",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 01:23:17.692168+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a083c3-1e78-78ff-9be1-e49c3f8c709c"
    },
    {
      "id": "chg_01a083c3-1e79-768c-83ab-96be14b117b4",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-09-09",
      "occurred_at": "2026-09-09 01:23:17.692168+00",
      "observed_since": "2026-09-08",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a083c3-1e79-768c-83ab-96be14b117b4"
    },
    {
      "id": "chg_01a07e9c-99ec-7adf-b805-ebca2511b3e7",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:23:07.305805+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a07e9c-99ec-7adf-b805-ebca2511b3e7"
    },
    {
      "id": "chg_01a07e9c-99ee-7d3b-91ea-2b85467f6374",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-09-08",
      "occurred_at": "2026-09-08 01:23:07.305805+00",
      "observed_since": "2026-09-07",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a07e9c-99ee-7d3b-91ea-2b85467f6374"
    },
    {
      "id": "chg_01a07977-f99a-720a-88b4-63a0d9132795",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.insufficient_history",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 01:25:00.884597+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a07977-f99a-720a-88b4-63a0d9132795"
    },
    {
      "id": "chg_01a07977-f9a0-76b8-a5c4-2e5a1bbfd023",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 01:25:00.884597+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a07977-f9a0-76b8-a5c4-2e5a1bbfd023"
    },
    {
      "id": "chg_01a07977-f9a1-7e9b-bc28-1dbaebac9a82",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 01:25:00.884597+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a07977-f9a1-7e9b-bc28-1dbaebac9a82"
    },
    {
      "id": "chg_01a07977-f9a3-76cd-b849-1c7868775da5",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-09-07",
      "occurred_at": "2026-09-07 01:25:00.884597+00",
      "observed_since": "2026-09-06",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a07977-f9a3-76cd-b849-1c7868775da5"
    },
    {
      "id": "chg_01a0744d-92ec-7d20-8dd7-28ac2a2ad036",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 01:20:35.997239+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0744d-92ec-7d20-8dd7-28ac2a2ad036"
    },
    {
      "id": "chg_01a0744d-92ee-76c7-ba30-108a89c11738",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.stable",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 01:20:35.997239+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0744d-92ee-76c7-ba30-108a89c11738"
    },
    {
      "id": "chg_01a0744d-92ee-7c72-8495-e1a09cc87279",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-09-06",
      "occurred_at": "2026-09-06 01:20:35.997239+00",
      "observed_since": "2026-09-05",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0744d-92ee-7c72-8495-e1a09cc87279"
    },
    {
      "id": "chg_01a06f29-249e-7814-8a9b-5add962c738a",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.insufficient_history",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 01:22:42.405201+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Stability (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a06f29-249e-7814-8a9b-5add962c738a"
    },
    {
      "id": "chg_01a06f29-24a0-7611-9b14-1f1558eabd02",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 01:22:42.405201+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a06f29-24a0-7611-9b14-1f1558eabd02"
    },
    {
      "id": "chg_01a06f29-24a0-7eec-a115-b288c744c928",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 01:22:42.405201+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a06f29-24a0-7eec-a115-b288c744c928"
    },
    {
      "id": "chg_01a06f29-24a2-74f6-875d-31f88d2f174e",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-09-05",
      "occurred_at": "2026-09-05 01:22:42.405201+00",
      "observed_since": "2026-09-04",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a06f29-24a2-74f6-875d-31f88d2f174e"
    },
    {
      "id": "chg_01a06a00-282a-7c4f-b03e-cb9af966efed",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 01:19:50.263527+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a06a00-282a-7c4f-b03e-cb9af966efed"
    },
    {
      "id": "chg_01a06a00-282c-70dd-868f-a149a81c9383",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.stable",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 01:19:50.263527+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a06a00-282c-70dd-868f-a149a81c9383"
    },
    {
      "id": "chg_01a06a00-282c-7763-822f-41a6e9e754ae",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-09-04",
      "occurred_at": "2026-09-04 01:19:50.263527+00",
      "observed_since": "2026-09-03",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a06a00-282c-7763-822f-41a6e9e754ae"
    },
    {
      "id": "chg_01a064d9-7c80-7ac0-9143-ceb37fdf8c44",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.insufficient_history",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 01:19:29.876379+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Stability (fail → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a064d9-7c80-7ac0-9143-ceb37fdf8c44"
    },
    {
      "id": "chg_01a064d9-7c81-7d59-98db-17b7ba5c3102",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-09-03",
      "occurred_at": "2026-09-03 01:19:29.876379+00",
      "observed_since": "2026-09-02",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a064d9-7c81-7d59-98db-17b7ba5c3102"
    },
    {
      "id": "chg_01a05fb3-1819-7b41-8c8f-e6b0669c0ecc",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.stable",
      "to_code": "stability.churn",
      "from_value": "pass",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "30",
        "added": "0",
        "breaks": "0",
        "removed": "10",
        "auth_transport": "0"
      },
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 01:19:27.721821+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Stability (pass → fail)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a05fb3-1819-7b41-8c8f-e6b0669c0ecc"
    },
    {
      "id": "chg_01a05fb3-181a-7ba3-b897-b5d7fe45328d",
      "kind": "check.unverifiable",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.injection_clean",
      "to_code": "toolsafety.unreachable",
      "from_value": "pass",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 01:19:27.721821+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Tool safety (pass → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a05fb3-181a-7ba3-b897-b5d7fe45328d"
    },
    {
      "id": "chg_01a05fb3-181b-7213-b88c-c2587c638a54",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-09-02",
      "occurred_at": "2026-09-02 01:19:27.721821+00",
      "observed_since": "2026-09-01",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a05fb3-181b-7213-b88c-c2587c638a54"
    },
    {
      "id": "chg_01a05042-8765-7c9b-bc37-baff39cb62a4",
      "kind": "check.reverified",
      "family": "tool-safety-injection",
      "subject_kind": "check",
      "subject": "tool-safety-injection",
      "subject_child": "",
      "from_code": "toolsafety.unreachable",
      "to_code": "toolsafety.injection_clean",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 01:22:12.40617+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Injection markers (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a05042-8765-7c9b-bc37-baff39cb62a4"
    },
    {
      "id": "chg_01a05042-8767-72cd-be06-c1f30178044f",
      "kind": "check.appeared",
      "family": "tool-safety-manipulation",
      "subject_kind": "check",
      "subject": "tool-safety-manipulation",
      "subject_child": "",
      "from_code": null,
      "to_code": "toolsafety.manipulation_clean",
      "from_value": null,
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "units": "10",
        "judged": "10"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 01:22:12.40617+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "First check of Judged manipulation (pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a05042-8767-72cd-be06-c1f30178044f"
    },
    {
      "id": "chg_01a05042-8767-7917-84fd-f150e9319d58",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-08-30",
      "occurred_at": "2026-08-30 01:22:12.40617+00",
      "observed_since": "2026-08-29",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a05042-8767-7917-84fd-f150e9319d58"
    },
    {
      "id": "chg_01a04b18-daf4-794e-ac3d-66a1d1af48df",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.stable",
      "from_value": "unverified",
      "to_value": "pass",
      "materiality": "security",
      "direction": "improvement",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-29",
      "occurred_at": "2026-08-29 01:18:35.168371+00",
      "observed_since": "2026-08-28",
      "source": "scan",
      "summary": "Stability (unverified → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a04b18-daf4-794e-ac3d-66a1d1af48df"
    },
    {
      "id": "chg_01a040cb-8441-7697-a772-2bb79c5e062b",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-27",
      "occurred_at": "2026-08-27 01:17:54.564688+00",
      "observed_since": "2026-08-26",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a040cb-8441-7697-a772-2bb79c5e062b"
    },
    {
      "id": "chg_01a0367f-0bb2-7ecc-bad7-dd7a3cc3975d",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.stable",
      "from_value": "0.97",
      "to_value": "pass",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-25",
      "occurred_at": "2026-08-25 01:18:10.814807+00",
      "observed_since": "2026-08-24",
      "source": "scan",
      "summary": "Stability (0.97 → pass)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0367f-0bb2-7ecc-bad7-dd7a3cc3975d"
    },
    {
      "id": "chg_01a0270a-a0c2-7330-8c85-58eeab9634ac",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-08-22",
      "occurred_at": "2026-08-22 01:16:42.995749+00",
      "observed_since": "2026-08-21",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a0270a-a0c2-7330-8c85-58eeab9634ac"
    },
    {
      "id": "chg_01a01cc1-6fbc-7959-8982-1c123eaeb8d8",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.churn",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "25",
        "added": "0",
        "breaks": "0",
        "removed": "10",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-20",
      "occurred_at": "2026-08-20 01:20:34.191436+00",
      "observed_since": "2026-08-19",
      "source": "scan",
      "summary": "Stability (unverified → fail)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a01cc1-6fbc-7959-8982-1c123eaeb8d8"
    },
    {
      "id": "chg_01a01275-9eeb-7d85-ba32-ccf1bea1db68",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.insufficient_history",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-18",
      "occurred_at": "2026-08-18 01:21:33.33151+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Stability (fail → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a01275-9eeb-7d85-ba32-ccf1bea1db68"
    },
    {
      "id": "chg_01a01275-9ef2-7273-8e0c-59d77730af16",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-18",
      "occurred_at": "2026-08-18 01:21:33.33151+00",
      "observed_since": "2026-08-17",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a01275-9ef2-7273-8e0c-59d77730af16"
    },
    {
      "id": "chg_01a00824-58a3-733d-8619-51332b2dbe87",
      "kind": "check.reverified",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.insufficient_history",
      "to_code": "stability.churn",
      "from_value": "unverified",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "21",
        "added": "0",
        "breaks": "0",
        "removed": "10",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-16",
      "occurred_at": "2026-08-16 01:16:34.800872+00",
      "observed_since": "2026-08-15",
      "source": "scan",
      "summary": "Stability (unverified → fail)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_01a00824-58a3-733d-8619-51332b2dbe87"
    },
    {
      "id": "chg_019ffdda-b436-7ed0-b03f-9ff0566fd083",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.churn",
      "to_code": "stability.insufficient_history",
      "from_value": "fail",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 01:19:56.431199+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Stability (fail → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_019ffdda-b436-7ed0-b03f-9ff0566fd083"
    },
    {
      "id": "chg_019ffdda-b438-7e90-aa63-f372edee8068",
      "kind": "capture.status_changed",
      "family": "",
      "subject_kind": "server",
      "subject": "capture",
      "subject_child": "",
      "from_code": null,
      "to_code": null,
      "from_value": "verified",
      "to_value": "not_mcp",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "to": "not_mcp",
        "from": "verified"
      },
      "occurred_on": "2026-08-14",
      "occurred_at": "2026-08-14 01:19:56.431199+00",
      "observed_since": "2026-08-13",
      "source": "scan",
      "summary": "Endpoint reachability (reachable → not serving MCP)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_019ffdda-b438-7e90-aa63-f372edee8068"
    },
    {
      "id": "chg_019ff8b1-8712-75ea-ad41-542738aff224",
      "kind": "check.verdict",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.churn",
      "from_value": "0.57",
      "to_value": "fail",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {
        "days": "18",
        "added": "0",
        "breaks": "0",
        "removed": "10",
        "auth_transport": "0"
      },
      "occurred_on": "2026-08-13",
      "occurred_at": "2026-08-13 01:16:51.80809+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Stability (0.57 → fail)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_019ff8b1-8712-75ea-ad41-542738aff224"
    },
    {
      "id": "chg_019ff8b1-8713-729c-ad62-d9bef0517edc",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-13",
      "occurred_at": "2026-08-13 01:16:51.80809+00",
      "observed_since": "2026-08-12",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_019ff8b1-8713-729c-ad62-d9bef0517edc"
    },
    {
      "id": "chg_019ff390-26cb-761e-804f-b07eeaf91645",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_unlisted",
      "to_code": "auth.none_undeclared",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {
        "auth": "none",
        "undeclared_tools": "10"
      },
      "occurred_on": "2026-08-12",
      "occurred_at": "2026-08-12 01:22:18.418091+00",
      "observed_since": "2026-08-11",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to call this server, and 10 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_019ff390-26cb-761e-804f-b07eeaf91645"
    },
    {
      "id": "chg_019fe416-6a3f-7526-b674-dbe390076ba0",
      "kind": "check.unverifiable",
      "family": "stability",
      "subject_kind": "check",
      "subject": "stability",
      "subject_child": "",
      "from_code": "stability.building_history",
      "to_code": "stability.insufficient_history",
      "from_value": "0.43",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "regression",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 01:15:01.93027+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Stability (0.43 → unverified)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_019fe416-6a3f-7526-b674-dbe390076ba0"
    },
    {
      "id": "chg_019fe416-6a43-7015-ac5a-75d31a37ae07",
      "kind": "check.reason",
      "family": "auth-oauth",
      "subject_kind": "check",
      "subject": "auth-oauth",
      "subject_child": "",
      "from_code": "auth.none_undeclared",
      "to_code": "auth.none_unlisted",
      "from_value": "unverified",
      "to_value": "unverified",
      "materiality": "security",
      "direction": "neutral",
      "score_delta": null,
      "detail": {},
      "occurred_on": "2026-08-09",
      "occurred_at": "2026-08-09 01:15:01.93027+00",
      "observed_since": "2026-08-08",
      "source": "scan",
      "summary": "Authorization (Authorisation not fully verified: no authorisation is required to connect, but we couldn't read the tool list to see what that exposes.)",
      "link": "https://verifymcp.io/servers/tech-tessa-tessa-mcp-server/aiagent#chg-chg_019fe416-6a43-7015-ac5a-75d31a37ae07"
    }
  ],
  "days": [
    {
      "date": "2026-09-20",
      "total": 33,
      "delta": -41,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 6
    },
    {
      "date": "2026-09-19",
      "total": 74,
      "delta": 0,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-18",
      "total": 74,
      "delta": 1,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 1
    },
    {
      "date": "2026-09-17",
      "total": 73,
      "delta": 40,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 10
    },
    {
      "date": "2026-09-15",
      "total": 33,
      "delta": -17,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 3
    },
    {
      "date": "2026-09-14",
      "total": 50,
      "delta": -23,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    },
    {
      "date": "2026-09-13",
      "total": 73,
      "delta": 22,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 8
    },
    {
      "date": "2026-09-12",
      "total": 51,
      "delta": 18,
      "tracked": true,
      "explained": true,
      "beyond_event_horizon": false,
      "attribution": null,
      "event_count": 7
    }
  ]
}