{
  "schema": "varexis-public-evidence-record/0.3",
  "generated_at_utc": "2026-10-14T20:21:57.226Z",
  "record_id": "VXI-EXT-TOOL-TRUST-VAULT-01-v1",
  "record_kind": "external_reference",
  "title": "Vault MCP: Secret disclosure and beta-use boundaries",
  "system": "HashiCorp Vault",
  "evidence_family": "agent_tool_trust_review",
  "index_status": "PUBLIC_SAFE_SOURCE_REVIEW",
  "evidence_state": "PRIMARY_DOCUMENTATION_REVIEW_ONLY",
  "canonical_question": "Does keeping secrets in Vault keep them out of an AI client?",
  "near_questions": [
    "Can a secrets connector reveal stored credentials to a model?",
    "Does encrypted storage prevent authorised secret retrieval?",
    "Is the Vault MCP feature documented for production use?",
    "Can this connector issue a certificate?",
    "Does a secrets assistant also change mounts?",
    "Which client receives returned Vault data?",
    "What evidence is missing for a path-level access claim?",
    "Can a secret lookup become a write operation?",
    "Which mounts should an agent review cover?",
    "Does a Vault product claim establish MCP deployment safety?",
    "When should secret isolation remain unproven?",
    "What should I save before approving a Vault connector?"
  ],
  "supported_claims": [
    {
      "claim": "Not when an authorised MCP query returns them. The Vault MCP page explicitly warns that secret data can reach clients and models, and describes both read and write operations. It labels the feature beta and discourages production deployment. This review does not establish a buyer-specific access policy.",
      "reliance": "DOCUMENTED_CAPABILITY_ONLY"
    }
  ],
  "not_demonstrated_claims": [
    "Verified buyer configuration or effective access rights",
    "Independent execution, completeness or security testing",
    "Vendor certification, legal compliance or guaranteed suitability"
  ],
  "public_summary": "Not when an authorised MCP query returns them. The Vault MCP page explicitly warns that secret data can reach clients and models, and describes both read and write operations. It labels the feature beta and discourages production deployment. This review does not establish a buyer-specific access policy.",
  "related_record_ids": [
    "VXI-EXT-TOOL-TRUST-AUTH0-01-v1",
    "VXI-EXT-TOOL-TRUST-INFISICAL-01-v1",
    "VXI-EXT-TOOL-TRUST-BITWARDEN-01-v1",
    "VXI-EXT-TOOL-TRUST-DOPPLER-01-v1"
  ],
  "source_review": {
    "source_type": "official_external_documentation",
    "source_title": "Vault MCP tools and authentication",
    "source_url": "https://developer.hashicorp.com/vault/docs/ai/mcp-server/reference",
    "checked_on": "2026-10-14",
    "candidate_record_id": "VXI-EXT-TOOL-TRUST-VAULT-01-v1",
    "candidate_record_sha256": "c5d07a1350593b82dcd6c529448c3ef1840346619e6f4e70f8b17385a1ae1022",
    "method": "Primary documentation reviewed for the published bounded statement.",
    "deployment_tested_by_varexis": false,
    "revalidation": "The delivered snapshot preserves the review date shown. Recheck current primary documentation and deployment context before relying on present applicability; payment does not trigger fresh research."
  },
  "answer_policy": {
    "classification": "DOCUMENTED_WITH_DEPLOYMENT_BOUNDARY",
    "bounded_answer": "Not when an authorised MCP query returns them. The Vault MCP page explicitly warns that secret data can reach clients and models, and describes both read and write operations. It labels the feature beta and discourages production deployment. This review does not establish a buyer-specific access policy.",
    "required_buyer_context": "Vault deployment, approved client and model, allowed mounts, credentials and production-use decision.",
    "missing_evidence": "A broader claim needs evidence matching the intended use. Payment does not upgrade the evidence state."
  },
  "private_boundary": "Raw logs, thresholds, private paths, source code, protected mechanisms and reconstruction-level details are excluded from public and paid delivery.",
  "trust_profile": {
    "schema": "varexis-agent-tool-trust/1",
    "identity": {
      "tool": "HashiCorp Vault",
      "variant": "Vault MCP beta for KV and PKI operations"
    },
    "review_status": "documentation_review_only",
    "checked_on": "2026-10-14",
    "version_scope": "Dated rolling documentation snapshot; no installed or hosted runtime version independently verified.",
    "plan_scope": "Buyer plan, entitlement and effective configuration are not verified.",
    "findings": [
      {
        "field": "operator",
        "label": "Publisher and operator",
        "status": "documented",
        "statement": "HashiCorp documents the Vault MCP server.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "purpose",
        "label": "Purpose",
        "status": "documented",
        "statement": "KV secret and PKI management through an AI client.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "reads",
        "label": "Read capability",
        "status": "documented",
        "statement": "Secret values, mounts and PKI information.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "writes",
        "label": "Write capability",
        "status": "documented",
        "statement": "Secret and mount changes, certificate issuance and PKI-role operations.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "auth",
        "label": "Authentication",
        "status": "unknown",
        "statement": "The overview does not specify the complete credential setup.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "permissions",
        "label": "Permission surface",
        "status": "unknown",
        "statement": "The overview is insufficient to establish effective path-level permissions.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "egress",
        "label": "Data leaving the environment",
        "status": "review_inference",
        "statement": "Returned secret values may enter client or model context.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "failures",
        "label": "Failure modes to consider",
        "status": "review_inference",
        "statement": "A storage-security claim can obscure disclosure through authorised reads.",
        "source_ids": [
          "vault"
        ]
      },
      {
        "field": "unknown",
        "label": "Unknowns and applicability",
        "status": "unknown",
        "statement": "Credential policy, mounted engines and client handling are unverified.",
        "source_ids": []
      },
      {
        "field": "gate",
        "label": "Suggested refusal or clarification condition",
        "status": "varexis_review_policy",
        "statement": "Require credential and client-handling evidence before relying on secret isolation.",
        "source_ids": []
      }
    ],
    "evidence_sources": [
      {
        "source_id": "vault",
        "url": "https://developer.hashicorp.com/vault/docs/ai/mcp-server/reference",
        "final_url": "https://developer.hashicorp.com/vault/ai/mcp-server",
        "title": "Vault MCP tools and authentication",
        "checked_on": "2026-10-14",
        "sha256": "3667eed445d894c7073b212b1be7be9fb7d0d655c8abf4f7f3ad910777131507",
        "bytes": 127353
      }
    ],
    "observed_tool_execution": false,
    "policy_basis": "Suggested VAREXIS review gates; apply the buyer's authorized task and policy. These conditions do not execute or enforce controls.",
    "commercial_reliance_boundary": "A source-linked review aid, not a vendor certification, security clearance or deployment assessment. Unknown does not mean false or unsafe.",
    "paid_value": {
      "decision_context": "Preserve the documented disclosure and beta limitations when assessing a secrets connector.",
      "free": "Complete review, practical questions, sources and limitations; may be saved locally.",
      "single_request": "Existing server-saved version-bound route snapshot for later authenticated retrieval.",
      "evidence_receipt": "The same snapshot plus the existing unsigned delivery receipt.",
      "excluded": [
        "Fresh vendor research",
        "Continuous monitoring or change alerts",
        "Testing the buyer configuration",
        "Private evidence or vendor certification"
      ],
      "integrity": "Hashes identify content versions; they do not prove truth or provide a signature."
    },
    "revalidation": {
      "trigger": "Recheck when permissions, deployment, authentication, source guidance or intended use changes; a purchase does not trigger revalidation.",
      "specific_watch": "Beta status, supported engines and authentication documentation."
    },
    "change_history": [
      {
        "version": 1,
        "date": "2026-10-14",
        "change": "Initial documentation review; no earlier vendor assessment claimed."
      }
    ]
  },
  "paid_access_note": "The full published answer and boundaries are free. Paid access saves the selected route and source versions, with an unsigned receipt when purchased. Preview coverage before paying. Fresh research, bespoke assessment and protected evidence are excluded.",
  "service_route": {
    "request_guide": "/varexis-index/request.html",
    "request_workflow": "/varexis-index/request-workflow.json",
    "service_id": "single_request",
    "service_routes_url": "/varexis-index/service-routes.json",
    "payment_required": true,
    "availability_endpoint": "/api/index/capabilities",
    "operational_status": "AUTOMATIC_SERVICE_CAPABILITIES_GATED",
    "checkout_url": "/index-access"
  },
  "authority_boundary": "VAREXIS-INDEX informs evidence reliance. It does not provide advice, certification, deployment authority, security assurance, production approval, or guarantee.",
  "human_page": "/varexis-index/catalog.html#vault-mcp-secret-disclosure-beta-trust",
  "machine_readable_record": "/varexis-index/records/vault-mcp-secret-disclosure-beta-trust.json"
}