Solutions / Security

Fail closed before AI touches systems.

Security teams get action-level control: sandbox grants, connector scope, MCP quarantine, hostile output quarantine, tainted egress denial, escalation, and receipts.

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Audience

CISO, AppSec, platform security, and DevSecOps teams.

  • AI agent security
  • MCP quarantine
  • tool output quarantine
  • AI execution firewall
  • fail-closed tool calls
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Objection

Access control is not action control.

IAM may allow a user or service. It does not prove that an AI action met company policy.

Workflow

Prompt-injection denial workflow

A prompt-injected tool call asks an agent to export data or mutate a system outside policy.

Securityaction boundary
StageBoundary detail
ProposeThe model emits a valid-looking action payload with urgent or misleading instructions.
InspectHELM evaluates the effect, actor, connector scope, approval, tenant, and risk class.
DenyMissing or conflicting authority returns DENY or ESCALATE before dispatch.
RecordThe denied attempt stays reviewable without running the side effect.
Fail-Closed Execution FirewallMCPPOLICYRECEIPTAUDIT
A technical figure for MCP/tool-call requests: HELM checks policy before dispatch, denies unsafe actions, and emits receipt evidence.
Fail-Closed Execution FirewallAn AI agent proposes a tool call through MCP. HELM AI Kernel checks policy before execution, denies an unsafe SQL operation, emits a signed denial receipt, and records proof into ProofGraph and EvidencePack surfaces.HELM AI Kernelpublic execution boundaryMCPtool callpolicyreceiptauditFail-closed execution firewall for AI agentsPolicy is enforced before execution. Every allow, deny, or escalation emits a signed receipt.tool calldecisionProofGraphtamper-sensitive receipt historyEvidencePackoffline-verifiable packetstandards / verification / proofFigure: fail-closed agent execution path
Text description

Agent request: an AI agent proposes a tool call through MCP.

HELM gate: HELM AI Kernel checks policy before dispatch and fails closed when the action violates policy.

Decision and proof: the action is denied, no side effect is dispatched, and a signed receipt is written for later audit.

Proof artifact

Security proof path

Security mechanism demo

AI proposes workflow work. HELM decides whether it may run. The receipt makes the decision checkable later.

ESCALATET2 / pending review
ProposeDecideReceipt
Deploy workflowESCALATE · prod_deploy.v2 · rcpt-demo-26fae4c3

Tamper detectable: changing the verdict produces a different receipt.

FAQ

Security FAQ

Does HELM replace IAM?

No. IAM remains necessary. HELM adds policy and proof around specific AI-proposed actions.

Next step

Move from reading to review.

Use public HELM AI Kernel for developer evaluation. Use reviewed access for company architecture review.

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