SiteEgress
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Agent Guard 1.2.0

AI Agent Firewall

Agent Guard is a separate browser-agent security product. On sites a user explicitly authorizes, it evaluates supported actions against intent and local policy, can request approval or block supported commits, and preserves a minimized local audit trail.

Add Agent Guard to Chrome See the product boundary
Separate codebase Policy-first Auditable
Separate product

Agent Guard is not the SiteEgress Chrome extension.

SiteEgress inspects browser-visible website privacy behavior. Agent Guard supervises supported browser-visible agent actions on sites the user authorizes. The products have separate codebases, permission models, interfaces, privacy policies, and release paths.

View the SiteEgress product
SiteEgress Security Suite

Two extensions. One optional local security context.

SiteEgress and Agent Guard remain independent Chrome extensions. When both are installed and both local bridge toggles are enabled, they can exchange a minimized, origin-scoped security summary on the device.

1

Install independently

Use either extension alone, or install both from their separate Chrome Web Store listings.

2

Enable both sides

The bridge is off by default. Each extension must opt in before product summaries are exchanged.

3

Review shared context

Agent Guard can see SiteEgress destination risk context; SiteEgress can show minimized Agent Guard action and policy context.

Minimized fields only

  • HTTP(S) origin or destination hostname
  • Known service or action category
  • Aggregate scores, counts, policy outcomes, and confidence
  • Versioned evidence metadata with bounded collections

Never exchanged

  • Page text or prompts
  • Typed form values, passwords, secrets, Cookie or Storage values
  • Request or response bodies and URL parameter values
  • Raw destination IP addresses

Bridge context is evidence, not authority. SiteEgress cannot approve an Agent Guard action, and Agent Guard cannot rewrite a SiteEgress audit.

Install SiteEgressInstall Agent Guard
Intended capabilities

Runtime controls designed for agentic systems

These capabilities describe the published release. Coverage remains limited to supported browser-visible channels and is not complete protection against every Agent or prompt-injection risk.

Prompt and content risk screening

Identify prompt injection patterns, untrusted instructions, hidden directives, and risky content before an agent acts.

Tool and MCP policy

Define which tools, MCP servers, methods, and resource scopes an agent may use for a given task or identity.

Data egress controls

Inspect and constrain what information may leave trusted boundaries through tools, APIs, messages, or generated files.

Human approval gates

Require explicit review for high-impact actions such as payments, destructive changes, external communications, or secret access.

Secrets and PII safeguards

Detect sensitive values and apply masking, denial, substitution, or approval policies before tool execution.

Auditable decision traces

Record policy inputs, decisions, approvals, tool calls, and outcomes in a reviewable security trail.

Product architecture

A policy gateway between intent and action

Agent Guard is designed as a control point around an agent—not as another general-purpose chatbot. Policies should be testable, decisions explainable, and failures visible.

Testable policies Explainable decisions Visible failures
Designed for

Who Agent Guard is for

01

Agent platform teams

Add a consistent policy layer across internal agents, tools, and MCP integrations.

02

Security and governance

Review high-risk actions, data flows, exceptions, and policy coverage.

03

SaaS builders

Offer customer-facing agents with clear scopes, approvals, and auditability.

04

Automation teams

Protect workflows that touch email, finance, support systems, code, or production infrastructure.

Available on the Chrome Web Store

Install Agent Guard

Install Agent Guard from its official listing. Publication does not imply complete channel coverage, automatic compliance, or a guarantee against every Agent threat.

Add Agent Guard to Chrome

Add practical guardrails to supported AI Agent actions

Install Agent Guard from the official Chrome Web Store listing and review its permissions, privacy policy, and coverage limits before use.

Add Agent Guard to Chrome