kaizen-security 0.1.5

Pluggable enforcement for AI agent actions. Inspect every tool call and block known-bad.

Kaizen Security

Runtime security for the AI agents you build. Attach Kaizen to your agent and it inspects every action, a tool call, a connection, a file or data access, and blocks what falls outside the agent's normal behavior. In your environment, as it happens.

Docs: docs.getkaizen.io · Console: app.getkaizen.io · Source: github.com/getkaizen/kaizen-security

Install

pip install kaizen-security

The core is dependency-free and stdlib-only.

Quickstart

from kaizen_security import Kaizen

kz = Kaizen(api_key="kz_live_...", agent="support-bot")

verdict = kz.inspect(tool="export_file", publisher="external", target="45.9.148.108")
if verdict.blocked:
    raise RuntimeError(verdict.reason)

Create a key in the console under API keys. Without a key the client still enforces any policies you pass locally.

Attach to your framework

One line, any stack. Each adapter inspects every tool call; a blocked call returns a refusal instead of running.

OpenAI Agents

from kaizen_security.integrations.openai_agents import KaizenHooks
await Runner.run(agent, "...", hooks=KaizenHooks(kz, enforce=True))

LangChain

from kaizen_security.integrations.langchain import guard_tool
tools = [guard_tool(kz, t) for t in tools]

CrewAI

from kaizen_security.integrations.crewai import guard_tool
safe = guard_tool(kz, my_tool)

Semantic Kernel

from kaizen_security.integrations.semantic_kernel import kaizen_filter
kernel.add_filter("function_invocation", kaizen_filter(kz))

LlamaIndex

from kaizen_security.integrations.llamaindex import guard_tool
safe = guard_tool(kz, my_tool)

Pydantic AI

from kaizen_security.integrations.pydantic_ai import guard

@agent.tool_plain
@guard(kz)
def lookup(q: str) -> str:
    ...

MCP — run kaizen-mcp as a shim in front of any MCP server.

How it works

A fast local check blocks known-bad before it runs. An isolated Observer learns each agent's behavior and flags real deviations, in your own environment. See the architecture.

There is a TypeScript SDK too: npm install kaizen-security.

License

Apache-2.0