Introduction
SteerPlane is a runtime control plane for autonomous AI agents — it stops bad runs, it doesn't just watch them.
SteerPlane is a runtime control plane for autonomous AI agents. Observability tells you your agent failed — SteerPlane stops it before it does. It sits directly in the execution path and enforces cost ceilings, deterministic loop termination, hierarchical policies, and human-in-the-loop approvals — with one line of code and zero LLM-judge latency.
SteerPlane is Patent Pending — Indian Patent Application IN 202641071111 A1 (System and Method for Runtime Monitoring and Controlled Execution of Autonomous AI Agents).
Why SteerPlane
Autonomous agents call APIs, run code, and make real-world decisions. Without guardrails, a single misconfigured agent can:
- 🔄 spin into an infinite loop,
- 💸 burn thousands of dollars in API credits overnight, or
- 💀 take a destructive action — with zero ability to intervene.
Observability platforms can report these after the fact. SteerPlane is built to intervene in real time.
Core capabilities
Loop Termination
Deterministic O(W²) sliding-window detection of repeating action patterns — sub-millisecond, no LLM judge.
Cost Circuit-Breaker
Per-session USD ceilings across 25+ models, with mid-stream termination bounded to a single step of overshoot.
Policy Engine
Hierarchical deny → allow → rate-limit → approval evaluation with glob-pattern matching.
Kill / Alert Enforcement
Terminate instantly, or pause for human approval and resume with extended limits.
Zero-Code Gateway
An OpenAI-compatible proxy — change only the base URL. Provider keys never touch the agent.
Framework Integrations
LangChain, CrewAI, AutoGen, and the OpenAI Agents SDK — with your agent code unchanged.
Two ways to integrate
- SDK decorator — wrap a function with
@guard(...)for deep, in-process control. - Gateway proxy — point your OpenAI client at the SteerPlane gateway for zero-code enforcement.
Both routes feed the same guardrail pipeline: loop detection, cost tracking, policy evaluation, and approval workflows.