Cursor AI
Governance
Cursor is the AI-native code editor that writes, edits, and executes code autonomously. Without governance, you're trusting an LLM with write access to your entire codebase and terminal. OnLeash adds the control layer Cursor doesn't have.
The Problem with Ungoverned Cursor
Cursor's Agent mode gives the AI full autonomy: it reads your codebase, writes files, runs terminal commands, and calls APIs. This is powerful but dangerous without oversight.
There is no built-in policy engine. No audit trail beyond chat history. No kill switch that halts all actions in progress. No PII detection. No cost controls. No compliance evidence.
OnLeash is the governance layer that sits between Cursor's agent and the systems it interacts with. Every action is evaluated against your policies before execution.
What OnLeash Governs in Cursor
Every action type. Specific risks. Deterministic governance.
File writes & edits
Uncontrolled code modification, secret injection, backdoor insertion
Policy rules restrict write targets by path pattern. Diff analysis flags suspicious changes. High-risk writes require approval.
Terminal commands
Arbitrary shell execution, data exfiltration, system compromise
Command allowlists with parameter validation. Dangerous commands blocked. Kill switch halts all execution.
API calls
Unauthorized external communication, data leakage, cost overruns
Endpoint allowlists. Request body inspection for PII. Token metering tracks cost per agent session.
MCP tool calls
Accessing tools beyond intended scope, privilege escalation
Tool enumeration maps available tools. Per-agent tool restrictions enforce least privilege. Unauthorized tool calls denied.
Multi-file operations
Large-scale unreviewed changes across codebase
Rate limiting caps actions per time window. Circuit breakers trip on anomalous action volume.
Quick Integration
Install the OnLeash MCP server
One command sets up the governance proxy in your project.
Add to your Cursor configuration
Register OnLeash as an MCP server in your editor settings.
Register your agent
Create an agent identity with a unique API key in the dashboard.
Set policies
Define rules in the OnLeash dashboard or via the API.
Govern
Every Cursor action now routes through the OnLeash governance pipeline.
Govern Your Cursor Agent Today
Free Developer tier. 5-minute integration via MCP server. No code changes required.
Start Governing Cursor