Portcullis

Governance and guardrails for AI-Assisted Development

The Challenge

AI coding assistants are powerful, but they work from a snapshot of your code. They don't know what your team knows:

• Which files are stable vs. frequently changing
• What downstream code depends on a given function
• Why certain patterns exist in your architecture
• Which changes have caused problems before

The result: AI-generated code that looks correct but creates production issues when it conflicts with patterns your team has already learned the hard way.

What Portcullis Provides

Portcullis adds a layer of codebase governance to your AI workflow. When you're about to make changes, it provides:

Risk Assessment

Evaluates proposed changes and flags potential concerns before code is written.

Impact Visibility

Shows what other parts of the codebase may be affected by a change.

Contextual Guidance

Surfaces relevant background that helps your AI make better decisions.

Getting Started

Portcullis is available in both the VS Code and Cursor extension marketplaces.

1. Open the Extensions panel (Ctrl/Cmd + Shift + X)
2. Search for "Portcullis"
3. Click Install
4. Initial setup runs automatically when you open a project

The Developer Experience

Portcullis integrates directly with your AI assistant. When you request changes:

• You'll see a risk indicator (low / medium / high / critical) with rationale
• For elevated risks, you'll get alternative approaches to consider
• You can proceed with any change—Portcullis advises, it doesn't block
• Overrides require rationale, creating accountability without friction

When It Helps Most

What to Expect

• Advisory model — You stay in control; Portcullis provides recommendations
• Local processing — Analysis happens on your machine; your code stays private
• Quick setup — Initial indexing takes a few minutes; subsequent sessions start instantly

Support

Questions? Reach out at help@portcullisai.com

License

Copyright (c) 2026 Portcullis AI Inc. All Rights Reserved.