Without ARC XT
- Issues surface late in PRs or CI
- AI-generated risk hides inside normal developer flow
- Security and architecture decisions stay implicit
Public beta live
Visual Studio Marketplace
Open VSX
ARC ecosystem · flagship product
ARC XT brings governed, audit-ready AI development into your editor.
ARC is the umbrella platform for governed AI development. ARC XT is the first live product: a local-first VS Code extension that makes risky changes visible, enforces proof-backed workflows, and keeps decisions audit-ready.
Local-first by default · cloud disabled by default · built for AI-assisted development
Why ARC XT
AI-assisted development is fast. Governance usually arrives too late.
ARC XT moves review and visibility closer to the moment decisions are made—inside the editor, on save, before the risk reaches pull requests, CI, or production.
With ARC XT
- Risky saves become visible in real time
- Decisions are explained, not hidden behind a black box
- Higher-risk changes can require proof before they proceed
What ARC XT does
Bring governed workflows directly into the coding loop.
Detect risk on save
ARC XT applies local-first, rule-backed evaluation as code changes are written and saved.
Explain every decision
Review surfaces show what triggered a decision, why it matters, and what to do next.
Keep the audit trail live
Decisions are retained with append-only logging and visible review surfaces for teams that need accountability.
How it works
ARC XT stays in the developer flow without acting like a coding assistant.
Write or generate code
Use your normal workflow—manual coding, Copilot, Cursor, or local AI tooling.
Save and evaluate locally
ARC XT evaluates the change in-editor and applies local-first governance logic at save time.
See the decision and next step
Low-risk work stays lightweight. Riskier changes can warn, require proof, or block until addressed.
Trust and security
Designed for high-trust engineering teams, without overclaiming autonomy.
ARC XT improves security posture through visibility, fail-closed defaults, and proof-backed handling for higher-risk work. It is a governance layer—not a guarantee of secure code.
Local-first by default
No cloud dependency is required for the default workflow.
Cloud disabled by default
Cloud options remain off unless explicitly configured and approved.
Fail-closed posture
Missing or invalid configuration falls back to the strictest safe mode.
Append-only audit trail
Decisions remain reviewable with traceable, audit-oriented visibility.
Proof-backed handling
Higher-risk work can require a linked plan or directive before save proceeds.
Visible decisions
Review Home, Decision Feed, Audit Timeline, and Why Panel make decisions legible.
Who it’s for
Built for teams that want guardrails without hiding the engineering tradeoffs.
Developers using AI coding tools
Teams that need audit or compliance readiness
Solo builders who want guardrails without heavyweight process
Live beta install
ARC XT is available now on both major extension registries.
Visual Studio Marketplace is the recommended path for standard VS Code users. Open VSX is available for Open VSX-compatible editors such as VSCodium and Theia.
Install from VS Marketplace
Recommended for standard VS Code users and the default beta install path.
Open VS MarketplaceInstall from Open VSX
Use this option for Open VSX-compatible editors such as VSCodium and Theia.
Open Open VSX