Meet Arnie: Your AI Code Protector

AI coding assistants now write a huge share of modern code; already close to a third at leading tech companies, with projections that AI will soon generate nearly all new code.

This is great for speed, but it creates a dangerous gap: AI-generated code is risky by default. Trained on vulnerable open-source repositories, these models often produce insecure code, backdoors, and misconfigurations.

Security teams have been challenged with keeping up with the development pace before AI coding assistants and agents, and now it is amplified. While developers accelerate, AppSec teams drown in reviews that cause delivery delays, and chase their own tails with remediation backlogs. The result is vulnerabilities slipping through, and businesses are left exposed.

That’s why we built Arnie, the industry’s first AI code protector. Arnie is Arnica’s agentic software development security suite; a first-of-its-kind protector that prevents and detects vulnerabilities across the entire lifecycle of AI-driven code.

Who is Arnie?

As Arnica’s agentic software development security suite, Arnie's mission is simple: to make your AppSec team more productive and to protect your code.

Arnie combines guardrails at code generation with real-time analysis across the development lifecycle, ensuring AI-assisted code is both created and validated against your organization’s security standards. He’s not a single checkpoint, he’s a guardrail at every step:

• In the coding assistant and agent (rules injected at generation)
• On push (real-time scanning of code changes within commits before pull\merge requests are created, when iterating on the feature development)
• On pull/merge request (code review before merge)
• Backlog conditions (retroactive scans of existing repos and actionability based on granular conditions such as vulnerability exceeding SLA)

He embeds secure coding rules directly into the workflows developers already use with GitHub Copilot, Cursor, Claude, andGemini, then continuously analyzes changes in real-time and backlog to catch issues others miss. Developers stay fast, security scales effortlessly, andAppSec teams keep pace.

 Why Arnie Matters

AI-generated code is risky by default, often introducing flaws and misconfigurations. Traditional reviews slow developers down, forcing re-prompts and retesting, while AppSec teams drown in alerts and endless backlogs. Opt-in tools like IDE plugins and MCP clients fail to scale across large organizations, leaving gaps in security coverage.

Arnie changes the game by enforcing version-controlled coding rules across every repository and branch, with real-time analysis that scales effortlessly. It not only secures new code at the point of creation but also reviews your backlog, assigning issues to real owners so nothing slips through the cracks. With Arnie, security becomes proactive, seamless, and built for the agentic era of development.

What’s Next for Arnie?

Arnie is your companion for securing the agentic era of coding. Built to govern and secure AI-driven coding, Arnie brings together multiple capabilities under one identity, including AI SAST and Agentic Rules Enforcement.

By unifying these features, Arnie acts as a governor across the development lifecycle, ensuring that every line of AI-assisted or agentic code is generated and reviewed with security in mind. Two upcoming releases will showcase the power of Arnie’s capabilities:

⛶ Arnie AI SAST: Smarter Code Security at the Source – Now in Closed Preview

Traditional static analysis is rule-based and brittle. It misses emerging risks and floods teams with false positives. Arnie AI SAST combines deterministic rules with multi-agent AI to understand context, catch complex issues like backdoors or access control flaws, and even suggest secure fixes.

Unlike other AI code reviewers that only comment on pull\merge requests, Arnie scans every push, every backlog, and integrates directly into developer workflows. The result is faster remediation, fewer false positives, and security that keeps pace with AI-driven development.

💪 Arnie Agentic Rules Enforcement: Real-Time Guardrails – Coming Soon

Arnie automatically injects secure coding instructions into every repository, whether it is .github/copilot-instructions.md, .cursor/rules, CLAUDE.md, or .GEMINI.md. This guarantees that AI agents generate code securely by default, aligned with OWASP ASVS and corporate standards.

With rules applied during code generation, vulnerabilities are prevented upfront. Developers move fast without rework, AppSec teams reduce friction and backlog, and enterprises gain consistent, auditable control across the entire codebase.

Hasta la Vista, Vulnerabilities

Arnie is not just another scanner. He is a protector, built to safeguard your code at the moment that it’s written. By combining real-time enforcement with intelligent analysis, Arnie helps organizations embrace AI-driven development without sacrificing security.

Arnie doesn’t just catch mistakes. He prevents them.

Join the waitlist today to be one of the first to gain access to Arnie, or schedule time with our team to talk about what Arnica can bring to your AppSec program.