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AI · April 20, 2026

AI Coding Agent Guardrails enforced at runtime

As a Security Engineer with over 10+ years in industry, I kept running into the same problem with coding agents: Instructions are not guarantees. I put guidance in `CLAUDE.md`, `AGENTS.md`, memory files, MCP descriptions, and tool documentation. I explicitly told the agent things like: - Use the code graph for architecture questions instead of grepping the repository. - Do not use deprecated APIs or Unsafe code. - Prefer specific tools for specific tasks. The agent would still ignore those instructions surprisingly often. It would grep the entire repo, use deprecated APIs, or choose a slower…

AI Coding Agent Guardrails enforced at runtime launched on April 20, 2026 with 5 votes, #1,846 of 21,248 launches that month and more than 75% of that year's launches.

Visit sigmashake.com ↗Alternativestop 9% of April 2026

What it does

SigmaShake is a sub-millisecond governance engine for AI agents. Enforce deterministic rules, prevent destructive commands, and audit tool calls. Check it out at https://sigmashake.com Free for 5000 tool evaluations per day. Pro subscription is 50% off for unlimited tool evaluations and more.

Generative AI agent guardrails mapped to MITRE ATLAS AML.M0020: deterministic ALLOW, DENY, ASK, FORCE at the tool-call boundary. Honest-agent. Not a sandbox.

SigmaShake (ssg) checks every AI agent tool call against your rules before it runs — so risky actions can be blocked or rewritten in milliseconds, without a sandbox. AI agents run shell commands, edit files, and call external APIs. That means they can cause real damage before you realise what happened. SSG is the seatbelt you put on first. An AI agent wiped a developer's entire project folder while "cleaning up temporary files." It matched a pattern it shouldn't have. There was no undo. An AI assistant ran up a $400 cloud bill overnight by repeatedly calling a paid API while trying to "retry on error." Nobody noticed until the invoice arrived. An AI sent emails to a customer list without…from sigmashake.com

In the maker’s words, at launch

Hello, looking for some users interested using a devtool that allows developers to centrally manage AI Coding Agent tools that supports all AI Coding Agent tools like Claude Code, Codex, Antigravity, etc. Try it free! https://www.producthunt.com/products/sigma-shake-governance-...

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