# curtail.com > AI-optimized mirror of curtail.com containing 25 pages totalling 9,273 words of clean markdown content, structured data, and semantic HTML. Original source: https://curtail.com/. Last updated: 2026-06-15T05:39:59.195Z. Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG). ## Homepage - [Guardrails for AI-Generated Code and AI-Driven Refactoring](/content/site-root.html): Curtail ReGrade® uses comparison-based live traffic analysis to find bugs in AI-generated code before they reach production. (481 words) ## Articles & Blog Posts - [blog/regrade-3-every-merge-request-gets-a-behavioral-audit-automatically.html](/content/blog/regrade-3-every-merge-request-gets-a-behavioral-audit-automatically.html) (1 words) - [blog/regrade-3-the-self-healing-loop-for-ai-generated-code.html](/content/blog/regrade-3-the-self-healing-loop-for-ai-generated-code.html) (1 words) - [blog/catch-ai-generated-code-regressions-before-ship/index.html](/content/blog/catch-ai-generated-code-regressions-before-ship/index.html) (1 words) - [Catch the bugs your tests can't see.](/content/research/index.html): Pre-specified study: ReGrade catches +4 to +13 extra bugs per trial across 17 LLMs from 6 AI providers. 1,400+ trials, 300,000-line Python codebase. (780 words) - [The Scale of the Problem](/content/blog/regrade-3-refactor-with-confidence-ai-powered-migration-without-behavioral-risk.html): Technical debt consumes 42% of developer time and costs the US $1.52 trillion. Memory safety bugs account for 70% of CVEs at Microsoft and Google, driving government mandates to migrate to languages like Rust. AI can accelerate the rewrite — but how do you prove the refactored code behaves identically? ReGrade 3 provides deterministic behavioral verification, field by field. (1,698 words) - [News](/content/blog/index.html): Latest news and insights from the Curtail team. (593 words) - [How ReGrade Works](/content/blog/regrade-3-deterministic-guardrails-for-ai-generated-code.html): AI coding tools have created a validation gap — code ships faster, but bugs ship faster too. ReGrade 3 provides deterministic behavioral comparison at every stage of the development lifecycle: before, during, and after the merge request. (1,028 words) - [The Blind Spot Behind the UI](/content/blog/playwright-mcp-gave-ai-eyes-for-the-browser-regrade-does-the-same-for-your-network.html): Playwright MCP transformed UI testing by giving AI agents structured access to browser state. ReGrade applies the same principle to network behavior — catching API regressions, missing headers, and subtle behavioral changes at the field level, with no test scripts to write. (907 words) - [Privacy Policy](/content/privacy/index.html): How Curtail collects, uses, and protects your personal information. (548 words) - [We ran 22 standard API tests against a widely-used open-source collaboration platform.](/content/blog/how-we-found-a-7-year-old-vulnerability-on-the-first-replay.html): A widely-used collaboration platform shipped a password hash disclosure bug for 7 years. Standard tests passed every day. ReGrade caught it on the first replay — without knowing it existed. (474 words) - [ReGrade®](/content/products/regrade/index.html): Field-level analysis that catches regressions in API behavior by comparing real traffic across software versions. (292 words) - [About Curtail](/content/about/index.html): Curtail keeps businesses running by using live traffic analysis to identify defects before software goes live, and detect and isolate security threats before they impact systems. (282 words) - [A recent deep-dive by [Eric Glover at Applied Ingenuity](https://appliedingenuity.substack.com/p/the-llm-as-analyst-trap-a-technical) explored what happens when you build an agentic system that lets an LLM fetch and analyze financial data. The findings are a cautionary tale for anyone deploying AI agents in production.](/content/blog/the-hidden-risks-of-agentic-ai-systems-and-why-verification-matters.html): Agentic AI systems that let LLMs fetch and analyze data look powerful on the surface. But a growing body of research reveals dangerous failure modes — from silent hallucinations to context window degradation — that make verification essential. (377 words) - [Terms of Service](/content/terms/index.html): Terms and conditions for using the Curtail website and services. (470 words) - [AI Agentic Coding & ReGrade MCP](/content/products/regrade/agentic-coding/index.html): ReGrade works in-the-loop with your AI coding agent, automatically replaying real traffic against new code and feeding results back so the LLM converges faster. (236 words) - [ReCover™](/content/products/recover/index.html): ReCover is Curtail's production counterpart to ReGrade. While ReGrade uses NCAST to catch behavioral regressions before deployment, ReCover applies the same technology to live production traffic — monitoring in real time, detecting anomalies, and diverting attacker sessions to honeypots. Together, they form a complete behavioral security lifecycle from development through production. Currently in development. (250 words) - [LLMs - Strengths and Weaknesses](/content/blog/llms-strengths-and-weaknesses/index.html): We keep treating LLMs like reasoning machines — and then act surprised when they confidently get math, logic, or proofs wrong. CTO Robert Ross digs into the limits that rarely make it into the headlines. (117 words) - [Building Reliable AI Agent-Driven Software Development Processes](/content/blog/best-practices-agentic-coding-workflow/index.html): CTO Robert Ross explores how to create reliable AI agent-driven development processes with tooling, checkpoints, and feedback loops. (51 words) - [Automatic Merge Request Analysis](/content/products/regrade/merge-request/index.html): ReGrade replays recorded production traffic against every merge request, automatically surfacing behavioral and performance differences before code reaches production. (243 words) - [Curtail CEO Frank Huerta Joins The Embedded Frontier Podcast](/content/blog/risks-zero-day-attacks-open-source/index.html): CEO Frank Huerta discusses open source security vulnerabilities on The Embedded Frontier Podcast. (54 words) - [Accessibility Statement](/content/accessibility/index.html): Our commitment to making curtail.com accessible to everyone. (162 words) - [LLM Language Refactoring & ReGrade](/content/products/regrade/refactoring/index.html): When LLMs transform code between languages — C to Python and back — ReGrade uses field-level comparison to verify that every version behaves identically, so you can migrate to memory-safe languages with confidence. (200 words) - [Contact Us](/content/contact/index.html): Get in touch with the Curtail team to learn about ReGrade® and ReCover™. (26 words) - [sitemap-xml.html](/content/sitemap-xml.html) (1 words) ## Resources - [Full Page Index](/index.html): Browse all cached pages with rich metadata - [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines - [XML Sitemap](/sitemap.xml): Machine-readable sitemap for crawler discovery - [Robots.txt](/robots.txt): Crawler directives