← Use cases · Coding agents & IDE assistants
AI agent tools for guardrails
Short answer: Our top pick for guardrails: bifrost, with the highest AgentPick Score (82/100) among tools tagged "guardrails". Runners-up: future-agi (74) and failproofai (71). Compare what each does, its license and how recently it was updated below.
| # | Tool | What it does | Score | Stars | License | Updated |
|---|---|---|---|---|---|---|
| #1 | bifrost | Open-source, high-performance AI gateway that works as your LLM gateway, MCP gateway and agent gateway. One OpenAI-compatible API for 10,000+ models, … | 82/100 | ★ 8.8k | Apache-2.0 | 14 Oct 2026 |
| #2 | future-agi | Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Ga… | 74/100 | ★ 2.1k | Apache-2.0 | 14 Oct 2026 |
| #3 | failproofai | Observability and enforcement for AI agent harnesses. Capture every run and runtime reliability with policy enforcement. | 71/100 | ★ 5.4k | See repo | 14 Oct 2026 |
| #4 | stop-that-shit | Stop That Shit（别再造史了）｜面向 Codex/GPT 场景的多平台 Hook + Skill Guard：拦截 AI coding agent 无需求的哈希、校验和与任务范围膨胀。 A multi-platform Hook + Skill Guard for AI coding a… | 70/100 | ★ 2.6k | MIT | 14 Oct 2026 |
| #5 | cuga-agent | CUGA is an open-source generalist agent harness for the enterprise, supporting complex task execution on web and APIs, OpenAPI/MCP integrations, compo… | 70/100 | ★ 899 | Apache-2.0 | 14 Oct 2026 |
| #6 | chainloop | Agentic SDLC infrastructure. Define guardrails. Collect signals. Enforce continuously. Signed records of what your AI coding agents and CI/CD pipeline… | 68/100 | ★ 585 | Apache-2.0 | 14 Oct 2026 |
| #7 | agentos | TypeScript AI agent framework: cognitive memory, runtime tool forging, multi-agent orchestration, 11 LLM providers. | 66/100 | ★ 678 | Apache-2.0 | 15 Oct 2026 |
| #8 | harness-score | Your AI coding agent is only as reliable as the harness around it. Measure that harness in seconds with harness-score. | 65/100 | ★ 551 | MIT | 14 Oct 2026 |
| #9 | opencode-swarm | Architect-centric agentic swarm plugin for OpenCode. Hub-and-spoke orchestration with SME consultation, code generation, and QA review. | 64/100 | ★ 501 | MIT | 14 Oct 2026 |
| #10 | Sponsio | Deterministic safety solutions for probabilistic AI agents | 64/100 | ★ 454 | Apache-2.0 | 14 Oct 2026 |
| #11 | CoWork-OS | Local-first personal agentic OS and everything app for coding, knowledge work, web design, automations, and artifacts. | 62/100 | ★ 485 | MIT | 14 Oct 2026 |
Source: each project's public GitHub repository (description, stars, license, last push). Listed tools aren't tested or ranked by AgentPick.
How to choose
- Check which models and providers it supports.
- Prefer tools that show diffs and ask before running commands.
- Look for recent commits: coding agents change fast.
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