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Dev tools · alternatives · 2026

24 alternatives to Agent Stack

5 tiny npm libs to stop AI agents misbehaving in prd

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    Scan AI agent Skills for risks before you install them

    16d ago · agentguard-sigma-five.vercel.app · its alternatives →

  2. 2

    A collection of open-source TypeScript tools by @enmanuelmag. heimdall-mcp for MCP proxy telemetry. agent-harness-kit for multi-agent orchestration.

    May 2026 · ahk.cardor.dev · its alternatives →

  3. 3

    Visual debugging, tracing, and replay for agent workflows

    Apr 2026 · agenticlens.in · its alternatives →

  4. 4

    See what breaks your AI agent and fix it automatically

    Jan 2026 · docs.futureagi.com · its alternatives →

  5. 5

    Stop AI agents from installing malicious packages.

    Jul 2026 · agentinel.habitwala.in · its alternatives →

  6. 6

    Your AI agent hits an infinite loop and racks up $2000 in API charges overnight. This happens weekly to AI developers. AgentGuard monitors API calls in real-time and automatically kills your process when it hits your budget limit. How it works: Add 2 lines to any AI project: const agentGuard = require('agent-guard'); await agentGuard.init({ limit: 50 }); // $50 budget // Your existing code runs unchanged const response = await openai.chat.completions.create({...}); // AgentGuard tracks costs automatically When your code hits $50 in API costs, AgentGuard stops…

    2025 · github.com · its alternatives →

  7. 7

    Tool-agnostic TypeScript library for observing coding agent sessions. Built-in Cursor provider, extensible to Claude Code, Codex, and OpenCode. - vtemian/agentprobe

    Mar 2026 · github.com · its alternatives →

  8. 8

    GitHub - https://github.com/vostride/agent-qa Live Demos - https://vostride.com/demo/agent-qa

    May 2026 · vostride.com · its alternatives →

  9. 9

    Agentpanel is an observability platform for optimizing the control flow, performance, token usage, and correctness of LLM/AI agents! Built-in @rustlang, the first release of Agent Panel currently features an AI gateway that provides seamless access to 100+ LLMs across 20+ platforms, including OpenAI GPT-4o, Gemini 1.5 Pro latest, AnthropicAI Claude 3.5, MistralAI, Cohere, Groq,Perplexity AI, and more.

    2024 · github.com · its alternatives →

  10. 10

    The page you were looking for doesn

    2025 · superglue.ai · its alternatives →

  11. 11

    Scans AI agent skills for malicious code

    Aug 2026 · github.com · its alternatives →

  12. 12

    Love OpenClaw? Now ship it to production. Built in Rust.

    Feb 2026 · github.com · its alternatives →

  13. 13

    The change-control gate for AI-agent pull requests

    Jul 2026 · github.com · its alternatives →

  14. 14

    Scans agent skill and rule files for poisoned instructions.

    Jun 2026 · github.com · its alternatives →

  15. 15

    Hi HN, Matvey, Ildar, Joey, and Dominik here. If you're building LLM agents that use tools, you're probably worried about prompt injection attacks that can hijack those tools. We were too, and found that solutions like prompt-based filtering or secondary "guard" LLMs can be unreliable. Our thesis is that agent security should be handled at the network level between the agent and the LLM, just like a traditional web application firewall. So we built Archestra Platform: an open-source gateway that acts as a secure proxy for your AI agents. It's designed to be a deterministic firewall against…

    2025 · archestra.ai · its alternatives →

  16. 16

    Reliable AI with zero hallucinations and memory

    Nov 2025 · its alternatives →

  17. 17
    ARGUS▲9

    Catch Silent Failures in your AI Agent Pipelines

    Jun 2026 · arguslabs.in · its alternatives →

  18. 18

    A disposable copy of your production stack for every pull request: masked Postgres, contained third-party APIs, and agents that use your app like people.

    Sep 2026 · antifailure.dev · its alternatives →

  19. 19

    Full observability for AI agents. Zero code changes.

    Apr 2026 · agentlens.techmatbd.com · its alternatives →

  20. 20

    Local security & compliance scanner for AI agents

    Jul 2026 · safeclaude.net · its alternatives →

  21. 21

    A practical guide to building safety layers for AI agents

    Aug 2026 · krishhna7.gumroad.com · its alternatives →

  22. 22

    The "Lie Detector" API for RAG & AI Agents

    Dec 2025 · agentaudit-dashboard.vercel.app · its alternatives →

  23. 23

    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…

    Apr 2026 · sigmashake.com · its alternatives →

  24. 24

    Architectural guardrails for coding with AI agents.

    Jul 2026 · archlint.pro · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →