Alternatives

Products that do what Agent Stack does

5 tiny npm libs to stop AI agents misbehaving in prd

1
Fabraix▲196
Find gaps in your AI agents before users do
May 2026 · fabraix.com
2
AgenticLens▲64
Visual debugging, tracing, and replay for agent workflows
Apr 2026 · agenticlens.in
3
Fix My Agent (FMA)▲50
See what breaks your AI agent and fix it automatically
Jan 2026
4
Agentinel▲18
Stop AI agents from installing malicious packages.
Jul 2026 · agentinel.habitwala.in
5
AgentGrid▲77
Your AI agents team, terminals, notes: one infinite canvas
Jul 2026 · agentgrid.sh
6AA
AgentGuard – Auto-kill AI agents before they burn through your budget▲47
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
7
diplomat-agent▲3
Find unguarded tool calls in your AI agent code
Apr 2026 · github.com
8
Multiplayer Debugging Agent▲10
Connect your coding agent to prod and fix bugs automatically
May 2026 · multiplayer.app
9OS
Open-Source Agentic QA Harness with Memory▲18
GitHub - https://github.com/vostride/agent-qa Live Demos - https://vostride.com/demo/agent-qa
May 2026 · vostride.com
10AU
Agentpanel – Universal LLM API Written in Rust▲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
11
Fortress▲8
The stealth browser engine for scrapers and AI agents
Jul 2026 · github.com
12
SkillGuard▲2
Scans AI agent skills for malicious code
10d ago · github.com
13
systemprompt - AI Agent Infrastructure▲11
Love OpenClaw? Now ship it to production. Built in Rust.
Feb 2026
14
MergeWarden▲5
The change-control gate for AI-agent pull requests
Jul 2026 · github.com
15
agentfrisk▲4
Scans agent skill and rule files for poisoned instructions.
Jun 2026 · github.com
16OS
Open-Source Gateway to Stop Tool-Abusing Prompt Injections▲9
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…
Oct 2025 · archestra.ai
17AS
AgentNest, self-hosted sandboxes for AI agents▲12
Jul 2026 · github.com
18
ARGUS▲9
Catch Silent Failures in your AI Agent Pipelines
Jun 2026 · arguslabs.in
19
AgentLens▲3
Full observability for AI agents. Zero code changes.
Apr 2026 · agentlens.techmatbd.com
20
Agent Guard▲4
Local security & compliance scanner for AI agents
Jul 2026 · safeclaude.net
21
Agent-101-safety-layer▲1
A practical guide to building safety layers for AI agents
21d ago · krishhna7.gumroad.com
22
Archlint▲3
Architectural guardrails for coding with AI agents.
Jul 2026 · archlint.pro
23
AgentRisk▲5
Scan untrusted AI-agent repos before your agent runs them
Jul 2026 · github.com
24
Sidewisp▲9
Dont let your agent run wild
Jul 2026 · sidewisp.com

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