lmnr: Laminar - open-source observability platform purpose-built for AI agents. YC S24

by lmnr-ai · Agent Tool · ★ 3.5k

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How to install lmnr

git clone https://github.com/lmnr-ai/lmnr
pip install --upgrade 'lmnr[all]'

Taken from the project's README on GitHub. Check the security audit before running it.

Security audit verdict: SAFE · quality 67/100

Flagged: environment access. Scanned against 42 published rules built on the SlowMist agent-security taxonomy, refreshed every 8 hours. Full audit →

The quality score combines nine heuristic checks of the repo and its README: completeness, clarity, specificity, examples, structure, agent readiness, step-by-step content, instruction quality and security notes. It rates how well the project explains itself to an agent, not the code.

agent-observabilityagentsaiai-observabilityaiopsanalyticsdeveloper-toolsevalsevaluationllm-evaluation

Quick Facts

Stars3,477
Forks261
LanguageTypeScript
CategoryAgent Tool
LicenseApache-2.0
Quality Score67/100
Open Issues162
Last Updated2026-11-07
Created2024-08-29
Platformsnode
Est. Tokens~15k

About lmnr

Laminar Laminar is an open-source observability platform purpose-built for AI agents. [x] Tracing. Docs [x] OpenTelemetry-native powerful tracing SDK - 1 line of code to automatically trace Vercel AI SDK, Browser Use, Stagehand, LangChain, OpenAI, Anthropic, Gemini, and more. [x] Evals. Docs [x] Unopinionated, extensible SDK and CLI for running evals locally or in CI/CD pipeline.

Compatible Skills

These tools work well together with lmnr for enhanced workflows:

  • voltagent — semantic(0.38)+complementary+rare_topics+same_lang+similar_pop+shared_platform (68%)
  • promptfoo — semantic(0.18)+complementary+rare_topics+same_lang+similar_pop+shared_platform (65%)
  • langtrace — semantic(0.29)+complementary+rare_topics+same_lang+similar_pop+shared_platform (60%)
  • opik-openclaw — semantic(0.19)+complementary+rare_topics+same_lang+similar_pop+shared_platform (56%)
  • mission-control — semantic(0.18)+complementary+same_lang+similar_pop+shared_platform (56%)

lmnr alternative? Top 6 similar tools

Looking for a lmnr alternative? If you're comparing lmnr with other agent tool tools, these 6 projects are the closest alternatives on Agent Skills Hub — ranked by topic overlap, star count, and community traction.

  • voltagent by VoltAgent · ⭐ 10.9k

    AI Agent Engineering Platform built on an Open Source TypeScript AI Agent Framework

  • logfire by pydantic · ⭐ 4.5k

    AI observability platform for production LLM and agent systems.

  • phoenix by Arize-ai · ⭐ 12.2k

    AI Observability & Evaluation

  • mission-control by builderz-labs · ⭐ 6.4k

    Self-hosted control plane for AI agents: dispatch tasks, review runs, track spend, and operate OpenClaw, Claud

  • failproofai by FailproofAI · ⭐ 8.2k

    Observability and enforcement for AI agent harnesses. Capture every run and runtime reliability with policy en

  • klavis by Klavis-AI · ⭐ 5.8k

    [DEPRECATED] Legacy Klavis AI MCP integrations. See klavis.ai for RL environments and training data.

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How this security grade is produced

Grades come from a rule-based scan built on the SlowMist agent-security taxonomy: 42 published rules, covering credential harvesting, data exfiltration, curl | sh installers and more. It is a first-layer scan, not a manual audit — we say so rather than overstate it.

The scale of the problem is documented independently: Liu et al. (2026), in a study of 31,132 agent skills, report that 26.1% contain security vulnerabilities. Our own full-catalog census is published as a citable open dataset.

Sources & who's responsible:

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