LLM observability: tools for developers

Monitoring, traces, evaluation and quality tracking for LLM applications. An entry can appear under several use cases when its topics or description provide several explicit signals.

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74 entries in this view.

Tool ranking

Ranked by normalized popularity across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.

  1. 1

    Agent
    Active

    The Operating System for Scalable Enterprise AI Agents - Run, orchestrate, and deploy Compliant Enterprise AI Agents at scale across frameworks, without lock-in, rewrites or fragile glue code. Native support for MCP, A2A. Interface with all…

    githubmeasured growthOpen source ↗

    156GitHub stars+19 (+13.9 %)
  2. 2

    Skill
    Active

    Research-backed, eval-driven skills for AI agents

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/ZSeven-W/craft-skills ~/.claude/skills/craft-skills

    142GitHub stars+18 (+14.5 %)
  3. 3

    Other
    Active

    Evidence-first infrastructure for reproducible, isolated executable evaluation and online rewards.

    githubmeasured growthOpen source ↗

    140GitHub stars+24 (+20.7 %)
  4. 4
    Active

    🐙 ADLC Team Skills — Agentic SDLC for Engineering Teams

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/tikalk/adlc-team-skills ~/.claude/skills/adlc-team-skills

    132GitHub stars+1 (+0.76 %)
  5. 5
    Active

    Skills, prompts, and instructions for building AI agents on top of Dynatrace production context

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/Dynatrace/dynatrace-for-ai ~/.claude/skills/dynatrace-for-ai

    132GitHub stars+4 (+3.1 %)
  6. 6
    Active

    74 open-source Agent Skills for Claude Code and Codex: AI SEO, AEO and GEO, code review with an A-F ship grade, CI gates, AI evals, design systems, conversion copy, Instagram growth, iOS and Android app shipping, creator rights, and…

    githubmeasured growthOpen source ↗

    129GitHub stars-4 (-3.0 %)
  7. 7
    Active

    A Model Context Protocol (MCP) server for Langfuse, enabling AI agents to query Langfuse trace data for enhanced debugging and observability

    githubmeasured growthOpen source ↗

    105GitHub starsstable
  8. 8
    Active

    Self improving agents through iterations

    githubmeasured growthOpen source ↗

    105GitHub stars+1 (+0.96 %)
  9. 9
    Active

    Vendor-neutral OpenTelemetry skills for AI coding agents, grounded in upstream sources

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/ollygarden/opentelemetry-agent-skills ~/.claude/skills/opentelemetry-agent-skills

    97GitHub stars+4 (+4.3 %)
  10. 10

    Skill
    Active

    local-first analytics for AI agent skills

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/crafter-station/skill-kit ~/.claude/skills/skill-kit

    77GitHub stars+1 (+1.3 %)
  11. 11
    Active

    Agent Skill evaluation harness for paired variants, trace artifacts, and runner adapters

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/adewale/skill-eval-harness ~/.claude/skills/skill-eval-harness

    73GitHub stars+4 (+5.8 %)
  12. 12
    Active

    AgentX python SDK. Build multi-agent AI workforce. Run evaluation. Trace your agent. Full Observability.

    githubmeasured growthOpen source ↗

    68GitHub starsstable
  13. 13

    Skill
    Active

    Deletion-first Agent Skill for removing test bloat, verification theater, and speculative fallbacks while preserving behavior.

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/MrZoyo/deslop-GPT ~/.claude/skills/deslop-GPT

    55GitHub stars+27 (+96.4 %)
  14. 14
    Active

    Open benchmark for Claude Code SEO skills — real headless execution against fixture sites with planted-defect answer keys. Deterministic scoring, pre-registered rubric.

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/aleclindz/seo-skill-bench ~/.claude/skills/seo-skill-bench

    51GitHub stars-5 (-8.9 %)
  15. 15

    MCP
    Active

    Open-source, self-hosted control plane for OpenClaw and Hermes AI-agent fleets on Docker/Kubernetes — REST, CLI, and MCP.

    githubmeasured growthOpen source ↗

    50GitHub stars+2 (+4.2 %)
  16. 16

    Skill
    Active

    Agent skills for Arize — datasets, experiments, and traces via the ax CLI

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/Arize-ai/arize-skills ~/.claude/skills/arize-skills

    47GitHub starsstable
  17. 17
    Active

    Optimize any AI agent’s skills, tools/MCP, and prompts against your own evals.

    githubmeasured growthOpen source ↗

    47GitHub stars+1 (+2.2 %)
  18. 18
    Active

    Mini Program Engineering Skill Suite is an Agent Skill suite for evidence‑first mini‑program development. It helps agents bring WeChat or other mini‑program projects from vague intent to reliable engineering work: project intake, product…

    githubestimated momentumOpen source ↗

    Install git clone https://github.com/NocodeMrLi/mini-program-engineering-skill-suite ~/.claude/skills/mini-program-engineering-skill-suite

    39GitHub stars
  19. 19

    Skill
    Active

    Real-time execution trace and cost intelligence for Claude Code

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add DeibyGS/claudestat

    34GitHub stars+1 (+3.0 %)
  20. 20
    Active

    Deterministic, local-only audit reports for Claude Code AI agent sessions. Rust + SQLite. Zero network calls. MCP server for agents.

    githubmeasured growthOpen source ↗

    22GitHub stars+2 (+10.0 %)
  21. 21

    Other
    Active

    AI-detector auditing toolkit: measures how often a detector flags genuine human writing, how stable its verdict is across seeds, and whether that verdict survives meaning-preserving edits. Detector-in-the-loop measurement harness. Claude…

    githubmeasured growthOpen source ↗

    18GitHub starsstable
  22. 22

    Skill
    Active

    Measure prompt and skill improvements with blind A/B comparison.

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add shinpr/rashomon

    18GitHub starsstable

Learning resources

Ranked by normalized popularity across sources. These resources remain available separately and do not take part in the main tool ranking.

  1. 1
    ActiveOpen source ↗

    Curated + scored map of official MCP servers and agents for DevOps, Cloud, SRE, and Platform Engineering — every entry rated on production access, approval gates, and audit evidence.

    githubResourcemeasured growth
    77GitHub starsstable
  2. 2
    ActiveOpen source ↗

    50+ curated LLM observability tools PLUS 26 Agent Skills (several with runnable, unit-tested scripts) to build, evaluate, debug, secure & monitor reliable LLM apps. Tracing, evals, guardrails, LLMOps.

    github

    Install git clone https://github.com/ContextJet-ai/awesome-llm-observability ~/.claude/skills/awesome-llm-observability

    Resourcemeasured growth
    32GitHub stars+2 (+6.7 %)
  3. 3
    ActiveOpen source ↗

    My complete journey to becoming an Agentic AI Engineer through structured learning, projects, experiments, and production-ready implementations of modern AI systems.

    githubResourcemeasured growth
    18GitHub starsstable