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 measured growth, normalized 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

    Skill
    Active

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

    PythonLicense: MIT
    • agent-skills
    • evals
    • python
    • skills

    githubmeasured growthOpen source ↗

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

    73GitHub stars+4 (+5.8 %)
  2. 2

    Skill
    Active

    🪢 Langfuse documentation -- Langfuse is the open source LLM Engineering Platform. Observability, evals, prompt management, playground and metrics to debug and improve LLM apps

    MDXLicense: MIT
    • agent-skills
    • agents
    • genai
    • hacktoberfest
    • langfuse

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/langfuse/langfuse-docs ~/.claude/skills/langfuse-docs

    239GitHub stars+3 (+1.3 %)
  3. 3

    MCP
    Active

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

    TypeScriptLicense: Apache-2.0
    • agent-management
    • agent-ops
    • agent-orchestration
    • ai-agent-platform
    • ai-agents

    githubmeasured growthOpen source ↗

    50GitHub stars+2 (+4.2 %)
  4. 4

    MCP
    Active

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

    HTMLLicense: MIT
    • agent-monitoring
    • agentic-ai
    • ai-agents
    • ai-engineering
    • audit

    githubmeasured growthOpen source ↗

    22GitHub stars+2 (+10.0 %)
  5. 5

    Skill
    Active

    Dashboard for monitoring claude code sessions.

    PythonLicense: Apache-2.0
    • agents
    • agentskills
    • claude-code
    • claude-code-plugin
    • claude-code-skills

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add JayantDevkar/claude-code-karma

    323GitHub stars+2 (+0.62 %)
  6. 6

    Other
    Active

    Open-source observability tool that uses AI agents to self-heal your software

    TypeScriptLicense: Apache-2.0
    • ai
    • llm
    • memory
    • observability
    • opentelemetry

    githubmeasured growthOpen source ↗

    1 404GitHub stars+2 (+0.14 %)
  7. 7

    Other
    Active

    AI SRE AgenticOps for Kubernetes and cloud infrastructure.

    Python
    • agenticops
    • ai
    • aiops
    • aisre
    • cloud

    githubmeasured growthOpen source ↗

    782GitHub stars+1 (+0.13 %)
  8. 8

    Skill
    Active

    Production patterns for agent orchestrators, harnesses, evals, MCP/A2A interoperability, memory, provider routing, and LLM usage metering.

    PythonLicense: MIT
    • a2a
    • agent-orchestration
    • agent-skills
    • ai-agents
    • developer-tools

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/ssheleg/agent-stack ~/.claude/skills/agent-stack

    2GitHub stars+1 (+100.0 %)
  9. 9

    Skill
    Active

    🐙 ADLC Team Skills — Agentic SDLC for Engineering Teams

    ShellLicense: MIT
    • adr
    • agent-skills
    • agentic-sdlc
    • ai-coding
    • developer-tools

    githubmeasured growthOpen source ↗

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

    132GitHub stars+1 (+0.76 %)
  10. 10

    MCP
    Active

    Self improving agents through iterations

    PythonLicense: Apache-2.0
    • agent-learning
    • agent-memory
    • agentic-workflows
    • ai-agents
    • claude-code

    githubmeasured growthOpen source ↗

    105GitHub stars+1 (+0.96 %)
  11. 11

    Skill
    Active

    local-first analytics for AI agent skills

    TypeScript
    • agent-skills
    • analytics
    • bun
    • claude-code
    • cli

    githubmeasured growthOpen source ↗

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

    77GitHub stars+1 (+1.3 %)
  12. 12

    Skill
    Active

    Real-time execution trace and cost intelligence for Claude Code

    TypeScriptLicense: MIT
    • agentic-workflow
    • ai-productivity
    • anthropic
    • anthropic-claude
    • claude

    githubmeasured growthOpen source ↗

    Install /plugin marketplace add DeibyGS/claudestat

    34GitHub stars+1 (+3.0 %)
  13. 13

    Other
    Active

    A command-line tool to scaffold and manage enterprise-ready AI Agents powered by the A2A (Agent-to-Agent) protocol

    GoLicense: Apache-2.0
    • a2a
    • agents
    • ai
    • containerized
    • docker

    githubmeasured growthOpen source ↗

    14GitHub stars+1 (+7.7 %)
  14. 14

    Agent
    Active

    Amazon Bedrock AgentCore enterprise platform accelerator with AWS CDK, Terraform organization guardrails, MCP/A2A agents, security, memory, and observability.

    PythonLicense: Apache-2.0
    • a2a-protocol
    • agentcore
    • agentcore-agent
    • agentcore-gateway
    • agentcore-identity

    githubmeasured growthOpen source ↗

    5GitHub stars+1 (+25.0 %)
  15. 15

    MCP
    Active

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

    PythonLicense: Apache-2.0
    • agent-optimization
    • agent-skills
    • agentic-ai
    • ai-agents
    • claude

    githubmeasured growthOpen source ↗

    47GitHub stars+1 (+2.2 %)
  16. 16

    MCP
    Active

    Production reliability, benchmarking, and evaluation layer for MCP agent runtimes — protocol negotiation, A2A interop, circuit breakers, connection pooling, adaptive streaming, and autoscaling, with measured throughput/latency and a…

    PythonLicense: Apache-2.0
    • a2a-protocol
    • agent-to-agent
    • ai-agents
    • async-python
    • autoscaling

    githubmeasured growthOpen source ↗

    3GitHub starsstable
  17. 17

    MCP
    Active

    Architecture-first Python scaffold for an auditable multi-agent corporate credit desk using A2A, MCP, deterministic credit policies, model routing, and OpenTelemetry.

    Python
    • a2a-protocol
    • agentic-ai
    • auditability
    • clean-architecture
    • credit-risk

    githubmeasured growthOpen source ↗

    0GitHub starsstable
  18. 18

    Agent
    Active

    Generic DeepSeek Harness (dsh) plugins: A2A protocol server, session storage mirror, and Langfuse observability.

    TypeScriptLicense: MIT
    • agent2agent
    • ai-agents
    • cordis
    • deepseek-harness
    • dsh

    githubmeasured growthOpen source ↗

    1GitHub starsstable
  19. 19

    MCP
    Active

    A typed, replayable, budget-aware programming language for LLM agents. Compiles to Python & TypeScript.

    Shell
    • a2a
    • agent-framework
    • agentic-ai
    • ai
    • ai-agents

    githubmeasured growthOpen source ↗

    2GitHub starsstable
  20. 20

    Skill
    Active

    Multi-agent quality gate skill for Claude Code that researches, reviews, tests and challenges AI-generated work before the final answer.

    • agentic-coding
    • agentic-workflow
    • ai-agent-skills
    • ai-code-review
    • ai-workflows

    githubmeasured growthOpen source ↗

    Install git clone https://github.com/ma-nucho-pro/supervisor-skill-claude ~/.claude/skills/supervisor-skill-claude

    2GitHub starsstable
  21. 21

    Agent
    Active

    Deterministic crash tests for agent control planes: paired worlds, hard stops, budgets, scopes, approvals, and hash-linked receipts.

    TypeScriptLicense: Apache-2.0
    • a2a
    • agent-evaluation
    • ai-agents
    • benchmark
    • deterministic-replay

    githubmeasured growthOpen source ↗

    1GitHub starsstable
  22. 22

    Other
    Active

    Local-first Agentic AI Infrastructure Platform with LLM Gateway, Agent DAG Runtime, MCP Tool Hub, A2A Agent Mesh, Local RAG, Tool Sandbox and Observability.

    Python
    • a2a
    • agent-runtime
    • ai-infra
    • deepseek
    • fastapi

    githubmeasured growthOpen source ↗

    1GitHub starsstable
  23. 23

    Agent
    Active

    面向长程研发任务的 Java Agent Harness，支持 A2A 跨语言协作、可恢复执行、上下文工程与 Eval 驱动开发。

    JavaLicense: Apache-2.0
    • a2a
    • agentic-ai
    • ai-agents
    • developer-tools
    • evals

    githubmeasured growthOpen source ↗

    0GitHub starsstable

Learning resources

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

  1. 1

    awesome-llm-observability

    Skill
    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.

    Python
    • ai-agents
    • ai-engineering
    • ai-observability
    • awesome
    • awesome-list
    github

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

    Resourcemeasured growth
    32GitHub stars+2 (+6.7 %)
  2. 2

    trigger_tree

    Skill
    ActiveOpen source ↗

    Documentation-discovery telemetry for Claude Code — heat/cold maps, health grade, evidence-backed router fixes. 100% local, zero tokens. /tt

    PythonLicense: MIT
    • ai-agents
    • claude-code
    • claude-code-plugin
    • docs-as-code
    • documentation
    github

    Install /plugin marketplace add Hedde/trigger_tree

    Resourcemeasured growth
    14GitHub stars+1 (+7.7 %)