#tracing

Langfuse Traces

nicolasmota

Inline Langfuse trace viewer for VS Code — inspect LLM spans, token usage and costs without leaving the editor

AgentLens - Agentic AI Monitoring & Observability

agentlens

Agentic AI monitoring and observability — OTEL traces and local log file ingestion for Copilot, Claude Code, Codex, and OpenCode. VS Code extension, npx, and Docker.

OpenTelemetry

SukantaSaha

Runtime observability inside VS Code: collect and explore OpenTelemetry logs, metrics, traces, spans, and a service map via an embedded OTLP receiver.

Color Tracr

xulbux

Highly performant, ultra-lightweight color marking extension for the editor.

TraceGraph

tracegraph

Runtime behaviour tracing, change coverage, and AI context packs for VS Code.

btfmt - bpftrace Language Support

fanyang89

Format, complete, and navigate bpftrace scripts with a bundled language server.

Open Chrome Catapult trace files directly inside VS Code.

Understand your AI agents from the OpenTelemetry data they emit — draw conclusions about failures, performance, tokens, and sessions, directly in VS Code.

Test Tracer

sammacorpy

Bidirectional test-to-code linking — see which tests cover a code path, jump to tests from implementation.

Agent Latency Lab

JohnBaker

Analyze AI agent latency, cost, and retrieval quality — trace waterfalls, fork/join critical-path detection, and what-if optimizations, right inside VS Code.