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Breadcrumb is the Plausible of LLM tracing. Self-hosted, open source, and built for developers who just want to understand what their agents are actually doing without the enterprise bloat of LangFuse or LangSmith. Three lines to get your app traced. An LLM watches every trace and automatically flags issues: wrong tool calls, looping agents, oversized models and cost spikes, all before you even know something's wrong. Ask questions about your traces in plain English and get charts back.
Breadcrumb
BreadcrumbOpen-source LLM tracing for agent visibility
Designers love Claude Code for prototyping, but tweaking designs is still hard. Flare fixes this. Works with any web app: Add a script tag or Vite plugin. Edit CSS visually in the browser, copy as a prompt, paste into Claude Code to update your source.
Flare Design
Flare DesignVisual CSS editor that ships code changes through Claude AI