Argus is a new VS Code extension that monitors and analyzes Claude Code sessions, helping developers optimize their AI-assisted workflows. Named after the all-seeing giant from Greek mythology, the tool automatically discovers sessions from ~/.claude/projects/ and provides real-time insights through an intuitive dashboard. The extension identifies wasted API calls, duplicate operations, and retry loops to save developers both time and money.

Built with a modern tech stack including React 19, Chart.js, and D3.js, Argus offers six analysis tabs covering everything from cost breakdowns to dependency graphs. The tool tracks token usage, cache performance, and context window utilization while providing AI-powered recommendations for optimization. Developers can customize scanning depth and language settings through VS Code's configuration options.

Available as either a VSIX package or from source, Argus integrates seamlessly with VS Code's sidebar and command palette. The extension's architecture separates backend services from frontend React components, ensuring smooth performance during analysis. With features like automatic session discovery, multi-project support, and intelligent filtering, Argus represents a significant step forward in debugging and optimizing AI development workflows.