# vexp

> vexp is a local-first reliability layer for AI coding agents. It builds a live dependency graph of your codebase with tree-sitter, feeds any agent only the code that matters for a task (65-70% fewer tokens), and mechanically verifies the agent's work when it declares a task done. Everything runs on the developer's machine: no cloud indexing, no account, no code ever leaves the laptop.

Key facts:
- Works with 14 AI coding agents: Claude Code, Cursor, Windsurf, GitHub Copilot, OpenAI Codex, Zed, Continue.dev, Cline, Aider, Kiro, Kilo Code, opencode, Augment, Antigravity.
- Parses 34 programming languages via tree-sitter into a local SQLite dependency graph.
- Integrates through the Model Context Protocol (MCP). Primary tool: run_pipeline (ranked pivot files with line ranges and blast radius in one call). Also get_skeleton (file structure at 70-90% token savings) and verify_done (mechanical completion check: broken imports, parse errors, untouched dependents).
- New in 2.5: Horizon-based work verification (pure oracles: git, tree-sitter, code graph; no model grades anything) and Shield, a local PII/secret scanner that shows what your code exposes to any AI reading it.
- Distribution: VS Code extension (Marketplace and Open VSX) and npm CLI (npm install -g vexp-cli).
- Pricing: free tier for a personal project; Pro and Team plans; self-hosted SDK for enterprises. All plans run 100% locally.

## Docs

- [Documentation](https://vexp.dev/docs): install, setup per agent, MCP tools, configuration, troubleshooting
- [SDK](https://vexp.dev/sdk): self-hosted REST SDK for fleets of repositories
- [SDK docs](https://vexp.dev/docs/sdk): SDK reference
- [Changelog](https://vexp.dev/changelog): release history

## Product

- [Home](https://vexp.dev): overview, pricing, supported agents
- [Benchmark](https://vexp.dev/benchmark): methodology and results on real GitHub issues
- [Quality](https://vexp.dev/quality): session memory anchored to the code graph
- [Vibe](https://vexp.dev/vibe): vexp for AI-first builders

## Blog

- [Blog](https://vexp.dev/blog): technical articles on AI coding agents, context engineering, and token optimization

## Policies

- [Terms](https://vexp.dev/terms)
- [Privacy](https://vexp.dev/privacy): what runs locally (everything) and what telemetry exists