Tools: CodeSage: When grep Just Isn't Enough Anymore

The Three Pillars of Code Understanding ## 1. Vector Search: Find Code by Meaning ## 2. Graph Traversal: Understand Relationships ## 3. Developer Memory: Learn Your Patterns ## Interactive Chat with Specialized Modes ## Smart Query Expansion ## Works with Your AI IDE ## The Technical Stack ## Getting Started ## Language Support ## What's Next ## Try It CodeSage is a local-first code intelligence CLI. You index your codebase once, and then you can search it using natural language. No cloud. No API keys. Everything runs on your machine. But semantic search is just the beginning. Most code search tools do one thing: match text. CodeSage takes a fundamentally different approach by combining three complementary techniques: "Authentication middleware" and "JWT token validator" mean similar things, even though they share no words. Vector embeddings capture this semantic relationship, letting you find code by what it does, not just what it's called. Code doesn't exist in isolation. Functions call other functions. Classes inherit from base classes. Modules import dependencies. CodeSage builds a knowledge graph of these relationships using KuzuDB, so you can ask questions like: Here's where it gets interesting. CodeSage doesn't just index what your code does—it learns how you write it. It tracks your naming conventions, your preferred patterns, your common approaches to recurring problems. This memory persists globally across all your projects, so insights from one codebase help with others. The result? Suggestions that feel idiomatic to your style, not generic best practices from Stack Overflow. Not all work is the same, and neither is how you interact with your code. CodeSage offers three chat modes, each optimized for a different workflow: Switch anytime with /mode implement or let CodeSage detect your intent from context. The chat commands go deep: Intent Detection: It understands if you're explaining, debugging, implementing, or reviewing—and adjusts its response accordingly. Synonym Expansion: Search for "auth" and it automatically includes authentication, authorization, JWT, OAuth, and related terms. Context Memory: It remembers what you discussed earlier in the session. "What about the other handler?" just works. CodeSage isn't just a standalone tool. It integrates with Claude Desktop, Cursor, and Windsurf via the Model Context Protocol (MCP). To start the MCP server manually: Or add this to your MCP client configuration: Now your AI assistant has access to intelligent code search across all your indexed projects: Your AI assistant stops giving generic answers and starts giving grounded answers based on your actual codebase. Everything runs locally. No exceptions. You need Ollama running with a few models: That's it. No cloud accounts, no API keys, no data leaving your machine. Installation takes one command: Then index your first project: Python works out of the box. For JavaScript, TypeScript, Go, and Rust: We're actively developing: GitHub: github.com/keshavashiya/codesage Contributions, feedback, and feature requests are all welcome. CodeSage: Stop searching. Start asking. Templates let you quickly answer FAQs or store snippets for re-use. Are you sure you want to hide this comment? It will become hidden in your post, but will still be visible via the comment's permalink. Hide child comments as well For further actions, you may consider blocking this person and/or reporting abuse CODE_BLOCK: codesage init codesage index codesage search "validate email addresses" Enter fullscreen mode Exit fullscreen mode CODE_BLOCK: codesage init codesage index codesage search "validate email addresses" CODE_BLOCK: codesage init codesage index codesage search "validate email addresses" COMMAND_BLOCK: /search <query> Semantic code search /deep <query> Multi-agent analysis (runs parallel search strategies) /plan <task> Implementation plan using your existing patterns /review [file] Code review with security awareness /impact <element> Blast radius analysis—what breaks if this changes? /similar <code> Find similar patterns across your codebase /patterns Show what CodeSage has learned about your style Enter fullscreen mode Exit fullscreen mode COMMAND_BLOCK: /search <query> Semantic code search /deep <query> Multi-agent analysis (runs parallel search strategies) /plan <task> Implementation plan using your existing patterns /review [file] Code review with security awareness /impact <element> Blast radius analysis—what breaks if this changes? /similar <code> Find similar patterns across your codebase /patterns Show what CodeSage has learned about your style COMMAND_BLOCK: /search <query> Semantic code search /deep <query> Multi-agent analysis (runs parallel search strategies) /plan <task> Implementation plan using your existing patterns /review [file] Code review with security awareness /impact <element> Blast radius analysis—what breaks if this changes? /similar <code> Find similar patterns across your codebase /patterns Show what CodeSage has learned about your style CODE_BLOCK: codesage mcp serve --global Enter fullscreen mode Exit fullscreen mode CODE_BLOCK: codesage mcp serve --global CODE_BLOCK: codesage mcp serve --global CODE_BLOCK: { "mcpServers": { "codesage": { "command": "codesage", "args": ["mcp", "serve", "--global"] } } } Enter fullscreen mode Exit fullscreen mode CODE_BLOCK: { "mcpServers": { "codesage": { "command": "codesage", "args": ["mcp", "serve", "--global"] } } } CODE_BLOCK: { "mcpServers": { "codesage": { "command": "codesage", "args": ["mcp", "serve", "--global"] } } } CODE_BLOCK: ollama pull qwen2.5-coder:7b ollama pull mxbai-embed-large ollama serve Enter fullscreen mode Exit fullscreen mode CODE_BLOCK: ollama pull qwen2.5-coder:7b ollama pull mxbai-embed-large ollama serve CODE_BLOCK: ollama pull qwen2.5-coder:7b ollama pull mxbai-embed-large ollama serve COMMAND_BLOCK: pipx install pycodesage Enter fullscreen mode Exit fullscreen mode COMMAND_BLOCK: pipx install pycodesage COMMAND_BLOCK: pipx install pycodesage CODE_BLOCK: cd your-project codesage init codesage index Enter fullscreen mode Exit fullscreen mode CODE_BLOCK: cd your-project codesage init codesage index CODE_BLOCK: cd your-project codesage init codesage index CODE_BLOCK: codesage search "handle user registration" codesage chat Enter fullscreen mode Exit fullscreen mode CODE_BLOCK: codesage search "handle user registration" codesage chat CODE_BLOCK: codesage search "handle user registration" codesage chat COMMAND_BLOCK: pipx inject pycodesage pycodesage[multi-language] Enter fullscreen mode Exit fullscreen mode COMMAND_BLOCK: pipx inject pycodesage pycodesage[multi-language] COMMAND_BLOCK: pipx inject pycodesage pycodesage[multi-language] COMMAND_BLOCK: pipx install pycodesage Enter fullscreen mode Exit fullscreen mode COMMAND_BLOCK: pipx install pycodesage COMMAND_BLOCK: pipx install pycodesage - "What functions call this method?" - "What would break if I changed this class?" - "How does data flow from the API endpoint to the database?" - Ollama handles embeddings and LLM responses - LanceDB provides vector storage with fast similarity search - KuzuDB powers the code relationship graph - SQLite stores metadata and developer memory - More language parsers — expanding beyond the current set - Cross-project learning — enhanced pattern sharing between codebases - Documentation generation — auto-generate docs that match your style