Guides

Why coding agents grep instead of indexing, and how to search code, PDFs, Word and Excel files together over MCP, with commands you can run.

Open in ChatGPT Open in Claude

Each guide runs real commands on public files, and every figure in it comes from the published scorecard.

Claude Code doesn't index your codebase

How Claude Code finds code today, where grep misses, and what an index changes, measured.

Search code and documents together over MCP

One index over a repository and its PDFs, Word and Excel files, for any agent client.

ChatGPT desktop (the Codex app)

How to connect ChatGPT desktop (the Codex app) to Semlith over MCP, the command or file that adds it, and how to check the connection works.

Claude Code and grep

Claude Code finds code with grep and find, not an index. Where that works, where it misses, and what an index changes, measured on SWE-bench Verified.