# mksglu/context\-mode Context Mode: Local Plugin to Optimize AI Coding Agent Context - HackerByte page: - GitHub: - Programming language: JavaScript Free, local plugin that keeps tool output out of your coding agent's context window. Sandbox and SQLite FTS5 search, 99% fewer bytes in context. Works with Claude Code, Codex, Pi, OpenCode, Gemini CLI, Copilot CLI and 4 more agents. Zero telemetry. ## AI-generated summary Context Mode is a free, local plugin designed to significantly reduce the amount of tool output fed into AI coding agents' context windows. By processing tool results in a local sandbox and storing them in a SQLite index, it sends only the necessary information to the agent, saving up to 99.8% of raw output bytes. This approach enhances efficiency, reduces costs associated with large context windows, and ensures user data remains on their machine. ## Key points - Reduces context window usage by up to 99.8%, sending only essential data to AI agents. - Operates locally on the user's machine with zero telemetry, keeping all usage data private. - Supports a wide range of 10\+ coding agents including Claude Code, Codex, Gemini CLI, and Copilot CLI. - Utilizes a local SQLite index for storing full tool outputs, enabling efficient retrieval. - Offers advanced features like 'Thinking in Code' where agents script tasks instead of processing raw data.