YiHui CONTEXT MODE

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name: context-mode description: context-mode is an MCP server that saves 98% of your context window by sandboxing tool outputs. It routes large file reads, shell outputs, and web fetches through SQLite + FTS5 instead of flooding the context. Also provides session continuity across context compactions via BM25 retrieval. triggers: - 分析项目 - 有多少文件 - 帮我研究 - 检查更新 - token 节省 - 上下文压缩 - context overflow - 帮我搜索 tags: - token-optimization - context-management - mcp - productivity compatibility: openclaw | claude-code | vscode-copilot | cursor | gemini-cli license: ELv2 source: https://github.com/mksglu/context-mode

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Context Mode

An MCP server that solves the context window problem in AI coding agents. It provides: 1. Context Saving — sandbox tools keep raw data out of context window 2. Session Continuity — SQLite + FTS5 for event tracking 3. Think in Code — program analysis instead of reading files 4. Output Compression — terse output format reducing tokens 65-75%

Available Tools

| Tool | When to Use | Token Savings | |------|-------------|---------------| | ctx_batch_execute | Run multiple commands + auto-search results | 90%+ vs raw exec | | ctx_execute | Single script execution (JS/Python/Shell) | 90%+ vs raw exec | | ctx_execute_file | Run code from a file, return only result | high | | ctx_index | Index docs/knowledge into searchable FTS5 | — | | ctx_search | Search indexed content with BM25 | fast recall | | ctx_fetch_and_index | Fetch URL + index into knowledge base | 90%+ vs raw web fetch |

Decision Rules

Use ctx_batch_execute instead of multiple exec/read calls when:

Analyzing multiple files at once

Counting/grepping across many files

Need command output + search results together

Use ctx_execute instead of reading files when:

User asks "how many lines/funcs/classes in X"

Need to compute something, not just read it

Use ctx_fetch_and_index instead of web_fetch when:

Researching a topic across multiple pages

Full raw content won't fit in context

Output Format

Terse. Drop filler, pleasantries, hedging.

❌ "So I ran a command to check the files and found that there are..."
✅ "Checked. 3 TypeScript files: src/index.ts (142 lines), src/cli.ts (89 lines)."

OpenClaw Integration

Install via MCP:

openclaw mcp set context-mode '{"command":"npx","args":["-y","context-mode"]}'
openclaw gateway restart