Preserve Coding Agent Context By Sandboxing Bulky Tool Output And Retrieving Only Relevant Session State With Context Mode

---
name: "Preserve coding-agent context by sandboxing bulky tool output and retrieving only relevant session state with Context Mode"
slug: "preserve-coding-agent-context-by-sandboxing-bulky-tool-output-and-retrieving-only-relevant-session-state-with-context-mode"
description: "Use Context Mode when a coding agent keeps burning context on large tool outputs or loses its place after compaction. It wraps tool-heavy workflows with sandboxed execution, indexed session history, and targeted retrieval so the agent can keep working without reloading raw data into the prompt."
github_stars: 9956
verification: "security_reviewed"
source: "https://github.com/mksglu/context-mode"
author: "mksglu"
publisher_type: "Individual"
category: "Developer Tools"
framework: "Multi-Framework"
tool_ecosystem:
  github_repo: "mksglu/context-mode"
  github_stars: 9956
  npm_package: "context-mode"
  npm_weekly_downloads: 5456
---

# Preserve coding-agent context by sandboxing bulky tool output and retrieving only relevant session state with Context Mode

Use Context Mode when a coding agent keeps burning context on large tool outputs or loses its place after compaction. It wraps tool-heavy workflows with sandboxed execution, indexed session history, and targeted retrieval so the agent can keep working without reloading raw data into the prompt.

## Prerequisites

Supported coding agent runtime with MCP or plugin support; Node.js; local SQLite storage

## Installation

Use the upstream install or setup path that matches your environment:
- npm install -g context-mode
- git clone https://github.com/mksglu/context-mode.git
- npm run install:openclaw
- npm run install:openclaw -- /path/to/openclaw-state

Requirements and caveats from upstream:
- **Prerequisites:** Claude Code v1.0.33+ (claude --version). If /plugin is not recognized, update first: brew upgrade claude-code or npm update -g @anthropic-ai/claude-code.
- **Prerequisites:** Node.js >= 22.5 (or Bun), Gemini CLI installed.
- **Prerequisites:** Node.js >= 22.5 (or Bun), VS Code with Copilot Chat v0.32+.

Basic usage or getting-started notes:
- Platforms are grouped by install complexity. Hook-capable platforms get automatic routing enforcement. Non-hook platforms need a one-time routing file copy.
- <details open>
- <summary><strong>Claude Code</strong> — plugin marketplace, fully automatic</summary>

- Source: https://github.com/mksglu/context-mode
- Extracted from upstream docs: https://raw.githubusercontent.com/mksglu/context-mode/HEAD/README.md

## Documentation

- https://context-mode.com

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/preserve-coding-agent-context-by-sandboxing-bulky-tool-output-and-retrieving-only-relevant-session-state-with-context-mode/)