Context Mode (context-mode-5)
context-mode for GitHub Copilot CLI: sandboxed code execution in 11 languages, an FTS5 knowledge base with BM25 ranking, and session capture. Saves your context window by keeping raw bytes out of the conversation.
- Type
- Plugin
- Repository
- mksglu/context-mode
- GitHub stars
- 24.1k
- License
- Not declared
- Repo last updated
- Sep 27, 2026
- Source file
- configs/copilot-cli/.github/plugin/plugin.json
- Version
- 1.0.169
- Author
- Mert Koseoğlu
What Context Mode (context-mode-5) is
Context Mode (context-mode-5) is a plugin published in the mksglu/context-mode repository on GitHub, which has about 24.1k stars. The repository describes itself as: “Context window optimization for AI coding agents. Sandboxes tool output (98% reduction), persists session memory, and enforces routing across 17 platforms via MCP + hooks.”
A plugin is a package that bundles skills, slash commands, subagents, hooks, and MCP connectors so they install together. Plugins are plain files with a manifest at .claude-plugin/plugin.json, and they work in both Claude Code and Claude Cowork.
Installing Context Mode adds everything it ships in one step. Connectors inside a plugin still need to be connected separately, and hooks and subagents only run in Cowork and Claude Code, not in regular chat.
How to install Context Mode (context-mode-5)
Claude Code
- Add the repository as a plugin marketplace: claude plugin marketplace add mksglu/context-mode
- Install the plugin: claude plugin install context-mode@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json.
- Restart the session if the new skills or commands don't appear straight away.
Claude Cowork
- Open Customize → Plugins and choose Add marketplace.
- Enter mksglu/context-mode (the owner/repo shorthand works for GitHub).
- Find Context Mode in the list, click Install, then connect any connectors it needs from its Connectors tab.
New to extending Cowork? Our plugins guide and Customize guide explain how skills, plugins, and connectors fit together.
Inside the source file
We couldn't retrieve the source file for this entry. Browse the repository on GitHub to find it and read the README before installing.
Before you install
- Read the whole file first. Skills, commands, and subagents are instructions Claude will follow, so make sure they match what you want.
- Check which tools, scripts, or MCP servers it uses. Local servers and scripts run with your permissions.
- Try it in a test project or a copy of your files before pointing it at real work.
- Pin the version you tested, and review changes before updating.
- Watch for instructions that fetch web content or run shell commands; those are where prompt injection risks start. See our prompt injection guide.
FAQ
What is Context Mode (context-mode-5)?
Context Mode (context-mode-5) is a plugin for Claude Code and Claude Cowork from the mksglu/context-mode repository on GitHub. context-mode for GitHub Copilot CLI: sandboxed code execution in 11 languages, an FTS5 knowledge base with BM25 ranking, and session capture. Saves your context window by keeping raw bytes out of the conversation.
How do I install Context Mode (context-mode-5) in Claude Code?
Add the repository as a plugin marketplace: claude plugin marketplace add mksglu/context-mode Install the plugin: claude plugin install context-mode@<marketplace-name>, using the marketplace name from the repository's .claude-plugin/marketplace.json. Restart the session if the new skills or commands don't appear straight away.
Can I use Context Mode (context-mode-5) in Claude Cowork?
Open Customize → Plugins and choose Add marketplace. Enter mksglu/context-mode (the owner/repo shorthand works for GitHub). Find Context Mode in the list, click Install, then connect any connectors it needs from its Connectors tab.
Is Context Mode (context-mode-5) safe to install?
It is a third-party community resource, not reviewed by Anthropic or this site. Read the source file first, check which tools and connectors it uses, and install only from sources you trust.
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