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Active·★ 16.0k·NOASSERTION·Updated 2026-05-29
★ Trending★ Dev Tooling★ Memory & Context

Context window optimization for AI coding agents. Sandboxes tool output, 98% reduction. 12 platforms

Every tool call in an MCP (Model-Controller-Program) environment dumps raw data into the context window, quickly consuming space and causing the agent to lose track of ongoing tasks. Context Mode is an MCP server that tackles this by sandboxing tool outputs to significantly reduce context usage, tracking session events in SQLite for continuity, and promoting 'think in code' to minimize data processing within the LLM.

#antigravity#claude#claude-code#claude-code-hooks#claude-code-plugins#claude-code-skill#codex#codex-cli
$ Install
$ npm install -g context-mode
↗ Visit site★ GitHub
01

Features

01Context Saving: Sandbox tools keep raw data out of the context window, achieving up to 98% reduction.
02Session Continuity: Tracks every file edit, git operation, task, and user decision in SQLite for seamless session resume.
03Think in Code: Promotes LLMs to program analysis, not compute it, saving 100x context by logging only results.
04Batch Execution & Search: Run multiple commands/queries in one call with tools like `ctx_batch_execute`.
05Advanced Knowledge Base: Uses SQLite FTS5 with BM25 ranking, smart snippets, and TTL cache for efficient information retrieval.
02

Compatibility

Claude Code
Native Plugin
Verified via docs
Gemini CLI
Full Hooks
Verified via docs
VS Code Copilot
Full Hooks
Verified via docs
Cursor
Partial Hooks
Verified via docs
OpenCode
Plugin Hooks (No SessionStart)
Verified via docs
KiloCode
Plugin Hooks (SessionStart TBD)
Verified via docs
03

Quick start

1
$ npm install -g context-mode
04

Use cases

↳Deep repository research and analysis (e.g., architecture, contributors, issues)
↳Analyze Git history to identify top contributors, commit frequency, and most changed files
↳Efficiently process large JSON APIs, web pages, or logs without flooding the context window
05

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Related searches

context-mode AlternativesBest Memory & Context Tools 2026Open Source Memory & Contextcontext-mode Tutorialcontext-mode Vs Competitorsantigravityclaudeclaude-code

Comments

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  • K
    Kendall JohnsonApr 21, 2026

    98% context window reduction through intelligent sandboxing is the key claim.

  • S
    Spencer DavisApr 6, 2026

    Good for large codebase workflows where context limits are the primary constraint.

  • E
    Ellis WhiteMar 7, 2026

    Works with AI coding agents without requiring changes to their prompts.

  • D
    Drew MartinezMar 5, 2026

    Sandbox approach isolates tool output so only relevant content consumes context.

On this page
01Features02Compatibility03Quick start04Use cases05Alternatives
Stats
GitHub Stars★ 16.0k
Last commit1d ago
StatusActive
LicenseNOASSERTION
CategoryMemory & Context
Trend (30d)
+0.6k↑ 4.0%
Links
Documentation↗Discussion↗Issues↗Releases↗

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