AgentIndex icon
AgentIndex
context-mode logo
context-mode
★ 31.8k
vs
ChatCrystal logo
ChatCrystal
★ 61

context-mode vs ChatCrystal

context-mode: 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.; ChatCrystal: ChatCrystal collects conversations from AI coding tools, distills them into structured notes with LLMs, and builds a local searchable knowledge base from your real problem-solving history. It supports multiple sources like Claude Code, Cursor, Codex CLI, Trae, and GitHub Copilot, and offers desktop app, CLI, and Docker deployment options.

01

TL;DR

context-mode logo
context-modeMemory & Context · ★ 31.8k
When to choose:
  • Your sessions fill up with tool output such as Playwright snapshots, GitHub issue lists or logs.
  • You want work state (edits, git operations, tasks, decisions) to survive context compaction without being dumped back into the window.
  • You use a hook-capable agent, where tool routing happens automatically.
When to skip:
  • You need an OSI open-source licence: it uses the Elastic License 2.0, which restricts uses such as offering it as a managed service.
  • Your sessions are short and rarely hit the context limit.
  • You do not want hooks changing how your agent's tools behave.
Read context-mode full review →
ChatCrystal logo
ChatCrystalMemory & Context · ★ 61

Personal knowledge management for developers to revisit AI-assisted problem-solving experiences.

Read ChatCrystal full review →
02

Side-by-Side Comparison

Field
context-mode logocontext-mode
ChatCrystal logoChatCrystal
Category
Memory & Context
Memory & Context
Stars
★ 31.8k
★ 61
License
Elastic License 2.0
Apache-2.0
Install Command
npm install -g context-mode
npm install -g chatcrystal
Updated
1d ago
1d ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
antigravity, claude, claude-code
agent-skills, ai-memory, ai-tools
03

Features

context-mode logocontext-mode
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.
ChatCrystal logoChatCrystal
01Import AI coding conversations from local tool data directories.
02Distill conversations into structured notes with titles, summaries, conclusions, snippets, and tags.
03Search knowledge semantically with embeddings and relation-aware result expansion.
04Build a knowledge graph across related notes and decisions.
05Expose CLI and MCP tools so agents can recall and write back reusable experience.
04

Use Cases

context-mode logocontext-mode
↳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
ChatCrystal logoChatCrystal
↳Personal knowledge management for developers to revisit AI-assisted problem-solving experiences.
↳Team knowledge sharing by importing conversations from multiple tools and building a shared knowledge base.
↳Enhancing AI agents with memory of past solutions via CLI and MCP integrations.
05

Best For

context-mode logocontext-mode
Most PopularTrending
ChatCrystal logoChatCrystal
—
FAQ

FAQ

What is the difference between context-mode and ChatCrystal?
Both context-mode and ChatCrystal are in the Memory & Context category. context-mode has 31.8k stars, while ChatCrystal has 61 stars.
Which is better, context-mode or ChatCrystal?
The best choice depends on your use case. Choose context-mode if Deep repository research and analysis (e.g., architecture, contributors, issues), and ChatCrystal if Personal knowledge management for developers to revisit AI-assisted problem-solving experiences..
Is context-mode free or open source?
Yes, context-mode is open source on GitHub (Elastic License 2.0).
Is ChatCrystal free or open source?
Yes, ChatCrystal is open source on GitHub (Apache-2.0).
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Related

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