memorycrystal
★ 12
vs
context-mode
★ 31.7k
memorycrystal vs context-mode
memorycrystal: Memory Crystal provides persistent memory for AI agents, solving the problem of AI forgetting information between sessions. It captures conversations, distills durable knowledge into long-term memory, and recalls the right context when an agent needs it.; 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.
01
TL;DR
memorycrystalMemory & Context · ★ 12
Enabling AI agents to maintain continuity and recall past decisions across multiple sessions.
context-modeMemory & Context · ★ 31.7k
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.
02
Side-by-Side Comparison
Field
memorycrystalcontext-modeCategory
Memory & Context
Memory & Context
Stars
★ 12
★ 31.7k
License
MIT
Elastic License 2.0
Install Command
curl -fsSL https://memorycrystal.ai/crystal | bash
npm install -g context-mode
Updated
1d ago
1d ago
Open Source
Yes
Yes
Tags
Persistent Memory, AI Agent Memory, Context Management
antigravity, claude, claude-code
03
Features
memorycrystal01Two-layer memory architecture including Short-term (STM) for recent messages and Long-term (LTM) for durable knowledge.
02Five specialized memory stores (sensory, episodic, semantic, procedural, prospective) for different types of information.
03Adaptive recall with six automatically selected modes to prioritize broad recall, decisions, projects, people, workflows, or conversations.
04First-class immutable knowledge bases for structured reference data, policies, and runbooks, separate from conversational memory.
05Comprehensive set of memory management tools and an authenticated HTTP API for core operations like capture, recall, and search.
context-mode01Context 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.
04
Use Cases
memorycrystal↳Enabling AI agents to maintain continuity and recall past decisions across multiple sessions.
↳Integrating persistent memory with various AI tools and platforms like Claude Code, Codex CLI, and OpenClaw.
↳Storing and retrieving structured reference data, policies, and runbooks via immutable knowledge bases.
↳Performing decision archaeology to understand why past choices were made and tracing memories back to their source.
↳Providing pre-flight checks and guardrails for risky AI actions based on learned procedural memory.
context-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
05
Best For
memorycrystal—
context-modeMost PopularTrending
FAQ
FAQ
What is the difference between memorycrystal and context-mode?
Both memorycrystal and context-mode are in the Memory & Context category. memorycrystal has 12 stars, while context-mode has 31.7k stars.
Which is better, memorycrystal or context-mode?
The best choice depends on your use case. Choose memorycrystal if Enabling AI agents to maintain continuity and recall past decisions across multiple sessions., and context-mode if Deep repository research and analysis (e.g., architecture, contributors, issues).
Is memorycrystal free or open source?
Yes, memorycrystal is open source on GitHub (MIT).
Is context-mode free or open source?
Yes, context-mode is open source on GitHub (Elastic License 2.0).
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