AgentIndex icon
AgentIndex
magic-context logo
magic-context
★ 2.4k
vs
ctx-open logo
ctx-open
★ 59

magic-context vs ctx-open

magic-context: Magic Context is a context and memory plugin for coding agent harnesses (OpenCode, Pi and OMP) that compresses history in the background, lifts decisions and conventions into project memory and recalls them each turn. It replaces the host's built-in compaction so one session per project can run for weeks without pauses.; ctx-open: CTX is a cognitive version control system for AI agents, preserving structured reasoning artifacts as durable state instead of ephemeral chat transcripts. It enables agents to maintain continuity across sessions, track decisions, and reproduce reasoning paths. The system includes a CLI, a local MCP server, and a web viewer.

01

TL;DR

magic-context logo
magic-contextMemory & Context · ★ 2.4k

Keep one coding-agent session per project running for weeks

Read magic-context full review →
ctx-open logo
ctx-openMemory & Context · ★ 59

Multi-session agent continuity: resume work across interruptions without re-investigation

Read ctx-open full review →
02

Side-by-Side Comparison

Field
magic-context logomagic-context
ctx-open logoctx-open
Category
Memory & Context
Memory & Context
Stars
★ 2.4k
★ 59
License
MIT
NOASSERTION
Install Command
npx @cortexkit/magic-context@latest setup
git clone https://github.com/diegoxtr/ctx-open.git && cd ctx-open && bash ./install.sh
Updated
1d ago
1mo ago
Open Source
Yes
Yes
Website
↗ Visit
↗ Visit
GitHub
↗ GitHub
↗ GitHub
Tags
agent-framework, agent-memory, ai
agent-memory, ai, ai-agents
03

Features

magic-context logomagic-context
01Background history compression that lifts durable knowledge into project memory
02Overnight dreamer agents verify, deduplicate and curate memories
03Automatic recall each turn plus search across memories, past conversations and git history
04Setup wizard that configures OpenCode, Pi or OMP and disables built-in compaction
ctx-open logoctx-open
01Structured cognitive versioning with goals, tasks, hypotheses, evidence, decisions, and conclusions
02Persistent working memory that survives model changes, provider changes, and session loss
03Local stdio MCP server for integration with MCP-capable agents and IDEs
04Cross-platform CLI and web viewer supporting multiple repositories and branches
05Agent operating protocol with minimal state machine: working context, closeout, commit
04

Use Cases

magic-context logomagic-context
↳Keep one coding-agent session per project running for weeks
↳Avoid compaction pauses that drop context mid-task
↳Give an agent memory of past decisions and project conventions
ctx-open logoctx-open
↳Multi-session agent continuity: resume work across interruptions without re-investigation
↳Tracking and explaining AI decisions: preserve the reasoning trail for auditing and reproducibility
↳Generating structured training data: capture how ideas evolved with complete evidence and decisions
05

Best For

magic-context logomagic-context
EssentialTrending
ctx-open logoctx-open
—
FAQ

FAQ

What is the difference between magic-context and ctx-open?
Both magic-context and ctx-open are in the Memory & Context category. magic-context has 2.4k stars, while ctx-open has 59 stars.
Which is better, magic-context or ctx-open?
The best choice depends on your use case. Choose magic-context if Keep one coding-agent session per project running for weeks, and ctx-open if Multi-session agent continuity: resume work across interruptions without re-investigation.
Is magic-context free or open source?
Yes, magic-context is open source on GitHub (MIT).
Is ctx-open free or open source?
Yes, ctx-open is open source on GitHub (NOASSERTION).
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Related

Alternatives to magic-context →Alternatives to ctx-open →magic-context details →ctx-open details →