Tired of repeating yourself to
Claude Code?
Agents shouldn't have to be re-taught your project every session. Jumbo gives them the context they're missing, so you don't have to.
Works with
Can we address the elephant in the room?
Working with coding agents is amazing. But let's be honest: it's not without frustration.
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Agent Amnesia
Every session that came before is forgotten. You spend time and energy getting the agent caught up before you even start thinking about your goals.
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Slop
AI without guardrails can produce code that kind of works, but it's rarely production-ready. That's not a productivity boost. It's a hassle.
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Vendor Lock-in
If an agent harness holds your memory, switching tools means losing that context. Your context should move with you.
Unlock the full joy of coding agents.
Jumbo was created to address the frustrations that keep that joy suppressed.
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Never onboard your agent again
Your time belongs to the work, not to re-explaining it. Jumbo remembers your decisions, constraints, and architecture, so every session starts informed. That's memory.
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Ship it right the first time
Rework isn't the cost of using agents. It's the cost of agents working blind. With the right context, the first draft is the shippable one. That's quality.
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Lead a team, not a tool
You shouldn't have to babysit one agent at a time. Run several in parallel, matched to capability and cost, while Jumbo keeps them all on the same page. That's orchestration.
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Pick the best tool for every job
Loyalty should be earned, not enforced. Jumbo works with any harness and any model, so use them interchangeably or side by side. That's interoperability.
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Your context belongs to you
What you teach your tools shouldn't die with them. Switch to new models the day they ship, and everything Jumbo knows comes with you. That's portability.
You drive. Jumbo orchestrates. Your agents execute.
See the purest examples in action
You
Define your goals
Create goals straight from the command line, or let the TUI wizard guide you through it.
Jumbo
Generate the spec
Jumbo ensures past memories get bound to the goal. Ensuring the agent has all the context it needs, nothing it doesn't.
Agent
Run your agent
Point your agent at a goal and Jumbo serves a spec tailored to it. If it goes off the rails, correct it once. Jumbo captures the lesson to memory and applies it to relevant future goals.
Local. Free. Yours.
All data stays in .jumbo/ in your project. Nothing leaves your machine: no network calls, no lag.
npm i -g jumbo-cli. Then initialize your project and Jumbo will run in your next agent session.
Free and open source for single developer use. Cross my heart and hope to die.
Small details, big joy.
The core capabilities solve the headaches. These make Jumbo a pleasure to use.
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Context windows
Run agents longer without context rot.
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Automatic
Hooks into your agent session and orchestrates the flow. It just works.
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Full control
Jumbo's memories are yours. Manage your data directly from the terminal.
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Private
All data stays local. Nothing leaves your machine.
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Fast
No network calls. No lag. Everything runs locally.
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Open standards
Built on AGENTS.md and the open agent skill standard. No proprietary glue.
Jumbo is genuinely fascinating because it solves a core problem most builders are hitting right now: coordinating agents around a single goal without everything falling apart. No endless new threads when the AI loses context. You just build, and complete.Lorenz Flechtenmacher, CEO dewa
Up and running in three steps.
No config files, no API keys, no login required. Install it, point it at your project, and keep coding.
Step 01
Install
One global npm package. Jumbo lives in your terminal, next to your agent.
npm i -g jumbo-cli
Step 02
Initialize
Browse to your project directory and run Jumbo. It guides you through getting started.
jumbo
Step 03
Build
Start your coding agent. Jumbo hooks into the session automatically and guides the flow.
claude
Questions, answered.
What is Jumbo?
Jumbo is a CLI tool that gives your coding agents persistent memory and structured project context, turning them from makers of workable prototypes into builders of production-quality software.
Is Jumbo for context engineering?
Exactly! Jumbo is essentially context engineering with a fraction of the effort required to maintain markdown files and with better results. It works by collecting insights about your project as they arise in your agent workflow and serving context automatically to your coding agent.
How does Jumbo integrate with my AI agent?
Through hooks, with fallback to AGENTS.md. Your agent calls jumbo session start at the beginning of a session, and Jumbo injects relevant project context. A richer context packet is delivered when the agent starts work on a goal. New insights are captured in the natural flow of your agent conversations.
What if I change agents or models?
Change agents and models at will. Jumbo is harness- and model-agnostic. It works with any coding agent that supports AGENTS.md and truly excels with harnesses that support open agent skills. Jumbo just picks up where you left off.
Can I control what data Jumbo captures?
Absolutely. You control how you want your agent to interact with Jumbo. Stay in-the-loop by approving each command, or run with pre-approved Jumbo commands for an automated experience.
Is Jumbo going to hijack my agent?
Not at all. Jumbo prescribes an opinionated workflow that you can always bypass. It works alongside your agent to enhance its capabilities.
How does Jumbo ensure privacy?
All data stays local. Nothing leaves your machine. Jumbo stores everything in .jumbo/ in your project directory.
Why not just use markdown files?
Jumbo goes beyond static markdown files. It's an immutable event stream — capturing your entire project history, always current and auditable. You stay in your flow, never repeat yourself — only add new information when you need to. Markdown is a snapshot in time, Jumbo is your project's living memory.
How do I install Jumbo?
Three commands: npm i -g jumbo-cli, then jumbo in your project, then start your coding agent. Jumbo hooks in automatically.
Does Jumbo work for teams?
Jumbo is currently optimized for single developer use. A cloud version for teams — Jumbo Herd — is under development. Sign up to get notified when it launches.
Stop agent amnesia.
Install Jumbo and it will guide you from there. Every session remembers your project, so your agent never forgets where you left off.
npm i -g jumbo-cli Get started →
Great teams share more than code.
Your goals, decisions, and constraints shape everything you build. Jumbo Herd gives every engineer—and every agent—the same project memory, so your team can move forward without starting over.