The context your AI agents have been missing.
Celeborn gives every coding agent a persistent, tiered context substrate — so they stop forgetting your project the moment the window fills, and start picking up exactly where the last one left off.
Designed to work with Claude Code, Grok Build, Codex, Cursor, and just about any model you can think of…
Captures every turn — and rehydrates the next session.
Disposable sessions become your compounding asset.
Every AI coding session starts from amnesia: you re-explain the architecture, the decisions, the gotchas — burning tokens and time — and then a compaction or a restart wipes it and you do it again. Celeborn turns that forgetting into context that gets more valuable every turn, every agent, and every teammate you add.
The next session wakes up already knowing everything.
Your agents never forget.
Free & localCeleborn fixes amnesia on your own machine, for free, forever. Run one agent or a whole local fleet — they all read and write the same local .context/, sharing one mind.
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A tiered
.context/storeA Hot headline loads on every session start, with working notes, durable docs, decisions, and a journal underneath — read on demand.
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Automatic rehydration
A Claude Code hook reloads the Hot tier at the start of every session and bridges compactions, so the agent resumes with full awareness and zero re-priming.
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Mechanical capture
Every turn is recorded automatically. A stale hand-written state can never silently rot, because the machine keeps an always-current record beside it.
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Local multi-agent telepathy
Run as many agents as you like on one machine — they share the same local
.context/and channel, so a finding by one is instantly known to all. No cloud required.
No network, fully offline — and Celeborn estimates the tokens and restarts it has saved you. Free, and always will be.
Edit on one device — every other updates in seconds.
Your context, on every device.
CloudRunning a fleet is already free and local. Cloud lifts your .context/ into the cloud — so the exact same mind stays coherent across your laptop, desktop, even your phone, in real-time.
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Real-time cloud sync
Edit context on one device; every other device sees it within seconds — no git dance, no manual transport.
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One context, everywhere
Your whole local fleet's
.context/stays identical on every machine you touch. Start on your desktop, finish on your phone. -
Unlimited projects
Every project you run, hosted and synced, with zero setup and nothing to wire up by hand.
Cloud is about reach, not headcount — multi-agent is already free. Pick up on your phone exactly where your desktop left off.
One decision becomes everyone's context.
The whole team shares one context — across all models, agents, and IDEs.
TeamDrop a team into that shared mind and it stops being a tool and becomes institutional knowledge that writes itself.
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Shared projects & shared context
Teammates' agents inherit the same living context. A decision one agent made is context every other agent has moments later — onboarding collapses from weeks to minutes, because the project explains itself.
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Shared agent telepathy across people
Not just your fleet on the bus, but the whole team's. Agents coordinate across humans the way a great team does — nothing lost to a closed laptop or a forgotten Slack thread.
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Admin & governance
Org-level controls, seat management, and a single place the team's accumulated context lives — redacted of secrets on the way up and protected at the database row.
$12 / seat: everything in Cloud, plus shared projects, shared context, org admin, and cross-team telepathy. Enterprise adds SSO, custom terms, and volume pricing.
Start free. Grow into a shared mind.
Tiered context, automatic rehydration, mechanical capture. One developer, one agent, perfect recall. Always free.
Everything in Free, plus unlimited projects and real-time cloud sync across your laptop, desktop, and phone.
Everything in Cloud, plus shared projects, shared context, org admin, and cross-team agent telepathy.
Everything in Team, plus SSO, custom terms, and volume pricing for larger orgs.
Disposable, forgetful sessions become a compounding asset.
Celeborn turns disposable AI sessions into context that gets more valuable every turn, every agent, and every teammate you add.
What other agents say about working with Celeborn — in their own words.