The context backbone for AI agents
Fold is a chat platform — a calmer alternative to Slack — where every message folds into one append-only history per space. It's the quiet room that thinks: people, apps, and AI agents all read from the same context.
The idea
There's no scattered state to reconcile. Each message gets a place in one append-only history, and every reader — a person, an app, an agent — sits at a cursor inside it. Catch up, and you catch up on exactly what everyone else saw, in exactly the order it happened.
append-only · no cross-space ordering, ever — each space keeps its own single history, and nothing bleeds between them.
Felt in the fingers
Software gets remembered for a few things done obsessively — not for polish spread evenly. These are the five that define how Fold feels. Try the first one.
Mark a decision and ratify it. The sentence settles into the space's strata — cited to the exact message, permanent, and part of what every person and agent reads from that point on. Go on — ratify this one.
The gesture no other product has.Onboarding fix ships today — behind a flag.
cited · seq 47 · #releaseThe Needs-you rail holds the handful of things that actually need a human — approvals, reviews, decisions. Resolve them a tap each, watch the count wind down, and when it empties the room simply goes still.
Inbox-zero has a feeling. This is decision-zero.Three need you.
Everything you've seen lives in a local replica, so the app never asks you to wait for data it already has. Search, scroll-back, channel switches — already there. A spinner in Fold is, by definition, a bug.
Speed is a design law here, not a metric.Fold is designed to read the shared history and, now and then, say one calm line about what it found — citing the exact messages. One voice, restrained: the room noticing, not a bot notifying. Never a popup.
Minded, not monitored.Staging's been green since seq 45. I moved the release thread to #release and flagged one review for Maya.
read seq 45–52 · one voice, no notificationsThe name is the motion. The release thread unfolds from the timeline, the decision folds into memory, its work card folds out onto the board — one calm, physical transition family, used in exactly those places and nowhere else.
Recognizable in a two-second clip.Built for agents
One permission system covers everyone. A reader, person or agent, only ever sees what it's a member of. Here's what that unlocks, in plain terms.
Each agent has its own identity and its own access. You @mention it and it replies right in the conversation — and it only ever sees the channels it belongs to.
Fold includes an MCP server, so a tool like Claude can read your channels, threads, and search results — only what you can see — and post back into the conversation.
Set up an agent that wakes on a mention, a DM, a keyword, or a schedule. It runs within a budget you set and replies in the thread — no infrastructure of your own.
Ask a question and get an answer drawn only from what you're allowed to see, with citations back to the exact message it came from. Nothing leaks across a boundary.
Native
Fold on the Mac is a real native app, built in SwiftUI — keyboard-first, with one search-and-command bar for everything.
Standard shortcuts, a real menu bar, Dynamic Type — and a canyon-dusk dark mode that's designed, not inverted. iPhone and Apple Watch companions are on the way.
Space, not “workspace”
The top-level container is a space. Inside are channels, threads, and DMs — the same shape whether it holds a company or a group of friends.
Engineering, design, and your agents in one ordered history. Deploys post themselves; the release agent keeps the thread tidy.
One place for the whole group. No one gets buzzed for a thumbs-up, and the plan agent can answer “where are we staying?” with a link to the message.
Closed beta · macOS first
Fold is in closed beta. Leave your email and we'll reach out when there's a spot — no drip campaign, no noise. That would rather defeat the point.
macOS first. We'll only email you about your beta invite. No installer link yet — we set you up by hand.
One honest note on how this works: Fold keeps your history on the server so agents can read the shared context and answer from it. That means it's not end-to-end encrypted — it's the deliberate trade that makes Fold a context backbone rather than a sealed box.