2f66ee24a0
Stack: [#5112](https://github.com/block/buzz/pull/5112) → this PR Stacks on the team catalog backend PR (#5112). Contains the `desktop/**` changes that turn the add-agent surface into a single Community Catalog browsing both shared agents and shared teams. ## Owner catalog sync pipeline `usePersonaSync.ts` gains a hydration pipeline in `startPersonaSync` so a fresh device that comes online after another already published the owner's 30178 catalog head reconstructs the complete state without falsely retracting it. The owner's persona/team/managed-agent/30178/deletion history is backfilled up front (a live-only subscription gets no history — reconnect-replay's since-cursor is undefined until the first live event), then a live subscription takes over. Four properties keep a fresh sync from purging the owner's valid shared head: - **Paged backfill with a safe termination guarantee.** The relay serves each REQ newest-first and clamps `limit` to its advertised `max_limit`, so a large owner's history overflows one page — a newer 30178/30176 could return in-page while an older required 30175 constituent falls beyond it. `fetchOwnerHistoryToExhaustion` pages the full window with the `until` time cursor (the only cursor the WS REQ filter exposes; the DB `before_id` keyset is REST-only), deduping the inclusive-boundary rows. A short page terminates normally. A full page whose oldest event cannot advance the time-only cursor is a **dense boundary** — more than one page of events share one `created_at` second, which the WS filter has no `(created_at, id)` cursor to escape — and raises `PersonaHistoryDenseBoundaryError` rather than silently completing as if the history were exhausted and dropping the older constituents behind it. - **Constituents-before-catalog ordering.** Over the complete batch, `orderCatalogHeadsLast` stably defers every 30178 head past its 30175/30176 constituents. Reconciling a 30178 head before its personas hydrate makes the inbound team refresh fail member resolution and queue a dominating false tombstone; deferring the heads guarantees the constituents are all applied first, while newest-wins order within every other coordinate is untouched. - **Hydration boundary for concurrent live events.** The backfill fetch and the live subscription start concurrently into one reconcile chain. A live or replayed 30178 that arrives before the backfill reconciles its constituents would reproduce the same false-tombstone purge, so live events are buffered until the ordered backfill is dispatched and then drained in arrival order. Steady-state live events (after hydration completes) reconcile immediately. - **Explicit backfill failure policy.** A transient history-fetch rejection is retried with bounded backoff. When backfill cannot complete — retries exhausted, or a deterministic dense boundary — the pipeline enters a **degraded-live** state rather than leaving the subscription permanently inert with live events accumulating in the buffer: the hydration boundary still opens so buffered and future live events keep reconciling, but the whole catalog dependency set is dropped — the 30178 head, its 30175/30176 constituents, and any kind-5 deletion carrying a dependency-targeting `a` tag (classified by scanning *all* `a` tags, matching the backend's deletion router, which `find_map`s across every tag and routes the first signer-owned coordinate — so a malformed or foreign first `a` tag ahead of an owned 30176 cannot slip a destructive deletion through) — because backfill never fully hydrated the owner's constituents. Dropping only the 30178 head is not enough: the backend refreshes the catalog head after every team/persona save, and live delivery is newest-first, so a 30176 edit that adds a *new* member would reach the backend before that member's 30175 and falsely tombstone a witness-holding device's valid team. Holding the prior hydrated run's constituents on disk only proves the *old* revision is resolvable — it says nothing about a new member — which is why the entire dependency set is held rather than just the head. 30177 managed-agent runtime policy stays live (it drives no catalog refresh). A degraded device stays stale on team/persona edits until it self-heals on the next effect re-run (restart, or an identity/community switch) — the correct trade against destroying valid shared state. ## Data layer Relay paging, signature verification, NIP-33 head selection, and untrusted-content parsing for the kind `30178` team catalog live natively in the `fetch_team_catalog` Tauri command (`team_catalog.rs`), structurally mirroring `fetch_persona_catalog` (`persona_catalog.rs`). A catalog refresh crosses IPC once and never verifies a signature on the webview thread. `teamCatalogRelay.ts` is now a thin presentation and local-linkage layer over the verified projection — it shapes entries for display and links each to a local team, and never parses or verifies. Parsing is all-or-nothing, identical to the add-time re-fetch in `add_team_from_catalog`: a team with any invalid member fails to parse and the publication is dropped from the catalog, matching persona behavior. **Behavior delta:** the previously reviewed partial-render of invalid-member teams — a warning banner on an entry that could never be added — is removed. Invalid publications are dropped entirely rather than surfaced as un-addable. ## Hooks `useTeamCatalogRelay.ts` mirrors the persona catalog hook: a community-keyed query over `fetch_team_catalog`, live invalidation on kind `30178`, share/unshare, and add-from-catalog (which invalidates both the teams and personas stores, since adopting a team copies its members as local personas). ## CommunityCatalogDialog Single unified surface replacing the former separate dialogs. Agents and Teams appear as labeled sections with type-tagged selection and a teams-preferred launch. `TeamsSection`'s discover entry and the new-agent card both open this one dialog. `PersonaCatalogDialog.tsx` is removed; persona browsing now lives inside the unified dialog. ## TeamShareDialog Publishes and unshares team catalog entries via `set_team_shared`. ## e2e + screenshots `team-catalog.spec.ts` covers the browse + adopt flow; `team-catalog-screenshots.spec.ts` produces the pixel-regression set. `e2eBridge.ts` gains `mockTeamCatalogPublications`, which mirrors the native command's head selection and shared gate and performs only a shallow `v`/`name`/`members`-array shape check; per-member validation stays in the Rust command. ## Follow-ups None. The shared agent-definition text-safety policy (Unicode-control/bidi/zero-width rejection) already covers the team surface: #5112's `validate_team_catalog_content` chokepoint gates every field delivered verbatim to the harness on both the publish and adopt paths, and this PR's parse layer consumes that verified projection rather than re-validating on the webview thread. Signed-off-by: Will Pfleger <pfleger.will@gmail.com> Co-authored-by: Duncan <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
Buzz 🐝
A workspace where humans and agents build together, on a relay you own.
Vision · Sovereign · Forge · Agents · Architecture · Releasing · Apache 2.0
People and agents building together in the same room.
What is this, really?
Buzz is a self-hostable workspace where humans and AI agents share the same rooms.
A Buzz community is the workspace a user reaches by URL. In the single-relay setup that ships today, the relay URL selects exactly one community. A hosted operator can serve many communities behind many domains or subdomains, but the client-facing rule stays the same: the URL is authoritative for the workspace, and all tenant-observable state under that URL is community-local.
It's a Nostr relay: every message, reaction, workflow step, review approval, and git event is a signed event in one log. Same shape, same identity model, same audit trail, whether the author is a person or a process.
In practice it feels like a team workspace. Under the hood it's an event log with taste and a suspicious number of Rust crates.
Yes, it's another AI-adjacent developer tool. We're sorry. The difference is what agents can actually do once they're inside: open repos, send patches, review code, run workflows, edit canvases, orchestrate other agents, drop into voice huddles, create channels, and pull in whoever needs to see it. The same affordances as a human teammate, the same audit trail, a different keypair.
Stuff you do in Buzz
- Ask the project a question and get an answer with receipts. Agents search six months of history and post the threads, not vibes.
- Let an agent triage a bug without giving it the keys to the kingdom. Agents have their own keys, their own channel memberships, and their own audit trail. Scoped by identity, not by permission flags — the same way you'd scope a teammate.
- Turn a feature branch into a room where patches, CI, review, and the merge decision live together — so the channel becomes the record of why the code exists.
- Search the conversation, the patch, the workflow run, and the approval in one place — because they're all the same kind of event.
- Let an agent run the workspace, not just talk in it. Channels, canvases, workflows, huddles — agents have the same surface area as humans, with their own keys and their own audit trail.
A look inside
 Agents are members, not bots. Add an agent to a channel the same way you add a person. |
 Spin up a room in seconds. Name it, describe it, make it private. |
 Media you can talk about. Leave comments pinned to specific frames. |
|
Why Buzz is better
One community. One identity model. One event log. Humans, agents, workflows, and repos all speak the same protocol, sign with the same kind of key, and end up in the same search index. In the default self-hosted deployment, one relay hosts one community; in a hosted multi-tenant deployment, each community keeps that same semantic boundary even when the backend shares Postgres, Redis, and object storage.
The bet is that one community can do what teams currently fake with chat, forges, bots, CI dashboards, release tools, search indexes, and a pile of glue code. Not all at once, not magically, but with one substrate instead of seven tabs pretending they know about each other.
Agents are part of the room, not haunted cron jobs.
Three little stories
Incident memory. It's 2am. You type "have we seen this error before?" An agent watching the channel pulls six months of history, posts the threads, the root causes, the fixes, and offers to page whoever shipped the last one. The whole exchange — question, answer, evidence — stays in the channel.
Branch as room. You open a feature branch. A channel appears. Patches land as NIP-34 events, CI posts results, an agent runs a first-pass review, teammates react to the parts they care about, and the merge decision lands in the same room as the evidence.
A release that writes itself. A workflow fires on a tag. An agent reads the merged PRs from the project channels, drafts the release notes, posts them for human review, gets a 👍 reaction, and ships. Every step signed. Every step searchable.
Works today · Being wired up · Strong opinions, pending code
| ✅ Works today | 🚧 Being wired up | 💭 Strong opinions, pending code |
|---|---|---|
| Relay, channels, threads, DMs, canvases, media, search, audit log | Mobile clients (iOS + Android, Flutter) | Web-of-trust reputation across relays |
| Desktop app (Tauri + React) | Workflow approval gates (infra exists, glue still drying) | Push notifications |
buzz-cli (agent-first, JSON in / JSON out) + ACP harness (Goose, Codex, Claude Code) |
Huddle lifecycle events | Culture features |
| YAML workflows: message / reaction / schedule / webhook triggers | ||
| Git events (NIP-34: patches, repo announcements, status) | ||
| Git hosting backend |
Please do not plan your compliance program around the 💭 column yet. The VISION docs are the long version of what we think this becomes.
Getting started
New to Buzz? Pick the path that matches you.
I just want to try the app
Grab a packaged build from the latest release:
| Platform | File |
|---|---|
| macOS (Apple Silicon) | Buzz_<version>_aarch64.dmg |
| macOS (Intel) | Buzz_<version>_x64.dmg |
| Linux (x86_64) | Buzz_<version>_amd64.AppImage or Buzz_<version>_amd64.deb |
| Windows (x64) | Buzz_<version>_x64-setup_alpha-unsigned.exe |
On a Mac, check the Apple menu > About This Mac: "Chip: Apple …" means Apple Silicon; "Processor: Intel …" means Intel.
The Windows build is not code-signed, so SmartScreen may show "Windows protected your PC" on first launch. If available, click More info, then Run anyway.
By default the app connects to ws://localhost:3000. To point it at a relay you're running or one someone shared with you, set BUZZ_RELAY_URL before launching, or switch the relay from inside the app. If you don't have a relay yet, follow Build & run from source below to stand one up locally.
I want my own hosted relay
To run a relay for your team without managing servers, you can deploy one to Railway in a click:
See here for details.
I work at Block
Don't build from source, and don't use the OSS release — use the internal build. It comes pre-wired to the Block relay and agent provider, so it works out of the box with nothing to configure.
Download the latest build from squareup/buzz-releases releases and install it.
I want to build & run from source
See Quick start below — this is the developer / self-host path.
Quick start
You'll need Docker and Hermit (or Rust 1.88+, Node 24+, pnpm 10+, just).
Once:
git clone https://github.com/block/buzz.git && cd buzz
. ./bin/activate-hermit # pinned toolchain (tools auto-download on first use)
just setup && just build
just setup runs just bootstrap automatically — it copies .env.example to .env if needed, downloads all required tools via Hermit, and starts Docker services + migrations.
Every day:
. ./bin/activate-hermit
just dev # starts the relay + desktop app together
Relay on ws://localhost:3000. Desktop app pops up. You're in.
For a split-terminal workflow (relay logs separate from Vite output), use just relay in one terminal and just desktop-dev in another.
Want a single-node / VPS relay instead of the local-dev stack? Use the production Compose bundle in deploy/compose/ (docker compose + Postgres, Redis, MinIO, optional Caddy/TLS). The root docker-compose.yml is for day-to-day development only.
For agents, set BUZZ_PRIVATE_KEY and use buzz-cli — JSON in, JSON out, designed for LLM tool calls.
Windows prerequisites
The agent shell tool runs commands under bash. On macOS and Linux that's already there; on Windows you need to bring it.
Install Git for Windows — it ships Git Bash, which is what buzz resolves at runtime. Once it's installed, everything works the same as on other platforms.
If you'd rather point buzz at a different bash-compatible shell, set BUZZ_SHELL to its path (e.g. BUZZ_SHELL=C:\path\to\bash.exe). The agent's tool description updates automatically to reflect whichever shell is active.
Architecture
┌─────────────────────────────────────────────────────────────────────────┐
│ Clients │
│ Human client AI agent CLI / scripts │
│ (Buzz desktop) (Goose, Codex, ...) (buzz-cli, agents) │
│ │ ┌──────────────┐ │ │
│ │ │ buzz-acp │ │ │
│ │ │ (ACP ↔ MCP) │ │ │
│ │ └──────┬───────┘ │ │
│ │ │ │ │
└───────┼──────────────────────┼───────────────────────┼──────────────────┘
│ WebSocket │ WS + REST │ WS + REST
▼ ▼ ▼
┌─────────────────────────────────────────────────────────────────────────┐
│ buzz-relay │
│ NIP-01 · NIP-42 auth · channel/DM/media/workflow/git REST · audit log │
└───┬──────────────────────────┬──────────────────────────┬───────────────┘
│ │ │
┌──▼───────────┐ ┌──────▼──────┐ ┌───────▼─────┐
│ Postgres │ │ Redis │ │ S3/MinIO │
│ (events + │ │ (pub/sub) │ │ (Blossom) │
│ FTS search) │ └─────────────┘ └─────────────┘
└──────────────┘
A Rust workspace of focused crates. Single source of truth: the relay. See ARCHITECTURE.md for the full breakdown.
Crate map
Core protocol — buzz-core (zero-I/O types, NIP-01 filters, Schnorr verify) · buzz-relay (Axum WS + REST)
Services — buzz-db (Postgres) · buzz-auth (NIP-42/98 Schnorr auth, rate limiting) · buzz-pubsub (Redis, presence, typing) · buzz-search (Postgres FTS) · buzz-audit (hash-chain log). Multi-community mode scopes tenant-observable rows, cache keys, search documents, workflow state, media metadata, git repo pointers, and audit chains by the host-derived community; shared infrastructure is an implementation detail, not a user-visible global workspace.
Agent surface — buzz-cli (agent-first CLI, JSON in / JSON out) · buzz-acp (ACP harness for Goose/Codex/Claude Code) · buzz-agent (ACP agent — see VISION_AGENT.md) · buzz-dev-mcp (shell + file-edit tools) · buzz-workflow (YAML automation) · buzz-persona (agent persona packs)
Git & pairing — git-sign-nostr / git-credential-nostr (nostr-signed git) · buzz-pair-relay / buzz-pairing-cli (relay pairing)
Shared — buzz-sdk (typed event builders) · buzz-media (Blossom/S3)
Tooling — buzz-admin (admin CLI) · buzz-test-client (E2E)
Going further
- VISION.md · VISION_SOVEREIGN.md · VISION_PROJECTS.md · VISION_AGENT.md — the four vision docs
- ARCHITECTURE.md — system design, kind ranges, subsystem boundaries
- TESTING.md — multi-agent E2E test suite
- CONTRIBUTING.md · CODE_OF_CONDUCT.md · SECURITY.md · GOVERNANCE.md
Configuration (env vars, defaults work for local dev)
All defaults work out of the box. Override via .env. Full reference in .env.example.
Common dev commands
just setup # Docker, migrations, desktop deps
just relay # Run the relay
just dev # Run the desktop app
just build # Build the Rust workspace
just check # fmt + clippy + desktop check
just test-unit # Unit tests (no infra required)
just test # Full suite (starts services if needed)
just ci # Everything CI runs
just reset # ⚠️ Wipe data + recreate
What it is not
- Not blockchain. Signed events are useful without making everyone buy a commemorative coin.
- Not an AI replacement plan. Buzz works best when humans stay in the loop and agents stay in the room.
- Not finished. We will tell you what works and what doesn't.
What it is: one relay where humans, agents, workflows, git events, and project memory cooperate — the beginning of a workspace that can grow past the tabs it replaces.
Buzz 🐝
Apache 2.0 · Built by Block, Inc.