f59b326568
Mobile onboarding could reject valid large legal documents, stay busy after closing Android browser sign-in, and hide pairing-import errors behind the community-link form. This change bounds join-policy responses at 4 MiB while retaining 64 KiB for other responses, handles Android browser cancellation through the native lifecycle/channel, keeps Cancel sign-in usable, and shows friendly pairing errors on the landing screen with a live-region announcement. Identity mismatch checks remain intact. The browser-cancellation implementation incorporates the candidate from #8847 (`cb241b3f1`); coordinate landing to avoid duplicate work. This PR consolidates the three fixes exercised together during Android onboarding acceptance. ## Validation - Pixel 9 / Android 17, production hosted services, isolated debug installs. Human acceptance plus native UI, saved public-identity and restart checks as noted below. No iOS acceptance in this session. - Latest build and invite-first acceptance: base `a12ad1cdd29da8b2923eca5408e963a2659777ab` plus these patches. - Focused tests on that base plus patches: **88 passed** across hosted_journeys_test, hosted_admission_test, browser_auth_test, pairing_hosted_handoff_test and pairing_provider_test, with `BUZZ_AUTH_DOMAINS=communities.buzz.xyz`. - Earlier baseline: 81 focused cases passed plus one staging-configuration case passed separately (82 distinct cases across seven onboarding/recovery files); these are historical, not current-head certification. - Earlier policy change: 41 focused tests, changed-file analysis and isolated mutation check passed on the earlier base. Earlier browser candidate native instrumentation/mutation evidence was not rerun on this combined revision. - Android debug APK built and installed successfully. Mandatory commit/push hooks passed at `6442e5ff9`: analysis clean; mobile tests 4,047 passed / 34 skipped; additional package runs 4 and 27 passed; file-size checks passed. These broad tests ran through the required push hook, not a manually invoked suite. CI remains pending. ## Live testing report — October 31 | Journey | Result and evidence boundary | |---|---| | Fresh email signup / identity / hosted invite | Reproduced policy response exceeding 64 KiB; after fix, admission and restart passed. Profile/message visible locally; cross-account message receipt remains unproven. Tested at `cfcaef4e9f` plus policy patch. | | Browser close → retry → login → existing identity recovery → restart | Passed at `d14f33a170` plus patches; recovered the expected public identity and community. | | Pairing a different identity into an existing install | Rejected without replacing the original key. Initially hidden error became visible with friendly copy; Back and restart preserved the community at `b80217de3` plus patches. | | Fresh pairing → wait for desktop approval → sign-in → community → restart | Passed at `20742a236` plus patches; human confirmed approval gate, saved public identity matched. | | First-time desktop cancellation → welcome → fresh QR retry → community → restart | Passed at `20742a236` plus patches. Cancellation error remained raw `user_denied`. | | Android system Back while awaiting pairing approval | Human-confirmed in already-onboarded Add Community; first-time phone-side Back variation remains untested. | | Wrong pairing code → rejection → correction → completion | Human-confirmed at `a2540fbe3` plus patches. Exact error and same-session versus fresh-QR retry were not independently captured. | | Interrupt account onboarding at community picker → process restart → recovery → admission | Passed at `a2540fbe3` plus patches. Restart opened Add a community; Find my communities restored choices without another login. Human completed admission. No destination had yet been selected. | | Invite-first into fresh signed-out app → intended community → restart | Passed at `a12ad1cdd` plus patches; saved identity/destination matched. Existing member and existing browser session. Initial Android VIEW intent explicitly targeted the test package; ordinary HTTPS default app-link resolution and new-member admission remain untested. | | Malformed community input → error → Back → restart | Passed for `not a community`; original community preserved. `not-a-community` is a valid single-label hostname and was not counted as malformed-input evidence. | ## Remaining gaps and findings Not release certification. Pairing landing-error regression/mutation evidence is now recorded below. Current combined-revision native instrumentation has not been rerun; its limited scope is described below. Deferred behavior, not implemented here: - Wrong browser account after fresh pairing is correctly rejected, but Retry reuses that app account session; in-app account switching must preserve the transferred identity and destination. The live happy path used a manual browser-account switch and fresh install. - Pairing wait has no visible Cancel; tested system Back works. - Desktop cancellation exposes raw error wording. - Interrupted community selection requires an extra Find my communities step. Master checklist remains partial: seven categories exercised this session, signup/community creation has historical coverage, seven categories unexercised. New-member link-first admission, deeper interruption/server-commit recovery, expiry/revocation/network failures, key import, organization/self-hosted paths, phone-to-desktop transfer, eligibility gates, accessibility/app-link variants and iOS require separate coverage. Channel-discovery work is separate (#8869). ## Review checkpoint [Carl’s review](https://github.com/block/buzz/pull/8874#pullrequestreview-5724095754) found no code blockers at `6442e5ff9`. Carl also reviewed test-only follow-up `d43958653` and found no issues, accepting both validation gaps as closed. A subsequent review identified stale callback → resume cancelling a newer Android login. A narrow native fix and regression validation are in progress; prior readiness attestation is withdrawn pending this behavior change. - **Android stack check passed (Pixel 9, Android 17):** after fresh account sign-in, the human stopped at the community picker without closing/restarting. `dumpsys activity activities` showed exactly one MainActivity in Invite First task 567, with no CustomTab in that task or the full component list. ChromeTabbedActivity remained in a separate pre-existing browser task. This rules out a lingering duplicate activity in this run; it does not independently trace `onNewIntent` or establish all Android/browser variants. Binary production sources match `6442e5ff9`. - **Pairing regression/mutation passed:** extended the existing QR journey using the real encrypted NIP-AB import and hosted coordinator. Asserts visible friendly mismatch feedback, live-region wrapper, unchanged stored community/account identity, and Back to home. Reused the existing socket fake. Hosted journey + pairing provider files: 70 passed with configured auth domain; opt-out hosted journey file: 3 passed / 21 skipped; changed-file analysis clean. Isolated clone: control passed, hiding the landing error failed the visible text assertion, restoration passed. No production source change in this follow-up. - **Duplicate landing:** #8847 is superseded by this combined PR; its Android slice is included here. No merge performed. BrowserAuthPluginTest manually drives plugin hooks using an unmanaged Activity and fake browser launcher. It proves the plugin state machine only, not MainActivity wiring, real lifecycle order, process death, or duplicate app_links callback delivery. Current CI does not run Android instrumentation. Android ignores the debug ephemeral-login flag and shares browser cookies. Readiness checklist: agent review completed on production changes and test follow-up; agent exercised the changed behavior; human completed the documented Android journeys and final sign-in check. ## Stale callback follow-up (`b7aaaa788`) Addresses [the later Android lifecycle review](https://github.com/block/buzz/pull/8874#pullrequestreview-5724197312): a recognized callback now clears browser-dismissal tracking before rejecting a mismatched state. A stale callback cannot complete or cancel the newer login. The existing native journey now includes the intervening resume, successful current callback, and genuine browser dismissal after a stale callback. Only two native files changed; policy and pairing fixes are unchanged. Validation: 88 focused Dart tests passed. Android app and test APK build passed. On Pixel 9, the native plugin journey passed; in an isolated source/Git/build clone, removing the reset failed at the newer attempt's expected-zero-replies assertion; exact restoration passed. This proves the plugin state machine on Android, not a real late browser callback through OS lifecycle delivery. Carl reviewed `b7aaaa788` and found the fix correct and minimal with no blockers. Human browser-close/retry check remains pending; PR stays draft until that passes. Current-head CI is also required for merge. Accepted limitation: if a recognized stale callback arrives after the current browser tab has already gone, automatic dismissal is suppressed and the user may need the visible Cancel button. The callback cannot complete sign-in without matching state; Dart validation remains authoritative. --------- Signed-off-by: Wes <wesbillman@users.noreply.github.com> Co-authored-by: Brain <1a02c72794dcd0f07058a353bc3a81f4028b8c77c92c87fce6d5c8b85970a20b@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
Community
- Buzz feedback community — ask questions, share feedback, and connect with other Buzz users
- @buzzdotxyz on X — news and updates
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.