6410e685a8
Implements NIP-FI HTTP ingress enforcement per the merged spec (PR #7254). Every protected HTTP surface in enforce mode requires a valid `Nostr-Federated-Identity: Bearer <JWS>` assertion alongside its NIP-98 authorization, bound to the same key. The NIP-98 pubkey (proven actor) must equal the assertion's `nostr_pubkey`; absent, mismatched, or unverifiable assertions are denied fail-closed with byte-exact text/plain responses per the spec's rejection table. This is S5 of the `buzz-enterprise-identity` program. WS enforcement (S3) is separate. ## What changed **New `nip_fi_http` module:** `admit_nip_fi_http()` covers the full admission sequence — `Nostr-Federated-Identity` extraction, offline JWKS verification, NIP-98 key pairing [FI-INV-05], issuer-qualified deny-map check via `(iss, pubkey, now)` [FI-INV-14], and byte-exact denial for all four `DenialClass` variants. `admit_nip_fi_http_on_state()` is the single call-site wrapper for all surfaces [FI-TRACE-AUTHORITY-UNIFORM]. **Protected surfaces** (all gated via the uniform authority): - HTTP bridge: `POST /events`, `/query`, `/count` - GIF proxy: `POST /gifs/search`, `/gifs/share` - Workflow reads: `GET /workflows/{id}/runs`, `GET /workflows/{id}/runs/{id}/approvals` - Moderation reads: `GET /moderation/reports`, `/moderation/audit`, `/moderation/restricted` - Media/Blossom: `PUT /upload`, `/media/upload` - Git smart-HTTP: `info/refs`, `upload-pack`, `receive-pack` - Git settings control plane: `GET`/`POST /git/:owner/:repo/default-branch` (now routed through `admit_nip_fi_http_on_state` for full assertion key-pairing) - Invites: `POST /api/invites` (mint only; claim exempt as pre-membership enrollment door) **NIP-98 strictness in NIP-FI mode:** - When NIP-FI is not Off, bridge POST handlers force `require_auth_token = true` — the `X-Pubkey` dev-mode fallback cannot satisfy the pairing requirement [NIP-FI.md:547-567] - POST bodies on `/events`, `/query`, `/count` require a matching `payload` tag in enforce mode [NIP-FI.md:579-597] - A payload tag present with no content (one-element `["payload"]` or empty string) is rejected as a structurally invalid claim — NIP-98 requires the content to be a valid 64-char lowercase hex SHA-256 digest. Malformed payload diagnostics use a static error message (no attacker-controlled content in logs). - Off mode preserves pre-NIP-FI behavior per [FI-INV-15] **Off-mode compatibility changes:** Admission now runs before request validation on every protected surface, so Off mode differs from pre-NIP-FI behavior in these ways: - **GIF routes:** NIP-98 authentication happens before the upstream provider lookup. An unauthenticated request on a tenant with no GIF provider now returns 401 instead of 404. The 401 goes through the legacy `api_error()` path, so the body is JSON `{"error":"..."}` with no `WWW-Authenticate` header. - **Workflow runs** (`GET /workflows/{id}/runs`): the query string is parsed after admission. A request with a missing credential and a malformed query (for example `?limit=abc`) now returns 401 instead of 400. - **Authorized malformed query:** once admitted, a malformed query returns a JSON 400 `{"error":"invalid query: ..."}` from `parse_query_or_400` instead of axum's `text/plain` `Query` rejection. - **Moderation reads** (`/moderation/reports`, `/moderation/audit`): same extraction change as workflow runs. Admission comes first, then a JSON 400 for a malformed query. - **Malformed `payload` tag:** shared NIP-98 verification now rejects a malformed `payload` tag in every mode, including on bodyless requests. That means a one-element `["payload"]`, an empty digest, or anything other than 64 lowercase hex characters. Before this change, a bodyless request ignored the tag. **Auth header cardinality:** Enforce mode rejects requests with more than one `Authorization` header with 403 `evidence rejected\n`. DenyProtected returns 503 `authorization unavailable\n` before this check (and before NIP-98 or assertion verification) runs. The cardinality gate is enforced at the NIP-FI admission boundary (`admit_nip_fi_http`), not via legacy auth boolean flags, so it applies uniformly to all Enforce-mode surfaces including Git. Off mode passes through the first header value unchanged, preserving pre-NIP-FI behavior [FI-INV-15]. **Denial-class remapping:** In Enforce mode, NIP-98 extraction/verification failures from the closure are mapped to the appropriate `DenialClass`: `MissingEvidence` when no `Authorization` header is present, `EvidenceRejected` when the header is present but invalid. Off mode propagates legacy responses unchanged [FI-INV-15]; for example, the Git missing-Authorization and wrong-scheme 401s keep their legacy bytes with no `content-type` header. **JWKS refresh scheduling:** The refresh timer's `*last` checkpoint is set after the fetch completes, not from the pre-fetch timestamp, preventing interval drift under network latency. The loop is extracted to `nip_fi_jwks_refresh_loop` for unit-testability. **Log hygiene [NIP-FI.md:777-779]:** Issuer identity is never written to logs or error messages. All startup/refresh diagnostics use an ordinal index (`issuer_index = N`). Config parse errors for malformed issuers use classify()/line/column codes rather than raw config values. **Admin SPA document routes:** `/reports`, `/reports/{id}`, and `/feedback` are exempt from the NIP-FI assertion guard only on the admin host (host-qualified via `is_admin_host`). These paths are not added to the broad `NIP_FI_EXEMPT_PREFIXES` list — tenant hosts remain fully protected. **Deny-map seam (`HttpDenyMap` trait):** signature is `(issuer, pubkey, now)` matching `NipFiDenyMap::is_denied` from S4 (PR #7265) so integration is a one-liner. Stub is `AlwaysAdmitStubDenyMap` — named to accurately describe stub-phase semantics (fail-open intentionally pending S4). **Route inventory:** every authenticated HTTP route is classified as Protected or Exempt with justification. Documented in the F4 seam-test comment in `bridge.rs`. **Outer-guard tests:** `#[ignore = "requires Postgres"]` tests in `bridge.rs` drive the full router (`build_router`) in Enforce mode with valid NIP-98 but no `Nostr-Federated-Identity` header. These exercise the **outer `nip_fi_assertion_guard` middleware** in `router.rs` — the layer that fires before any handler runs. They prove the guard's exact response bytes (401 `authentication required\n`, `text/plain; charset=utf-8`, `WWW-Authenticate: Nostr`) for each protected route. Per-handler `admit_nip_fi_http_on_state` wiring is proven separately by the cardinality test and the media/settings/git handler-level suites. ## Seams **S3 seam:** `nip_fi_config.rs` is duplicated (S3 not landed; session-deadline parts stripped). Removed when S5 rebases onto S3. **S4 seam:** `AlwaysAdmitStubDenyMap` until S4 provides the real map. Integration is one line at the `admit_nip_fi_http_on_state` wrapper. ## Evidence At head `ee338ea9c` (branch `hayt/nip-fi-http-enforcement`), hosted CI run [36167450853](https://github.com/block/buzz/actions/runs/36167450853): - **Rust / Unit Tests** ([job 108179338458](https://github.com/block/buzz/actions/runs/36167450853/job/108179338458)): passed. The `buzz-relay` `test-unit` step ran 171 tests with 171 passes. Its PASS lines include all 57 non-ignored tests this PR adds to the relay: `nip_fi_http::tests` (25), `nip_fi_config::tests` (8), `router::tests` (8), `api::parse_query_tests` (5), `api::transport::off_mode_precedence_tests` (5), `tests::jwks_refresh_*` (3), and `composition_tests` (3). The same job ran the `buzz-auth` suite, which includes `nip_fi::jwks::tests::key_set_serves_live_snapshot_under_reader_and_refresh_overlap`. - **Rust / Rust Lint**: passed. - **Relay and PostgreSQL / Backend Integration (relay e2e)**: passed. - **PostgreSQL Domain / PostgreSQL Tests** ([job 108183303436](https://github.com/block/buzz/actions/runs/36167450853/job/108183303436)): passed. 542 tests run, 542 passed. --------- Signed-off-by: Will Pfleger <pfleger.will@gmail.com> Signed-off-by: Hayt <9e1c23a3fd83f61da34420e4e88ff1b16e45cafcc0cd9019eb07d4ecfa8ca9b0@buzz.block.builderlab.xyz> Signed-off-by: Hayt <211b96e6a2b7f45fd4047988976c7bbbeeda0c15f3ae7b32eec20834b5a55118@buzz.block.builderlab.xyz> Co-authored-by: Hayt <9e1c23a3fd83f61da34420e4e88ff1b16e45cafcc0cd9019eb07d4ecfa8ca9b0@buzz.block.builderlab.xyz> Co-authored-by: Hayt <211b96e6a2b7f45fd4047988976c7bbbeeda0c15f3ae7b32eec20834b5a55118@buzz.block.builderlab.xyz> 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.