Commit Graph

401 Commits

Author SHA1 Message Date
Matt Toohey
fa9acdf7d9 fix(mobile): allow relay-sized join policy responses
Mobile read GET /api/join-policy through the generic 64 KiB hosted
response cap, but the relay allows each policy markdown document up to
256 KiB and Desktop accepts a 4 MiB policy response. A self-hosted
relay with a valid policy over 64 KiB was joinable on Desktop but
failed on Mobile with an invalid-response error before consent could
render, and every retry hit the same cap.

boundedHttpResponse and readJoinResponse now take a maxBytes that
defaults to the existing 64 KiB hostedResponseMaxBytes. Only
loadJoinPolicy opts into the 4 MiB cap that matches Desktop, so the
accept-policy, claim, and other hosted replies keep their limit. The
reader accumulates into a BytesBuilder so a multi-MiB body is not held
as a list of ints.

The invite consent journey now serves a policy over 64 KiB and
asserts that Mobile loads its full terms and claims only after native
acceptance. The hosted-admission "oversized policy" row used bare
whitespace, which failed as invalid JSON whatever the cap was. It now
sends valid JSON padded past 4 MiB. A focused test serves a relay-sized
policy alongside an accept-policy reply over 64 KiB: the policy reaches
consent, the reply is rejected, and no claim is sent.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Matt Toohey <contact@matttoohey.com>
2026-11-04 14:56:40 +11:00
Matt Toohey
4ec7b8f0eb fix(mobile): show invite sheet while join policy loads
The deep-link dispatcher awaits InviteJoinNotifier.prepare before it
presents the invite sheet, and prepare awaited GET /api/join-policy.
On a slow or blackholed relay, opening an invite did nothing visible
until discovery finished or hit the 30 s request deadline.

prepare now returns once the pending invite and host are established
and loads the policy in the background. A new isLoadingJoinPolicy
state renders a "Loading community policy…" row (the spinner owns the
announcement) and keeps Join disabled until the policy is shown or
confirmed absent. A per-load token fences the result: a re-prepare,
reset, or claim supersedes the load, so a stale success or failure
cannot overwrite a claim that confirmJoin started, e.g. from the iOS
native sheet. confirmJoin still re-reads the policy before it claims.

The dispatcher gains a table with a suspended /api/join-policy
response. Both rows assert that the host, an enabled Cancel, the
loading row, and a disabled Join are visible before the GET resolves,
with no claim. The policy row then claims once with the app-minted
receipt after age confirmation and acceptance. The absent row claims
once without a receipt after Join. The provider claim journey now
claims while discovery is still suspended, then fails that discovery
and asserts the join stays successful.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Matt Toohey <contact@matttoohey.com>
2026-11-04 14:56:39 +11:00
Matt Toohey
9c9b8fdd74 fix(invites): collect native consent for app invite handoff
Co-authored-by: Jitter <d14dfe033ef0f809866f9f984de04821b0d900d7652fd85a54776ee40ca3a68f@buzz.block.builderlab.xyz>
Signed-off-by: Matt Toohey <contact@matttoohey.com>
2026-11-04 14:56:38 +11:00
Daniel Rouleau
ba7d7825ea fix(mobile): show organization sign-in after pairing (#9028)
## Summary

Show organization sign-in after pairing. The community chooser closes
before it waits for content when the organization session needs sign-in.
A long press on **Scan a QR code** reveals the pairing-code option.

### Related issue

Related to [#9001](https://github.com/block/buzz/pull/9001) and
[#9009](https://github.com/block/buzz/pull/9009). No duplicate PR found.

### Testing

On an iPhone 17 Pro simulator, paired with the Block relay using a build
that includes both related PRs. The app showed **Sign in** on Home.
Completing sign-in remains to be verified.

![Organization sign-in prompt after
pairing](https://github.com/user-attachments/assets/c8286fc6-9de1-42db-973d-985a48e3351b)

Generated with Codex

Signed-off-by: Daniel Rouleau <drouleau@squareup.com>
Co-authored-by: Zerra <345e287bf58aae2b5a483f744e2e362b7f7eea918b4c4427f7a1b3494881d475@buzz.block.builderlab.xyz>
2026-11-03 19:42:48 -08:00
Daniel Rouleau
14037e3278 fix(mobile): show progress after pairing QR scans (#9009)
## Summary

After a pairing QR scan, the app shows connection progress until code
entry or a connection error. A WebSocket handshake that remains pending
stops after ten seconds. Cancel is available until storage starts. It
resets pairing and restores the entry form. Pasted codes remain
available after an error or cancellation. Back navigation stays blocked
during identity transfer and storage. Cancel on Send identity to desktop
returns to Settings, so another attempt starts through the authorization
step.

### Related issue

Related to [#9001](https://github.com/block/buzz/pull/9001), which
covers organization sign-in after identity transfer. This change covers
the earlier connection stage.

### Testing

A simulator build with PR #9001 completes identity transfer and saves
the community. The community chooser still blocks organization sign-in.
[PR #9028](https://github.com/block/buzz/pull/9028) covers that step.
Physical iPhone testing and successful real-relay checks in light and
dark mode remain pending. On a build with this change, scan a desktop
pairing QR code. Check that progress appears, Cancel returns to the
entry form, and a fresh attempt reaches code entry. Paste a pairing
code, cancel during connection, and check that the form keeps the code.
Test a failed connection and retry. In Settings, open Send identity to
desktop, start a recovery connection, and cancel. Check that Settings
appears and another attempt asks for authorization. Camera recognition
speed and the reported intermittent phone network failure remain
unverified.

Generated with Codex

---------

Signed-off-by: Daniel Rouleau <drouleau@squareup.com>
Co-authored-by: Sol <c35e7cc95f6fdbfb7e861dccc02bdca567b6d6b20f16b5115c3c6ae082bbeede@buzz.block.builderlab.xyz>
2026-11-03 19:12:57 -08:00
Logan Johnson
1055f79d04 fix(mobile): show a taken channel name plainly and keep invites working (#8807)
## Summary

The relay is starting to refuse a new open channel when another channel
in the community already has that name
(https://github.com/block/buzz/pull/8782). Mobile handled that refusal
badly in two places:

- **Creating a channel with a taken name** showed raw error text:
`Exception: invalid: an open channel named "Launch" already exists`. The
create sheet now shows `An open channel named "Launch" already exists`
and stays open, so the user can pick another name.
- **Joining a community by invite could fail.** After an invite join,
the app joins two starter channels, `#general` and `#welcome-everyone`,
and creates either one if it can't find it. If an archived channel or a
forum already holds one of those names, the relay now refuses the
create, and the whole join failed. Now the app skips a starter whose
name is held by a channel it can't use, and the join succeeds. If the
holder is a live channel the app didn't see at first, the app joins that
channel.

Screenshots from an Android emulator against a local relay built from
https://github.com/block/buzz/pull/8782 are in the Testing section.

## Details

- **Error text.** A new `relayErrorMessage` helper
(`lib/shared/relay/relay_closed_policy.dart`) removes the `Exception: `
wrapper and the relay's machine prefix (`invalid:`, `blocked:`,
`duplicate:` and the other standard prefixes), then capitalizes the
first letter. Only the create sheet uses it. The other error paths are
unchanged.
- **Starter channels** (`ensureStarterChannels` in `lib/app.dart`).
After a taken-name refusal, the app reloads the channel list and looks
for the channel that holds the name:
  - A live open stream with that name: join it.
- An archived channel or a forum: skip that starter. An archived channel
can't be joined, and a forum is the wrong type for a starter.
- No visible holder: fail as before. The setup stays retryable, because
the holder may not be visible yet.
- **Which channel counts as the holder.** Only a channel that can hold
the name under the relay's rule counts: open, not unlisted, a stream or
forum. Channels now carry the relay's "unlisted" flag for this. An
unlisted channel with the same name (for example, an unlisted forum the
user is in) doesn't hold the name, so the app doesn't skip the starter
because of it.
- **A starter that was archived.** Desktop and mobile create each
starter at the same fixed id. When the starter at that id is archived,
the relay refuses a new create there with `invalid: channel is
archived`. The app treats that as an archived starter and skips it,
unless a live channel with the name exists. When the relay answers
`duplicate` and the reload doesn't show the channel, the app reads the
channel at the fixed id and skips the starter only if that channel is
archived.
- If `#welcome-everyone` is skipped, the join opens no particular
channel. Both callers already handle that.

### Related issue

None found. Client side of https://github.com/block/buzz/pull/8782.

### Testing

Android emulator, debug build of 778a4cada, local relay built from
https://github.com/block/buzz/pull/8782 at 0df245e3c, fresh database:

**Invite join while an archived `general` holds the name.** The app
skipped `general`, created `#welcome-everyone` at its starter id and
joined it. The archived `general` did not change, and no new `general`
was created.

![Invite join lands on
#welcome-everyone](https://raw.githubusercontent.com/block/buzz/ba7989fc9596b70ce950b391c7f5279d9353abbb/pr-8807--01-invite-skips-archived-general.png)

**Create a channel with a taken name.** `ops` is live. Creating `OPS`
shows the relay's refusal as plain text, and the sheet stays open.

![Create sheet shows the taken-name
refusal](https://raw.githubusercontent.com/block/buzz/ba7989fc9596b70ce950b391c7f5279d9353abbb/pr-8807--02-create-sheet-taken-name.png)

Automated tests: `invite_join_provider_test.dart` has a table row for
each holder case above (archived, forum, unlisted, appears late,
archived at the fixed id for both relay answers), plus the scope fences.
`channels_page_test.dart` covers the sheet text, and
`relay_closed_policy_test.dart` covers the helper. Each new skip fails
its row when it is removed. `just mobile-check` and `just mobile-test`
pass.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 21:39:47 -05:00
Tom Brow
38a5d9a1ff mobile: tap the settings version footer to copy it (#9021)
## Summary

The version line at the bottom of mobile Settings (for example `v0.27.0
(36)`) couldn't be copied, which made it awkward to paste into bug
reports. Tapping it now copies the whole string and shows a "Version
copied" toast, matching the existing "Copy public key" row. It's
keyboard-focusable and has a 48dp tap target. Partial selection isn't
supported; it's whole-string only.

![Settings after tapping the version: a Version copied
toast](https://github.com/user-attachments/assets/007a10ed-61e5-47a2-b0a3-1f09f522e565)

### Related issue

N/A

### Validation

- Added test: tapping the footer, or reaching it with Tab and pressing
Enter, puts `v0.16.0 (432)` on the clipboard and shows the toast. The
test also checks that the tap target is at least 48dp tall.
- `just mobile-check` and `just mobile-test` pass.
- Automated simulator run (debug build, iOS 27): opened Settings, tapped
the version, confirmed via `simctl pbpaste` that the clipboard held the
exact footer text and the toast appeared; then confirmed the neighboring
"Copy public key" row still copies the npub and Settings still closes.
Human testing waived per the mobile testing exception. A full recording
was posted in Buzz instead of here because it shows internal channel
names.

🤖 Generated with [Claude Code](https://claude.com/claude-code)



buzz-review-completed

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 18:39:44 -08:00
Spencer Lewis
83d0bd3203 fix(mobile): stop QR pairing to organization relays from hanging (#9001)
## Problem

Pairing a phone to an organization relay by QR (for example Block's
`buzz.block.builderlab.xyz`) never finishes. After the codes match and
the phone confirms, it sits on the loading surface. About 2 minutes
later it returns to the welcome screen with "Lost connection to pairing
relay." The desktop stays on "Finishing pairing on your phone…". This
reproduces every time on Buzz 0.27.0, iOS 27.2, with desktop 0.7.7
(internal tracking: AIDA-2420).

There are two causes:

1. **Validation can never pass for organization relays.** After the
payload arrives, `_validateCredentials` opens a plain `RelaySocket`
without a `Nostr-Federated-Identity` assertion. Organization relays
refuse that upgrade with HTTP 401 until organization sign-in, which a
freshly pairing phone hasn't done.
2. **The failure hangs instead of erroring.** `RelaySocket.connect()`
catches the failed `ready` but keeps `_channel`. The validator's
`finally` then awaits `disconnect()` → `sink.close()` on a channel that
never opened, and that never completes. The phone waits until the
pairing relay's 120 s connection cap closes the socket, and
`_handleDisconnected` reports that as a lost connection.

Standalone repro with `web_socket_channel` 3.0.3 against the real relay:

```
ready failed: ... was not upgraded to websocket, HTTP status code: 401
sink.close() DID NOT COMPLETE within 30s (hang)
```

## Change

- `RelaySocket.connect()` drops a channel whose upgrade failed.
- `disconnect()` waits at most `RelaySocket.closeTimeout` (2 s). An
upgrade that is still pending (connect timeout 10 s) can outlive
pairing's 8 s validation deadline, and its close never completes either.
- `PairingNotifier` skips the pre-sign-in check for
`OrganizationEnvironment.protects` relays. Admission is left to the
saved community's session and the existing organization sign-in banner,
which matches how the hosted branch already defers admission. The
predicate is injectable (`organizationRelay`) for tests. Other relays
are still validated before saving.

Trade-off: an identity that the organization relay would reject is now
saved, and that rejection only surfaces after organization sign-in. The
hosted path has the same property.

## Related issue

No existing GitHub issue covers this failure; searched open issues and
PRs for pairing relay, lost connection and `_validateCredentials`.
Closest:

- #8043 / #8060 cover the same `_validateCredentials` path from the
other side: a failed connect currently returns normally. They're
complementary. With #8060 merged, organization relays would fail pairing
with an explicit 401 instead of hanging, and this PR keeps them out of
that pre-check. Whichever merges second needs a small rebase in
`_validateCredentials`.
- #3181 is a different failure in the same flow.

## Testing

- New `relay_socket_liveness_test` cases check that `disconnect()`
completes in three situations: after a refused (401) upgrade, after a
timed-out handshake, and while the upgrade is still pending.
- New `pairing_provider_test` case: a malformed key is rejected locally
before anything is saved, an organization relay is saved without the
relay check, and a non-organization relay is still validated and
rejected.
- Each new test fails with its fix removed. The failures were
"disconnect() hung on a channel that never opened", "disconnect() hung
on a pending upgrade", and `validated` being true.
- `just mobile-check` and `just mobile-test` pass: 4229 passed, 40
skipped.
- **Simulator run (iOS 27.0 simulator, iPhone 18 Pro, Block organization
dart-defines) against desktop 0.7.7 on `buzz.block.builderlab.xyz`:**
pairing completed (desktop reported the phone paired; identity
transferred; community saved) instead of hanging until the pairing relay
closed. The app then showed the organization sign-in banner and opened
browser sign-in for block.builderlab.xyz, as expected. Okta in the
simulator requires FastPass, so the final relay connection after sign-in
was not exercised there.
- Human device testing is still pending.

## Follow-up

- Test on a real phone with an organization build. The simulator
couldn't complete Okta FastPass, so the relay connection after
organization sign-in still needs checking.

---------

Signed-off-by: Spencer Lewis <slewis@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 17:17:15 -08:00
Tom Brow
1bef1da77d fix(mobile): show newly created remote agents in the new-chat picker (#9030)
After creating a remote agent on mobile (for example in onboarding), the
agent doesn't appear in the Solo **New chat** agent picker. Mentioning
it in a channel, or restarting the app, works around this.

The picker's agent list (`meAssistantsProvider`) is loaded once and kept
for the app session. Creating a remote agent publishes its owner
registration (kind 30177), and Beekeeper publishes the agent's attested
profile, but nothing told the cached list to reload. So the new agent
stayed missing until something unrelated (a relay reconnect or an app
restart) rebuilt the list.

With this change, the list reloads whenever this device publishes or
removes a remote agent registration, using the controller's existing
`registrationRevision`. Agents created on another device still show up
only after the next reload, as before.

### Validation

- Added test: `Solo agent choices reload after this device creates an
agent` (hosted build) creates an agent through the real
`RemoteAgentController.create` path and checks that the picker's list
includes it. It fails without the fix (list stays empty) and passes with
it.
- Full mobile suite passes, and so do the hosted-build `shared`,
`features/agents` and `features/channels/me` suites. Analyzer and format
are clean.
- Automated simulator pass on the fixed build (signed in to a
Builderlab-hosted community): opened **New chat**, the picker listed all
7 agents, picked one, opened an existing Solo chat and the Agents page,
then reopened the picker and it still loaded correctly. Human testing is
waived per the repository's mobile testing exception.
- Limitation: I didn't create a real remote agent on the simulator,
because its Builderlab web sign-in stalled. The create → picker path is
covered by the added test.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 17:04:07 -08:00
Tom Brow
9f88eb9c45 mobile: hide self-joins and leaves, collapse membership runs like desktop (#8962)
Busy channels fill the mobile timeline with page after page of small "X
joined the channel along with Y and N others" and "X added Y to the
channel" rows. Desktop now hides most of that
([buzz-app#2258](https://github.com/block/buzz-app/pull/2258)). This
brings mobile's membership notices in line with desktop's current rules
(`membershipRows` / `membershipDescription` in buzz-app
`src/features/messages/membership-rows.ts`).

### Behavior

- **Only explicit changes show.** Self-joins and voluntary leaves are
hidden. That covers both relay leave shapes: a normal Leave (kind 9022,
actor only) and removing yourself (kind 9001, with a target). Additions
by someone else and removals still show.
- **One row per run.** Each uninterrupted run of additions and removals
becomes one row, whatever the elapsed time, local day or actor. Messages
and other channel events (topic, archive, huddles) still split runs.
- **Each person appears once**, under their latest change in the run.
- **Wording:**
- One adder: "Alice added Bob, Carol and N others to the channel. See
all" (unchanged)
  - One remover: "Alice removed Bob ... from the channel" (unchanged)
- Several adders: "Bob, Carol and N others were added to the channel".
It no longer says they "joined".
- Additions and removals together, or several removers: "Bob and 4
others were added · Dan was removed". Each "N others" opens that list.

Mobile keeps its "See all" sheet in place of desktop's hover popover.

### Validation

- Added tests:
  - unit tests for hiding self-joins and both leave shapes
  - grouping across hours, days and actors
  - runs split by messages and other channel events
- a channel page journey with a self-join, a 9022 leave, a 9001 leave,
additions by two people hours apart and a removal: it renders one mixed
row, and the "1 other" sheet works
  - a several-adders wording test
- Updated tests that previously relied on visible self-joins or leaves.
- Full mobile suite (`just mobile-test`) and `flutter analyze` pass.
- Automated full-app run on an iPhone 17 Pro simulator, signed in to a
hosted community:
- The home list and a 33-member channel with membership history load.
Self-joins are gone, messages flow without them, and a two-adder run
reads "X and Y were added to the channel".
- Scrolling back through history and opening and closing a thread work.
  - Captures are not attached because they show internal names.
- Limitation: the internal community now rejects the simulator's
websocket without hosted sign-in, so the 1,500-member channel wasn't
re-checked on this head.
- Human testing is waived per the owner's standing policy.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
2026-11-03 15:50:33 -08:00
Tyler
dafe31bfe5 feat(mobile): persist frontier-only NIP-RS read state across devices and restarts (#8998) 2026-11-03 18:10:28 -05:00
klopez4212
8312419652 fix(mobile): size reply labels correctly with Bold Text (#9013)
System Bold Text made single-participant reply labels such as “12
replies” wrap or truncate: the handoff measured normal-weight glyphs,
then rendered bold glyphs inside that narrower box. Resolve the
inherited text style and platform bold override before measuring, and
use that same style for rendering.

Addresses the fix-before-merge blocker identified by [Tom's agent on
#8987](https://github.com/block/buzz/pull/8987#issuecomment-6611883349),
specifically [the Bold Text
finding](https://github.com/block/buzz/pull/8987#discussion_r4458491084).
Tom classified unloaded-root typing, legacy reply-only paging, and
working-state label clipping as acceptable later follow-ups; those
remain outside this patch.

Validation:
- Regression loads the bundled Inter font (the default test font masks
weight differences), toggles Bold Text off/on/off, and covers
idle/working footers at 1x/2x scale. All four cases failed before the
production fix.
- Formatting and full analysis passed; 4,252 Flutter tests passed (44
skipped), plus 4 unconfigured-push tests. All 27 crypto tests passed.
Mandatory push hooks passed.
- Self-review found no blockers in this narrow change.

Draft pending app/human verification required by AGENTS.md. To verify:
enable system Bold Text, open a channel with a single-participant
thread, and confirm “12 replies” remains complete; repeat with enlarged
text and toggle Bold Text off. No physical-device validation is claimed.

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Co-authored-by: Terp <5856f6900e8e0a4e0ea1f4f8d2ee33e4753d2119bc122f94ecafc660b46c0511@buzz.block.builderlab.xyz>
2026-11-03 14:10:44 -08:00
morgmart
c24b0f472e Open the new Bestie's chat after creating it (#8972)
Stacked on #8957 (Kenny's Bestie onboarding).

In #8957, tapping the empty Bestie slot opens Create agent, and saving a
first agent makes it Bestie, but you land back on home and need a second
tap to start talking. This takes you straight into the new Bestie's chat
once creation finishes, which matches where the group DM landed: pick a
name and avatar first, then you're chatting with it.

- Creating a first agent from the empty slot opens its chat.
- Cancelling, or creating an agent that doesn't become Bestie (you
already own others), still returns home as before.
- The slot stays disabled while the create flow is open, so a double tap
during the account check can't open it twice.
- Opening an existing Bestie is unchanged; that code just moved into a
shared step.

Validation: new widget test covers both the create and cancel paths, and
it fails without the change. The mobile widget tests touched by the
launcher pass (508), and `flutter analyze` is clean on the changed
files.

Not yet checked: creating an agent on a real device. #8957's recording
also stops before submit, so the real create → chat handoff (including
how long the new agent takes to appear) still needs a device run.

---------

Signed-off-by: morgmart <98432065+morgmart@users.noreply.github.com>
Signed-off-by: kenny lopez <klopez4212@gmail.com>
Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Carl <carl@agents.local>
Co-authored-by: kenny lopez <klopez4212@gmail.com>
Co-authored-by: Terp <5856f6900e8e0a4e0ea1f4f8d2ee33e4753d2119bc122f94ecafc660b46c0511@buzz.block.builderlab.xyz>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Morgarita <6e967af659416160ab4f2fd56d74c8c6f273791ee7bfc9468a1be37c387947be@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 12:59:20 -08:00
Tom Brow
bf13f7c83b fix(ios): mint NIP-FI assertions in the notification extension (#8982)
Organization relays that enforce NIP-FI (federated identity) require a
`Nostr-Federated-Identity` assertion on `/query`. The iOS notification
service extension signed its `/query` with NIP-98 only, so the relay
answered `401` and every push from an enforcing organization relay
showed the generic "You have a new message." body.

The app already mints these assertions in Dart from its organization
account session, but that session lives in the app's own keychain, and
assertions last minutes, so a cached one is useless by the time a push
arrives. This change lets the extension mint its own:

- **App:** whenever the organization `BuilderlabAccountClient` adopts or
clears its session, the app writes or deletes a device-only keychain
item in the group it already shares with the extension. The item holds
the organization origin, the session credential and the organization's
exact relay hosts (from `BUZZ_ORGANIZATION_RELAYS`). Builds without an
organization never write it.
- **Extension:** for a community whose relay host is one of those exact
hosts, `BuzzRelayAssertionIssuer` requests an assertion from the
organization issuer (`/api/goose/v1/buzz/identity/assertions`, session
credential plus NIP-98 with the community's account key, the same
request the app makes), checks it was issued for that key, and caches it
in-process until 30 seconds before expiry. Both `/query` paths (message
lookup and sender/channel enrichment) send it. Other relays get no
header and never see the session.
- Signing out awaits removal of the shared copy and fails if removal
fails; each restore that finds no session retries the removal.
- If issuance fails or the user is signed out, the extension sends the
query without the header and the relay refuses it, which keeps today's
generic fallback.

Not covered here: relay-hosted avatars on enforcing relays still load
without the assertion (the notification text and title are unaffected),
hosted Builderlab communities, and Android.

### Validation

Added tests:
- `testOrganizationRelayQueriesCarryMintedAssertion`: against a stub
relay that answers `401` without the assertion, two organization pushes
resolve with message body and sender name from a single issuance, a
non-organization relay gets neither the header nor the session, and
after sign-out the notification falls back. Removing the header from the
query path makes this test fail.
- `testOrganizationAssertionIssuanceFailuresSendNoHeader`: refused,
wrong-key, expired and header-injection responses produce no header.
Subdomains and other ports of the organization relay host are never sent
the session.
- `builderlab_account_test.dart`: the shared copy follows exchange,
restore and clear; a failed removal fails sign-out, and the next restore
retries it.

Focused existing validation: the full BuzzPushKit suite, the hosted Dart
tests, `flutter analyze`, and an iOS device build of the app and
extension.

Not yet validated: a live push from the Block relay on a device.

## Before merge

Live device push test: waived by Tom (2026-11-03).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 19:01:42 +00:00
Tom Brow
40fe4b5d9a perf(mobile): evict verified-profile interest in one pass (#9007)
## Summary

Follow-up to [#8931](https://github.com/block/buzz/pull/8931), from
Wes's [review
note](https://github.com/block/buzz/pull/8931#discussion_r4456891410).

[#8931](https://github.com/block/buzz/pull/8931) replaced the
per-eviction scan in `VerifiedProfilesNotifier.track` with `keys.first`.
That was much cheaper than main, but not constant time: removing from a
Dart map leaves deleted slots, and each new `keys` iterator walks past
them. One `track` call that overflows the 1,024-subject cap by E
subjects still costs about E²/2 slot checks. Wes measured ~3 ms at 4,300
subjects, 62 ms at 8,600 and 205 ms at 17,200.

Eviction now takes the overflow from a single iteration
(`keys.take(overflow).toList()`), so it's linear. Which subjects are
kept doesn't change: still the 1,024 most recently inserted.

The [#8931](https://github.com/block/buzz/pull/8931) eviction test
counted keys yielded by the map, which `keys.first` keeps at one per
eviction, so it couldn't fail on the quadratic path. It now counts
iterations started over the interest map and expects exactly one per
`track` call. Main's scan and the merged `keys.first` loop both start
one per eviction.

### Testing
- Falsification: with the merged `keys.first` loop restored, the new
test fails (`Expected: <1>, Actual: <3276>`). With this change it
passes.
- `flutter test test/shared/verified_profiles/`: 31 passed. The existing
"keeps the 1,024 most recently tracked subjects" journey still passes,
so retention is unchanged.
- `just mobile-check`: clean.
- `just mobile-test`: 4,227 Flutter tests passed, 40 skipped, plus 4
push and 27 crypto tests.
- Automated app run: installed this build on an iOS 27 simulator (iPhone
17 Pro) signed in to a Builderlab community, opened the inbox, a channel
timeline with images and the image viewer, and the channel details
member list, which all track verified-profile subjects. No errors. That
community is small (30 members), so the overflow path itself is covered
by the unit tests, not the app run.

- Agent review: an independent agent review found no blockers.
- Human test: waived under the mobile testing exception; the automated
app run above replaces it.

Not covered: Android, and no new device profile (Wes's AOT numbers above
are the cost model; this removes the E² term).

buzz-review-completed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 10:32:56 -08:00
John Matthew Tennant
33eaa73c83 fix(mobile): let users sign out after leaving all communities (#8993)
## Summary
Fixes a dead-end in signed-in mobile onboarding: after leaving every
community, Back kept returning to the same Add a community screen
without a way to end the account session.

Show “Signed in as [email]” on that screen. Back asks “Sign out of
BuilderLab?” with the email; Cancel keeps the session, and Sign out
returns to the welcome screen while retaining saved Buzz identities.
Nested Back and Add community from an existing session keep their
navigation behavior.

### Related issue
None found in the existing issue and PR search for onboarding sign-out.

### Testing
The new widget journey failed before the change and passes through the
real onboarding widgets, account client, storage and flow with external
HTTP/browser boundaries mocked. It covers nested Back, Cancel, system
Back, durable session removal, retained identity/backup, and starting
email sign-in again. The existing hosted onboarding journey also covers
accounts without an email.

On iPhone 18 Pro simulator (iOS 27), rendered the production onboarding
screen and native confirmation using a disposable account fixture. Live
browser account selection has not been verified; this clears the app
session, not website cookies.

To reproduce on an auth-enabled mobile build: sign in, leave all
communities, check the displayed email, tap Back, and choose Cancel. Tap
Back again and choose Sign out. The yellow welcome screen should appear,
with email sign-in available.

## Screenshots

Before, from the original reported phone screen:

<img
src="https://raw.githubusercontent.com/block/buzz/07440b3b10c3f48a6fd19c923f2ee5ba66d574f0/pr-8993--before.png"
alt="Before: account state not shown" width="300">

After:

Signed-in landing and native sign-out confirmation, using a disposable
account:

<img
src="https://raw.githubusercontent.com/block/buzz/a4e18c85bc3a19d971b08ff595ba6b081c67e20f/pr-8993--landing.png"
alt="Signed-in landing" width="300"> <img
src="https://raw.githubusercontent.com/block/buzz/a4e18c85bc3a19d971b08ff595ba6b081c67e20f/pr-8993--confirmation.png"
alt="Sign-out confirmation" width="300">

---------

Signed-off-by: Aaron <f425b86c3b780d43f8d9cf1802429d04dd985bf92eac44fca9468b5ad3887c5e@buzz.block.builderlab.xyz>
Signed-off-by: John Tennant <jtennant@squareup.com>
Co-authored-by: Aaron <f425b86c3b780d43f8d9cf1802429d04dd985bf92eac44fca9468b5ad3887c5e@buzz.block.builderlab.xyz>
2026-11-03 18:25:54 +00:00
klopez4212
3f03aa0450 fix(mobile): restore ordinary DM behavior for Bestie (#8987)
Mobile Bestie used a special flat timeline that hid reply threads. It
now opens the normal DM screen, matching desktop’s pinned Bestie
(block/buzz-app#1935), with existing threads, reply actions, and
top-level sending in the same conversation.

Thread-scoped agent typing in DMs stays beneath its originating message.
Working avatars and mobile’s bouncing dots share a compact neutral
container, matching desktop’s subtle activity control. The elbow is
visible from the start, with the working container already at the final
thread-footer position. For a single-agent reply, the same avatar stays
mounted while the container and dots fade out over 200 ms, the avatar
slides into its summary position, and the reply count fades/scales in
from 95%. The elbow stays fixed. Reduced motion switches immediately.
The avatar-to-dots gap is 4 points. Reply text uses its natural line
height so its glyphs center on the avatar and elbow rather than drawing
at the top of the footer. Multi-participant summaries retain their
grouped layout. The accessible View thread action, reaction placement,
and final reply-footer position are preserved.

Validation:
- The final commit (`c6fef5d80`) passed full analysis, 4,220 Flutter
tests (40 skipped), 4 push-configuration tests, and 27 crypto tests.
- Container alignment checks pass in both directions, including avatar
continuity, intermediate fade and final geometry, reduced motion, and
thread actions. Glyph-box alignment is checked against the avatar
center. An additional regression covers a reply arriving before typing
stops and work restarting mid-transition.
- Updated DM journeys cover opening Bestie, existing threads, threaded
and top-level sending, swipe-to-reply, and absence of duplicate main-row
thread typing.
- Installed the final product source (`c6fef5d80`) in place on Pixel 10
and iPhone Air previews. The iPhone uses a release-mode preview so it
launches from the home screen; saved Kenny Lopez / Starry Night
conversation verified after install. Pixel retains Testing Agent
Sessions. The pending/midpoint/completed handoff was rendered in widget
checks, and the corrected reply-label alignment was verified on the
Pixel against the same messages before and after; human acceptance of
this final animation remains pending.
- Mandatory push hooks passed, including file-size and branch checks. A
rendered widget preview verifies the container and elbow; live
acceptance remains pending.

Self-review found no blockers in the changed paths. Review status is
preserved.

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Co-authored-by: Terp <5856f6900e8e0a4e0ea1f4f8d2ee33e4753d2119bc122f94ecafc660b46c0511@buzz.block.builderlab.xyz>
2026-11-03 18:16:14 +00:00
klopez4212
a66cb5f7ab Modernize mobile channel and DM creation sheets (#8942)
Modernizes New Channel and New DM with full-height forms and X/Create or
X/checkmark actions. iOS uses UIKit sheets throughout; Android uses the
Flutter fallback. Channel menus default to Ongoing/Public, and native
menu previews lift only the trailing value while labels stay fixed.

Channel names disable automatic capitalization, autocorrect, and
spellcheck; both platforms use descriptive placeholders.

Preserves recipient search and limits, creation error retries, and
navigation after native dismissal.

Validation: 4,154 mobile tests passed (38 skipped), auxiliary suites and
static checks passed; iOS device/simulator and Android builds passed.
Exercised menus, dismissal, DM search and selection in the simulator and
Android form behavior on Pixel; iPhone UI tested and approved by the
author.

| iOS native form (Simulator) | Android Flutter form (Pixel) |
| --- | --- |
| ![Native iOS channel
form](https://github.com/user-attachments/assets/a3ee78c9-510d-488c-979e-64fa3bded686)
| ![Android channel
form](https://github.com/user-attachments/assets/a2d65f1c-752c-4cef-b659-2b396cbbbcc9)
|

Native menu with the left label fixed:

![Native value-only menu
preview](https://github.com/user-attachments/assets/c4fe8659-e46c-409f-b866-c9568b26ccc1)

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Co-authored-by: Terp <5856f6900e8e0a4e0ea1f4f8d2ee33e4753d2119bc122f94ecafc660b46c0511@buzz.block.builderlab.xyz>
2026-11-03 18:11:15 +00:00
klopez4212
344f007f36 Add mobile Bestie onboarding and fix remote agent presence (#8957)
An empty Bestie slot cycles still posters from Fuzzies, Gloopies and
Figgies every five seconds, without creating video players. The next
poster is precached; reduced motion and hidden-screen pauses are
preserved. The launcher uses the neutral “Bestie” label until a
selection is available, then “Chat with …”.

For supported communities with no owned agents, tapping opens Create
agent directly. A successful first-agent setup saves that agent as
Bestie without replacing an existing preference; existing-agent and
unsupported-community paths keep the Agents list.

Verified Builderlab registrations can show sleeping remote agents as
Online. Owner-scoped saved runtime availability now prevents a known
absent or deleted runtime from returning Online after Builderlab
sign-out or a fresh load, even when another community retains its
registration.

Validation: mobile static checks; 4,274 Flutter tests passed with hosted
flows enabled; launcher → cancel → create → Home “Chat with Scout”,
including encrypted persisted selection; sign-out, fresh-load, owner
isolation and deletion regressions. Restoring the old carousel produced
three video-player requests; removing the saved-availability guard
reproduced incorrect Online after sign-out.

The earlier iPhone recording below shows the original carousel and entry
flow and stops before creation. The new poster-only behavior and
completed creation are covered by widget tests, not a new device
recording.


https://github.com/user-attachments/assets/94fcff72-967a-44c2-99d5-27c715e196a2

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Co-authored-by: Terp <5856f6900e8e0a4e0ea1f4f8d2ee33e4753d2119bc122f94ecafc660b46c0511@buzz.block.builderlab.xyz>
2026-11-03 18:10:28 +00:00
Tom Brow
0e5a69962e perf(mobile): evict verified-profile interest in constant time (#8931)
## Summary

`VerifiedProfilesNotifier.track` trims its interest map to 1,024
subjects, but it finds the oldest subject by scanning every entry, once
per eviction.

Opening #announcements (4,302 members) evicts about 3,300 subjects,
which is roughly 3.4 million comparisons. On a 12 mini Profile build
that was 316 ms of main thread, inside the channel's 134 to 167 ms
opening frames. It runs whether or not the relay serves verified
profiles, so it also affects the prod Block community.

A subject's interest is set once, on insertion (`??=`), so the map's
insertion order is interest order. The oldest subject is therefore
`keys.first`, and eviction is constant time. Which subjects are kept
does not change.

### Related issue
None found.

### Testing
- New `verified_profile_directory_test.dart` case: tracking 4,300
subjects keeps exactly the 1,024 most recently tracked ones, and
tracking a subject again does not refresh its age. This test checks that
behavior is preserved, and it passes on main too. The speedup comes from
removing the per-eviction scan, which the device CPU profile attributed.
- `just mobile-check` passes. `flutter test
test/shared/verified_profiles/` passes (30 tests). The pre-push hook ran
the mobile unit tests.
- Device (12 mini, Profile build, opening #announcements, first 5 s;
runs not matched): `VerifiedProfilesNotifier.track` inclusive CPU 316 ms
before, 14 ms after. Opening frames of 134 to 141 ms remain, mostly the
channel name scope (follow-up).

Not covered: a human test (waived under the mobile testing exception),
Android. Separately, the 1,024 cap still churns subscriptions for
rosters larger than that. This PR doesn't change that design.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 09:16:43 -08:00
Tom Brow
58eb36dd57 perf(mobile): cheaper identity-name rebuilds for large rosters (#8936)
## Summary

Every identity-name source change (a profile batch, a verified name)
rebuilds a channel's naming scope over its whole member list. In a
4,000-member channel, each rebuild derived every key's naming fact more
than once: owner loading and resolution each derived it, and so did each
label for a key outside the scope. It also checked every key against a
regular expression several times, and iOS AOT builds run regular
expressions in an interpreter.

- `IdentityNames` derives each key's naming fact once per scope.
- `isHexPubkey`: a character-loop hex check, used by the identity-name
code instead of the regular expressions.

Labels are unchanged.

## Measurements

These were taken with an earlier version of this PR that also cached
npub encoding. That cache was removed to keep the change small, so the
remaining gain is smaller than shown. I haven't re-measured it.

- **Synthetic** (Mac, `flutter test`, 4,391 members, 60% with profiles;
scope, `missingOwnerProfiles` and every label for each new sources
object): a warm rebuild took 63 ms before and 12 ms with the cache. The
first rebuild took 120 ms before and 91 ms with the cache.
- **Device** (iPhone 12 mini, Profile build, first 5 s after opening
#announcements with 4,391 members; runs not matched):
`channelIdentityNamesProvider` plus `watchChannelIdentityLabel`
inclusive CPU was 148 ms before and 81 ms with the cache. Of that,
`fullNpub` (npub encoding, the cached part) went from 62 ms to 22 ms.
The identity path no longer calls `RegExp.hasMatch`.

## Testing

- A new test counts profile lookups. Owner loading, every label and an
outside key read each member's profile once. Without the memo, each is
read 3 times.
- New `isHexPubkey` tests cover both cases, wrong lengths, characters
just outside each range, and a bad character at every position.
- `just mobile-check mobile-test` passes.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 08:00:41 -08:00
Tom Brow
369e1ef322 perf(mobile): stop re-parsing message markdown on every rebuild (#8928)
## Context

Each message in a channel shows its text as Markdown. The `GptMarkdown`
widget parses that text. Parsing is slow for long messages.

`GptMarkdownTheme` gives Markdown colours and styles to the widgets
below it. When it gets a new theme data object, it tells all
`GptMarkdown` widgets below it to parse their text again. It compares
the old and new objects by identity, because `GptMarkdownThemeData` has
no value equality. Thus a new object with the same values also causes a
parse.

## Problem

Two widgets made a new theme data object on each build:
- `MessageContent` made one for each message bubble.
- `AppMarkdownTheme` made one for the full app.

Thus each rebuild parsed all messages on the screen again. Many events
cause a rebuild: a batch of profiles, a read marker, a keyboard frame.
In a large channel such as #4things (1,235 members), these events occur
almost all the time.

## Change

- `MessageContent` keeps its bubble theme until one of its inputs
changes. The inputs are: the app Markdown theme, the link colour, own or
other message, the ink colour and `onSurface`.
- `AppMarkdownTheme` makes new theme data only when `ThemeData` changes
or when an outer Markdown theme changes.

A change of colour, of brightness, or of own or other message still
makes new theme data. Then the Markdown parses again with the new
colours. This is correct.

### Related issue

None found.

## Testing

- New regression tests fail on main. They pass on this branch.
- `message_content_stability_test.dart`: When a bubble rebuilds with the
same inputs, it keeps the same theme object and the same parsed
`TextSpan`. The test does this for own messages and for other messages.
When own or other changes, the bubble gets a new theme.
- `app_markdown_theme_test.dart`: The app keeps one theme object when it
rebuilds. It makes a new one when light or dark mode changes.
- `just mobile-install mobile-check mobile-test` passes.
- Device test: iPhone 12 mini, Profile build, Tom's Block community,
open #4things. The two runs had different live traffic and different
cached content. Thus they show the cause and the fix. They do not give a
controlled speed measurement.
- Before: In the first 2.4 s, parses from rebuilds (`performRebuild`)
used approximately 90 ms. One frame used 116 ms. Approximately 48 ms of
that frame parsed visible messages again.
- After: In 30 s, rebuilds caused no parses. Only the first build of
each message (`_firstBuild`) parsed.
- An independent agent review found no defects. It found one small item:
`ChatColors` has no value equality. Thus a rebuild of `MaterialApp`
still makes new app theme data one time. This costs only a little
performance. We did not change it.

Not tested: A human test did not occur. The mobile testing exception
waives it, and an agent did the device test. No test occurred on an
Android device.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 08:00:33 -08:00
Tom Brow
eee75a1c7b perf(mobile): verify owned-agent registrations natively (#8938)
## Summary

`loadOwnedAgentDirectory` checks the signature of each kind:30177 agent
registration before it trusts the registration's `model`. It did this
with `nostr.Event.fromJson`, which runs the `nostr` package's pure-Dart
Schnorr code on the UI isolate.

This change uses `verifiedNostrEventFromJson`, which the app's other
verification sites already use. It makes the same timestamp, event id
and BIP-340 signature checks with the bundled libsecp256k1. It also
requires lowercase hex for the pubkey and signature, which relay events
already use.

A registration that fails verification still lists its agent without a
model, as before.

## Measurements

- **Synthetic** (Mac, `flutter test`, 20 signed registrations, warm):
pure Dart 163 ms, native 2.6 ms.
- **Device** (iPhone 12 mini, Profile build, first channel open after
launch, first 5 s; runs not matched): `loadOwnedAgentDirectory`
inclusive CPU was 71 ms before (69 ms in `Event._assertValid`) and 2 ms
after.

## Testing

- New test: a registration with a wrong signature still lists the agent,
with no model. The correctly signed registration keeps its model.
- `just mobile-check mobile-test` passes (pre-push hook).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 08:00:26 -08:00
Tom Brow
cad7f1d53d perf(mobile): build composer channel names once per channel list (#8943)
## Summary

`_useComposerChannelNames` ran on every `ComposeBar` build. Each time it
built a lowercase-name to id map over every channel and joined every
entry into a string key, only so a `useEffect` could skip calling
`setChannelNames`. The composer rebuilds on every keystroke and keyboard
animation frame.

This memoizes the map and key on the channel list instance. The effect
is still gated on the content key, so an equal new list still doesn't
call `setChannelNames` again.

## Measurements

iPhone 12 mini, Profile build, Builderlab, raising the composer keyboard
in #4things: `_useComposerChannelNames` was 26 of 31 `ComposeBar.build`
CPU samples (about 26 ms of UI work across the 600 ms raise).

Limitation: I haven't re-measured on the device after the change. The
removal is shown by the test below.

## Testing

- New test: rebuilding the composer 5 times (keyboard insets and typing)
with the same channel list doesn't iterate the list again. It fails with
the change reverted (8 iterations instead of 3).
- New test: changing the channel list still updates the composer's
channel chips.
- `just mobile-check mobile-test` passes (pre-push hook).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 08:00:19 -08:00
Tom Brow
fc9e652c0e perf(mobile): format a channel timeline only when its events change (#8929)
## Summary

The channel page ran `formatTimeline` on every build. The page also
rebuilds for changes unrelated to messages: read state, presence, the
roster, keyboard and layout. `formatTimeline` walks every loaded event
and JSON-decodes each system row.

In #4things (1,235 members, mostly join rows), on a 12 mini Profile
build:
- 58 ms of main thread over 21 idle seconds.
- About 11 ms per frame while the keyboard animated.

The messages notifiers publish a new list for every event change, so
this memoizes the result on that list, the current pubkey, and the forum
flag.

`buildMainTimelineEntries` and the relay thread summaries it reads stay
outside the memo. A summary-only update that republishes the same list
still shows up.

### Related issue
None found.

### Testing
- Updated `loading_review_tests.dart`: unrelated page rebuilds now
format the timeline 0 times, where main formats once per rebuild (the
test fails on main). A new live event formats exactly once, and its
message appears.
- `just mobile-install mobile-check mobile-test` passes.
- Device (12 mini, Profile build with this change, #4things idle). Runs
are not matched, so this shows the mechanism, not a controlled speedup.
  - Before: 58 ms over 21 s.
  - After: 7 ms over 18 s, all from real event changes.
- An independent agent review found no defects. It checked that
`formatTimeline` reads only its arguments, that every publish path
creates a new list or republishes unchanged events, and that nothing
downstream mutates the shared result.

Not covered: a human test (waived under the mobile testing exception;
this was an agent-driven device run), and Android.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 08:00:11 -08:00
Tom Brow
76bc66acfc mobile: hold a queued list read for the 10s gap (#8958)
## Summary

Follow-up to [#8910](https://github.com/block/buzz/pull/8910) for the
two optional notes from its review:

- **A queued list read now waits out the 10s gap**
([note](https://github.com/block/buzz/pull/8910#discussion_r4447689472)).
If a change comes due while a slow read is still running, the read is
queued. When the slow read finished, the queued one used to start right
away, even if the gap after the previous read hadn't passed. That broke
the "reads start at least 10s apart" rule: a read could start 9s after
the one before. The queue now drains through `_readListIfChanged`, which
holds the read until the gap ends. If the finished read already covered
the change, nothing is read.
- **A test for a partly failed unread catch-up**
([note](https://github.com/block/buzz/pull/8910#discussion_r4447689485)).
Previously, deleting the line that retries a catch-up when only some
channels' fallback reads failed left the suite passing.

### Related issue

N/A. Follow-up to [#8910](https://github.com/block/buzz/pull/8910).

### Testing

- New step in the open-list journey: the relay answers each of a read's
two queries in 7s. A change that comes due while that read runs is read
once, after the gap, not as soon as the slow read ends. Restoring the
old drain fails the step.
- New step in the resume journey: after a reconnect, the batched
catch-up fails over to per-channel reads, and one channel's read is
refused. That channel turns unread on the retry, and nothing more is
read over the next 10 minutes. Removing the partial-failure retry fails
the step.
- `FakeRelay.holdQuery()` holds HTTP queries, so a test can make a read
slow.
- The full mobile suite passes, and `dart format` and `flutter analyze`
are clean.
- This is a timing-only change to background list reads, with no UI
change. The journeys above drive the real notifiers against a fake
relay. I did no device run.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-03 07:01:07 -08:00
John Matthew Tennant
972e89ac89 fix(mobile): allow community removal without a cached push grant (#8978)
## Summary

Fix community removal failing with “Expected exactly one endpoint grant
for push lease revocation” when saved push state exists but the current
build has no cached grant, including builds without a push gateway.

When the community has a saved installation ID, journal its targeted
revocation without requiring the grant. An unknown grant expiry stays
unknown: retain cleanup credentials until the relay accepts the
revocation. Existing known-expiry cleanup and legacy grant-based
addressing remain unchanged.

### Related issue

No matching open issue found. Follows [the durable revocation
outbox](https://github.com/block/buzz/pull/8706).

### Testing

The new regression fails with the reported error on the preceding
implementation. It now verifies missing-grant enqueue, offline retry,
persistence across restart, the exact lease address and eventual cleanup
after acceptance. On a physical iPhone with the fix applied to the
onboarding test build, the previously failing community removal
succeeded.

Unknown-expiry records retain their signing key in secure storage until
successful revocation. Downgrading to a client that requires an integer
expiry will reject those pending records.

Signed-off-by: John Tennant <jtennant@squareup.com>
Co-authored-by: Aaron <f425b86c3b780d43f8d9cf1802429d04dd985bf92eac44fca9468b5ad3887c5e@buzz.block.builderlab.xyz>
2026-11-02 18:46:49 -08:00
John Matthew Tennant
09b21cbe63 fix(mobile): label community switching consistently (#8979)
## Summary

Rename the mobile community menu action from **Switch workspace** to
**Switch community**, matching the Switch Community page it opens and
avoiding confusion with billing workspaces.

### Related issue

N/A. No duplicate found.

### Testing

The existing home-page widget journey opens the community menu and
verifies the new label. Before/after captures show the production
Flutter menu with disposable fixture data.

## Screenshots

### Before

![Community menu
before](https://raw.githubusercontent.com/block/buzz/c587b7ce64b8e6d46604a29ff0d22d2cae3bd7ba/pr-8979--BEFORE.png)

### After

![Community menu
after](https://raw.githubusercontent.com/block/buzz/c587b7ce64b8e6d46604a29ff0d22d2cae3bd7ba/pr-8979--AFTER.png)

Signed-off-by: John Tennant <jtennant@squareup.com>
Co-authored-by: Aaron <f425b86c3b780d43f8d9cf1802429d04dd985bf92eac44fca9468b5ad3887c5e@buzz.block.builderlab.xyz>
2026-11-02 18:46:42 -08:00
John Matthew Tennant
6684f7e2f0 fix(mobile): make the Join button readable in dark mode (#8969)
## Summary

After scanning or pasting a community invite in dark mode, the native
Join button can display white text on a white background. This fix
passes the theme’s foreground color to native confirmation and applies
it alongside the button’s background color.

### Related issue

Related invite handoff: https://github.com/block/buzz/pull/8601.

### Testing

A widget regression checks the foreground and background colors sent to
native confirmation. The isolated PR build shows readable black Join
text on the white native button in dark mode.

### Screenshots

Before (consent-only build `3d566de`):

![Join label invisible in dark
mode](https://raw.githubusercontent.com/block/buzz/e12a750a31badc9e2a95a18c277b33968c7ec1f5/pr-8969--DARK_JOIN_BEFORE.png)

After (this PR):

![Readable Join label in dark
mode](https://raw.githubusercontent.com/block/buzz/e12a750a31badc9e2a95a18c277b33968c7ec1f5/pr-8969--DARK_JOIN_AFTER.png)

Signed-off-by: John Tennant <jtennant@block.xyz>
Signed-off-by: John Tennant <jtennant@squareup.com>
Co-authored-by: Zack <04f47b290b155b3b8b782b11501cdb15f1e21e82dfceefd01ff0ed405459d927@buzz.block.builderlab.xyz>
Co-authored-by: Aaron <f425b86c3b780d43f8d9cf1802429d04dd985bf92eac44fca9468b5ad3887c5e@buzz.block.builderlab.xyz>
2026-11-02 18:46:36 -08:00
John Matthew Tennant
205ff47744 fix(mobile): retry failed channel searches after reconnecting (#8968)
## Summary

Searching while disconnected leaves “Open channel search couldn't
finish” visible after the connection returns. Users must change the
query or tap Retry channels to recover.

This fix automatically retries the open-channel directory search when
the relay reconnects, using the current query. It does not rerun message
search or explain the separate onboarding setup failure.

### Related issue

None found.

### Testing

The widget regression searches while disconnected, reconnects without
typing, and checks that the error clears and an unjoined open channel
appears. It fails on main and passes with this fix.

On the iOS simulator at this PR head, restarting the local relay cleared
the error within about five seconds without changing the query; the
unjoined channel remained listed.

### Screenshots

Relay down: the error shows under the cached channel.

![Relay down: open channel search
error](https://github.com/user-attachments/assets/9014735e-2743-444a-aa77-7d9d2126f8b3)

Relay back, same query, no typing: the error is gone and the unjoined
channel stays listed.

![After reconnect: error
cleared](https://github.com/user-attachments/assets/beed543f-a6a4-4e88-aae1-3c061bb016b2)

---------

Signed-off-by: John Matthew Tennant <jtennant@squareup.com>
Co-authored-by: Simone <0828be588d5c9c4d092c5b1cf01761d5aef63d6b104807fd8e8284d517dd1a99@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 20:29:13 -05:00
John Matthew Tennant
cdd2af1a35 fix(mobile): let starter setup retry after a connection failure (#8967)
## Summary

After joining a community, “Retry setup” can keep failing until Buzz
restarts because it reuses an earlier connection error. A previously
successful wait can also let a retry proceed while disconnected.

Each setup attempt now waits for the current relay connection, retaining
the community check and 15-second timeout. This fixes retry recovery;
the original reported setup failure remains unexplained.

### Related issue

None found.

### Testing

Two provider regressions fail on main and pass with this fix: retry
after an interrupted wait, and retry after a previously connected
session disconnects.

In an iOS simulator comparison with an injected first-wait error, the
old build failed every retry. The fixed build completed setup and
displayed both starter channels without restarting. This proves recovery
from the injected error, not the original failure. Reconnect timing
after a previously successful wait is covered by the provider regression
only.

## Screenshots

iOS simulator against a local relay, running head 5a95f8a85 plus an
uncommitted first-wait failure injection (the injection fails only the
first connection wait).

### First attempt fails and offers Retry setup

![First attempt fails and offers Retry
setup](https://github.com/user-attachments/assets/09256e06-e73d-4f9b-9225-75c8e03b21a5)

### Retry completes and shows both starter channels

![Retry completes and shows both starter
channels](https://github.com/user-attachments/assets/b31e4b0e-0a07-4b8b-b55d-8a1ca4608bda)

Signed-off-by: John Tennant <jtennant@squareup.com>
Co-authored-by: Damon <8a08290d889f1c68921542bfe9631d4cd671be9bea5f1114951f386819e4c10a@buzz.block.builderlab.xyz>
2026-11-02 20:27:31 -05:00
John Matthew Tennant
0ec74838a5 fix(mobile): open consent for scanned and pasted invites (#8952)
## Summary

Scanning or pasting a valid community invite can show “approval has
expired” before the user has reviewed the community’s requirements. This
fix opens browser consent, preserves the joining identity, and resumes
joining when approval returns. If the browser cannot open, Review
requirements remains available to retry.

### Related issue

Related invite handoff: https://github.com/block/buzz/pull/8601.

### Testing

Provider and widget regressions cover missing or expired approval,
browser-launch failure and retry, identity preservation, and native
dismissal without reporting a successful join.

The isolated PR build passed actual clipboard entry and Allow Paste,
browser consent, return to Join, membership, starter channels and seeded
history. Camera scanning remains untested.

### Screenshots

Browser requirements opened from the native Join prompt:

![Review community
requirements](https://raw.githubusercontent.com/block/buzz/37c30af1fc3bf2c2c97a1c19ce48eea63971206c/pr-8952--BROWSER_REQUIREMENTS.png)

Joining resumes after approval:

![Join after browser
approval](https://raw.githubusercontent.com/block/buzz/37c30af1fc3bf2c2c97a1c19ce48eea63971206c/pr-8952--RESUMED_JOIN.png)

Joined with starter-channel history:

![Welcome history after
joining](https://raw.githubusercontent.com/block/buzz/37c30af1fc3bf2c2c97a1c19ce48eea63971206c/pr-8952--RECOVERY_HISTORY.png)

Signed-off-by: John Tennant <jtennant@block.xyz>
Co-authored-by: Zack <04f47b290b155b3b8b782b11501cdb15f1e21e82dfceefd01ff0ed405459d927@buzz.block.builderlab.xyz>
2026-11-02 20:25:16 -05:00
Tom Brow
009dc103f6 perf(mobile): read the channel list after live changes, not every minute (#8910)
## Summary

While the app is open, a 60s timer reads the whole channel list again:
every membership roster, the channel metadata, and the unread catch-up.
On the test account that is **about 4MB of JSON every minute** on the 12
mini, about 240MB an hour, whether or not anything changed.

The live subscriptions already deliver what the list is built from, so
this PR removes the timer. The list is read again when a live event says
it may have changed:

- a relay notice that tags this reader: added to a channel or a new DM
(kind 44100), removed from one (44101), or a DM hidden or shown on
another device (30622)
- a metadata edit on a listed channel (kind 9002, now part of the live
filter)
- a system notice on a listed channel that changes the channel itself:
archived (including the relay auto-archiving an idle ephemeral channel),
unarchived, deleted, visibility, topic, purpose, TTL and similar. Member
joins and leaves don't count.

The read starts 2s after the last such event, and no later than 10s
after the first, so a burst costs one read. Reads start at least 10s
apart however busy the relay is. A read that fails is retried with
backoff (5s, doubling up to 5 minutes), including the read after a
resume or reconnect. Nothing is read in the background: launch, resume,
reconnect and pull to refresh read the list as before.

Live subscriptions ask for no stored events (`limit: 0`), so nothing
sent while one is down is replayed. So:

- Each list read opens the notice subscription before it reads, and the
read covers anything sent before.
- If the relay closes the notice subscription or a channel chunk for a
reason that may clear (busy, rate-limited, timed out), the relay session
reopens it itself, as before. The channel list now hears about that
through `subscribeWithStatus`.
- If the relay refuses one as over its subscription limit, only that REQ
is retried, after a jittered backoff (5s, doubling up to 5 minutes). The
backoff starts over once a reopened subscription has stayed up for a
minute. Any other refusal (`restricted:`, `invalid:` and so on) can't
succeed unchanged, so it is left alone until the next connection, as on
main.
- A reopened subscription that is still up when its read comes due
counts as a change, so the list is read once to catch up on what it
missed. If the relay admits a REQ and then closes it again, it triggers
no reads.

Known gaps, accepted: deleting a channel or kicking a member sends this
reader no notice, and archived channels have no live coverage, so an
unarchive done on another device isn't seen. An edit to a newly added
channel that lands in the round trip between reading its metadata and
its live subscription starting is also missed. The list catches up on
the next launch, resume, reconnect or pull to refresh. Archiving or
unarchiving on this device re-reads the list at once, as before.

## Measurements

iPhone 12 mini on Wi-Fi against the internal relay, app open and idle,
instrumented profile build (HTTP response bodies after decompression,
websocket text in). Measured on an earlier revision of this PR, which
read on a 60s tick only after a change. Idle behavior is the same now
(no change, no read).

| 10 idle minutes | main | this PR |
| --- | --- | --- |
| Channel list reads | 10 | 1 |
| HTTP queries | 40 | 5 |
| HTTP response bytes | 39.9MB | 4.0MB |
| Websocket bytes in | 4.4MB | 1.1MB |

On main, every tick read memberships (348KB), another 310KB query and
the unread catch-up (3.3MB). With this PR, the only read in the window
came right after another device hid or showed a DM (kind 30622), which
is exactly the kind of change it should pick up. Sizes are JSON after
decompression; the relay gzips responses, so wire bytes are smaller (not
measured). [#8901](https://github.com/block/buzz/pull/8901) separately
shrinks each read's unread catch-up; the two are independent.

## Testing

- New journey test: with the app open and nothing changing, nothing is
read. Adding the reader to a channel, renaming a listed channel,
archiving or auto-archiving one and removing the reader each cause one
read about 2s later, and a member joining causes none. A change right
after a read waits out the 10s gap. A steady stream of changes is read
after 10s and then no more than every 10s. A burst costs one read. A
failed read is retried with backoff and then stops.
- New journey test, for the notice subscription and for a channel chunk:
the relay refuses it twice as over its limit while the list changes. It
is retried with backoff, and once it has stayed up the list is read once
to catch up. Later the relay drops it, and having stayed up it is
reopened within about 5s and catches up again. Then it delivers live.
The relay then closes it as busy while the list changes, and the list
catches up once it is back; closed again right after reopening, it
triggers no read until it stays up. Refused as `restricted:`, it is not
retried.
- The resume journey: a reconnect read and a resume read each fail once
while a channel is added, and each is retried and shows the channel.
- Each guard was removed once to confirm a test fails: the debounce, the
max wait, the minimum gap, the read retry (including after reconnect and
resume), the catch-up reads after a retry or a relay-session reopen, the
still-up checks, the backoff restart, the background check, retrying
only capacity refusals, and clearing refusals on a new connection.
- The terminal-rejection tests expect a chunk refused as `restricted:`
never to be retried on that connection or to cause a list or history
read, and a new connection to retry it at once.
- `just mobile-check` and `just mobile-test` pass.
- Device: on the 12 mini, 10 idle minutes with the app open, before and
after (table above).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 13:13:16 -08:00
Tom Brow
fa395e9e80 feat(mobile): open a prefilled Create agent form from Builderlab agent cards (#8912)
Builderlab agent cards (printed for the event, and generated at the
kiosk) carry a QR to a share page, `app.builderlab.xyz/a/<id>`. Its
**Add to Buzz** button opens `buzz://agent/new?card=<id>`, which no Buzz
client handled until now. This PR makes mobile handle it.

### Behavior

- Opening the link shows the Agents page, then a Create agent form
prefilled from the card. Everything stays editable, and nothing is
created until the user taps Create.
- The app fetches the card's `agent.json` from the avatars CDN for this
build's Builderlab environment (production or staging). The link carries
only the card id, never a host, so the QR stays small no matter how long
a card's instructions get.
- `agent.json` is validated against the card schema. `id` (matching the
link), `name` and `avatarUrl` (an https URL) are required.
`instructions`, `model` and `reasoningEffort` are optional (published
cards don't have them yet) and left for the user when absent. A missing
required field or a wrongly typed known field rejects the card; any
other key is ignored whatever its type, including `v` and `description`
(Buzz agents have no description to prefill), so Builderlab can add
fields without breaking released apps. The model and effort are
preselected only if the live catalog offers them. The card id is opaque:
any non-empty id is accepted and percent-encoded into the URL.
- The fetch uses the same limits as image downloads, now shared in
`bounded_fetch.dart`: aborted after 20 s without a byte or 5 min
overall, and rejected over 2 MB. `MediaImageProvider` now calls the same
helper, with no behavior change.
- The link waits for sign-in, then reloads the registry for the
signed-in account before anything else. It's dropped with a message if
the card is unavailable (403/404), invalid, can't be loaded (any other
response), or an agent setup is unfinished, including a setup saved
before a sign-in the link triggered.
- A link that arrives while Agents shows only its list replaces that
page instead of stacking a second one. If a form or sheet is open there,
the link is dropped with "Finish or close what’s open in Agents, then
reopen the link." and the open work is kept.

### Demo

Simulator (iPhone 17 Pro, debug build of this branch plus the sign-in
fix from [#8914](https://github.com/block/buzz/pull/8914) and the hidden
debug banner from [#8915](https://github.com/block/buzz/pull/8915),
signed in to Builderlab, remote-agent-pilot), recorded in one take with
idle time trimmed: the card's share page in Safari, Add to Buzz, the
prefilled Create agent form, a model, thinking level and instructions,
Create, then a message and the agent's reply.


https://github.com/user-attachments/assets/e66aae17-884a-4e68-a1b8-ecb40562be1d

### Validation

Added tests:
- Table tests for the link shape (only `?card=<id>` with an opaque id;
the inline `#` form, extra parameters and dot segments are rejected) and
for reading `agent.json` (a published card, a card with instructions and
model defaults, unknown keys of any type ignored, including `v`,
`description`, arrays, objects and null, and invalid cards: missing or
mismatched required fields, wrong types, and non-https or relative
avatars).
- Table tests for fetching: the request goes to this build's CDN without
following redirects, with the id percent-encoded as one path segment;
403/404, a redirect, a 500, a network error, declared and streamed
oversize bodies, non-JSON and a JSON array each give a specific message.
The image loader's existing stall, deadline, cap and cancel tests now
cover the shared helper.
- A journey test from link to Create against a fake CDN: prefill and
edit, then submit; an unavailable card; a failed model catalog whose
Retry then preselects the card's model; a Builderlab account change
while the card loads, which drops the draft; a v1 card with no
instructions and an unknown model; an unfinished setup; a link arriving
while a Create form with edits is open, which keeps the form and its
edits; and a link arriving while Agents is open. Disabling the https or
id check makes the table test fail, and removing either the account
recheck or the loaded-catalog check fails the journey. The journey runs
through the production root scope (removing its link handler fails it)
and runs in CI's configured-authentication-domains step.

Full mobile check and test suite pass locally.

Live data: a real staging card's `agent.json`
(`av_MioTAG6dm7q3Zcm0UV2j8A`) has the v1 shape the table test uses, and
an unknown id returns 403 from the CDN.

Live run on an iPhone SE (build of 63ed54c749, Builderlab sign-in
enabled, remote-agent-pilot, signed in as builderlab@tombrow.com) with a
real production card,
[ToastyMacbeth](https://app.builderlab.xyz/a/av_lrmRlJR6ylrQKvJkoLWCOQ)
(a v1 card with no instructions and an extra `description` key):
- Opening `buzz://agent/new?card=av_lrmRlJR6ylrQKvJkoLWCOQ` from a cold
start opens Create agent prefilled with the card's name and avatar.
- After choosing a model and adding instructions, Create adds the agent
with the card avatar, and it replies in a DM.
- An unknown card id shows "This agent card isn’t available."

| Prefilled | Created | Reply | Unknown card |
| --- | --- | --- | --- |
| <img
src="https://raw.githubusercontent.com/block/buzz/b9222db494758c3e536b8e2011032ba7cec86daa/pr-8912--01-prefilled.png"
width="200"> | <img
src="https://raw.githubusercontent.com/block/buzz/b9222db494758c3e536b8e2011032ba7cec86daa/pr-8912--02-created.png"
width="200"> | <img
src="https://raw.githubusercontent.com/block/buzz/b9222db494758c3e536b8e2011032ba7cec86daa/pr-8912--03-reply.png"
width="200"> | <img
src="https://raw.githubusercontent.com/block/buzz/b9222db494758c3e536b8e2011032ba7cec86daa/pr-8912--04-unavailable.png"
width="200"> |

Before this PR, the app had no handler for `buzz://agent/new`, so the
link did nothing.

A separate widget test covers a link that needs Builderlab sign-in
first: once sign-in lands, a setup saved for that account blocks the
card, which is never fetched. Removing the registry reload fails it, as
does removing the busy-Agents guard for the journey step above.

### Before merge

- [x] Human live check waived under the repository owner's standing
testing exception. In its place, agent-driven full-app runs exercised
the flow end to end: the iPhone SE device run and the simulator demo
above (a real card's share page, **Add to Buzz**, the prefilled form,
Create and a reply from the agent). Limitation: those runs predate
[638f5ecac7](638f5ecac7),
whose two guards are covered by the widget tests above rather than a
live run.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 13:00:08 -08:00
Tom Brow
61b8455a3c fix(mobile): open unjoined channels from links and search results (#8923)
Tapping a `#channel` link to an open channel you haven't joined showed
"Channel could not be opened", because a tap could only open a channel
already in the local list. A search hit had the same gap: it did nothing
when its channel wasn't in the loaded list, for example when the
open-channel directory failed to load or hadn't loaded yet.

Both taps now go through one resolver. It looks in the loaded list
first, then reads the channel's own metadata, as `buzz://` deep links
already do.
- An open channel you haven't joined opens in preview ("Join this
channel from Manage to participate").
- A private or withheld channel stays closed and shows "Channel not
found here".
- A failed lookup shows "Could not open the channel". So does a missing
channel when the channel list failed to load, since it may be one you
belong to.

The resolver also guards two cases:
- A second tap during a slow lookup doesn't open the channel twice.
- A lookup that finishes after you switch community or identity, or
after you moved to another page, opens nothing and doesn't block a new
tap.

Fixes AIDA-2324 and AIDA-2286.
[#8764](https://github.com/block/buzz/pull/8764) already made search
load the open directory, which fixed the common search case, so the
search part here covers the remaining fallback.

### Before: a link to an unjoined open channel fails


https://github.com/user-attachments/assets/c39cf0db-8098-4010-993e-cf664230c809

### After: the same link opens the channel in preview


https://github.com/user-attachments/assets/1422e70f-39c5-4598-8232-efad190b3413

### Validation

- Added tests:
- A table-driven channel-link journey with four rows: an unjoined open
channel opens, a withheld channel and a private channel show "Channel
not found here", and a failed lookup shows "Could not open the channel".
Each row double-taps during a gated lookup and asserts a single lookup
and a single push. Failure rows then tap again to show the lock is
released.
- A lookup that settles after the user opened another page pushes
nothing.
- Search journeys: a message hit opens its unlisted channel (including
after the channel list failed to load), or explains why it can't ("Could
not open the channel" when the list failed).
- Taps whose lookup will be discarded don't block the next tap: after a
community switch away and back, or from another page after the first
page closed. Each row fails if its part of the tap lock or the
connection fence is removed.
- I reverted the production files to `main` once and confirmed every new
test fails there.
- The full mobile suite and `mobile-check` pass.
- I ran it on an iPhone 18 Pro simulator (iOS 27), signed in to
Builderlab with an account that isn't a member of the open channel
`#speed-tests`.
- A link to that channel shows the error toast on `main` and opens a
preview with this change (videos above).
- A search hit in that channel opens it with this change. On `main` it
also opens, through [#8764](https://github.com/block/buzz/pull/8764)'s
directory load.
- Not covered by tests: waiting for a channel-list load still in flight,
a short guard I checked by reading the code.
- The human app-test step doesn't apply (Tom's standing exception for
mobile client changes).

buzz-review-completed

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
2026-11-02 12:55:59 -08:00
Tom Brow
97ff4e19d1 docs(mobile): describe the role split in the media image keys (#8932)
Follow-up to [#8913](https://github.com/block/buzz/pull/8913). Its
review
[noted](https://github.com/block/buzz/pull/8913#discussion_r4445612714)
that three doc comments in `media_image.dart` still describe the old
keys after that PR split direct and thumbnail-fallback loads:

- The class doc now says the provider keys on `isThumbnailFallback` as
well as url, scale and auth scope.
- The `_cooldownUntil` doc says it is keyed by (url,
isThumbnailFallback), like `_inFlight` but without auth.
- The `_SharedFetch` doc says a download is shared per URL, auth scope
and role.

Comments only, no behavior change. `flutter analyze` is clean and the
full mobile suite passes. No app run, since nothing executes
differently.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 12:55:55 -08:00
Tom Brow
35df866b33 fix(mobile): split escaped voice-note links into their own segment (#8940)
Follow-up to [#8925](https://github.com/block/buzz/pull/8925), from a
[Codex
finding](https://github.com/block/buzz/pull/8925#discussion_r4446048706)
there.

After #8925, message Markdown arrives with backslash escapes shielded,
but imeta is keyed by plain URLs. Two lookups used the raw,
still-escaped destination:

- **Bubble segmentation** (`bubble_segments.dart`): an attachment link
such as `[voice.mp4](https://…/voice\_note.mp4)` missed its imeta entry
and stayed inside the text bubble, even though the link builder rendered
it as an attachment. The fix unshields the URL before the lookup.
- **Trailing image gallery** (`extractTrailingImageGallery` in
`message_gallery.dart`): with two or more trailing images, an escaped
destination kept its backslash, so the carousel loaded the wrong URL and
lost the imeta alt text. The fix unescapes the destination the same way
as the label beside it. Its callers in `message_media_avatar.dart` and
`message_skeleton_body.dart` get the fix too. This gap was already on
main.

### Validation

- The existing `attachments stay outside bubbles and text order is
preserved` journey now uses an escaped destination with a plain imeta
URL. The existing carousel journey now has one escaped image destination
and taps it by its plain URL. Each fails with its fix reverted.
- `flutter analyze` is clean and the full mobile suite passes (4151
tests).
- Limitation: no simulator run. Both changes are key lookups, and the
widget journeys exercise the rendered layout. The full-app run for the
surrounding escape handling is recorded in #8925.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 11:18:10 -08:00
Bradley Axen
b5b69d3de8 fix(mobile): let the issuer choose relay assertion lifetime (#8935)
## Why

Mobile rejects any NIP-FI relay assertion whose `expires_at` is more
than 300 seconds away (`hosted_relay_auth.dart`). Once an issuer returns
longer assertions, every fetch fails with `invalidResponse` and
organization sign-in can't connect to the relay. Builds with org sign-in
configured hit this on every attempt.

## What

Keep rejecting assertions that have already expired, and drop the
300-second cap so the issuer chooses the lifetime. Desktop made the same
change in block/buzz-app#2171. The relay still enforces its own
`maximum_assertion_age`.

The token cache needs no change. It already refreshes 30s before
`expires_at`.

## Testing

- Added a table case to `organization_relay_auth_test.dart`: 300s and
24h are accepted; 0 and -60 are rejected with `invalidResponse`. It
fails against the old cap and passes with the fix.
- `just mobile-install mobile-check mobile-test` passed locally at
f2024a5ac.
- Not tested in the app or against a live issuer.

## Rollout

Distributed builds that enable org sign-in need this before the issuer
moves past 300s.

Signed-off-by: Bradley Axen <baxen@squareup.com>
Co-authored-by: claude00 <fb8b76a01257932b8ca35060862c29bd09b2137638573731c2d5074fc02c5385@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 12:13:51 -07:00
Logan Johnson
2fd5c122e8 fix(mobile): load earlier edits to thread replies when a thread opens (#8870)
## Summary

In the mobile thread view, if a reply was edited before you opened the
thread, the reply showed its original text and no "(edited)" marker. An
edit that arrived while the thread was open worked.

The thread `/query` asked only for message kinds. The channel window
carries edits, reactions and deletions (aux events) only for top-level
messages, so an earlier edit to a reply was in neither result. The
thread query now sends `include_aux: true`, as desktop does (`buzz-app`
`src/features/relay/threads.ts`). The relay already supports this on the
`depth_limit` thread route: it returns the aux events for the root and
every reply, plus deletions of those
(`crates/buzz-relay/src/api/bridge.rs`, `bridge_thread_aux`). A relay
that ignores the flag gives the same result as before.

The relay sends a page's rows (at most 200 reply-marked events, of any
kind) before that page's aux events. It also repeats the root's aux on
every page. So `fetchCompleteThread` treats the leading run of events
reply-marked into this thread, other than reactions and NIP-09
deletions, as the page's rows. Only rows count toward a page, move the
cursor and feed the reply cache. A reply-marked huddle event still fills
a page, and a reply-marked reaction never becomes a reply. A
reply-marked edit of the root in the repeated aux can follow a short
final page's rows and look like a full page, so the scan also stops when
the next cursor does not advance. The thread-summary scan
(`fetchCompleteThreadReplies`) still asks for replies only and pages
exactly as on `main`.

### Related issue

Found during the emulator testing of
https://github.com/block/buzz/pull/8863.

### Testing

- `just mobile-check`, `just file-size-check` and `just mobile-test`
pass.
- `thread_replies_provider_test.dart` adds two tests. The first checks
that the query sends `include_aux` and that an edit made before the
thread opens folds into its reply. The second covers pagination: a
reply-marked huddle row filling a page, a reply-marked edit that is a
row on one page and aux on the others, a reply-marked reaction that
stays aux, 200 reply-marked reactions after 199 replies (one query), 200
reply-marked root edits after a short final page (the progress guard
ends the scan), an edit reply-marked into another thread that stays aux,
and that the summary scan doesn't send `include_aux`. It fails if any of
these is removed: the reaction/deletion exclusion, the root check, the
200 cap, the progress guard, or the separate row and aux id sets.
- `channel_detail_page_test.dart` adds a journey: it opens
`ThreadDetailPage` with the real thread query and a fake relay session
that sends the reply's earlier edit only when `include_aux` is set. It
checks the edited text, that the original text is gone, and the marker.
It fails when the flag is removed or when the provider drops aux.
- Android emulator (AVD, debug build) against a local relay. Morty posts
"Who can review the release notes?", Demo User replies "I can, after
lunhc" and then edits the reply to "I can, after lunch", all before the
thread is opened. These shots come from the first revision of this
branch. The pagination changes after it give the same result for a
one-page thread like this one.

| Before (unfixed: the #8863 build) | After (this branch) | Live edit
while the thread is open |
| --- | --- | --- |
| <img
src="https://raw.githubusercontent.com/block/buzz/4daefdf9a427c66dd80edcc59ee664c1da63824c/pr-8870--thread-before.png"
width="300" alt="Before: original reply text, no marker"> | <img
src="https://raw.githubusercontent.com/block/buzz/4daefdf9a427c66dd80edcc59ee664c1da63824c/pr-8870--thread-after.png"
width="300" alt="After: edited reply text with (edited)"> | <img
src="https://raw.githubusercontent.com/block/buzz/4daefdf9a427c66dd80edcc59ee664c1da63824c/pr-8870--thread-live.png"
width="300" alt="Live edit while the thread is open"> |

Before, the thread shows the original reply text with no marker. After,
it shows the edited text and "(edited)". A live edit still lands.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 10:59:38 -08:00
Tom Brow
54ca2a3cc6 fix(mobile): render Markdown backslash escapes (#8925)
Mobile showed Markdown backslash escapes literally. A message linking a
channel as `[\#buzz-mobile](buzz://channel/…)` rendered as
`\#buzz-mobile`, and `\[text\]` rendered as LaTeX math. gpt_markdown has
no backslash escapes.

Outside code, each escaped ASCII punctuation character is now held as a
stand-in (an invisible word joiner plus the character's fullwidth form)
before parsing, so no other syntax (links, emphasis, mentions, channel
tokens, math) matches it. A new inline component and the link and image
builders restore the original character. The inbox/search preview
builder already handled escapes this way; its helpers moved to a shared
`markdown_escapes.dart`.

Two edge cases found in review are covered: shielding runs after
trailing-gallery extraction so carousel URLs and labels stay as
authored, and a bare link no longer takes a trailing backslash into its
destination. Codex review added: escaped backticks stay literal instead
of opening code, authored word joiners are not mistaken for stand-ins,
Buzz URL punctuation peeling keeps a trailing backslash, gallery
semantic labels drop escapes, the trailing-backslash peel is linear and
reruns after delimiter stripping, an escaped `\<url>` is not treated as
an autolink, `~~~` fences are skipped like backtick fences, an autolink
containing `\` keeps it in both label and destination, and the stand-ins
use fullwidth characters so the one gpt_markdown fallback that shows raw
text (multi-line strikethrough) still reads right.

Later review: fence detection looks back only over blanks and `>`
markers, so it stays linear on long lines (security review) and treats
an unclosed fence inside a quote or list as code, like the renderer
(Carl).

Behavior change: `\(x\)` and `\[x\]` now show as `(x)` and `[x]` instead
of math, per CommonMark. Desktop (buzz-app) doesn't render math either.
`$…$` math is unchanged.

### Validation

- Added tests: a `MessageContent` table covering escapes in prose, bold,
link labels (HTTP and `buzz://channel`), fenced and inline code (left
literal), a bare link ending in `\`, and escaped backticks, authored
word joiners and fullwidth characters, a `~~~` fence, a multi-line
strikethrough, `<https://example.com/a\>`, a Buzz URL ending in `.\`, an
emphasized bare URL ending in `\*`, an escaped `\<url>`, and a trailing
image gallery with escaped labels (including its semantics label), in
plain and bubble layouts. Each row also asserts no stand-in reaches
visible text or semantics. Reverting any one of these fixes fails it.
- `flutter analyze` is clean and the full mobile suite passes, except
for 11 `notification_toggle_test.dart` tests. Those fail locally on the
Studio at the CI-green a3964ab as well, so they are environmental and
unrelated to this change. A 256 KiB regression test covers the linear
fence scan, and it fails on the earlier code.
- iPhone 17 Pro simulator (iOS 27) signed in to the internal community:
loganj's original message now shows `#buzz-github-prs` and
`#buzz-mobile`.
- Full-app run on
[a3964ab](a3964ab08c):
debug build on a fresh iPhone 17 Pro simulator (iOS 27), signed in to
the internal community with live data. Covered the #buzz-github-prs
timeline (long linked lists, bare URLs, mentions, reactions, thread
summaries), a thread view, Inbox previews (the shared preview helpers),
a DM with a bare link and a channel link, and search results. Everything
rendered as before apart from the fixed escapes, with no stray stand-in
characters. Limitations: debug build, iOS only, no gallery or code-block
messages were in the visited history (the widget tests cover those), and
a 165-second recording was taken but GitHub can't take it through our
upload script. Two quirks seen are pre-existing and unchanged here: a
bare link absorbs a trailing comma, and search shows raw Markdown for
messages over 512 characters.

<details><summary>Full-app screenshots</summary>

| Channel | Channel (scrolled) | Thread |
| --- | --- | --- |
|
![channel](https://raw.githubusercontent.com/block/buzz/1b0b3e0052f65fbc7b0aca678fc1b45d1265d8c3/pr-8925--fullapp_02_channel.png)
|
![scrolled](https://raw.githubusercontent.com/block/buzz/1b0b3e0052f65fbc7b0aca678fc1b45d1265d8c3/pr-8925--fullapp_04_scroll.png)
|
![thread](https://raw.githubusercontent.com/block/buzz/1b0b3e0052f65fbc7b0aca678fc1b45d1265d8c3/pr-8925--fullapp_05_thread.png)
|
| **Inbox** | **DM** | **Search** |
|
![inbox](https://raw.githubusercontent.com/block/buzz/1b0b3e0052f65fbc7b0aca678fc1b45d1265d8c3/pr-8925--fullapp_06_inbox.png)
|
![dm](https://raw.githubusercontent.com/block/buzz/1b0b3e0052f65fbc7b0aca678fc1b45d1265d8c3/pr-8925--fullapp_07_dm.png)
|
![search](https://raw.githubusercontent.com/block/buzz/1b0b3e0052f65fbc7b0aca678fc1b45d1265d8c3/pr-8925--fullapp_08_search.png)
|

</details>

### Before / after

Before (production build, reported):


![01-before](https://raw.githubusercontent.com/block/buzz/809b2fccf98b41dc612acb9a32c9dd880ff40403/pr-8925--01-before.png)

After (this branch, same message):


![02-after](https://raw.githubusercontent.com/block/buzz/809b2fccf98b41dc612acb9a32c9dd880ff40403/pr-8925--02-after.png)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: studio <dc2fc481343672df31a689840c09299972e704dac592e0da6f18486646a7ee3e@buzz.block.builderlab.xyz>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 10:35:54 -08:00
Tom Brow
da93ce3f62 fix(mobile): open the public Builderlab login the iOS bridge allows (#8914)
On main, "or sign in with email" on iOS fails immediately with "We could
not finish connecting. You can try again." No Builderlab page opens.

[#8700](https://github.com/block/buzz/pull/8700) changed the iOS browser
bridge so the public account hosts (`app.builderlab.xyz`,
`app.builderlabstaging.xyz`) may only open `/auth/native`. The Dart side
still opens `/api/goose/v1/auth/login` for them, so the bridge rejects
every public sign-in before presenting a browser. Every iOS build since
#8700 is affected; organization sign-in on tenant hosts is not.

The matching Dart change was Wes's
[#8712](https://github.com/block/buzz/pull/8712). It was merged into the
#8700 branch, but main's squash of #8700 kept only the bridge half. This
PR restores #8712 on top of main:

- The public account opens `/auth/native` (state, S256 challenge,
callback and retained invite unchanged, without the CLI-only
`type`/`product` parameters). Organization tenants keep
`/api/goose/v1/auth/login`.
- A saved session whose account still needs web setup goes through the
same browser handoff, keeping its subject and destination.

Android has no path allowlist in its browser plugin, so it needs no
change.

### Validation

- Reproduced on an iPhone 17 Pro (iOS 27) simulator with a main-based
debug build: "or sign in with email" fails instantly. With this change
applied, the same build shows the system "Buzz wants to use
app.builderlab.xyz to sign in" prompt, then the login.builderlab.xyz
"Welcome back to Buzz" page, which confirms production serves
`/auth/native`.
- Restored #8712's tests on top of main's current tests: the browser
test checks the public login URL and its exact parameters, and the
hosted invite journey runs for both a fresh account and a saved account
that still needs setup, asserting `/auth/native` and that the invite is
retained. Without the Dart fix, these fail.
- Mobile format and analyze pass; the hosted onboarding journeys and
`shared/hosted` tests pass with the CI auth-domain configuration.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Brain <1a02c72794dcd0f07058a353bc3a81f4028b8c77c92c87fce6d5c8b85970a20b@buzz.block.builderlab.xyz>
2026-11-02 10:00:08 -08:00
Tom Brow
3ae2b6a377 fix(mobile): hide the Flutter debug banner (#8915)
Debug and simulator builds of the mobile app draw Flutter's red DEBUG
ribbon over the top-right corner of every screen. It covers app UI in
demo videos and screenshots, and nobody relies on it. This turns it off
on the app's `MaterialApp`, matching the profile avatar sheet app, which
already does. Release builds never showed it, so they're unchanged.

### Validation

- `flutter analyze` and `dart format` pass.
- Recorded the agent card flow demo on an iPhone 17 Pro simulator (iOS
27) from a debug build with this flag set: no DEBUG ribbon on any
screen.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
2026-11-02 10:42:01 -07:00
Tom Brow
9f8913dd1b mobile: keep a thumbnail fallback apart from a direct load of the same URL (#8913)
## Summary

Follow-up to [#8896](https://github.com/block/buzz/pull/8896), from its
review threads.

**A fallback and a direct load of the same thumbnail no longer share a
download.** `MediaImageProvider.isThumbnailFallback` decides what a 404
means: for a thumbnail `MediaImage` picked in place of an original, it
records a missing thumbnail so the next build loads the original; for
any other URL it starts the 30s failure cooldown. It was left out of
equality and the in-flight download key, so when a profile URL that is
itself a thumbnail and a fallback to that same thumbnail were on screen
together, both joined one download and only one of them ran its own 404
handling. Now each keeps its own provider and download, and each gets
its own handling.

The failure cooldown is keyed the same way. Before, a direct 404 of a
thumbnail put its URL on cooldown (30s, up to 5 min with Retry-After),
and an avatar that fell back to that thumbnail during the cooldown hit
the cooldown error instead of a 404, so it showed initials instead of
loading the original.

Also:

- Reworded the `preferThumbnail` doc so it no longer names community
icons, which never set it.
- Removed the community-icon avatar test, which fed a URL production
never produces.

## Testing

- New test: a direct thumbnail URL and a fallback to it, shown together,
make two requests; after a 404 the direct URL is in cooldown and the
fallback's original loads (not the initials). It fails with the fetch
key change reverted.
- New test: after a direct thumbnail 404, an avatar that falls back to
the same thumbnail still loads the original. It fails with the cooldown
key change reverted.
- `just mobile-check` and `just mobile-test` pass.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 09:38:34 -08:00
Tom Brow
daeb463f37 fix(mobile): prompt Builderlab sign-in instead of labeling agents desktop-only (#8907)
Without a Builderlab session, mobile can't tell which agents run on
Builderbot, so the Agents page labeled every agent "Manage on desktop",
including remote ones.

Now, when the community supports remote agents and there's no Builderlab
session:
- The Agents page shows "Sign in to Builderlab to manage remote agents"
with a **Sign in** button (the same reconnect flow as Add).
- Agent cards and the navigation subtitle drop the "Manage on desktop"
label.
- An agent's profile says to sign in to see whether it runs on
Builderbot or desktop.

### Before / after

iOS simulator, signed in to the remote-agent-pilot community with no
Builderlab session.

| Before (main) | After (this PR) |
| --- | --- |
| <img
src="https://raw.githubusercontent.com/block/buzz/9be9cebedc8f5ff172e97a3df2cbf505a90e41c4/pr-8907--before-agents.png"
width="300"> | <img
src="https://raw.githubusercontent.com/block/buzz/9be9cebedc8f5ff172e97a3df2cbf505a90e41c4/pr-8907--after-agents.png"
width="300"> |

### Validation

- New widget test `agents_signed_out_prompt_test.dart` (runs with
`BUZZ_AUTH_DOMAINS`, added to the CI list).
- `just mobile-check` and the mobile test suite pass.
- Checked the signed-out Agents page in the iOS simulator.

buzz-review-completed (manual testing waived by Tom)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-02 09:22:14 -08:00
klopez4212
b4509dee8b feat(mobile): add Buzzies and refresh agent avatar picker (#8921)
## Summary

Adds Buzzies and refreshes the agent avatar picker with larger previews,
rounded option strips, and clearer category choices. Also moves Agents
above Appearance in the home menu and adds a custom agent icon.

### Related issue

None found.

### Testing

Analysis, 4,138 app tests, package tests, and 121 configured-auth tests
pass. Earlier visual build exercised on Pixel and iOS simulator, with
iPhone review; snapshots below show that build.

| Android · Pixel | iOS · simulator preview |
| --- | --- |
| ![Buzzies in the Android avatar
picker](https://github.com/user-attachments/assets/bf56120c-0128-4683-a0ad-189587a13c8d)
| ![Buzzies in the iOS avatar
picker](https://github.com/user-attachments/assets/63c692f5-822c-4490-883f-36bec8d2be15)
|

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Co-authored-by: Terp <5856f6900e8e0a4e0ea1f4f8d2ee33e4753d2119bc122f94ecafc660b46c0511@buzz.block.builderlab.xyz>
2026-11-02 17:00:12 +00:00
Tom Brow
d342cf141c fix(mobile): catch up unread from the newest message already seen (#8901)
## Summary

Every channel refresh path (app resume, reconnect, the backstop, joining
a channel) re-runs the unread catch-up. Each run asked for every
channel's messages since its read timestamp, up to 1000 full messages
per channel. For a reader with long-unread channels that is megabytes,
every time.

Measured on an iPhone 12 mini against the internal relay (gzip wire
bytes, instrumented profile build):

| | main | this PR |
| --- | --- | --- |
| Cold start unread catch-up | 3.5MB | 3.5MB (unchanged, first catch-up)
|
| Unread catch-up on app resume | 3.5MB | 23KB |

The 60s foreground backstop is one of those paths, so on main an open
app downloads the full catch-up again every minute (about 3.5MB a minute
on this account). With this PR each tick costs about 23KB.

On an Edge-class link (Network Link Conditioner "Edge", about 30KB/s) a
3.5MB batch needs about two minutes but has an 8s history timeout, so it
never completes and the next refresh starts it again.

A later catch-up in the same session now starts
`relayCrossDeviceSkewSeconds` (1860s) before the previous one was sent.
The relay rejects events whose `created_at` is more than 900s from its
clock, so a sender 900s slow and this phone 900s fast are at most 1800s
apart. Every message stored since the previous catch-up therefore falls
inside the window, including one that arrives late with an older
timestamp (for example, composed offline or on a phone with a slow
clock). Messages before that point were already recorded or skipped, so
unread and attention state is unchanged. The record is cleared with the
rest of the unread state when the channel list is rebuilt (community or
identity switch), and ignored if a channel's read timestamp ever moves
back. A channel whose websocket fallback filter failed (without a
deadline, so the batch still completes) is not recorded, so the next
catch-up asks for its whole window again. A deletion that removes an
unread event the app already recorded also drops the channel's record.
That event may have been the oldest of a full window of quiet agent
messages, standing in for older unread ones the window hides, and only a
whole-window catch-up finds them again. A catch-up that was already out
when that happened doesn't restore the record, since its response only
covers the narrower window. A channel muted or unmuted since its record
also catches up over its whole window, because muting changes which
messages count.

## Testing

- New test: a repeated catch-up starts 1860s before the previous one was
sent, and still records a message that arrived late with a timestamp
1500s before it. Confirmed it fails without the drift window (`since`
starts at the previous send time) and with the earlier 960s window.
- New test: a rebuilt channel list catches up over the whole window
again.
- New test: a channel whose batch and websocket fallback both failed
catches up over its whole window on the next refresh. Confirmed it fails
without the fix.
- Extended test: deleting the quiet-window marker while a catch-up is
out makes the next catch-up ask for the whole window, and the next quiet
message stands in. Confirmed it fails without each fix.
- New test: a channel unmuted since its last catch-up asks for its whole
window and records its ordinary backlog. Confirmed it fails without the
fix.
- The test fake now honors `since` and `until` like the relay. The
deletion cases now use recent timestamps, because a relay never stores a
1970 event late.
- `just mobile-check` and `just mobile-test` pass.
- Device: resumed Buzz on the 12 mini on Wi-Fi with the fix;
backgrounded for a minute, the catch-up requests were 22KB and 0.5KB
instead of 3.2MB and 287KB (f71c6c7600).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 18:53:39 -08:00
Tom Brow
464448c7b2 fix(mobile): resync read state from the last fetch, not the whole week (#8903)
## Summary

Every read-state resync (each reconnect and each resume from background)
fetches every read-state blob (kind 30078, `#t: read-state`) from the
past week, then opens a live subscription with no `since`, which replays
the same blobs again. Merging keeps the newest mark per context, so
blobs from before the previous fetch add nothing. Each blob is a whole
device's read marks, about 100KB for a heavy reader.

A later fetch and the live subscription now start
`relayCrossDeviceSkewSeconds` (1860s) before the last successful fetch
was sent. The relay rejects a `created_at` more than 900s from its
clock, and blobs come from other devices, so a writer 900s slow and this
phone 900s fast are at most 1800s apart. Every blob stored since that
fetch falls inside the window. A failed fetch keeps the earlier start.
The first fetch of a manager still covers the whole horizon.

Companion to [#8901](https://github.com/block/buzz/pull/8901) and
[#8902](https://github.com/block/buzz/pull/8902), which do the same for
the unread catch-up and the latest-message query.

Measured on an iPhone 12 mini against the internal relay, resuming after
60s in the background (kind 30078 websocket bytes, instrumented profile
build):

| | main | this PR |
| --- | --- | --- |
| Read-state resync on resume | about 1.8MB (91 blobs, fetch plus
subscription replay) | 415KB (4 blobs changed since the last fetch) |

## Testing

- New test: the first fetch covers the horizon, the live subscription
and later fetches start 1860s before the last successful fetch was sent,
and a failed fetch keeps that start. Confirmed it fails without the fix
and with the earlier 960s window.
- New test: after the clock moves back, a resync whose fetch fails isn't
retried on every later read; the next reconnect fetches the whole
horizon. Confirmed it fails without the fix.
- `just mobile-check` and `just mobile-test` pass.
- Device: resumed the app on the 12 mini on Wi-Fi; the resync fetched
only the 4 blobs stored since the previous fetch, and the live
subscription replayed none.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 18:53:17 -08:00
Tom Brow
9d1b684455 fix(mobile): show remote agent instructions from the registry (#8908)
After creating a remote (Builderbot) agent with instructions on mobile,
its profile said "Instructions aren't available on mobile for this
agent."

Two causes:
- Mobile called `list-agents` without `include_instructions: true`, so
registry rows had no `agent_instructions`. Desktop already sends this
flag.
- The profile read instructions only from published desktop agent
config, which remote agents don't have.

Now mobile requests instructions in `list-agents` (both the listing and
the post-create readback). For an agent in the active community owner's
registry listing, the profile shows the row's `agent_instructions`. Like
desktop, a missing field means "No instructions set." Desktop agents
keep the published-config path.

Because listings now carry instructions (up to 20,000 characters each),
`list-agents` gets a 4 MB response bound instead of 64 KB. The
delete-retry journal, which lives in plain preferences, drops
instructions before it's written.

### Before / after

iPhone SE, remote-agent-pilot community: profile of an agent just
created on mobile with the instructions "Reply in one short sentence."

| Before (main) | After (this PR) |
| --- | --- |
| <img
src="https://raw.githubusercontent.com/block/buzz/5d7333ea429e6c8c8aae93846d23c3a2bb9bda25/pr-8908--before-instructions.png"
width="300"> | <img
src="https://raw.githubusercontent.com/block/buzz/5d7333ea429e6c8c8aae93846d23c3a2bb9bda25/pr-8908--after-instructions.png"
width="300"> |

### Validation

- Extended `agents_sheet_test.dart`: the remote-agent case asserts the
`include_instructions` flag and that the profile shows the registry
text. It fails without the fix.
- New/extended tests for the larger `list-agents` bound and the retry
journal; each fails with its fix reverted.
- `just mobile-check` and the mobile test suite pass.
- iPhone SE (release build, remote-agent-pilot community): created an
agent with instructions on mobile, then opened its profile, which showed
them. Deleted the test agent afterward.

buzz-review-completed (manual testing waived by Tom)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 18:53:02 -08:00
Tom Brow
985de41f14 feat(mobile): show NIP-FI verified names (#8858)
Stacked on #8700. Review only the last commit until #8700 merges.

NIP-FI relays can publish a relay-signed verified name for each member
who signs in with an organization assertion (kind 30382, specified in
#8745 and implemented in the relay in #8774). Desktop shows these names
in block/buzz-app#2005. Mobile showed only self-declared kind 0 names,
so a verified Block name looked no different from one anyone could set.

This adds verified names to mobile, following the spec and the desktop
client's validation rules.

**What people see**

- A verified member's name is the issuer-verified display name wherever
mobile resolves names through identity names (message headers, threads,
DM titles, member lists).
- Message headers and the profile sheet show a verification mark. The
profile sheet also shows the full name when present, "Verified by
{issuer}", "Last verified {time ago}", and marks the record as cached
when it hasn't been reconciled with the relay on this connection.
Verification is described as historical, never as current access.
- Nothing changes on relays that don't advertise
`federated_identity.public_profile`, and marks never come from kind 0 or
NIP-05.

**How it works**

- NIP-11 discovery decides whether marks may show: a successful response
without `public_profile` hides them (cached records are kept), and a
failed or malformed response keeps the last state. Discovery refreshes
on connect and every 5 minutes while names are tracked.
- Subjects are tracked as the profile cache resolves them, and fetched
in batches of up to 128 with `{kinds:[30382], authors:[self],
#d:[...]}`. Live updates and retractions apply on the same subscription.
A full batch that omits subjects is not treated as proof they have no
record.
- Each event's id and signature are verified (in an isolate) before use,
and it must be authored by the community's NIP-11 `self` key with
exactly the specified tags (plus the optional `full_name` the relay
emits). Names follow the spec's NFC and character rules; `unorm_dart`
(MIT, pure Dart) is added for the NFC check because Dart has no built-in
normalizer.
- The cache is per community and is cleared when the relay's `self` key
changes.

**Not yet covered**

- Some surfaces still read the kind 0 name directly: the members sheet
initial, and search and inbox rows. The mark isn't shown in search rows,
inbox rows, or member tiles. (The mention picker now matches, ranks and
inserts by the verified name and shows the mark, and it also offers
cached verified people outside the channel whose kind 0 name differs.)
- NIP-FI says clients MUST show `issuer_label` beside every verified
name. Here it appears only in the mark's tooltip and accessibility label
and in the profile sheet, and verified names reaching DM titles and
member lists show no mark or issuer. Follow-up: show the issuer inline
wherever a verified name is shown.
- Live updates are coalesced to the newest per subject before signature
proof, ordered by unverified `created_at`/`id`. Only a misbehaving relay
could exploit this (the subscription is `authors:[self]`), and it could
already withhold events. Follow-up: prove first, then coalesce among
valid events.
- The verified `username` isn't shown beside the name in message headers
(the NIP-05 handle still is).
- Collision qualification relies on the existing name-disambiguation
policy rather than the spec's exact self-declared-name rule.

### Validation

Added tests:

- Validation: discovery enabled, disabled and malformed; wrong author;
mismatched or duplicate `d`/`p`; extra or duplicate tags; invalid
usernames; non-NFC and whitespace-padded names; `verified_at` after
`created_at`; bad signatures; retractions.
- Directory: discovery gating, batching, truncation, live retraction,
reconnect reconciliation, and disable hiding cached records.
- Directory failures: a pre-EOSE flood, failed proof retried on refresh,
oversized events (by total size, id or signature) dropped before proof,
live events coalesced, a retry before or after the first EOSE never
proving absence, a retry during proof not promoting records to checked,
and a newer signed malformed projection clearing the older one.
- Mention picker: a verified name finds, ranks and inserts the verified
person; the self-declared name still finds them; a verified person
outside the channel is found by verified name even when an impostor
copies that name into kind 0.
- Identity names: a verified name outranks the kind 0 name.
- UI: the mark in message headers and the profile sheet details, no mark
for a cached record, and a single accessible label.

Full `mobile-check` and `mobile-test` pass.

**Live relay (checked 2026-11-01):** not yet run end to end.

- Staging now advertises the feature: the bb-block staging relay's
NIP-11 (`buzz.block.builderlabstaging.xyz`) has
`federated_identity.public_profile` with `kind: 30382` and
`multiple_issuers: false`, bound to `self` `f7f4df94…dcf1`. So #8774 is
deployed and enabled there. The other staging relays
(`communities.public.builderlabstaging.xyz` and its `team.` host)
advertise no `federated_identity`, and the client shows nothing on them.
- I couldn't confirm that real 30382 events are served or render them.
The relay requires NIP-42 auth plus a client-attached NIP-FI assertion,
which needs an interactive Builderlab/Okta sign-in on a physical device.
SSO doesn't work in the iOS simulator. The remaining step is a device
run signed in to the staging Block community, with screenshots of a
verified name, its mark and its details.

**Shipping behind discovery gating:** this is safe. The client reads and
shows verified names only when a successful NIP-11 discovery advertises
`public_profile` bound to `self`. It accepts only kind 30382 events
signed by that key that pass id and signature verification and strict
shape checks. On every relay without the feature, which is every relay
but bb-block staging today, it shows nothing new and changes no names. A
failed or malformed discovery never turns the feature on, and it marks
cached records as unchecked, which hides their mark. The subscription
and reconciliation paths are covered by the tests above, and Carl's
review reran retry probes through the real `RelaySessionNotifier`.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Sonnet 5.5 <noreply@anthropic.com>
2026-11-01 15:51:25 -08:00
Tom Brow
220cec677a fix(mobile): keep community icons on originals and record thumbnail 404s at fetch (#8896)
Follow-up to #8879, addressing its review.

## Changes

- **Community icons load the original again.** `AvatarImageContent`
gained a `preferThumbnail` flag, off by default. People and agent
avatars turn it on (as #8879 did for every caller); `CommunityAvatar`
leaves it off. Community logos are often transparent PNGs, and the
relay's JPEG thumbnail renders transparency black. This matches desktop,
which shows community icons from the original.
- **A missing thumbnail is recorded where its 404 arrives.** Before,
only the mounted `Image`'s error builder recorded it. If the avatar
scrolled away before a slow 404 came back, the thumbnail URL kept a 30s
failure cooldown instead, and showing that avatar again at any size
during the cooldown rendered initials and never requested the original.
The fetch now records a 404 on a relay `/media/<sha256>.thumb.jpg` URL
in the missing-thumbnail set and puts no cooldown on it.

## Tests

Two journey tests in `avatar_image_test.dart`, both failing on main and
passing here:

- An avatar unmounts before its slow thumbnail 404 arrives, then mounts
again at another size: it requests the original once, renders it (valid
image bytes, no initials), and leaves no cooldown.
- A 36pt `CommunityAvatar` with a relay-hosted icon requests and shows
only the original.

`flutter analyze` is clean. In the full local `flutter test` run, only
12 push and notification tests fail, and they fail the same way on main
in this environment.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

---------

Signed-off-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Tom Brow <tomb@squareup.com>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 15:51:13 -08:00