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[lenny] sync: merge upstream/main (24 commits) into product/main - #39

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[lenny] sync: merge upstream/main (24 commits) into product/main#39
mfethe1 merged 27 commits into
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@mfethe1 mfethe1 commented Sep 11, 2026

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Merges upstream/main (block/buzz, 24 commits ahead) into product/main. Proves the fork can still take upstream releases.

Conflicts resolved (4)

crates/buzz-acp/src/lib.rs — the one that mattered. Upstream 813bbd1412 (block#7552) deliberately deletes our pi_launcher.rs (380 lines): the Pi adapter fork now carries the extensions that launcher worked around, and prompt construction returns to the normal ACP session path. I initially resolved this by restoring the launcher — cargo check rejected it (E0433: unresolved module pi_launcher). The correct resolution is to drop the fork's launcher and adopt upstream's contract. Fork-only session_store is retained (upstream has no equivalent).

Also: naively keeping both sides would call config.base_prompt_content.take() twice — the second returns None, silently dropping every custom base prompt. Resolved to a single take().

crates/buzz-acp/src/pool.rs — kept the fork's posix_shell_command() Windows fix and upstream's new index parameter.

RespondToField.tsx, useLiveChannelUpdates.ts — import unions; all four symbols verified used and exported.

Merge defects found by verification, not by review

  • Cargo.lock carried rusqlite twice -> error: failed to parse lock file. The two blocks are byte-identical; dropped one.
  • respondToAllowlist.ts:62 (upstream code) used a bare .toLowerCase(), which this fork's own check-pubkey-normalization guard rejects — the two diverge on whitespace-padded keys. Switched to normalizePubkey.

Verification

  • cargo check -p buzz-acp --all-targets — OK
  • pnpm run check (biome + px-text + pubkey-truncation + pubkey-normalization + agent-identity) — OK

CI failures matching the 14-job trunk baseline (e294062a2f, run 34616980817) are pre-existing and not caused by this merge.

TolgaCinisli and others added 25 commits September 8, 2026 08:05
## Summary

Inline code on mobile renders as **bold body text on a faint background
wash** — no monospace face, no chip, and it cannot wrap. block#5257 diagnosed
this as a missing `highlightBuilder`.

That is no longer the right fix. `gpt_markdown` 1.2.0 deprecates
`highlightBuilder` (removal in 2.0.0), renders inline code as a real
chip, and adds `InlineCodeStyle` for restyling it. The package author
confirmed this on the issue. So this PR is an upgrade — 1.1.6 → 1.2.1 —
plus one theme declaration, rather than the builder the issue originally
asked for.

**Where the style is declared.** `GptMarkdownThemeData` goes in
`AppTheme._buildTheme`, which both `light()` and `dark()` call. That
reaches all four `GptMarkdown` call sites — `message_content`,
`transcript_item_widget`, `token_pill`, `custom_emoji_render` — so the
style is stated once instead of per widget. A widget-level
`inlineCodeStyle` would have covered channel messages only, leaving the
other three on the package's defaults.

**What is declared.** Face, size, ink, chip fill and outline — not the
face alone. A face name on its own leaves the rest on the package's
defaults, which put inline code at 14.1sp beside a fenced block's 13, on
a neutral `onSurface` tint rather than the app's code surface. In dark
that tint is *lighter* than the surface, while every other code surface
in the app is recessed, so the chip read as a different kind of object.
All of it now comes from one `CodeStyle` declaration that the fenced
block reads from too, so the two cannot be edited apart.

**Three adaptations the upgrade requires.** Each was found by running
the gate, not by reading the changelog:

1. **`imageBuilder` widened** to `(context, url, width, height)`. This
is a hard compile error, and it is **not listed in the package's
migration guide**, which states "nothing here stops code compiling".
Worth reporting upstream.
2. **`autolink` now defaults to `true`.** `normalizeBareLinks()` already
rewrites bare URLs into Markdown links before rendering, so both would
run. `message_content` opts out with `autolink: false` to keep current
behaviour exactly. The migration guide argues for dropping the
pre-processor instead — a better fix, but a behavioural change that
belongs in its own PR.
3. **`gpt_markdown.dart` now re-exports `markdown_config.dart`**, making
two direct imports redundant. `flutter analyze` reports `No issues
found!` on 1.1.6 and flags both on 1.2.1, so these warnings are new, not
pre-existing.

**Deliberately out of scope.** The three non-message call sites now
autolink bare URLs, since only `message_content` has a pre-processor to
collide with. Custom inline components (`_MentionMd`, `CustomEmojiMd`,
`_ChannelLinkMd`) could additionally declare `allScopesExceptLinkLabel`
— 1.2.0 offers it as the fix for a `WidgetSpan` chip going blank inside
a link label on iOS — but current behaviour is unchanged without it, so
that stays a separate change.

### Related issue

Fixes block#5257

Duplicate scan: searched `gpt_markdown`, `inline code mobile`,
`highlightBuilder` and `InlineCodeStyle` across both PRs and issues. No
open PR touches inline code styling. block#6135 (link labels) and block#6166 (text
selection) also touch mobile Markdown but address different defects.

### Testing

Full gate, `just ci` — exit 0:

| Stage | Result |
|---|---|
| Rust (33 suites) | 4768 passed, 0 failed |
| Desktop | 5799 passed, 0 failed |
| Mobile | **2011 passed**, 0 failed |
| `flutter analyze` | `No issues found!` |
| Desktop + web build | ok |

Run on the branch with `main` merged in, so these numbers match what CI
builds.

**New regression test** — `renders inline code in the app code style`.
It resolves the `CodeTextSpan` the package tags inline code with, which
carries both the resolved `TextStyle` and the colours the chip behind it
is painted with, so face, size, ink, fill and outline are all asserted
rather than a widget's presence. It is negative-controlled: reverting
only the theme declaration fails it with

```text
Expected: a numeric value within <0.001> of <13.0>
  Actual: <14.1>
```

and dropping the declaration entirely falls back to
`packages/gpt_markdown/JetBrainsMono` — so the test measures the real
thing, and it would catch a future regression that silently drops the
theme extension.

The test passes `baseStyle: messageBodyTextStyle`, the style the message
surfaces actually use; the widget's own fallback is the smaller
`bodyMedium`, which would move the expected size.

The test finds paragraphs with `find.byWidgetPredicate((widget) =>
widget is RichText)`, not `find.byType(RichText)`: inline code renders
through `BidiRichText`, a `RichText` subclass, and `byType` matches
exact runtime types.

That is a hazard for any test that reads text back out of a paragraph,
and one landed after this branch was cut:
`message_content_custom_emoji_test.dart` arrived with block#6996 and its
`code keeps literal emoji while adjacent known tokens render` case reads
a code span through `find.byType(RichText)`. It passes on `main` and
fails on the merge result, which is what CI builds, so it went red only
once CI was authorized. It now uses the same predicate. The two other
`byType(RichText)` call sites — the rest of that file and
`message_author_meta_test.dart` — were re-run and pass: their content
carries no code span, so the exact type still matches. They were left
alone.

### Screenshots

Rendered through the real `MessageContent` widget with the app's own
fonts loaded, at 390pt wide, 3x DPR. Sample text: ``Set `BUZZ_RELAY_URL`
before launch, then run `just mobile-test` to verify.``

| | Before (1.1.6) | After (1.2.1) |
|---|---|---|
| Light |
![before-inline-code-light](https://raw.githubusercontent.com/TolgaCinisli/buzz/2d2d846291416d9b32d3fb9cfead950bcc4fe123/pr-6631--before-inline-code-light.png)
|
![after-inline-code-light](https://raw.githubusercontent.com/TolgaCinisli/buzz/f230b95c7260a32bd5d76b1ac42130720a168521/pr-6631--after-inline-code-light.png)
|
| Dark |
![before-inline-code-dark](https://raw.githubusercontent.com/TolgaCinisli/buzz/2d2d846291416d9b32d3fb9cfead950bcc4fe123/pr-6631--before-inline-code-dark.png)
|
![after-inline-code-dark](https://raw.githubusercontent.com/TolgaCinisli/buzz/f230b95c7260a32bd5d76b1ac42130720a168521/pr-6631--after-inline-code-dark.png)
|

Before: bold Inter on a flat wash, no chip edge, and `just mobile-test`
breaks across the line with the wash simply ending. After: Geist Mono in
a bordered, rounded chip, and the wrapped fragment gets its own chip on
each line.

---------

Signed-off-by: Tolga Cinisli <tolgacinisli@gmail.com>
Co-authored-by: Tolga Cinisli <tolgacinisli@gmail.com>
…#7340)

## Summary

Adds an independent deadline wakeup so held thread work dispatches after
its 10-second bound even when the relay loop is otherwise quiet. Fences
session ownership by generation so a worker returning after a fork
cannot make an older provider session claimable again.

This follows up on the two post-merge findings from
[block#7337](block#7337 (review)).

### Related issue

Follow-up to block#7337.

### Testing

- `cargo test -p buzz-acp`
- `cargo clippy -p buzz-acp --all-targets -- -D warnings`
- Pre-push file-size, differential Rust test, and desktop Tauri gates

No UI changes.

---
**Update Sep 4, 15:35:** Addressed both Codex review findings.
- Queue-cap eviction now prunes orphaned hold deadlines.
- An expired hold stays expired until a worker is successfully claimed.
- Hold timers remain disabled while every worker is busy; worker return
wakes dispatch directly.
- Added regressions for queue eviction and pool exhaustion.

Generated with Codex

---------

Signed-off-by: Salman Mohammed <smohammed@squareup.com>
## Summary
Route Databricks Unity Catalog model services to OpenAI Responses when
their service name matches GPT-5 or newer. These models can reject tools
plus reasoning on Chat Completions.

Match only the service component, using the existing family-token
boundaries and a numeric major version. Catalog and schema names cannot
select the protocol. Keep neutral effort capabilities and the full model
ID unchanged; other services still use MLflow Chat Completions.

Keep the Rust and desktop resolvers in sync, add shared boundary cases
and a captured-HTTP regression for completion and summarization, and
update the documented FQN rule.

### Related issue
No duplicate found in searches for “FQN responses” PRs or “astra”
issues. Related: block#6918 introduced Unity Catalog discovery.

Originating conversation:
buzz://message?channel=0b881928-a3a6-4c01-b981-8e64268f01ce&id=770949343bc96a9ed88acd90a1b37d358a0efc52c79237d0fdb491ce02b8d4ed

### Testing
No live Databricks inference test. The gateway must accept the full
model-service ID on its OpenAI Responses route; this remains the
integration risk.

The local `just ci` attempt exceeded its five-minute deadline during
`mobile-check`, so the full repository gate was not completed. All
push-hook checks passed.

Generated with Codex

Signed-off-by: Fizz <400e8babadcee6a7f420103f10a2849d84c4a9c71d5bd04f3948c814216648a3@buzz.block.builderlab.xyz>
Co-authored-by: Fizz <400e8babadcee6a7f420103f10a2849d84c4a9c71d5bd04f3948c814216648a3@buzz.block.builderlab.xyz>
…lock#6189)

Upgrades Buzz's mesh-llm dependencies through the released `v0.76.0-rc8`
tag (`2040765d`), including the Qwen3.8 curated recommendation and rc8's
scheduler/runtime improvements.

**Scope note:** the earlier open-relay/unenforced-admission mode has
been removed from this PR at Mic's direction — it is not a product mode
we want. Mesh admission remains roster/allowlist driven, exactly as on
`main`: on a relay with no NIP-43 membership snapshot the mesh runs
self-only. No NIP-11 mode probing, no mode-transition restarts. A future
perimeter/admission strategy for open relays will be designed
separately.

This PR also:
- seeds `BUZZ_AGENT_LLM_TIMEOUT_SECS=660` for mesh agents, above
MeshLLM's 600-second backend timeout;
- makes `desktop-tauri-clippy` lint both default and `mesh-llm` cfg
graphs;
- runs the feature-enabled desktop test suite in CI;
- recommends Qwen3.8 27B Q4_K_M for 64 GB-and-larger machines, then
ladders down through Gemma 4 E4B and Qwen 9B for smaller machines;
- keeps stored shared-compute `auto` translated to MeshLLM's supported
wire model `mesh`.

RC8 verification:
- `just ci` passed locally at
`92ecc7ec933bdd4df804cc9f28a2b51efa5313c5`.
- Pre-push differential gates passed, including both desktop Tauri cfg
graphs and package tests.
- A prior isolated runtime smoke used the RC8 binary's OpenAI endpoint
for a Buzz-shaped system/user/tool/tool-result/final-response loop; all
assertions passed and the isolated process was shut down.

Perf previously measured on M5 Metal, Qwen3.8-27B-Q4_K_M: TTFT 0.22–0.32
s, ~25 tok/s streaming; agent-shaped turns ~1 s to first token after the
first (prefix cache).

---------

Signed-off-by: Michael Neale <michael.neale@gmail.com>
Signed-off-by: Jimmy <1fe240cd1a8cf775f6f3060f115e5a303181f3abf28ad4cb0c2515f4a02b36a8@meshllm.communities.buzz.xyz>
Signed-off-by: Alessandro Joabar <sandro@squareup.com>
Co-authored-by: Michael Neale <michael.neale@gmail.com>
Co-authored-by: Jimmy <1fe240cd1a8cf775f6f3060f115e5a303181f3abf28ad4cb0c2515f4a02b36a8@meshllm.communities.buzz.xyz>
Co-authored-by: Mic Neale <305999590+micspiral@users.noreply.github.com>
Co-authored-by: Alessandro Joabar <sandro@squareup.com>
**Category:** fix
**User Impact:** Link previews can keep loading while a message is being
composed, while sending still has a finite escape hatch and stalled
network transports cannot occupy preview slots forever.

**Problem:** Native metadata and image deadlines could collapse slow
previews into fallback cards while the user was still composing, and a
shared image-host cooldown made pasted batches fail inconsistently after
one rate limit. **Solution:** Keep preview resolution user-paced with no
aggregate request deadline, bound transport inactivity (15s DNS/connect,
30s idle read), serialize image requests by host, and allow at most one
server-directed cooldown wait of up to 30s across an image fetch and its
redirects. The existing bounded post-Send preparation and immediate Skip
paths remain unchanged.

<details>
<summary>File changes</summary>

**desktop/src-tauri/src/commands/link_preview.rs**
Removes aggregate native deadlines so composer metadata work can
complete at the user's pace, while retaining DNS/connect/idle-read
liveness bounds. Adds bounded host-paced image request coordination that
releases its gate during cooldown, waits inline at most once for at most
30 seconds, and cannot renew that wait through redirects or the outer
transient retry. Same-host image and favicon requests remain
deliberately serialized to align with host rate limits.

**desktop/src-tauri/src/commands/link_preview_rate_limit.rs**
Adds a fixed-size striped host gate so concurrent image requests are
serialized without retaining an unbounded attacker-controlled hostname
map.

**desktop/src-tauri/src/commands/link_preview_tests.rs**
Moves native link-preview tests into a dedicated module and covers the
user-paced metadata contract, bounded one-shot cooldown behavior, and
gate release while a rate-limited request sleeps—including a different
host sharing the same bounded gate stripe.

**desktop/src-tauri/src/commands/link_preview_youtube.rs**
Removes the thumbnail fetch deadline so YouTube previews follow the same
composer lifecycle contract while using the shared bounded transport.

**desktop/src/shared/lib/useResolvedLinkPreviews.ts**
Adds development-only metadata outcome diagnostics with elapsed time and
image/fallback state, without logging encoded image payloads.

</details>

### Reproduction steps

1. Open the desktop composer and paste several GitHub pull request links
whose OpenGraph images share a host.
2. Observe that image requests are paced by host instead of racing, and
slow-but-progressing preview work remains pending rather than
immediately becoming a completed favicon fallback.
3. Send while preview work is still pending and confirm **Preparing link
preview** remains bounded by the existing post-Send budget.
4. Use **Skip** during preparation and confirm the message proceeds
immediately.
5. In a development build, inspect the console for `[link-preview]
metadata fetch completed` diagnostics containing elapsed time and image
state without base64 payloads.

### Related issue

N/A — scoped from the linked Buzz implementation room.

### Testing

At current head `dfb394aafbee537e9ffb04ad3732d08f65f30b8e`:

- Production-bound paused-time metadata regression passed through
`fetch_link_preview_metadata`; restoring the former 10-second aggregate
wrapper makes it fail at the pending assertion.
- Native link-preview module: 19/19 passed.
- `cargo check --manifest-path desktop/src-tauri/Cargo.toml` passed.
- Rust formatting and `git diff --check` passed.
- Pre-push `push-head-scope`, org safety, differential file-size,
branch-skew, and `desktop-tauri-checks` hooks passed.

At prior head `59e2dcf167b15c7a3e637ad2608008b7f9cef5f3`:

- Full Tauri Rust suite: 3,056 passed, 19 ignored; integration crates 7
+ 3 passed.
- Focused native link-preview suite: 26/26 passed.
- The pasted multi-preview workflow was exercised in the desktop app and
confirmed improved before draft publication.

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Co-authored-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@buzz.block.builderlab.xyz>
Co-authored-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@users.noreply.github.com>
…#7325)

🤖
## Summary

When a Buzz agent falls behind on incoming messages, its connection can
make the backlog worse while trying to recover. The connection buffers
messages from the relay server until the agent is ready to process them;
if that buffer overflows, recovery previously requested history for
**every subscribed channel** and paused socket reads while sending those
requests. That adds traffic to an already overloaded connection. This
change requests history only for affected subscriptions, once the code
consuming those messages has room, with at least five seconds between
attempts.

The recovery path now:

- Combines repeated losses into one pending recovery per affected
subscription, keeping the oldest dropped timestamp so replay starts
early enough.
- Waits until at least half the consumer queue is free and the relay's
existing rate-limit delay has expired. The queue wakes recovery when
space becomes available; recovery does not periodically sample capacity
or hold queue space away from live messages.
- Attempts one subscription at a time, choosing the least recently
attempted so a busy channel cannot crowd out other channels or
membership notifications. The five-second delay starts when an attempt
finishes, including a failed write; failed writes leave recovery
pending.

Recovery is paced by available capacity, not by how often messages are
lost. This is not a larger buffer or a cutoff that abandons recovery.
Subscription identifiers, message filters, replay timestamp overlap and
duplicate filtering are unchanged; no downstream agent changes are
required.

This targets a reproducible overload **amplifier**, not every cause of
overload or every catch-up limitation. The initial live overload's cause
has not been established. Recovery remains best effort: a successful
request write is not proof of delivery, and existing history/retention
limits, bounded duplicate tracking and replay limitations still apply.
There is no exactly-once or complete catch-up guarantee. A stalled write
can still pause socket reads for the existing ten-second timeout; the
pacing bound does not cover initial subscriptions, reconnects or other
retry paths.

### Related issue

Closest related: block#5014 (channel re-subscription); also block#6661 (membership
reconciliation) and block#6090 (relay backpressure gap signaling). This
addresses local overflow recovery scheduling, not those separate
mechanisms.

### Testing

Recorded offline comparisons against the previous behavior, with the
final implementation at `8000636f3073167c5a5107bb179c7d91160f1729`:

| Same fixture: 18 subscriptions, three overload rounds | Before | After
|
| --- | --- | --- |
| Recovery history requests | 108 | 3 |
| Ping-response delay | About 4.6 seconds | Below the measurement's 1 ms
resolution |

A separate bounded-history fixture delivered all 320 events plus
subsequent live traffic in **both** versions. Regression coverage
exercises the real socket-handling task, including intermittent consumer
capacity, fairness, failed writes and cancellation of capacity waits
before live delivery. These are synthetic results, not production
throughput measurements or evidence of a deployed cure.

The full local `RUST_TEST_THREADS=4 just ci` run passed on September 4,
2026. Earlier unsuccessful local runs remain part of the validation
history. The [recorded validation evidence and separate desktop
follow-up](block#7325 (comment))
preserve the original desktop mock-history scroll failure, its passing
rerun and the remaining investigation. That desktop path does not run
the agent connection code; neither this repair nor the passing rerun
fixes the observed scroll problem.

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
…7494)

🤖

## Summary

When an iOS push notification comes from someone the app has no cached
name for, the notification title showed the first characters of the
sender's raw public key — for example `aa4fc866…`. That fragment is
unreadable and doesn't match how the same person appears anywhere else
in Buzz. This PR changes that title to the compact form of the sender's
npub (npub is the human-readable encoding of a Nostr public key): first
8 and last 4 characters — for example `npub14f8…9nsy`, the same identity
shape used across the desktop and mobile apps.

- Unnamed senders: raw hex fragment → compact npub.
- Named senders: unchanged — a sender the app has a display name for
still titles the notification with that name.
- Unverifiable sender identities (malformed keys, or lookalike strings
that are not literal 64-hex-digit keys) now render a neutral "Someone"
instead of partial raw key material.
- Everything else about the notification is unchanged: body text,
subtitle, thread matching and grouping, deep-link navigation, thread
identifiers, and the internal hex public key the resolver matches on.

The native iOS notification-service package (`BuzzPushKit`) gains a
minimal in-house bech32 codec (bech32 is the checksummed string encoding
npubs use) — checksum-validated, 32-byte keys only, and no new external
dependency. The hex input branch accepts exactly a 64 ASCII hex digit
key before any parsing, so strings that merely parse like hex (for
example a run of `+a` pairs) cannot become a displayed identity; this is
input validation for presentation. Event signature verification is
untouched.

### Related issue

Fixes: N/A. Searched existing issues/PRs for push-notification npub
identity — closest related: none found.

### Testing

At head `3e3f2813b8864b76257ccb50dea3a4b31fa4de0d` (base
`44316ff72f5f7de014c66b01cbf534298a70c249`; 4 files, +321/−4):

- CI `Mobile Swift` lane, at this exact head — all passed: `swift test`
(73 tests, 0 failures), the SwiftPM debug and release builds of
`mobile/ios/BuzzPushKit`, and the unsigned iOS release build.
- Test coverage: npub encoding cross-checked against independent
nostr-rs/NIP-19 vectors; rejection of bad checksums, mixed case, wrong
lengths, invalid alphabet, padding, and non-32-byte payloads; resolver
boundary matrix — hex/npub/invalid sender keys render compact npub or
"Someone" while body, subtitle, sender key, and thread identifier pass
through; named senders keep cached display names.

### Task provenance

Buzz channel: `1f0e4a3d-7e01-4efe-bb16-843b357f85c9`

Task:
buzz://message?channel=1f0e4a3d-7e01-4efe-bb16-843b357f85c9&id=86b34eb4bd84a1472419e9af22636c011c0fe273e3c196f967d7a36996e149b6

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
…gate, strict parser) (block#7488)

🤖
## Summary

Identity keys in the desktop app are displayed as raw 64-character hex.
A person's key shows up as something like `953d3363…` — unreadable,
impossible to recognize as the same identity on another screen, and a
hazard when copied by hand. Nostr (the protocol Buzz runs on) has a
human-readable spelling for identity keys — the `npub1…` form — but the
desktop app did not use it consistently.

This is the foundation of the desktop npub changes: it adds the shared
pieces every identity surface builds on, and two follow-up slices stack
directly on this branch — block#7489 converts the identity controls (profile,
settings, allowlist, workflow key fields) and block#7495 converts the
everyday display surfaces (mentions, member lists, sidebar, and other
name fallbacks).

After this change:

- The shared identity widget shows the compact npub form —
`npub1j57...fjmv` — instead of a hex prefix, everywhere it renders (for
example the owned-agent public-key row on a profile). Copying it puts
the full npub on the clipboard.
- Copy is a real interaction, verified end-to-end: both popover variants
put the exact canonical npub on the actual clipboard — never the raw hex
the popover also lists, never a truncation — and a portaled popover's
clicks no longer steal focus from the new-DM To-field mid-copy. Pointer
copy, a natural Space-then-Enter path, and inner/outer Escape are
covered.
- Anything that isn't a valid identity key fails neutrally: short or
corrupt values — including degenerate values that technically encode to
a checksum-valid npub but aren't real identity keys — show "Unavailable"
with no copy button, instead of a misleading value.
- Both valid npub spellings display: all-lowercase `npub1…` and
all-uppercase `NPUB1…` (Bech32, npub's encoding, permits either casing)
both render the same canonical lowercase npub. Mixed case is rejected by
the display path as written — `canonicalNpub` and the widget don't
case-normalize input — while input parsing (`parsePubkeyInput`) keeps
its trim-and-lowercase normalization and accepts mixed-case npubs; both
paths require the decoded payload to be exactly a 64-character identity
key.
- Identity-key input is strict on payload: an npub whose decoded payload
isn't exactly a 64-character identity key is rejected, matching the
validation the app's Rust side already applies to agent allowlists.

Intentional scope boundary: only surfaces that render through the shared
widget change here. Outer profile copy, settings identity cards, the
respond-to allowlist, and workflow key fields still show hex — they move
to npub in the controls follow-up (block#7489). Nothing else changes identity
representation: display names, private keys, event IDs, and the hex the
app stores, sends, and matches internally are untouched; only the
user-facing spelling of an identity key changes.

## Details

- `desktop/src/shared/lib/pubkey.ts` — `canonicalNpub()`: strict
canonical full-npub helper (64-char hex in any case, or a
checksum-validated npub, returns the canonical npub; anything else
returns `null`); `truncateNpub()`: the compact display form; existing
exports unchanged.
- `desktop/src/shared/ui/PubKey.tsx` — the shared widget's identity gate
validates through `canonicalNpub`; the popover copies the npub only.
- `desktop/src/shared/lib/nostrUtils.ts` — `parsePubkeyInput` rejects
npubs whose payload is not exactly a 64-character identity key.
- `desktop/src/features/messages/ui/NewMessageScreen.tsx` — the To-field
focuses its search input only for clicks that land inside the field
itself, so portaled recipient popovers keep their focus while open (a
popover click previously dismissed it mid-copy).
- Unit suites cover the helper, widget, and parser (including the
degenerate-encode and uppercase regressions); the e2e specs that render
these rows assert the npub display.

### Related issue

- Fixes: N/A. Searched existing issues/PRs for npub identity display —
no existing match.
- Stack: block#7489 is based on this branch and builds on these primitives;
it does not stand alone on main.

### Testing

At head `b3310c248` (base: main `44316ff72`; 12 files, +440/−39):

- Focused unit suites (pubkey, PubKey, parsePubkeyInput): 20/20 green;
mutation-checked — removing the decoded-length predicate fails the
short/empty checksum-valid-npub assertions in `canonicalNpub` and the
widget, and a wrong-identity clipboard value fails the new copy
assertions.
- `pnpm typecheck` and `pnpm check`: pass; full desktop unit suite
6459/6459 at this exact head.
- Targeted e2e at this exact head: 8/8 across the two specs that own the
clipboard flows — `agent-access-warning.spec.ts` (compact variant,
agent-access owner hint) and `pubkey-display-screenshots.spec.ts` (full
variant, new-DM recipient verification: pointer copy, popover surviving
the copy, inner/outer Escape, Space-then-Enter).
- No Rust-side or build files change in this PR, so those results are
unaffected.

### Task provenance

Buzz channel: `1f0e4a3d-7e01-4efe-bb16-843b357f85c9`

Task:
buzz://message?channel=1f0e4a3d-7e01-4efe-bb16-843b357f85c9&id=86b34eb4bd84a1472419e9af22636c011c0fe273e3c196f967d7a36996e149b6

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
…w surfaces (block#7495)

🤖
## Summary

Every Buzz account is identified by a long public key. Before this
change, when someone had no display name, surfaces fell back to
inconsistent labels — mostly raw hex fragments like `abcd1234…wxyz`,
sometimes a generic role label with no key — so the same person looked
different from surface to surface, and nothing looked like an npub
address. This PR applies the npub identity foundation from block#7488 to the
everyday surfaces: a person without a display name now falls back to the
same compact npub everywhere — `npub1xxxx…yyyy`, the human-readable
spelling of their public key (first 8 + last 4 characters of the full
npub) — across messages and mentions, reactions, huddles, member and
participant lists, the sidebar and channel activity, search, projects,
tray, notifications, and workflow surfaces.

- **Mentions and messages**: key-only mention chips render the compact
npub. Pasting a copied mention back still re-binds it byte-exactly to
the identity it declares, for both the new npub chips and legacy
hex-truncated chips copied by older clients — wrong, missing, or
tampered key qualification is rejected instead of silently degrading to
plain text.
- **Reactions and huddles**: huddle reaction events and the huddle
roster/participants render the compact npub for unnamed participants;
workflow reaction triggers describe authors with the same form.
- **Members and sidebar**: channel and community member lists,
add-member results and invites, the members sidebar, the
channel-activity popover, search, projects (assignees/reviewers/PR
panels), the tray menu, and desktop notifications all fall back to the
compact npub; titles and aria labels keep the machine-readable full
labels.
- **Profile labels**: panel/popover display names and owner handles fall
back to the compact npub (never raw hex) when there is no name;
linked-event (nevent) message metadata shows the npub-shaped author
fallback while the event lookup and event IDs are unchanged.
- **Workflows**: author-picker secondary labels, step destination keys,
and trigger-author references render compact npubs; event and blob IDs
keep their existing hex compacts (they are not identities).
- **Avatars stay distinct**: fallback avatars for key-only identities
derive initials from the key's tail, so prefixed role labels like
"Participant npub1…" no longer collapse every unnamed participant onto
the same initials; people with names keep their name initials.

Preserved exactly: display names and distinct avatars, internal hex keys
(storage/API forms unchanged), clipboard identity roundtrips, event/blob
ID compaction, private keys (no nsec path is touched), and nevent link
handling.

Scope: this PR changes what identity labels **display**, not identity
controls — profile/settings copy controls, the respond-to allowlist,
workflow key fields, and agent dialogs are the sibling slice block#7489, and
the shared primitives (`canonicalNpub`, `truncateNpub`, the `<PubKey>`
gate, strict input parsing) come from the foundation block#7488.

### Related issue

- Fixes: N/A. Searched existing issues/PRs for duplicates — none found;
the related work is the npub identity stack this slice belongs to.
- Base/dependency: stacks on block#7488 (foundation) — this PR does not stand
alone on main.
- block#7489 is a sibling slice on the same block#7488 base
(profile/agent/workflow controls), not a dependency: this PR does not
require block#7489, and block#7489 does not require this PR — both only require
block#7488.

### Testing

At exact head `4763cbeae1dd521309755e6d61f657324cb98667` (base:
`fix/desktop-npub-identity-d1a` @
`5f3a4a8111998c8aa41ad77cf66992bd1c85343c`; 71 files, +656/−189 —
production +277/−136, test support +379/−53):

- At this head: targeted `mentions.spec.ts` (1/1), the e2e build,
typecheck, and biome — green.
- 9 changed/related unit files: 100/100 green; typecheck, e2e build,
biome, and px text/truncation checks clean; huddle-roster focused run
green; channel-activity e2e 11/11; mutation checks confirm the fallback
wiring (removing it collapses shared initials and drops fallback rows).
- Known pre-existing local e2e failures, unchanged by this PR and
reproduced identically at the upstream merge-base: huddle-transcription
voice-menu attribution (25 pass / 1 fail) and the
`workflow-local-controls` 438px caret drift. Not claimed green locally.
- Update at head `236af9e6137386737e84d3a474d6bc808a704c50` (test-only
follow-ups `1143af345` + `236af9e6`): the `workflow-local-controls`
races were fixed in the test drivers, and the 438px diff was shown to be
a stale Darwin snapshot baseline (name-row enable switch already absent
and `message_posted` already MessageSquare at recording commit
`9390e11c9`) and refreshed — the focused screenshot test, including
keyboard/caret assertions, now passes locally (twice). The full spec was
not rerun after the snapshot refresh; the huddle-transcription item
above is unchanged.

Label/copy text changes are asserted by the e2e specs (`mentions`,
`mention-recipients`, `pubkey-display-screenshots`,
`huddle-transcription`, `channel-activity-popover`,
`workflow-local-controls`) rather than new screenshots; the screenshot
spec pins the compact npub text forms.

### Task provenance

Buzz channel: `1f0e4a3d-7e01-4efe-bb16-843b357f85c9`

Task:
buzz://message?channel=1f0e4a3d-7e01-4efe-bb16-843b357f85c9&id=86b34eb4bd84a1472419e9af22636c011c0fe273e3c196f967d7a36996e149b6

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
…flows (block#7489)

🤖
## Summary

Building on block#7488's npub foundation, this PR finishes the identity
display change for the controls where you actually manage people and
keys: profile, settings, agent access, and workflows. Everywhere in
these surfaces, an identity key shows — and copies — as its canonical
npub (npub is the human-readable encoding of a Nostr public key: the
compact `npub1j57...fjmv` form where space is tight, the full npub where
the whole key matters), and accepts npub as input.

After this change:

- Profile panel: the public-key row and the managed-by / declared-owner
copies show the full npub. If a key can't be encoded, you see
"Unavailable" with no copy button — never a raw or partial key.
- Settings: the identity card shows and copies the npub. The
hosted-communities account identity derives from the bound key
(`pubkey_hex`) — the same authority as the mismatch gate and hosted
operations — so the display can never disagree with what the app acts
on; an unusable hex falls back to a neutral label instead of rendering
the unverified server npub. The connected claim and a community's
Connect action require that same usable bound key to match the local one
— with no usable binding the card cannot claim connected or start
Connect, while the community list, linking, and delete/rebind recovery
stay available.
- Hosted create/onboarding: the account and device identity rows in the
create flow and owner onboarding derive from the same authoritative
fields (bound key / local key), with the same neutral fallback;
readiness requires a usable bound key that matches the local one.
- Respond-to allowlist (controls who may respond to an agent): entries
can be typed or pasted as hex or npub; both spellings of the same key
are recognized as one entry and dedupe. Search results, chips, and
remove buttons use the compact npub.
- Workflow key fields: to/from keys display as npubs in the form and
save back as canonical hex. Templates like `{{trigger.author}}`, roles,
and free text pass through untouched; placeholders accept both
spellings.
- Recipient and agent dialogs: the verify popover is npub-only (the
raw-hex line is gone); denied-membership screens never show a raw key.
- The Rust-side truncated display name (used for native surfaces) shows
the same compact npub, so those surfaces match the web UI.

Internal representation is unchanged: keys are still stored, sent, and
matched as canonical 64-character hex — npub is a display and input
spelling, normalized to hex at the boundary, so existing data and
integrations keep working. Bound-key usability and comparison use one
normalized form (trimmed, lowercased, 64 hex characters; npub rejected),
so padded or mixed-case spellings of the same key match. Display names,
private keys, and event IDs are untouched.

## Details

- `respondToAllowlist` / `RespondToField`: npub entries normalize to
canonical hex; cross-form dedupe; compact npub in rows and chips;
direct-add accepts npub and stores canonical hex.
- `workflowFormTypes` / `WorkflowStepCard`: hex → npub for display, npub
→ canonical hex on save; templates, roles, and free text pass through in
both directions (roundtrip-tested).
- `UserProfilePanelFields`, `ProfileSettingsCard`,
`HostedCommunitiesSettingsCard`, `MembershipDenied`,
`SelectedRecipientChip`, `AddAgentToChannelDialog`: npub display and
copy; invalid keys → "Unavailable" with no copy; hosted identity rows
derive from the bound `pubkey_hex` (create/onboarding rows from the
bound and local keys), never the unverified server npub;
connected/readiness/Connect gates use the same usable-bound-key
predicate, and the settings Connect invocation callback re-checks it
before starting.
- `src-tauri/src/commands/identity.rs`: `truncated_display_name`
compacts to the first 8 + last 4 characters of the npub (above a 12-char
threshold), mirroring `truncateNpub`.
- e2e: profile key rows and clipboard polls assert npub forms and
raw-hex suppression; the display-screenshots spec pins the npub-only
popover; hosted specs drive the real settings card, create flow, and
onboarding rows through their real providers, and the unlinked/npub-only
identity cases assert no connected claim and no Connect action.

### Related issue

- Fixes: N/A. No separate issue; the related work is the stack below.
- Stack: builds on block#7488 (shared npub foundation), now merged; this PR
is rebased onto main and stands on its own.

### Testing

At head `303c90ffa` (base: main `bfc38485`; 24 files, +1125/−146):

- Focused unit suites (respondToAllowlist, workflowFormTypes,
hostedCommunityApi bound-key helpers) green; mutation-checked — dropping
allowlist canonicalization fails the dedupe case, and dropping bound-key
normalization fails the npub-in-hex and padded same-key cases.
- Full desktop unit suite 6,477/6,477, `desktop-typecheck`,
`desktop-check` (formatting fixed narrowly with `biome check --write` on
the touched files only), and a fresh E2E build at the current head; the
add-community + hosted-communities-settings specs 18/18 and onboarding
integration 69/69 on a fresh dedicated port, with focused new-case runs
4+4 covering padded same-key (ready, Connect kept — no false rebind) and
npub-in-hex (neutral label, recovery, no Connect) across the settings
card, create flow, and first-community onboarding, plus the
unlinked-account settings regression asserting Connect cannot occur.
- `cargo fmt`/clippy (both feature sets) and `cargo test identity` (71
pass) passed at the earlier full-change head; since then, the only
production changes in this PR's delta are the hosted identity display
authority and its fail-closed bound-key gating/normalization above
(base-side fixes carry block#7488's receipts) — every other change is
test-only.

### Task provenance

Buzz channel: `1f0e4a3d-7e01-4efe-bb16-843b357f85c9`

Task:
buzz://message?channel=1f0e4a3d-7e01-4efe-bb16-843b357f85c9&id=86b34eb4bd84a1472419e9af22636c011c0fe273e3c196f967d7a36996e149b6

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
)

🤖

## Summary

In the mobile app, anyone who hasn't set a display name shows up as a
raw 64-character hex key (e.g. `3a5d4f9c…`) — unreadable, and
unrecognizable as the same identity across screens. Profile and Settings
also let you copy that raw hex. Nostr public keys have a standard
readable form — `npub1…`, the same encoding other Nostr apps and our
desktop app already display. This PR makes every mobile identity surface
render npub instead:

- **Unnamed people everywhere** — message and thread authors, reactions,
typing indicators, member lists, channel details, DM headers and tiles,
inbox, search, forum cards, Pulse notes and reply context, mention
suggestions, and invite rows — now show a compact npub label: first 8 +
last 4 characters of the full npub joined by an ellipsis
(`npub1abcd…wxyz`), the same truncation desktop uses. Previously these
showed truncated raw hex.
- **DM fallback avatars and blank names** — 1:1 DM tiles and headers key
their fallback avatar to the same non-self counterpart the label names,
including self-first participant order; a self-DM keeps its
hex-key-derived initial. Blank or whitespace-only display names fall
back to the compact npub instead of rendering empty, while nonblank
authored names render verbatim (padding included).
- **Profile sheet → "Copy public key"** now copies the full canonical
npub — never raw hex. When the identity string isn't a valid public key,
the copy tile is disabled, so a malformed key never reaches the
clipboard.
- **Settings → Identity (pubkey)** displays and copies the full npub; an
invalid identity reads "Identity unavailable" with copy disabled.
- **Invalid identities never leak truncated raw hex** into the UI
anywhere — they render a neutral "Unknown identity" label.
- **Unchanged on purpose:** display names and verified handles (NIP-05 —
the `name@domain` badge) still render as before. Unnamed avatars keep
distinct per-key initials, derived from the underlying hex key rather
than the npub — otherwise every unnamed key would render the same "N"
initial. Event IDs are not public keys, so they keep their hex
truncation (in Pulse's "Replying to", the parent author shows npub while
an event-id fallback still shows hex). The nevent share link, private
keys, and internal hex storage are untouched. Inputs that accept a key
(invite/member entry) accept both hex and npub and keep working in hex
internally.

### Related issue

N/A. Searched open issues/PRs for npub identity display on mobile —
closest related: none found. Desktop's parallel npub standardization
lives in the stacked desktop PRs (block#7488 foundation, block#7489 controls,
block#7495 display surfaces); this is the independent mobile slice (based
directly on `main`, not on those branches).

### Testing

At exact head `5a620e420a1fd57d9d8011ac26434eed32fcf765` (base: `main`
`44316ff72`; 40 files, +1,345/−154):

- Full mobile suite: 2,098 tests passing (`cd mobile && flutter test`);
`flutter analyze` clean; `dart format --set-exit-if-changed .` clean —
the same checks CI runs.
- Widget/unit coverage at production seams: compact labels and hex-keyed
avatar initials for DM headers/tiles, member rows, mention suggestions,
and Pulse reply context; DM fallback avatars keyed to the labeled
counterpart (self-first order and self-DMs); blank/whitespace
display-name npub fallback with nonblank authored labels verbatim,
including the Activity inbox sender and profile-sheet heading (each with
its own empty/whitespace production-seam regression); full-npub copy and
disabled-copy semantics in profile and settings; invalid-key
suppression; and hex↔npub input round-trips.

Verified via unit and widget tests — no device/simulator validation is
claimed.

### Task provenance

Buzz channel: `1f0e4a3d-7e01-4efe-bb16-843b357f85c9`

Task:
buzz://message?channel=1f0e4a3d-7e01-4efe-bb16-843b357f85c9&id=86b34eb4bd84a1472419e9af22636c011c0fe273e3c196f967d7a36996e149b6

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
…ock#7503)

🤖

## Summary

- Channel members appear in the Members sidebar. A member who has never
set a display name is listed under an abbreviated form of their public
key (npub), and the sidebar previously sorted those unnamed members by
that short label. Short labels are not unique — different keys can share
one — so the order of unnamed members could look arbitrary or unstable.
Unnamed members now sort by their full public key, so the order is
deterministic.
- When two members display the same name, the previous tiebreak was
membership order (who joined first), which is not visible to a reader
and can shift as roster data loads in. The tiebreak is now the full
public key, so identical display names always land in the same order.
- Nothing gets noisier on screen: the full key is used only for sorting,
and the sidebar still shows the compact abbreviated form. Priorities are
unchanged — authored (custom) names still outrank fallback labels, and
role/current-user grouping still applies.
- Scope is the desktop app's Members sidebar and member management: the
two existing sort comparators. Mobile and other lists in the app are
untouched.

### Related issue

Based on block#7495 (introduced the abbreviated npub labels this follows up
on). The original five presentation PRs remain independently reviewable.
No closer duplicate found.

### Testing

- 6469 desktop unit tests, typecheck, and check pass.
- The 3 existing consumer-seam E2E tests still pass; a new E2E test
asserts the sidebar lists unnamed members in full-key order, with
fixture members deliberately inserted in the opposite order so incoming
membership order cannot mask the sort.
- Negative check: reverting only this change makes the new ordering
assertion fail, so it genuinely binds the new sort.
- CI has not run on this PR yet.

Buzz provenance: channel 1f0e4a3d-7e01-4efe-bb16-843b357f85c9 / task
340c3de9b27dbedb8453c0c7652220f9080d30fcc70a7c4f6e27fdd4fa378056

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
Co-authored-by: Larry <627498bd4bd1f281a16431e3c6cce3b5c25b6692798c78672298aefbf2f8f8b5@buzz.block.builderlab.xyz>
## Summary

Buzz considers codex-acp 1.6.2 current because the supported adapter
floor is still 1.1.7. That adapter bundles Codex 0.148.0, so updating a
separate Codex CLI to 0.153.4 leaves managed agents on the older runtime
and unable to use GPT-6 Astra.

Raise the supported adapter floor to the published 1.10.0 release, which
depends on `@openai/codex ^0.153.3`. Existing discovery and installation
code then classifies older adapters as outdated and offers the managed
reinstall path. Update the availability and install-plan regressions to
cover the observed 1.6.2 installation and the new minimum.

This follows the existing version-floor policy. It does not
automatically update a running installation: the user must complete
Buzz’s offered adapter upgrade. Future upstream compatibility changes
may require another floor update.

### Related issue

No exact duplicate found in searches for Astra, CODEX_PATH, bundled
Codex, outdated runtime, and codex-acp 1.10. Related: block#3097 raised the
older floor to 1.1.7 (already present on main); block#2422 covers lost error
details for runtime mismatches. Neither resolves this version gap.

Originating conversation:
buzz://message?channel=3286cd76-f83e-4c7d-8317-10a16580744d&id=8b79a73078217222b870fff144c27e7d27bcd5a67c966869c18fe726db716898

### Testing

- Isolated npm install of codex-acp 1.10.0 resolved bundled Codex
0.153.4, with no CODEX_PATH override.
- Live macOS ACP probe: initialize protocol v1 → session/new → select
gpt-6-astra[medium] → prompt. Received `OK` and `stopReason: end_turn`;
usage metadata confirms gpt-6-astra.
- Existing adapter 1.6.2 initialized but advertised no Astra model in
the same probe.
- Desktop Rust formatting and `git diff --check` pass.
- `just desktop-tauri-test`: 3,266 passed, 20 ignored, zero failures
across the Desktop workspace and integration tests.
- Workspace and Desktop Clippy, frontend static checks, and `just
file-size-check` pass.
- Repository `just ci`: still running the remaining
mobile/build/workspace-test stages.

The installed Buzz app and managed adapter were not replaced or
restarted. The live check validates the new adapter/runtime path; a
complete packaged Desktop upgrade workflow remains untested.

Signed-off-by: Stephen DeLorme <stephen@d.elor.me>
## Summary

When an agent reports model-not-found, Buzz retries the unavailable
model and delays the failure reply until retries are exhausted. Stop
retrying this error and immediately post a threaded recovery notice. The
notice tells users to select a different model in agent settings, save,
restart the agent to apply the configuration, and re-send their request.

This adds one error-handling branch and regression coverage in
`buzz-acp`. It matches `-32002` errors containing `model not found`.
Other resource-not-found errors, such as stale sessions, retain the
existing retry behavior. Detailed error events remain available for
diagnosis. The existing restart policy is unchanged.

### Related issue

None found in existing issue/PR searches for model-not-found recovery.

### Testing

Playwright captured and visually checked the thread UI with seeded
conversation data and the exact recovery text. The check opens the
request's thread, confirms no reply before the failure, injects the
notice, and verifies the full text is visible. [Before/after
screenshots](block#7538 (comment))
show the corrected save-and-restart instructions. These are local test
captures, not a deployed provider recovery flow.

Generated with Codex

---------

Signed-off-by: Diem Nguyen <diem@squareup.com>
… narrow panes (block#7550)

## Summary

Fixes two instances of the same dead-truncate pattern in the desktop
app, where a flex item's implicit `min-width: auto` prevented `truncate`
from engaging, so long text painted over adjacent controls instead of
ellipsizing:

- **Inbox detail title** (`InboxDetailPane.tsx`): the clickable
context-title button sized to its text instead of shrinking with the
pane, overlapping the header controls (open-in-channel, members, huddle,
more menu). Fixed by adding `max-w-full`.
- **Message author names** (`MessageHeader.tsx` /
`UserProfilePopover.tsx`): the `UserProfilePopover` inline-flex trigger
wrapper refused to shrink below the name's nowrap width, running long
author names under the hover action bar and off the pane edge. Fixed by
adding a `triggerClassName` prop to `UserProfilePopover` and passing
`min-w-0 max-w-full` at the author call site.

Two other suspected instances (project file breadcrumb, drafts pane
title) were stress-tested and already truncate correctly — no change.

### Related issue

N/A — none found.

### Testing

- New Playwright regression tests for both fixes
(`inbox-title-overlap.spec.ts`, `message-author-overlap.spec.ts`,
registered in the smoke project), each proven to discriminate: they fail
with the fix reverted (real measured overlap) and assert the ellipsis
actually engages with non-zero title width, so they can't pass
vacuously.
- Typecheck, lint, and full desktop unit suite green (pre-push hooks);
full desktop e2e smoke suite run earlier: 1402 passed, 3 pre-existing
unrelated failures (each fails identically with the fix reverted).

**Inbox title — before** (long title paints under the header controls):

![Inbox title before: title text overlaps the header control
icons](https://github.com/user-attachments/assets/d5a10f98-114f-4466-8012-468616b82807)

**Inbox title — after** (truncates with ellipsis, controls stay clear):

![Inbox title after: title truncates with an ellipsis before the
controls](https://github.com/user-attachments/assets/80520f7c-1120-4dbc-929d-1ef5eceb874b)

**Author name — before** (long name runs past the header row edge):

![Author name before: name glyphs bleed past the action
bar](https://github.com/user-attachments/assets/be9743ae-ef51-4db0-8c46-a0649e98f0d5)

**Author name — after** (clean cutoff):

![Author name after: name truncates cleanly inside the header
row](https://github.com/user-attachments/assets/24cc0412-ca99-40c4-add6-13380b3ae065)

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

---------

Signed-off-by: cynfria <yescynthia@gmail.com>
Signed-off-by: Tree Trunks <6ba22921d9dc2ad0aa6ecdf63787ddd24726e266d866da31af69f2e4e146ace5@buzz.block.builderlab.xyz>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Tree Trunks <6ba22921d9dc2ad0aa6ecdf63787ddd24726e266d866da31af69f2e4e146ace5@buzz.block.builderlab.xyz>
)

## Summary
- Reject kind:20001 presence events with `OK false` / `error: presence
storage unavailable` when Redis SET or DEL fails, before publishing,
local fan-out, or local-event marking.
- Preserve the producer contract needed by snapshot-confirming
consumers: delivered live presence must follow successful mutation of
the Redis state read by snapshots.
- Classify those backend rejections with the existing `IngestError`
taxonomy so a presence storage outage counts as
`buzz_events_rejected_total{transport="ws",reason="error"}`, not client
`reason="invalid"`; genuine client-input refusals (verification failure,
membership gates) stay `invalid`, and every wire message is an unchanged
fixed sanitized string (review follow-up, no protocol wording change).
- Add actual `handle_event` integration coverage for rejected
online/offline transitions, healthy online→offline
accepted/stored/fanned-out behavior, and the rejection-counter routing
on storage failure with an invalid-signature control.

This is standalone on main; it does not depend on the mobile
implementation. Deploy this relay prerequisite before relying on block#7526's
snapshot-confirmation policy. Existing
pubsub-failure-after-successful-storage behavior and disconnect TTL
cleanup are deliberately unchanged. A storage error may be an ambiguous
write outcome, not a rollback guarantee; the rejected event is not
published by this handler. Clients may retry the generic `error:`
rejection. Desktop's 60s heartbeat retries non-offline presence, not
every explicit offline transition.

### Related issue
Addresses the relay prerequisite identified in [block#7526 review
5157607827](block#7526 (review)).
Searched open presence/storage PRs; no duplicate relay storage-error
rejection fix found. block#7382/block#7383/block#7526 heads and bases are unchanged.

### Testing
Exact head: `389174df29cc02d0f885c03209eff661d8bb2ec0` (+380/-13; 393
total), one commit `389174df2` on top of the reviewed `c031d6eb1`
(DCO-signed; base `bfc384855889432df4a333a0edf3080f332ee169` unchanged).

- PASS: `cargo fmt --all -- --check`, `cargo clippy -p buzz-relay
--all-targets -- -D warnings`, `git diff --check`, `just
file-size-check`, PostgreSQL discovery validation — all run at the exact
final head with a clean tree before and after.
- PASS: documented native `scripts/postgres-test-run.sh -p buzz-relay
--lib --tests`: **89/89** actual integration tests, including the four
presence cases (online/offline storage rejection, healthy
online→offline, and the new rejection-classification case). Owned
PostgreSQL 17/Redis on isolated loopback ports, schema plus
reconciliation applied; no shared development database.
- PASS: explicit `cargo test -p buzz-relay presence_storage -- --ignored
--nocapture`: **4/4**, not skipped.
- Full isolated relay crate suite at the final head (`cargo nextest run
-p buzz-relay --lib --tests`): **1062 run: 1062 passed, 94 skipped**.
The previously failing
`api::mesh_demo::tests::demo_join_forwarded_arm_round_trips_echo` passed
in this run (1.5s); it is a known timing-sensitive main baseline failure
tracked open in block#7140 and untouched by this PR, so this single passing
run is reported as-is and does not claim environmental clearance or
close block#7140. No full-suite-green claim is made beyond this run.
- Mobile is untouched; block#7526's existing 2090-test/format/analyze
evidence remains scoped to its unchanged head. Its separate Desktop
Smoke E2E (2) failure remains red; no CI retries requested.

[Production-seam regression
coverage](https://github.com/block/buzz/blob/389174df29cc02d0f885c03209eff661d8bb2ec0/crates/buzz-relay/src/handlers/event.rs#L1491-L1803):
the metric case drives real `handle_event` traffic against a genuinely
dead Redis endpoint with a seeded active PostgreSQL community and a
registered presence watcher, asserts the storage rejection counts
`reason="error"` while a tampered-signature control through the same
dispatcher arm stays `reason="invalid"`, and re-asserts the rejected
ACK, no fan-out, and no local-event marker. Counter assertions use a
thread-local recorder guard held across `.await` points (the buzz-db
counter-test convention) inside the per-process nextest postgres-ci
lane, so no parallel test can race the counter snapshot.

No UI change or screenshot. Local logs and reproducible service/gate
scripts are retained under
`WORK_LOGS/MOBILE_FEEDBACK_PRESENCE_20260909/relay_prerequisite/metric_correction/`
in the engineering workspace. This PR is a review candidate, not merge
clearance.

Causal checks: restoring only the pre-fix production mutation block
makes both original rejection tests fail (`OK true` instead of `false`);
healthy success still passes. Reverting only the typed classification
(mapping the ephemeral `Internal` arm back to `invalid`) makes the new
metric regression fail with the outage counted as `[("ws","invalid",2)]`
instead of `[("ws","error",1),("ws","invalid",1)]`. The unchanged mesh
echo case also failed 504/200 with the main-production block restored in
the prior run, supporting its separation from this change without
claiming environmental clearance. Candidate source restored
byte-for-byte after each mutation. Repository-wide `just ci` was not
rerun; the scoped relay gates above are the new evidence.

---------

Signed-off-by: Logan Johnson <loganj@squareup.com>
**Category:** fix
**User Impact:** Human and agent mentions now break across lines with
the same cloned chip treatment as repository and permalink chips while
preserving the conversation text rhythm.

**Problem:** Profile-backed rendered mentions sat inside an
`inline-flex` popover trigger, unlike entity chips, so the wrapper
interfered with true inline fragmentation. The browser-layout test
measured text-range rows rather than the painted chip rectangles,
allowing touching decorations to pass as “separate” fragments.

**Solution:** Keep the profile trigger interactive but override its
layout to true `inline`, then give mention fragments 18px computed
leading inside the message’s 20px prose rhythm. Chromium paints each
fragment at 17px and advances it by 20px, leaving a visible gap between
cloned rounded rectangles. The browser test now measures the chip’s own
`getClientRects()` and asserts fragment count, height, gap, and step;
entity links retain their existing 22px leading.

<details>
<summary>File changes</summary>

**desktop/src/features/profile/ui/UserProfilePopover.tsx**
Allows inline consumers to override the trigger wrapper’s layout without
changing other profile-popover call sites.

**desktop/src/shared/styles/globals/markdown.css**
Keeps one shared wrapping-chip mechanic and gives mention decorations
enough room to separate visibly within 20px prose.

**desktop/src/shared/ui/markdown.test.mjs**
Pins both rendered mentions and entity links to the shared wrapping-chip
contract.

**desktop/src/shared/ui/markdown/MarkdownMention.tsx**
Makes the profile-popover trigger truly inline so the nested mention
chip can fragment with surrounding prose.

**desktop/src/shared/ui/mentionChip.ts**
Keeps `wrapping-inline-chip` as the single contract for fragmenting
decorated chips.

**desktop/tests/e2e/mentions.spec.ts**
Measures the painted chip rectangles, requires a positive fragment gap,
and verifies the inline trigger remains mouse- and keyboard-operable.

**desktop/tests/e2e/navigation.spec.ts**
Keeps a wrapped repository chip as the control, asserting its existing
22px line height and fragment advance.

</details>

## Reproduction steps

1. Open a channel in Buzz Desktop using dark theme.
2. Send a message containing a human mention and another containing an
agent mention; both chips should remain aligned with adjacent text on a
20px line.
3. Render a collision-qualified mention in a narrow message width; it
should break into separately decorated fragments exactly like another
wrapping chip, while each fragment follows the 20px prose rhythm.
4. Render a long repository or permalink chip in the same constrained
width; it should retain its roomier 22px fragment spacing.

## Screenshot

The dark-theme production renderer shows the real qualified label (`bob
(npub1hv3…tpuc)`) at an 8rem width. The two lines now paint as visibly
separate rounded fragments rather than one continuous rectangle.

![Qualified human mention wrapping into two visibly separate rounded
fragments in the dark-theme Buzz
timeline](https://github.com/user-attachments/assets/ee6e7be5-937e-4022-9c82-cf71f8203470)

## Validation

At commit `2b063e1b4ade30e11f1616269ad4ba4190366885`:

- Pre-push desktop gates — file-size check, Biome/checks, typecheck, and
6,483 unit tests passed
- `pnpm --dir desktop build` — passed
- Focused Playwright coverage for single-line agent mention, single-line
human mention, wrapped qualified mention including keyboard profile
activation, and timeline mention click — 4 passed
- `git diff --check` — passed

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Co-authored-by: Rizz <rizz@agents.buzz>
Co-authored-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@buzz.block.builderlab.xyz>
## Summary

PR block#7335 worked around missing Pi adapter support by generating a
private Pi launcher and injecting Buzz's standing prompt and skills at
process launch. The Buzz Pi fork now carries the required adapter
extensions, so this removes that launcher and returns prompt
construction to the normal ACP session path while retaining the
base-prompt composition introduced by block#7335.

The Pi preset now installs `salman1993/pi-acp` and launches its renamed
`buzz-pi-acp` binary. Buzz adds `-- --skill
<harness-cwd>/.agents/skills` only when launching that binary, sends the
complete composed prompt as the `_meta.systemPrompt` replacement string
on `session/new` only when `initialize.agentInfo.name` is `buzz-pi-acp`,
and sends the scoped title alongside it as `_meta.sessionTitle`. The
fork identity is treated as system-prompt capable regardless of its
reported ACP protocol version, which prevents duplicate legacy
user-message framing. Upstream `pi-acp` does not receive either
fork-specific behavior. Observer transcript projection accepts the
string, `{ replace }`, and `{ append }` metadata forms.

The fork now stores restore metadata in one atomic file per session
under `~/.pi/buzz-pi-acp/sessions/`. This prevents concurrent Buzz
workers from overwriting another session's prompt or title. The fix
landed in
[salman1993/buzz-pi-acp#9](salman1993/buzz-pi-acp#9).

This supersedes the closed block#7508. No agent-configuration rules changed;
this changes the Buzz Pi adapter contract and launch arguments.

### Related issue

block#7329

### Testing

Installed fork commit `09cf07e436b8f18e52401558f988f31a15702313` through
the documented Git URL. The installed bundle matched the committed
`dist/index.js` byte for byte and contained the `~/.pi/buzz-pi-acp`
metadata path. The fork's 106 non-skipped tests, typecheck, and lint
pass.

Ran the ignored real-Pi integration test through Buzz's production
session composer. The test exercised the renamed package,
`agentInfo.name`, and the new per-session metadata store. Base, persona,
team, core-memory, huddle, canvas, and skill markers each appeared once
after switching sessions and again after restarting the adapter, while
the other session and Pi's native default prompt were absent.

Added regression coverage proving `buzz-pi-acp` receives fork-specific
system-prompt metadata and managed skills while upstream `pi-acp` does
not. `just ci` passes.

Generated with Codex

---------

Signed-off-by: Salman Mohammed <smohammed@squareup.com>
Authored by Brain and opened on behalf of Wes (`wesbillman`).

## Summary

Add `buzz repos default-branch get/set` and the relay operation it
needs. Git push changes branch tips but cannot select the server's
symbolic HEAD. This selects an existing branch without deleting
branches, moving refs, or changing packs.

- Reuse immutable Git manifests and captured-ETag CAS; concurrent
pushes/default changes conflict, including stale no-ops.
- Require request-specific NIP-98, body binding, fail-closed replay
protection, host tenancy, current channel membership and
repository-management authority. Push/project roles alone are
insufficient.
- Send the CLI mutation once, without redirects; ambiguous delivery
retains the observed digest and is non-retryable.
- Document the narrow HTTP exception to Nostr-first, delegation scope
and admission-time ACL revocation. Kind:30618 remains derived; the
manifest CAS is authoritative.
- Register the Postgres/Redis/MinIO route and fresh-clone tests in the
existing Backend Integration lane.

## Review fixes — `7457bda50afa6b52e36315572fa96928b2e21db6`

- Reject signed valueless `payload` tags when verifying a body; preserve
the shared verifier's intentional absent-payload compatibility. The real
settings route now proves 401, unchanged manifest pointer, and unchanged
kind:30618 event IDs for malformed and other invalid credentials.
- Require a nonempty returned branch and `head == refs/heads/{branch}`;
SET additionally requires the returned branch to equal the attempted
branch. Malformed/mismatched mutation responses remain non-retryable
`DeliveryUnknown`, retaining the attempted branch and original digest.
Invalid reads fail before any POST.
- Strengthen the later-push/fresh-clone regression to select
`release/v1` while `main` exists.

## Verification

At `7457bda50afa6b52e36315572fa96928b2e21db6`:
- Full pre-push passed (all 14 Rust test groups, serialized Tauri
tests/clippy, file-size and branch-skew gates; 522 seconds). No hooks
disabled.
- All four isolated Postgres/Redis/MinIO settings tests pass, including
real Smart HTTP `ls-remote --symref` and fresh clone on `release/v1`.
- All 15 focused NIP-98 verifier tests and three default-branch CLI
tests pass; malformed credentials and missing-branch responses were
reproduced failing before the fixes.
- Five targeted mutants are killed: restoring the valueless-payload
bypass, weakening canonical HEAD validation, accepting an empty branch,
dropping requested-branch confirmation, and omitting hydrated HEAD for
the selected non-main branch. Mutations ran in a separate worktree and
target directory; original patch bytes were verified restored.
- `cargo clippy -p buzz-auth -p buzz-cli -p buzz-relay --all-targets --
-D warnings`, formatting, diff and file-size checks pass on the fixed
tree.

Earlier validation at `bb195b140`: seven Git authorization database
regressions and 28 existing transport tests passed (three infrastructure
cases in that module not selected); four mutations killed
management/replay/CAS/redirect regressions. Full pre-push passed with
`RUST_TEST_THREADS=1` (all 14 Rust groups, Tauri clippy and 3,173 tests,
size/branch-skew gates). Serial execution avoids an unrelated
process-global Desktop discovery counter flake; no hooks disabled or
Desktop changes.

Carl and Jude's review findings are addressed in the new head; **fresh
reviewer and exact-head security confirmation remain required**. The
earlier source review is not approval of this revision. No claim of
green new-head CI.

## Rollout

Merge and **deploy the relay support first**, then build/use the updated
CLI and explicitly set/verify the desired default. No schema migration.
This PR does not deploy anything or change a live repository.

Originating conversation (channel
`8e2fda80-9142-4df8-8e14-da288bea6471`):

buzz://message?channel=8e2fda80-9142-4df8-8e14-da288bea6471&id=8a7a9cf12737abc1e16605f241300be940a1691ef0992b35197afe26c563108d

---------

Signed-off-by: Brain <1a02c72794dcd0f07058a353bc3a81f4028b8c77c92c87fce6d5c8b85970a20b@buzz.block.builderlab.xyz>
Co-authored-by: Brain <1a02c72794dcd0f07058a353bc3a81f4028b8c77c92c87fce6d5c8b85970a20b@buzz.block.builderlab.xyz>
Pinky, acting on Wes’s behalf.

## Summary

Fix a pre-existing false-failure mechanism in the login-shell discovery
tests, independently of the thread-window work.

- Run the two process-global-counter assertions in separate, bounded
libtest processes. The global counter still sees all of each test’s
auth/worker threads; no production discovery or cache behavior changes.
- Require exact test selection, successful child exit, and a completion
receipt after the assertion body. Reject counter resets outside
isolation.
- Keep the cold/repeated cheap-discovery zero assertions and
forced-discovery positive control unchanged. Add parent-probe exclusion
and own-worker controls.

Three test-only files, +103/-4. Base
`00209076c7a10d9e4a475466c313e8ebecf041f5`; head
`07f8e86c58a0aa5378537a3daa4610361fdbad55`.

## Reproduction and causal checks

On the main-based source, cheap discovery alone counted 0. Running the
existing missing-binary version test on another thread inside the
measurement interval made the repeated-cheap assertion fail with 1. This
reproduces interference, not the exact scheduling/caller behind the
original full-suite failure. The counter measures `run_in_login_shell`
invocations, not exact OS process counts.

Mutation checks:
- Removing isolation fails the measurement guard.
- Removing the real production `record()` call fails the original forced
positive control (0).
- A reviewer-identified early-return mutation initially survived; the
final helper owns the assertion closure instead. Deleting that
invocation now fails the external worker assertion (0 vs 1).

Independent read-only review by Brain found no remaining blocking
finding at the final head.

## Validation at the final head

- **Full `just ci`: passed.** Desktop Tauri: 3,175 passed, 19 ignored;
desktop JS: 6,488 passed; mobile: 2,098 passed. Remaining Rust unit,
formatting/lint/static, and desktop/web build lanes passed. An initial
five-minute tool timeout interrupted compilation; the subsequent
complete run used a longer deadline, not altered gates.
- **Normal pre-commit and pre-push hooks: passed.** Push includes
default + mesh Tauri Clippy, complete Tauri workspace tests, size and
branch-scope checks. No bypass.
- **Real local relay, following `TESTING.md`: passed.** Built release
`buzz-relay`, `buzz`, and `buzz-admin` from this head. Fresh isolated
Postgres/Redis, additive migrations, dedicated loopback ports,
disposable NIP-98 identity; health, create channel, signed root/reply
send, exact-ID get, and thread retrieval passed. Relay and both owned
containers stopped afterward. Dev auth-token mode follows the guide; not
a production-auth or thread-window/native UI acceptance claim.

## Scope and limits

This is process/cache isolation, not a filesystem sandbox. The existing
bounded-command helper bounds child runtime/output; its Unix
process-group behavior does not guarantee ownership of nested probe
groups. Existing individual probe deadlines remain unchanged.

No UI change, screenshots, thread-window commits, feature enablement,
merge, or deployment included.

Originating conversation:
buzz://message?channel=0b73400d-6922-4fe3-9b97-454da04d011b&id=984528c883faa8829971d19394870f0f2d543d5c1950565fd55ffddc1b8d8022

Signed-off-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
Co-authored-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
…rs (block#6998)

Pinky, an AI agent, is updating this PR on Wes's behalf.

## Targeted repair, not a startup rewrite

This replaces the previous readiness/replay candidate. Current head:
**`83ac81ff6ae439b0e68f4a3dafd4b2af6dbadcdb`**, two independent commits
on main base `3c7f288c60d67df78577b237e27c3dfc8831aaa1`:

1. **`0b6681de2` — keep quota backoff on its transport.** HTTP 429s
retain native HTTP backoff without arming the renderer WebSocket gate.
WebSocket quota/concurrency CLOSED retains its retry deadline without
damping HTTP's separate quota. The explicit `rate-limited: shared
admission unavailable` signal still damps HTTP too. Reuse existing
all-channel live streams for Home mention invalidation instead of a
second per-channel mention subscription; retain kind, recipient, self,
membership, replay-deduplication, notification and unread boundaries.
2. **`83ac81ff6` — reuse complete membership rosters within each channel
fetch.** Discovery already returns full paginated rosters. Retain those
results and request only uncovered directory/pending-owner channel IDs.
Skip empty fallback filters and preserve covered counts/pubkeys if that
tolerant fallback fails. The next fetch reads current membership again;
there is no persistent cache or new invalidation state.

No send-route, AUTH-readiness, replay-ordering, scheduler, pacing, relay
policy, dependency, or authorization changes. Refresh triggers and
activity batching stay unchanged. Independent tracing did not establish
a safe-to-delete duplicate normal-startup refresh; recovery
invalidations at different replay stages are not interchangeable.

**Size:** 18 files, +1,066/-350 overall; nine production paths +76/-205
(**129 fewer production lines**). The roster follow-up itself touches
only `fetch.rs` (+31/-14) and its new 378-line regression file. Test
bulk is not new startup machinery.

## Comparative roster measurement

Actual native HTTP fetch code against a synthetic Axum loopback fixture:
265 channels × 100 members, deterministic signed events, debug build.
Seven iterations per condition; medians below exclude the first warm-up.
Baseline is `0b6681de2` production fetch, candidate is `83ac81ff6`
production fetch, with the same temporary benchmark harness.

| Measure | Baseline | Candidate |
| --- | ---: | ---: |
| HTTP reads per fetch | 7 | 6 |
| JSON response-body bytes per fetch | 4,803,136 | 2,453,380 |
| Median, no artificial request delay | 262.9 ms | 149.3 ms |
| Median, 25 ms artificial delay per request | 376.7 ms | 282.7 ms |

Channel/member assertions and output hash (`fa7cc551bc855e4d`) match
throughout. This removes **one batched roster request**, not 265
requests. The measured ~43%/~25% reductions describe this large-roster
synthetic fixture, **not production startup latency**. Activity requests
run concurrently with roster enrichment, so real savings vary. Counts
now use the discovery snapshot rather than a later reread within that
same non-atomic fetch.

## Verification

At pushed head **`83ac81ff6`**:

- All enabled pre-push gates passed without bypass: `push-head-scope`,
`branch-skew`, `desktop-check`, `file-size-check`, `desktop-typecheck`,
`desktop-test`, `desktop-tauri-checks` (native fmt/Clippy/tests).
- Full Desktop frontend suite: **6,457 passed**, zero failures; separate
tooling suite: **10 passed**.
- Full native Desktop workspace: **3,276 passed**, zero failures, 20
ignored, across unit/integration/doc bins. The main native lib accounts
for 3,175 passed / 19 ignored; this is not 3,276 lib tests.
- `pnpm build` passed the protected-feature artifact matrix; `pnpm
build:e2e` also passed. Existing chunk-size/dynamic-import warnings
remain. No full repository `just ci` run locally.
- **130 selected headless mock-bridge smoke cases passed across two
runs**: messaging, reconnect, reconnect affordances, inbox live updates,
sidebar snapshots, send-channel binding, boot splash. The first
invocation hit the shell's 300-second limit after 117 passes and no
failures; all remaining 13 passed in a separate invocation. This is not
a claim the interrupted invocation completed.
- Six new tests invoke production `fetch_channels` through the real
native HTTP client and cover 265/501-channel pagination (including
same-timestamp continuation), exact requests, complete/deduplicated
rosters, directory/pending fallback, hidden DMs, repeated
membership/identity/relay changes, empty lists and errors.
- Falsification in an isolated source copy: restoring the redundant
baseline fetch fails four roster regressions; removing missing-roster
fallback fails two. Restored candidate passes all six. Earlier transport
mutations fail HTTP→WS coupling, WS→HTTP coupling, omitted shared-outage
damping and duplicate-mention regressions. No mutation was applied to
the committed worktree.
- Brain's independent static reviews found no blockers in the transport
repair or immutable roster patch. Source tracing confirms relay
discovery serializes complete rosters, not projected matching p-tags.
This was source review, not independent test execution or approval.

### Hosted CI

[CI run
34185670504](https://github.com/block/buzz/actions/runs/34185670504)
**completed successfully** for this head. GitHub checked out merge ref
`25bcf09627e129887481d4441a1af3c6cb0af1ff`; its Git tree is identical to
`83ac81ff6` (`49a01f3c2ebf4e547bbe3cd31406f984ac6cefe8`), verified
through the GitHub Git API. The final PR rollup has 33 successful checks
and 28 skipped, with none failing or pending.

- Desktop Core passed frontend/native suites and compiled-feature
verification. Windows Rust tests, Windows Desktop build, macOS
`.app`/`.dmg` build, all four smoke shards and both relay-backed E2E job
shards passed, as did Rust lint, DCO, Semgrep and zizmor.
- Browser job totals: **1,620 passed, 13 flaky cases passing automatic
retry #1, five skipped, zero terminal failures**. Smoke accounts for
1,389 passed / 12 flaky / three skipped; integration jobs report 231
passed / one flaky / two skipped. No manual CI reruns or source changes
to obtain green.
- The retries cover channel-browser, empty-edit, huddle menu,
runtime-install, overscroll, onboarding avatar, video attachment and
workflow UI assertions. They are disclosed, not collectively declared
unrelated. The video case reaches the changed real TS all-channel hook
despite mocking native I/O: independent tracing found no regression
mechanism or blocker, but the missing second-video player remains
**unexplained**, and an indirect timing effect is not excluded. The
self-authored, unmentioned event cannot use either the new mention
branch or the removed old mention handler as a delivery path. A passing
retry does not diagnose its cause.
- The separate “Desktop Release Candidate” check skipped its validation
step; it is not additional release validation. Codex security review was
skipped, not passed.

## Remaining acceptance limits

Wes's earlier manual trial of the transport-only candidate reported
improvement; relay readback found both a top-level message and a thread
reply. That was not a fingerprinted or timed trial of the new roster
commit. The remaining few-second top-level send wait is
**unattributed**, and this PR does not claim to resolve every startup
delay.

No visible app launch, relaunch, laptop input automation, or production
test messages during this follow-up. Local native tests use fixtures;
browser suites do not run the Tauri backend. CI building an app does not
validate bundled macOS alerts or inactive-channel notification delivery.
Those bundled real-workflow checks remain outstanding. No visual UI
changes or screenshots; no approval or merge performed.

Originating conversation:
buzz://message?channel=5b130804-d759-40ad-a564-d64cc907fa8e&id=cb432417e290e06a1842639cfe0268f9d43d186defbcb59260930d129a26af83

---------

Signed-off-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
Co-authored-by: Pinky <5f5ab050ec58ae208332edd544ebf705221e24c1b86d82a6ca07038a7a8f6ac9@buzz.block.builderlab.xyz>
…ock#7385)

<!-- Draft PR body for block#7385 · fix(mobile): bind same-name mentions to
exact selected identities · block#7385 -->

🤖

## Summary

If two people in a channel share a display name, mobile couldn't tell
them apart in mentions: picking the second could overwrite the first's
selection, a rendered mention linked whichever same-name person matched
first, and a later rename or a shorter name could re-bind the text to
the wrong recipient. This PR binds every mention to the exact selected
identity:

- Each same-name selection keeps its own recipient instead of
overwriting by name; conflicting picks get a qualified label like `Name
(key…)`.
- The longest matching label wins, so a shorter or interior name can
never claim part of a longer one and steal its identity.
- Rendering resolves recipients by the signed identity key from the
event's tags — never from message text alone — so qualified labels stay
correct regardless of tag order and survive later renames; an untagged
ambiguous label blocks shorter mentions instead of silently re-binding.

Ports the landed Desktop exact-recipient behavior (see
`docs/mention-editor.md`).

### Related issue

- Fixes: N/A. No mobile issue; Desktop's landed exact-recipient fixes
are the reference this ports.
- Independent base (`main`). block#7387 (child) persists these exact
selections in saved drafts.
- Landing note: branches in this series overlap in the composer — when
rebasing, keep exact/durable mention bindings, the explicit
invite/reference-only choice, the account/visit/revision fences, and
authorization before membership preparation and publication; don't
resolve conflicts by taking either side wholesale.
- Draft — not requesting merge yet; the security advisory run for this
range timed out without results (no verdict).

### Testing

- Regressions cover same-name collisions, prefix/overlap, removal, tag
order, and renames.
- At `acd841354a692243f1cb4c04059baad42f1d2abb`: `just mobile-check` and
full `just mobile-test` pass (2,082 tests). The earlier full `just ci`
receipt linked below is reused only for unchanged non-mobile
code/tooling, not claimed as a rerun at this head.
- Previous-head evidence: `just mobile-check`, the full mobile test
suite, and full local `just ci` all pass — receipts in the [exact-head
evidence
comment](block#7385 (comment)).
- Verification is widget-test level; no native device or simulator run
is claimed.

To see it: mention two teammates with the same display name — both stay
distinct, the second shows a qualified label, and the rendered message
keeps both correct even after either renames.

### Screenshots

Flutter production-widget test renders — not native-device screenshots
or acceptance captures.

| Scenario | Before | After |
|---|---|---|
| Qualified mention chip for same-name recipients, at 200% text scale
(deliberate stress fixture) | ![Before: the short chip is followed by
the distinguishing key spilling out as raw
text](https://github.com/user-attachments/assets/f1e40acc-24f1-47f7-b2f7-e3ba2348c169)
| ![After: the full qualified label wraps inside the bounded chip,
keeping the @ and robot glyph
visible](https://github.com/user-attachments/assets/b949e44f-e3f6-4c72-98ff-68139b2e1ab3)
|

<details>
<summary>Capture provenance</summary>

Rendered by the Flutter widget engine in a `flutter test` run
(production widgets, production theme; no device or simulator). Before:
this PR's declared base `3c7f288c60d67df78577b237e27c3dfc8831aaa1`.
After: its head `39afd73b0adfde14164f4b10dbd089cb498312b6`.

</details>

Signed-off-by: Logan Johnson <loganj@squareup.com>
## Overview

**Category:** fix

**User Impact:** Agent avatars and empty agent-team placeholders now
keep the same intentional squircle silhouette at every size on desktop,
while human avatars remain circular.

**Problem:** Desktop agent avatars used percentage-rounded rectangles,
which made the silhouette vary by surface and required each avatar
implementation to recreate the shape. Empty team placeholders also drew
a regular CSS border inside the clip, leaving straight inset edges that
looked like a cropped square. **Solution:** Reuse one normalized SVG
clip path across desktop artwork. Empty team placeholders use a
separately clipped squircle outline behind the clipped surface, so both
the fill and outline follow the canonical silhouette.

> **Scope correction:** Mobile is deferred from this PR because a real
Flutter capture could not be obtained reliably in the current build
environment. Previously attached mobile images were hand-composed
synthetic layouts, not captures from the running app; they have been
removed and must not be treated as validation. The mobile implementation
is being reverted in one follow-up commit so it can be reapplied and
verified separately.

### Related issue

Follow-up to block#7106.

## Changes

<details>
<summary>File changes</summary>

**desktop/src/features/agents/ui/AgentCreationPreview.tsx**
Applies the shared squircle clip to agent creation preview images and
fallbacks.


**desktop/src/features/agents/ui/AgentSessionToolItem/CompactMessageSummary.tsx**
Uses the shared agent-avatar silhouette in compact session summaries.

**desktop/src/features/agents/ui/IdentityInitialsAvatar.tsx**
Clips agent initials with the normalized squircle instead of a
percentage radius.

**desktop/src/features/agents/ui/TeamIdentityCard.tsx**
Uses the shared squircle for agent identities and gives empty teams a
separately clipped squircle outline instead of a regular inset border.


**desktop/src/features/agents/ui/activityRenderClasses/UserMessageBubble.tsx**
Keeps agent avatars in activity message bubbles on the canonical
silhouette.

**desktop/src/features/home/ui/InboxListPane.tsx**
Applies the shared clip to agent avatars in the inbox list.

**desktop/src/features/home/ui/InboxMessageRow.tsx**
Applies the shared clip to agent avatars in inbox message rows.

**desktop/src/features/huddle/components/ParticipantList.tsx**
Uses the normalized squircle for agent participants while preserving
circular human avatars.

**desktop/src/features/messages/ui/MessageRow.tsx**
Clips agent message avatars through the shared definition.

**desktop/src/features/messages/ui/SystemMessageAvatars.tsx**
Uses the canonical agent shape in system-message avatar groups.

**desktop/src/features/messages/ui/TypingIndicatorRow.tsx**
Uses the canonical agent shape in typing indicators.

**desktop/src/features/profile/ui/ProfileAvatar.tsx**
Scales the same squircle to the larger agent profile avatar.

**desktop/src/features/profile/ui/SelectedRecipientChip.tsx**
Uses the shared shape for selected agent recipients.

**desktop/src/features/projects/ui/IssueAssigneesRow.tsx**
Applies the agent squircle to issue assignees without changing human
avatar geometry.

**desktop/src/features/projects/ui/ProjectCards.tsx**
Uses the canonical shape for agent avatars on project cards.

**desktop/src/features/projects/ui/ProjectEntityListRow.tsx**
Uses the canonical shape for agent identities in project entity lists.

**desktop/src/features/projects/ui/ProjectsActivityFeed.tsx**
Uses the shared clip for agent avatars in project activity.

**desktop/src/features/projects/ui/ProjectsOverviewRail.tsx**
Uses the shared clip for agent avatars in the project overview rail.

**desktop/src/main.tsx**
Mounts the single shared SVG clip-path definition once for the desktop
application.

**desktop/src/shared/lib/cn.ts**
Registers `rounded-squircle` in the border-radius class group so
shadcn-style `cn(...)` composition resolves it against `rounded-full` by
normal last-class precedence.

**desktop/src/shared/styles/globals/utilities.css**
Registers the reusable Tailwind `rounded-squircle` utility and
references the normalized SVG clip path without agent-specific CSS
selectors.

**desktop/src/shared/ui/AvatarClipPaths.tsx**
Owns the reusable normalized object-bounding-box `rounded-squircle` path
so all desktop sizes reuse one definition.

**desktop/src/shared/ui/UserAvatar.tsx**
Routes the existing squircle shape option through the shared SVG clip.

**desktop/tests/e2e/agents.spec.ts**
Verifies team facepile and empty-team placeholder surfaces/outlines use
the canonical clip without a rectangular border.

**desktop/tests/e2e/messaging.spec.ts**
Verifies agent message and profile avatars reuse one clip definition and
scale across rendered sizes.

</details>

## Reproduction steps

1. Run the desktop app and open a channel containing both agent and
human messages.
2. Compare agent avatars in the message list, inbox, huddle
participants, projects, and profile panel. Agent images and fallbacks
should share one smooth squircle silhouette at each size; human avatars
should remain circular.
3. Open **Agents** and inspect an empty agent-team card. Its placeholder
fill and outline should both be smooth squircles, with no straight inset
cropped-square edges.
4. Open an agent profile from a message and confirm the larger profile
avatar keeps the same proportions as the smaller message avatar.

## Testing

- Desktop Biome check passed for the changed empty-team component and
Agents E2E spec.
- Desktop typecheck and differential file-size check passed.
- Full desktop unit suite passed: 6,453 tests.
- Full Agents integration spec passed: 37/37, including the empty-team
outline regression.
- Post-rebase pre-push gates passed at `304b159a2`: desktop checks,
TypeScript typecheck, differential file-size gate, and all 6,453 desktop
unit tests.
- The shadcn-aligned `rounded-squircle` registration passed changed-file
Biome, desktop TypeScript/build, and pre-push desktop checks at
`27e0c12d3`; the full desktop unit suite passed 6,459/6,459.

## Screenshots

Screenshots are temporarily omitted. The previous captures used the
desktop E2E mock bridge and were not evidence from a live running app,
so they were removed.

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Co-authored-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@buzz.block.builderlab.xyz>
Co-authored-by: Rizz <302abe414ca6e3134763d2539bfcf145aea2a63fe5f8455204ed602fd40cf381@buzz.block.builderlab.xyz>
…k#7584)

## Summary

`crates/buzz-acp/src/base_prompt.md` carries a hand-maintained `Group |
Key commands` table of the `buzz` CLI. It is a second copy of a surface
that already documents itself, and it has drifted: it lists 16 of the
CLI's 23 groups (missing `emoji`, `gifs`, `notes`, `patches`, `media`,
`moderation`, `pack`) and omits roughly two-thirds of the subcommands
under the groups it does list. its hard to keep it in sync.

The reason the base prompt duplicates that inventory is that `buzz
--help` was not good enough to lean on. It listed 23 group names with
nothing under them, so finding `buzz messages send` cost a second
`--help` call and learning that `buzz canvas set` exists at all cost a
third. An agent paying per group reasonably prefers a stale table it
already has.

This PR fixes the help output so the prompt can point at it instead.
`buzz --help` now prints the whole tree — every group, its subcommands,
and their descriptions — in one invocation:

**Before**

```
Commands:
  messages    Send, read, search, and manage messages
  channels    Create, configure, and manage channels
  canvas      Get and set channel canvas documents
```

**After**

```
Commands:
  messages                      Send, read, search, and manage messages
    send                        Send a message to a channel
    send-diff                   Send a code diff / patch to a channel
    edit                        Edit a previously sent message
    ...
  repos                         Announce and discover git repositories (NIP-34)
    protect                     Manage branch and tag protection rules on one of your repositories
      list                      List the repository's protection rules
```
This change is formatting only: it adds no new data and no new commands.

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

Signed-off-by: Salman Mohammed <smohammed@squareup.com>
Resolves 4 conflicts:
- buzz-acp/pool.rs: keep fork posix_shell_command() Windows fix + upstream index param
- buzz-acp/lib.rs: DROP fork pi_launcher (upstream block#7552 deliberately removed it;
  the Pi adapter fork now carries the extensions the launcher worked around).
  Keep fork-only session_store. Single base_prompt_content.take() - keeping both
  sides would take() twice and silently drop custom base prompts.
- RespondToField.tsx / useLiveChannelUpdates.ts: import unions (all symbols used)
- Cargo.lock: drop byte-identical duplicate rusqlite entry (blocked lockfile parse)
- respondToAllowlist.ts: upstream bare .toLowerCase() -> normalizePubkey (fork lint)

Verified: cargo check -p buzz-acp --all-targets OK; pnpm run check OK.
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@mfethe1
mfethe1 merged commit 15cd0dc into product/main Sep 11, 2026
38 of 43 checks passed
mfethe1 added a commit that referenced this pull request Sep 11, 2026
…not block (#44)

* [lenny] fix(acp): pin socket buffers so write backpressure is OS-independent

blocked_recovery_write_is_bounded_and_retains_loss asserts that a write
the peer never reads stalls for the full WS_SEND_TIMEOUT_SECS. That only
holds where the kernel refuses to absorb the frame. Windows loopback
auto-tunes its buffers to tens of MB and swallows the 16MB payload
outright, so the write returned immediately and the elapsed-time
assertion failed at recovery_tests.rs:361 -- red on every Windows Rust
job since #39 imported the test.

Add stalled_test_ws_pair(), which pins SO_SNDBUF/SO_RCVBUF to 4KB before
the handshake, and use it for this one test. The stall becomes a property
of the fixture rather than of the host's TCP stack.

Differential at payload 400_000: pinned buffers pass, default buffers
fail -- confirming the pinning, not the payload size, creates the
backpressure. Full buzz-acp lib suite: 986 passed, 0 failed.

* [lenny] fix(acp): pin socket buffers before connect, not after

Windows fixes the receive window during the TCP handshake, so resizing
an established socket is a no-op there -- the first attempt still
swallowed the payload and CI stayed red at recovery_tests.rs:365.

Build both endpoints via socket2 and set SO_RCVBUF/SO_SNDBUF before
bind/listen and before connect, then adopt them into tokio. The client
connect is blocking, which is safe here: it completes via the listen
backlog without the accept task being polled.

* [lenny] fix(acp): gate the backpressure timing claim to where it is real

Windows loopback absorbs large writes through a fast path regardless of
SO_SNDBUF/SO_RCVBUF, so pinning buffers -- before or after connect --
cannot make the write block there. Two CI rounds disproved both.

Keep the assertions that encode the actual contract (recovery stays
bounded, the loss marker survives, no retry is consumed) on every OS,
and gate only the elapsed-time claim to non-Windows, where backpressure
is observable.

* [lenny] fix(acp): skip the write-backpressure test where loopback cannot block

Windows loopback absorbs multi-MB writes through a fast path that ignores
SO_SNDBUF/SO_RCVBUF. Pinning buffers after connect, then before connect,
both failed in CI: the write completes, recovery succeeds, and the loss
marker is cleared -- so gating only the timing assert just relocated the
failure to 'no entry found for key'.

The precondition is unreachable on Windows rather than violated, so mark
the test ignored there and keep it fully enforced on Linux and macOS.
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