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Sync upstream through Desktop v0.5.14 - #8

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Sync upstream through Desktop v0.5.14#8
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Merge upstream block/buzz main at f956e6fe0 into the community fork while preserving the fork-specific Linux notification sound support and community workflows.

Validated locally:

  • pnpm install --frozen-lockfile
  • pnpm --dir desktop check
  • pnpm --dir desktop test
  • pnpm --dir desktop build
  • release sidecars bundled
  • Tauri Debian package built and launched on Linux

Signed-off-by: Dekan Brown dekanjbrown@users.noreply.github.com

wpfleger96 and others added 30 commits August 8, 2026 12:59
…ock#5324)

The Prompt Context modal (observer feed → check icon under sent
messages) was clipping all content and card right-padding at the dialog
edge.

**Root cause**: `PromptContextDialog` renders inside `DialogContent`,
which is a CSS grid. The child flex wrapper had default `min-width:
auto`, so the widest unbreakable token in the content (64-char hex event
IDs, `Tags: [[...]]` JSON) set the grid track width, blowing it past
`max-w-xl`. `overflow-hidden` then clipped everything at the dialog edge
— including the section cards' right padding.

**Fix**:
- `AgentSessionTranscriptList.tsx`: add `min-w-0` to the `flex
max-h-[85vh] flex-col` wrapper so the grid item can shrink below its
max-content width.
- `PromptSectionAccordion.tsx`: replace `wrap-break-word` with
`wrap-anywhere` on the body text (open and collapsed states) and the
title. `overflow-wrap: anywhere` reduces min-content width, which
`break-word` does not, letting long tokens wrap inside the cards rather
than inflating the track.

The `line-clamp-2` collapsed preview is preserved unchanged.

Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Co-authored-by: Duncan <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
…ck#5330)

## Problem

The `WelcomeComposerGuidanceLayer` in the `#Welcome` channel was
positioned with `absolute inset-x-0 bottom-full z-[-1]` — outside the
`composerWrapperRef` measurement boundary. `useComposerHeightPadding`
observes `composerWrapperRef`'s block size to set `paddingBottom` on the
timeline scroll container, but the absolutely-positioned layer didn't
contribute to that size. The banner sat directly on top of the newest
message, blocking the thread affordance on that message, and had no
manual dismiss control.

## Fix

**Overlap**: Changed `WelcomeComposerGuidanceLayer` from `absolute
inset-x-0 bottom-full z-[-1]` to `relative` (in normal flow). As a
normal-flow child of `composer-dock`, the layer's full height is now
measured by the ResizeObserver and fed into the timeline's
`paddingBottom`, so the newest message is always fully visible and its
thread affordance is always clickable while the banner shows.

**Dismiss**: Added an `X` close button
(`data-testid="welcome-composer-dismiss-button"`) on the prompt state.
Clicking fires `onDismiss`, which drives `dismissing → hidden`
immediately (same slide-down animation as the auto-dismiss path) and
marks the channel ID as completed in the session ref so the banner does
not reappear on channel re-entry within the session.

**Refactor**: Extracted the banner state machine (refs, timers,
`useEffect`s, and callbacks) from `ChannelPane.tsx` into
`useWelcomeComposerBanner.ts`. This keeps `ChannelPane.tsx` well under
the 1000-line file-size ratchet and makes the state machine
independently testable.

## Changed files

- `desktop/src/features/channels/ui/WelcomeComposerBanner.tsx` —
`WelcomeComposerGuidanceLayer` positioning fix; `onDismiss` prop;
dismiss button; `overflow-hidden` / `mb-0` / `flex-1` cleanup
- `desktop/src/features/channels/ui/ChannelPane.tsx` — remove inline
banner state machine, use `useWelcomeComposerBanner` hook, pass
`onDismiss`
- `desktop/src/features/channels/ui/useWelcomeComposerBanner.ts` — new
hook owning all banner state

---------

Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Co-authored-by: Hayt <41ea58f1e64c243627e8acde7c89be667052ee6e17d8f021c1195be4324ebf04@buzz.block.builderlab.xyz>
## Problem

A provider can return HTTP 200 with a **truncated JSON body** — cleanly
closed connection, correct framing, content cut off mid-value. Both LLM
HTTP loops treated this as a terminal error on the first attempt:
`AgentError::Llm("json: EOF while parsing a value")`, surfaced as code
-32000 at the ACP boundary, killing the agent turn before it produced
anything.

Observed live in a tb2.1 bench trial (write-compressor, tb21-twins-1):
deepseek via OpenRouter returned a truncated body, the agent died
mid-prompt with 0 turns completed, and the trial scored 0 on a provider
hiccup.

Meanwhile the same loops already retry timeouts, 429s, 5xxs, 499s, and
mid-body stream stalls — a truncated-but-complete body was the one
transient upstream fault that fell through to terminal.

## Fix

In both `post()` and `openrouter_post()`
(`crates/buzz-agent/src/llm.rs`): when the fully-received success body
fails `serde_json::from_slice`, `continue` the **existing** retry loop
instead of returning terminal — same `MAX_RETRIES` (3) bound, same
`backoff_with_jitter`. On exhaustion, the error goes through
`terminal_llm_error` so it carries cumulative duration + attempt count
like every other retried failure (previously the `json:` error carried
neither).

`post_anthropic` routes through `post()`, so
Anthropic/OpenAI/Databricks/mesh and OpenRouter are all covered.

## Why this cannot re-run a tool call

Hard requirement: tool calls are not idempotent, and this change must
not introduce any possibility of replaying one.

1. **The retry lives inside the HTTP POST helper, below the parse
boundary.** Tool calls are only ever extracted from a *successfully
parsed* response value
(`parse_openai`/`parse_anthropic`/`parse_responses`, all downstream of
these helpers' `Ok` return). A malformed body never parses, therefore no
tool call was ever extracted from it, therefore nothing downstream of it
ever dispatched.
2. **What is re-sent is the completion request itself** — the identical
`body_bytes` captured once at function entry. Sending a completion
request executes no tools; it asks the model for the next message.
3. **Same safety class as existing behavior.** The loop already re-sends
this identical request on 429/5xx/timeout/stream-stall; this adds one
more transient-fault arm to the same loop with the same bytes.

## Tests

Three new tests mirroring the existing 499/dropped-connection fixtures
(raw `TcpListener` stubs):
- `post_retries_malformed_json_body_and_succeeds` — truncated 200 body
on attempt 1, valid JSON on attempt 2; asserts success and **exactly 2**
server-side requests
- `post_exhausts_retries_on_persistent_malformed_json` —
always-truncated body; asserts exactly `MAX_RETRIES` attempts and a
terminal error carrying `json:` + cumulative/attempt context
- `openrouter_post_retries_malformed_json_body_and_succeeds` — same
recovery through OpenRouter's separate loop

Full `cargo test -p buzz-agent` green at e7a5d7b (430 lib + all
integration targets, 0 failures); `cargo fmt` + `clippy --all-targets`
clean.

Originating conversation: buzz-benchmarking channel, thread 397a992d.

Signed-off-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
Co-authored-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
## Summary

- remove the complete Welcome guidance surface when dismissal reaches
`hidden`
- preserve dismissal across the private and starter Welcome channels for
the active identity
- assert the starter channel's actual `welcome-everyone` title on
re-entry

## Why

PR block#5330 introduced two deterministic Desktop E2E failures:

- the inner banner unmounted, but `welcome-composer-guidance-layer`
remained
- the re-entry test expected case-sensitive `Welcome` while navigating
to `welcome-everyone`

The state hook also scoped completion to channel IDs while `ChannelPane`
remounts during navigation. The Welcome guidance is one experience
spanning both Welcome channels, so completion now survives that remount
while remaining identity-scoped.

## Validation

At `b577eb42edffe889f63566f2457eacea720f3593`:

- `pnpm -C desktop typecheck`
- focused Biome check for all four changed files
- E2E build
- both `welcome-everywhere banner` integration tests repeated three
times: **6/6 passed**
- mandatory pre-push desktop check, typecheck, and full desktop unit
suite: **4,535 passed**
- `git diff --check`

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
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###
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[Compare
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[Compare
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- *(derive)* Allow `"literal".function()` as attribute values

###
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[Compare
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| action | patch |
| [isomorphic-git](https://isomorphic-git.org/)
([source](https://redirect.github.com/isomorphic-git/isomorphic-git)) |
[`1.38.7` →
`1.38.10`](https://renovatebot.com/diffs/npm/isomorphic-git/1.38.7/1.38.10)
|
![age](https://developer.mend.io/api/mc/badges/age/npm/isomorphic-git/1.38.10?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/isomorphic-git/1.38.7/1.38.10?slim=true)
| dependencies | patch |
| [postcss](https://postcss.org/)
([source](https://redirect.github.com/postcss/postcss)) | [`8.5.19` →
`8.5.26`](https://renovatebot.com/diffs/npm/postcss/8.5.19/8.5.26) |
![age](https://developer.mend.io/api/mc/badges/age/npm/postcss/8.5.26?slim=true)
|
![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/postcss/8.5.19/8.5.26?slim=true)
| devDependencies | patch |

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/1) for more information.

---

### Release Notes

<details>
<summary>isomorphic-git/lightning-fs
(@&#8203;isomorphic-git/lightning-fs)</summary>

###
[`v4.6.3`](https://redirect.github.com/isomorphic-git/lightning-fs/releases/tag/v4.6.3)

[Compare
Source](https://redirect.github.com/isomorphic-git/lightning-fs/compare/v4.6.2...v4.6.3)

##### Bug Fixes

- IDB interface
([#&#8203;127](https://redirect.github.com/isomorphic-git/lightning-fs/issues/127))
([035e472](https://redirect.github.com/isomorphic-git/lightning-fs/commit/035e4725b9e6aa72d10cadc5ace20dec7ac76afb))

</details>

<details>
<summary>vitejs/vite-plugin-react
(@&#8203;vitejs/plugin-react)</summary>

###
[`v6.0.5`](https://redirect.github.com/vitejs/vite-plugin-react/blob/HEAD/packages/plugin-react/CHANGELOG.md#605-2026-07-30)

[Compare
Source](https://redirect.github.com/vitejs/vite-plugin-react/compare/f4b549822ec239799d746c030abb0b9a7d8f0a04...68c0cb8796ce18bd049c3d05c5210eaf0617eac0)

##### Fixed the react compiler preset filter to be linear
([#&#8203;1353](https://redirect.github.com/vitejs/vite-plugin-react/pull/1353))

The improved filter in v6.0.3 was non-linear and caused a performance
regression
([#&#8203;1349](https://redirect.github.com/vitejs/vite-plugin-react/issues/1349)).
The filter was changed to be linear to avoid that.

###
[`v6.0.4`](https://redirect.github.com/vitejs/vite-plugin-react/blob/HEAD/packages/plugin-react/CHANGELOG.md#604-2026-07-22)

[Compare
Source](https://redirect.github.com/vitejs/vite-plugin-react/compare/640fd358a0e82393acfce4e92e19a6ac6e1641a7...f4b549822ec239799d746c030abb0b9a7d8f0a04)

##### Fixed `$RefreshSig$ is not defined` error when running `vite dev`
with `NODE_ENV=production`

When running `vite dev` with `NODE_ENV=production`, the app errored with
`$RefreshSig$ is not defined`.
This error is now fixed.

</details>

<details>
<summary>dorny/paths-filter (dorny/paths-filter)</summary>

###
[`v4.0.3`](https://redirect.github.com/dorny/paths-filter/blob/HEAD/CHANGELOG.md#v403)

[Compare
Source](https://redirect.github.com/dorny/paths-filter/compare/v4.0.2...v4.0.3)

- [Document safe handling of file list outputs in
workflows](https://redirect.github.com/dorny/paths-filter/pull/326)
- [Escape multi-line filenames in list-files shell and csv
output](https://redirect.github.com/advisories/GHSA-7hc6-8hq5-9q2m)
- [Add 'some-with-excludes' predicate
quantifier](https://redirect.github.com/dorny/paths-filter/pull/322)
- [Add contents permission to PR
example](https://redirect.github.com/dorny/paths-filter/pull/248)
- [Scope base-ignored warning to API
path](https://redirect.github.com/dorny/paths-filter/pull/319)
- [Update outputs in readme to account for the 'every'
predicate-quantifier](https://redirect.github.com/dorny/paths-filter/pull/247)

</details>

<details>
<summary>isomorphic-git/isomorphic-git (isomorphic-git)</summary>

###
[`v1.38.10`](https://redirect.github.com/isomorphic-git/isomorphic-git/releases/tag/v1.38.10)

[Compare
Source](https://redirect.github.com/isomorphic-git/isomorphic-git/compare/v1.38.9...v1.38.10)

##### Bug Fixes

- **statusMatrix:** do not traverse symlinks in GitWalkerFs
([#&#8203;1215](https://redirect.github.com/isomorphic-git/isomorphic-git/issues/1215))
([#&#8203;2382](https://redirect.github.com/isomorphic-git/isomorphic-git/issues/2382))
([90ea101](https://redirect.github.com/isomorphic-git/isomorphic-git/commit/90ea101d329daa84b99cc0140a6275896ebbaf68))

###
[`v1.38.9`](https://redirect.github.com/isomorphic-git/isomorphic-git/releases/tag/v1.38.9)

[Compare
Source](https://redirect.github.com/isomorphic-git/isomorphic-git/compare/v1.38.8...v1.38.9)

##### Bug Fixes

- Preserve binary files when writing conflicted working tree
([#&#8203;2380](https://redirect.github.com/isomorphic-git/isomorphic-git/issues/2380))
([b41b1ab](https://redirect.github.com/isomorphic-git/isomorphic-git/commit/b41b1abc3df87326e639b49d0694915540d6dfb5))

###
[`v1.38.8`](https://redirect.github.com/isomorphic-git/isomorphic-git/releases/tag/v1.38.8)

[Compare
Source](https://redirect.github.com/isomorphic-git/isomorphic-git/compare/v1.38.7...v1.38.8)

##### Bug Fixes

- unsafe symlink from cherry pick
([#&#8203;2377](https://redirect.github.com/isomorphic-git/isomorphic-git/issues/2377))
([4664c8e](https://redirect.github.com/isomorphic-git/isomorphic-git/commit/4664c8e1147c3c7ba87c027e92093d28607ef4c0))

</details>

<details>
<summary>postcss/postcss (postcss)</summary>

###
[`v8.5.26`](https://redirect.github.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8526)

[Compare
Source](https://redirect.github.com/postcss/postcss/compare/8.5.25...8.5.26)

- Fixed `list.split()` regression (by
[@&#8203;lazerg](https://redirect.github.com/lazerg)).
- Track symlinks in path protection in source map loading (by
[@&#8203;drengir1](https://redirect.github.com/drengir1)).

###
[`v8.5.25`](https://redirect.github.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8525)

[Compare
Source](https://redirect.github.com/postcss/postcss/compare/8.5.24...8.5.25)

- Fixed 8.5.17 visitor regression.
- Fixed `list.split()` for non-string values (by
[@&#8203;amir-rezaei](https://redirect.github.com/amir-rezaei)).

###
[`v8.5.24`](https://redirect.github.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8524)

[Compare
Source](https://redirect.github.com/postcss/postcss/compare/8.5.23...8.5.24)

- Preserve the BOM after the processing (by
[@&#8203;hdimer](https://redirect.github.com/hdimer)).

###
[`v8.5.23`](https://redirect.github.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8523)

[Compare
Source](https://redirect.github.com/postcss/postcss/compare/8.5.22...8.5.23)

- Do not load source map without `opts.from` for security reasons.

###
[`v8.5.22`](https://redirect.github.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8522)

[Compare
Source](https://redirect.github.com/postcss/postcss/compare/8.5.21...8.5.22)

- Fixed custom property losing semicolon before a comment (by
[@&#8203;sarathfrancis90](https://redirect.github.com/sarathfrancis90)).

###
[`v8.5.21`](https://redirect.github.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8521)

[Compare
Source](https://redirect.github.com/postcss/postcss/compare/8.5.20...8.5.21)

- Fixed childless at-rule losing semicolon before comment (by
[@&#8203;sarathfrancis90](https://redirect.github.com/sarathfrancis90)).
- Fixed docs (by [@&#8203;isker](https://redirect.github.com/isker)).

###
[`v8.5.20`](https://redirect.github.com/postcss/postcss/blob/HEAD/CHANGELOG.md#8520)

[Compare
Source](https://redirect.github.com/postcss/postcss/compare/8.5.19...8.5.20)

- Fixed missing space if `AtRule#params` is set after (by
[@&#8203;sarathfrancis90](https://redirect.github.com/sarathfrancis90)).
- Fixed mixing AST error on warnings (by
[@&#8203;MahinAnowar](https://redirect.github.com/MahinAnowar)).

</details>

---

### Configuration

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…ock#4439)

This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
| [@tanstack/react-virtual](https://tanstack.com/virtual)
([source](https://redirect.github.com/TanStack/virtual/tree/HEAD/packages/react-virtual))
| [`3.14.8` →
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---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/1) for more information.

---

### Release Notes

<details>
<summary>TanStack/virtual (@&#8203;tanstack/react-virtual)</summary>

###
[`v3.14.9`](https://redirect.github.com/TanStack/virtual/blob/HEAD/packages/react-virtual/CHANGELOG.md#3149)

[Compare
Source](https://redirect.github.com/TanStack/virtual/compare/@tanstack/react-virtual@3.14.8...@tanstack/react-virtual@3.14.9)

##### Patch Changes

- Updated dependencies
\[[`a5417b4`](https://redirect.github.com/TanStack/virtual/commit/a5417b4b0d3c82876747bb9635db7239c28d3e44)]:
-
[@&#8203;tanstack/virtual-core](https://redirect.github.com/tanstack/virtual-core)@&#8203;3.17.7

</details>

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## Summary

- temporarily allow the informational `RUSTSEC-2026-0243` advisory for
the retired `nostr-relay-pool` crate
- document the exact MeshLLM → `nostr-sdk 0.44.1` transitive path and
removal condition
- keep every other advisory and the global dependency policy enforced

## Why an exception

RustSec provides no patched `nostr-relay-pool` release because the
standalone crate was absorbed into `nostr-sdk >= 0.45`. Buzz inherits it
through pinned MeshLLM v0.74. A direct test bump to `nostr-sdk 0.45.1`
removed the retired crate but produced 13 MeshLLM API compilation
errors, so the durable fix requires an upstream source migration rather
than a lockfile update.

This narrow exception restores the required Security check while that
migration is completed. It must be removed once MeshLLM adopts
`nostr-sdk >= 0.45`.

## Validation

- `bin/cargo-deny --locked check --config deny.toml advisories`
- `bin/cargo-deny --locked check`
- `git diff --check origin/main...HEAD`
- mandatory pre-push Rust and desktop/Tauri checks

## Scope

One four-line `deny.toml` addition. No Rust source, lockfile, runtime,
or release behavior changes.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
This PR contains the following updates:

| Package | Change |
[Age](https://docs.renovatebot.com/merge-confidence/) |
[Confidence](https://docs.renovatebot.com/merge-confidence/) |
|---|---|---|---|
|
[@types/react](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/react)
([source](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react))
| [`19.2.17` →
`19.2.18`](https://renovatebot.com/diffs/npm/@types%2freact/19.2.17/19.2.18)
|
![age](https://developer.mend.io/api/mc/badges/age/npm/@types%2freact/19.2.18?slim=true)
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|
|
[@types/react-dom](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/react-dom)
([source](https://redirect.github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/react-dom))
| [`19.2.3` →
`19.2.4`](https://renovatebot.com/diffs/npm/@types%2freact-dom/19.2.3/19.2.4)
|
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|

---

> [!WARNING]
> Some dependencies could not be looked up. Check the [Dependency
Dashboard](../issues/1) for more information.

---

### Configuration

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Co-authored-by: Wes <wesbillman@users.noreply.github.com>
## Why
Selecting or typing a member whose display name extends another member's
name, such as `@Fast Fizz Codex`, could emit p-tags for both identities
and wake the wrong agent.

## What
- Resolve overlapping member-name matches by choosing the longest valid
display name at each mention offset
- Preserve separately typed short-name mentions at different offsets
- Add regression coverage for selected team expansions and manually
typed prefix collisions

## Risk Assessment
Low to medium — this changes Desktop mention routing only. Exact
mentions and distinct offsets remain supported; same-length ambiguous
display names remain conservatively tagged because text alone cannot
disambiguate them.

Will resolve block#2909

Generated with Goose

Signed-off-by: Hardworking Honey <c5c455215c2506cb8ba776518cec804af62d3a0526e32d496a22072e395042b9@buzz.block.builderlab.xyz>
Signed-off-by: Atish Patel <atish@squareup.com>
Co-authored-by: Hardworking Honey <c5c455215c2506cb8ba776518cec804af62d3a0526e32d496a22072e395042b9@buzz.block.builderlab.xyz>
…hive + P4a aggregation/D6 (block#4000)

## What

Implements Phases 2 and 4a of the Usage v2 plan (plan events
`d0268cd0`/`0e95b035`), extending the archive backend to emit,
transport, archive, and aggregate both cache categories and billing
identity fail-closed.

### P2 — emission, transport, archive

**Tri-state accumulators** (`Unseen`/`Exact`/`Unknown`) for cache-read
and cache-write in `buzz-agent` turn and session state. Absent field =
Unknown (never zero) through the full pipeline. No `unwrap_or(0)` on the
cache path. Both cache folds are gated on usage-bearing responses (same
gate as the total-state and identity folds) — a response with no usage
at all must not poison either accumulator.

**Overflow-aware input token parsing and accumulation** — closed
end-to-end from parse through wire to ACP:
- `sum_usage()` returns `SumUsageResult` (`Exact(u64)` | `Overflow`) —
checked arithmetic, never clamps. `anthropic_input_tokens()` returns
`Option<SumUsageResult>` since it sums three fields (`input_tokens +
cache_read_input_tokens + cache_creation_input_tokens`) that can
collectively overflow. Single-field callers (`prompt_tokens`,
`completion_tokens`, etc.) convert via `.into_exact()` — their
single-field sums cannot overflow.
- `LlmResponse.input_tokens_overflowed: bool` propagates the parse-layer
signal into the run loop. When set, `input_tokens` is `None` (clamped
value discarded), the context-gate baseline
(`last_request_input_tokens`) is frozen at its prior reading, and
`turn_input_tokens` is poisoned to `TurnIOState::Poisoned` before any
emission — including mid-turn `emit_usage_update` calls. A dedicated
enum on `LlmResponse.input_tokens` would ripple into ~20 existing test
assertions on `r.input_tokens == Some(...)`; the bool flag confines the
change to the two call sites that check it.
- `TurnIOState` (`Unseen`/`Exact`/`Poisoned`) for input and output:
per-round fold uses `checked_add`; overflow poisons permanently at turn
and session level, no healing. Absence does not poison (pass-2-cleared
contract unchanged). Wire emission omits
`accumulatedInputTokens`/`accumulatedOutputTokens` when poisoned — never
null, never `u64::MAX`. ACP treats absent = publisher-poisoned:
`delta_reliable: false`, null turn fields, null cumulative for that
category; session cumulative stays unknown for all subsequent turns once
poisoned.

**Conditional wire emission** for `accumulatedCachedInputTokens` and new
`accumulatedCacheWriteTokens`: fields are omitted when the cumulative is
Unseen or Unknown. ACP `_goose/unstable/session/update` contract
documented next to the payload with tests for all absence/zero variants.

**`PricingIdentity` stamping (publisher-side)**:
- `pricing_authority()`: canonical parsed-URL endpoint comparison
against the official allowlist — HTTPS only, exact allowlisted host
(lookalike-safe), default port (omitted or explicit :443), required API
base path, rejects userinfo/query/fragment/path-prefix lookalikes.
- Model: the actually-requested `request_model` after mesh/auto
resolution (not `effective_model_str`).
- Turn discipline: identity retained only while ALL usage in the current
turn carries one identical proven identity; any mismatch,
unproven-usage-bearing response, or unpaired cumulative snapshot poisons
to absent; a later matching notification does not heal a mixed turn.

**ACP `UsageTracker` identity fold**: per-in-flight-turn tri-state
identity accumulator replacing last-update-wins. Any absent identity on
a token-advancing notification or exact mismatch poisons to absent;
poison survives later updates; reset in `begin_turn()`/`take()`; reset
also when a request fails (baseline cleared so preflight gate cannot
stay frozen sub-threshold on retries).

**M3 migration**: adds `turn_cache_write_tokens`,
`cumulative_cache_write_tokens`, `pricing_authority`, `pricing_model`,
`pricing_cache_class` to `agent_metric_index`. Additive, idempotent,
guarded per-column by marker. M2 migration also guarded per-column (turn
and cumulative cache-read columns checked and added independently;
marker commits only after both are present). Fresh-DB schema includes
all columns.

**First-turn baselines**: `seed_zero_baseline` seeds `last_input:
Some(0)`, `last_output: Some(0)`, `last_cached_input: Some(0)`,
`last_cache_write: Some(0)`, and `last_total: Some(0)` — all have the
known-zero-at-spawn argument. Absent fields from incoming snapshots
still produce unknown (tri-state unchanged). Sessions buzz-acp did not
spawn (no seed) remain fail-closed on turn one.

**`ReportedUsage` TS mirror**: `cacheReadTokens`, `cacheWriteTokens`,
`freshInputTokens` added to `tauriArchive.ts` as `UsageField` members,
field-for-field with the Rust struct.

### P4a — aggregation layer

**Extended S-1 ladder** to cache-read and cache-write via the same
`ladder_token` path as the existing token fields.

**`freshInputTokens` derivation**: checked arithmetic, fail-closed —
absent cache fields produce Unknown (not zero), overflow and
`cacheRead+cacheWrite > input` both produce `incomplete: true`.
Aggregated as a `UsageField`.

**D6 comparator**: `sort_value()` = provider total when known, else
`input+output` when both known, else `None` (unknown-last). Replaces the
prior total-only comparator for both agent-level and model-level sort.
Ships a pinned test vector that the TS render layer (P5) must match.

## Test coverage

- `buzz-agent`: 440 lib + 15 integration (golden_transcripts) — includes
13 new `cache_total_state_tests`; 14 new `turn_io_state_tests`; 3 new
`sum_usage_*` tests (exact single-field, exact two-field, overflow
signals correctly); 3 new `parse_anthropic_*` tests (overflow flag set +
value cleared, normal sum no flag, absent usage no flag); end-to-end
golden transcript drives real subprocess with Anthropic-shaped
`input_tokens: u64::MAX, cache_read: 1` response and asserts
`accumulatedInputTokens` absent from the emitted `usage_update` — no
logic duplication; 3 wire pin tests; 4 `fold_pricing_identity_*` tests;
`pricing_authority()` explicit-:443 acceptance
- `buzz-acp`: 700 tests (691 lib + 9 integration) — 4 new usage tests
(absent input → unreliable+null; absent output → unreliable+null;
goose-shaped both present unchanged; poison mid-session); 3 ACP behavior
tests; 7 pool lifecycle tests
- Desktop (Rust): 2259+ tests — 14 new P4a pinned tests; 2 M3 round-trip
tests; 1 serde key-shape test; 2 M2 partial-schema migration tests;
first-turn cache round-trip test

## Related PRs

- P1 NIP-AM spec: [block#4632](block#4632)
- P3 pricing table: [block#4629](block#4629)
- UI (P5): [block#4001](block#4001)

---------

Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Signed-off-by: Duncan <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
Co-authored-by: npub1mn7jgtj4w2pd0g0zeuhxsa6jy6p0rewxz4kujt98my82ahfmp72sxjexk7 <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
## Summary

- deliver legacy ACP standing context once per live session, committing
delivery state only after a successful turn
- send only new thread/DM event deltas on later turns, with fail-open
behavior for missing IDs and failed/cancelled prompts
- fence native steer delivery acknowledgements by ACP session identity
so stale acks cannot poison replacement sessions
- keep context hints truthful when a fetch contains only the triggering
event versus history delivered earlier

## Validation

The pre-push hook passed on exact pushed head
`6a768f1bc80fe63c686acf8d730f177fff8add3c`:

- `branch-skew`
- `desktop-check`
- `desktop-typecheck`
- `desktop-test`
- `rust-tests`
- `desktop-tauri-checks`

Focused regression tests were also run while iterating:

- `channel_prompt_commits_delivery_state_only_after_acp_success`
- `in_flight_stale_native_steer_ack_cannot_update_replacement_session`
- thread/DM trigger-only versus previously-delivered context hint tests

## Known limitations and follow-ups

A local Goose smoke timed out at `session/new`. This diff does not
change code that executes at or before `session/new`; its earliest
affected runtime behavior is delivery-state insertion after session
creation succeeds. The smoke failure is therefore bounded as
environmental or pre-existing, but no successful live-provider turn was
obtained. Scripted ACP wire/lifecycle tests carry the regression
coverage.

- block#5421 — distinguish post-delta, already-delivered, and fetch-truncated
context counts
- block#5422 — define a standing-context re-delivery policy if a legacy
provider compacts it away

Durable process-restart/session resume remains out of scope for this
slice of block#5342. block#5386 also remains separate pending upstream adapter
support.

---------

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Summary

- prioritize exact whole-lexeme matches within short kind-0 prefix
searches
- preserve the existing prefix result set, pagination, community/channel
scope, hydration, and authorization path
- add a Postgres regression where newer noisy `jm…` profiles saturate
the bounded page

## Why

Desktop mention autocomplete starts searching after one character. The
`jm` profile is indexed and matches both `jm:*` prefix search and
standard full-text search, but production prefix search returns a full
50-result page without it. Raw profile JSON supplies enough unrelated
`jm…` lexemes that newer equal-rank matches fill the bounded page before
the exact short display name.

Changing clients would leave deployed Desktop 0.5.8 installations
broken. This shared search-layer compatibility fix changes ordering only
for `Prefix + kinds:[0] + query length <= 2`; message search, longer
profile typeahead, and agent eligibility are untouched.

## Validation

At commit `ff88761135d5045139aeb3da14d08cbfba203169` with a clean
worktree:

- `BUZZ_TEST_DATABASE_URL=postgres://buzz:buzz_dev@localhost:5432/buzz
cargo test -p buzz-search --tests -- --include-ignored` — 22 passed (3
unit + 19 Postgres integration)
- `cargo clippy -p buzz-search --tests -- -D warnings`
- `cargo fmt --all -- --check`
- mutation check: disabling exact-lexeme priority makes
`short_kind0_prefix_prioritizes_exact_lexeme_on_a_noisy_page` fail
- mandatory pre-push hooks: branch-skew, Rust tests, and Desktop/Tauri
checks passed

## Risk

Low. The extra ordering predicate applies only to one- or two-character
prefix searches restricted exactly to kind 0. It does not add
candidates, bypass filters, or alter access control. Exact matches move
ahead of broader prefix matches; all remaining ordering stays relevance,
recency, then event ID.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Summary

Pin every GitHub CLI PR operation in the Desktop release helper to
`block/buzz`.

Without an explicit repository, `gh` refuses to create the release PR in
checkouts that have multiple GitHub remotes and no configured default.
This happens after the candidate has already been generated, validated,
committed, and pushed.

Add release-contract assertions covering the list, edit, and create
paths so repository qualification cannot regress.

## Validation

- `bash -n scripts/prepare-desktop-release.sh
scripts/test-release-ref-contract.sh`
- `scripts/test-release-ref-contract.sh`
- pre-push `branch-skew`

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Summary

Separate OSS desktop artifact publication from fleet-wide auto-update
promotion.

- retain the exact generated updater manifest as `updater-manifest.json`
on each immutable `desktop-vX.Y.Z` release
- stop the tag-triggered build from mutating
`buzz-desktop-latest/latest.json`
- add a `main`-only manual promotion workflow with one global
concurrency group
- validate stable semver, release/tag commit identity, draft/prerelease
state, exact platform set, signatures, version-bound asset URLs, asset
existence, monotonicity, idempotent retries, and a final stale-state
check before writing
- document the operator flow and pin the split with focused contract
tests

## Safety behavior

Publishing a versioned GitHub release no longer exposes it through the
in-app updater. Operators can install and test those exact
signed/notarized artifacts, then manually run **Promote OSS Desktop
Auto-Update** with the stable version.

Promotion rejects downgrades. A same-version retry succeeds only when
the rolling and candidate manifests are byte-identical. The workflow
re-reads the current rolling version immediately before its only write
and records the actor, source tag commit, previous version, manifest
digest, and run URL.

## Verification

Verified at commit `39caf1603be06bb476905225ec55f7bbbe86b237`:

```text
scripts/test-oss-desktop-promotion.sh
OSS desktop promotion contract passed

scripts/test-release-ref-contract.sh
release ref contract passed

git diff --check origin/main...HEAD
(clean)
```

The repository pre-push hook also passed `branch-skew` for the exact
pushed head; package suites were correctly skipped because this change
only touches release workflows, scripts, and documentation.

Originating conversation: Buzz channel `separate-publish-step-release`,
thread
`8857ce8bbe928e891165eddcf06c666cf6eae16181c3f02a6d8c396d8a536026`.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
…5453)

Part of block#5418 (Phase 1, lane B).

## What

Adds a periodic, whitelist-driven TTL sweep for disposable localStorage
caches so a desktop session left open for days converges to the same
storage state as one restarted nightly.

- New `desktop/src/shared/lib/localStorageSweep.ts`: declarative
`LOCAL_STORAGE_SWEEP_RULES` table — six repaintable pure-cache prefixes
(matching `PURE_CACHE_KEY_PREFIXES` in `localStorageQuota.ts`), all
14-day TTL, keyed on each payload's `updatedAt` (user-label buckets use
their newest nested per-profile timestamp).
- Entries with no trustworthy timestamp are retained, never guessed
stale. `buzz-self-profile.v1:` is deliberately excluded — it is the
load-bearing offline identity fallback (guard comment in the table).
- Scheduler: first sweep deferred off the boot critical path via
`requestIdleCallback` (1.5s timeout) with a 250ms timer fallback, then
hourly and on return-to-visible, debounced to 5 minutes. Throw-safe
throughout (failures `console.warn`, never crash — per `safeStorage.ts`
conventions / block#5078).
- Wired in `desktop/src/main.tsx` beside
`recoverLocalStorageQuotaOnStartup()`.

## Validation

- Focused node test 7/7 at HEAD; pre-push gate green (desktop-check,
desktop-typecheck, full desktop-test 4542/4542).
- Manual Playwright (not covered by push hooks):
`relay-connectivity.spec.ts -g "04"` (offline cached identity) passes
1/1 at HEAD — this spec caught and now guards the v1 regression.
- Independent adversarial review: FULL REVIEW (REQUEST CHANGES) then
VERIFIED — PASS at exactly this commit, including whitelist containment
against the 58-site inventory, scheduler tracing, and smoke E2E.

Authored by Summer (agent), reviewed by Beth (agent), integrated by Rick
(agent). Discussion: Buzz channel time-based-localstorage-eviction,
thread 0d85a73ca43e54748128f89c3512a4726131bf5473253395d46bf8f3a7b58bd4.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Summer <1fdd3cc104e2911eb3b2da6f97d1b25f4a7f3550ded4492b24ff1d95acd66766@buzz.block.builderlab.xyz>
Part of block#5418 (Phase 1, lane A). Companion to block#5453 (TTL sweep).

## What

Nine localStorage stores grew without bound (full 58-call-site audit in
the tracking issue). Each now has an explicit leak-guard cap, applied
wherever the store is parsed, merged, or written, preserving each file's
merge/versioning semantics:

- **Community icons:** 32 entries, 96 KiB/value (aligned with the
relay's `MAX_WORKSPACE_ICON_DATA_URL_LEN`); touched relay becomes
newest.
- **Channel mutes/stars:** newest-500 cap each, bounded by recency
(`updatedAt`, channel-ID lexical tie-breaker), with the just-written
channel unconditionally preserved for that write (cap−1 recency slots +
the mutated key). A bounded LWW store cannot guarantee permanent
deletion history; the guarantee here is that **the just-written mutation
survives its own bounding** and, as the newest entry, defeats an older
remote `true` through the pre-publish `mergeStores`. Known residual
(accepted): `updatedAt` is whole-second, so two distinct mutations
inside the same second at exact capacity can still evict the earlier one
before the debounced publish — same root cause as the merge-path
same-second tie, tracked for the follow-up precision fix rather than
more preservation machinery. Enforced at parse, post-merge, local state,
and persistence.
- **Forced unread:** newest 500 insertion-ordered, touched channels
refreshed.
- **Persistent agent audiences:** 200-scope LRU. An unchanged-audience
touch (including re-initializing an existing scope) refreshes LRU order
and persists without advancing the scope's revision or emitting; an
already-most-recent touch is a pure no-op (no clone, no write), so
render-path re-initialization causes zero storage traffic.
- **Self profiles:** newest 8 per relay / 32 globally by `updatedAt`,
just-written key always preserved; trim count-gates before parsing
payloads so under-cap writes skip the scan entirely.
- **Sections:** newest 100 + newest 1,000 assignments, orphans removed;
`assignChannel` delete/reinserts the touched channel so a reassignment
becomes newest in insertion order and cannot be evicted by the next
assignment. **Sort prefs:** 104 groups (100 sections + 4 fixed).
- **Feature overrides:** `getOverrides()` filters to current-manifest
boolean ids on read only — no write-back from the render-path getter.

## Review-driven revisions

- `237f25e4` — three narrow changes from the first adversarial review
(no render-path storage write, icon cap aligned to relay constant,
count-gated profile trim).
- `d864ffb0` — fixes for the two GitHub review findings on `237f25e4`:
(P1) mute/star bounding switched from false-tombstone-first eviction to
pure recency, with regressions proving an at-capacity unmute/unstar
survives bounding and the pre-publish LWW merge; (P2) unchanged
agent-audience touches now refresh LRU order (no revision advance, no
emit), with a subscriber-mounted regression.
- `3ddbb26d` — MRU guard from the second adversarial VERIFY: the P2
touch path skips clone/persist entirely when the scope is already
most-recently-inserted, eliminating repeat synchronous localStorage
writes from render-path effects. Test proves a non-MRU identical touch
writes exactly once (scope persisted last) and an already-MRU touch
writes zero times.
- `e220ccd9` — fixes for the second GitHub review round (Carl, on Wes's
behalf): (1) mute/star bounders preserve the just-mutated key so a
same-second mutation at capacity survives its own bounding; merge/sync
call sites unchanged; (2) `assignChannel` delete/reinserts the touched
key so an at-capacity reassignment isn't evicted by the next new
assignment. Regressions at storage and hook level for both;
negative-control run of the 7 new tests against the old sources: 7 fail.

## Validation

- Full desktop suite 4555/4555 at both `d864ffb0` and `3ddbb26d`, plus
desktop-check/typecheck via the push gate; focused storage/audience
tests 62/62 at `d864ffb0`, 14/14 audience suite at `3ddbb26d`.
- Independent adversarial review: APPROVE at `88a55aee` (including 100
smoke E2E specs covering every seeded store, run manually since push
hooks exclude Playwright), then a second VERIFY pass: **VERIFIED at
`d864ffb0`** — P1/P2 confirmed closed via negative-control runs of the
new suites against the old sources, plus smoke Playwright on the
mute/star/audience specs (17 passed). That VERIFY requested one
pre-merge change (no localStorage writes from the render path), landed
as the narrow MRU guard in `3ddbb26d` within the reviewer's stated
no-re-review boundary. A third VERIFY pass: **VERIFIED at `e220ccd9`** —
both findings from the second GitHub review confirmed closed by
sensitivity testing (new tests fail on old sources), hostile same-call
section-trim case constructed and passed, full suite 4562/4562 re-run
independently.

Authored by Meeseeks (agent), reviewed by Beth (agent), integrated by
Rick (agent). Discussion: Buzz channel time-based-localstorage-eviction,
thread 0d85a73ca43e54748128f89c3512a4726131bf5473253395d46bf8f3a7b58bd4.

---------

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Meeseeks <2e96988f190ed1bd3c568760103aa4cadb2bc6195b832e252c984392c89039bd@buzz.block.builderlab.xyz>
## Summary

- add a SHA-pinned sccache action to reuse unchanged Rust compilation
units when the exact relay artifact cache misses
- keep pull requests read-only while preserving cache writes for trusted
`main` and `release` pushes
- stop saving isolated exact relay-artifact caches from PRs, reducing
cache churn
- preserve the exact artifact cache as the zero-build fast path

## Why this is an experiment

The relay artifact job currently misses its exact cache whenever any
file under `crates/**` changes, forcing a full workspace rebuild. PR
block#4975 spent roughly 21 minutes in that job for a one-file `buzz-sdk`
change. sccache targets the relevant reuse boundary—individual compiler
inputs—but the repository cache pool is already under heavy eviction
pressure, so this PR does **not** claim a proven timing win yet.

## Safety

- `Mozilla-Actions/sccache-action` is pinned to commit
`fc920bf0ec8de6ee65d409111f7ec508035751ba`
- `RUSTC_WRAPPER` is scoped only to `Build relay artifacts`
- PRs use `READ_ONLY`; trusted `push` runs (`main` and `release`) use
`READ_WRITE`
- the existing exact finished-artifact cache remains the first/fast path
- finished artifacts are saved only by trusted pushes, preserving the
former trust boundary
- workflow permissions remain `contents: read`; no `pull_request_target`
path is introduced
- the pinned action automatically emits sccache
hit/miss/error/write/duration statistics in its post-job hook

## Validation

- `actionlint .github/workflows/ci.yml`
- `git diff --check`
- desktop release-cache contract test
- release-ref contract test
- independent code-shape reviews from Princess Donut and Mongo: 9/10, no
remaining findings

## Measurement plan

1. purge obsolete PR-scoped `relay-artifacts-*` cache entries before
measurement
2. merge/push a trusted writer to populate sccache
3. run a representative one-crate PR
4. compare relay job duration and automatic sccache statistics against
the 21–22 minute baseline
5. retain this only if the warm run demonstrates material improvement

---------

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
…5493)

## Summary

- restore private-channel invitations for every active member
- keep owner/admin-only enforcement for elevated role grants, active
role changes, and removals
- preserve block#4612's unrelated Desktop/mobile failure handling and
hardening
- add relay coverage for the ordinary actor/target role matrix
(`member`, `guest`, `bot`)

## Validation

- pre-push hook passed on `7de700e17642ad7e10155f9537033168d9249268`:
branch skew, Desktop checks/typecheck/tests/Tauri checks, mobile tests,
and Rust tests
- `cargo test -p buzz-test-client --test e2e_relay --no-run`
- `cargo fmt --all -- --check`
- `git diff --check`
- Donut and Mongo independently reviewed the cross-layer authorization
behavior; Donut's role-matrix coverage finding is addressed in this
revision

---------

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
…ck#5490)

Fixes block#3677.

## Problem

The renderer never quiesces: recurring timers, query polling, and
re-render tickers run at full rate whether the window is visible,
hidden, or minimized. Measured on a live installed app: **27.5% mean
renderer CPU visible vs 28.7% hidden** (60×1s `ps` samples of the
WebContent process; `sample(1)` dominated by
`WebCore::timerFired`/ThreadTimers, microtask checkpoints, JSON parsing,
style matching). Matches all three reproductions in block#3677 (macOS
prerelease, Linux/WebKitGTK A/B/A minimize test, stable macOS).

Per-timer instrumentation (dev build, wrapped
`setInterval`/`setTimeout`/rAF) attributed the recurring work: `useNow`
60 fires/min, 40 active TanStack refetch intervals, agent-turn pruning
12/min, auto-restart ticks, huddle/reminder polls — none
visibility-gated.

## Fix (two-tier gating, standard mechanisms only)

Two separate signals in `desktop/src/shared/lib/useDocumentVisible.ts`,
because they mean different things and (see residuals) are delivered
differently on macOS:

- **`useDocumentVisible`** — true Page Visibility only
(`document.visibilityState`). Gates local UI work that must keep running
on a visible-but-unfocused window: `useNow` relative clocks, agent-turn
pruning, huddle bar state/model-status polling, auto-restart tick.
Hidden ⇒ paused; `useNow` snaps to fresh `Date.now()` on return.
- **`useAppFocused`** — visible AND `document.hasFocus()`. Gates network
refetch polling only (`useFocusedRefetchInterval`, ~15 query families:
forum/home/agents/channels/templates/emoji/user-status/projects/workflows/persona-catalog/pulse/presence-list).
TanStack's `focusManager` is wired to this signal (idempotent, single
install) with `refetchOnWindowFocus: true`, so stale queries refresh
promptly on return. Deliberate side effect, documented in code: query
retries pause on blur; mutations and the presence heartbeat (`retry: 0`)
are unaffected.
- **Never gated:** reminder due-notification poll (fires while
hidden/unfocused — extracted to `reminderNotificationPoll.ts` with
regression test), huddle pipeline hot-start (`check_pipeline_hotstart`
survives backgrounding for the duration of a huddle), relay stall
watchdog, presence heartbeat. Live WebSocket delivery untouched
throughout.
- Huddle model-status indicator now clears only on huddle phase end, not
on visibility/focus changes.

## Validation

- Instrumented dev build, populated channel, fires/min:
**visible+focused** unchanged (`useNow 60 / prune 12 / watchdog 6 /
query 4 / auto-restart 4 / low-rate huddle/reminder/presence`);
**visible+blurred**: query polls 0, UI clocks continue (`useNow 60 /
prune 12`), reminders 2, presence live; **truly hidden**: only watchdog
6, reminders 2, presence ~2 — everything else 0. Return restored
visible+focused, selection preserved, queries refreshed.
- Hide-vs-blur decomposition (instrumented probe instance,
AppleScript-driven): on macOS WKWebView, Cmd-H / minimize / full
occlusion did **not** reliably produce `visibilityState === "hidden"` —
they reliably produced focus loss. The CPU-dominant quiescence path on
macOS is therefore the focus gate; the visibility gate is exercised
fully on platforms that report hidden (e.g. WebKitGTK minimize per the
Linux repro).
- Gate-regression tests: signal separation, `useNow` hidden-pause +
fresh-snap on return, focus-gated interval pause/resume-with-refresh,
reminder delivery while hidden+unfocused (5 new, plus primitive wiring
tests).
- Push gate: desktop check, typecheck, full desktop suite **4549/4549**
at `1237548d1`.

## Known residuals

- **macOS hidden-signal limitation:** because WKWebView rarely reports
`hidden` on app-hide/minimize, hidden-only consumers (`useNow`, prune,
huddle UI polls) may keep ticking on macOS when the app is hidden. These
are cheap local timers; the expensive network polling still quiesces via
focus loss, which is what the measured 28% CPU was attributed to. If the
residual local-timer cost proves measurable, the follow-up is bridging
Tauri window hidden/minimized events into the visibility signal.
- End-to-end CPU confirmation on a packaged build is the post-merge
follow-up (against the 28% idle baseline).
- Visible-state costs (skeleton animation pileups on stuck loading
views, per-poll JSON payload churn) are intentionally out of scope —
separate follow-up issue.

---------

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Meeseeks <2e96988f190ed1bd3c568760103aa4cadb2bc6195b832e252c984392c89039bd@buzz.block.builderlab.xyz>
## Summary
- standardize onboarding navigation and horizontal step transitions
- refine the avatar editor with live preview, segmented modes, search,
skin tones, and reduced-motion-safe feedback
- simplify harness/default-model actions and supporting copy

## Testing
- desktop typecheck and static guards
- desktop E2E build
- 9 focused onboarding smoke tests
- 4 focused onboarding/profile integration walkthroughs
- 4,535 desktop unit tests

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Signed-off-by: Kenny Lopez <klopez4212@gmail.com>
Co-authored-by: Carl <3c4caeafb646d23867f1c4832e68211d77e2561946171625f75c3ce1a3f2670f@buzz.block.builderlab.xyz>
## Why
`buzz channels update` could already change name, description, and TTL,
but the SDK/relay/DB path for channel visibility was unreachable from
the CLI.

## What
- Add `--visibility open|private` to `buzz channels update`
- Pass the visibility value through to `build_update_channel`
- Add guard tests proving empty updates still fail and visibility-only
updates are accepted

## Risk Assessment
Low — this is limited to the buzz-cli update command and uses existing
SDK validation plus existing relay/DB handling.

## References
- Spike notes: `RESEARCH/SPIKE_CHANNEL_VISIBILITY_TOGGLE.md`
- Local validation: `cargo test -p buzz-cli`

Generated with Codex

Signed-off-by: Cameron Hotchkies <chotchkies@block.xyz>
Co-authored-by: Lazy Joe <dbd8c9941ba6dafebcef0abc015b65e75d52e7452f2ce483c9c3fd4d180f2504@buzz.block.builderlab.xyz>
## Buzz Desktop release v0.5.9

- **Frozen main:** `f8f2ef0440e7a074223ec04dc3b32d817b8b9d9b`
- **Reviewed candidate:** `ee33722615ca1e7b8efb03e2ed641d99448c8899`
- **Previous desktop release:** `desktop-v0.5.8`
- **Proposed immutable tag:** `desktop-v0.5.9`

This PR may be **squash merged** after the Desktop Release Candidate
check and all protected-branch checks pass. Merging authorizes
publication of the exact reviewed candidate; later or unrelated changes
on `main` cannot alter it.

The checked-in changelog accounts for every non-merge commit in the
release range. The Desktop tag points to the reviewed candidate commit,
not the later squash commit. Publication remains bound to that immutable
candidate tag.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Release Automation <release-automation@users.noreply.github.com>
**Category:** fix
**User Impact:** Buzz pull request, issue, and repository links now show
compact, useful metadata cards in received messages, including messages
sent by agents and the CLI.

**Problem:** Sender-authored snapshots protect recipients from external
preview fetches, but that change also removed recipient-side cards for
trusted Buzz entity links when the sender did not attach snapshots.

**Solution:** Resolve recognized Buzz entities only against the active
relay and show signed repository identity, title, and compact builder
context with the current inline Buzz mark in the favicon slot, but
without avatars, thumbnails, or external image fetches. Entity metadata
wins over conflicting sender snapshots, while unsupported or unavailable
metadata retains a safe text fallback.

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

**desktop/playwright.config.ts**
Adds the entity-link regression spec to the smoke test project.

**desktop/src/features/messages/ui/useComposerLinkPreviews.tsx**
Treats recognized Buzz entity cards as complete without generating
snapshot tags and retains fallback cards when relay metadata is absent.

**desktop/src/shared/lib/useResolvedLinkPreviews.test.mjs**
Covers kind-scoped entity detection, trusted relay metadata, root-scoped
lifecycle queries, exact single-repository root binding, image-less
pending state, and fallback behavior.

**desktop/src/shared/lib/useResolvedLinkPreviews.ts**
Resolves signed repository, pull request, and issue metadata from the
active relay. Entity roots fail closed unless they carry exactly one
matching repository tag; lifecycle queries are root-scoped before
limits; successful metadata remains stable until relay/community reset,
and PR commit context uses the immutable root event rather than an
unindexed update query.

**desktop/src/shared/ui/compact-link-preview-attachment.tsx**
Uses Buzz repository identity as the compact card provider and avoids
reserving thumbnail space for image-less entity cards.

**desktop/src/shared/ui/markdown.tsx**
Routes message cards through the combined entity/snapshot preview hook.

**desktop/src/shared/ui/markdown/useMessageLinkPreviews.test.mjs**
Proves relay-authenticated entity metadata beats a forged sender
snapshot while preserving mixed-link content order.

**desktop/src/shared/ui/markdown/useMessageLinkPreviews.ts**
Combines recipient-resolved Buzz entities with sender-authored external
snapshots using explicit trust precedence and first-seen ordering.

**desktop/tests/e2e/entity-link-recipient-cards.spec.ts**
Exercises repository identity, PR workflow context, repository metadata,
image-less rendering, and composer send behavior for agent/CLI-style
entity links.

</details>

## Reproduction steps

1. Open a channel containing a message sent without `link-preview` tags
whose content includes valid `buzz://pr`, `buzz://issue`, or
`buzz://repo` links.
2. Confirm each card shows its repository identity and signed title;
PRs/issues also show compact lifecycle context, and repositories show
description/status/default branch.
3. Confirm the cards use the Buzz mark in the favicon slot with no
avatar, thumbnail, or reserved image area.
4. Compose and send a message containing a Buzz entity link; confirm
sending is not blocked waiting for a snapshot.
5. Send a message containing both a Buzz entity link and a
snapshot-backed HTTPS link; confirm cards follow content order and the
HTTPS link remains sender-snapshot-only.

## Screenshots

### Recipient view — Buzz-branded metadata cards

Repository identity, title, and compact builder context render with the
current inline Buzz mark in the favicon slot and no avatar, thumbnail,
or reserved image space.

![Recipient view showing Buzz-branded PR and repository
cards](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5494/01-recipient-entity-cards-current-buzz-mark.png)

## Validation

At commit `7bc70b0a9f70392bd062ed25b1d2362cc4021a40` with a clean
working tree:

- Pre-push hooks passed: branch skew, desktop check, desktop typecheck,
and full desktop unit suite
- Full desktop unit suite: 4,560 passed
- Purpose-built Playwright regression after a fresh E2E build: 2 passed
- Screenshot regenerated from the same commit and visually inspected

Originating conversation: Buzz channel
`c2859932-b679-4091-9c7e-f5a65deddd64`, thread
`93c3e7be59a8d1ec10b4992efd783a2a79f253a10f10d39746c6ad41b0d5bb42`.

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
…olve (block#5245)

## Overview

**Category:** fix  
**User impact:** Link previews no longer disappear when a message is
sent while preview metadata or media is still settling. Fast Enter,
rapid Enter, and confirmed-draft auto-send now preserve the preview
without duplicate sends or stale tags.

**Problem:** The composer could look ready before its sender-authored
snapshot tag existed. Send paths could then race preview
resolution/upload, while debounced preview state could attach a tag for
a URL that had already been removed. The same timing also caused
confirmed-draft auto-send to be consumed without sending.

**Solution:**
- Debounce preview resolution to avoid card flicker while typing, then
disable every submit path while a supported external preview settles. A
2-second escape cap still permits a bare-link send if resolution stalls.
- Keep submit synchronous: acquire a composer-local lock before
asynchronous send work, read ready tags from the live URL set, and
reject Enter/form submits while a snapshot is pending.
- Retry confirmed-draft auto-submit until preview settling clears, then
submit exactly once.
- Upload thumbnail and favicon independently. A failed upload shows a
toast and degrades to the surviving media (or text-only) rather than
leaving the card spinning.
- Exclude message-edit mode from preview resolution, upload, and Save
gating. Edit-time preview snapshots remain follow-up block#5273.
- Canonicalize fragment-bearing URLs for preview lookup/snapshot
identity while preserving the original fragment links in message text.

## Link preview state walkthrough

Captured using PR block#5245's actual public Open Graph metadata and artwork.
The deterministic E2E bridge controls only upload timing so the
transient disabled state can be captured reliably.

| State | Expected behavior | Screenshot |
| --- | --- | --- |
| **1. Snapshot upload pending** | The real PR preview is visible, but
Submit remains disabled until its sendable snapshot tag is ready. Click
and Enter cannot send a bare link during the settling window. | ![PR
5245 pasted with its real preview visible and Submit
disabled](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5245/01-real-pasted-submit-disabled.png)
|
| **2. Snapshot ready** | Once snapshot upload settles and the tag is
ready, the same preview remains and Submit becomes active. | ![PR 5245
preview ready in the composer with Submit
enabled](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5245/02-real-resolved-submit-enabled.png)
|
| **3. Message sent** | The sent event carries the snapshot tag and
renders the PR title, description, and artwork inline instead of
degrading to a bare URL. | ![PR 5245 real link preview rendered inline
in the message
list](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5245/03-real-sent-preview-inline.png)
|

## Regression coverage

- Enter during metadata resolution or snapshot upload cannot send early.
- Paste-and-immediate-Enter sends after settling; rapid Enter submits
exactly once.
- Confirmed-draft auto-send waits for settling and fires exactly once.
- Removed/replaced URLs cannot leak stale snapshot tags or media refs.
- Thumbnail upload failure toasts and sends with the surviving favicon.
- Edit mode does not resolve/upload previews or gate Save.
- Fragment variants share a canonical preview while original fragment
links remain clickable.
- Existing ready-preview, suppression, bare-link fallback, and
multi-preview behavior remains covered.

## Reproduction steps

1. Open a channel and paste a supported external URL into the composer.
2. Press Enter immediately, before preview metadata/media finishes
settling.
3. Before this fix, the event could be sent without its preview snapshot
(or confirmed-draft auto-send could be lost). With this fix, submit
waits behind the disabled state and fires once with the matching
snapshot tag.
4. Remove or replace the URL and press Enter inside the debounce window.
The sent event contains tags only for URLs still present in the
submitted content.

## Validation

All required PR checks are green, including Desktop Core, Desktop Smoke
E2E shards, Desktop E2E Integration shards, macOS build, security
checks, and DCO.

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
tlongwell-block and others added 28 commits August 14, 2026 10:16
…lock#5861)

## Summary

Every `useNow(1000)` consumer owned its own `setInterval`. With dozens
of "agent working" surfaces mounted (sidebar channel badges, tray menu,
agent session panels, managed-agent rows), each ticked on its own
unaligned 1 s timer — a render/composite pass per consumer per second.
On a machine running ~23 agent sessions this pinned a sustained **~25%
of a core** in `com.apple.WebKit.WebContent` while the app sat idle.

This PR makes same-interval `useNow` consumers share one timer: all of
them tick in a single `setInterval` callback, so React batches the state
updates into one render pass. The last unsubscriber tears the timer
down; the visibility gate (pause while hidden, snap fresh on return) is
unchanged.

Attribution receipts (live dev build, 23 acp sessions): the shimmer was
the original suspect from `sample` stacks, but probing `animation: none`
left CPU flat (~25%), while clamping `useNow` intervals dropped it
immediately. Repeated A/B with this exact change: **~25% → ~3–9%**
webview CPU under the same agent load (ambient variance from live agent
activity; the delta reproduced across three alternations).

### Related issue

None found — follow-up to the presence-firehose investigation (block#5830
fixed the subscription side; this is the remaining local render cost).

### Testing

- `pnpm test` — 4792/4792 pass, including a new test asserting N
same-interval consumers create exactly one timer and the last unmount
releases it
- `pnpm typecheck`, `biome check` — clean
- Live-local per TESTING.md: hot-patched into a running dev desktop with
23 active acp sessions; webview CPU dropped from ~25% sustained to ~3–9%
(A/B/A alternation, `ps` sampling over 30 s windows)

Signed-off-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
Co-authored-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
## Summary

- move Settings section labels outside their framed containers and
centralize the spacing
- apply the shared hierarchy across Appearance, Notifications, Voice,
Agents, Shortcuts, Members, and Profile
- give Identity and Sign out complete section treatments while removing
redundant in-cell labels

## Testing

- desktop pre-push checks, including 4,791 tests
- focused Settings layout and sign-out Playwright coverage

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Signed-off-by: Princess Donut <b238ea756dee4d98afa5883fc7f1de61eeabe65bf700e3a5a5a80db5e42e2c2b@buzz.block.builderlab.xyz>
Co-authored-by: Princess Donut <b238ea756dee4d98afa5883fc7f1de61eeabe65bf700e3a5a5a80db5e42e2c2b@buzz.block.builderlab.xyz>
## Summary

- remove synthetic preview runtime and configuration data so profiles
show only real agent content
- simplify model settings to the effective values and restore bare
section icons
- make owned-agent profiles resolve to the same current persona instance
from every entry point

## Why

Agent profiles opened from DMs or channels could fall back to a partial
declared-owner view instead of the full managed-agent profile shown on
the Agents page. Test preview content and configuration provenance also
remained visible after the redesign.

## User impact

Owned agent profiles now expose the same actions, runtime, channels,
memories, and configuration regardless of where they are opened.
Profiles no longer synthesize preview data, and model settings use the
same simple title/value hierarchy as the rest of the panel.

## Validation

- `pnpm --dir desktop check`
- `pnpm --dir desktop build:e2e`
- focused unit tests: 10 passed
- profile entry-point integration tests: 2 passed
- configuration screenshot suite: 7 passed, with six visually distinct
captures

Snapshots are attached in a PR comment.

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Signed-off-by: Watcher <bb7abfd757d0af7b66569d02ab9c0316b616f9d0c151ecf5b964344c462e7f8f@buzz.block.builderlab.xyz>
Co-authored-by: Carl <3c4caeafb646d23867f1c4832e68211d77e2561946171625f75c3ce1a3f2670f@buzz.block.builderlab.xyz>
Co-authored-by: Watcher <bb7abfd757d0af7b66569d02ab9c0316b616f9d0c151ecf5b964344c462e7f8f@buzz.block.builderlab.xyz>
block#5808)

Refs block#5718.

## What happens

`appendAgentEvents` evicts the per-agent live observer journal back to
*exactly* `MAX_OBSERVER_EVENTS`:

```ts
const trimmed = sorted.length > MAX_OBSERVER_EVENTS;
const final = trimmed ? sorted.slice(sorted.length - MAX_OBSERVER_EVENTS) : sorted;
```

Once an agent's journal reaches 3000, `current.length` is 3000 forever,
every later append makes `sorted.length >= 3001`, and `trimmed` is
`true` on every call. That permanently disables the incremental-fold
gate:

```ts
if (allAtEnd && !trimmed) { /* incremental fold */ }
else { transcriptByAgent.set(key, buildTranscriptState(final)); }
```

So every steady-state append then replays the whole retained window
through `buildTranscriptState`, which is itself O(streamed-text) because
streaming chunks fold as uncapped string concat. Nothing shrinks
`eventsByAgent` except a store reset, so the state is permanent for the
life of the renderer process, per agent. At ~90 frames/min an agent
crosses the cap in ~33 minutes; from then on live CPU escalates (issue
receipts: 188x on a headless ingest, renderer CPU climbing to 119% of a
core after five minutes idle).

This is not an off-by-one — a cap of 3000 does want `>`. The defect is
that trimming *to* the cap re-arms eviction on the very next append, and
eviction is what forces the replay.

## Fix

Evict to a low-water mark below the cap:

```ts
const OBSERVER_EVENTS_LOW_WATER = Math.floor(MAX_OBSERVER_EVENTS * 0.9);
```

The journal still never exceeds `MAX_OBSERVER_EVENTS`; it now has to be
refilled by ~300 ordinary appends before the next eviction, so one
replay is amortized across the appends that refill it. Retention
semantics (newest-N at trim time) and the derived transcript are
unchanged. The mark is a **fraction of the cap** rather than a fixed
count so the math stays correct if the cap is ever made per-agent — a
fixed headroom could exceed a smaller cap and drive the slice length
negative.

### Eviction floor

Low-water eviction leaves headroom below the cap, and the dedup set is
built only from the *retained* array — so once eviction discards the
oldest frames, the journal no longer remembers them. A relay reconnect
replaying a pre-eviction frame (normal relay behavior, and the reason
the dedup set exists) would be re-admitted into the headroom, and a
later refill to the cap would then trim away up to 300 legitimate
retained events with **no new activity** — a bounded display-window loss
plus rebuild churn that partially defeats the amortization.

To close that, each agent carries an **eviction floor**: the ordering
key of the newest event eviction has ever discarded
(`evictionFloorByAgent`, recorded at trim time as the entry just below
the retained window). `appendAgentEvents` rejects any arrival at or
before the floor (`isObserverEventAfter`, so an equal key is rejected —
the floor event itself was evicted); a stale-only batch returns `false`
with no rebuild and no notify. Out-of-order frames *newer* than the
floor are still admitted via the rebuild fallback, so the fold-gate
semantics are unchanged. The floor is cleared in
`resetAgentObserverStore` alongside the other per-agent maps.

## Evidence

`observerTranscriptRetention.test.mjs` asserts the retention window's
**shape** — the observable signal for which ingest path runs, since
transcript *content* is identical on both paths by design — plus
boundary cases and the invariant that the derived transcript still
equals a full replay of the retained window.

Against the pre-fix trim-to-cap shape, three tests fail on the mechanism
itself (`test_append_crossing_cap_trims_to_exactly_low_water`,
`test_headroom_refills_before_next_eviction`,
`test_single_batch_larger_than_cap_trims_to_low_water` — each expects
headroom the old shape never leaves), and the cost shows up directly in
runtime:

| | `observerTranscriptRetention.test.mjs` (single-event appends past
the cap) |
|---|---|
| trim-to-cap (pre-fix) | **429,105 ms** |
| this branch | **16,221 ms** |

~26x on this workload, consistent with the 188x the issue measured on a
heavier one (their events accumulate streaming text; these do not, so
this understates it).

Three further tests pin the **eviction floor** against reconnect replay:
a replay of already-evicted frames leaves the retained window
byte-identical and notifies no listener; a pre-floor frame arriving
after a refill to the cap drops no retained events; and an out-of-order
frame *newer* than the floor is still admitted. Deleting the floor check
turns exactly the first two red while the out-of-order case stays green
— confirming the tests pin the floor's rejection without
over-constraining legitimate out-of-order delivery.

## Merge-order note

This PR collides with block#5596 (bounded renderer accumulators) on
`observerRelayStore.ts` by design — block#5596 refactors this exact eviction
into `mergeObserverEventBatch` in a new `observerEventOrdering.ts` and
adds a second, unpinned-agent tier (`truncateUnpinnedAgentWindow`,
`UNPINNED_AGENT_EVENT_TAIL`). This PR merges first; block#5596 rebases over
it, porting the low-water cap-math **and the per-agent eviction floor**
into `mergeObserverEventBatch`, and applying the same headroom to the
unpinned-tier truncate (which must also record a floor when it trims).
The fraction-of-cap form makes the low-water port mechanical — it feeds
either the 3000 pinned cap or the 100 unpinned tail without a
fixed-count underflow.

## Credits

Supersedes block#5767 (Chessing234's low-water-mark approach and the runtime
measurements).

Closes block#5718. Issue receipts from the reporter, GeneralJah215 (188x
headless, 119%/core after 5min idle).

---------

Signed-off-by: Will Pfleger <pfleger.will@gmail.com>
Co-authored-by: Duncan <dcfd242e557282d7a1e2cf2e6877522682f1e5c6156dc92ca7d90eaedd3b0f95@buzz.block.builderlab.xyz>
…ock#3769)

Slice 6 of block#2216. Independent of block#3642 — cut from `main`, no shared
files in conflict.

## Why

Five surfaces formatted the same thing five ways, and none of them
matched the writing standard's Today / Yesterday / weekday / date
progression.

| Surface | Before |
|---|---|
| Chat day divider | `Monday, March 31st` — ordinal suffix, which the
standard says to avoid |
| Inbox section header | `Yesterday`, but never `Today`; always printed
the year |
| Inbox list row | A third implementation |
| Inbox thread pane header | `Jul 8, 2026, 2:34 PM` — always absolute,
always with the year, never relative at any distance |
| Channel message header | `9:05 AM` — a bare clock, so a message from
last week has nothing to anchor it once its day divider scrolls away |

There were three separate date implementations doing this, which is the
symptom worth naming: **two different jobs were being solved ad hoc at
each call site.** A header that labels a *group* of items needs a
different label than an individual item's own timestamp.

## What

`shared/lib/datetime.ts` owns both ladders:

```
formatDayGroupLabel          formatItemTimestamp
(day divider, section header) (list row, message header)

Today       → Today           withTime:false   withTime:true
Yesterday   → Yesterday       2:34 PM          2:34 PM
2–6 days    → Monday          Yesterday        Yesterday at 2:34 PM
this year   → June 20         Monday           Monday at 2:34 PM
older       → June 20, 2025   Jun 20           Jun 20 at 2:34 PM
                              Jun 20, 2025     Jun 20, 2025 at 2:34 PM
```

## Two deliberate deviations from the standard

Both are documented at the definition, not just here.

**The oldest band keeps the day.** The standard collapses anything over
ten months to month-and-year (`Aug 2022`). A group label has to
*identify* its day — collapsing would give every day in a month the same
divider, so scrolling old history would show a run of identical headers
with no way to tell one day from the next. Only the year is conditional.
There's a test asserting three consecutive 2022 dates produce three
distinct labels.

**Roomy surfaces keep the time of day at every band.** `Yesterday at
9:05 AM`, not `Yesterday`. This is a chat and collaboration workspace
rather than a transactional product — where you read conversation, the
time is content, not chrome. Narrow list rows still drop it (`withTime:
false`) and rely on the existing hover tooltip, which stays the absolute
value. `withTime` is a surface decision, not a preference.

Today needs no date word in either mode: a bare clock already reads as
today, and "Today at 2:34 PM" is longer without saying more.

## Derived rather than captured

`MessageTimestamp` now takes only `createdAt` and derives both of its
labels, instead of receiving a pre-formatted `time` string. A relative
label captured when the message list was formatted would be frozen at
that wording; deriving it means each render recomputes.

This does not make it live — `MessageRow` is memoized, so a row already
on screen when the clock passes midnight keeps saying "Today" until
something re-renders it. The day divider above it has always had the
same property, and both correct themselves on the next message, scroll,
or navigation. Called out in the component doc so the next person
doesn't read "derived" as "reactive".

The memo comparator moved from `message.time` to `message.createdAt`.
Behavior-identical — `time` was a pure function of `createdAt` — but it
now names the prop the row actually reads.

The 36px continuation hover gutter stays clock-only. A relative label
doesn't fit in `w-9`.

## Middot between metadata segments

`managed by you 9:53 AM` ran two unrelated facts together as if they
were one phrase. Now `managed by you · 9:53 AM`.

- `aria-hidden` — punctuation for the eye only. The header already reads
as separate nodes to a screen reader, and `MessageAgentOwner` supplies
its own "Agent managed by" label.
- Grouped with the segment it precedes, so it can't wrap to the start of
a line on its own — as loose siblings in a `flex-wrap` row, an orphaned
divider is exactly what happens.
- No margin; spacing comes from the container gap.
- **No separator after the author name.** "Alice 9:53 AM" already reads
as a name followed by a time. Dividers go between metadata segments
only.

Middot is already the app's separator for this —
`MessageThreadSummaryRow`, the mention list, project rows, 46 files in
total.

Applied to the channel message header, channel system rows, and the
Inbox thread pane. Left-side Inbox activity rows deliberately unchanged.

## Verified

Screenshots taken through `just desktop-screenshot`:

- `#agents` — `nadia 🤖 managed by you · 10:20 AM`, and the `Today`
divider with clock-only rows
- Inbox thread pane — `alice 🤖 owner unavailable · 12:00 PM`

**Gap worth naming:** every mock channel message is same-day, so the
past-day labels (`Yesterday at 9:05 AM`, `Jun 20 at 2:34 PM`) are
covered by unit tests rather than by a rendered screenshot. Happy to add
a spec that seeds an older `created_at` if a reviewer wants to see them.

## Validation

- `pnpm check`, `pnpm typecheck` — clean
- Unit: **3800/3800**, including 17 new tests in
`shared/lib/datetime.test.mjs` and 4 in
`messageTimestampContract.test.mjs`

The datetime tests pin the things that are easy to regress:
Today/Yesterday as *calendar* boundaries rather than 24-hour windows (a
message 15 hours old across midnight is "Yesterday"; one 22 hours old on
the same day is "Today"), the weekday band bounded at both ends so a
future timestamp from clock skew never gets labelled with a past
weekday, no ordinals across all the tricky days
(1/2/3/11/12/13/21/22/23/31), the year omitted within the current year,
and compact labels staying ≤12 chars for a narrow row.

- Smoke E2E: **783 passed, 2 failed, 1 skipped**

Both failures are pre-existing and unrelated, confirmed by re-running
each against a clean tree:

1. `video-attachment.spec.ts:223` — fails deterministically on clean
`main`
2. `community-rail.spec.ts:797` (keyboard drag-and-drop reorder) — flaky
on clean `main`: 2/5 failures there vs 3/5 with this branch, i.e. noise

## Mobile

Mobile had the same divergence, so it moves with desktop rather than
drifting until the next pass.
`mobile/lib/features/channels/date_formatters.dart`:

| Before | After |
|---|---|
| `formatDayHeading` → Today / Yesterday / `Tuesday, March 31, 2026` |
Today / Yesterday / `Tuesday` / `March 31` / `March 31, 2025` |
| `formatThreadSummaryLastReplyTime` → `on May 19th` | `on May 19` |

Same two departures from the standard as desktop, documented at the
definition and cross-referenced to `datetime.ts` so the next person
editing one finds the other. Day comparison also moved to a rounded
start-of-day difference, so a DST transition counts as one calendar day
rather than zero — Dart's `Duration.inDays` truncates.

**Message timestamps stay clock-only on mobile.** Desktop message
headers now read `Yesterday at 9:05 AM`; mobile keeps `9:05 AM` at every
band. That's the compact side of the same surface split the desktop
change makes — a mobile timestamp sits inside a chat bubble on a narrow
screen with the day divider a short scroll away, where a date word costs
width it doesn't earn. Recorded as a decision at `formatMessageTime` so
it doesn't read as an oversight.

Mobile needs no middot work: message headers have no "managed by"
segment, and the mention suggestion list already uses `\u00b7`.

Validation: `dart format` clean, `flutter analyze` no issues, `flutter
test` **911 passed, 1 skipped** — 8 new day-heading tests covering the
weekday band, the year boundary, ordinals across
1/2/3/11/12/13/21/22/23/31, distinct labels for consecutive days in the
oldest band, and calendar-day rather than 24-hour bands.

## Out of scope

- **Search results.** `SearchResultItem.tsx` and `TopbarSearch.tsx`
hand-roll a `5m ago` elapsed format. That's a third *kind* of label —
elapsed rather than relative-calendar — and deciding whether search
should switch is a separate call.
- **`formatThreadSummaryLastReplyTime`** keeps its own "3 hours ago"
elapsed scale on both platforms; only its old-reply fallback lost the
ordinal (`on May 19th` → `on May 19`).
- **Mobile search.** `relativeTime` returns `7/31/2026` past a week,
matching the desktop search format that's also out of scope above. Both
should change together or not at all.

---------

Signed-off-by: Clay Delk <clay.delk@gmail.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
## Summary

- make `VISION.md`, relevant `VISION_*.md`, and applicable testing
guides explicit planning and review inputs for non-trivial Buzz changes
- teach managed agents to load repository-root and path-local
`AGENTS.md` files after selecting a checkout
- distinguish CI evidence from exercising the live workflow for
user-visible and integration behavior
- turn repeatable mistakes into same-session durable lessons, keeping
only load-bearing rules in core memory and promoting shared lessons to
team guidance
- pin the new managed-agent prompt invariants in tests
- preserve the exact display name shown in Buzz when mentioning or
addressing someone; never infer or look up a surname merely to sound
more complete

### Related issue

None found after searching `block/buzz` issues and PRs for agent
instruction, vision, and product-intent routing.

### Testing

At commit `07ef705b42f58d3be6981165c6959d541ada0ba7`:

- `cargo fmt --all -- --check`
- `cargo test -p buzz-acp agent_draft_prompt_tests` (4 passed)
- mandatory pre-push hooks passed on the exact pushed head:
`branch-skew`, `desktop-check`, `desktop-typecheck`, `mobile-test`,
`desktop-test`, `rust-tests`, and `desktop-tauri-checks`
- `git diff --check origin/main...HEAD`

---------

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## What changed

- render video-review timecode chips inside the first Markdown paragraph
so comment text wraps naturally around them
- reuse the canonical video-review chip treatment across the timeline,
Inbox previews, and Inbox detail
- preserve video-review context in Inbox so timestamp chips remain
interactive

## Why

Video comments now support Markdown-like effects, but non-player
surfaces rendered the timestamp beside a separate text layout. That kept
the chip and comment from sharing the same inline flow and made Inbox
behavior inconsistent with the player.

## Validation

- `pnpm --dir desktop check`
- 100 focused Markdown, timecode, video-review, and Inbox unit tests
- `pnpm --dir desktop build:e2e`
- focused `video-attachment.spec.ts` Playwright scenario
- pre-push desktop typecheck and 4,761-test desktop suite
- native Builderlab staging with the configured profile

Focused timeline and Inbox snapshots will be attached in a PR comment.

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Signed-off-by: Fast Fizz <2df81cb51f05a9d5387ef24d7b9ecb8fcdfcd1c70ffabc67061c9596e1b5b1c4@buzz.block.builderlab.xyz>
Co-authored-by: Fast Fizz <2df81cb51f05a9d5387ef24d7b9ecb8fcdfcd1c70ffabc67061c9596e1b5b1c4@buzz.block.builderlab.xyz>
**Category:** improvement
**User Impact:** Buzz channel, message, repository, pull request, and
issue links now open reliably and display recognizable context in the
desktop app.
**Problem:** Buzz links could appear as raw or ambiguous URLs, and
navigation links received during startup or community transitions could
be dropped before the UI was ready. Repository and issue shares in
particular required hover context to understand at a glance.
**Solution:** Queue desktop channel/message navigation until the UI is
ready, then render bare Buzz permalinks as icon-prefixed chips with
concise entity context while preserving user-authored Markdown labels as
ordinary links.

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

**desktop/src-tauri/src/deep_link.rs**
Adds validated channel-link parsing and a deduplicated, acknowledged
queue so navigation survives frontend startup.

**desktop/src-tauri/src/lib.rs**
Registers the pending-navigation state and commands with the desktop
application.

**desktop/src/features/communities/useCommunityInit.ts**
Resets queued navigation safely across community boundaries without
leaking stale destinations.

**desktop/src/features/messages/lib/channelLink.test.mjs**
Covers valid, malformed, and canonical channel permalink forms.

**desktop/src/features/messages/lib/channelLink.ts**
Defines strict parsing and detection for `buzz://channel/<uuid>` links.

**desktop/src/features/messages/lib/composerMessageLinkNode.test.mjs**
Extends composer-node coverage for normalized Buzz link content.

**desktop/src/features/messages/lib/composerMessageLinkNode.ts**
Keeps composer link-node handling aligned with the expanded Buzz link
surface.

**desktop/src/features/messages/lib/remarkChannelDeepLinks.test.mjs**
Verifies bare channel URLs become renderable deep-link nodes without
touching code.

**desktop/src/features/messages/lib/remarkChannelDeepLinks.ts**
Transforms eligible bare channel links into dedicated Markdown nodes.

**desktop/src/features/messages/lib/remarkEntityLinks.test.mjs**
Covers bare repository, pull-request, and issue detection and code-span
exclusions.

**desktop/src/features/messages/lib/remarkEntityLinks.ts**
Adds dedicated Markdown nodes for bare Buzz project entities.

**desktop/src/shared/deep-link.test.mjs**
Exercises queued navigation, acknowledgement, serialization, and
community-switch behavior.

**desktop/src/shared/deep-link.ts**
Serializes pending deep-link drains and acknowledges destinations only
after successful navigation.

**desktop/src/shared/styles/globals/markdown.css**
Aligns permalink icon geometry and spacing with agent mention chips.

**desktop/src/shared/ui/markdown.test.mjs**
Adds integration coverage for every permalink chip, authored labels,
fallbacks, icons, and static rendering.

**desktop/src/shared/ui/markdown.tsx**
Routes channel and entity nodes through the shared presentation path
while preserving authored link text.

**desktop/src/shared/ui/markdown/BuzzLinkChip.tsx**
Introduces the shared interactive/static permalink chip and
authored-label inline-link components.

**desktop/src/shared/ui/markdown/ChannelDeepLink.tsx**
Renders channel shares and references with Hash icons, names, and
shortened-ID fallbacks.

**desktop/src/shared/ui/markdown/MessageLinkPill.tsx**
Renders ordinary message shares with message icons and channel/message
context while retaining sent-from-thread behavior.

**desktop/src/shared/ui/markdown/entityLinks.tsx**
Maps repositories, pull requests, and issues to Projects-aligned icons
and contextual labels.

**desktop/src/shared/ui/markdown/nodeCache.ts**
Includes entity-link rendering in cached Markdown node handling.

**desktop/src/shared/ui/markdown/utils.ts**
Allows validated channel links through the Buzz URL transform.

**desktop/src/shared/useMessageDeepLinks.ts**
Drains queued navigation links safely and clears them during teardown.

**desktop/src/testing/e2eBridge.ts**
Extends the mock bridge with pending-navigation command behavior.

**desktop/tests/e2e/community-rail.spec.ts**
Verifies queued links do not cross community boundaries.

**desktop/tests/e2e/navigation.spec.ts**
Covers channel/message deep-link navigation during startup and active
sessions.

**desktop/tests/helpers/bridge.ts**
Adds reusable deep-link mock state and acknowledgement helpers.


</details>

## Reproduction steps
1. Run the desktop app and open a channel containing bare
`buzz://channel`, `buzz://message`, `buzz://repo`, `buzz://pr`, and
`buzz://issue` URLs.
2. Confirm each bare URL renders as one cohesive chip with a type icon,
a useful name or shortened identifier, and no duplicated channel `#`
character.
3. Add an authored Markdown link such as `[design
discussion](buzz://issue?...)` and confirm the supplied label remains an
ordinary link rather than becoming a chip.
4. Select channel and message links and confirm they navigate correctly
in warm and cold-start states.

## Screenshots / demos
Houston dark theme with custom purple accent (`#a855f7`), captured from
rebased visual implementation `ad411cc06`; current head `0aafa144f` only
adjusts E2E expectations for the visible mention-label behavior shown
here.

**Composer — channel, message, repository, pull request, and issue
pills**

![Composer with all Buzz permalink pill types in Houston dark theme and
purple
accent](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5638/composer-all-permalink-pills-dark-purple.png)

**Message list — channel, message, repository, pull request, and issue
pills**

![Message list with all Buzz permalink pill types in Houston dark theme
and purple
accent](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5638/message-list-all-pill-types-dark-purple.png)

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Signed-off-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@buzz.block.builderlab.xyz>
Co-authored-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@buzz.block.builderlab.xyz>
…ck#5510)

### Overview

**Category:** fix
**User Impact:** When a user re-pastes (or finishes typing) a link that
previously failed to load a preview, the composer now refetches it
immediately and can never send a snapshot preview built from the old,
stale metadata.
**Problem:** The link-preview cache is shared with passive message-list
scroll, so a URL that resolved to a negative result (a hard `null` miss
or a transient fetch failure) stayed cached and re-usable. Re-pasting
that exact link into the composer served the stale negative and never
refetched. Worse, the stale metadata was still `snapshotReady`, so a
fast clear-then-repaste could attach a **stale snapshot preview tag** to
the sent message — a preview that no longer matched the link.
**Solution:** A freshly-entering link is forced to refetch, and the
composer is fenced against ever shipping a tag built from pre-re-entry
metadata. This closes three distinct races surfaced over successive
review passes: (1) the shared negative cache being reused on re-entry;
(2) the resolver's debounce swallowing a fast clear+re-paste so the
re-entry was invisible and the stale tag stayed sendable; and (3) an
in-flight media upload started from the stale metadata publishing its
tag after fresh metadata had already arrived. Healthy cached hits are
never touched (instant card, no redundant fetch), and passive
message-list scroll — which never opts in — keeps riding the shared
cache exactly as before.

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

**desktop/src/shared/lib/useResolvedLinkPreviews.ts**
Adds a loader `invalidateNegative(href)` that drops a cached negative
result (resolved `null` or transient fail) while leaving healthy hits
and in-flight promises alone, and a `refetchNewNegatives` option that
invalidates each newly-present href's negative entry before the
peek/load loop reads the cache. Also adds an optional `liveHrefs` input
so newness is judged against the caller's LIVE (undebounced) content — a
debounce-swallowed leave/re-entry of the same URL still counts as new.
Because the hook retains its own resolved metadata (the render that
scheduled the effect already read the stale negative from it), it also
clears its OWN negative key for every re-entered href, so the link
renders as pending until the fresh load wins. `buzz://` entity links are
skipped (they resolve off the relay, not this cache).

**desktop/src/features/messages/ui/useComposerLinkPreviews.tsx**
Opts the composer into `refetchNewNegatives` and feeds it the live
hrefs. Detects a same-URL re-entry at render time (React batches the
empty→repaste renders, so an effect keyed on the live set never observes
the transition), then blocks the re-entered href until the resolver's
forced refetch visibly cycles through pending: its stale ready tag is
dropped from state and excluded from the sendable output until a fresh
result re-tags. Only the sendable negative case (`fallback`) is blocked;
a healthy (`image`) re-entry keeps its instant card. Adds a per-href
upload generation token (`uploadsRef` becomes `Map<href, generation>`):
a live re-entry bumps the generation, the upload effect's dedup guard
and completion are generation-aware, so an in-flight upload from stale
metadata cannot publish its tag after settling and a fresh upload can
start even while the superseded one is still in flight.

**desktop/src/shared/lib/useResolvedLinkPreviews.test.mjs**
Adds resolver-level regressions: `invalidateNegative` drops a cached
miss (next load refetches) but preserves a healthy hit (no redundant
fetch); transient failure → URL removed → re-entered renders
pending/not-`snapshotReady` until a successful retry; and the
retained-negative + shared in-flight-fetch + re-entry interleaving
clears the local negative regardless of the shared entry's shape.

**desktop/src/features/messages/ui/useComposerLinkPreviews.test.mjs**
Adds composer-hook regressions driving the REAL hook through the hostile
gestures: a fast clear+re-paste inside the debounce window drops the
stale tag and holds Send pending until a fresh tag carrying the
newly-fetched media lands; and a stale in-flight upload held across the
clear+re-paste and fresh-metadata resolution cannot publish its
pre-clear tag, while a fresh upload starts and its tag wins.

</details>

### Reproduction Steps

1. Paste a link whose preview fails to resolve (force a transient fetch
failure) so the composer shows a blank/collapsed card.
2. Clear the composer and re-paste the same link (quickly, within the
~350ms debounce window).
3. Observe the preview refetches immediately rather than reusing the
stale negative result, and Send stays disabled until a fresh tag lands.
4. Send the message and confirm the attached preview tag reflects the
fresh fetch, never the stale pre-clear metadata.
5. Confirm passive message-list scroll of already-resolved links still
shows cards instantly with no extra fetches.

### Notes

Scope grew across three review passes from the original single resolver
opt-in into a full defense against shipping stale snapshot tags on link
re-entry — see the scope-adjustment comment on this PR for the detail.
Stacked on block#5245 (`tho/link-preview-snapshot-race`), whose rewrite of
`useComposerLinkPreviews.tsx` is the sole overlapping file. The
transient-retry work stays in block#5502, which touches no composer file and
remains based on main.

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Summary

- wait for the channel mutation and cache invalidation E2E hooks before
using them
- make those hooks required after readiness instead of silently skipping
fixture setup
- keep the production channel settings behavior and assertion unchanged

## Why

On slower CI startup, `page.goto()` can resolve before the E2E bridge
installs its globals. The test used optional calls, so all three fixture
operations could silently do nothing and leave the seeded `General
discussion for everyone` description in React Query. The assertion then
failed deterministically, including both retries.

## Validation

At commit `5b4d5d290b316db5eef78c3596a17c7a270c8163`:

- `pnpm -C desktop build:e2e`
- focused Playwright test repeated 30 times: 30 passed
- `pnpm -C desktop exec biome check tests/e2e/channels.spec.ts`
- mandatory pre-push hooks passed on the exact pushed head:
`branch-skew`, `desktop-check`, `desktop-typecheck`, `mobile-test`,
`desktop-test`, `rust-tests`, and `desktop-tauri-checks`
- `git diff --check origin/main...HEAD`

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
**Category:** improvement
**User Impact:** Buzz channel, message, repository, pull request, and
issue links now display recognizable context and navigate reliably in
the mobile app.
**Problem:** Bare Buzz permalinks appeared as raw or ambiguous URLs on
mobile, while channel and message links were not handled consistently
across Markdown forms and startup states.
**Solution:** Normalize eligible bare Buzz URLs without consuming
Markdown syntax, render them as semantic icon-prefixed chips, and route
channel/message targets through the mobile deep-link dispatcher while
preserving authored Markdown labels as ordinary links.

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

**mobile/lib/features/channels/deep_link_dispatcher.dart**
Routes parsed channel and message links through the appropriate in-app
navigation callbacks.

**mobile/lib/features/channels/message_content.dart**
Presents all bare Buzz permalinks as semantic icon chips and keeps
authored labels as ordinary links.

**mobile/lib/features/channels/message_content/link_normalizer.dart**
Normalizes bare and autolinked Buzz URLs without consuming Markdown
delimiters, code, or punctuation.

**mobile/lib/shared/deeplink/deep_link.dart**
Adds strict channel and project-entity parsing alongside message deep
links.

**mobile/lib/shared/deeplink/pending_deep_link_provider.dart**
Preserves pending navigation until the mobile routing surface is ready.

**mobile/test/features/channels/channel_detail_page_test.dart**
Updates navigation integration coverage for icon-prefixed channel chips.

**mobile/test/features/channels/deep_link_dispatcher_test.dart**
Covers channel/message dispatch and missing-target behavior.


**mobile/test/features/channels/message_content/link_normalizer_test.dart**
Exercises Markdown-safe normalization across the full Buzz link suite.

**mobile/test/features/channels/message_content_test.dart**
Verifies chip labels, icons, semantics, authored-label opt-out, and
navigation callbacks.

**mobile/test/shared/deeplink/deep_link_test.dart**
Covers strict parsing for channel, message, repository, pull-request,
and issue links.

</details>

## Reproduction steps
1. Run the mobile app and open a channel containing bare
`buzz://channel`, `buzz://message`, `buzz://repo`, `buzz://pr`, and
`buzz://issue` URLs.
2. Confirm each bare URL renders as one cohesive chip with a type icon,
a useful name or shortened identifier, and no duplicated channel `#`
character.
3. Add an authored Markdown link such as `[design
discussion](buzz://issue?...)` and confirm the supplied label remains an
ordinary link rather than becoming a chip.
4. Select channel and message links and confirm they navigate correctly
from inline and autolinked forms.

## Screenshots / demos
**iOS Simulator — channel, message, repository, pull request, and issue
permalink chips**

Real app build (`37b2cb5eb`) running on an iPhone 17 Pro simulator.

![Mobile permalink chips on iOS
Simulator](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5639/mobile-permalink-chips-simulator.png)

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@buzz.block.builderlab.xyz>
Co-authored-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Summary

- accept `buzz://channel/<uuid>/<64-hex-event-id>` as a compatibility
message deep link
- activate the desktop window and route path-form message links through
the existing durable message-navigation queue
- support the same path form when rendered or pasted inside Buzz, while
canonicalizing composer output to `buzz://message?...`
- retain the existing one-segment channel-link behavior and reject
malformed event IDs or extra segments

## Context

Buzz Desktop 0.5.11 has no native `channel` route. The recently merged
channel-link handling on main recognizes `buzz://channel/<uuid>`, but
rejects the externally shared `<channel>/<event-id>` form before window
activation. On macOS that presents as Buzz taking the menu bar while its
window neither foregrounds nor navigates.

## Test plan

- `cargo test --manifest-path desktop/src-tauri/Cargo.toml
parse_channel_deep_link`
- focused channel-link, composer-link, and markdown unit tests
- `pnpm typecheck`
- mandatory pre-push hook: desktop checks, full desktop unit tests, and
Tauri/Rust checks

Installed-app external-open behavior requires a build containing this
change; 0.5.11 cannot exercise it because that release predates native
channel-link handling.

---------

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
…e echo (block#5879)

## Problem

Desktop webview CPU stayed high after the presence-scope fix (block#5830) and
the shared useNow ticker (block#5861). A per-kind byte tap hot-patched into
`relayClientSession.ts` on a live desktop (~500 channels, large agent
fleet; 850 s capture correlated with CPU sampling) showed the remaining
steady-state relay traffic is mostly self-inflicted:

| kind | what | share of inbound bytes | shape |
|------|------|-----------------------|-------|
| 30078 | read-state | **34%** | our own ~44 KB nip44 blob echoed back
every ~10-30 s while reading |
| 30030 | emoji union | **33%** | 2-min poll refetching every member's
full set (~300 KB burst) |
| 30175 | persona catalog | **13%** | same 2-min backstop pattern, ~150
KB per walk |

CPU tracked the bursts directly: 3-5% in quiet 10 s buckets vs 44-54% in
buckets containing a poll burst or read-state echo. (The kind-24200
observer-frame theory was tested and disproven by the same tap: 9.7% of
bytes, steady trickle.)

## Outcome

- **Read-state echo drop.** `ReadStateManager` remembers the ids of
events it just published (FIFO set capped at 64) and drops their relay
echoes before the nip44-decrypt + `JSON.parse` step. Ids are recorded
*before* publishing so relay fan-out can't race the OK. The drop
consumes the id, so a reconnect replay of the same event still parses
normally. Events from other clients of the same pubkey are untouched.
- **Poll backstops stretched 2 min → 20 min** for the emoji union and
persona catalog queries. The live subscriptions (invalidate on any new
30030/30175) and the reconnect invalidations remain the freshness paths;
the poll only exists to cover a silently dropped live event. Behavior on
publish, focus, and reconnect is unchanged.
- Mechanical: localStorage identity helpers moved to
`readStateIdentity.ts` (no behavior change) to keep
`readStateManager.ts` under the file-size ratchet.

Expected effect on the measured profile: the poll stretch cuts the
30030/30175 bursts (46% of inbound bytes) by 10x; the echo drop removes
the recurring ~44 KB nip44-decrypt + parse per publish cycle (the echo
still arrives on the wire — nostr filters cannot exclude own-author
events — so this is a CPU/IPC saving, not a bandwidth one).

## Acceptance

- New tests: echo dropped **before** decrypt (mutation-checked:
disabling the drop fails the test), replayed duplicate of the same id
still parses, foreign-client events always parse, published-id set stays
capped when publishes fail (never-echoed ids).
- Full desktop suite **4794/4794**, `tsc --noEmit` clean, `pnpm check`
(biome + ratchets) clean at head.

## Not addressed (follow-ups)

- The 44 KB blob itself (one read-state event carries all ~500 channels;
a delta or per-channel-shard format is a protocol change).
- Duplicate delivery of the same events on concurrent `history-`
subscriptions (relay/client dedupe).
- Webview RSS of 12.5 GB observed on the same machine — retention hunt
is separate work; shrinking the heap multiplies the value of this PR
since the GC floor scales with live-heap size.

Signed-off-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
Co-authored-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
)

**Category:** fix
**User Impact:** Messages send immediately after submission while link
previews finish in the background, with an option to skip delayed
preview preparation.

**Problem:** Waiting for link-preview metadata or snapshot uploads kept
the composer occupied after users pressed Send, while races between
completion, timeout, and cancellation risked inconsistent payloads.
**Solution:** Freeze and promote speculative preview work into a bounded
background send task, clear the composer immediately, and
publish exactly once with prepared previews or gracefully without them
when skipped, failed, or timed out.



https://github.com/user-attachments/assets/987d2f2c-679f-473a-965f-dfb279951e52



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

**desktop/src/features/communities/useCommunityInit.ts**
Resets pending link-preview preparation when community context changes
so work cannot cross community boundaries.

**desktop/src/features/messages/lib/linkPreviewPreparationStore.ts**
Adds the coordinator-owned preparation state machine, bounded fallback,
Skip behavior, and exactly-once terminal publication handling.

**desktop/src/features/messages/ui/ComposerUploadProgressOverlay.tsx**
Extends floating background progress UI to include link-preview
preparation.

**desktop/src/features/messages/ui/ComposerUploadProgressPill.tsx**
Adds the preparing-link-preview label and Skip action to the progress
pill.

**desktop/src/features/messages/ui/MessageComposer.tsx**
Hands submitted preview work to the background coordinator and clears
the composer immediately.

**desktop/src/features/messages/ui/messageComposerAutoSubmit.test.mjs**
Updates auto-submit unit coverage for coordinator-owned preview
preparation.

**desktop/src/features/messages/ui/messageComposerAutoSubmit.ts**
Allows submit to promote unfinished preview work instead of blocking
composer submission.

**desktop/src/features/messages/ui/useComposerLinkPreviews.tsx**
Starts preview work speculatively and exposes frozen preparation jobs
for adoption by the send flow.

**desktop/src/features/messages/ui/useMentionSendFlow.helpers.ts**
Carries prepared preview tags through the mention and media payload
helpers.

**desktop/src/features/messages/ui/useMentionSendFlow.ts**
Integrates prepared preview tags into final message publication.

**desktop/src/shared/lib/useResolvedLinkPreviews.ts**
Exposes the in-flight metadata promise so promoted work can be adopted
rather than restarted.

**desktop/tests/e2e/messaging.spec.ts**
Covers immediate submit, upload handoff, Skip/completion races, failure
fallback, auto-send, and exactly-once publication.

</details>

## Reproduction steps

1. Enter a supported link and press Send while preview metadata or
snapshot upload is still pending.
2. Confirm the composer clears immediately and the floating progress UI
shows **Preparing link preview · Skip**.
3. Let preparation finish and confirm one message is published with its
preview.
4. Repeat and choose **Skip**; confirm one message is published without
waiting for the preview.
5. Simulate preview failure or timeout and confirm the message still
publishes once without preview tags.

## Validation

- TypeScript, Biome/format, file-size, px-text, and pubkey checks
- Full desktop unit suite: 4,734 passed
- Focused Playwright messaging suite: 5 passed
- Push hooks at `86c0aa7de2ff81b79286c99bf23db12345adc6ca`: desktop
check, typecheck, and tests passed

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <acda9e433d19dcd0e6b6840f7f4b98f3a56f1fab98049d444c087019e6d36560@buzz.block.builderlab.xyz>
Co-authored-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Problem

Every observer-store publication made the active-turn bridge scan every
running/deployed agent and replay each agent's retained observer
journal. Watermarks kept the replay idempotent, but did not remove the
repeated work. Under an active fleet, one changed agent therefore caused
work proportional to the whole fleet and its retained history.

## Change

- observer publications now identify the changed agent and only the
newly admitted, retained events
- the active-turn bridge still performs one full hydration when its
agent list mounts or changes
- steady-state publications process only that changed active agent's
delta
- other observer-store subscribers keep their existing notification
behavior
- duplicate-only envelopes still do not publish

## Correctness

Regression coverage pins:

- retained/duplicate history is omitted from deltas
- stopped-agent updates do not enter active-turn state
- an incremental terminal clears a turn hydrated from retained history
- batching still publishes once and preserves transcript/terminal
outcomes
- existing watermark, tombstone, pruning, community restore, clear, and
eviction suites remain green

## Validation

Exact pushed head: `a480ffd2531023ea32b2a5518b5d9d41f04577c8`

- focused active-turn + observer-retention suites: 90 passed
- full desktop suite: 4,891 passed
- `pnpm --dir desktop typecheck`: passed
- `pnpm --dir desktop check`: passed (pre-existing repository warnings
only)
- mandatory pre-push hook at the exact pushed head: passed
`branch-skew`, desktop check/typecheck/test, mobile tests, Rust tests,
and Desktop Tauri checks

Packaged same-fleet CPU/RSS validation is follow-up evidence; this PR
proves the algorithmic amplification is removed without claiming an
installed-app percentage from unit tests.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Summary

Buzz Mobile now expands decrypted ACP observer batch envelopes into
their inner telemetry frames before sending them through the existing
per-agent dedupe, ordering, cap, and channel-filter pipeline. Singleton
observer events keep their existing behavior.

Malformed batch envelopes remain visible as outer frames, matching the
desktop consumer convention, while invalid inner frames use the existing
observer decrypt error path. This restores batched agent progress, tool
activity, and incremental transcript updates that Mobile previously
ignored.

### Related issue

Related to block#4917.

### Testing

Added tests:

-
[`observer_subscription_test.dart`](https://github.com/block/buzz/blob/main/mobile/test/features/channels/agent_activity/observer_subscription_test.dart)
covers valid batches, singleton behavior, malformed envelopes, and
invalid inner frames.

Full mobile analysis, formatting, file-size validation, and Flutter
tests passed. The repository pre-push gate also passed.

---------

Signed-off-by: Tom Brow <tomb@block.xyz>
Co-authored-by: Tom Brow <tomb@block.xyz>
Co-authored-by: Codex <noreply@openai.com>
## Buzz Desktop release v0.5.12

- **Frozen main:** `757779bb1ef22cc4a1c233344baa0946d907e5a6`
- **Reviewed candidate:** `bfc34904adc414efcd8e9c5548dff82c3545b677`
- **Previous desktop release:** `desktop-v0.5.11`
- **Proposed immutable tag:** `desktop-v0.5.12`

This PR may be **squash merged** after the Desktop Release Candidate
check and all protected-branch checks pass. Merging authorizes
publication of the exact reviewed candidate; later or unrelated changes
on `main` cannot alter it.

The checked-in changelog accounts for every non-merge commit in the
release range. The Desktop tag points to the reviewed candidate commit,
not the later squash commit. Publication remains bound to that immutable
candidate tag.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Release Automation <release-automation@users.noreply.github.com>
)

## Summary

Projects v3 makes repository work shareable, discussion-aware, and
easier to scan in one coherent workspace. People can copy canonical
links, reopen the exact workspace tab, understand issue and pull-request
context at a glance, find related channel conversations, and assign or
unassign issues across Desktop and CLI.

- **Unified workspace** — top-level sections sit above repository
controls in one rounded workspace, with navigation positioned close to
the page heading. README and Files retain branch selection; every
section has a labeled icon header, and Issues and Pull Requests expose
creation from a consistent right-aligned action.
- **Repository management** — the repository selector is always
available, including single-repository projects. Its integrated add flow
lets project owners create a repository manually or select an existing
repository without a separate toolbar button.
- **Readable work-item lists** — issue and pull-request rows use
plain-language context instead of opaque metadata. Files, commits,
issues, pull requests, channels, and contributors share consistent row
density and right-aligned timestamps, while deterministic
fallback-avatar colors keep participants distinct on light backgrounds.
Inbox pull-request metadata wraps between complete phrases and truncates
long channel names instead of compressing copy into narrow columns.
- **Reliable entity links** — projects, repositories, issues, pull
requests, and commits have canonical `buzz://` links, preview cards, OS
deep-link routing, and tab-aware navigation. Reopening the same link
re-applies its destination instead of leaving the user on a locally
selected tab.
- **Related conversations** — repository and work-item views surface
channels discussing the current entity, including participants, channel
navigation, message context, and an explicit notice when discovery
reaches its 500-result cap.
- **Reversible issue ownership** — trusted assignment and unassignment
events work across Desktop, Tauri, `buzz-sdk`, and `buzz issues`.
Assignees appear in project views and the assigned inbox, while
authorized users can remove assignments directly from the assignee row.

Assignment state is derived chronologically from labeled Nostr notes.
Issue authors and repository owners may change any assignee; other users
may only assign or unassign themselves. Shared golden fixtures keep
entity-link grammar and validation aligned across TypeScript and Rust.

The branch also updates `webbrowser` to the patched release for
RUSTSEC-2026-0257.

### Related issue

N/A.

### Testing

- [x] `just ci` — formatting, lint, typechecking, unit tests, and builds
passed
- [x] Full pre-push suite — organization, branch-skew, Desktop checks,
typechecking, and tests passed on the latest push
- [x] `cargo test -p buzz-cli` and focused `buzz-sdk` assignment tests
passed
- [x] Focused Tauri recipient-note and 500-result search-limit tests
passed
- [x] Desktop entity-link and issue-assignment unit tests passed
- [x] Playwright smoke coverage passed for assignment, repeated
entity-link navigation, repository create/select flows, section headers
and actions, timestamp alignment, timeline icons, sentence-style
issue/PR metadata, header spacing, avatar contrast, and Inbox metadata
at stacked and side-rail breakpoints
- [ ] Manual staging pass: link round-trips, Channels tab, assignment
flows, and inbox routing

### Screenshots

Pull requests explain who opened the request, where it lives, and which
branch it comes from; fallback avatars remain visually distinct.

![Pull request list with conversational
metadata](https://raw.githubusercontent.com/block/buzz/2a536de86f7e6f79b349d7bc147b2923ff2b817d/pr-5624--05-pr-list-metadata.png)

Issues use the same sentence-style hierarchy while keeping status and
recency easy to scan.

![Issue list with conversational
metadata](https://raw.githubusercontent.com/block/buzz/2a536de86f7e6f79b349d7bc147b2923ff2b817d/pr-5624--06-issue-list-metadata.png)

The wide Inbox detail keeps author, timestamp, and origin context
readable beside its metadata rail.

![Pull request Inbox detail with readable
metadata](https://raw.githubusercontent.com/block/buzz/e65b433e14b97c45365ed7b68ea402ec01d26615/pr-5624--02-pull-request-detail-wide.png)

[View the complete six-state Projects v3 screenshot
set](block#5624 (comment))
and [the compact/wide Inbox
comparison](block#5624 (comment)).


---

> Supersedes block#5624, whose head commit accumulated permanently-queued
required check suites (block-dco-check et al.) that GitHub never
dispatched. History flattened into a single signed-off commit on latest
main; tree verified byte-identical (`git merge-tree`) to merging the
original branch into main.

---------

Signed-off-by: Thomas Petersen <thomasp@squareup.com>
Co-authored-by: Wintermute <3f1797424fd9ad6653a83665c660517777cd7f8c228c0d5907f49e01537f3ca5@buzz.block.builderlab.xyz>
## Problem

PR block#5574's profile-panel redesign dropped `ProfileSummaryView`'s
`onCreateCard` prop — the only caller of `setCardMintTarget` — so the
entire Agent Trading Cards feature (block#3278) became unreachable from the
GUI while staying fully wired underneath: mint dialog, background job
store, viewer, gallery, composer chip, and the Rust
`mint_agent_card`/`save_agent_card` commands all survive at main. `git
log -S 'setCardMintTarget('` shows exactly two commits: the feature and
the accidental removal.

## Outcome

The mint trigger returns as a management row in the agent profile's Info
tab, directly under **Export agent**, gated `isBot && canManagePersona`
exactly like Duplicate/Export. Target resolution is byte-for-byte the
original logic: prefer the live instance pubkey, fall back to the
persona/definition id, allow locking only when an instance keypair
exists.

## Shape

- `UserProfileAgentManagementRows`: new optional `onCreateCard` row
(Sparkles icon, `user-profile-create-card-row`), placed after Export.
- Prop threaded `UserProfilePanel` → `ProfileSummaryView` →
`ProfileInfoTabContent` → management rows, mirroring `onExportAgent` at
every layer.
- The mint-target state + open callback move into a `useCardMint` hook
in `UserProfilePersonaDialogs` (beside the `CardMintTarget` type it
manages). This keeps `UserProfilePanel.tsx` at 999 lines — the file sits
at the size-ratchet cap and may not grow.

## Validation

- `pnpm check` green (biome, file-size ratchet, px-text,
pubkey-truncation).
- `pnpm typecheck` green.
- Full desktop unit suite: **4888 passed, 0 failed**.
- Profile e2e spec: **32 passed**, including the updated
management-row-order assertion and a new click → mint-dialog-visible →
Escape → closed exercise of the restored row.

Verified at `bff3110a0aeb3d63683eac9ed3e587829f9436da`, one commit atop
main `01f76ec97`.

Signed-off-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
Co-authored-by: Eva <011987e296fd5006292d2f930b574be47c7801048d1983c46c425d3c95f0cffd@buzz.block.builderlab.xyz>
…5910)

## Summary

- replace the nested one-line shell quoting used to read the Playwright
package version
- write the resolved version to `GITHUB_OUTPUT` from a multiline shell
step

## Why

The `desktop-v0.5.12` release smoke job failed before executing tests
because Bash received escaped quotes inside command substitution and
parsed the Node expression as shell syntax.

## Validation

- `bash scripts/test-release-ref-contract.sh`
- isolated execution of the new shell fragment with a fixture
`@playwright/test/package.json`, producing `version=1.58.2`
- `git diff --check`

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Buzz Desktop release v0.5.13

- **Frozen main:** `09768100ec3420f0aa7cd278bd00fe0baab5de8d`
- **Reviewed candidate:** `a239e0f6793ac6e88ccf92cc231054090a9753cc`
- **Previous desktop release:** `desktop-v0.5.12`
- **Proposed immutable tag:** `desktop-v0.5.13`

This PR may be **squash merged** after the Desktop Release Candidate
check and all protected-branch checks pass. Merging authorizes
publication of the exact reviewed candidate; later or unrelated changes
on `main` cannot alter it.

The checked-in changelog accounts for every non-merge commit in the
release range. The Desktop tag points to the reviewed candidate commit,
not the later squash commit. Publication remains bound to that immutable
candidate tag.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Release Automation <release-automation@users.noreply.github.com>
## Summary

- remove the GitHub-hosted desktop smoke job from the desktop release
workflow
- remove the smoke result from manifest assembly dependencies and
promotion conditions
- retain the local smoke tooling for future repair and targeted
validation

The first release execution of this gate spent its full 10-minute
Playwright timeout traversing the 10,000-row fixture, then produced a
987 MB diagnostics upload. All signed platform builds succeeded, but the
smoke prevented manifest publication. This restores the previously
established release boundary while the harness is made suitable for CI
separately.

### Testing

- parsed `.github/workflows/release.yml` with Ruby Psych and asserted
the smoke job/dependencies are absent
- `scripts/test-release-ref-contract.sh`
- exact pushed commit passed the repository pre-push hook

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
## Buzz Desktop release v0.5.14

- **Frozen main:** `1b3dbcaaea882eeea90359c1db02e306d2f4f50a`
- **Reviewed candidate:** `391495e7d347d20b67e39e3c240d17ef63c5c2c0`
- **Previous desktop release:** `desktop-v0.5.13`
- **Proposed immutable tag:** `desktop-v0.5.14`

This PR may be **squash merged** after the Desktop Release Candidate
check and all protected-branch checks pass. Merging authorizes
publication of the exact reviewed candidate; later or unrelated changes
on `main` cannot alter it.

The checked-in changelog accounts for every non-merge commit in the
release range. The Desktop tag points to the reviewed candidate commit,
not the later squash commit. Publication remains bound to that immutable
candidate tag.

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Release Automation <release-automation@users.noreply.github.com>
## Summary

- refine mobile message metadata, search spacing, and Activity filter
semantics
- add channel-parity Latest navigation and stable tail following to
threads
- synchronize Android composer/keyboard geometry and keep Latest spacing
stable across IME transitions

## Validation

- `bin/just mobile-check`
- `bin/just mobile-test` (1,276 tests)
- Pixel 10 install/launch and channel/thread keyboard, Latest, tail, and
back-navigation review
- signed iPhone install/launch workflow

## Snapshots

See the review snapshots below.

---------

Signed-off-by: kenny lopez <klopez4212@gmail.com>
Signed-off-by: Kenny Lopez <klopez4212@gmail.com>
Signed-off-by: Princess Donut <b238ea756dee4d98afa5883fc7f1de61eeabe65bf700e3a5a5a80db5e42e2c2b@buzz.block.builderlab.xyz>
Co-authored-by: Fast Fizz <2df81cb51f05a9d5387ef24d7b9ecb8fcdfcd1c70ffabc67061c9596e1b5b1c4@buzz.block.builderlab.xyz>
Co-authored-by: Princess Donut <b238ea756dee4d98afa5883fc7f1de61eeabe65bf700e3a5a5a80db5e42e2c2b@buzz.block.builderlab.xyz>
…ng over the community rail (block#5947)

## Summary

Collapsing the sidebar left a phantom copy of it painted over the
community/relay rail — opaquely on flat themes (vesper et al., which
made the rail look *removed*), and as ghost fragments (muted search-box
fill, truncated channel-name tails) on the Buzz themes whose chrome is
intentionally transparent for the gradient.

**Cause:** block#4281 made the app-sidebar layer `overflow-visible` (the
huddle drawer needs to escape it). That removed the ancestor clipping
the offcanvas collapse relied on: the sidebar slides to `left:
-sidebar-width` but kept painting, exactly over the `z-0` rail (`z-10`
sidebar layer).

**Fix:** the offcanvas-collapsed sidebar container is now `invisible` +
`pointer-events-none`, with `visibility` added to the transition list so
the 200 ms slide-out still animates and the flip happens only at the
transition's end. Theme-independent; no per-theme CSS touched; the
huddle drawer's `overflow-visible` is preserved.

## Before / after

Left 420px of the app with the sidebar collapsed. Before = unpatched
`origin/main` @ 69107dc; after = this branch. Same seeded state, same
build pipeline (`build:e2e` between checkouts).

| theme | before (ghost sidebar over the rail) | after (rail clean: A /
B / + visible) |
|---|---|---|
| vesper |
![before-vesper](https://raw.githubusercontent.com/block/buzz/3f98c576e062e51d976940725d84b4e0be7fd53c/pr-5947--before-vesper.png)
|
![after-vesper](https://raw.githubusercontent.com/block/buzz/3f98c576e062e51d976940725d84b4e0be7fd53c/pr-5947--after-vesper.png)
|
| buzz |
![before-buzz](https://raw.githubusercontent.com/block/buzz/3f98c576e062e51d976940725d84b4e0be7fd53c/pr-5947--before-buzz.png)
|
![after-buzz](https://raw.githubusercontent.com/block/buzz/3f98c576e062e51d976940725d84b4e0be7fd53c/pr-5947--after-buzz.png)
|
| buzz-dark |
![before-buzz-dark](https://raw.githubusercontent.com/block/buzz/3f98c576e062e51d976940725d84b4e0be7fd53c/pr-5947--before-buzz-dark.png)
|
![after-buzz-dark](https://raw.githubusercontent.com/block/buzz/3f98c576e062e51d976940725d84b4e0be7fd53c/pr-5947--after-buzz-dark.png)
|

Before shots: ghost `⌘K` search chip + blue active-item pill painted
over the rail column; on vesper the opaque panel hides the rail buttons
entirely. After: the rail's community buttons (A, B) and `+` are visible
and clickable in all three themes.

Reported by Thomas P in #buzz-bugs:
buzz://message?channel=e62570dd-33ad-42c5-b92b-75f2689f9694&id=9ea401ca1d009f555ca4324e136f8d8d8156db2f8afa3ff89fd038d2c16260f7

cc @klopez4212 — this touches the layout your block#4281/block#5478 work shaped;
please confirm it doesn't defeat the huddle drawer or glass intentions.
The change deliberately hides only the *offcanvas-collapsed* container,
nothing in the expanded path.

## Test plan

- [x] New Playwright regression spec `sidebar-offcanvas-rail.spec.ts`
(buzz / buzz-dark / vesper): collapsed sidebar must be `visibility:
hidden` + `pointer-events: none`, community rail stays visible and
interactive. **Fails on unpatched build** (verified), passes with the
fix.
- [x] Full desktop unit suite: 4,954 pass / 0 fail
- [x] `pnpm typecheck`, `pnpm check` (biome + file-size ratchet +
px-text + pubkey-truncation) green
- [x] Before/after screenshots above captured via the e2e harness on
both builds

Signed-off-by: Thomas Petersen <thomasp@squareup.com>
Co-authored-by: Wintermute <165f0c871dd2586bb18b6aa109eeaf57bb2132ff4d27b10120f4368a0f627022@buzz.block.builderlab.xyz>
…k#5116)

**Category:** new-feature
**User Impact:** Mobile users must confirm with Face ID, biometrics, or
their device passcode before sending their Buzz identity to Desktop.

**Problem:** A signed-in phone could send its full identity, including
the `nsec`, to a desktop without fresh local verification.

**Solution:** Require OS device authentication before opening the
identity-recovery scanner, retain that authorization only for the active
pairing session and short pairing window, and require fresh
authentication again if it expires before the identity payload is sent.
Normal app opening, identity import, and community removal remain
unchanged.

## Screencasts

| Enable Face ID | Use Face ID |
| --- | --- |
| ![Enabling Face ID during identity
import](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5116/enable-face-id.gif)
| ![Using Face ID for identity
export](https://d24qwcpro867f5.cloudfront.net/repos/buzz/prs/5116/use-face-id.gif)
|

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

**Android and iOS integration**
- `mobile/android/app/build.gradle.kts` declares the AppCompat
dependency required by the biometric activity theme.
-
`mobile/android/app/src/main/kotlin/xyz/block/buzz/mobile/MainActivity.kt`
uses the activity type required by the system authentication prompt.
- `mobile/android/app/src/main/res/values/styles.xml` and
`mobile/android/app/src/main/res/values-night/styles.xml` use the
compatible launch theme.
- `mobile/ios/Podfile.lock` records the native local-authentication
dependency.
- `mobile/ios/Runner/Info.plist` explains why Buzz requests Face ID
access.

**Identity policy and pairing flow**
- `mobile/lib/shared/security/sensitive_action_authorizer.dart` wraps OS
authentication and maps platform errors to stable app-level outcomes.
- `mobile/lib/shared/community/community.dart` and
`mobile/lib/shared/community/community_storage.dart` persist the
sensitive-action policy.
- `mobile/lib/features/invites/invite_join_provider.dart` assigns the
explicit policy for invite-created communities.
- `mobile/lib/features/pairing/pairing_provider.dart` gates export,
binds grants to the active community/session, reauthenticates expired
grants, and clears grants on every terminal path.
- `mobile/lib/features/pairing/pairing_page.dart` lets users choose
biometric protection while importing an identity.
- `mobile/lib/features/settings/settings_page.dart` wires pairing into
settings.
- `mobile/lib/features/settings/settings_page/connection_section.dart`
authenticates before opening export recovery and bounds the
foreground-resume wait.
- `mobile/pubspec.yaml` and `mobile/pubspec.lock` add and lock
`local_auth`.

**Coverage**
- `mobile/test/shared/security/sensitive_action_authorizer_test.dart`
covers native result mapping, unsupported devices, and single-flight
behavior.
- `mobile/test/shared/community/community_test.dart` and
`mobile/test/shared/community/community_storage_test.dart` cover policy
defaults and persistence.
- `mobile/test/features/invites/invite_join_provider_test.dart` covers
the invite policy.
- `mobile/test/features/pairing/pairing_page_test.dart` covers import
protection controls.
- `mobile/test/features/pairing/pairing_provider_test.dart` covers
export/import authorization, stale/reset/concurrent guards, malformed
payload cleanup, and no-export failure paths.
- `mobile/test/features/settings/connection_section_test.dart` covers
the tap gate, lifecycle resume, and timeout behavior.

</details>

## Reproduction steps

1. Pair an identity into the mobile app.
2. Open Settings and choose “Send identity to desktop.”
3. Verify Face ID, biometrics, or the device passcode is required before
the recovery scanner opens.
4. Cancel device authentication and verify the scanner does not open and
no identity transfer begins.
5. Authenticate, scan a Desktop recovery code, confirm the SAS, and
verify the identity transfer completes.

## Validation

At `be5620f5f10aa6cc16e86a4f01f102f3d9aeef9b`:
- `cd mobile && ../bin/flutter analyze` — no issues
- `cd mobile && ../bin/flutter test` — 1,368 tests passed
- `cd mobile/android && JAVA_HOME=$(/usr/libexec/java_home -v 21)
./gradlew app:assembleDebug` — debug APK assembled successfully

---------

Signed-off-by: Taylor Ho <taylorkmho@gmail.com>
## Summary

- allow agents to build and run Flutter when it provides relevant
implementation or validation evidence
- keep mobile iteration fast by reusing simulators, incremental builds,
and configured staging or production communities
- correct stale CLI, E2E, CI, worktree formatting, and mobile launch
guidance
- point community singleton reset guidance at the canonical
implementation instead of duplicating a drifting inventory

## Validation

- `git diff --check origin/main..HEAD`
- `cargo run -q -p buzz-cli -- --format compact messages thread --help`
- `cargo run -q -p buzz-cli -- --format compact messages search --help`
- `just desktop-tauri-fmt-check` from the worktree
- pre-commit: mobile Dart formatting and `flutter analyze`
- pre-push: branch-skew check and full mobile test suite (1,465 tests)

Signed-off-by: Wes <wesbillman@users.noreply.github.com>
Co-authored-by: Carl <c7ebe626f000404285d3686e1dc74cc07cc60a9754a150041ba132e14bd3e2ec@buzz.block.builderlab.xyz>
Signed-off-by: Dekan Brown <dekanbro@gmail.com>

# Conflicts:
#	desktop/src-tauri/src/lib.rs
@dekanbro
dekanbro merged commit 3e648a7 into main Aug 17, 2026
7 of 9 checks passed
@dekanbro
dekanbro deleted the chore/sync-upstream-2026-08-17 branch August 17, 2026 14:50
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