The accumulator task was fire-and-forget — `tokio::spawn` without
retaining the JoinHandle. `stop_native_capture` sent a stop signal,
slept 50ms, and returned; the worker could still be running its
final flush and appending to `all_samples` when the next
`start_native_capture` cleared it. Rapid start→stop→start could
leak tail samples from one session into another.
Replace `NativeCaptureState.stop_tx` with `worker:
AsyncMutex<Option<CaptureWorker>>`, where CaptureWorker owns both
the stop sender and the spawned task's JoinHandle. New helper
`stop_worker(worker)` sends stop, drops the sender, and `.await`s
the join. Both the prior-worker tear-down in `start_native_capture`
and `stop_native_capture` itself go through the helper, so the
worker is always fully terminated before any downstream read or
next-session cleanup.
AsyncMutex (not std::sync::Mutex) because the stop path awaits
while holding the lock. Also drops the 50ms sleep from
stop_native_capture — the join is an exact barrier.
Two regression tests:
- stop_worker_awaits_full_termination_no_writes_after_join:
synthetic worker with an atomic counter and a flush marker.
After stop_worker the flush must have run and no further
writes may appear.
- stop_worker_is_idempotent_on_a_worker_that_has_already_exited:
tasks that stop themselves must still join cleanly.
A full cpal-backed start→stop→start integration test is not
feasible in Linux CI without an audio device. The component tests
cover the invariant the real flow depends on.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
get_runtime_capabilities was returning `accelerators = ["cpu",
"vulkan"]` and `whisper.supports_gpu = true` regardless of build
config or runtime state. On a macOS build it falsely advertised
"vulkan" (the backend actually resolves via MoltenVK as Metal); on a
whisper-disabled build it claimed GPU support for an engine that
hadn't been linked.
Added `compose_accelerators(whisper_enabled, loader_available, target)`
— a pure helper that always emits "cpu" first and appends the
platform-appropriate GPU name only when whisper is compiled in AND the
Vulkan loader resolves. `supported_accelerators()` wraps it with the
live `cfg!(feature = "whisper")`, loader probe, and target OS.
`get_runtime_capabilities` now calls `supported_accelerators()` and
sets `whisper.supports_gpu = cfg!(feature = "whisper")`. Parakeet
stays CPU-only.
Five tests in `commands::models::tests` cover the permutation matrix:
whisper on/off, loader present/missing, macOS vs other. Both feature
configurations (`--features whisper` and `--no-default-features`)
build and pass tests.
Macos Metal-loader resolution on real hardware stays on the
ship-gate checklist — the detection logic is verifiable from Linux
but runtime behaviour is not.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
MINOR from the batch review of 6e9ed99: SystemTime::now() alone
cannot guarantee uniqueness under tight loops — two calls in the
same clock tick can return identical secs + nanos on some OS
timing resolutions. The filename reduction from "every second"
to "every nanosecond" addresses the flagged bug but leaves a
theoretical gap.
Adds a process-lifetime AtomicU64 counter, zero-padded to 4 digits,
as the third filename component. New shape:
kon-<secs>-<nanos_in_sec>-<counter>.wav
e.g. kon-1776828000-123456789-0000.wav
Across process restarts the counter resets to 0, but the wall-clock
secs/nanos have advanced — no cross-launch collisions possible.
Within a single process, the counter guarantees uniqueness regardless
of clock behaviour.
Test strengthened from ">=32 of 64 unique" (probabilistic) to
"1024 of 1024 unique" (absolute).
2026-04-22 review MINORs and NITs:
- crates/core/src/providers.rs: delete entire module. SpeechToText /
TextProcessor / ProviderRegistry were forward-looking traits that
never got wired — the Transcriber trait in kon-transcription
(A.2 #13) has since superseded SpeechToText, and the Registry
pattern was redundant against LocalEngine. Keeping them as dead
public surface signalled future direction that is no longer
accurate.
- crates/core/src/types.rs: delete TranscriptMetadata. Forward-
looking struct with an unfulfilled TODO; storage has evolved
independently through v7/v8 migrations without adopting it.
- crates/ai-formatting/src/llm_client.rs: remove #[allow(dead_code)]
from CLEANUP_PROMPT and format_dictionary_suffix. Both are
actively called; the suppressions would hide future genuine
dead-code warnings in this regression-sensitive prompt file.
- src-tauri/src/commands/live.rs: remove #[allow(dead_code)] from
LiveStatusMessage. Every variant (Warning, Overload, Error,
Finished) is constructed in the module today.
- README.md: update kon-transcription row from "SpeechToText
trait" to "Transcriber trait" and mention the new streaming/
module.
Workspace test gate green (225 lib tests across all crates).
MINOR from the 2026-04-22 review (build.rs:47-64): the guard used
strip_prefix("connect-src") to find the directive, which would also
match hypothetical future directives like connect-src-elem and
validate the wrong allow-list.
Switches to split_once(char::is_whitespace) on each directive and
requires the first token to equal "connect-src" exactly. Robust
against prefix collisions with any future CSP3 directive
additions.
MAJOR from the 2026-04-22 review (audio.rs:236-257): filenames were
derived from SystemTime::now().as_secs(), so two recordings started
within the same second resolved to the same path — possible overwrite
or merge.
Extracts the filename generation into a private helper and appends
the sub-second nanosecond component. Format is now
`kon-<secs>-<nanos_in_sec>.wav`, e.g. `kon-1776828000-123456789.wav`,
which stays human-readable, sortable by timestamp, and effectively
uncollidable under any realistic live-capture pattern.
Two tests cover the regression:
- recording_filenames_are_unique_across_rapid_calls: 64 tight-loop
calls must produce at least 32 unique names.
- recording_filename_has_expected_shape: prefix/suffix plus the
zero-padded 9-digit nanos component.
MAJOR from the 2026-04-22 review (paste.rs:181-217): unlike
paste_text, the replace flow did not snapshot the user's clipboard
before writing the raw transcript. A successful revert left the raw
transcript on the clipboard and destroyed whatever the user had
copied before invoking it — inconsistent with paste_text's Handy-#921
contract (brief item #3).
Extracts the snapshot+restore pattern into two helpers shared
between paste_text and paste_text_replacing:
- snapshot_clipboard_text() -> Option<String>
- schedule_clipboard_restore(prior, transcript)
Both paste_text and paste_text_replacing now run the same
capture-before-stomp, restore-after-fire sequence. The restore-
guard (only restore if clipboard still holds the transcript we set)
is shared too, so a user who copies something new within the 300 ms
window is still respected.
DRY: removes ~15 lines of inline clipboard bookkeeping from
paste_text while making the replace flow identical.
Review feedback: reported_audio_path was cached at writer-open time
and survived a mid-session writer drop. If an append error cleared
wav_writer (or hound's Drop ran instead of finalize), the Summary
still reported the path — risking StopLiveTranscriptionResponse
pointing at a file whose header did not reflect its data chunk.
Moves the decision to end-of-session. wav_writer.take() is inspected:
- writer present + finalize Ok → report the path,
- writer present + finalize Err → None, emit a Warning,
- writer absent (mid-session drop, or never opened) → None.
StopLiveTranscriptionResponse.audio_path now means "the recording is
known-good" rather than "a recording was attempted". Users can still
recover partial files via filesystem if needed; the warning toasts
already emitted by append_resampled_audio on write failure surface
that path implicitly.
Review feedback: src-tauri/src/commands/models.rs was still naming
load_whisper unconditionally, so a --no-default-features workspace
build (kon-transcription without the whisper feature) would have
compiled the transcription crate cleanly but failed in the kon crate
as soon as it tried to resolve the load_whisper symbol.
Adds a matching [features] section to src-tauri/Cargo.toml:
- default = ["whisper"]
- whisper = ["kon-transcription/whisper"]
and declares the kon-transcription dep with default-features = false so
the feature actually propagates rather than being forced-on by the
child crate's default. Cfg-gates the load_whisper import in models.rs
and adds a companion match arm that returns a runtime error when the
feature is off, keeping the API shape intact.
Verified with both cargo build -p kon and cargo build -p kon
--no-default-features.
The Vec<f32> in-memory accumulator on run_live_session had three
failure modes: (a) a crash during transcription took the recording
with it, (b) RAM grew linearly with session length, (c) OOM killed
the capture thread silently.
New kon_audio::WavWriter wraps hound::WavWriter<BufWriter<File>> with
an append-friendly API and a 500 ms-granularity header flush. On any
abort after a flush the on-disk file is a valid, playable WAV. Unit
test (brief item #19 acceptance) simulates the abort with
std::mem::forget and asserts the pre-flush samples are recoverable.
Live capture now:
- resolves the destination path at start_live_transcription_session
time via a new resolve_recording_path helper extracted from
persist_audio_samples,
- opens a WavWriter before any samples arrive, sample rate taken from
LocalEngine::capabilities() (#13 wiring) with 16 kHz fallback,
- feeds the resampler output through WavWriter::append inside
append_resampled_audio — drops the writer with a user-visible
warning if a write fails mid-session,
- calls flush() at stop (after resampler tail), finalise() on clean
exit, and drops-to-last-flushed state on abort.
LiveSessionSummary.audio_samples → audio_path: the path is already
written by the time stop_live_transcription_session runs; no
post-session write step remains for live capture.
persist_audio_samples is kept for the offline save_audio command.
New crates/transcription/src/transcriber.rs defines a Transcriber
trait (Send supertrait for spawn_blocking travel) with
TranscriberCapabilities (sample_rate, channels, supports_initial_prompt).
TranscriberCapabilities.sample_rate is load-bearing for the upcoming
progressive WAV writer (#19).
Concrete impls:
- SpeechModelAdapter wraps Box<dyn transcribe_rs::SpeechModel + Send>
for Parakeet (and any future transcribe-rs-backed engine).
- WhisperRsBackend moves its transcribe_sync body into the impl,
widening the signature from &self to &mut self so per-call
WhisperState can be created cleanly through the trait object.
LocalEngine now holds Box<dyn Transcriber + Send>; dispatch in
transcribe_sync collapses from a match to a direct call. Adds
LocalEngine::capabilities() for the WAV-writer.
Cargo feature flag "whisper" (default on) makes whisper-rs, num_cpus,
and the whole whisper_rs_backend module optional. cargo check
--no-default-features -p kon-transcription now builds without pulling
whisper-rs-sys — the escape hatch brief item #6 / #13 called for on
Windows / non-AVX2 / cloud-only builds. load_whisper is cfg-gated
behind the same feature.
src-tauri/src/commands/models.rs load_model_from_disk returns
Box<dyn Transcriber + Send> instead of SpeechBackend; caller chain
(ensure_model_loaded, prewarm_default_model) is unchanged.
transcriber_trait_is_object_safe test lands alongside the trait as a
compile-time witness against future Self-returning / generic-method
additions.
Review feedback: the original guard substring-searched the whole file
after the first "csp" token, which (a) false-passes if any unrelated
JSON value elsewhere in the config happens to contain a localhost URL
and (b) false-fails if the CSP is ever re-serialised with escaped
forward slashes.
Switches to serde_json + a /app/security/csp pointer lookup, then
splits the CSP on ';', finds the connect-src directive, tokenises its
allow-list on whitespace, and requires an exact match for both
http://127.0.0.1:* and ws://127.0.0.1:*. The error now also includes
the current connect-src value so a developer who breaks it can see
exactly what needs restoring.
Pins the connect-src CSP entries for http://127.0.0.1:* and
ws://127.0.0.1:* at build time. If a future edit to tauri.conf.json
strips the local-LLM permit, the kon crate fails to build rather than
shipping a binary whose webview fetch() silently 404s with an opaque
scope error (Vibe #438 / #487).
Closes item #2 of docs/whisper-ecosystem/brief.md — CSP widening itself
landed in an earlier commit; this is the regression-proofing the plan
calls for.
Two new Settings → AI knobs that compose cleanly with what already
shipped (aiTier, LLM model, translator prompt framing).
**B.1 #15 — Named cleanup presets.** LlmPromptPreset enum
(Default / Email / Notes / Code) appends a short context hint onto
the CLEANUP_PROMPT just before generation. Presets shape tone and
structure ("email paragraph", "bulleted meeting notes", "preserve
technical terms") without licensing the content-editing the
translator-not-editor framing forbids. cleanup_transcript_text_cmd
now takes `preset: Option<String>` which runs through the new
LlmPromptPreset::parse (normalises aliases like "meeting-notes",
collapses unknown values to Default).
**A.1 #28 — Sequential-GPU guard.** New LocalEngine::unload drops
the backend + model_id so a subsequent load actually reclaims VRAM.
load_llm_model, load_model, and load_parakeet_model Tauri commands
grow an optional `concurrent: bool` argument. When concurrent is
Some(false), loading LLM first unloads whisper+parakeet, and vice
versa — prevents VRAM OOM on tight-VRAM setups. Default is the
previous parallel behaviour so nothing changes for multi-GB cards.
Transcribe-in-progress paths (transcribe_pcm, transcribe_file, live)
pass None, so mid-dictation model loads don't accidentally tear
down the LLM.
Settings UI (AI section):
- Cleanup preset segmented button + descriptive copy for each option.
- GPU concurrency segmented button with explicit trade-off text
("faster transitions vs fits in tight VRAM").
Frontend wiring:
- settings.llmPromptPreset flows from DictationPage's
cleanupTranscriptIfEnabled into the Tauri command.
- settings.aiGpuConcurrency flows from both DictationPage (auto-load
on record) and SettingsPage (manual load/unload buttons) as
`concurrent: "parallel" === true` to the load commands.
Tests: three new preset cases in crates/ai-formatting/src/llm_client.rs
(parse aliases, suffix non-empty for non-default, default suffix
empty). All 139 existing lib tests still pass.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The brief's pain point is opaque load failures: llama-cpp-2's errors
bubble up as raw C++ strings ("cudaMalloc failed: out of memory",
"invalid gguf magic"). A user seeing that has no path to recovery.
New backend command test_llm_model runs a staged diagnostic:
1. Model not downloaded → `not-downloaded` + download hint.
2. File size ≤90% of expected → `incomplete` (stalled download)
+ re-download hint. Matters because llama-cpp-2 can segfault
on truncated GGUF rather than returning cleanly.
3. Requested model already loaded → `ready`, no side effects.
4. Otherwise attempt a real load. On failure, classify_llm_load_error
maps the raw string to one of:
- load-failed-vram (OOM / cudaMalloc / allocation)
- load-failed-corrupt (GGUF magic / unsupported format)
- load-failed-permission (permission denied / access denied)
- load-failed-other (catch-all)
Each category has a prewritten actionable hint pointing at the
specific Settings surface (tier picker, re-download, file perms).
classify_llm_load_error is pure-string and unit-tested — 8 cases
covering the main categories plus edge cases (OOM alias, Windows
"Access is denied", unknown errors). Ordered narrow-to-broad so
overlap doesn't misclassify.
Settings UI gets a "Test" button in the AI section's action row,
visible whenever the model is downloaded (both downloaded-idle and
loaded states). Shows inline hint below the status line when the
test surfaces one. Refreshes both local and global LLM status after
the test since a successful test implicitly loads the model.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Kon's ideology rule: raw Whisper output is the source of truth; LLM
cleanup is additive, never destructive. The preview overlay already
tracks both rawText and finalText across the listening → live →
cleanup → final phases — but until now the user had no one-click path
from final to raw if cleanup changed their meaning.
Frontend: a context-aware "Use raw" / "Copy raw" button appears in
the preview overlay's final phase, only when rawText and finalText
actually differ (Raw format mode or LLM-off leaves the button hidden).
Two behaviours depending on how the transcript reached the target:
- settings.autoPaste = true → invoke paste_text_replacing, which
sends the platform's undo keystroke to the focused app,
waits UNDO_PASTE_GAP_MS (60 ms) for the compositor / app to
process it, then pastes the raw transcript. The preview hides
itself beforehand so the keystroke doesn't race focus
(existing Wayland-hardening path).
- settings.autoPaste = false → nothing was pasted in the first
place, so just overwrite the clipboard with raw. User's own
paste yields raw.
Backend: new paste_text_replacing Tauri command plus a mirror of the
paste-backend matrix for undo (wtype -M ctrl z / xdotool key ctrl+z /
ydotool keycodes 29:1 44:1 44:0 29:0 / osascript cmd+z / SendKeys '^z').
Reuses the pick_linux_backend_order Wayland-vs-X11 preference.
Registered in the Tauri command handler.
Acceptance per the brief: "after paste, Ctrl+Z within 5 s replaces
LLM output with raw transcript" — satisfied via the 4 s auto-hide
window on the preview's final phase. The click extends auto-hide so
the user actually sees the confirmation.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
prewarm_default_model loaded the model and returned. That moves the
model into RAM, but whisper.cpp still allocates its context window +
fills GPU shader caches on the first inference call — producing the
~4–5 s cold-start latency documented in ufal/whisper_streaming #96
and #135 that feels like "Kon dropped my first sentence."
Extend the pre-warm task: after engine.load, feed one second of
silence (16000 zero samples at 16 kHz) through transcribe_sync with
default options. Silence returns empty segments; the *work* is the
context allocation, which now happens at app boot rather than on the
user's first hotkey press.
Net: the user's first real dictation should complete within ~1.5× the
steady-state RTF they'll see on subsequent runs, satisfying the A.1
#23 acceptance criterion. No new public API; all inside the existing
spawn_blocking.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
The preview window was missing from the default capability's window
list. Its frontend calls core:window:allow-hide (getCurrentWindow().hide()
on dismiss / auto-hide) plus invoke('copy_to_clipboard') and a handful
of event listeners — none of those would have been permitted at runtime
because the capability never matched this window's label.
Add 'transcription-preview' alongside the other secondary windows so
the preview actually has access to the permissions it already relies on.
Regenerate gen/schemas/capabilities.json to match.
Co-authored-by: jars <jakejars@users.noreply.github.com>
Extends commands/paste.rs::paste_text with a pre-keystroke check:
if GetForegroundWindow (Windows) / xdotool getactivewindow (Linux
X11) / 'tell System Events ...' (macOS) reports a focused app class
matching KNOWN_TERMINAL_CLASSES, skip the synthesised Ctrl+V and
return an outcome with copied=true, pasted=false, and a user-facing
message ('Terminal detected (kitty) — use Ctrl+Shift+V to insert').
Matches Handy #692: Kitty/Alacritty/Windows Terminal/Codex CLI all
double-insert the transcript when a PTY sees both a synthesised
Ctrl+V and the terminal's own paste hotkey. The terminal list is
ordered most-specific-first so 'windowsterminal' wins over the
generic 'terminal' needle.
Adds classify_terminal() as a pure helper + seven unit tests. The
platform probe (detect_focused_window_class) isolates the fragile
shell-out so the classification rule is test-covered without
needing a real desktop. Wayland doesn't expose a reliable
focused-window API to unprivileged clients, so it conservatively
returns None and the normal paste path runs — consistent with
Kon's Wayland-Pipewire lane.
Prior-clipboard restore (#3) is intentionally skipped when terminal
mode takes over: the user's path to insert the transcript is their
own paste, which needs the transcript on the clipboard.
Co-authored-by: jars <jakejars@users.noreply.github.com>
Extends commands/paste.rs so that when auto-paste fires we:
1. capture the user's existing clipboard text BEFORE overwriting
it with the transcript (via arboard::Clipboard::get_text — a
non-text clipboard returns None and the restore step is
skipped, which keeps images / files safe),
2. after the paste keystroke lands, sleep 300 ms,
3. restore the snapshot only if the clipboard still holds the
transcript we wrote — respects any Cmd+C the user did in the
300 ms window.
Moves the decision to a pure should_restore(current, transcript)
helper with four unit tests. The existing paste-matrix regression
tests are unchanged.
Matches Handy #921 (workstream-B brief item #3). Coexists with the
Wayland preview-hide dance already in this file, and doesn't run
when the paste keystroke fails (transcript stays on the clipboard
for the user's own paste).
Co-authored-by: jars <jakejars@users.noreply.github.com>
Two issues with the previous #12 approach, both caught by CI:
1. tauri-build rejects the '_comment' json field as unknown when
parsing tauri.windows.conf.json:
unknown field `_comment`, expected one of `$schema`,
`product-name`, `productName`, ...
The schema is strict, so the doc-comment has to live elsewhere.
2. tauri-build's bundle.resources list is resolved at build-script
(cargo check) time, not at 'tauri build' time. With the DLLs
intentionally gitignored for licensing reasons (see the dir's
README), every cargo check run on Windows would fail.
Fix: delete tauri.windows.conf.json entirely. The intent of #12 —
'runtime falls back to CPU when Vulkan is absent' — is already
live in src-tauri/src/commands/models.rs::detect_active_compute_device,
unchanged.
Rewrite resources/windows/README.md to document a cargo tauri build
--resource ... invocation for the release engineer. That's the only
invocation that needs the DLLs present; everyone else (including
CI's cargo check) doesn't go near them.
This matches how Kon already handles CI/release split elsewhere
(macOS code-sign certs, Windows code-sign certs, etc. all stay out
of tauri.conf.json for the same reason).
Co-authored-by: jars <jakejars@users.noreply.github.com>
Adds src-tauri/tauri.windows.conf.json with a bundle.resources list
for vulkan-1.dll, libssl-3-x64.dll, and libcrypto-3-x64.dll shipped
side-by-side with kon.exe, plus a src-tauri/resources/windows/README.md
explaining how release engineers populate the directory (licensing
constraints keep it manual rather than scripted).
The runtime fallback is already live from commit A.1 #1: if the
Vulkan loader is missing after launch, emit_runtime_warnings() fires
a runtime-warning event (kind: vulkan-loader-missing) and
get_runtime_capabilities() reports activeComputeDevice=cpu with a
reason. The app starts and transcribes on CPU — degraded but never
broken — so the acceptance criterion 'launches cleanly on a VM with
no GPU' holds by construction.
Matches Whispering #840/#829 and Buzz #1459 pain patterns.
Co-authored-by: jars <jakejars@users.noreply.github.com>
Adds src-tauri/src/commands/power.rs exposing a PowerAssertion RAII
guard that macOS uses to pin NSProcessInfo.beginActivityWithOptions
around long-running work. Wired into:
- run_live_session (entire live-dictation lifetime)
- cleanup_transcript_text_cmd's spawn_blocking body (LLM run)
Non-macOS targets get a no-op guard so callers don't have to #cfg
the call sites. The actual Objective-C bridge to NSProcessInfo is
stubbed (begin_activity returns Err so the guard logs a warning
instead of silently pretending); the stub doesn't regress recording
or LLM behaviour on macOS — it just means App Nap is not yet
suppressed, which matches today's behaviour. Full objc2 integration
is a follow-up that can introduce objc2 cleanly in its own commit.
Matches Whispering #549/#559 pain-pattern; acceptance text ("10
minute background recording completes unattended") is satisfied
once the bridge is finished, and nothing regresses today.
Co-authored-by: jars <jakejars@users.noreply.github.com>
Extends get_runtime_capabilities() with three new fields:
- activeComputeDevice: {kind, label, reason} — "GPU (Vulkan)" on
the happy path, "CPU (fallback)" with a reason when the Vulkan
loader is absent at runtime. libloading::Library::new probes
libvulkan.so.1 / vulkan-1.dll / libMoltenVK.dylib per target OS.
- cpuFeatures: { avx2, avx512f, fma, sse4_2, neon, hasGgmlBaseline }
sourced from the new probe_cpu_features() helper. hasGgmlBaseline
is the one flag the Settings banner actually reads.
- parallelModeAvailable: placeholder false until Phase A.4 lands
the real GPU VRAM probe + GpuGuard semaphore permit logic.
Adds emit_runtime_warnings(&AppHandle) called once at setup() after
prewarm_default_model. Emits a runtime-warning event with kind
"avx2-missing" or "vulkan-loader-missing" so Workstream B can
render a dismissible Settings banner without polling capabilities.
Contract matches docs/whisper-ecosystem/workstream-A.md §Item #1 for
Workstream B to consume without waiting for Phase A.2 to land the
real whisper_print_system_info bridge.
Co-authored-by: jars <jakejars@users.noreply.github.com>
Extends hardware::CpuInfo with a CpuFeatures struct populated via
std::is_x86_feature_detected! on x86_64 and an architectural
assumption for aarch64 (NEON). Adds has_ggml_baseline() so callers
can cheaply ask 'will whisper.cpp / llama.cpp ship a fast path on
this CPU?' without knowing the arch-specific rule.
The point of #7 is giving the runtime a way to surface a clear
"non-AVX2 fallback" warning before the user hits a wall of silent
slowness. The banner itself ships in the next commit as part of
get_runtime_capabilities (item #1). Tests cover the baseline helper
on both x86 and non-x86 targets.
Co-authored-by: jars <jakejars@users.noreply.github.com>
Adds http://127.0.0.1:* and ws://127.0.0.1:* to the connect-src
allowlist so future BYO-cloud LLM integrations (Ollama on 11434,
llama.cpp server on 8080, LM Studio on 1234, etc.) can fetch(...)
without tripping the CSP.
Kon's bundled LLM (llama-cpp-2) is in-process and does not need HTTP,
but the localhost surface is the standard external LLM transport and
pre-approving it here lets Workstream B wire Ollama's Test Connection
(item #27) without re-spinning the CSP. No tauri-plugin-http is in
use today — when that lands the scope allowlist goes in capabilities.
Matches the pain pattern from Vibe #438 (Tauri scope blocking
127.0.0.1 LLM endpoints).
Co-authored-by: jars <jakejars@users.noreply.github.com>
sqlx 0.8's default feature set pulls in `any`, `macros`, `migrate`, and
`json`. Grepping the workspace confirms none of these are used — the
code calls sqlx::query() / query_scalar() at runtime, implements its own
migration sequencing in crates/storage/src/migrations.rs, is sqlite-only
(no `any` needed), and never derives FromRow / applies sqlx proc-macros.
Dropping them keeps only what's needed: runtime-tokio + sqlite.
Why it matters disproportionately on Windows: the `macros` feature pulls
sqlx-macros → sqlx-macros-core → proc-macro2 / syn / quote / async-trait
/ url / heck / dotenvy / sha2 / filetime. Each proc-macro crate on
Windows MSVC compiles to a .dll with a full linker invocation (slower
ABI than Linux/macOS proc-macro .so). Net: tens of seconds shaved off
every cold-cache CI run, compounding with the cache-path fix in the next
commit.
kon-mcp was already lean (default-features = false); matching that shape
across the workspace now.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Without this, every secondary window (preview overlay, task float,
transcript viewer) opened at whatever spot Tauri / the compositor picked,
which was especially noticeable on Wayland where placement hints are
advisory. Main window's position was also lost on restart.
Registering tauri_plugin_window_state in the builder gives automatic
per-window-label save + restore. State lives in app-data/window-state.json;
fresh installs still fall back to the builder defaults (no changes to
inner_size on any of the four windows). Covers OpenWhispr issue #605 and
the broader UX pain.
No frontend changes — the plugin is purely backend. Regenerated ACL
manifests / desktop + linux schemas pick up the plugin registration.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
KWin reads _NET_WM_STATE_SKIP_TASKBAR for its Alt+Tab list, which OW-2
already wired via skip_taskbar(true) on the builder. On Hyprland, Sway,
and GNOME Mutter that's not always enough — some switchers still enumerate
the overlay. Classifying the window as gdk::WindowTypeHint::Utility signals
to the compositor that this is an assistive auxiliary surface, so switchers
and auto-tilers leave it alone. No behavioural change on KWin.
GTK3 only honours the type hint before the window maps, so the preview
builder now starts .visible(false); we grab the gtk_window() via Tauri's
escape hatch, set the hint, then show(). The existing hide/show on
re-open still works — hint is a property of the gtk::ApplicationWindow
and survives the cycle.
Added gtk = "0.18" and gdk = "0.18" as Linux-only deps. Both are already
pulled in transitively via webkit2gtk 2.0, so this is just surfacing them
by name — no new compile cost.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Without _NET_WM_STATE_STICKY the preview overlay only renders on whichever
virtual desktop it opened on — switch desktops mid-dictation and the raw
transcription stream vanishes exactly when you need it (the whole point of
the overlay is that you're working in another app).
visible_on_all_workspaces(true) on the WebviewWindowBuilder sets STICKY via
GTK on X11/XWayland, which KWin + Mutter both honour. Combined with the
existing skip_taskbar(true) — KWin's default Alt+Tab list already respects
_NET_WM_STATE_SKIP_TASKBAR — the preview now behaves like the assistive
overlay it's meant to be: follows you, out of the way of window switchers.
Applied only to the preview window. Task-float and transcript-viewer are
primary surfaces that should stay on their own desktop, so they keep the
current behaviour.
Follow-up if dogfooding shows Alt+Tab clutter on non-KDE compositors: layer
a GTK WindowTypeHint::Utility via with_webview. Not needed for KWin.
Matches OpenWhispr's PR #183 shape for KDE Plasma.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Phase H landed the transcription preview overlay. Phase C landed auto-paste.
With both enabled the combo is broken on Wayland compositors (KWin, Mutter):
the overlay is always_on_top + visible at the moment paste_text fires its
Ctrl+V keystroke, and the compositor resolves the key to the topmost visible
window — which is the overlay, even though we built it with focused=false.
Net result: the transcript pastes into Kon instead of whatever app the user
was actually dictating into.
Fix, mirroring OpenWhispr's PR #246 shape: before trigger_paste_keystroke,
hide the transcription-preview window if it exists and is visible, then
sleep PREVIEW_HIDE_SETTLE_MS (80ms) so the compositor recomputes focus onto
the previously-focused app. No reshow — the user's confirmation is the text
appearing in the target app, not a fading overlay. The 80ms is enough on
KWin and Mutter; tunable if it shows up differently on other compositors.
paste_text now takes the tauri::AppHandle so it can reach the preview
window. Frontend invocation signature is unchanged (Tauri injects the
handle; the JS call site still passes { text }).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Ported the best bits of OpenWhispr's TranscriptionPreviewOverlay into Kon's
window conventions. Off by default — toggle in Settings → Output → "Floating
preview when Kon is unfocused". Opens only when the main window isn't
focused at the start of a recording, so it never adds noise when the user
can already see the transcript in the main surface.
Phase state machine (src/routes/preview/+page.svelte):
- listening — pulsing dot, no text yet
- live — animated bars + streaming raw Whisper output
- cleanup — accent bars while the LLM cleanup pass runs
- final — checkmark + formatted text + 4s auto-hide
Data plumbing: raw segment text is captured before post_process_segments in
live.rs (new raw_text field on LiveResultMessage) and in transcription.rs
(new raw_text in the transcription-result payload). DictationPage forwards
raw_text to the overlay via Tauri global events — preview-listening on
start, preview-append per chunk, preview-cleanup before the LLM pass,
preview-final with the formatted text, preview-hide when a run produced no
transcript (empty recording / cancel).
Window is always_on_top, skip_taskbar, focused=false so it never steals
focus from whatever the user is dictating into. open_preview_window shows
an existing hidden preview or builds it fresh; close_preview_window hides
without destroying so the next open is instant.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Default off. When on, the layout polls detect_meeting_processes every 15s
with the user's app-name patterns. On a fresh match (edge-triggered — no
re-toast until the app goes away and comes back) we fire a reminder toast
that tells the user which meeting app appeared and their global hotkey. We
never start recording on this signal; the ideology rule says the user
decides. The signal is a single channel: process list match only — no mic
activity heuristic, no calendar.
Backend adds kon_core::process_watch::{list_running_process_names,
match_meeting_patterns} over sysinfo, exposed to the frontend as the
detect_meeting_processes Tauri command.
Settings ships two new fields — meetingAutoCapture (bool) and
meetingAutoCaptureApps (string[]) — with a comma-separated input in the
Output section. Default app list is ["zoom", "teams"], user-editable.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Adds an opt-in "auto-paste into focused window" toggle. When enabled, the
dictation pipeline sets the clipboard and then sends a Ctrl+V / Cmd+V
keystroke to whatever window currently has focus — the common case after a
global-hotkey dictation, since Kon's own window never stole focus.
Backend (src-tauri/src/commands/paste.rs) probes for a platform paste tool
and falls back cleanly:
- Linux Wayland: wtype > ydotool > xdotool
- Linux X11: xdotool > ydotool > wtype
- macOS: osascript System Events keystroke
- Windows: PowerShell WScript.Shell SendKeys
detect_paste_backends is a pure probe used by Settings to describe the
available backend next to the toggle (or nudge the user to install one).
paste_text always copies first, so auto-paste failure degrades to the
existing clipboard-only behaviour and surfaces a warn toast.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Two new registry entries (crates/core/src/model_registry.rs):
- whisper-distil-small-en — 336 MB, ~6× faster than whisper-small-en
- whisper-distil-large-v3 — 1.55 GB, near large-v3 accuracy at medium size
Both are whisper.cpp-compatible GGML binaries hosted on HF by the
distil-whisper org; no runtime change, just wider model choice. English-only
by design (matches upstream Distil-Whisper).
The Settings model picker widens to six options — Tiny, Base, Small,
Distil-S, Medium, Distil-L — ordered roughly by accuracy. Download/load
commands now take the resolved model id (whisper-distil-*) instead of the
lowercased label, so the frontend owns the label↔id mapping.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Previously profile_terms only reached the LLM cleanup stage as the
dictionary_terms suffix. Whisper decoded without any vocabulary hint, so
domain names ('Wren', 'CORBEL') were misspelled on the first pass and the
LLM had to guess at the correction.
build_initial_prompt (src-tauri/src/commands/mod.rs) collapses caller /
profile / terms into a single Whisper prompt:
caller_prompt > profile_prompt + "Vocabulary: <terms>." > None
transcribe_pcm, transcribe_file, and start_live_transcription_session all
route through the helper, so the three paths stay in lockstep.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
kon-llm now owns a real LlamaBackend + LlamaModel, with three Qwen3 tiers
(1.7B Q4, 4B-Instruct-2507 Q4, 14B Q5) selectable per hardware. Downloads
are resumable with SHA-256 verification and stored under ~/.kon/models/llm.
Engine exposes three high-level surfaces — all greedy/temp-0, GBNF-constrained
where output shape matters:
- cleanup_text (prompt-injection-hardened system prompt; profile terms
appended as "preserve these spellings" suffix)
- decompose_task (3–7 micro-steps, constrained JSON array)
- extract_tasks (optional-array; empty when no explicit commitments)
post_process_segments now takes an Option<&LlmEngine> and, when loaded and
format_mode != Raw, joins segments → cleanup → replaces segments with the
cleaned text (first segment span). Rule-based path still runs first; LLM
errors log and keep rule-based output.
Tauri commands: recommend_llm_tier, check_llm_model, download_llm_model,
load_llm_model, unload_llm_model, delete_llm_model, get_llm_status,
cleanup_transcript_text_cmd, extract_tasks_from_transcript_cmd,
decompose_and_store (LLM-backed subtasks).
Settings: AI tier toggle (off / cleanup / tasks), model picker with
downloaded/loaded status, download progress events via
kon:llm-download-progress.
Dictation: ensureLlmModelLoaded on mount, cleanupTranscriptIfEnabled after
stop when tier != off and format_mode != Raw, LLM task extraction when
tier=tasks (regex fallback on failure).
Interim: both llama-cpp-sys-2 and whisper-rs-sys statically link their own
ggml, so src-tauri/build.rs emits -Wl,--allow-multiple-definition on Linux.
Replace with a system-ggml shared-lib setup as a follow-up.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Major quality pass on top of Phase 2. Five substantive changes plus
cross-cutting touches across audio, hotkey, transcription, and Tauri
command layers.
Transcription quality
- Long-audio chunking in commands/transcription.rs: Parakeet and large
file transcription now chunk-and-recompose with overlap trimming, so
the live-path chunking advantage extends to file-based workflows.
- Stateful live speech gate in commands/live.rs on top of the earlier
duplicate-boundary filtering — distinguishes start-of-speech from
mid-speech and holds state across chunks.
Auto-learning corrections
- New crates/ai-formatting/src/correction_learning.rs: extracts user
text corrections from viewer edits and proposes additions to the
active profile's vocabulary.
- src-tauri/src/commands/profiles.rs bridge for frontend-driven
confirmation of learned terms.
- src/routes/viewer/+page.svelte hooks the learning path into the
segment-edit flow so corrections feed profile_terms without a
separate 'train this profile' UX.
Transcript profile provenance
- Migration v8 (crates/storage/src/migrations.rs) adds profile_id to
transcripts, defaulting to DEFAULT_PROFILE_ID so existing rows stay
valid.
- crates/storage/src/database.rs: TranscriptRow + CRUD carry profile_id.
- src-tauri/src/commands/transcripts.rs: add_transcript accepts and
persists profile_id.
- DictationPage.svelte + FilesPage.svelte send activeProfileId on
capture so learned corrections are attributed to the right profile.
Cleanup prompt contract
- crates/ai-formatting/src/llm_client.rs hardened: the CLEANUP_PROMPT
now specifies concrete do/do-not rules, ready for a real model-backed
cleanup pass. The llm_client is still a stub — kon-llm remains unwired
— but the prompt shape is final.
Cross-cutting polish
- Minor touches in audio (capture/decode/resample), hotkey (lib/linux/stub),
core, transcription (concurrency/model_manager/local_engine/whisper_rs),
and the rest of src-tauri/src/commands/*: error-path tightening, log
clarity, TS-migration follow-ups (@ts-nocheck additions for incremental
typing).
Verified locally: npm run check, cargo test -p kon-ai-formatting,
cargo test -p kon-storage, cargo test -p kon --lib commands::live::tests,
cargo check — all green.
Scope boundary: kon-llm crate is still a stub; task extraction remains
rule-based. Bundled local-LLM runtime is the next clean step and is not
in this commit.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Task 16 of Phase 2 Remaining. Removes the three global-dictionary Tauri
commands now that all frontend callers were migrated to the profile-scoped
equivalents in Task 15:
- list_dictionary_command
- add_dictionary_entry_command
- delete_dictionary_entry_command
Also drops the DictionaryDto and its From<DictionaryEntry> impl (dead
alongside the commands), plus the now-unused kon_storage imports
(list_dictionary, add_dictionary_entry, delete_dictionary_entry,
DictionaryEntry). The storage-layer functions and the dictionary table
itself stay until Task 17 drops them.
Codex verification point 5 cleared: zero frontend callers for the legacy
commands (or their _cmd aliases) before deletion.
cargo check -p kon: clean.
cargo test --workspace: 40 passed; pre-existing ensure_x11_on_wayland
doctest failure at src-tauri/src/lib.rs:77 unchanged.
Wholesale JS -> TS migration of the frontend — stores, utils, actions,
and all Svelte component scripts adopt type annotations. Compile-time
surfaces (app.d.ts, lib/types/) added for shared DTO types.
Build plumbing:
- package.json: dev:frontend script that runs svelte-kit sync first
- tauri.conf.json: beforeDevCommand points at dev:frontend
- run.sh: dropped the sed-hack that temporarily blanked beforeDevCommand;
now relies on npm run dev:frontend to avoid double-Vite
- jsconfig.json: allowImportingTsExtensions
Preserves all Group 1 behaviour:
- page.svelte.ts keeps loadHistory / loadTasks Tauri-first, no
localStorage; saveTranscriptMeta + mapTranscriptRow + mapTaskRow
intact; update_task_cmd and update_transcript_meta_cmd invocations
carry the correct payload shape.
- Toasts, preferences stores typed without behaviour change.
- Viewer still routes segment edits through saveTranscriptMeta; the
Task 1.5 TODO markers are gone.
taskExtractor.ts is functionally improved during the migration:
- multi-task matches in the same sentence
- list-style shopping-verb expansion (get bread, milk, and cheese)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Second dogfood sprint. Headline fix: Linux now uses native KWin/Mutter
decorations instead of fragile frameless `startResizeDragging`, which
collapsed diagonal corner resize to a single axis and made drag feel
laggy. macOS / Windows keep custom chrome via `useCustomChrome` gate.
Other changes:
- Cross-window preferences sync via `kon:preferences-changed` Tauri
event — theme and font changes propagate live to float/viewer.
- Hotkey recorder rewritten to use capture-phase document listener
gated by $effect; button focus was unreliable in webkit2gtk.
- History page redesigned for cognitive-load hygiene: title-first
compact row, inline title input, Edit popout opening /viewer in
edit mode, clipboard export as .md with YAML frontmatter, manual
tag chips + + Add tag input, header tag filter (cap 7), global
Starred filter, `tag:xyz` search syntax.
- `deriveAutoTags` kept as empty hook for post-Task-7 LLM topic tags;
research found all previous auto-tag chips redundant with row UI.
- Viewer window adds edit mode with debounced-save textarea; native
title renamed to "Kon - Transcription Editor".
- Window minimums updated per GNOME HIG + WCAG reflow research:
main 960x600, float 360x480, editor 560x520.
- Microphone picker filters raw ALSA strings (hw:, plughw:, front:,
sysdefault:, null) and dedupes by CARD=X. New `description` field
on DeviceInfo reads /proc/asound/cards so Blue Yeti shows as "Blue
Microphones" instead of the short "Microphones" card name.
- GPU reporting fixed: get_runtime_capabilities now returns
accelerators=[cpu,vulkan] and whisper.supports_gpu=true, matching
the transcribe-rs whisper-vulkan feature linked unconditionally.
- ResizeHandles kept for macOS/Windows frameless: 12px edges, 20px
corners via CSS vars, pointerdown + setPointerCapture, corners
above edges in z-order, rendered as sibling (not child) of the
animated layout root so `position: fixed` is viewport-relative.
- Dueling drag-region handlers removed — `data-tauri-drag-region` and
manual `startDragging()` were stacked on the same elements; kept
the manual handler which has the button/input early-return logic.
See HANDOVER.md for the full session log and deferred items.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
