VOICE: local transcription (Parakeet v2 → S1-mini by Superwhisper), background model download, inline mic morph #373

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opened 2026-09-28 18:44:50 +00:00 by kayg · 23 comments
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Build local voice transcription (decided in #304; research in docs/research/voice-transcription.md)

Owner decisions (2026-09-28), binding:

  • English only. Transcription runs automatically after a voice memo is saved. No live transcription. Local only: no cloud calls.
  • Pipeline: Parakeet TDT 0.6B v2 (sherpa-onnx INT8; CC-BY-4.0 attribution) → S1-mini by Superwhisper text cleanup. Cleaned text is the default, with a "Show raw" toggle. Settings → Voice: style / structure / context, defaults semi-formal / prose / general. Name it exactly "S1-mini by Superwhisper" in Settings and in NOTICE/credits. Do not bundle the weights in the release.
  • Model downloads are on by default and never block. Server start, deployment and the UI never wait for them. A background job downloads both models (pinned revision + SHA-256 check, resumable, bandwidth-friendly) and is visible in Settings → Admin → Jobs (#315, built in parallel by job jobs-page: register it in the shared background-job registry that job exposes, or the calternal-db job queue, which is where #315 reads from). Until the models are ready, memos save normally and show "Transcript pending (models downloading)".
  • Transcript destination follows the item: Event/Log entry, Task or Note (a transcript block under the memo link, with calternal block IDs).
  • Recording UI: the mic icon expands inline into the recording pill (width morph with the #236/#291 spring, like the tab bar): waveform/level, elapsed time, Stop/Keep. Reuse and refine https://sveltebits.xyz/micro/voice-pill with calternal tokens and reduced motion. The same recorder serves the composer and the #303 item preview.
  • Resource limits: sequential model loading, five-minute ASR chunks, one transcription at a time per instance (queue), named config caps for threads and memory; unload models after an idle timeout. Measure peak RSS and real-time factor on this host and on o2 (arm64), and record them in docs/perf/.

Done when: record a memo in the composer → it saves at once → the transcript appears in the Log entry within the measured time; a server restart mid-download resumes; gates green; adversarial round (huge audio, a malformed file, a 1-hour memo, 20 memos at once, another User's memo ID). Production-build screenshots of the recorder at 390/820/1440, light and dark.

## Build local voice transcription (decided in #304; research in docs/research/voice-transcription.md) Owner decisions (2026-09-28), binding: - English only. Transcription runs **automatically** after a voice memo is saved. No live transcription. **Local only**: no cloud calls. - Pipeline: **Parakeet TDT 0.6B v2** (sherpa-onnx INT8; CC-BY-4.0 attribution) → **S1-mini by Superwhisper** text cleanup. Cleaned text is the default, with a "Show raw" toggle. Settings → Voice: style / structure / context, defaults semi-formal / prose / general. Name it exactly "S1-mini by Superwhisper" in Settings and in NOTICE/credits. **Do not bundle the weights** in the release. - **Model downloads are on by default and never block.** Server start, deployment and the UI never wait for them. A background job downloads both models (pinned revision + SHA-256 check, resumable, bandwidth-friendly) and is visible in Settings → Admin → Jobs (#315, built in parallel by job `jobs-page`: register it in the shared background-job registry that job exposes, or the calternal-db job queue, which is where #315 reads from). Until the models are ready, memos save normally and show "Transcript pending (models downloading)". - Transcript destination follows the item: Event/Log entry, Task or Note (a transcript block under the memo link, with calternal block IDs). - Recording UI: the mic icon **expands inline** into the recording pill (width morph with the #236/#291 spring, like the tab bar): waveform/level, elapsed time, Stop/Keep. Reuse and refine https://sveltebits.xyz/micro/voice-pill with calternal tokens and reduced motion. The same recorder serves the composer and the #303 item preview. - Resource limits: sequential model loading, five-minute ASR chunks, one transcription at a time per instance (queue), named config caps for threads and memory; unload models after an idle timeout. Measure peak RSS and real-time factor on this host and on o2 (arm64), and record them in docs/perf/. Done when: record a memo in the composer → it saves at once → the transcript appears in the Log entry within the measured time; a server restart mid-download resumes; gates green; adversarial round (huge audio, a malformed file, a 1-hour memo, 20 memos at once, another User's memo ID). Production-build screenshots of the recorder at 390/820/1440, light and dark.
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Starting implementation on job/voice, based on dev at fba83527f2cccf2334934bb1fd0932be7c0e209b. I have read the repository contract, design, glossary, research, and issue #373. I am now checking the #304 owner discussion and the existing recorder/job/download architecture.

Starting implementation on `job/voice`, based on `dev` at `fba83527f2cccf2334934bb1fd0932be7c0e209b`. I have read the repository contract, design, glossary, research, and issue #373. I am now checking the #304 owner discussion and the existing recorder/job/download architecture.
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Finding: the current dev checkout already provides the durable SQLite job queue and plugin job-handler seam, but the shared Jobs screen from #315 has not landed. I will register voice model and transcription work with the existing queue, keep the model downloader behind an injectable trait, and merge dev before the final gates so the Jobs UI can be integrated if it is ready. Model files remain separately downloaded, SHA-256 verified and private under .system.

Finding: the current `dev` checkout already provides the durable SQLite job queue and plugin job-handler seam, but the shared Jobs screen from #315 has not landed. I will register voice model and transcription work with the existing queue, keep the model downloader behind an injectable trait, and merge `dev` before the final gates so the Jobs UI can be integrated if it is ready. Model files remain separately downloaded, SHA-256 verified and private under `.system`.
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Pinned licensing finding: the selected S1-mini GGUF revision publishes an Apache 2.0 license with an additional exact-name clause. I copied its LICENSE and NOTICE files into licenses/voice/ and updated the root NOTICE to credit “S1-mini by Superwhisper”. The Parakeet INT8 export is attributed to NVIDIA under CC BY 4.0 with its pinned source revision. Neither model weight file is stored in the repository or release image.

Pinned licensing finding: the selected S1-mini GGUF revision publishes an Apache 2.0 license with an additional exact-name clause. I copied its LICENSE and NOTICE files into `licenses/voice/` and updated the root NOTICE to credit “S1-mini by Superwhisper”. The Parakeet INT8 export is attributed to NVIDIA under CC BY 4.0 with its pinned source revision. Neither model weight file is stored in the repository or release image.
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Finding: transcription upload stored its private recording before it enqueued the model download. If that queue write failed, the HTTP request returned an error but left the recording behind. The upload path now removes that recording on the queue failure. The same File stays available when a draft is stacked/restored or the Note editor opens, so the accepted transcript request still runs after save.

Finding: transcription upload stored its private recording before it enqueued the model download. If that queue write failed, the HTTP request returned an error but left the recording behind. The upload path now removes that recording on the queue failure. The same File stays available when a draft is stacked/restored or the Note editor opens, so the accepted transcript request still runs after save.
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The backend path now retains Parakeet token timestamps in the private result and exposes them on the transcription status endpoint. Chunks prefer a 300 ms quiet run, keep 500 ms overlap, and filter timestamps back to non-overlapping core audio. Focused unit cases cover silence selection, the five-minute input cap, and duplicated overlap text. I also found the existing shared recorder in job/preview-attach; I am checking its delta and will integrate it so Composer and Calendar Item Preview use one component. No model benchmark has run yet.

The backend path now retains Parakeet token timestamps in the private result and exposes them on the transcription status endpoint. Chunks prefer a 300 ms quiet run, keep 500 ms overlap, and filter timestamps back to non-overlapping core audio. Focused unit cases cover silence selection, the five-minute input cap, and duplicated overlap text. I also found the existing shared recorder in `job/preview-attach`; I am checking its delta and will integrate it so Composer and Calendar Item Preview use one component. No model benchmark has run yet.
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Finding: the initial transcription flow could enqueue the pinned 1.1 GB model download before validating the uploaded recording. A rejected long recording could therefore cause a large download without starting a valid transcription.

Fix: defer model-job enqueue until after bounded media decode. The Notes package suite now passes with this ordering (117 passed; 0 failed; 1 ignored). I will add a real-server adversarial probe that verifies a one-hour recording is rejected before any model download job is created.

Current head: f3bb9176 feat(notes): add local voice transcription pipeline.

Finding: the initial transcription flow could enqueue the pinned 1.1 GB model download before validating the uploaded recording. A rejected long recording could therefore cause a large download without starting a valid transcription. Fix: defer model-job enqueue until after bounded media decode. The Notes package suite now passes with this ordering (`117 passed; 0 failed; 1 ignored`). I will add a real-server adversarial probe that verifies a one-hour recording is rejected before any model download job is created. Current head: `f3bb9176 feat(notes): add local voice transcription pipeline`.
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Production-flow finding: with automatic model downloads disabled and no installed models, POST /api/v1/notes/voice/transcriptions correctly returns HTTP 409 (Enable local model downloads in Settings → Voice before transcribing). I updated Composer and Calendar feedback to show that server message, and the production E2E now verifies that the recording remains saved without queueing a job in this state. The real-server adversarial probe separately checks 202 acceptance and bounded failure for a one-hour recording.

Committed: 6088037c (web integration), 510c77fa (Voice adversarial probe), ec6ebfac (unavailable-model feedback).

Production-flow finding: with automatic model downloads disabled and no installed models, `POST /api/v1/notes/voice/transcriptions` correctly returns HTTP 409 (`Enable local model downloads in Settings → Voice before transcribing`). I updated Composer and Calendar feedback to show that server message, and the production E2E now verifies that the recording remains saved without queueing a job in this state. The real-server adversarial probe separately checks 202 acceptance and bounded failure for a one-hour recording. Committed: `6088037c` (web integration), `510c77fa` (Voice adversarial probe), `ec6ebfac` (unavailable-model feedback).
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O2 benchmark (aarch64, two-CPU Podman limit) completed on the same 55.468-second synthetic eSpeak PCM sample as the local run will use. Exact output:

VOICE_BENCH audio_seconds=55.468 elapsed_seconds=42.966 rtf=0.775 cleanup_failed=false raw_bytes=756
test voice_engine::tests::optional_local_voice_benchmark ... ok
test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 118 filtered out; finished in 42.98s
Maximum resident set size (kbytes): 1703268

The benchmark container and its remote scratch directory have been removed.

O2 benchmark (aarch64, two-CPU Podman limit) completed on the same 55.468-second synthetic eSpeak PCM sample as the local run will use. Exact output: ```text VOICE_BENCH audio_seconds=55.468 elapsed_seconds=42.966 rtf=0.775 cleanup_failed=false raw_bytes=756 test voice_engine::tests::optional_local_voice_benchmark ... ok test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 118 filtered out; finished in 42.98s Maximum resident set size (kbytes): 1703268 ``` The benchmark container and its remote scratch directory have been removed.
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Progress: merged latest fetched origin/dev at 413ccaa7 into job/voice as a224b4c8. The merge includes concurrent mobile-focus, mail, and calendar changes; the voice actions and keyboard-focus callback are both retained. The jobs-page #315 registry is not an ancestor of this dev tip (git merge-base --is-ancestor origin/job/jobs-page origin/dev returned 1), so the model downloader remains behind VoiceModelDownloader until that work lands. Regenerating OpenAPI artifacts on the merged source now.

Progress: merged latest fetched `origin/dev` at `413ccaa7` into `job/voice` as `a224b4c8`. The merge includes concurrent mobile-focus, mail, and calendar changes; the voice actions and keyboard-focus callback are both retained. The jobs-page #315 registry is not an ancestor of this `dev` tip (`git merge-base --is-ancestor origin/job/jobs-page origin/dev` returned 1), so the model downloader remains behind `VoiceModelDownloader` until that work lands. Regenerating OpenAPI artifacts on the merged source now.
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Finding after merging origin/dev: the server link fails because Voice's sherpa-onnx-sys and the incoming calternal-plugin-ai ort-sys both define ONNX symbols. Evidence from cargo run -p calternal-server -- openapi: rust-lld: error: duplicate symbol: onnx::shape_inference::InferFunctionOutputTypes, once from libort_sys-*.rlib and once from libsherpa_onnx_sys-*.rlib. I am checking the link modes and bundled runtimes before changing the integration.

Finding after merging `origin/dev`: the server link fails because Voice's `sherpa-onnx-sys` and the incoming `calternal-plugin-ai` `ort-sys` both define ONNX symbols. Evidence from `cargo run -p calternal-server -- openapi`: `rust-lld: error: duplicate symbol: onnx::shape_inference::InferFunctionOutputTypes`, once from `libort_sys-*.rlib` and once from `libsherpa_onnx_sys-*.rlib`. I am checking the link modes and bundled runtimes before changing the integration.
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The server now links after the Sherpa change (cargo run -p calternal-server -- openapi finished successfully). ldd resolves libsherpa-onnx-c-api.so and libonnxruntime.so; both image build paths now copy the shared libraries into the runtime image. I kept calternal-embed's static ORT setting to avoid changing its runtime behavior. Commits: 3ec2f5c2 regenerates the merged Mail/Voice API contract and client; da94baea fixes the ONNX symbol collision and packages Sherpa's shared libraries.

The server now links after the Sherpa change (`cargo run -p calternal-server -- openapi` finished successfully). `ldd` resolves `libsherpa-onnx-c-api.so` and `libonnxruntime.so`; both image build paths now copy the shared libraries into the runtime image. I kept calternal-embed's static ORT setting to avoid changing its runtime behavior. Commits: `3ec2f5c2` regenerates the merged Mail/Voice API contract and client; `da94baea` fixes the ONNX symbol collision and packages Sherpa's shared libraries.
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Production E2E finding (2026-09-29): bun run --cwd apps/web test:e2e:preview-attach on the real production server failed its existing Calendar action-order assertion. At Agenda, the browser saw Copy link, Attach file, Edit log entry, Record voice note, Open day, Delete log entry; the expected shared order places Record voice note and Open day before Edit log entry. I moved the Edit control back after Open day in the shared ItemPreview action group. I will rerun the production E2E after rebuilding the embedded app.

Production E2E finding (2026-09-29): `bun run --cwd apps/web test:e2e:preview-attach` on the real production server failed its existing Calendar action-order assertion. At Agenda, the browser saw Copy link, Attach file, Edit log entry, Record voice note, Open day, Delete log entry; the expected shared order places Record voice note and Open day before Edit log entry. I moved the Edit control back after Open day in the shared `ItemPreview` action group. I will rerun the production E2E after rebuilding the embedded app.
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O2 remeasurement completed on 2026-09-29 with the shared Sherpa ONNX 1.13.8 runtime, pinned model files, 55.468 seconds of synthetic eSpeak PCM, a 2-CPU quota and an 8 GiB container limit. The test reported VOICE_BENCH audio_seconds=55.468 elapsed_seconds=32.967 rtf=0.594 cleanup_failed=false raw_bytes=756; /usr/bin/time -v reported 1,704,072 KiB maximum RSS and exit status 0. Model loading, ASR and cleanup are included; real-speech accuracy is not measured. The ephemeral O2 benchmark container and /home/kayg/voice-bench-373-20260929T0221 scratch directory have been removed. Recorded in docs/research/voice-transcription.md at commit 94ccf2a1.

O2 remeasurement completed on 2026-09-29 with the shared Sherpa ONNX 1.13.8 runtime, pinned model files, 55.468 seconds of synthetic eSpeak PCM, a 2-CPU quota and an 8 GiB container limit. The test reported `VOICE_BENCH audio_seconds=55.468 elapsed_seconds=32.967 rtf=0.594 cleanup_failed=false raw_bytes=756`; `/usr/bin/time -v` reported 1,704,072 KiB maximum RSS and exit status 0. Model loading, ASR and cleanup are included; real-speech accuracy is not measured. The ephemeral O2 benchmark container and `/home/kayg/voice-bench-373-20260929T0221` scratch directory have been removed. Recorded in `docs/research/voice-transcription.md` at commit `94ccf2a1`.
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Production E2E follow-up (2026-09-29): the first Composer open passed and its 390 px light screenshots were saved. The later draft-restore check sent the n shortcut immediately after page.reload() and timed out waiting for the Composer. The route had not yet hydrated. I added a wait for the real Calendar Log block before sending the shortcut; the behavior assertion and expected result are unchanged.

Production E2E follow-up (2026-09-29): the first Composer open passed and its 390 px light screenshots were saved. The later draft-restore check sent the `n` shortcut immediately after `page.reload()` and timed out waiting for the Composer. The route had not yet hydrated. I added a wait for the real Calendar Log block before sending the shortcut; the behavior assertion and expected result are unchanged.
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Production E2E finding (2026-09-29): after the 390 px light context saved voice attachments, the following 390 px dark Calendar Week route rendered the two edge-proof Logs and an overflow +2, but no visible .block.actual for the target Log. The panel had no .load-error, and failedResponses was empty. This is test-state accumulation: the E2E mutated the shared Log between light and dark screenshot contexts. I am moving all Calendar/Search matrix captures before the voice writes so both themes use the same real pre-mutation data; no UI assertion or expected behavior changes.

Production E2E finding (2026-09-29): after the 390 px light context saved voice attachments, the following 390 px dark Calendar Week route rendered the two edge-proof Logs and an overflow `+2`, but no visible `.block.actual` for the target Log. The panel had no `.load-error`, and `failedResponses` was empty. This is test-state accumulation: the E2E mutated the shared Log between light and dark screenshot contexts. I am moving all Calendar/Search matrix captures before the voice writes so both themes use the same real pre-mutation data; no UI assertion or expected behavior changes.
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Production E2E finding (2026-09-29): after creating the real Log, the 390 px light Search view showed No matches for “Preview attachment proof” and no option rows. The Calendar data was present and the page had no API error. The E2E navigated to Search before the Search index exposed the new Log. I am adding an API-backed index readiness wait before opening the Search UI; the expected result and screenshot coverage stay the same.

Production E2E finding (2026-09-29): after creating the real Log, the 390 px light Search view showed `No matches for “Preview attachment proof”` and no option rows. The Calendar data was present and the page had no API error. The E2E navigated to Search before the Search index exposed the new Log. I am adding an API-backed index readiness wait before opening the Search UI; the expected result and screenshot coverage stay the same.
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Production E2E finding: on the 1440 px light Search Log card, the existing setup saved a file and then kept a recording. The run timed out waiting for the expected 4-attachment list (apps/web/e2e/preview-attach.mjs:342). SearchPreview.finishCalendarAttachments appended the recording file but did not create the linked Note that the Calendar preview creates for a voice memo, so the Search Log lacked the second attachment and transcription destination. I am aligning Search with Calendar: link the voice file into a Note and queue local transcription there, while preserving the current E2E attachment assertion.

Production E2E finding: on the 1440 px light Search Log card, the existing setup saved a file and then kept a recording. The run timed out waiting for the expected 4-attachment list (apps/web/e2e/preview-attach.mjs:342). SearchPreview.finishCalendarAttachments appended the recording file but did not create the linked Note that the Calendar preview creates for a voice memo, so the Search Log lacked the second attachment and transcription destination. I am aligning Search with Calendar: link the voice file into a Note and queue local transcription there, while preserving the current E2E attachment assertion.
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Production E2E finding: after Search attaches a voice memo and creates its linked Note, a 390 px phone preview showed the expanded action group at 328 px while the Log card was 322 px. The active recording state already suppresses Edit and Delete, but still exposed Open note, a navigation action that can leave the in-progress recorder. ItemPreview now suppresses that navigation action under recordingLocked; the existing toolbar-within-card assertion remains unchanged.

Production E2E finding: after Search attaches a voice memo and creates its linked Note, a 390 px phone preview showed the expanded action group at 328 px while the Log card was 322 px. The active recording state already suppresses Edit and Delete, but still exposed Open note, a navigation action that can leave the in-progress recorder. ItemPreview now suppresses that navigation action under recordingLocked; the existing toolbar-within-card assertion remains unchanged.
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Production E2E finding: all Calendar, Composer, Search, Settings and device/theme screenshots completed, but the final assertion treated eight Chromium 409 resource messages as console errors. The feature deliberately queues voice transcription after Keep while automatic model downloads are disabled; Search and restored Composer explicitly expect HTTP 409 for that condition. I am correlating only those exact 409 console messages with the transcription endpoint response and asserting that every observed transcription response remains 409, so unrelated console errors still fail the suite.

Production E2E finding: all Calendar, Composer, Search, Settings and device/theme screenshots completed, but the final assertion treated eight Chromium 409 resource messages as console errors. The feature deliberately queues voice transcription after Keep while automatic model downloads are disabled; Search and restored Composer explicitly expect HTTP 409 for that condition. I am correlating only those exact 409 console messages with the transcription endpoint response and asserting that every observed transcription response remains 409, so unrelated console errors still fail the suite.
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Voice adversarial evidence: the valid voice-one-hour.webm fixture is 2,183,438 bytes and below the 32 MiB Voice upload cap. Its transcription POST returned HTTP 413 with request body too large before the Notes handler ran. The shared calternal-plugin::drain_oversized_json middleware applies a 1 MiB default to /api/v1/notes/voice/transcriptions, so it masks the route’s larger bound. I will add a path-specific 32 MiB allowance there and apply the same bound to the Voice route’s Axum body limit; the existing adversarial 202 assertion remains unchanged and then exercises bounded decode. The shared middleware change is scoped to this Voice route.

Voice adversarial evidence: the valid `voice-one-hour.webm` fixture is 2,183,438 bytes and below the 32 MiB Voice upload cap. Its transcription POST returned HTTP 413 with `request body too large` before the Notes handler ran. The shared `calternal-plugin::drain_oversized_json` middleware applies a 1 MiB default to `/api/v1/notes/voice/transcriptions`, so it masks the route’s larger bound. I will add a path-specific 32 MiB allowance there and apply the same bound to the Voice route’s Axum body limit; the existing adversarial 202 assertion remains unchanged and then exercises bounded decode. The shared middleware change is scoped to this Voice route.
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Adversarial update for #373:

  • The Voice probe now passes after the route-specific upload cap fix. It accepts the 2,183,438-byte one-hour recording within the 32 MiB Voice limit, enqueues it, and exercises bounded decode and cleanup. Output: Voice adversarial probe passed: auth, malformed and oversized uploads, hostile target, concurrency, User isolation, and bounded one-hour decode.
  • The direct Calendar Event tag probe passed: Unicode/bidi, 65,536-byte category, 10 malformed inputs, and 24 parallel tag/range/search reads.
  • The direct Mail API probe passed: anonymous access, Unicode and public-endpoint policy, malformed/oversized JSON, hostile IDs/cursors, and 24 parallel reads.

The broad adversarial run did not complete. Two browser probes initially lacked CALTERNAL_SERVER_BIN; I added the configured binary export to tests/adversarial/run.sh and committed it. While that broad run was active, I edited the runner, and the live shell later stopped with tests/adversarial/run.sh: line 304: n: command not found. The Voice, Calendar and Mail probes were then run directly against the built server. I did not rerun the broad campaign.

The other observed findings are filed for follow-up: #383 (missing OpenAPI policy metadata for GET /api/v1/mail/accounts; handler authorization still needs verification), #385 (editor undo/redo text difference, peer conflict timeout, and restart exact-once timeout), and #386 (xuser fixture Folder creation returned HTTP -1). The broad run was incomplete, and those probes did not establish final root causes.

Adversarial update for #373: - The Voice probe now passes after the route-specific upload cap fix. It accepts the 2,183,438-byte one-hour recording within the 32 MiB Voice limit, enqueues it, and exercises bounded decode and cleanup. Output: `Voice adversarial probe passed: auth, malformed and oversized uploads, hostile target, concurrency, User isolation, and bounded one-hour decode.` - The direct Calendar Event tag probe passed: Unicode/bidi, 65,536-byte category, 10 malformed inputs, and 24 parallel tag/range/search reads. - The direct Mail API probe passed: anonymous access, Unicode and public-endpoint policy, malformed/oversized JSON, hostile IDs/cursors, and 24 parallel reads. The broad adversarial run did not complete. Two browser probes initially lacked `CALTERNAL_SERVER_BIN`; I added the configured binary export to `tests/adversarial/run.sh` and committed it. While that broad run was active, I edited the runner, and the live shell later stopped with `tests/adversarial/run.sh: line 304: n: command not found`. The Voice, Calendar and Mail probes were then run directly against the built server. I did not rerun the broad campaign. The other observed findings are filed for follow-up: #383 (missing OpenAPI policy metadata for `GET /api/v1/mail/accounts`; handler authorization still needs verification), #385 (editor undo/redo text difference, peer conflict timeout, and restart exact-once timeout), and #386 (xuser fixture Folder creation returned HTTP -1). The broad run was incomplete, and those probes did not establish final root causes.
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Complete — job/voice

Pushed job/voice at head 785e7beb30b56879569fadb12a464249de30d673. No merge into dev was performed.

Built

  • Added local transcription for saved voice recordings with runtime downloads from pinned model revisions and SHA-256 verification. Model weights are not bundled in the repository or images.
  • Added Parakeet v2 and S1-mini license notices and attribution in NOTICE, including CC-BY-4.0 attribution and the S1-mini naming condition.
  • Kept model downloads behind the VoiceModelDownloader trait because the shared job registry from #315 is not present on this base.
  • Connected voice recording to Composer, Calendar and Search Log destinations. Keeping a Search Log recording creates a linked Note and queues transcription against its stable note ID. Restored saved recordings can also be queued.
  • Raised the transcription route’s body allowance to the Notes 32 MiB limit in both the middleware drain and route extractor. This fixes the shared 1 MiB JSON limit rejecting a valid 2,183,438-byte one-hour recording before Voice could enforce its own bound.
  • Added the Voice adversarial probe and corrected the adversarial runner to pass its configured server binary to browser probes.

Files

Core Voice implementation: crates/plugins/notes/src/voice.rs, voice_engine.rs, voice_models.rs, crates/plugins/notes/src/lib.rs, crates/calternal-fs/src/root.rs, and crates/calternal-plugin/src/lib.rs.

Web and shared UI: apps/web/src/lib/composer/Composer.svelte, apps/web/src/lib/composer/voice-transcription.ts, apps/web/src/lib/search/SearchPreview.svelte, apps/web/src/routes/calendar/[view]/[date]/+page.svelte, apps/web/src/routes/settings/voice/VoiceSection.svelte, packages/ui/src/components/composer/VoiceRecordingPill.svelte, and packages/ui/src/components/calendar/ItemPreview.svelte.

Also updated NOTICE, licenses/voice/, docs/research/voice-transcription.md, container/runtime configuration, the generated API client and OpenAPI contract, Cargo.lock, the real-build preview E2E, and tests/adversarial/ including its 2,183,438-byte WebM fixture.

Benchmarks

  • Local x86_64: 55.468 audio seconds; 75.990 seconds elapsed; RTF 1.370; peak RSS 1,928,532 KiB.
  • O2 AArch64: 55.468 audio seconds; 32.967 seconds elapsed; RTF 0.594; peak RSS 1,704,072 KiB. Remote scratch data was removed.

Gates

Verbatim successful output lines:

cargo fmt --check
(no output; exit 0)

    Finished `dev` profile [unoptimized + debuginfo] target(s) in 8m 40s

test result: ok. 122 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out in 57.65s

svelte-check found 0 errors and 0 warnings

 Test Files  116 passed (116)
      Tests  761 passed (761)
   Start at  06:14:37
   Duration  92.51s (transform 57%, environment 17%, import 14%, tests 8%, setup 3%)

cargo test finished with Finished test profile [unoptimized + debuginfo] target(s) in 14m 36s; its 75 result lines totalled 1,462 passed, 0 failed, 13 ignored. Vitest also printed jsdom scrollTo and CSS parse diagnostics and an environment timing advisory; the command exited 0.

Adversarial round and known gaps

The Voice probe passed after the route limit fix: Voice adversarial probe passed: auth, malformed and oversized uploads, hostile target, concurrency, User isolation, and bounded one-hour decode. Direct Calendar Event tag and Mail API probes also passed.

The broad adversarial campaign was incomplete. Two browser probes initially lacked CALTERNAL_SERVER_BIN; I fixed the runner. I edited the runner while the broad command was active, and its live shell later stopped with tests/adversarial/run.sh: line 304: n: command not found. I did not rerun the broad campaign. Observed non-Voice findings are filed as #383 (missing OpenAPI policy metadata for GET /api/v1/mail/accounts; handler authorization still needs verification), #385 (editor undo/redo text difference, peer conflict timeout, restart exact-once timeout), and #386 (xuser fixture Folder creation returned HTTP -1). The incomplete run did not establish their root causes.

The #315 shared job registry integration remains pending; the downloader seam is in place. This is the implementation choice required by the issue while #315 is outstanding. The other uncovered implementation choice is a route-specific 32 MiB allowance for the exact Voice transcription paths, kept in step with MAX_UPLOAD_BYTES so normal JSON routes retain their existing bound.

Screenshot evidence

Production-build capture output: preview attach e2e: inline recording, unavailable-model handling and Voice settings passed at 390/820/1440 in light/dark; screenshots in /home/kayg/Developer/calternal-wt/voice/artifacts/preview-attach.

Calendar: Today, Day, Week, Month, edge cases, week light, week dark.

Previews and Composer: preview idle, preview recording, preview after Keep, Composer idle, Composer recording, Composer after Keep, inline preview states, Search preview.

Voice settings: saved state, model states.

## Complete — job/voice Pushed `job/voice` at head `785e7beb30b56879569fadb12a464249de30d673`. No merge into `dev` was performed. ### Built - Added local transcription for saved voice recordings with runtime downloads from pinned model revisions and SHA-256 verification. Model weights are not bundled in the repository or images. - Added Parakeet v2 and S1-mini license notices and attribution in `NOTICE`, including CC-BY-4.0 attribution and the S1-mini naming condition. - Kept model downloads behind the `VoiceModelDownloader` trait because the shared job registry from #315 is not present on this base. - Connected voice recording to Composer, Calendar and Search Log destinations. Keeping a Search Log recording creates a linked Note and queues transcription against its stable note ID. Restored saved recordings can also be queued. - Raised the transcription route’s body allowance to the Notes 32 MiB limit in both the middleware drain and route extractor. This fixes the shared 1 MiB JSON limit rejecting a valid 2,183,438-byte one-hour recording before Voice could enforce its own bound. - Added the Voice adversarial probe and corrected the adversarial runner to pass its configured server binary to browser probes. ### Files Core Voice implementation: `crates/plugins/notes/src/voice.rs`, `voice_engine.rs`, `voice_models.rs`, `crates/plugins/notes/src/lib.rs`, `crates/calternal-fs/src/root.rs`, and `crates/calternal-plugin/src/lib.rs`. Web and shared UI: `apps/web/src/lib/composer/Composer.svelte`, `apps/web/src/lib/composer/voice-transcription.ts`, `apps/web/src/lib/search/SearchPreview.svelte`, `apps/web/src/routes/calendar/[view]/[date]/+page.svelte`, `apps/web/src/routes/settings/voice/VoiceSection.svelte`, `packages/ui/src/components/composer/VoiceRecordingPill.svelte`, and `packages/ui/src/components/calendar/ItemPreview.svelte`. Also updated `NOTICE`, `licenses/voice/`, `docs/research/voice-transcription.md`, container/runtime configuration, the generated API client and OpenAPI contract, `Cargo.lock`, the real-build preview E2E, and `tests/adversarial/` including its 2,183,438-byte WebM fixture. ### Benchmarks - Local x86_64: 55.468 audio seconds; 75.990 seconds elapsed; RTF 1.370; peak RSS 1,928,532 KiB. - O2 AArch64: 55.468 audio seconds; 32.967 seconds elapsed; RTF 0.594; peak RSS 1,704,072 KiB. Remote scratch data was removed. ### Gates Verbatim successful output lines: ```text cargo fmt --check (no output; exit 0) Finished `dev` profile [unoptimized + debuginfo] target(s) in 8m 40s test result: ok. 122 passed; 0 failed; 1 ignored; 0 measured; 0 filtered out in 57.65s svelte-check found 0 errors and 0 warnings Test Files 116 passed (116) Tests 761 passed (761) Start at 06:14:37 Duration 92.51s (transform 57%, environment 17%, import 14%, tests 8%, setup 3%) ``` `cargo test` finished with `Finished `test` profile [unoptimized + debuginfo] target(s) in 14m 36s`; its 75 result lines totalled 1,462 passed, 0 failed, 13 ignored. Vitest also printed jsdom `scrollTo` and CSS parse diagnostics and an environment timing advisory; the command exited 0. ### Adversarial round and known gaps The Voice probe passed after the route limit fix: `Voice adversarial probe passed: auth, malformed and oversized uploads, hostile target, concurrency, User isolation, and bounded one-hour decode.` Direct Calendar Event tag and Mail API probes also passed. The broad adversarial campaign was incomplete. Two browser probes initially lacked `CALTERNAL_SERVER_BIN`; I fixed the runner. I edited the runner while the broad command was active, and its live shell later stopped with `tests/adversarial/run.sh: line 304: n: command not found`. I did not rerun the broad campaign. Observed non-Voice findings are filed as #383 (missing OpenAPI policy metadata for `GET /api/v1/mail/accounts`; handler authorization still needs verification), #385 (editor undo/redo text difference, peer conflict timeout, restart exact-once timeout), and #386 (xuser fixture Folder creation returned HTTP -1). The incomplete run did not establish their root causes. The #315 shared job registry integration remains pending; the downloader seam is in place. This is the implementation choice required by the issue while #315 is outstanding. The other uncovered implementation choice is a route-specific 32 MiB allowance for the exact Voice transcription paths, kept in step with `MAX_UPLOAD_BYTES` so normal JSON routes retain their existing bound. ### Screenshot evidence Production-build capture output: `preview attach e2e: inline recording, unavailable-model handling and Voice settings passed at 390/820/1440 in light/dark; screenshots in /home/kayg/Developer/calternal-wt/voice/artifacts/preview-attach`. Calendar: [Today](https://git.kayg.org/attachments/bbeca717-07cc-4fa0-a8f6-656745acb061), [Day](https://git.kayg.org/attachments/00413e86-972a-417c-96ab-47f02d84ea9d), [Week](https://git.kayg.org/attachments/f2daac24-cdd8-4e28-84a7-37f3426c8505), [Month](https://git.kayg.org/attachments/71c152f0-fc15-45ad-bbb2-1f7ff3d1fc98), [edge cases](https://git.kayg.org/attachments/60b2e957-4170-4ace-9057-8ccc84c36c21), [week light](https://git.kayg.org/attachments/8168cd05-edc2-490e-9c3c-12ec48e58e50), [week dark](https://git.kayg.org/attachments/761bcca0-428e-4a46-a50f-8874d0e5a1df). Previews and Composer: [preview idle](https://git.kayg.org/attachments/3195b31f-7bf5-4baa-9fe1-925210988321), [preview recording](https://git.kayg.org/attachments/f3e852ff-feb8-43d5-819e-8281d5958d3c), [preview after Keep](https://git.kayg.org/attachments/dad4fdfb-a9b1-4496-a5e3-1f2edf40aa57), [Composer idle](https://git.kayg.org/attachments/ab83322a-bfd2-428a-8958-50e0199a18af), [Composer recording](https://git.kayg.org/attachments/aa12739b-4181-4f50-a6fb-ddb3d0d55feb), [Composer after Keep](https://git.kayg.org/attachments/bc4e794d-5631-4460-8eca-f01d4cc82523), [inline preview states](https://git.kayg.org/attachments/cc3405a6-b22f-4a43-8b5a-33328c3c1ae5), [Search preview](https://git.kayg.org/attachments/fc8793b6-4b03-4313-af1b-fde3b5414663). Voice settings: [saved state](https://git.kayg.org/attachments/10ed429b-14b1-4a85-a771-3501695678d1), [model states](https://git.kayg.org/attachments/62a610a3-a396-44fa-94cf-0a5a16f990b3).
Author
Owner

Correction to the Cargo test line in the report. The exact output was:

    Finished `test` profile [unoptimized + debuginfo] target(s) in 14m 36s

Decisions not covered by DESIGN:

  • The upload allowance is applied in the generic body-drain middleware only for the full Voice transcription route and its plugin-relative form, and matches the Notes 32 MiB MAX_UPLOAD_BYTES. This lets Voice enforce its own cap after the shared middleware without widening other JSON routes.
  • When a recording is kept in Search Log, the client creates a linked Note and uses that stable Note ID as the transcription target.
  • The downloader uses the VoiceModelDownloader trait seam until the #315 shared job registry is available, as required by this issue.
Correction to the Cargo test line in the report. The exact output was: ```text Finished `test` profile [unoptimized + debuginfo] target(s) in 14m 36s ``` Decisions not covered by DESIGN: - The upload allowance is applied in the generic body-drain middleware only for the full Voice transcription route and its plugin-relative form, and matches the Notes 32 MiB `MAX_UPLOAD_BYTES`. This lets Voice enforce its own cap after the shared middleware without widening other JSON routes. - When a recording is kept in Search Log, the client creates a linked Note and uses that stable Note ID as the transcription target. - The downloader uses the `VoiceModelDownloader` trait seam until the #315 shared job registry is available, as required by this issue.
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