EdisonJwa
4c64517e45
Documentation update following the Android audio spike pass.
Decision register (v0.9.3 → v0.9.4):
- DEC-011.1 promoted from
'Accepted (desktop: cpal) / Deferred (mobile)'
to
'Accepted (desktop: cpal; Android: cpal-on-Oboe) / Deferred (iOS)'.
- Evidence pointer added: poc/audio-capture-playback-android-spike/
VERIFICATION.md.
PoC plan (v0.2.0 → v0.3.0):
- Audio row promoted from PARTIAL PASS to PASS.
- All six PoC plan entries are now PASS.
PoC results summary (v0.1.0 → v0.2.0):
- Audio row collapsed into one PASS spanning both spikes.
- RISK-PoC-001 narrowed from 'mobile audio' to 'iOS audio only'.
- Toolchain table expanded with Android NDK, cargo-ndk, AGP/
Gradle/Kotlin, jni/ndk-context/android_logger, and the test
device.
Cross-spike pointers updated:
- poc/audio-capture-playback-spike/VERIFICATION.md result and
follow-up sections updated to reference the Android spike.
- poc/README.md status table lists both audio spike directories.
CHANGELOG updated under [Unreleased].
8.2 KiB
8.2 KiB
PoC Results Summary
Document type: Governance / PoC Results Summary
Version: 0.2.0
Status: Draft
Language: English
Product: Chanora
Repo path: docs/governance/poc-results-summary.md
1. Purpose
This document is the single top-level entry point summarising the
outcome of the technical proof-of-concept (PoC) phase defined by
docs/architecture/proof-of-concept-plan.md.
It exists so that reviewers (security, audit, baseline-approval) can
read one page and follow pointers to evidence, rather than having to
crawl seven VERIFICATION.md files under poc/.
This summary records facts as of 2026-05-13.
2. Status table
| Spike | PoC plan exit criterion | Status | Evidence |
|---|---|---|---|
flutter_rust_bridge_hello |
Flutter can call Rust and receive event stream data | PASS | poc/flutter_rust_bridge_hello/VERIFICATION.md |
tsclientlib-connect-spike |
Rust can connect to a compatible server/test double | PASS | poc/tsclientlib-connect-spike/VERIFICATION.md |
secure-storage-spike |
Secret write/read/delete works through platform secure storage | PASS (Linux only) | poc/secure-storage-spike/VERIFICATION.md |
sqlite-storage-spike |
Schema, migration, and repository pattern are demonstrated | PASS | poc/sqlite-storage-spike/VERIFICATION.md |
diagnostics-redaction-spike |
Password and identity-secret samples are redacted (REDACT-TC-001..010 covered) | PASS | poc/diagnostics-redaction-spike/VERIFICATION.md |
audio-capture-playback-spike (desktop half) + audio-capture-playback-android-spike (mobile half) |
Capture/playback works on at least one desktop and one mobile target | PASS — desktop on Linux + PipeWire; mobile on a physical Motorola Moto G Stylus 5G running Android 14 arm64-v8a. iOS remains explicitly deferred per DEC-011.1. | poc/audio-capture-playback-spike/VERIFICATION.md, poc/audio-capture-playback-android-spike/VERIFICATION.md |
Aggregate test count across the PoCs: 44 tests + 1 live-server CLI run + 1 desktop-audio CLI round-trip + 1 Android playback + 1 Android capture (real-device, with WAV file inspection), all passing in the recorded runs. All six PoC plan entries now PASS.
3. Toolchain exercised
| Tool | Version |
|---|---|
| Rust toolchain | stable 1.95.0 (59807616e 2026-04-14) |
| Rust Android targets | aarch64-linux-android, armv7-linux-androideabi, x86_64-linux-android, i686-linux-android |
| Flutter SDK | 3.41.9 stable (Dart 3.11.5) |
flutter_rust_bridge (Rust + Dart) and codegen |
2.12.0 |
tsclientlib |
git 04aa2491 (no published crates.io release) |
cpal |
0.16 |
rusqlite |
0.32 (bundled) |
keyring |
3.6.3 (sync-secret-service + linux-native) |
linux-keyutils |
0.2.5 |
regex / serde / serde_json |
1 |
| Android SDK | platform 34, build-tools 34.0.0 |
| Android NDK | r26.3.11579264 |
cargo-ndk |
4.1.2 |
| AGP / Gradle / Kotlin | 8.5.2 / 8.7 / 1.9.24 |
jni, ndk-context, android_logger |
0.21, 0.1.1, 0.14 |
| Host OS for verification | Linux (Arch, kernel 7.0.5-arch1-1, x86_64) |
| Host audio server | PipeWire 1.6.4 (via pcm_pipewire ALSA plugin) |
| Host Secret Service backend | gnome-keyring (default collection observed locked; kernel keyutils backend used for hermetic tests) |
| Android test device | Motorola Moto G Stylus 5G (2023), Android 14 (SDK 34), arm64-v8a |
4. Owner-confirmed decisions arising from the PoC phase
Recorded in docs/governance/product-decision-register.md at version 0.9.3:
| Decision | Status | Closed by |
|---|---|---|
| DEC-014 typed bridge | Accepted (flutter_rust_bridge 2.x pinned) |
flutter_rust_bridge_hello |
| DEC-013.1 SQLite crate | Accepted (rusqlite bundled) |
sqlite-storage-spike |
| DEC-013.2 Linux secure-storage backend policy | Accepted (Secret Service preferred, keyutils fallback) | secure-storage-spike |
| DEC-011.1 audio crate | Accepted (desktop: cpal; Android: cpal-on-Oboe) / Deferred (iOS) |
audio-capture-playback-spike (desktop) + audio-capture-playback-android-spike (mobile) |
| DEC-022 canonical implementation directory layout | Accepted (README sketch — apps/chanora_flutter/, core/chanora_core/, crates/chanora_*) |
Owner ruling on 2026-05-13 |
| DEC-020 license | Open / Deferred | Owner deferred 2026-05-13 — remains a public-release blocker |
The remaining DEC-001..012, DEC-015..019, DEC-021 are still in status "Proposed / Owner Confirmation Required" and need owner attention as a separate exercise — they are unaffected by the PoCs.
5. Audit-report coverage
| Audit ID | Verified by | Audit-report row updated? |
|---|---|---|
| SS-AUD-001 (identity secret absent from local DB) | secure-storage-spike |
Yes — docs/security/secure-storage-audit-report.md §4 v0.9.3 |
| SS-AUD-002 (server password absent from local DB) | secure-storage-spike |
Yes |
| SS-AUD-003 (no secrets in logs) | secure-storage-spike + cross-ref diagnostics-redaction-spike |
Yes |
| SS-AUD-004 (no secrets in diagnostic export) | diagnostics-redaction-spike REDACT-TC-008 |
Yes |
| SS-AUD-005 (safe error on backend failure) | secure-storage-spike (test + live CLI fallback) |
Yes |
| SS-AUD-006 (delete removes entry) | secure-storage-spike |
Yes |
| SS-AUD-007 (per-platform documentation) | Linux only — partial | Yes (status: Partial) |
| SS-AUD-008 (migration path safety) | Pending (depends on product chanora_storage) |
Yes (status: Pending) |
| SS-TC-001 (Windows) | Not run | Status: Deferred |
| SS-TC-002 (macOS) | Not run | Status: Deferred |
| SS-TC-003 (Linux) | secure-storage-spike |
PoC Pass |
| SS-TC-004 (Android) | Not run | Status: Deferred |
| SS-TC-005 (iOS) | Not run | Status: Deferred |
| REDACT-TC-001..010 | diagnostics-redaction-spike (12/12) |
Yes — docs/security/diagnostic-redaction-audit-report.md §4 v0.9.3 |
| Export bundle policy §5 (all rows) | diagnostics-redaction-spike |
Yes — §5 v0.9.3 |
6. Open risks and gaps
| ID | Risk | Owner | Recommended close path |
|---|---|---|---|
| RISK-PoC-001 | iOS audio (AVAudioEngine via cpal or a per-platform iOS adapter) is not verified. The desktop and Android halves of the PoC plan's audio criterion are met; iOS is explicitly deferred per DEC-011.1. | Audio Owner + iOS Owner | iOS spike on macOS + Xcode hardware; or accept the risk and discover it during product integration (not recommended). |
| RISK-PoC-002 | Windows / macOS / iOS / Android secure-storage adapters not implemented. SS-TC-001/002/004/005 unverified. | Platform Owners | Per-platform adapter spike or first-implementation-in-chanora_storage with the audit checks re-run on each target. |
| RISK-PoC-003 | License (DEC-020) deferred. Blocks public/store release. | Product Owner + Legal | Owner ruling. |
| RISK-PoC-004 | DEC-001..012, 015..019, 021 still in Proposed status. They do not block PoC code but do block any baseline-approval gate. | Product Owner | Independent owner review of the decision register. |
| RISK-PoC-005 | Production code does not exist yet. README's "Implementation status: Not production-ready" remains accurate. | Software Architect | Promote PoC code into apps/ and crates/ per DEC-022 only after RISK-PoC-003/004 are closed or explicitly accepted. |
7. Non-promotion reminder
Per proof-of-concept-plan.md §4: a PoC is not product code unless
explicitly promoted. Nothing under poc/ should be imported by
the future apps/chanora_flutter or crates/chanora_* trees
without an explicit promotion record per spike.
8. Change History
| Version | Date | Description |
|---|---|---|
| 0.1.0 | 2026-05-14 | Initial PoC results summary. Records the outcome of the first PoC batch (5 PASS, 1 PARTIAL), the toolchain versions exercised, the owner-confirmed decisions, audit-report coverage, and the open risks. |
| 0.2.0 | 2026-05-14 | Audio PoC promoted from PARTIAL to PASS after the Android spike verified the mobile half on a physical Motorola Moto G Stylus 5G running Android 14 arm64-v8a. All six PoC plan entries now PASS. RISK-PoC-001 narrowed from "mobile audio" to "iOS audio only". Android toolchain (NDK r26.3, cargo-ndk, AGP/Gradle/Kotlin, jni/ndk-context/android_logger) added to the toolchain table. |