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