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Agent #17 — Senior Android Engineer (prover core + biometric prompt)

Reports to: Agent #4. Mandate: Owns Android Pramaan core — rapidsnark JNI bridge, snarkjs/WebView prover for spike, BiometricPrompt integration, StrongBox key wrap. KPIs: see role 17 in ../03-team.md.

Week 1 (2026-05-25 → 2026-05-29)​

A17-W1-Mon (2026-05-25) — Mobile subtree layout design (precursor C-101)

  • Done when: mobile/ module structure designed (app, prover, sensors, keystore, scanner, telemetry).
  • Output: docs/team/mobile/subtree-layout-design.md.
  • Verify: each module has owner role assigned.
  • Reviewer: Agents #4, #19.
  • Depends on: A04-W1-Mon.

A17-W1-Tue (2026-05-26) — Pair with Agent #4 on rapidsnark toolchain spike

  • Done when: NDK + CMake build attempted on Linux dev box; arm64-v8a artefact produced.
  • Output: docs/team/mobile/rapidsnark-build-spike.md.
  • Verify: artefact sha256 recorded.
  • Reviewer: Agent #4.
  • Depends on: A17-W1-Mon.

A17-W1-Wed (2026-05-27) — JNI wrapper design

  • Done when: API surface generateProof(witnessJson) -> proofJson designed; memory-safety considerations captured.
  • Output: docs/team/mobile/jni-wrapper-design.md.
  • Verify: cryptographer-reviewer pre-review.
  • Reviewer: Agent #11, Agent #27.
  • Depends on: A17-W1-Tue.

A17-W1-Thu (2026-05-28) — JNI wrapper proof-of-concept against fixed witness

  • Done when: standalone JNI bridge produces proof against fixed witness on Linux x86_64 emulator.
  • Output: docs/team/mobile/jni-poc-result.md.
  • Verify: proof verifies against verification_key.json.
  • Reviewer: Agents #4, #11.
  • Depends on: A17-W1-Wed.

A17-W1-Fri (2026-05-29) — Status post + Pixel-7 emulator green build

  • Done when: rapidsnark builds + JNI bridge runs on Pixel-7 emulator.
  • Output: emulator run log committed.
  • Verify: CI cross-compile step green.
  • Reviewer: Agent #21.
  • Depends on: A17-W1-Thu.

Week 2 (2026-06-01 → 2026-06-05)​

A17-W2-Mon (2026-06-01) — Mobile subtree bootstrap PR (C-101)

  • Done when: → C-101 PR opened.
  • Output: mobile/ tree.
  • Verify: mobile/gradlew assembleDebug green in CI.
  • Reviewer: Agent #4.
  • Depends on: A17-W1-Fri.

A17-W2-Tue (2026-06-02) — Address PR feedback on C-101

  • Done when: feedback addressed; merge-ready.
  • Output: PR updates.
  • Verify: review APPROVE.
  • Reviewer: Agent #4.
  • Depends on: A17-W2-Mon.

A17-W2-Wed (2026-06-03) — Rapidsnark JNI POC PR open (C-104 precursor)

  • Done when: standalone POC committed to feature branch (not yet C-104 PR).
  • Output: feature-branch commits.
  • Verify: smoke test runs in CI on emulator.
  • Reviewer: Agents #4, #11.
  • Depends on: A17-W2-Tue.

A17-W2-Thu (2026-06-04) — Instrumented test framework set up

  • Done when: instrumented test harness in mobile/prover/src/androidTest/ configured; runs on emulator + CI device farm.
  • Output: PR.
  • Verify: harness runs ProverSmokeTest.kt skeleton.
  • Reviewer: Agent #21.
  • Depends on: A17-W2-Wed.

A17-W2-Fri (2026-06-05) — Phase 0 mobile prover sign-off + status post

  • Done when: POC + harness merged; CI builds green.
  • Output: row in docs/team/phase-exits/phase-0-mobile-signoff.md.
  • Verify: artefacts produced; harness runs.
  • Reviewer: Agent #4.
  • Depends on: A17-W2-Thu.

Week 3 (2026-06-08 → 2026-06-12)​

A17-W3-Mon (2026-06-08) — Rapidsnark JNI POC PR (C-104) opened

  • Done when: → C-104 PR opened with smoke test.
  • Output: C-104 PR.
  • Verify: ProverSmokeTest.kt::"generates a valid proof against fixed witness" green.
  • Reviewer: Agents #4, #11, #27.
  • Depends on: A17-W2-Fri.

A17-W3-Tue (2026-06-09) — Prover-latency baseline measurement

  • Done when: prover latency measured on Pixel 7 + emulator; results logged.
  • Output: contribution to docs/team/mobile/prover-latency-baseline.md.
  • Verify: numbers logged.
  • Reviewer: Agent #4.
  • Depends on: A17-W3-Mon.

A17-W3-Wed (2026-06-10) — Cross-line architecture sync attendance + StrongBox wrap design

  • Done when: StrongBox key-wrap design captured (precursor C-144).
  • Output: docs/team/mobile/strongbox-keywrap-design.md.
  • Verify: design covers setIsStrongBoxBacked(true) + biometric-bound key.
  • Reviewer: Agents #12, #27.
  • Depends on: A17-W3-Tue.

A17-W3-Thu (2026-06-11) — Address feedback on C-104 — first pass

  • Done when: cryptographer-reviewer comments addressed.
  • Output: PR updates.
  • Verify: APPROVE secured from at least one sub-agent review.
  • Reviewer: Agents #11, #27.
  • Depends on: A17-W3-Mon.

A17-W3-Fri (2026-06-12) — Status post + enrollment-flow CameraX spike (precursor C-143)

  • Done when: spike confirms CameraX face detection on-device.
  • Output: docs/team/mobile/cameramx-spike.md.
  • Verify: capture cycle works on Pixel 7.
  • Reviewer: Agent #19.
  • Depends on: A17-W3-Thu.

Week 4 (2026-06-15 → 2026-06-19)​

A17-W4-Mon (2026-06-15) — Merge C-104 + post-merge smoke

  • Done when: C-104 merged; smoke test re-run on dev.
  • Output: merge commit.
  • Verify: CI green.
  • Reviewer: Agent #4.
  • Depends on: A17-W3-Thu.

A17-W4-Tue (2026-06-16) — Prover latency baseline on multiple SKUs

  • Done when: latency measured on Pixel 7 + Samsung S22 + Redmi Note 13.
  • Output: contribution to docs/team/mobile/prover-latency-baseline.md.
  • Verify: numbers logged for 3 SKUs.
  • Reviewer: Agent #4.
  • Depends on: A17-W4-Mon.

A17-W4-Wed (2026-06-17) — BiometricPrompt + StrongBox wrap implementation (precursor C-144)

  • Done when: skeleton lands in mobile/app/src/main/kotlin/dev/zeroauth/keystore/.
  • Output: PR draft.
  • Verify: instrumented test asserts key created with setIsStrongBoxBacked(true).
  • Reviewer: Agents #4, #12, #27.
  • Depends on: A17-W4-Tue.

A17-W4-Thu (2026-06-18) — Sprint 1 prover sign-off

  • Done when: prover section of S1 exit gate green.
  • Output: row in docs/team/sprint-exits/s1-mobile.md.
  • Verify: C-104 merged; prover-latency baseline current.
  • Reviewer: Agent #4.
  • Depends on: A17-W4-Wed.

A17-W4-Fri (2026-06-19) — Sprint 2 self-plan + status post

  • Done when: sprint-2 daily tickets drafted (C-143 enrollment flow, C-144 keystore, C-146 e2e login).
  • Output: docs/team/mobile/a17-sprint-2-plan.md.
  • Verify: 5 daily tickets.
  • Reviewer: Agent #4.
  • Depends on: A17-W4-Thu.