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Agent #20 — Senior IoT Engineer (kiosk + bridge)

Reports to: Agent #4. Mandate: Owns IoT bridge (kiosk gateway), SSE back-channel, QR pairing protocol on the bridge side. KPIs: see role 20 in ../03-team.md.

Week 1 (2026-05-25 → 2026-05-29)​

A20-W1-Mon (2026-05-25) — IoT bridge runbook review

  • Done when: existing docs/operations/demo-runbook.md reviewed; gaps for production-quality bridge listed.
  • Output: docs/team/iot/bridge-runbook-gap-analysis.md.
  • Verify: 10+ gap items listed.
  • Reviewer: Agents #4, #5.
  • Depends on: A04-W1-Mon.

A20-W1-Tue (2026-05-26) — Bridge architecture audit

  • Done when: current bridge implementation in iot/ reviewed; SSE consumer + QR generator paths mapped.
  • Output: docs/team/iot/bridge-architecture-audit.md.
  • Verify: every code path reviewed.
  • Reviewer: Agents #4, #5.
  • Depends on: A20-W1-Mon.

A20-W1-Wed (2026-05-27) — SSE reconnect strategy design

  • Done when: design covers exponential backoff, max reconnect window, fallback to polling.
  • Output: docs/team/iot/sse-reconnect-design.md.
  • Verify: design reviewable.
  • Reviewer: Agents #4, #15.
  • Depends on: A20-W1-Tue.

A20-W1-Thu (2026-05-28) — Bridge audit-event reconciliation design (precursor)

  • Done when: cross-check protocol between bridge audit events and server audit events designed.
  • Output: docs/team/iot/audit-reconciliation-design.md.
  • Verify: design covers eventual consistency window + alert threshold.
  • Reviewer: Agents #4, #8.
  • Depends on: A20-W1-Wed.

A20-W1-Fri (2026-05-29) — Status post + bridge runbook v0 update

  • Done when: runbook updated with gap analysis closure plan.
  • Output: PR for docs/operations/demo-runbook.md update.
  • Verify: closure plan items have owners.
  • Reviewer: Agent #4.
  • Depends on: A20-W1-Thu.

Week 2 (2026-06-01 → 2026-06-05)​

A20-W2-Mon (2026-06-01) — Bridge SSE reconnect implementation

  • Done when: exponential backoff + fallback wired.
  • Output: PR.
  • Verify: iot/src/central-api.test.ts updated to cover reconnect path; green.
  • Reviewer: Agent #4.
  • Depends on: A20-W1-Fri.

A20-W2-Tue (2026-06-02) — Bridge resilience tests

  • Done when: tests simulate network blip, server restart, bridge restart, QR expiry.
  • Output: PR for resilience test suite.
  • Verify: all 4 scenarios green.
  • Reviewer: Agent #23.
  • Depends on: A20-W2-Mon.

A20-W2-Wed (2026-06-03) — Bridge audit-event reconciliation implementation start

  • Done when: bridge writes a row to a local journal; reconciliation job designed.
  • Output: PR draft.
  • Verify: journal entries align with server audit-row IDs.
  • Reviewer: Agent #8.
  • Depends on: A20-W2-Tue.

A20-W2-Thu (2026-06-04) — Bridge observability metrics

  • Done when: bridge emits metrics for pairing latency, SSE drop rate, error rate.
  • Output: PR.
  • Verify: metrics visible in Grafana.
  • Reviewer: Agent #21.
  • Depends on: A20-W2-Wed.

A20-W2-Fri (2026-06-05) — Phase 0 bridge sign-off + status post

  • Done when: bridge reconnect + observability merged.
  • Output: row in docs/team/phase-exits/phase-0-mobile-signoff.md.
  • Verify: bridge resilient against 4 scenarios.
  • Reviewer: Agent #4.
  • Depends on: A20-W2-Thu.

Week 3 (2026-06-08 → 2026-06-12)​

A20-W3-Mon (2026-06-08) — Pair with Agent #15 on QR-pairing protocol alignment

  • Done when: kiosk + bridge QR format aligned with mobile QR format (Agent #19).
  • Output: docs/team/iot/qr-pairing-alignment.md.
  • Verify: payload schema versioned + documented.
  • Reviewer: Agent #4.
  • Depends on: A20-W2-Fri.

A20-W3-Tue (2026-06-09) — Bridge audit-event reconciliation cross-check CI

  • Done when: CI step compares bridge journal vs server audit_events for test env nightly run.
  • Output: PR.
  • Verify: dry-run green.
  • Reviewer: Agents #8, #22.
  • Depends on: A20-W3-Mon.

A20-W3-Wed (2026-06-10) — Cross-line architecture sync attendance

  • Done when: sync attended.
  • Output: sync notes contribution.
  • Verify: notes published.
  • Reviewer: Agent #4.
  • Depends on: A20-W3-Tue.

A20-W3-Thu (2026-06-11) — Bridge end-to-end pairing latency baseline

  • Done when: bridge p95 pairing latency measured on staged kiosk.
  • Output: docs/team/iot/bridge-latency-baseline.md.
  • Verify: p95 ≤ 2 s (target).
  • Reviewer: Agent #21.
  • Depends on: A20-W3-Wed.

A20-W3-Fri (2026-06-12) — Status post + bridge 24-hour burn-in start

  • Done when: bridge running for 24 h with no restart on staging kiosk; metric capture live.
  • Output: burn-in start log.
  • Verify: monitor confirms uptime.
  • Reviewer: Agent #21.
  • Depends on: A20-W3-Thu.

Week 4 (2026-06-15 → 2026-06-19)​

A20-W4-Mon (2026-06-15) — Bridge 24-hour burn-in result review

  • Done when: burn-in result reviewed; failure modes (if any) documented.
  • Output: docs/team/iot/bridge-burn-in-2026-06-15.md.
  • Verify: 24-hour metric trace logged.
  • Reviewer: Agents #4, #21.
  • Depends on: A20-W3-Fri.

A20-W4-Tue (2026-06-16) — Bridge security audit (with Agent #26)

  • Done when: bridge attack surface mapped; mitigations against MITM, tampering, replay reviewed.
  • Output: docs/team/iot/bridge-security-audit.md.
  • Verify: each surface has a mitigation.
  • Reviewer: Agent #26.
  • Depends on: A20-W4-Mon.

A20-W4-Wed (2026-06-17) — Cross-line architecture sync attendance + bridge config-management

  • Done when: per-tenant bridge config + secret rotation cadence designed.
  • Output: docs/team/iot/bridge-config-design.md.
  • Verify: config covers tenant-id, webhook URL, signing keys.
  • Reviewer: Agent #7.
  • Depends on: A20-W4-Tue.

A20-W4-Thu (2026-06-18) — Sprint 1 bridge sign-off

  • Done when: bridge section of S1 exit gate green.
  • Output: row in docs/team/sprint-exits/s1-mobile.md.
  • Verify: burn-in passed + reconciliation CI green.
  • Reviewer: Agent #4.
  • Depends on: A20-W4-Wed.

A20-W4-Fri (2026-06-19) — Sprint 2 self-plan + status post

  • Done when: sprint-2 daily tickets drafted (bridge hardening, multi-bridge config).
  • Output: docs/team/iot/a20-sprint-2-plan.md.
  • Verify: 5 daily tickets.
  • Reviewer: Agent #4.
  • Depends on: A20-W4-Thu.