MimironsGoldOMatic

Tier C — kick-off plan (Weeks 1–4)

Requirements: TIER_C_REQUIREMENTS.md · Task board: TIER_C_IMPLEMENTATION_TASKS.md · Tier B handover: TIER_B_HANDOVER.md · Project structure: docs/reference/PROJECT_STRUCTURE.md

This plan turns Tier C requirements into a 4‑week execution cadence while keeping Tier A + Tier B PR CI stable.

Tier A + Tier B remain functional on PRs to main (.github/workflows/e2e-test.yml).
Tier C jobs are optional until they are proven stable (prefer workflow_dispatch and/or schedule behind policy).
No secrets in logs/artifacts; staging Twitch jobs must use GitHub Environments and never run on fork PRs.

Role	Needed for	Named owner
Backend / CI owner	Tier C workflow design, harness/logging, staging jobs	Anatoly Ivanov (`ai.vibeqodez@vk.com`)
Desktop / WinAPI owner	Windows runner + Desktop parity + log tail constraints	Anatoly Ivanov (`ai.vibeqodez@vk.com`)
Addon owner	`[MGM_*]` contract tests + log formats	Anatoly Ivanov (`ai.vibeqodez@vk.com`)

Infrastructure prerequisites (as decisions):

Self-hosted Windows runner capacity (or manual operator machine)
Optional staging Twitch app + test channel access (via Environment‑gated secrets)

Planned start date: 2026-04-13 (Mon) Planned end date: 2026-05-08 (Fri)

Owners: see Resource requirements (Section 2).

Milestone: M‑C0 (prioritization locked)
Dates: 2026-04-13 → 2026-04-17
Owner: Anatoly Ivanov
Deliverables:
- Decision on Tier C primary track (Windows E2E vs staging Twitch vs addon tests) (C0-01)
- CI cost/concurrency policy (C0-02)
- Draft Windows E2E setup plan (C0-03)
- Draft staging Twitch Environment plan (C0-04)

Milestone: M‑C1 (runner/env spec approved)
Dates: 2026-04-20 → 2026-04-24
Owner: Anatoly Ivanov
Deliverables (depending on C0 decision):
- Self-hosted runner smoke workflow (no secrets) proving the runner works (C1-01 prerequisite slice)
- GitHub Environment(s) created + documented (names, rules) (C1-02)

Milestone: M‑C2 (first vertical slice green)
Dates: 2026-04-27 → 2026-05-01
Owner: Anatoly Ivanov
Candidate slices (choose one):
- Windows slice: real Desktop log tail contract or controlled log replay (no WoW required on day 1)
- Staging Helix slice: Environment‑gated workflow_dispatch that posts one message to a test channel and stores only non-sensitive evidence (C2-04)
- Addon slice: expand contract tests for [MGM_*] tags (C2-03)

Milestone: M‑C3 (parity + flake budget)
Dates: 2026-05-04 → 2026-05-08
Owner: Anatoly Ivanov
Deliverables:
- Flake budget + retry policy documented and applied (C3-01)
- Structured harness logs + correlation conventions (C3-02)
- Parity plan for Desktop vs SyntheticDesktop (if Windows track chosen) (C2-02)

Risk	Mitigation
WinAPI / UI timing flake	Keep Tier B mocks as PR gate; Tier C as nightly/manual until stable.
Token leakage	Environments + masking; avoid printing headers; artifact redaction rules.
CI minute overrun	Concurrency, optional Tier C triggers, and explicit policy (C0-02).
Debuggability gaps	Always-on artifacts and a troubleshooting matrix, mirroring Tier B practice.

Risk	Action	Owner	Due
Token leakage	Define Environment protection rules + “no forks” policy	Anatoly Ivanov	2026-04-17
WinAPI flake	Keep Tier C jobs optional until 5 consecutive green runs	Anatoly Ivanov	2026-05-08
CI minutes	Document Tier C trigger policy (nightly/dispatch only)	Anatoly Ivanov	2026-04-17
Debuggability gaps	Require artifact bundle for Tier C jobs mirroring Tier B	Anatoly Ivanov	2026-05-01

Tier C requirements: TIER_C_REQUIREMENTS.md
Tier C tasks: TIER_C_IMPLEMENTATION_TASKS.md
Tier B operations/handover: TIER_B_HANDOVER.md, TIER_B_MAINTENANCE_CHECKLIST.md
Tier B retrospective: TIER_B_HANDOVER.md → Retrospective Summary & Lessons Learned
Repo structure: docs/reference/PROJECT_STRUCTURE.md