# Work items — x11-session-research

## Phase 0 — substrate + research question framing

**Status: IN PROGRESS.** Substrate doc landed
(`phase0_findings.md`). Research question is provisional,
awaits operator confirmation. Pre-question Phase 0 deliverables
listed below are unblocked.

- [x] Predecessor close-out summarised. Substrate doc
  (`phase0_findings.md`) lists what stays valid from
  `kwin_overlay_subsurface`, what's specific to Wayland and
  doesn't transfer, and three plausible outcome shapes (α/β/γ)
  for the candidate research question.
- [ ] **Operator confirms the research question.** Three
  candidate framings + four alternates are listed in
  `phase0_findings.md` § "Research question (provisional)".
  Pick one (or correct the framing) before Phase 1.
- [ ] State snapshot of ohm under current Plasma Wayland —
  the campaign-start *before* photo. Unattended-tractable.
- [ ] Inventory of available X11 paths on ohm: installed
  packages, SDDM-advertised sessions, alternate WMs,
  XWayland availability. Read-only.
- [ ] Inventory of measurement instruments that work under
  X11. `xtrace`, frame-timing tooling, perf on Xorg PID, etc.
  Read-only.
- [ ] A1 baseline: 1× `kwin_timing_nodebug`-equivalent run
  on current Plasma Wayland session, captured into
  `phase0_evidence/wayland_baseline_rep1/`. Same-session
  anchor for any future X11 comparison.

## Phase 1 — locked research question + binding cells

**Pending operator confirmation of the Phase 0 question.**
Phase 1 lock will produce `phase1_lock.md` with binding cells
specific to whichever framing is locked.

## Phase 2-onwards

Pending.

## Discipline carry-overs from `kwin_overlay_subsurface`

- *Replicate the baseline first* — per
  `feedback_replicate_baseline_first.md`. Phase 0 task "A1
  baseline" exists specifically because of this lesson; do not
  skip it.
- *Phase discipline* — no patches before source-read is
  documented. Re-scoping must be honest about deferral target.
- *Non-upstreaming default* — bug reports + MRs are explicit
  operator-tasked decisions.
- *Memory persistence rule* — when this campaign reaches its
  diagnostic terminal state (success or honest closure), update
  `project_campaign_overview.md` and add any new feedback
  memory worth carrying forward to the next campaign.