# Session 0003.0 — Transcript > App: human-experience-filter-art > Start: 2026-06-04T07-57 (PST) > End: 2026-06-05T03-36 (PST) > Type: discovery > Status: **FINALIZED** ## Launch prompt > We should create a simulator, just something that is web-based, potentially that > runs on localhost, running in a Docker container. It allows us to play virtually > with the dials and see the content that has been curated, and then we can get to > the actual physical stack. I think we want to make sure that we have the > principles well done and the interface figured out, and then the middle will come > in to play. ## Plan Discovery session: explore the proposed **web experience simulator** and produce its first artifacts — BDD scenarios and/or a spec — plus (chosen mid-session) an implementation plan. Orientation: ``` /goal Discover the web-based experience simulator — produce BDD scenarios and/or a spec, per human-experience-filter-art/docs/ROADMAP.md ``` ## Pre-session state - `main` clean and pushed at `b7f19e0`. Sub-projects 1 (catalog/selection) and 2 (ingest/review) shipped; physical stack (3 Pi player, 4 firmware) ahead. - `catalog/library.jsonl` empty (0 bytes) — tooling exists, no media ingested. - No prior simulator artifacts. Memory pointed at sub-project 3 as next. ## Turn-by-turn arc 1. **Session gate / routing.** Opening prompt straddled coding vs. discovery; asked the operator → **discovery**. Ran `wgl-discovery-session-init`: claimed ID **0003** (`--type discovery`), verified clean pushed `main`, read memory, oriented from `docs/ROADMAP.md`. 2. **Brainstorming.** Accepted the visual companion (server on :61057). Settled scope via one-at-a-time questions: - Primary purpose → **feel the selection model** (curator's instrument). - Catalog source → **synthetic fixture catalog** (real catalog is empty). - Screen layout (browser mockups A/B/C) → **B · Curator's X-ray** (full transparency: pick + ranked pool + distances + brain/mood grid maps). - Approved the **additive `hef.selection.ranked_candidates()`** change. - **Include** the model knobs (weights, pool size, approved-only). 3. **Architecture.** Chose **Approach 1** — FastAPI + vanilla-JS, real `hef.selection` as single source of truth; Docker on localhost. 4. **Artifacts written + committed** (`76a9526`): design spec `docs/superpowers/specs/2026-06-04-experience-simulator-design.md` + 4 BDD feature files under `features/`. Self-reviewed; fixed the pick-determinism ambiguity (deterministic `rng=None` pick; pool = the room's shuffle-set). Operator approved the spec. 5. **Implementation plan** (chose "draft the plan now"): wrote `docs/superpowers/plans/2026-06-04-experience-simulator.md` — 7 bite-sized TDD tasks; self-reviewed for spec coverage / placeholders / type consistency. Committed (`e7ab227`). 6. **Memory + handoff.** Saved resume pointer `experience-simulator-ready-to-build.md` (+ MEMORY.md index) so the next coding session auto-surfaces the `/executing-plans` line. 7. **Finalize.** Push raced twice against concurrent session-claim commits (0003 then 0004); rebased onto each (disjoint paths, non-destructive) and pushed. ## Cut state (end of session) - `main` synced with origin. Discovery artifacts landed: - spec `40d7434`→`9cb4fb6` (rebased): `docs/superpowers/specs/2026-06-04-experience-simulator-design.md` + `features/*.feature` - plan `19a2dbc`→`ddec45d` (rebased): `docs/superpowers/plans/2026-06-04-experience-simulator.md` - Final `main` tip: **`ddec45d`**. - No code written this session (discovery only). Test suite untouched (baseline 111 passed / 2 skipped). - Visual-companion files persist under `.superpowers/brainstorm/` (gitignored). ## What lands on the operator's plate - **Build is queued, not started.** The simulator exists only as spec + BDDs + plan. Next session executes the plan. - **Structural gap (flagged, not blocking):** this app's `app.json` has no `contains:["bdd"]` or `contains:["spec-rfc"]` repo, so there is no external corpus/spec-RFC target — the discovery artifacts live in-repo (committed) by design. If a dedicated BDD/spec-RFC repo is ever wanted, register it in `app.json`. - **Concurrent session 0004** was claimed during this finalize and may still be in flight. - No deferred (low-confidence autonomous) decisions this session. ## Prompt the operator can paste into the next session ``` /goal Build the experience simulator — execute the plan task-by-task: /executing-plans docs/superpowers/plans/2026-06-04-experience-simulator.md ``` Read `memory/experience-simulator-ready-to-build.md` first. The plan recommends subagent-driven execution with review between tasks; the only shipped-code change is the additive `hef.selection.ranked_candidates()` (Task 1).