# Session 0003.0 — Transcript

> App: vscode-cowriting-plugin
> Start: 2026-06-10T00-24 (PST)
> End: 2026-06-10T01-20 (PST)
> Type: brainstorming
> Status: **FINALIZED**

## Launch prompt

"Start the next coauthoring feature" → after orienting on the tracker, redirected
to **brainstorming**: there is no Solution Design yet for the inner-loop
coauthoring model, and the next feature F2 (#4, region-anchored threads) sits on
its still-undesigned git-native persistence + anchoring model — which Epic #1
explicitly earmarks for a follow-on brainstorming session. Operator chose
"brainstorm the spec first."

**Session opened as planning-and-executing, re-stamped to brainstorming** after
the orientation made clear the reviewed artifact this session should produce is
the **spec**, not code. Output: `specs/coauthoring-inner-loop.md` (Solution
Design). F2 builds from it in a later session.

## Pre-state

- Came off session 0002 (POC #2 shipped, operator-confirmed via F5). `main` clean.
- Content repo `vscode-cowriting-plugin-content` initialized (issues/ + plans/),
  no `specs/` collection yet.
- Tracker: only Epic #1 (open) and F1/POC #2 (open). F2–F5 sketched in #1's
  decomposition, not filed.

## Arc

1. Session gate → opened **planning-and-executing**; claimed session 0003; clean
   pushed `main` baseline; org context already wired (0002).
2. **Tracker orientation** — read Epic #1 + #2 bodies. Confirmed the next feature
   is **F2 (region-anchored threads)**, not yet filed; #2 still open.
3. **Tracker housekeeping** (operator approved filing F2): filed **F2 → #4**
   (`type/feature`/`priority/P1`); commented + **closed #2**; updated Epic #1's
   decomposition (F1 checked, F2 → #4).
4. **The fork.** F2 sits on the still-undesigned git-native persistence + anchoring
   model, which Epic #1 earmarks for a follow-on **brainstorming** session, and
   there is no spec. Surfaced the choice (brainstorm spec first vs. build F2 with a
   provisional format). Operator chose **brainstorm the spec first** →
   **re-stamped session 0003 to brainstorming**.
5. **Brainstorming dialogue** (`superpowers:brainstorming`), one decision at a
   time — all four resolved by the operator:
   - **Depth** = threads-deep + model-wide skeleton (shared anchors/provenance;
     F3/F4 as accommodated extension points).
   - **Persistence** = `.threads/<path>.json` committed sidecar (not git notes /
     trailers).
   - **Anchoring** = hybrid (live offsets + durable content fingerprint; orphan
     fallback, never silently moved).
   - **Agent in F2** = none (no live `@cline/sdk` turn / no credentials; `agent`
     provenance author reserved for F3/F4).
6. Presented the consolidated design → operator approved.
7. Wrote the Solution Design `specs/coauthoring-inner-loop.md` (focused: §6 the
   meat — envelope, provenance primitive, hybrid anchoring, 5 invariants;
   §7 SLICE-1..5). Self-review passed; operator reviewed and **approved**.
8. **Finalize (brainstorming).** Base survey clean. Artifact guard ✓.
   `submit-spec.sh --status graduated` published the spec to the content repo
   `specs/` collection (`976fb48`) — the content repo's first `specs/` entry.

## Cut state

- **Spec graduated:** `vscode-cowriting-plugin-content/specs/coauthoring-inner-loop.md`
  (`status: graduated`), content repo `main` at `976fb48`. The reviewed input to
  building F2 (#4).
- **Code repo** `vscode-cowriting-plugin`: clean, in sync — **no code this
  session** (deliberate; F2 builds next session).
- **Tracker:** Epic #1 (open, F1 checked / F2 linked), F1/#2 (closed), **F2/#4
  (open, next)**.
- **§9 pipeline:** N/A — brainstorming produced a spec, nothing deployable.
- **Lineage not re-read:** `ben.stull/rfc-app#48`/`#46` live on the wiggleverse
  host and weren't reachable from `git.benstull.org` this session; Epic #1's
  distilled summary stood in. Noted in the spec's Source artifacts.

## Operator plate

- **Next session builds F2 (#4)** from the graduated spec (see next-session prompt).
- Repo visibility: both repos still **public** on Gitea (carried from 0001) —
  confirm if unintended.

## Next-session prompt

```
/goal Build F2 (#4) — region-anchored threads — in a planning-and-executing session: write the just-in-time plan from vscode-cowriting-plugin-content/specs/coauthoring-inner-loop.md (§7.2 SLICE-1..5: CoauthorStore → Anchorer → ThreadController via the Comments API → reload/external re-anchor → @vscode/test-electron E2E) and execute it. UI surface ⇒ E2E host tests are first-class plan tasks. No live @cline/sdk turn / no provider-auth in F2.
```

## Deferred decisions

- **Brainstorm-first vs. build-F2-directly (operator-resolved).** F2 sits on the
  undesigned shared model; rather than default a provisional format autonomously,
  surfaced the fork → operator chose **brainstorm the spec first**, redirecting the
  session type. No low-confidence autonomous calls were left unflagged. (Filing F2,
  closing #2, and editing Epic #1 were done with operator approval to file F2.)