# Session 0011.0 — Transcript

> App: vscode-cowriting-plugin
> Start: 2026-06-10T21-41 (PST) · End: 2026-06-10T21-52 (PST)
> Type: brainstorming
> Goal: spec Feature #12 (F4 — propose/accept) — leg 2 of the `/goal F4` arc
> (session 0010 captured #12; this session designs it).
> Outcome: **Solution Design graduated** — content
> `specs/coauthoring-propose-accept.md` (`c55a681`); all five design forks
> resolved.

## Launch prompt

```
Brainstorm the Solution Design spec for Feature #12 (F4 — propose/accept diff flow: inline diff + keep/reject on the applyAgentEdit seam) on benstull/vscode-cowriting-plugin, resolving the five design forks routed there by the capture (proposals[] shape; rendering primitive; propose-by-default vs. direct mode; multi-range seam growth; accept/reject granularity), then graduate it to vscode-cowriting-plugin-content/specs/. (Continuation of /goal F4, session 0010 capture → this spec session.)
```

## Plan

1. Orient: anchor Feature #12 (non-epic — R1 gate passes); inputs = the F3/F2
   graduated specs (`coauthoring-attribution.md`, `coauthoring-inner-loop.md`),
   the shipped F3 code (seam, store, anchorer, decorations), Epic #1, the F2/F3
   spec precedents as templates. No BDD corpus registered for this app.
2. Explore the five design forks routed by #12, grounded in the actual F3 code.
3. Write the Solution Design (local draft; Mermaid; host-E2E tasks first-class;
   Claude Design vs Claude Code recorded).
4. Finalize via wgl-session-finalize (brainstorming addendum): artifact guard →
   submit-spec.sh → content `specs/` (autonomous → `--status graduated`).

## Pre-session state

Clean pushed `main` (`f21a6fd` after this session's claim). Feature #12 freshly
filed by session 0010 (same conversation). F3 shipped (#6, PR #7) with the
`applyAgentEdit` seam as the single machine-edit ingress and `proposals:
unknown[]` reserved in the sidecar at `SCHEMA_VERSION` 1.

## Turn-by-turn arc

1. **Init.** Claimed 0011 (`--type brainstorming`); clean pushed `main`
   baseline; anchor #12 is `type/feature` → R1 gate passes.
2. **Context.** Explore-agent map of the shipped F3 machinery (model.ts
   `proposals: unknown[]` reserved at SCHEMA_VERSION 1; `applyAgentEdit`
   signature/behavior incl. version guard + diff-minimize + pending-edit
   consume; store prune TODO at store.ts:65; Anchorer ladder; decorations +
   Comments API patterns; liveTurn flow with the exact proposal insertion
   point between turn completion and seam call; E2E ingress patterns). Read
   the F3 spec end-to-end as the structural template.
3. **Forks resolved** (full alternatives in spec §6.7): (a) `proposals[]`
   pending-only on shared anchors/Provenance; (b) rendering = second Comments
   controller (fenced-diff thread + ✓/✗ actions) + amber range decoration;
   (c) propose-by-default wholesale, no user-facing direct mode, seam
   unchanged as accept path; (d) seam stays single-range — N proposals per
   turnId; (e) whole-proposal granularity, hunk-splitting additive later.
   Bonus: staleness guard = the existing fingerprint exact-text resolve at
   decision time (INV-11); persistence at propose time (paid-turn loss
   argument).
4. **Spec written** locally
   (`docs/superpowers/specs/2026-06-10-f4-propose-accept-design.md`). New
   invariants INV-10..13; 5 slices; host E2E first-class;
   Claude-Code-not-Claude-Design recorded in §5 (native surfaces only).
5. **Self-review** passed (no placeholders; husk/stale semantics consistent;
   F3 E2E untouched by the propose-by-default flip).
6. **Finalize.** Artifact guard satisfied; submitted graduated as content
   `specs/coauthoring-propose-accept.md` (`c55a681`); local draft removed (F3
   precedent: content copy is canonical, no local spec in the plugin repo);
   local content clone fast-forwarded; memory updated
   (`f4-propose-accept-spec-graduated` + index; stale Next /goal in the F3
   memory redirected).

## Deferred decisions

- **Skipped interactive section-by-section design review** (superpowers
  brainstorming gates) under autonomous posture + the standing `/goal F4`
  directive; the spec graduated without operator review per the autonomous
  default (`submit-spec.sh --status graduated`). The operator can downgrade /
  amend post-hoc; all five fork resolutions are logged with alternatives in
  §6.7.
- **No user-facing direct-apply mode retained** (fork c) — chose the wholesale
  propose-by-default flip on YAGNI grounds; if review friction shows up in
  practice, a `cowriting.machineEdits` setting is a small follow-up.
- **Proposal counter-edits** (human amends proposed text before accepting)
  deferred to OPEN→later — today's answer is reject + re-instruct; flagged in
  spec §9 rather than designed now.

## Cut state (end of session)

| Item | State |
| --- | --- |
| Spec `coauthoring-propose-accept.md` | **Graduated** in content repo at `c55a681` |
| Plugin repo `main` | Clean, pushed (no code changes this session) |
| Content repo working tree | Two pre-existing uncommitted issue drafts (`f3-live-attribution.md`, `f4-propose-accept.md`) — Author's plate, unchanged |
| Feature #12 | Open, now spec-backed — eligible R2 anchor for planning-and-executing |
| Memory | `f4-propose-accept-spec-graduated` written; carries the current Next /goal |

## What lands on the operator's plate

- Review the graduated spec at
  `vscode-cowriting-plugin-content/specs/coauthoring-propose-accept.md` — it
  graduated without interactive review (autonomous posture); §6.7 + §9 hold
  every fork resolution and alternative if anything warrants re-litigating.
- The two uncommitted content-repo issue drafts remain yours to publish or
  discard.

## Prompt the operator can paste into the next session

```
/goal Implement Feature #12 (F4 propose/accept) per the graduated spec vscode-cowriting-plugin-content/specs/coauthoring-propose-accept.md — plan just-in-time from its §7.2 slices, then execute; done = unit + host E2E green and the live smoke shows propose → accept → Claude-attributed.
```