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

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.
Explore the five design forks routed by #12, grounded in the actual F3 code.
Write the Solution Design (local draft; Mermaid; host-E2E tasks first-class; Claude Design vs Claude Code recorded).
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

Init. Claimed 0011 (--type brainstorming); clean pushed main baseline; anchor #12 is type/feature → R1 gate passes.
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.
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).
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).
Self-review passed (no placeholders; husk/stale semantics consistent; F3 E2E untouched by the propose-by-default flip).
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.

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