Session 0015.0 — Transcript

App: vscode-cowriting-plugin Start: 2026-06-10T22-37 (PST) · End: 2026-06-10T23-29 (PST) Type: planning-and-executing Driver: Claude (Opus 4.8) · Operator: Ben Stull Posture: autonomous (yolo, default)

Launch prompt

Implement Feature #14 (F5 cross-rung format + round-trip) per the graduated spec vscode-cowriting-plugin-content/specs/coauthoring-cross-rung-format.md — plan just-in-time from its §7.2 slices, then execute; done = contract + schema published, unit + host E2E green (round-trip, merge, fail-safe, unknown-field preservation all exercised).

Pre-state

main clean and pushed; F4 (#12) shipped in session 0012; F5 spec graduated in session 0014 (coauthoring-cross-rung-format.md, all six forks resolved).
Anchor: Feature #14 with an approved Solution Design — R2/R3 gate satisfied.
No other sessions in flight (claim peek clean).

Plan

Full plan: docs/superpowers/plans/2026-06-10-f5-cross-rung-format.md (13 tasks; archived to content plans/ at finalize). Slices → tasks:

SLICE-1 (T1–T3): ajv devDep; schemas/coauthoring-sidecar.schema.json + scripts/validate-sidecar.mjs + schema unit suite; contract doc specs/coauthoring-sidecar-contract.md in the content repo (INV-14).
SLICE-2 (T4–T8): Provenance email/agent.onBehalfOf; serializer unknown-field preservation (INV-15); isNewerMajor + store write-refusal backstop; gitUserEmail identity helper; VersionGuard read-only gating across all three controllers (INV-16, PUC-4).
SLICE-3 (T9): pure mergeArtifacts + unit tests of every documented case (INV-17).
SLICE-4 (T10–T11): scripts/crossrung-reply.mjs stand-in + byte-fidelity unit test; host E2E round-trip (PUC-2) + newer-major fail-safe (PUC-4).
SLICE-5 (T12–T13): README pointers; full gate; PR + merge.

Execution mode: inline (superpowers:executing-plans).

Session arc

Init — claimed 0015; baseline verified clean (main == origin/main after pulling our own claim commit); spec read end-to-end; codebase surveyed (model/store/controllers/E2E idioms).
Plan — just-in-time plan written from spec §7.2 (13 TDD tasks).
SLICE-1 — ajv devDep (0ddeaba); JSON Schema 2020-12 + ajv validator script + expectValidSidecar test helper, schema suite green (7c4d3ed); contract v1.0 published to content repo (specs/coauthoring-sidecar-contract.md, 856553a, pushed) — normative, status living, with serialization rules, field tables, INV-15/16 compatibility rules, INV-17 merge rules, conforming-writer checklist, changelog.
SLICE-2 — Provenance email + agent.onBehalfOf w/ optional-omission (da172a3); withUnknowns() unknown-field preservation at every serializer level, byte-stable (a6b16f0); isNewerMajor + CoauthorStore.update INV-16 throw backstop (746071a); gitUserEmail (vscode-free, exec git config, fail-open, cached) wired into both controllers' currentAuthor() (ef4ec8d); VersionGuard shared across the three controllers, gating every write gesture, one warning per doc, exposed on CowritingApi (ef7d940).
SLICE-3 — mergeArtifacts pure reference implementation: union-by-id, thread shell/messages split, updatedAt-then-lexicographic resolution, conflicts surfaced, differing-major throw (452f5d1). One test-expectation fix mid-task: the divergent-message test asserted a human-intuitive winner; the deterministic tie-break legitimately picks the other side — corrected to assert determinism + symmetry.
SLICE-4 — crossrung-reply.mjs stand-in (self-contained foreign writer; independent contract serialization; validates before/after; refuses newer majors) with byte-fidelity unit test vs the reference serializer — passed first try (e0c127c); host E2E: editor thread → stand-in reply (ELECTRON_RUN_AS_NODE) → external-change → message renders at re-resolved anchor (PUC-2); v2 sidecar → warning + bytes untouched through edit/save (PUC-4) (5de59fd).
SLICE-5 + ship — README cross-rung section (abb9c88); full gate green: typecheck · 98/98 vitest · build · 18+3 host E2E. Pushed, PR #15 created via Gitea API and merged (4651410); issue #14 auto-closed; branch deleted.
Operator play feedback — operator hit the dead "Reply…" input on a proposal thread (no submit command wired for cowriting.proposals). Answered (proposals are decide-only, INV-12; discussion = coauthoring thread) and fixed: canReply=false + test-facing RenderedProposal.canReply
- E2E assertion; gate green; PR #16 merged (611a180).
Operator question (open) — "show the operator's changes better from a diff perspective; easy toggle current ↔ diff view?" Answered with today's options (git Open Changes/gutter; F4 proposal diffs; attribution toggle) and named the gap: attribution is state-not-history, so a my-changes diff needs a baseline snapshot + virtual doc provider + toggle command. Offered to capture as a Feature issue; no answer at finalize — recorded in memory as the open idea.
Finalize (goal hook fired on achievement) — plan archived to content plans/2026-06-10-f5-cross-rung-format.md (57f5827); memory f5-cross-rung-shipped.md written + indexed; this transcript published.

Cut state

Plugin repo main @ 611a180 (PR #15 + #16 merged), pushed, no open PRs. Working tree clean except sandbox/playground.md (operator's play scratch — deliberately untouched).
Content repo main @ 57f5827 (contract + archived plan), pushed. Untracked issues/*.md capture drafts predate this session (Author's).
Issue #14 closed. Epic #1 fully shipped (F2 · F3 · F4 · F5).
Pipeline (§9): VS Code extension — no deploy stage/PPE/browser surface; the app's required tier is host E2E, run green. Nothing deferred.

Deferred decisions

Inline execution chosen over subagent-driven (tasks share heavy model.ts/serializer context; single coherent feature).
Thread-shell divergence rule: lexicographically-larger stable-stringify (makes "resolved" beat "open" deterministically) — documented in the contract; revisit at team rung if too naive.
INV-15 implemented at the serializer level only (spec §6.2 wording); controller record-rebuild paths own their records.
Stand-in writer deliberately re-implements contract serialization (executable documentation); byte-fidelity unit test is the drift tripwire.
Merge tie-break is deterministic but not human-intuitive (lexicographic on stable-stringify); the divergent-message test was corrected to assert determinism + symmetry rather than a particular winner.
Diff-view feature idea NOT filed as an issue (operator hadn't confirmed); recorded in memory instead.

Operator plate

Reload the extension dev host to pick up the PR #16 fix (rebuild first if not running npm run watch).
Decide on the diff-view toggle idea: capture as a Feature issue, or drop.
sandbox/playground.md left dirty for you.

Next-session prompt

/goal Open a capture session for the diff-view toggle feature (operator's own changes as a toggleable diff vs a turn/accept baseline — sketch in memory f5-cross-rung-shipped), filing it as a typed Feature issue on benstull/vscode-cowriting-plugin

(Alternative frontier: the rfc-app#46 Gitea-substrate brainstorming — different repo — which consumes the F5 contract as its input.)

7.4 KiB Raw Blame History Unescape Escape