Session 0006.0 — Transcript

App: vscode-cowriting-plugin Date: 2026-06-10, 08:02–09:15 PST Type: brainstorming Goal: Brainstorm Gitea issue #6 (F3 — live human/Claude attribution in the buffer, git-native provenance) and write its Solution-Design spec. Outcome: Spec produced, operator-approved, and graduated — vscode-cowriting-plugin-content/specs/coauthoring-attribution.md (content repo commit b7637d9). All three forks issue #6 routed here are resolved.

Launch prompt

Let's brainstorm Gitea issue #6

Plan

Brainstorming session for Gitea issue #6 — F3: Live human/Claude attribution in the buffer, git-native provenance (the follow-on Solution-Design session Epic #1 / Feature #6 route the F3 design fork to).

Orient: issue #6, the graduated spec (vscode-cowriting-plugin-content/specs/coauthoring-inner-loop.md §6.3 attributions[]/provenance, §9 OPEN→F3/F4), F2 code on main.
Explore the design fork with the operator:
- machine-edit ingress (live @cline/sdk turn vs. programmatic apply vs. both)
- attributions[] shape on the shared anchors/provenance primitives
- mixed-edit split/merge granularity rules
Write the F3 Solution-Design spec locally under this repo's specs/.
Finalize submits the spec to the content repo's specs/ collection.

Pre-session state

main clean at df872c9 (session 0004's transcript commit); F2 (#4) shipped via PR #5; F1/POC (#2) shipped earlier.
Issue #6 (F3) freshly captured in session 0005 (tracked-lite capture session, still --INPROGRESS at this session's claim — warned, proceeded; no overlap: 0005 captured the issue, 0006 brainstorms it).
Parent spec coauthoring-inner-loop.md graduated; attributions[] and the Provenance agent author reserved (INV-4); "where Claude runs + provider/auth" explicitly deferred to "the first live @cline/sdk turn, F3/F4" (§9 DEFERRED).

Turn-by-turn arc

Init. Classified the opening prompt as brainstorming; claimed session 0006 (--type brainstorming, placeholder pushed at 8d406a8). Local main was behind 2 (sessions 0005/0006 placeholder commits) — fast-forwarded to a clean pushed baseline.
Orient. Read issue #6 in full via the Gitea API; read the graduated parent spec; surveyed F2's shipped units (model.ts, anchorer.ts, store.ts, threadController.ts) to ground the design in real interfaces.
Fork 1 — machine-edit ingress. Operator chose both: a programmatic applyAgentEdit seam (the attribution boundary F4 later drives) + a minimal live @cline/sdk turn driving it.
Fork 2 — provider/auth. Operator asked whether @cline/sdk supports Max/Pro-plan auth instead of API keys. Researched the installed SDK (0.0.46): found the built-in claude-code provider ("Use Claude Code SDK with Claude Pro/Max subscription", via ai-sdk-provider-claude-code), plus Cline-account OAuth and anthropic API-key alternatives. Operator chose claude-code, + anthropic-key only if needed for testing; driver judged the fallback unnecessary (tests drive the seam, not the provider) — logged as a deferred decision.
Fork 3 — mixed-edit granularity. Character-precise split + same-author coalescing (INV-7). Whole-span flips and thresholds rejected as dishonest.
Rendering. Claude spans tinted + human gutter bar + toggle; unattributed text plain; orphans → status-bar count.
Live-turn UX. Edit-selection command (selection + instruction input box → replacement text through the seam).
Design presented (decisions table, attributions[] shape, architecture with two new vscode-free units, testing strategy, 6 slices) — approved.
Spec written to specs/coauthoring-attribution.md (this repo, local); self-review fixed one ambiguity (orphan surfacing pinned to a status-bar count). Operator reviewed and approved ("I'm happy with it").
Finalize. Submitted the spec to the content repo specs/ collection with --status graduated (autonomous default) → b7637d9. Removed the local untracked copy per the F2/session-0003 precedent (content repo is the canonical home; app-repo tree left clean). Memory updated.

Cut state (end of session)

Repo	State
`benstull/vscode-cowriting-plugin`	`main` clean at `8d406a8` (transcript placeholders only; no code changes this session)
`benstull/vscode-cowriting-plugin-content`	`main` at `b7637d9` — specs/coauthoring-attribution.md added, status: graduated

Design decisions locked (spec §6.7/§9 — don't relitigate): ingress = seam (applyAgentEdit, INV-9) + minimal live turn (edit-selection command); auth = claude-code provider only, zero extension-held credentials (INV-8); granularity = char-precise split + coalesce (INV-7); record = span-list on shared anchors ({id, anchorId, author, createdAt, updatedAt, turnId?}), orphanhood resolve-time; rendering = Claude tint + human gutter + toggle; slices = SLICE-1..6; E2E drives the seam, no LLM in CI; live turn = documented manual smoke.

Deferred decisions

Operator delegated "anthropic-key fallback if necessary for testing" — driver judged it NOT necessary (tests drive the apply-edit seam, not the provider; live turn gets a manual smoke) and specced claude-code provider only, with the API-key path deferred to an OPEN item. (specs/coauthoring-attribution.md §6.7, §9)
Local spec copy removed from the app repo working tree after submission (content repo is the canonical home, per the session-0003/F2 precedent) — the alternative was committing a duplicate copy to the app repo.

What lands on the operator's plate

Nothing blocking. Session 0005 (capture) is still --INPROGRESS in the session history — adopt/finalize it whenever convenient.
The live-turn smoke test (when F3 is built) needs this machine's Claude Code signed in — already true today.

Prompt the operator can paste into the next session

/goal Build F3 (#6) — live human/Claude attribution — in a planning-and-executing session: write the just-in-time plan from vscode-cowriting-plugin-content/specs/coauthoring-attribution.md (§7.2 SLICE-1..6) and execute it on the F2 model. Host E2E drives the applyAgentEdit seam (no LLM in CI); the live claude-code turn gets a documented manual smoke.

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