Session 0037.0 — Transcript

App: vscode-cowriting-plugin Start: 2026-06-12T13-33 (PST) End: 2026-06-12T14-22 (PST) Type: planning-and-executing Posture: autonomous (yolo) Status: FINALIZED.

Outcome: F11 (#43) shipped to main via PR #44. The rendered review preview's header toolbar is now the primary interaction surface — Pin baseline + a single adaptive Ask-Claude button (Edit Selection ⇆ Edit Document) routing through the existing F4/F6/F3 machinery, block-level selection→source mapping, document edits diffed into per-hunk proposals, an editor/title gateway, and the unhidden pinDiffBaseline. 208 unit + 9/9 F11 host E2E green. Issue #43 closed; branch deleted; plan archived to the content repo.

Launch prompt

plan-and-execute #43 (F11), per specs/2026-06-12-f11-preview-toolbar-interaction-surface.md. Start with SLICE-1 (Pin baseline button + unhide pinDiffBaseline) — the immediate win.

Plan

Plan-and-execute F11 (#43) — preview toolbar as the primary interaction surface — per docs/superpowers/specs/2026-06-12-f11-preview-toolbar-interaction-surface.md. Implementation plan archived at docs/superpowers/plans/2026-06-12-f11-preview-toolbar.md. Posture: autonomous (yolo). Branch f11-preview-toolbar.

Five slices (spec §7.2), each green (unit + host E2E) before the next:

SLICE-1 — Pin baseline button + reachability (this session's lead — the immediate win): webview Pin button → {pinBaseline} → host DiffViewController.pin(previewedDoc); unhide cowriting.pinDiffBaseline (when: editorLangId == markdown).
SLICE-2 — Block-offset emission (INV-36 data layer): pure data-src-start/end on every block, both render modes.
SLICE-3 — Edit Document + hunk path (INV-37 doc half): diffToHunks, runEditAndPropose, cowriting.editDocument.
SLICE-4 — Adaptive Edit Selection (INV-37 selection half): selectionchange label flip + selection→data-src resolution → single-range propose.
SLICE-5 — Gateway, edges, tests & docs: editor/title gateway, non-authorable disabling, MANUAL-SMOKE-F11.md, README.

Session arc

Pre-state: clean main at b2de25f (after a fast-forward of 2; the F11 spec had just graduated in session 0036). #43 = type/feature with a graduated Solution Design → eligible planning-and-executing anchor (R2/R3).

Claim + setup. Session gate → wgl-planning-and-executing; claimed ID 0037 (no concurrent sessions). Read the F11 spec (found at docs/superpowers/specs/, not specs/). Wrote the implementation plan (docs/superpowers/plans/2026-06-12-f11-preview-toolbar.md), branched f11-preview-toolbar. Baseline 197 unit green.
SLICE-1 (commit 8b9e61a). TDD: failing E2E (receiveMessage seam absent) → extracted handleWebviewMessage, added the pinBaseline intent → DiffViewController.pin(previewedDoc), the Pin button, theme CSS, unhid pinDiffBaseline. Discovered the undoMarks E2E flakes (passed on re-run).
SLICE-2 (1ef9451). Pure srcAttr helper threaded through renderOp / renderReviewOp / renderReview; renderPlain switched to per-block bare divs. data-src on every live block in both modes; removed/proposal blocks carry none.
SLICE-3 (0d1a563). Pure diffToHunks (word-level, coalescing); host runEditAndPropose + injectable editTurn/setEditTurnForTest; the askClaude message + cowriting.editDocument; Edit Document button.
SLICE-4 (03b61ed). Webview adaptive label (selectionchange) + nearestSrc/selectionSrcRange block-union mapping; host range branch (already shared from SLICE-3). E2E for the selection path.
SLICE-5 (1564ef5). editor/title gateway; authorable render flag + editControlsEnabled seam + webview disable; MANUAL-SMOKE-F11.md; README.
Self code review (subagent) → fixes (47cc733). Caught a Critical: pure-insertion hunks were born-orphaned (verified against anchorer.resolve). Fixed with anchorInsertion; added reconstruct + accept-all E2E coverage; added turnId; documented the renderPlain cross-block tradeoff + a characterization test. Ran the isolation experiment proving the undoMarks flake is F11-independent.
Ship. Pushed; PR #44 (Gitea API) → merged to main (62a2229); #43 commented + closed; branch deleted; 208 unit green on main.

Cut state: on main, clean, fully pushed. The only red in the host E2E suite is the pre-existing undoMarks flake (see Deferred decisions); all 9 F11 E2E + 208 unit are green.

Next /goal

/goal plan-and-execute #42 then #41 (now unblocked by F11) — expand the right-click menu sets into the preview (Ask Claude to Edit + Open Review Panel), per spec §6.7 fork 3; first capture the pre-existing undoMarks E2E flake as a follow-up bug.

Deferred decisions

Autonomous-mode low-confidence calls the driver made and would have liked operator input on. Appended as the session runs; surfaced at finalize. Empty if none.

Pre-existing E2E flake — PROVEN F11-independent, recommend a follow-up issue: undoMarks.test.ts ("F10 #38 — undo of a deletion of baseline text leaves it unattributed") fails on executeCommand("undo") not reverting the applyEdit-applied changes. Early in the session it failed ~1/3 (passing on re-run); later in the session it failed consistently (machine-load sensitive). Isolation experiment: removed all F11 tests, clean rebuild → the undo test still fails identically (44 passing, same undo restored 'bravo' at the same line). So it is NOT caused/aggravated by F11 — F11 touches only preview message routing + the pure render layer. Tried a focus+single-undo+poll hardening; it did NOT fix this run (root cause is undo not reverting programmatic WorkspaceEdits in test-electron, not mere timing), so I reverted it to keep the F11 PR scoped. Recommend a dedicated follow-up issue: redesign the undo test to not depend on executeCommand("undo") over applyEdit (e.g. drive the attribution branch directly, or type real edits). All 9 F11 E2E tests are green.
SLICE-2 off-mode wrapping (autonomous call): renderPlain now wraps each block in a bare <div data-src-start/end> (no cw- class) rather than rendering the whole document in one markdown pass. This makes the off/clean preview a selection→source surface (INV-36) and matches renderReview's long-standing per-block rendering. Trade-off (raised in code review): cross-block markdown constructs separated by blank lines (reference-link defs, footnotes) don't resolve in off-mode — a regression for off-mode specifically, but it makes both modes consistent (on-mode already had it). Inherent to the operator-locked block-level mapping (§6.7). Kept per INV-36 ("both modes"); documented with a docstring note + a characterization test. A cross-block-fidelity improvement (markdown-it source maps) is a possible follow-up, not a change to the locked decision.
Code review run (self, via subagent) before merge: found 1 Critical (pure- insertion hunks born-orphaned — could never be accepted), 2 Important (the cross-block renderPlain regression above; sequential multi-hunk accept untested), 3 Minor (no turnId; test-seam recompute; webview disable not auto-tested). Fixed the Critical (anchorInsertion + reconstruct/accept-all tests), the turnId, and added accept-all + characterization coverage; accepted/documented the cross-block tradeoff. Commit 47cc733.

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