# Manual smoke — F10 interactive review in the preview (#29) F10 makes the rendered preview the **single interactive review surface**: the editor is clean (zero annotations), and you accept/reject Claude's proposals *inside the preview*. The webview's *visual* rendering (theming, ✓/✗ buttons) is verified here, not in the automated host E2E (the webview is a sealed sandbox). Run once per change that touches F10. One live turn hits the SDK (or use the `proposeAgentEdit` seam to stay key-free). ## Setup 1. `npm run build` 2. Launch the Extension Development Host (F5 in VS Code, or the Run panel) with `sandbox/` open. 3. Open a markdown document containing some prose (e.g. copy `test/e2e/fixtures/workspace/docs/preview.md`). ## Steps 1. **Clean editor.** Look at the source editor: there is **no attribution tint, no in-editor proposal comment threads, and no diff** — the editor is a plain text buffer (F10/INV-32). All review lives in the preview. 2. **Open the preview.** Run **"Cowriting: Open Review Preview"** (or `Ctrl+Alt+R`). A preview opens beside the editor. The header shows an **Annotations** switch (on by default) and a summary. 3. **Edit prose.** In the source editor, change a word in a paragraph. The preview updates (≈150 ms) in its on-state: the new word highlighted as a green insertion (`` / `cw-by-human`), the old word struck (`` / `cw-del`); the summary increments. Your own typing is colored green (human). 4. **Ask Claude to edit a selection.** Select a sentence → **"Ask Claude to Edit Selection"** → instruct (or invoke the `proposeAgentEdit` seam). A **blue `cw-proposal` block** appears in the preview, showing the struck replaced text and the proposed replacement, with **✓ / ✗** buttons in a `cw-actions` span. The editor itself does **not** change (INV-10 — propose never mutates the doc). 5. **Accept one.** Click **✓** on the proposal. Expect: the replacement **lands in the document** (the editor text updates), the proposal block **clears** from the preview, and the landed Claude text is **not** marked as a change (the baseline advanced past the landing; INV-18). 6. **Reject another.** Propose a second edit, then click **✗** on it. Expect: the block **vanishes** from the preview and the **document is unchanged**. 7. **Toggle Annotations off.** Flip the header **Annotations** switch off. Expect: the preview shows **clean rendered markdown** — no green/blue author colors, no struck deletions, no proposal blocks (INV-33). Flip it **on** again: the marks and any pending proposal blocks return. 8. **Status-bar indicator (PUC-6).** Close the preview. With a **pending proposal** outstanding and **no preview open**, a status-bar item shows the pending count (e.g. "1 Claude proposal"). **Click it** — the review preview opens and the indicator disappears. 9. **Theme.** Toggle light / dark / high-contrast (`Ctrl+K Ctrl+T`). The proposal block and its ✓ / ✗ buttons, and the green/blue author colors, restyle to the theme and stay legible in each. 10. **Cleanliness.** `git status` shows nothing written to the document, sidecar, or repo by the preview (INV-20). ## Pass criteria All ten steps behave as described; no console errors in the webview devtools; the editor stays decoration-free throughout; nothing is persisted by the preview.