# Annotation playground — quickstart The `/trekrevise` command and the `playground/voyage-playground.html` page let you annotate any voyage artifact (`brief.md`, `plan.md`, or `review.md`) and fold the annotations back in-place with a deterministic audit trail. This is **Handover 8** in `docs/HANDOVER-CONTRACTS.md`. For schema details, read that document first. ## Hands-on with the example fixture The plugin ships a canonical fixture at `tests/fixtures/annotation/annotation-example.md` that is the same shape an operator would annotate. Use it to verify your playground works before touching a real project. ## Seven steps from artifact to revised file 1. **Open the playground.** Open `plugins/voyage/playground/voyage-playground.html` in any modern browser. No build, no server, no network calls — the page ships vendored `markdown-it` and `highlight.js` under `playground/lib/`. 2. **Paste the artifact content.** Copy the full body of your `brief.md`, `plan.md`, or `review.md` (including frontmatter) into the textarea on the left. The right pane renders the markdown live. For larger artifacts you can also generate the rendered HTML offline with `node plugins/voyage/scripts/render-artifact.mjs --out /tmp/x.html`. 3. **Anchor a comment.** Drag-select text inside a paragraph, or hover a block-level element and click the anchor button that appears. The playground refuses anchors inside list items, mid-paragraph, or at line-start collision points — only block boundaries are valid (per the placement discipline in `lib/parsers/anchor-parser.mjs`). 4. **Fill the modal.** Choose an intent (`change`, `add`, `remove`, `clarify`, or `risk`), write your comment, save. Repeat for every anchor you want in this batch. The sidebar shows your batch growing as a critique-card-list. 5. **Export the batch.** Click "Eksporter batch". The playground copies a complete `/trekrevise --project --apply '{...JSON...}'` invocation to your clipboard. The JSON encodes every anchor, intent, and comment. 6. **Apply via `/trekrevise`.** Paste the command in your Claude Code chat. The command parses + validates the batch, atomically writes anchor comment blocks back into the source artifact, increments `revision:`, appends entries to `source_annotations:`, and recomputes `annotation_digest`. Body content outside anchor blocks remains byte-identical. 7. **Verify and iterate.** Re-open the revised file in the playground to see anchors as inline comment markers. If you want another revision pass, repeat from step 3 — each batch produces one `revision:` bump. Single-iteration MVP per research-05; multi-iteration loops are deferred.