FableCut video editor: ensure the editor web server is running (auto-starts it), and get the editor URL, project summary and media library. Call this first in a session.

Return the FableCut project schema documentation: clips, tracks, props, keyframe animation, transitions, and editing recipes. Read this before editing. TOKEN TIP: pass section to fetch only the '## …' section(s) you need (substring match, e.g. "props", "Recipes", "Remake") instead of the whole manual.

Get the FableCut project (the timeline document). TOKEN TIP: pass compact:true for a one-line-per-clip summary (ids, tracks, timings, non-default props) — usually all you need to plan an edit; fetch the full JSON only when you must inspect exact keyframes.

Apply targeted edits to the FableCut project WITHOUT round-tripping the whole document — PREFER THIS over get+set for every edit (it is ~10-100x cheaper in tokens and merge-safe by design: it re-reads the latest document from disk, applies your ops in order, bumps revision once, saves atomically). Ops: {op:'addClip', clip:{…}} (id auto-generated if omitted) · {op:'updateClip', id, set:{…}} · {op:'removeClip', id} · {op:'addMedia', media:{…}} · {op:'removeMedia', id} · {op:'setProject', set:{name|width|height|fps|background|markers|disabledTracks}}. updateClip merge rules: top-level keys are replaced (keyframes/transitionIn/transitionOut wholesale), props merges key-by-key, and setting any key to null deletes it. All-or-nothing: an invalid op aborts the whole patch unsaved.

Replace the FableCut project JSON. Pass the COMPLETE document (read with fablecut_get_project, modify, send back whole). Revision is auto-bumped; the open editor UI hot-reloads instantly so the user sees the edit live. CONFLICT-SAFE: if the project changed on disk since your last fablecut_get_project (e.g. the user tweaked something in the UI), the call errors instead of overwriting — re-read, re-apply your edit on top of the latest document, and retry.

Analyze a reference video into an EDIT BLUEPRINT so a similar edit can be rebuilt with different footage over the same music. Returns: shot boundaries (cuts) with per-shot audio energy, music beats + BPM, a loudness curve, the detected drop, and extracts the reference's music track into media/ (registered in the project, ready to place on A1). Remake recipe: copy the reference's width/height/fps to the project, write beats into project markers, lay the extracted music on A1, then place one clip per blueprint shot at the same start/duration — pick calm footage for low-energy shots and action for high-energy ones, and make the biggest moment land on drop. See the 'Remake a reference video' section of fablecut_docs.

Copy a local media file (video/audio/image) into FableCut's media library and register it in the project. Returns the created media entry (use its id in clips).