FableCut
MCPB · FABLECUT.MCPB · SCANNED SEP 20
Zero-dependency browser video editor AI agents drive via a JSON timeline over MCP; ffmpeg export.
Available components
How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score → Why this is hard to score →
Supply Chain Security13
- Malware scan not yet available for this package.Unverified
- Known CVEs could not be checked: this artifact ships no SBOM, so there is no dependency list to read. Publishing one would let us assess it.Unverified
- No install/post-install scripts declared.Pass
- Dependency health could not be checked: this artifact ships no SBOM, so there is no dependency list to read. Publishing one would let us assess it.Unverified
Provenance & Transparency48
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
- Clear OSI-approved license (MIT).Pass
- Actively maintained (last published 68 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability78
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 991 tokens (~141/item across 7 items; 7 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management90
- Stability observed for 27 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 7 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 7 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.
mcpb · fablecut.mcpb
Download bundleEvery change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 19 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 17 Sept 26 −3
- Stability: pass → 0.80 functional
- 16 Sept 26 +1
- Stability: 0.97 → pass security
- 14 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 83 to 87. That category is still filling its 30-day observation window: 25 days of observed history at the previous scan, 26 at this one. The score rises as the window fills, whether or not the server changes.
- 10 Sept 26 −3
- Stability: pass → 0.80 functional
- 9 Sept 26 +1
- Stability: 0.97 → pass security
- 7 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 90 to 93. That category is still filling its 30-day observation window: 27 days of observed history at the previous scan, 28 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 20 Sept 2026 · Analysed mcpb/https://github.com/ronak-create/FableCut/releases/download/v1.6.0/fablecut.mcpb
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | mcpb |
Background: How many MCP packages publish verified provenance →
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
fablecut_analyze_reference ~276
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.
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | The reference video: an absolute file path (copied into media/ automatically) or an existing '/media/…' src |
| registerMusic | boolean | – | Extract the reference's music and register it as project media (default true) |
| threshold | number | – | Scene-cut sensitivity 0–1 (default: adaptive 0.30→0.20→0.12). Lower it if obvious cuts are missed, raise it if too many false cuts. |
No output schema declared.
No examples provided.
fablecut_docs ~112
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.
| Name | Type | Req | Description |
|---|---|---|---|
| section | string | – | Return only '## ' sections whose heading contains this text (case-insensitive). Omit for the full document. |
No output schema declared.
No examples provided.
fablecut_get_project ~88
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.
| Name | Type | Req | Description |
|---|---|---|---|
| compact | boolean | – | Return a compact human-readable summary instead of the full JSON |
No output schema declared.
No examples provided.
fablecut_import_media ~62
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).
| Name | Type | Req | Description |
|---|---|---|---|
| path | string | yes | Absolute path to the source file on disk |
No output schema declared.
No examples provided.
fablecut_patch_project ~235
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}}. 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.
| Name | Type | Req | Description |
|---|---|---|---|
| ops | array | yes | Edit operations, applied in order (see tool description for shapes) |
No output schema declared.
No examples provided.
fablecut_set_project ~170
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.
| Name | Type | Req | Description |
|---|---|---|---|
| force | boolean | – | Overwrite even if the project changed since it was last read (discards those external/user changes). Only when the user explicitly asks. |
| project | object | yes | The complete project document (see fablecut_docs for schema) |
No output schema declared.
No examples provided.
fablecut_status ~48
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.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
What is the FableCut MCP server?
FableCut is an MCP server listed in the public MCP registry as io.github.ronak-create/fablecut. Zero-dependency browser video editor AI agents drive via a JSON timeline over MCP; ffmpeg export. This page covers its MCPB bundle (https://github.com/ronak-create/FableCut/releases/download/v1.6.0/fablecut.mcpb).
Is the FableCut MCP server safe to use?
FableCut scores 58 out of 100 on VerifyMCP. It declares no install or post-install scripts. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the FableCut MCP server expose?
FableCut exposes 7 tools: fablecut_status, fablecut_docs, fablecut_get_project, fablecut_patch_project, fablecut_set_project, and 2 more. Their descriptions and schemas cost roughly 991 tokens of context every time the server is loaded.
What licence is the FableCut MCP server under?
FableCut declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.