Screencast MCP
NPM · @TMHS/SCREENCAST-MCP
Let AI agents record the Windows screen, watch it as frames, and edit it with ffmpeg
Available components
Last scanned (1 hour ago)
Scores higher than 76% of npm servers
Category Design and Media
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 Security98
- No malware found by supply-chain analysis.Pass
- No known CVEs affecting this package version or its production dependencies.Pass
- No install/post-install scripts declared.Pass
- 30 of 92 dependencies flagged as unhealthy. View diagnostics → Partial
Provenance & Transparency87
- Source repository is publicly reachable at the declared URL. View diagnostics → Pass
- Cryptographically verified build provenance (signed, bound to TMHSDigital/screencast-mcp). View diagnostics → Pass
- License check failed: the license (CC-BY-NC-ND-4.0) isn't a recognized OSI-approved license. See how to fix → Fail
- Actively maintained (last published 4 days ago).Pass
- Publishes a security disclosure policy (SECURITY.md).Pass
Schema Quality & AI Usability76
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 10072 tokens (~170/item across 59 items; 57 tools + 2 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 Management34
- Stability check failed: the tool surface changed between 0.35.0 and 0.48.0: 1 tool removals, 0 breaking changes, 17 additions. See how to fix → Fail
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 99% of tool parameters carry a description.Partial
- Structured output schemas are declared (98% of tools); any adoption earns full credit.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 59 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
- Supports UI / widget rendering.Pass
Every 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.
- 4 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 28 to 31.
- 2 Nov 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 21 to 24.
- 1 Nov 26 0
- Stability: fail → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: 100 → unverified ▼ functional
- Package version: 0.47.0 → 0.48.0 functional
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 14 to 18.
- 29 Oct 26 +26
- Malware scan: unverified → pass ▲ security
- Known CVEs: unverified → pass ▲ security
- Dependency health: unverified → 0.86 ▲ functional
- 28 Oct 26 −9
- Known CVEs: pass → unverified ▼ security
- Stability: 0.07 → fail ▼ security
- Dependency health: 0.85 → unverified ▼ functional
- Schema quality: 197 → 170 ▲ functional
- Schema quality: 197 → 174 ▲ functional
- First check of Tool coverage: 98 functional
- Schema quality: excellent → good functional
- Destructive annotations: All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation. functional
- Package version: 0.39.0 → 0.47.0 functional
- Package version: 0.39.0 → 0.46.0 functional
- 27 Oct 26 0
- Package version: 0.38.0 → 0.39.0 functional
- 26 Oct 26 −14
- Malware scan: pass → unverified ▼ security
- Stability: 0.00 → unverified ▼ security
- Known CVEs: pass → unverified ▼ security
- Tool safety: pass → unverified ▼ security
- Capabilities: pass → unverified ▼ functional
- Dependency health: 0.85 → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Schema quality: 100 → unverified ▼ functional
- Package version: 0.35.0 → 0.38.0 functional
- Package version: 0.35.0 → 0.37.0 functional
- Package version: 0.35.0 → 0.36.0 functional
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 5 Nov 2026 · Analysed npm/@tmhs/screencast-mcp@0.48.0
Provenance Verified
A signed build attestation was found and verified, binding this exact artifact to the source repository it claims to come from.
| Result | Verified |
|---|---|
| Ecosystem | npm |
| Reason | Verified |
| Discovered via | Registry attestation endpoint |
| Source repo | TMHSDigital/screencast-mcp |
| Certificate issuer | https://token.actions.githubusercontent.com |
| Certificate SAN | https://github.com/TMHSDigital/screencast-mcp/.github/workflows/publish.yml@refs/tags/v0.48.0 |
| Rekor log index | 3617872362 |
| Predicate type | SLSA build provenance https://slsa.dev/provenance/v1 |
| Subject digest | sha512:6dcf4949d551aa0804285875a89a447a1a407f53c701ca7690dfa8b4d8e98808c61889b4c24bba9a930cc09eb4307b199b2ac1131544bb6809f5f73c8 |
Background: How many MCP packages publish verified provenance →
Dependencies 92 packages
| Packages resolved | 92 |
|---|---|
| Stale | 30 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
search_recording Search Recording ~118
Search an index_recording timeline (screen text, events, markers, transcript): timecoded hits, best first, secrets masked. No frames unless asked.
| Name | Type | Req | Description |
|---|---|---|---|
| images | integer | – | Thumbnails of the top N hits (default 0). |
| input | string | – | Recording path. |
| limit | integer | – | Max hits (default 10). |
| query | string | yes | Text; tolerates OCR misreads. |
| regex | boolean | – | query is a regex. |
| sessionId | string | – | Or a stopped session id. |
| Name | Type | Req | Description |
|---|---|---|---|
| hits | array | yes | – |
| total | number | yes | – |
No examples provided.
speed Change Speed ~119
Change playback speed by a factor (>1 faster, <1 slower) and re-encode. Audio is retempo'd to match when the source has an audio track.
| Name | Type | Req | Description |
|---|---|---|---|
| factor | number | yes | Speed multiplier: >1 is faster, <1 is slower (e.g. 2 = double speed). |
| input | string | yes | Path to the source video. |
| output | string | – | Optional output path. Defaults under SCREENCAST_HOME/edits. |
| overwrite | boolean | – | Allow replacing an existing file at the output path (default false). |
| Name | Type | Req | Description |
|---|---|---|---|
| outputPath | string | yes | Path of the file written. |
No examples provided.
start_recording Start Recording ~511
Start a background screen recording. Returns a session id; finalize it with stop_recording. Never auto-starts.
| Name | Type | Req | Description |
|---|---|---|---|
| audio | object | – | Audio (default none). No microphone capture. |
| backend | string | – | gdigrab (default): the screen rectangle. wgc (window: targets, FFmpeg 8+): the window's own surface, even when covered or moved; client area only, no audio. ddagrab: one display on the GPU, low CPU. |
| cursor | string | – | events: leave the OS cursor out and log it (implies events) for the cursor tool to redraw. |
| encoder | string | – | auto = first working GPU encoder, else x264 (default with ddagrab; else x264). |
| events | boolean | – | Also log clicks, scroll, cursor, and typing (video-timed, video pixels) for read_events (default false; ~1 s slower start). |
| exactTitle | boolean | – | window: targets match the whole title only, never a substring (default false). |
| fps | integer | – | Frames per second (default 30). |
| keys | string | – | With events: masked (default) logs typing only as 0.5 s-grid bursts, never keys; shortcuts also names Ctrl/Alt/Win chords. Typed text is never logged. |
| maxDurationSec | integer | – | Auto-stop after this many seconds (default 3600 or SCREENCAST_MAX_RECORDING_SEC; max 7 days; 0 = no cap). |
| output | string | – | Output .mp4 path (default under SCREENCAST_HOME/recordings). |
| overwrite | boolean | – | Allow replacing an existing file at the output path (default false). |
| quality | string | – | Encoder preset (default standard). |
| replayBufferSec | integer | – | Instant replay: keep only the last N s (bounded disk) for save_replay. gdigrab or ddagrab, not wgc. |
| target | string | yes | full | monitor:<i> (0 = primary) | window:<title> (or window:exe=<app.exe> / window:hwnd=<n>) | region:<x>,<y>,<w>,<h>. With gdigrab a window's rectangle is resolved once at start (visible, on top);… |
| webcam | object | – | Also record a camera to <output>.webcam.mp4, aligned for overlay. |
| Name | Type | Req | Description |
|---|---|---|---|
| backend | string | yes | – |
| outputPath | string | yes | – |
| sessionId | string | yes | – |
| status | string | yes | – |
No examples provided.
step_guide Step-by-Step Guide ~160
Turn a recording's event log into a numbered how-to: a ringed screenshot and caption per step, marker headings; Markdown and/or one HTML file. Never includes typed text.
| Name | Type | Req | Description |
|---|---|---|---|
| format | string | – | md + images/, self-contained html, or both (default). |
| input | string | – | Recording path (uses its .events.jsonl). |
| ocr | boolean | – | OCR shots for captions and secret boxes (default true; needs Windows OCR). |
| outputDir | string | – | Guide folder (default: new in SCREENCAST_HOME/edits). |
| overwrite | boolean | – | Replace a guide already in outputDir. |
| sessionId | string | – | Or a stopped session's id. |
| title | string | – | Guide title. |
| Name | Type | Req | Description |
|---|---|---|---|
| outputDir | string | yes | – |
No examples provided.
stop_recording Stop Recording ~61
Stop a recording gracefully so the file is finalized; returns the path and duration.
| Name | Type | Req | Description |
|---|---|---|---|
| save | boolean | – | Replay buffer: write it all to outputPath first (default: discard). |
| sessionId | string | yes | Session id returned by start_recording. |
| Name | Type | Req | Description |
|---|---|---|---|
| durationSec | number|null | yes | – |
| outputPath | string | yes | – |
| sessionId | string | yes | – |
| status | string | yes | – |
No examples provided.
title_card Title Card ~264
Generate a title card clip (centered text on a solid background, silent audio track) to stitch in with assemble_highlights. Uncoverable characters are reported in warnings.
| Name | Type | Req | Description |
|---|---|---|---|
| bg | string | – | Background color (default black). |
| bold | boolean | – | Use the bold weight (default true). |
| duration | number | – | Card length in seconds (default 3). |
| fontColor | string | – | Text color (default white). |
| fontFile | string | – | Font: a .ttf/.otf/.ttc path or a C:\Windows\Fonts file name. Default: bundled Inter, with a covering system font for scripts it lacks (CJK, emoji, Arabic, ...). |
| fontSize | integer | – | Text size in px (default 96). |
| fps | integer | – | Card fps (default 30). |
| height | integer | – | Card height (default 1080). |
| output | string | – | Optional output path. Defaults under SCREENCAST_HOME/edits. |
| overwrite | boolean | – | Allow replacing an existing file at the output path (default false). |
| text | string | yes | Title text. Multiple lines are allowed (use \n). |
| width | integer | – | Card width (default 1920). |
| Name | Type | Req | Description |
|---|---|---|---|
| outputPath | string | yes | Path of the file written. |
No examples provided.
transcribe Transcribe Speech ~187
Transcribe a recording's speech to an SRT subtitle file, locally, with FFmpeg 8's whisper filter (needs a whisper.cpp model file). Returns the SRT path and the text. Pair with burn_subtitles to caption the video.
| Name | Type | Req | Description |
|---|---|---|---|
| input | string | yes | Path to the video or audio to transcribe. |
| language | string | – | Spoken language code, e.g. 'en', or 'auto' (default). |
| model | string | – | Path to a whisper.cpp model file (ggml-*.bin). Defaults to SCREENCAST_WHISPER_MODEL. |
| output | string | – | Optional output .srt path. Defaults under SCREENCAST_HOME/edits. |
| overwrite | boolean | – | Allow replacing an existing file at the output path (default false). |
| words | boolean | – | One word per cue, for word timing (cut_by_transcript). |
| Name | Type | Req | Description |
|---|---|---|---|
| cues | integer | yes | – |
| srtPath | string | yes | – |
| text | string | yes | – |
No examples provided.
trim Trim Video ~180
Cut a video down to one sub-clip by start + (end or duration). For several segments use clip; to combine with other edits use pipeline.
| Name | Type | Req | Description |
|---|---|---|---|
| duration | number | – | Clip length in seconds. Use end OR duration. |
| end | number | – | End time in seconds. Use end OR duration. |
| exact | boolean | – | Re-encode for a frame-exact cut with the removed content really gone (default true). false = fast stream copy that snaps to a keyframe and keeps hidden earlier frames; never use it to remove secrets. |
| input | string | yes | Path to the source video. |
| output | string | – | Optional output path. Defaults under SCREENCAST_HOME/edits. |
| overwrite | boolean | – | Allow replacing an existing file at the output path (default false). |
| start | number | yes | Start time in seconds. |
| Name | Type | Req | Description |
|---|---|---|---|
| outputPath | string | yes | Path of the file written. |
No examples provided.
wait_for_change Wait for Screen Change ~269
Wait until part of the screen changes or settles, instead of guessing a sleep. Returns the elapsed time, changed regions (screenshot pixels; add `origin` for desktop), and the final state.
| Name | Type | Req | Description |
|---|---|---|---|
| exactTitle | boolean | – | window: targets match the whole title only (default false). |
| intervalMs | integer | – | Pause between checks in ms (default 250). |
| keep | boolean | – | Keep the final screenshot on disk and return its path (default false). |
| mode | string | – | change (default): return once it differs from the start. settle: once it has been still for settleSec. |
| pixelThreshold | number | – | Mean 0-255 difference for a ~32x32 cell to count as changed (default 12). |
| returnImage | boolean | – | Return the final state inline (default true). |
| settleSec | number | – | Mode settle: seconds of stillness (default 1). |
| target | string | yes | What to watch: full | monitor:<i> | window:<title> (or exe=/hwnd=) | region:<x>,<y>,<w>,<h>. |
| timeoutSec | number | – | Give up after this many seconds (default 30; a timeout is a result, not an error). |
| Name | Type | Req | Description |
|---|---|---|---|
| elapsedSec | number | yes | – |
| mode | string | yes | – |
| origin | object | yes | – |
| outcome | string | yes | – |
| regions | array | yes | – |
No examples provided.
xfade_transition Crossfade Transition ~144
Join two videos with an xfade transition (audio crossfaded); they need not match in size, fps, or audio. For more clips use assemble_highlights.
| Name | Type | Req | Description |
|---|---|---|---|
| duration | number | – | Transition length in seconds (default 1). |
| inputA | string | yes | Outgoing video. |
| inputB | string | yes | Incoming video. |
| output | string | – | Optional output path. Defaults under SCREENCAST_HOME/edits. |
| overwrite | boolean | – | Allow replacing an existing file at the output path (default false). |
| transition | string | – | xfade name (default fade): fade, wipeleft, slideup, circleopen, dissolve, ... |
| Name | Type | Req | Description |
|---|---|---|---|
| outputPath | string | yes | Path of the file written. |
No examples provided.
zoom Zoom and Pan ~322
Smooth animated zoom-and-pan into the action and back out, from keyframes or planned from logged clicks or screen changes.
| Name | Type | Req | Description |
|---|---|---|---|
| dryRun | boolean | – | Return the planned keyframes only (editable, pass back). |
| events | string | – | Events log (default: the input's .events.jsonl); must match the input's timing and size, so use the original recording. |
| follow | string | – | Without keyframes: clicks (from the events log of start_recording events: true) or changes (where the screen changed). auto (default): clicks if logged, else changes. |
| highlightClicks | boolean | – | Ring each logged click (default false). |
| highlightColor | string | – | Ring color (default #FF4545). |
| holdSec | number | – | Auto mode: stay zoomed this long after activity (default 2). |
| input | string | yes | Path to the source video. |
| keyframes | array | – | Views reached by time t: a source rectangle (x, y, width, height), or { t, full: true } to zoom out. Omit to plan them (see follow). |
| maxZoom | number | – | Auto mode: the furthest it zooms in (default 2.5). |
| output | string | – | Optional output path. Defaults under SCREENCAST_HOME/edits. |
| overwrite | boolean | – | Allow replacing an existing file at the output path (default false). |
| transitionSec | number | – | How long each zoom/pan eases (default 0.6). |
| Name | Type | Req | Description |
|---|---|---|---|
| keyframes | array | yes | – |
No examples provided.
How do I install the Screencast MCP server?
Screencast MCP runs locally as an npm package, launched with npx -y @tmhs/screencast-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · @tmhs/screencast-mcp
claude mcp add tmhsdigital-screencast-mcp -- npx -y @tmhs/screencast-mcp
What is the Screencast MCP server?
Screencast MCP is listed in the public MCP registry as io.github.TMHSDigital/screencast-mcp. Let AI agents record the Windows screen, watch it as frames, and edit it with ffmpeg. This page covers its npm package (@tmhs/screencast-mcp).
Is the Screencast MCP server safe to use?
Screencast MCP scores 83 out of 100 on VerifyMCP. We found no known CVEs affecting it as of 5 November 2026. It declares no install or post-install scripts. Its build provenance is signed and verified. 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 Screencast MCP server expose?
Screencast MCP exposes 57 tools: start_recording, stop_recording, pause_recording, resume_recording, save_replay, and 52 more. Their descriptions and schemas cost roughly 9,455 tokens of context every time the server is loaded.
Is the Screencast MCP server still maintained?
Screencast MCP is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the Screencast MCP server under?
Screencast MCP declares the CC-BY-NC-ND-4.0 licence, which is not on the OSI-approved list. Read the terms before using it at work, and note this covers the source only, not the cost of any service it calls.