feat: add experimental screencast recording tools#941
Merged
OrKoN merged 4 commits intoChromeDevTools:mainfrom Feb 20, 2026
Merged
feat: add experimental screencast recording tools#941OrKoN merged 4 commits intoChromeDevTools:mainfrom
OrKoN merged 4 commits intoChromeDevTools:mainfrom
Conversation
|
Thanks for your pull request! It looks like this may be your first contribution to a Google open source project. Before we can look at your pull request, you'll need to sign a Contributor License Agreement (CLA). View this failed invocation of the CLA check for more information. For the most up to date status, view the checks section at the bottom of the pull request. |
Collaborator
|
@dobesv would you be able to sign the CLA for this PR? |
Contributor
Author
|
I did sign it but it seems to be looking at the co-author line added by the AI agent and saying the agent has to sign a cla as well? |
Collaborator
|
@dobesv could you update commits to remove the AI agent authorship? otherwise you would need the AI agent to sign the CL. |
OrKoN
reviewed
Feb 16, 2026
dobesv
force-pushed
the
feat/screencast-recording
branch
2 times, most recently
from
ab2a9b2 to
e897112
Compare
Screencast tools (screencast_start, screencast_stop) are registered when the --experimental-screencast CLI flag is provided. These allow the agent to start/stop a screencast recording in mp4 format. ffmpeg must be installed in order to record a screencast.
dobesv
force-pushed
the
feat/screencast-recording
branch
from
e897112 to
277fe0d
Compare
Contributor
Author
|
I cleaned up the commit and removed extra options other than |
OrKoN
reviewed
Feb 18, 2026
OrKoN
reviewed
Feb 18, 2026
OrKoN
changed the title
OrKoN
reviewed
Feb 18, 2026
OrKoN
reviewed
Feb 18, 2026
OrKoN
force-pushed
the
feat/screencast-recording
branch
from
bb0caad to
37f0b49
Compare
OrKoN
approved these changes
Feb 20, 2026
Merged
via the queue into
ChromeDevTools:main
with commit Feb 20, 2026
33446d4
27 of 30 checks passed
github-merge-queue bot
pushed a commit
that referenced
this pull request
Feb 25, 2026
🤖 I have created a release *beep* *boop* --- ## [0.18.0](chrome-devtools-mcp-v0.17.3...chrome-devtools-mcp-v0.18.0) (2026-02-24) ### 🎉 Features * `--slim` mode for maximum token savings ([#958](#958)) ([c402b43](c402b43)) * add a new skill for accessibility debugging and auditing with Chrome DevTools MCP. ([#1002](#1002)) ([b0c6d04](b0c6d04)) * add experimental screencast recording tools ([#941](#941)) ([33446d4](33446d4)) * add skill to debug and optimize LCP ([#993](#993)) ([2cd9b95](2cd9b95)) * add storage-isolated browser contexts ([#991](#991)) ([59f6477](59f6477)) * add take_memory_snapshot tool ([#1023](#1023)) ([7ffdc5e](7ffdc5e)) * support any-match text arrays in wait_for ([#1011](#1011)) ([496ab1b](496ab1b)) * support type_text ([#1026](#1026)) ([b5d01b5](b5d01b5)) ### 🛠️ Fixes * detect X server display on Linux ([#1027](#1027)) ([1746ed9](1746ed9)) ### ♻️ Chores * cleanup string and structured console formatters ([#1005](#1005)) ([0d78685](0d78685)) * extract version in a seprate file ([#1032](#1032)) ([0106865](0106865)) * move emulation settings to context ([#1000](#1000)) ([bc3c40e](bc3c40e)) * optimize slim tool descriptions and params ([#1028](#1028)) ([ca6635d](ca6635d)) * simplify JavaScript code examples, update code block language, and refine descriptions in a11y debugging skill documentation. ([#1009](#1009)) ([5cedcaa](5cedcaa)) * types for JSON output of IssueFormatter ([#1007](#1007)) ([9ef4479](9ef4479)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
wolfib
pushed a commit
to wolfib/chrome-devtools-mcp
that referenced
this pull request
Mar 10, 2026
## Summary Adds `screencast_start` and `screencast_stop` MCP tools that allow agents to record a video of a page using Puppeteer's `page.screencast()` API. Only enabled if the command line option `--experimental-screencast` is provided Closes ChromeDevTools#878. ## New Tools ### `screencast_start` Starts recording a screencast (video) of the selected page in mp4 format. | Parameter | Type | Default | Description | |-----------|------|---------|-------------| | `path` | string (optional) | temp file | Output file path | ### `screencast_stop` Stops the active recording and reports the saved file path. ## Design - **Start/stop pair** following the `performance_start_trace` / `performance_stop_trace` pattern - **State management** via `getScreenRecorder()` / `setScreenRecorder()` on the Context interface - **Category**: `DEBUGGING` (alongside `take_screenshot`) - **ffmpeg dependency**: Clear error message when ffmpeg is not installed - **Temp file fallback**: When no `path` is provided, creates a temp file with the correct extension --------- Co-authored-by: Alex Rudenko <alexrudenko@chromium.org>
wolfib
pushed a commit
to wolfib/chrome-devtools-mcp
that referenced
this pull request
Mar 10, 2026
🤖 I have created a release *beep* *boop* --- ## [0.18.0](ChromeDevTools/chrome-devtools-mcp@chrome-devtools-mcp-v0.17.3...chrome-devtools-mcp-v0.18.0) (2026-02-24) ### 🎉 Features * `--slim` mode for maximum token savings ([ChromeDevTools#958](ChromeDevTools#958)) ([c402b43](ChromeDevTools@c402b43)) * add a new skill for accessibility debugging and auditing with Chrome DevTools MCP. ([ChromeDevTools#1002](ChromeDevTools#1002)) ([b0c6d04](ChromeDevTools@b0c6d04)) * add experimental screencast recording tools ([ChromeDevTools#941](ChromeDevTools#941)) ([33446d4](ChromeDevTools@33446d4)) * add skill to debug and optimize LCP ([ChromeDevTools#993](ChromeDevTools#993)) ([2cd9b95](ChromeDevTools@2cd9b95)) * add storage-isolated browser contexts ([ChromeDevTools#991](ChromeDevTools#991)) ([59f6477](ChromeDevTools@59f6477)) * add take_memory_snapshot tool ([ChromeDevTools#1023](ChromeDevTools#1023)) ([7ffdc5e](ChromeDevTools@7ffdc5e)) * support any-match text arrays in wait_for ([ChromeDevTools#1011](ChromeDevTools#1011)) ([496ab1b](ChromeDevTools@496ab1b)) * support type_text ([ChromeDevTools#1026](ChromeDevTools#1026)) ([b5d01b5](ChromeDevTools@b5d01b5)) ### 🛠️ Fixes * detect X server display on Linux ([ChromeDevTools#1027](ChromeDevTools#1027)) ([1746ed9](ChromeDevTools@1746ed9)) ### ♻️ Chores * cleanup string and structured console formatters ([ChromeDevTools#1005](ChromeDevTools#1005)) ([0d78685](ChromeDevTools@0d78685)) * extract version in a seprate file ([ChromeDevTools#1032](ChromeDevTools#1032)) ([0106865](ChromeDevTools@0106865)) * move emulation settings to context ([ChromeDevTools#1000](ChromeDevTools#1000)) ([bc3c40e](ChromeDevTools@bc3c40e)) * optimize slim tool descriptions and params ([ChromeDevTools#1028](ChromeDevTools#1028)) ([ca6635d](ChromeDevTools@ca6635d)) * simplify JavaScript code examples, update code block language, and refine descriptions in a11y debugging skill documentation. ([ChromeDevTools#1009](ChromeDevTools#1009)) ([5cedcaa](ChromeDevTools@5cedcaa)) * types for JSON output of IssueFormatter ([ChromeDevTools#1007](ChromeDevTools#1007)) ([9ef4479](ChromeDevTools@9ef4479)) --- This PR was generated with [Release Please](https://github.com/googleapis/release-please). See [documentation](https://github.com/googleapis/release-please#release-please).
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Adds
screencast_startandscreencast_stopMCP tools that allow agents to record a video of a page using Puppeteer'spage.screencast()API.Only enabled if the command line option
--experimental-screencastis providedCloses #878.
New Tools
screencast_startStarts recording a screencast (video) of the selected page in mp4 format.
pathscreencast_stopStops the active recording and reports the saved file path.
Design
performance_start_trace/performance_stop_tracepatterngetScreenRecorder()/setScreenRecorder()on the Context interfaceDEBUGGING(alongsidetake_screenshot)pathis provided, creates a temp file with the correct extension