chore: add workflow to sync webperf skills from webperf-snippets

[nucliweb]

Motivation

WebPerf skills originate in nucliweb/webperf-snippets. This PR proposes a GitHub Actions workflow to automate keeping them in sync, so new releases are picked up automatically without manual intervention.

How it works

• Checks the latest release from nucliweb/webperf-snippets
• Compares it against the last synced version stored in .github/webperf-snippets-version
• If a new release is available:
  • Downloads and extracts the skills into skills/
  • Adapts tool references from the standalone format (mcp__chrome-devtools__tool_name) to the MCP server internal format (tool_name)
  • Opens a PR with the changes
• Skips gracefully if already up to date or if a PR for that version already exists

Schedule

The workflow runs every Monday at 09:00 UTC — this is a proposal and the cadence can be adjusted or replaced with a different trigger. It also supports manual runs via workflow_dispatch.

Example execution

You can see the workflow in action here: nucliweb/chrome-devtools-mcp#2

[natorion]

In general I think it would be great to have the skills available within the DT MCP, thank you @nucliweb! I have a few remarks though:

• I don't think we want an automated import of 3rd party content.
• I think it makes sense first to migrate the skills over to this repo 1-by-1 - in particular because I also expect we will have to make some changes to optimize them for the MCP.

@OrKoN @devnook @matthiasrohmer for thoughts too please.

[OrKoN]

Yes, we cannot mix third party code (skills in this case) with our own. I also was thinking that if you are open to upstreaming the skills we can maintain them here (+ we already have some skills around performance) so it probably makes sense to have skills be consistent and in the same style (instead of a second set of skills).

[nucliweb]

Ok, make sense, I'll send another PR with the skills.

@natorion @OrKoN, WDYT about the structure and naming?

• webperf
• webperf-core-web-vitals
• webperf-interaction
• webperf-loading
• webperf-media
• webperf-resources