core

core is a Browser & computer-use automation skill for AI agents, published by vercel-labs in the agent-browser repository on GitHub. Skillspace rates core C (72/100) and it passed the safety scan; a judge model has also reviewed it.

Core agent-browser usage guide. Read this before running any agent-browser commands. Covers the snapshot-and-ref workflow, navigating pages, interacting with elements (click, fill, type, select), extracting text and data, taking screenshots, managing tabs, handling forms and auth, waiting for content, running multiple browser sessions in parallel, and troubleshooting common failures. Use when the user asks to interact with a website, fill a form, click something, extract data, take a screenshot, log into a site, test a web app, or automate any browser task.

Grade
C
Quality
72 / 100
Safety
Passed
GitHub stars
38,530

Placed #1 of 2 when judged against its near-duplicates in Browser & computer-use automation.

Not launch-quality. It is graded C with a clean safety verdict, but our quality filters exclude it: it is a near-duplicate variant of another skill. So it is not in our launch-quality set, the skills our MCP server searches and recommends. How launch-quality is decided

This rating describes the version of the repository we crawled; it may have changed since, so go by its current files.

Our review

Architecture
91 / 100
Maturity
Structured: ships references or scripts
Security scan
Low-risk patterns
License
Apache-2.0
Adoption
Adopted by 0 other repositories, in 0 collections
Scope
Vendor-specific: built around one product. Usage guide for the agent-browser automation CLI

Judge review

Placed #1 of 2 when judged against its near-duplicates in Browser & computer-use automation.

  • Trigger8585
  • Instructions8585
  • Specificity9090
  • Safety5555
  • Disclosure8282
  • Maintenance6868
Positions itself as the lean entry point that hands off edge cases to other skills, and calls out the critical stale-ref-after-any-page-change gotcha explicitly.

What the scanner flagged

  • over-broad allowed-tools ('*')
  • mentions secrets in text

Not checked yet

  • No blind task eval yet
  • Sibling files (scripts, references) not fetched; security scan covers SKILL.md only

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