chore(deps): update dependency agent-browser to v0.38.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
agent-browser (source)	0.37.1 → 0.38.0

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Release Notes

vercel-labs/agent-browser (agent-browser)

v0.38.0

Compare Source

New Features

• Added conditional screenshots with screenshot --if-changed to skip unchanged captures and --threshold <0-1> to tolerate small pixel differences. Screenshot history is scoped to each tab and capture mode, and unchanged captures omit the image path to save tokens (#​1813)
• Added automatic snapshot deltas with snapshot --delta, which returns a full baseline followed by an unchanged revision or compact structural changes. Use --full to refresh the baseline (#​1811)
• Added persistent snapshot refs for surviving DOM elements across same-document changes. Replaced elements and navigated pages or iframes invalidate their refs without recycling identifiers (#​1812)
• Added human-like pointer movement with session --input-mode, per-action --human for clicks and drags, and reproducible curved mouse move paths (#​1810)
• Added recording presentation tools: --cursor renders an animated pointer and click ripple, while --contact-sheet saves a timestamped PNG summary of visual changes (#​1807, #​1808)
• Added stateful auth vault login with auth login --no-navigate, which fills an already prepared login page after verifying its origin against the credential URL (#​1771)
• Added WebMCP catalog updates to normal browser responses. Concise, content-bounded summaries appear on initial discovery and catalog changes, while full schemas remain opt-in (#​1842)

Improvements

• Improved recording frame timing by holding the latest Chrome frame between repaints so the output duration follows the requested frame rate (#​1806)

Bug Fixes

• Fixed CDP transport recovery and shutdown so malformed transport messages do not strand unrelated commands and failed initialization disconnects cleanly (#​1739)
• Fixed dropdown label matching to normalize whitespace, including non-breaking spaces, when selecting options by visible label (#​1736)

Documentation

• Clarified reliable browser wait strategies by recommending page-specific selectors, text, URLs, or JavaScript conditions and reserving networkidle for pages known to become quiet (#​1834)

Contributors

• @​ctate
• @​Railly
• @​mauricioantolin
• @​mecampbellsoup
• @​evrenverse
• @​judegao
• @​petehunt

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