A plugin that turns a coding agent into a browser automation agent using Playwright, a tool for controlling web browsers with code.

It helps automate browser tasks, save screenshots and action logs, and visually check the outcome.

It lets the agent operate a local browser workspace and record what it did and what the result looked like.

webwright — Plugin by microsoft

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Claude Code

/plugin marketplace add microsoft/Webwright

agentmods

npx agentmods add plugins/microsoft/webwright/marketplace

Clone the repo

git clone --depth 1 https://github.com/microsoft/Webwright

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.

When invoked not measured Not applicable: nothing here is loaded into a session.

Security scan A 0 findings. Scan, not verified.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

webwright scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude-plugin/marketplace.json · 21 lines

What it actually says

{
  "name": "webwright",
  "owner": {
    "name": "Microsoft Research",
    "url": "https://github.com/microsoft/Webwright"
  },
  "plugins": [
    {
      "name": "webwright",
      "source": {
        "source": "github",
        "repo": "microsoft/Webwright"
      },
      "description": "Turn your coding agent into a SOTA browser agent. Drives a local Playwright workspace via one bash command at a time, saving screenshots and an action log into final_runs/run_<id>/, and visually self-verifies the result.",
      "version": "0.1.0",
      "category": "automation",
      "keywords": ["browser", "playwright", "web-agent", "automation", "rpa"]
    }
  ]
}

Files

What ships with it

1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

plugin.json 672 B

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

yesterday First seen · 21 lines scan A c96a329a5d65

Subscribe to this mod's changes

webwright is a plugin published in the GitHub repository microsoft/Webwright (5,954 stars, last pushed 28d ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Browser automation Productivity

webwright

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What ships with it

What this file has done since we first saw it

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