What is didvc-browser-plugins?

A collection of small Claude Code plugins intended to avoid unnecessary impact on the computer. Its listed plugin warns when work may launch another browser or run in parallel.

Use it when browser-driving tools may start multiple Chrome instances or choose parallel work based on the computer's processor count.

It helps make agents notice potentially wasteful browser launches or parallel work without stopping them.

didvc-browser-plugins — Plugin by didvc

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 didvc/claude-chrome-multi-instance-warn

agentmods

npx agentmods add plugins/didvc/claude-chrome-multi-instance-warn/marketplace

Clone the repo

git clone --depth 1 https://github.com/didvc/claude-chrome-multi-instance-warn

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

didvc-browser-plugins 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 · 18 lines

What it actually says

{
  "name": "didvc-browser-plugins",
  "description": "Small, single-purpose Claude Code plugins focused on staying out of the machine's way.",
  "owner": {
    "name": "didvc",
    "url": "https://github.com/didvc"
  },
  "plugins": [
    {
      "name": "chrome-multi-instance-warn",
      "source": "./plugins/chrome-multi-instance-warn",
      "description": "Warns once per session when a tool payload is about to launch another browser, or fan work out in parallel. Never blocks.",
      "version": "0.1.0",
      "category": "safety"
    }
  ]
}

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 · 18 lines scan A c56a05691492

Subscribe to this mod's changes

didvc-browser-plugins is a plugin published in the GitHub repository didvc/claude-chrome-multi-instance-warn (1 stars, last pushed 20d 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 2026-08-31.

Browser automation Productivity agentic-ai ai-agents browser-automation chrome-devtools-protocol claude-code claude-code-hooks

didvc-browser-plugins

Getting it into your agent

Grade A, and why

Nothing flagged

What it actually says

What this file has done since we first saw it

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