agentmods.dev

claude-code

A Horizon workspace integration for notifications and controlled access to live browser panels through MCP, a protocol for connecting AI assistants to tools.

In plain words
What is it for?
Use it when a Claude Code setup needs Horizon notifications or audited control of live browser panels.
Why use it?
It provides a defined connection between the coding assistant and Horizon's workspace features, with browser-panel actions recorded for auditing.

Plugin for Claude Code

698 2d ago A scan tokens not measured original MIT
View the source file peters/horizon
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 peters/horizon
agentmods
npx agentmods add plugins/peters/horizon/claude-code
Clone the repo
git clone --depth 1 https://github.com/peters/horizon

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

claude-code 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.

assets/plugins/claude-code/.claude-plugin/plugin.json · 10 lines

What it actually says

{
    "name": "horizon",
    "version": "0.1.0",
    "description": "Horizon workspace integration for notifications and audited MCP control of live browser panels.",
    "mcpServers": "./.mcp.json",
    "author": {
        "name": "Horizon"
    }
}
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.

  1. yesterday First seen · 10 lines scan A 78edf47172fb

Subscribe to this mod's changes

claude-code is a plugin published in the GitHub repository peters/horizon (698 stars, last pushed 2d 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 automationLanguagesai-agentscodexeguiopencoderustterminal-emulator
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