What is prerenderbuddy?

A local MCP server that provides Prerender Buddy tools for checking public websites and, when configured, workspace evidence. MCP is a way for an agent to call tools from another program.

Use it to run public crawler diagnostics or inspect optional Prerender Buddy workspace information when an API key is configured.

It gives the agent a defined local connection for crawler diagnostics without requiring those checks to be built into the coding project.

prerenderbuddy — MCP server by kopachlager

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.

agentmods

npx agentmods add mcp/kopachlager/prerenderbuddy-plugins/prerenderbuddy-prerenderbuddy

Clone the repo

git clone --depth 1 https://github.com/kopachlager/prerenderbuddy-plugins

Made for: Claude Code, Codex, Cursor, Gemini CLI, OpenCode.

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

prerenderbuddy 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 2d ago.

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.

plugins/prerenderbuddy/.mcp.json · 12 lines

What it actually says

{
  "prerenderbuddy": {
    "command": "npx",
    "args": [
      "--yes",
      "@prerenderbuddy/[email protected]"
    ],
    "env_vars": [
      "PRERENDER_BUDDY_API_KEY"
    ]
  }
}

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.

2d ago First seen · 12 lines scan A 2358b2aac345

Subscribe to this mod's changes

prerenderbuddy is an MCP server published in the GitHub repository kopachlager/prerenderbuddy-plugins (2 stars, last pushed 2d ago), licensed Apache-2.0. Its token cost is not measured: an MCP server costs its tool schemas, not its config file. 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.

Backend and APIs Debugging agent-plugins agent-skills claude-code codex crawler github-copilot

prerenderbuddy

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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