What is reaction-search?

An MCP server named reaction-search, run inside Docker. The description does not say what kind of reactions it searches for.

Use it when a project needs to run the reaction-search MCP server. The exact search tasks are not described.

It provides a configured server entry, but there is not enough information to explain its search source or purpose accurately.

reaction-search — MCP server for Claude Code and Codex by AndrewAltimi

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.

Clone the repo

git clone --depth 1 https://github.com/AndrewAltimit/template-repo

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

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/mcp/andrewaltimit/template-repo/reaction-search/github.svg)](https://agentmods.dev/mcp/andrewaltimit/template-repo/reaction-search)

Your own site

<a href="https://agentmods.dev/mcp/andrewaltimit/template-repo/reaction-search"><img src="https://agentmods.dev/badge/mcp/andrewaltimit/template-repo/reaction-search/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/mcp/andrewaltimit/template-repo/reaction-search"><img src="https://agentmods.dev/badge/mcp/andrewaltimit/template-repo/reaction-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

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. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Security

Grade A, and why

reaction-search 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 12d 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.

.mcp.json · 18 lines

What it actually says

{
  "reaction-search": {
    "command": "docker",
    "args": [
      "compose",
      "-f",
      "./docker-compose.yml",
      "--profile",
      "services",
      "run",
      "--rm",
      "-T",
      "mcp-reaction-search",
      "--mode",
      "stdio"
    ]
  }
}

Same file

What else `.mcp.json` configures

This page is one entry in a file that holds 11. Installing the file brings all of them; each is measured and scanned on its own page.

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.

12d ago First seen · 18 lines scan A a894d8086d85

Subscribe to this mod's changes

reaction-search is an MCP server published in the GitHub repository AndrewAltimit/template-repo (131 stars, last pushed 2mo ago), licensed Unlicense. 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 2026-08-30.

AI Safety AI-policy Claude Code agent-orchestration ai-agents ai-governance

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