multi-search-engine

multi-search-engine is a skill for Claude Code, Codex from InternScience/MolClaw. It costs 46 tokens per session (988 once invoked), scanned A, a copy of multi-search-engine, MIT.

A search tool that queries 17 Chinese and international search engines, including Google, Bing, DuckDuckGo, and WolframAlpha.

In plain words
What is it for?
Use it to search the web, target specific sites, use privacy-focused engines, or send knowledge queries to WolframAlpha.
Why use it?
It helps compare results across search engines and apply filters such as time ranges, site restrictions, and advanced search operators.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

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 skills/internscience/molclaw/multi-search-engine
Any agent
npx skills add InternScience/MolClaw --skill multi-search-engine
Clone the repo
git clone --depth 1 https://github.com/InternScience/MolClaw

Made for: Claude Code, Codex.

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.

agentmods badge for multi-search-engine

README.md
[![agentmods](https://agentmods.dev/badge/skills/internscience/molclaw/multi-search-engine.svg)](https://agentmods.dev/skills/internscience/molclaw/multi-search-engine)
Your own site
<a href="https://agentmods.dev/skills/internscience/molclaw/multi-search-engine"><img src="https://agentmods.dev/badge/skills/internscience/molclaw/multi-search-engine.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 988 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00046 $0.00988
Opus 5 $0.00023 $0.00494
Sonnet 5 $0.00009 $0.00198
Haiku 4.5 $0.00005 $0.00099

Measured 2d ago against content hash ef2d2706e82a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

multi-search-engine 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.

Origin

This is a copy

100% identical to multi-search-engine — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/LR_research/tools/multi-search-engine/SKILL.md · 111 lines

How it starts

The opening of the file, as written. The whole thing — 111 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Multi Search Engine v2.0.1

Integration of 17 search engines for web crawling without API keys.

Search Engines

Domestic (8)

  • Baidu: https://www.baidu.com/s?wd={keyword}
  • Bing CN: https://cn.bing.com/search?q={keyword}&ensearch=0
  • Bing INT: https://cn.bing.com/search?q={keyword}&ensearch=1
  • 360: https://www.so.com/s?q={keyword}
  • Sogou: https://sogou.com/web?query={keyword}
  • WeChat: https://wx.sogou.com/weixin?type=2&query={keyword}
  • Toutiao: https://so.toutiao.com/search?keyword={keyword}
  • Jisilu: https://www.jisilu.cn/explore/?keyword={keyword}

International (9)

  • Google: https://www.google.com/search?q={keyword}
  • Google HK: https://www.google.com.hk/search?q={keyword}
  • DuckDuckGo: https://duckduckgo.com/html/?q={keyword}
  • Yahoo: https://search.yahoo.com/search?p={keyword}
  • Startpage: https://www.startpage.com/sp/search?query={keyword}
  • Brave: https://search.brave.com/search?q={keyword}
  • Ecosia: https://www.ecosia.org/search?q={keyword}
  • Qwant: https://www.qwant.com/?q={keyword}
  • WolframAlpha: https://www.wolframalpha.com/input?i={keyword}

Quick Examples

// Basic search
web_fetch({"url": "https://www.google.com/search?q=python+tutorial"})

// Site-specific
web_fetch({"url": "https://www.google.com/search?q=site:github.com+react"})

// File type
web_fetch({"url": "https://www.google.com/search?q=machine+learning+filetype:pdf"})

// Time filter (past week)
web_fetch({"url": "https://www.google.com/search?q=ai+news&tbs=qdr:w"})

// Privacy search
web_fetch({"url": "https://duckduckgo.com/html/?q=privacy+tools"})

// DuckDuckGo Bangs
web_fetch({"url": "https://duckduckgo.com/html/?q=!gh+tensorflow"})

// Knowledge calculation
web_fetch({"url": "https://www.wolframalpha.com/input?i=100+USD+to+CNY"})

Advanced Operators

Operator Example Description
site: site:github.com python Search within site
filetype: filetype:pdf report Specific file type
"" "machine learning" Exact match
- python -snake Exclude term
OR cat OR dog Either term

Read the full file on GitHub · 111 lines

Files

What ships with it

6 files beside SKILL.md 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.

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. 2d ago First seen · 111 lines · 46 tokens per session scan A ef2d2706e82a

Subscribe to this mod's changes

multi-search-engine is a skill published in the GitHub repository InternScience/MolClaw (33 stars, last pushed 29d ago), licensed MIT. It adds 46 tokens to every session and 988 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to multi-search-engine, differing in 0 lines, and is treated as a copy.

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