mcp-duckgo

mcp-duckgo is a skill for Claude Code, Codex from opencue/cuecards. It costs 30 tokens per session (114 once invoked), scanned A, a copy of mcp-duckgo, MIT.

A web-search and page-fetching skill that connects the coding agent to DuckDuckGo. DuckDuckGo is a public search engine.

In plain words
What is it for?
Searching the web for a topic and fetching the contents of a specific URL for later use.
Why use it?
It removes the need to switch between the coding agent, a search engine, and web pages when gathering online information.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

Good fit Searching the web for a topic and fetching the contents of a specific URL for later use.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/opencue/cuecards/mcp-duckgo
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.

Any agent
npx skills add opencue/cuecards --skill mcp-duckgo
Clone the repo
git clone --depth 1 https://github.com/opencue/cuecards

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 mcp-duckgo

README.md
[![agentmods](https://agentmods.dev/badge/skills/opencue/cuecards/mcp-duckgo.svg)](https://agentmods.dev/skills/opencue/cuecards/mcp-duckgo)
Your own site
<a href="https://agentmods.dev/skills/opencue/cuecards/mcp-duckgo"><img src="https://agentmods.dev/badge/skills/opencue/cuecards/mcp-duckgo.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 114 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00030 $0.00114
Opus 5 $0.00015 $0.00057
Sonnet 5 $0.00006 $0.00023
Haiku 4.5 $0.00003 $0.00011

Measured 4d ago against content hash 39c61be98bbb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

mcp-duckgo 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 4d 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 mcp-duckgo — 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.

.agents/skills/mcp-duckgo/SKILL.md · 14 lines

What it actually says

Executing Shell commands.

  • npx -y mcporter call --stdio 'uvx duckduckgo-mcp-server' search query="{keyword}" max_results=10

Web fetch

  • npx -y mcporter call --stdio 'uvx duckduckgo-mcp-server' fetch_content url="https://..."
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. 4d ago First seen · 14 lines · 30 tokens per session scan A 39c61be98bbb

Subscribe to this mod's changes

mcp-duckgo is a skill published in the GitHub repository opencue/cuecards (5 stars, last pushed today), licensed MIT. It adds 30 tokens to every session and 114 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 mcp-duckgo, differing in 0 lines, and is treated as a copy.

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