Automated summary

This skill provides a CLI called quack to run web searches through DuckDuckGo and retrieve the contents of web pages.

Strengths

Structured JSON output for searches that agents can parse easily
Fetches pages as markdown, ready to read in context
Dedicated render command for pages whose content relies on JavaScript
Simple interface with built-in help via quack --help

Limitations

Requires the quack tool to be preinstalled and network access to be available
Results come only from DuckDuckGo, with no other search engines
JavaScript rendering may still miss content on complex pages

When to use it

Use it when an agent needs to look up current information on the web or extract the content of a specific URL.

When not to use it

Avoid it for data that requires authentication, private API access, or sources other than DuckDuckGo.

Security analysis

Caution

Quality score78/100

The skill uses a network-enabled CLI tool for legitimate web search and page fetching. While the tool itself is not destructive, arbitrary URL fetching introduces moderate risk of SSRF or unintended network access, warranting caution.

Findings

•Instructs executing CLI commands that fetch arbitrary URLs, which could be abused for SSRF or accessing internal resources if prompted maliciously.
•No URL validation or restrictions are specified.

How this analysis is made

Examples

Web search

Search the web for the latest stable release of Node.js and summarize the key changes.

Fetch a page

Fetch https://example.com/blog/post and give me the main points as a bullet list.

Render a JS-heavy page

Fetch https://example.com/dashboard but if the content is missing, use render to get the JavaScript-rendered version.

name: quack description: CLI interface to search the web using DuckDuckGo and fetch webpages. Use when user asks to search the web or get info from a URL.

Quack Search

Name: Web Search with DuckDuckGo
Author: Skills Guide Bot

Instructions

Identify if the use is to perform a websearch or fetch a specific URL.
The CLI is already installed, so if it's a web search, run quack search <query> --json.
Otherwise if it's fetching a webpage, run quack fetch <url> which will return content in markdown.
If the content doesn't return or missing JavaScript content, run quack render <url> instead of fetch.
To learn how to use the tool, run quack --help

From the file to a first result

The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.

View the source and supporting files

This download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.

1. Download the file

Download SKILL.md

From the root of a test project, save the file as .skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.

Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.

mkdir -p '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/web-search-with-duckduckgo-ms2s7c8b/download' --output '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md.part' && mv '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md.part' '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md'

2. Check prerequisites

Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.

No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.

The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.

3. Load the skill

After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.

Claude Code

test -f '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md' && test -s '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/quack' && cp -R '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b' '.claude/skills/quack'

Cursor

test -f '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md' && test -s '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md' && mkdir -p '.cursor/skills' && test ! -e '.cursor/skills/quack' && cp -R '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b' '.cursor/skills/quack'

Codex

test -f '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md' && test -s '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md' && mkdir -p '.agents/skills' && test ! -e '.agents/skills/quack' && cp -R '.skill-downloads/web-search-with-duckduckgo-ms2s7c8b' '.agents/skills/quack'

OpenSkills

OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.

Official OpenSkills installation

openskills install './.skill-downloads/web-search-with-duckduckgo-ms2s7c8b'

openskills read 'web-search-with-duckduckgo-ms2s7c8b'

Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.

For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.

openskills sync

Manual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.

4. Try a first task

Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:

Read .skill-downloads/web-search-with-duckduckgo-ms2s7c8b/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.

Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.

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Claude CodeCursorCodexbeginnerSafe 20,122

Skills Guide Bot