duckduckgo-search

duckduckgo-search is a skill for Claude Code, Codex from math-inc/OpenGauss. It costs 44 tokens per session (1,562 once invoked), scanned A, original, MIT.

A web-search skill that finds text, news, images, and videos through DuckDuckGo without needing an API key.

In plain words
What is it for?
Use it to research topics, companies, documentation, and current events, then retrieve fuller page content.
Why use it?
It gives a coding agent a way to search the web when its usual search service is unavailable or unsuitable.

Skill for Claude CodeCodex

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

Good fit Use it to research topics, companies, documentation, and current events, then retrieve fuller page content.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/math-inc/opengauss/duckduckgo-search
About the project

OpenGauss is a project-scoped Lean workflow orchestrator that gives coding agents a command-line interface for managing formal proof and formalization tasks. It is used with Lean projects to coordinate agents, tooling, backend sessions, and workflows supplied by lean4-skills. The catalogue add-ons operate these Gauss-native workflows.

math-inc/OpenGauss · 1,260 stars · on GitHub

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 math-inc/OpenGauss --skill duckduckgo-search
Clone the repo
git clone --depth 1 https://github.com/math-inc/OpenGauss

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 duckduckgo-search

README.md
[![agentmods](https://agentmods.dev/badge/skills/math-inc/opengauss/duckduckgo-search/github.svg)](https://agentmods.dev/skills/math-inc/opengauss/duckduckgo-search)
Your own site
<a href="https://agentmods.dev/skills/math-inc/opengauss/duckduckgo-search"><img src="https://agentmods.dev/badge/skills/math-inc/opengauss/duckduckgo-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.

agentmods 80×15 button for duckduckgo-search

Your own site · 80×15
<a href="https://agentmods.dev/skills/math-inc/opengauss/duckduckgo-search"><img src="https://agentmods.dev/badge/skills/math-inc/opengauss/duckduckgo-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,562 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 158
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
Origin original No closer match found 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 $0.00044 $0.01562
Opus 5 $0.00022 $0.00781
Sonnet 5 $0.00009 $0.00312
Haiku 4.5 $0.00004 $0.00156

Measured 7d ago against content hash 197ac1f0b739, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

duckduckgo-search scanned grade A with 1 finding 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 7d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/duckduckgo.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

2. **Extract** content using the `web_extract` tool (if available) or curl
skills/research/duckduckgo-search/SKILL.md · 189 lines

How it starts

The opening of the file, as written. The whole thing — 189 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Free web search using DuckDuckGo. No API key required.

Preferred when web_search tool is unavailable or unsuitable (no FIRECRAWL_API_KEY set). Can also be used as a standalone search tool.

Setup

# Install the ddgs package (one-time)
pip install ddgs

Python API (Primary)

Use the DDGS class in execute_code for structured results with typed fields.

Important: max_results must always be passed as a keyword argument — positional usage raises an error on all methods.

Text Search

Best for: general research, companies, documentation.

from ddgs import DDGS

with DDGS() as ddgs:
    for r in ddgs.text("python async programming", max_results=5):
        print(r["title"])
        print(r["href"])
        print(r.get("body", "")[:200])
        print()

Returns: title, href, body

News Search

Best for: current events, breaking news, latest updates.

from ddgs import DDGS

with DDGS() as ddgs:
    for r in ddgs.news("AI regulation 2026", max_results=5):
        print(r["date"], "-", r["title"])
        print(r.get("source", ""), "|", r["url"])
        print(r.get("body", "")[:200])
        print()

Returns: date, title, body, url, image, source

Image Search

Best for: visual references, product images, diagrams.

from ddgs import DDGS

with DDGS() as ddgs:
    for r in ddgs.images("semiconductor chip", max_results=5):
        print(r["title"])
        print(r["image"])       # direct image URL
        print(r.get("thumbnail", ""))
        print(r.get("source", ""))
        print()

Returns: title, image, thumbnail, url, height, width, source

Video Search

Best for: tutorials, demos, explainers.

from ddgs import DDGS

with DDGS() as ddgs:
    for r in ddgs.videos("FastAPI tutorial", max_results=5):
        print(r["title"])
        print(r.get("content", ""))       # video URL
        print(r.get("duration", ""))       # e.g. "26:03"
        print(r.get("provider", ""))       # YouTube, etc.
        print(r.get("published", ""))
        print()

Read the full file on GitHub · 189 lines

Files

What ships with it

1 file 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. 7d ago First seen · 189 lines · 44 tokens per session scan A 197ac1f0b739

Subscribe to this mod's changes

duckduckgo-search is a skill published in the GitHub repository math-inc/OpenGauss (1,260 stars, last pushed 5mo ago), licensed MIT. It adds 44 tokens to every session and 1,562 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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