Hermes Agent is an AI assistant that learns from its use by creating and improving skills, retaining knowledge, searching past conversations, and adapting to its users. It is for people who want to run an agent through a terminal or messaging platforms while connecting it to different AI models and scheduled tasks.
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.
npx skills add NousResearch/hermes-agent --skill duckduckgo-searchgit clone --depth 1 https://github.com/NousResearch/hermes-agentWrote 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.
[](https://agentmods.dev/skills/nousresearch/hermes-agent/duckduckgo-search)<a href="https://agentmods.dev/skills/nousresearch/hermes-agent/duckduckgo-search"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/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.
<a href="https://agentmods.dev/skills/nousresearch/hermes-agent/duckduckgo-search"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/duckduckgo-search.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Snyk warn
- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00019 | $0.02148 |
| Opus 5 | $0.00010 | $0.01074 |
| Sonnet 5 | $0.00004 | $0.00430 |
| Haiku 4.5 | $0.00002 | $0.00215 |
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 8d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
DuckDuckGo returns titles, URLs, and snippets — not full page content. To get full page content, search first and then extract the most relevant URL with `web_extract`, browser tools, or curl. Copies of this mod
8 near-identical copies found in the catalogue:
- duckduckgo-search — 100% identical, 0 lines differ
- duckduckgo-search — 100% identical, 0 lines differ
- duckduckgo-search — 100% identical, 0 lines differ
- duckduckgo-search — 95% identical, 2 lines differ
- duckduckgo-search — 95% identical, 25 lines differ
- duckduckgo-search — 95% identical, 2 lines differ
- duckduckgo-search — 94% identical, 3 lines differ
- duckduckgo-search — 94% identical, 3 lines differ
How it starts
The opening of the file, as written. The whole thing — 239 lines — stays where its author put it; the contents beside it link to each section on GitHub.
DuckDuckGo Search
Free web search using DuckDuckGo. No API key required.
Preferred when web_search is unavailable or unsuitable (for example when FIRECRAWL_API_KEY is not set). Can also be used as a standalone search path when DuckDuckGo results are specifically desired.
Detection Flow
Check what is actually available before choosing an approach:
# Check CLI availability
command -v ddgs >/dev/null && echo "DDGS_CLI=installed" || echo "DDGS_CLI=missing"
Decision tree:
- If
ddgsCLI is installed, preferterminal+ddgs - If
ddgsCLI is missing, do not assumeexecute_codecan importddgs - If the user wants DuckDuckGo specifically, install
ddgsfirst in the relevant environment - Otherwise fall back to built-in web/browser tools
Important runtime note:
- Terminal and
execute_codeare separate runtimes - A successful shell install does not guarantee
execute_codecan importddgs - Never assume third-party Python packages are preinstalled inside
execute_code
Installation
Install ddgs only when DuckDuckGo search is specifically needed and the runtime does not already provide it.
# Python package + CLI entrypoint
pip install ddgs
# Verify CLI
ddgs --help
If a workflow depends on Python imports, verify that same runtime can import ddgs before using from ddgs import DDGS.
Method 1: CLI Search (Preferred)
Use the ddgs command via terminal when it exists. This is the preferred path because it avoids assuming the execute_code sandbox has the ddgs Python package installed.
# Text search
ddgs text -q "python async programming" -m 5
# News search
ddgs news -q "artificial intelligence" -m 5
# Image search
ddgs images -q "landscape photography" -m 10
# Video search
ddgs videos -q "python tutorial" -m 5
# With region filter
ddgs text -q "best restaurants" -m 5 -r us-en
# Recent results only (d=day, w=week, m=month, y=year)
ddgs text -q "latest AI news" -m 5 -t w
# JSON output for parsing
ddgs text -q "fastapi tutorial" -m 5 -o json
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.
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.
- 8d ago First seen · 239 lines · 19 tokens per session scan A ea5ee32dee8b
duckduckgo-search is a skill published in the GitHub repository NousResearch/hermes-agent (244,603 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 2,148 once invoked, about $0.0001 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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Go-specific design patterns and best practices including functional options, small interfaces, dependency injection, concurrency patterns, error handling, and package organization. Use when working with Go code to apply idiomatic Go patterns.
verification-loop
A comprehensive verification system for Claude Code sessions. Use when verifying a Claude Code session's work before claiming it is complete.