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 gebruder/wirken --skill web-fetchgit clone --depth 1 https://github.com/gebruder/wirkenWrote 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/gebruder/wirken/web-fetch)<a href="https://agentmods.dev/skills/gebruder/wirken/web-fetch"><img src="https://agentmods.dev/badge/skills/gebruder/wirken/web-fetch/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/gebruder/wirken/web-fetch"><img src="https://agentmods.dev/badge/skills/gebruder/wirken/web-fetch.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector warn
SkillSpector: 1 finding, up to medium
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 →
- medium Data Exfiltration · line 32 Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
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 | $0.00009 | $0.00324 |
| Opus 5.5 | $0.00004 | $0.00130 |
| Sonnet 5.5 | $0.00002 | $0.00065 |
| Haiku 4.5 | $0.00001 | $0.00032 |
Grade B, and why
web-fetch scanned grade B with 2 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 1mo 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.
Sends data to an external URLmediumData exfiltration
A POST to an outside endpoint may be telemetry or may be exfiltration; either way the mod talks to somewhere, and you should know where.
- JSON: `curl -s -X POST -H "Content-Type: application/json" -d '{"key":"value"}' "<url>"` Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
bins: [curl] What it actually says
Web Fetch
Fetch web content using curl.
Fetch page content
- HTML:
curl -sL "<url>" - Plain text (strip tags):
curl -sL "<url>" | sed 's/<[^>]*>//g' | head -100 - Headers only:
curl -sI "<url>" - Follow redirects:
curl -sL "<url>"(the -L flag follows redirects) - JSON API:
curl -s "<url>" | jq .
Download files
- Save with original name:
curl -sLO "<url>" - Save with custom name:
curl -sL -o <filename> "<url>"
POST requests
- JSON:
curl -s -X POST -H "Content-Type: application/json" -d '{"key":"value"}' "<url>" - Form data:
curl -s -X POST -d "key=value" "<url>"
Tips
- Always use
-s(silent) to suppress progress bars - Use
-Lto follow redirects - Pipe through
head -100for large pages to avoid flooding output - Use
jqfor JSON responses when available
What ships with it
3 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.
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.
- 1mo ago First seen · 46 lines · 9 tokens per session scan B dde328b604f6
web-fetch is a skill published in the GitHub repository gebruder/wirken (193 stars, last pushed 2d ago), licensed MIT. It adds 9 tokens to every session and 324 once invoked, about $0.0000 per session on Opus 5.5. A static security scan graded it B with 2 findings (sends data to an external url, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
browser-use
Direct browser control via CDP for web interaction: automation, scraping, testing, screenshots, and site/app work. Also covers hosted cloud browsers for AI agents: the browser-use Python library (Browser(usecloud=True)), Playwright, Puppeteer or any CDP client.
blocked-page-recovery
Use when a fetch fails: 403/429, paywall, WAF, bot wall.
playwright
Use when the task requires capturing or automating a real browser from the terminal.
edgeone skill scanner
A local static scanner that checks agent-skill files for security risks before they are installed or used. Static analysis examines files without running them.
web-search
This skill should be used when users need to search the web for information, find current content, look up news articles, search for images, or find videos. It uses DuckDuckGo's search API to return results in clean, formatted output (text, markdown, or JSON). Use for research, fact-checking, finding recent…
haven-orb
Read what a person sent from the haven orb on the app page: haven orb feedback notes with selector, viewport, console and requests, and haven orb console|network. Use when someone says 'haven feedback', 'haven page console', 'haven orb feedback', 'the haven orb', 'read the notes I left', 'resolve the feedback', 'wait…