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 eristoddle/agent-skills --skill fetch-anythinggit clone --depth 1 https://github.com/eristoddle/agent-skillsWrote 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/eristoddle/agent-skills/fetch-anything)<a href="https://agentmods.dev/skills/eristoddle/agent-skills/fetch-anything"><img src="https://agentmods.dev/badge/skills/eristoddle/agent-skills/fetch-anything/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/eristoddle/agent-skills/fetch-anything"><img src="https://agentmods.dev/badge/skills/eristoddle/agent-skills/fetch-anything.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00150 | $0.01382 |
| Opus 5 | $0.00075 | $0.00691 |
| Sonnet 5 | $0.00030 | $0.00276 |
| Haiku 4.5 | $0.00015 | $0.00138 |
Grade A, and why
fetch-anything 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.
Do **not** use the `curl … install.sh` one-liner or `firecrawl init` — those push How it starts
The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.
<essential_principles>
What This Skill Does
Turns a known URL into clean, token-cheap markdown. It is a three-rung escalation ladder — defuddle → crawl4ai → firecrawl — trying the cheapest reliable method first and climbing only when a rung actually fails. It is NOT a search engine and NOT a one-shot wrapper around a single tool.
Core Rules
- Never declare a fetch impossible. A terminal failure is not an answer — it routes to
workflows/debug-research.md, which finds a workaround or proposes a new handler. "Can't be scraped" is a bug in this skill, not a fact. - Three rungs, in cost order. defuddle (free, cheapest tokens) → crawl4ai (free, highest success rate — the workhorse) → firecrawl (paid API, the backstop). Climb only on real failure, and say so when the paid rung is what worked.
- Bounded output, always. Write fetched pages to a file and read a bounded slice; never let a full page render into the transcript. A single large page can end a session.
- A failure carries its error forward. Every rung that fails appends its actual error to a running log that the next rung — and ultimately debug-research — receives.
- Extend, don't fork. New site needs special handling? Add a row to
references/handler-registry.mdand one file underworkflows/handlers/. The router and ladder never change.
</essential_principles>
I need a URL. If the user gave one, use it. If they described a page without a URL, ask for the exact link.
Once I have the URL, inspect it and route immediately — no menu, no confirmation:
- Read
references/handler-registry.md. If the URL's domain matches a registered handler, load that handler workflow (e.g.workflows/handlers/reddit.md) and follow it. - If no handler matches, go to
workflows/fetch-ladder.md. - If the chosen path exhausts every rung and still fails, go to
workflows/debug-research.mdwith the URL and the accumulated error log.
Capture an optional hint if the user gave one ("just the comments", "the main article body", "the price table") and pass it through as the extraction target.
What ships with it
6 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.
- 8d ago First seen · 86 lines · 150 tokens per session scan A 8c185ad132f2
fetch-anything is a skill published in the GitHub repository eristoddle/agent-skills (2 stars, last pushed 13d ago), licensed MIT. It adds 150 tokens to every session and 1,382 once invoked, about $0.0007 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 2026-08-31.
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