Getting it into your agent
This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.
/plugin marketplace add romek-rozen/cc-crawl4ai/plugin install cc-crawl4aiWrote 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/romek-rozen/cc-crawl4ai/crawl4ai)<a href="https://agentmods.dev/skills/romek-rozen/cc-crawl4ai/crawl4ai"><img src="https://agentmods.dev/badge/skills/romek-rozen/cc-crawl4ai/crawl4ai/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/romek-rozen/cc-crawl4ai/crawl4ai"><img src="https://agentmods.dev/badge/skills/romek-rozen/cc-crawl4ai/crawl4ai.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 | $0.00047 | $0.00820 |
| Opus 5 | $0.00023 | $0.00410 |
| Sonnet 5 | $0.00009 | $0.00164 |
| Haiku 4.5 | $0.00005 | $0.00082 |
Grade A, and why
crawl4ai scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Crawl4AI
Use the bundled non-MCP CLI. Every invocation must use the resolved plugin and project placeholders:
"${CLAUDE_PLUGIN_ROOT}/bin/crawl4ai" crawl "URL" --project-root "${CLAUDE_PROJECT_DIR}" --runtime-root "${CLAUDE_PLUGIN_DATA}" [options]
Quote every argument. Never concatenate user input into a shell fragment. The CLI validates parameters and invokes subprocesses without a shell.
Choose a mode
Compact single-page scrape (preferred for reading)
"${CLAUDE_PLUGIN_ROOT}/bin/crawl4ai" crawl "https://example.com" \
--project-root "${CLAUDE_PROJECT_DIR}" --runtime-root "${CLAUDE_PLUGIN_DATA}" \
--extractor trafilatura --output-format markdown
Trafilatura supports only a single page and markdown, md, or text. Markdown formatting and tables are retained by default. Add --include-links, --include-images, --no-tables, or --no-include-formatting only when requested. It saves both extracted content and sibling .raw.html.
For query-focused content, add:
--bm25-query "specific search terms" --bm25-threshold 1.0
BM25 runs after Trafilatura when both are selected. A higher threshold returns fewer structural chunks.
Regular single-page Crawl4AI output
Use --output-format markdown (default), markdown-fit, or all. md and md-fit are aliases. --question "..." asks Crawl4AI a natural-language question and may require a configured provider.
Bounded multi-page crawl
Always set a traversal and explicit page cap:
--deep-crawl bfs --max-pages 10
bfs: broad discovery.dfs: follow branches deeply.best-first: prioritize relevant pages.- Use Markdown, Markdown-fit, or all output.
- Do not combine deep crawl with Trafilatura, BM25, question mode, or JSON extraction.
Structured JSON extraction
Use --output-format json and exactly one extraction strategy:
- LLM:
--json-extract "Extract product name and price"(requires Crawl4AI LLM provider configuration). - Deterministic CSS/XPath:
--schema-path "/absolute/schema.json" --extraction-config "/absolute/config.yaml".
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.
- 10d ago First seen · 90 lines · 47 tokens per session scan A 9aa2231fa2b5
crawl4ai is a skill published in the GitHub repository romek-rozen/cc-crawl4ai (12 stars, last pushed 29d ago), licensed MIT. It adds 47 tokens to every session and 820 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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