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BF webclaw

Web extraction for LLMs and agents. Scrape, crawl, map, search, extract, summarize, diff, monitor, and research any URL into clean Markdown, text, or JSON, including pages that block bots or render with JavaScript. Use when you need reliable web content, the built-in web_fetch fails, or you need structured data from a page.

ClawHub Agent Skills author: Valerio v1.0.0 MIT-0 3 files body ≈ 7 841 tokens Open the sourceclawhub.ai↗ analyzed 21 h ago

Web extraction for LLMs and agents.

As a process F 36/100 · Will not run — References files that are not bundled: scripts/webclaw.py

IntegrationGitHubYouTubeShopifyAI and agentsWriting and documentsMarketingtype and topics are labelled automatically from the skill text
Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode
JSON
Technical rating
B
87/100
safety, quality, tests
Safety 60%
100
Quality 40%
67
Run on models
none yet
Process rating
F
36/100
Will not run
References files that are not bundled: scripts/webclaw.py
Tools and files w 18
0
Result and completion w 14
0
Inputs and preconditions w 11
0
the three weakest of ten parameters · all ten

How to improve

  1. The SKILL.md body is over 5,000 tokens: move reference detail into references/ and load it when needed.
  2. The text references files that are not there: add them or drop the references.
For the model run — optional
  • Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
  • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 0

✓ No critical or high findings

Files scanned: 0. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning body-long SKILL.md body ≈ 7841 tokens (recommended < 5000); move details to references/
  • warning missing-ref reference to a missing file: scripts/webclaw.py
  • note frontmatter-key unknown frontmatter key "homepage"

Process rating: all ten parameters 36/100

Will not run. References files that are not bundled: scripts/webclaw.py
  • 0Tools and files. 1 referenced file(s) missing: scripts/webclaw.py
  • 0Result and completion. Does not say what the result is
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 0Progress reporting. Says nothing while it works
  • 20When it triggers. No condition that starts the skill
  • 30Running it twice. 9 mutating operations with no state check
  • 40Consistency. Frontmatter name (webclaw) differs from the folder (webclaw-extraction)
  • 70Execution cost. Instruction body is 7841 tokens
  • 100Steps. 36 steps
  • 100Failures and branches. 1 branches, has a failure section
  • low The response is described with custom markup (3 tags): a typed call is more reliable

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

  • +5Description has no quoted example phrases that should trigger the skill
  • +4Description does not say when NOT to use the skill (false activations)
  • +3Output format is not stated: the model decides each time
  • +1No license
  • +2Single-language instructions
  • +3Description length 325: enough signal without eating the budget
  • +4Structure: 26 headings
  • +3Step-by-step instructions: 36 items
  • +4Has examples (41 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 67.

External checks

ClawHub: suspicious
This web extraction skill is mostly coherent, but it needs review because it routes data through a third-party API, supports persistent web monitors, and encourages endpoint discovery without clear authorization limits.
LLM: suspicious (medium) · VirusTotal: · 16 Jun 2026