searcharvester-extract

Research

Fetch a web page and extract its main content as clean markdown via trafilatura. Strips navigation, ads, and footers automatically. Supports size presets (short/medium/long) and full mode with pagination for very long documents. Use after `searcharvester-search` to actually read the pages behind your URLs.

QUICK START

How to use this skill

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Prompt to paste

I want to install this Agent Skill for this project in Codex.

Source SKILL.md: https://github.com/vakovalskii/searcharvester/blob/HEAD/hermes_skills/searcharvester-extract/SKILL.md

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First, summarize what it does, its dependencies, license status if identifiable, and any risks. Show the exact files you propose to add under .agents/skills/searcharvester-extract/. Do not write files or run scripts until I approve.

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Searcharvester Extract

When to Use

You have a specific URL and need its readable content (articles, docs, wiki pages).
You followed up a searcharvester-search result and want to read it.
You need a clean markdown version of a page for citation quoting.
A document is too long for a single read — the f preset paginates it.

Do not use this skill for:

Discovery of URLs (use searcharvester-search first).
Non-HTML resources (PDFs, images) — the service expects HTML pages.

Procedure

The extract endpoint lives at $SEARCHARVESTER_URL (default http://tavily-adapter:8000). Use the helper script.

Size presets

Preset	Chars returned	Use case
`s`	5 000	Quick summary, LLM with small context
`m`	10 000	Default — most articles
`l`	25 000	Deep reading
`f`	full (paginated by 25 000)	Very long docs; take additional pages via page param

Single page extraction

python3 SKILL_DIR/scripts/extract.py --url "https://en.wikipedia.org/wiki/Docker_(software)" --size m

Full document with pagination

# Page 1 (also returns metadata: total pages, id for follow-up pages)
python3 SKILL_DIR/scripts/extract.py --url "https://long.example.com/article" --size f

# Fetch page 2 using id from first response
python3 SKILL_DIR/scripts/extract.py --id b275618ca10e6c62 --page 2

Output

JSON printed to stdout:

{
  "id": "b275618ca10e6c62",
  "url": "...",
  "title": "Page title",
  "size": "m",
  "content": "# Markdown body\n...",
  "chars": 10000,
  "total_chars": 33430,
  "pages": {"current": 1, "total": 1, "page_size": 10000}
}

Use content directly — it's ready markdown with headings, lists, tables, links.

Parameters reference

Flag	Values	Default
`--url`	URL	required (unless `--id` given)
`--size`	`s`/`m`/`l`/`f`	`m`
`--id`	16-char hex (from previous response)	—
`--page`	int ≥ 1	1 (use with `--id`)

Pitfalls

422 error: trafilatura couldn't find extractable main-content (the page is almost entirely JavaScript or ads). Try another source from your search results.
502 error: the site blocked us or returned an error. Try another URL.
Cache expired: /extract/{id}/{page} returns 404 after 30 minutes. Re-run with --url --size f to get a fresh id.
total_chars >> chars: your content is truncated. Either raise to --size l, or switch to --size f and paginate.

Verification

Successful response has content non-empty and chars > 0. If you need the full document, check total_chars vs chars and decide whether to fetch more pages.