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分类: 数据与分析无需 API Key

Parallel Extract

使用Parallel API从网页、文章、PDF和JS密集站点中提取干净Markdown,用于LLM读取指定URL内容。

person作者: normallygaussianhubclawhub

Parallel Extract

Extract clean, LLM-ready content from URLs. Handles webpages, articles, PDFs, and JavaScript-heavy sites that need rendering.

When to Use

Trigger this skill when the user asks for:

  • "read this URL", "fetch this page", "extract from..."
  • "get the content from [URL]"
  • "what does this article say?"
  • Reading PDFs, JS-heavy pages, or paywalled content
  • Getting clean markdown from messy web pages

Use Search to discover; use Extract to read.

Quick Start

parallel-cli extract "https://example.com/article" --json

CLI Reference

Basic Usage

parallel-cli extract "<url>" [options]

Common Flags

| Flag | Description | |------|-------------| | --url "<url>" | URL to extract (repeatable, max 10) | | --objective "<focus>" | Focus extraction on specific content | | --json | Output as JSON | | --excerpts / --no-excerpts | Include relevant excerpts (default: on) | | --full-content / --no-full-content | Include full page content | | --excerpts-max-chars N | Max chars per excerpt | | --excerpts-max-total-chars N | Max total excerpt chars | | --full-max-chars N | Max full content chars | | -o <file> | Save output to file |

Examples

Basic extraction:

parallel-cli extract "https://example.com/article" --json

Focused extraction:

parallel-cli extract "https://example.com/pricing" \
  --objective "pricing tiers and features" \
  --json

Full content for PDFs:

parallel-cli extract "https://example.com/whitepaper.pdf" \
  --full-content \
  --json

Multiple URLs:

parallel-cli extract \
  --url "https://example.com/page1" \
  --url "https://example.com/page2" \
  --json

Default Workflow

  1. Search with an objective + keyword queries
  2. Inspect titles/URLs/dates; choose the best sources
  3. Extract the specific pages you need (top N URLs)
  4. Answer using the extracted excerpts/content

Best-Practice Prompting

Objective

When extracting, provide context:

  • What specific information you're looking for
  • Why you need it (helps focus extraction)

Good: --objective "Find the installation steps and system requirements"

Poor: --objective "Read the page"

Response Format

Returns structured JSON with:

  • url — source URL
  • title — page title
  • excerpts[] — relevant text excerpts (if enabled)
  • full_content — complete page content (if enabled)
  • publish_date — when available

Output Handling

When turning extracted content into a user-facing answer:

  • Keep content verbatim — do not paraphrase unnecessarily
  • Extract ALL list items exhaustively
  • Strip noise: nav menus, footers, ads, "click here" links
  • Preserve all facts, names, numbers, dates, quotes
  • Include URL + publish_date for transparency

Running Out of Context?

For long conversations, save results and use sessions_spawn:

parallel-cli extract "<url>" --json -o /tmp/extract-<topic>.json

Then spawn a sub-agent:

{
  "tool": "sessions_spawn",
  "task": "Read /tmp/extract-<topic>.json and summarize the key content.",
  "label": "extract-summary"
}

Error Handling

| Exit Code | Meaning | |-----------|---------| | 0 | Success | | 1 | Unexpected error (network, parse) | | 2 | Invalid arguments | | 3 | API error (non-2xx) |

Prerequisites

Requires parallel-cli (installed and authenticated). If parallel-cli --version fails, or if a later command fails with an authentication error, tell the user to see https://docs.parallel.ai/integrations/cli and stop.

References