extract-web-data

A command for turning website content into structured JSON using a user-defined list of fields.

In plain words
What is it for?
Use it to collect consistent records from websites, such as product details, company information, or listings.
Why use it?
It removes the need to manually copy information from pages and keeps missing or unsupported values visible.

Command

Install

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.

agentmods
npx agentmods add commands/context-dot-dev/cursor-plugin/extract-web-data
Clone the repo
git clone --depth 1 https://github.com/context-dot-dev/cursor-plugin
Per session 21 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 152 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5 $0.00021 $0.00152
Opus 5 $0.00010 $0.00076
Sonnet 5 $0.00004 $0.00030
Haiku 4.5 $0.00002 $0.00015

Measured yesterday against content hash 1f8520e28a0d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

extract-web-data 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 yesterday.

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.

commands/extract-web-data.md · 13 lines

What it actually says

Extract structured data from a website

  1. Obtain the starting URL and the exact fields the user needs.
  2. Build the smallest JSON Schema that represents those fields. Mark only genuinely required fields as required and describe ambiguous fields.
  3. Confirm the context MCP server is enabled and authenticated. If authentication is required, use the connect-context-dev skill.
  4. Call web-extract with the URL, schema, and concise instructions. Enable fact checking when every value must be stated on the source pages.
  5. Return the structured result without silently filling missing fields. Explain unsupported or empty values plainly.
Changes

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.

  1. yesterday First seen · 13 lines · 21 tokens per session scan A 1f8520e28a0d

Subscribe to this mod's changes

extract-web-data is a command published in the GitHub repository context-dot-dev/cursor-plugin (4 stars, last pushed 14d ago), licensed MIT. It adds 21 tokens to every session and 152 once invoked, about $0.0001 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 2026-08-31.