What is tavily-extract?

A method for retrieving readable content from web pages whose content appears only after JavaScript runs or that block ordinary requests.

Use it to extract rendered text from dashboards, documentation sites, leaderboards, and other JavaScript-based or bot-protected pages.

It helps when a normal fetch returns an empty page, loading screen, incomplete content, or an access-denied response.

tavily-extract — Skill for Claude Code by shaharsha/claude-skills

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.

Any agent

npx skills add shaharsha/claude-skills --skill tavily-extract

Clone the repo

git clone --depth 1 https://github.com/shaharsha/claude-skills

Made for: Claude Code.

Or install utilities, the plugin that ships this one along with the rest of its 5 skills.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/shaharsha/claude-skills/tavily-extract/github.svg)](https://agentmods.dev/skills/shaharsha/claude-skills/tavily-extract)

Your own site

<a href="https://agentmods.dev/skills/shaharsha/claude-skills/tavily-extract"><img src="https://agentmods.dev/badge/skills/shaharsha/claude-skills/tavily-extract/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/shaharsha/claude-skills/tavily-extract"><img src="https://agentmods.dev/badge/skills/shaharsha/claude-skills/tavily-extract.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 222 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,345 The whole file, excluding the scripts and references it only reads on demand.

Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.

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.

Model	Per session	Once invoked
Fable 5.1	$0.00222	$0.01345
Opus 5.5	$0.00089	$0.00538
Sonnet 5.5	$0.00044	$0.00269
Haiku 4.5	$0.00022	$0.00135

Measured 2mo ago against content hash e65e751f8c5e, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

tavily-extract scanned grade B with 2 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 2mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/tavily_extract.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

mkdir -p ~/.config/tavily && printf 'tvly-...' > ~/.config/tavily/api-key && chmod 600 ~/.config/tavily/api-key

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

description: Use when a web page won't come through a normal fetch — WebFetch (or curl) returns an empty shell, a "Loading…" skeleton, or a 403/Forbidden. That happens on JavaScript-rendered single-page apps (React/Next.

skills/tavily-extract/SKILL.md · 70 lines

How it starts

The opening of the file, as written. The whole thing — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Tavily Extract

Core principle

A normal fetch returns the raw HTML. For a JavaScript-rendered SPA that HTML is an empty shell (content is hydrated in the browser), and bot-protected hosts answer 403. Tavily runs the page's JavaScript and fetches through browser-like infrastructure, so it returns the rendered content as markdown — the one thing WebFetch structurally can't do (it executes no JS and is more easily blocked).

When to use / when NOT

Use the cheapest tool that works, in this order:

WebFetch first — free, built in, and it handles most sites, including many JS-framework doc pages that server-render their content. Same domain can differ: developers.openai.com/api/docs/... server-renders and WebFetch reads it; developers.openai.com/cookbook/... is client-rendered and comes back a 404 shell.
This skill (Tavily Extract) — when WebFetch returns a shell/skeleton, truncated content, or a 403. This is the JS-rendering + anti-block tool.
The site's own API / embedded JSON — for structured data (leaderboards, metrics), a real API beats any scrape. Artificial Analysis, for example, exposes GET https://artificialanalysis.ai/api/v2/data/llms/models with an x-api-key; its rendered charts are JS data-viz that serialize to axis labels, not numbers. When you need exact figures, prefer the API.

Do not reach for this on pages WebFetch already handles — it costs credits and adds a hop.

Setup (one-time)

Needs a Tavily API key (get one at https://app.tavily.com). The script reads it in this order: $TAVILY_API_KEY, then ~/.config/tavily/api-key. Set either:

export TAVILY_API_KEY=tvly-...
# or, persistent:
mkdir -p ~/.config/tavily && printf 'tvly-...' > ~/.config/tavily/api-key && chmod 600 ~/.config/tavily/api-key

Never hardcode the key in a command you commit or in this repo. (Shahar's key already lives in api-keys.md under "Tavily" and in ~/.config/tavily/api-key.)

Quick reference

Read the full file on GitHub · 70 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago First seen · 70 lines · 222 tokens per session scan B e65e751f8c5e

Subscribe to this mod's changes

tavily-extract is a skill published in the GitHub repository shaharsha/claude-skills (6 stars, last pushed today), licensed MIT. It adds 222 tokens to every session and 1,345 once invoked, about $0.0009 per session on Opus 5.5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Research

tavily-extract next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
tavily-extractshaharsha/claude-skills	Skill	6	today	MIT	B	222	Claude Code
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code

tavily-extract