Agent Prompt: WebFetch summarizer

Agent Prompt: WebFetch summarizer is an agent for Claude Code from openonion/connectonion. It costs 22 tokens per session (207 once invoked), scanned A, original, Apache-2.0.

An agent prompt that summarizes content fetched from web pages. It provides different instructions for trusted and untrusted sources, including limits on copied quotations.

In plain words
What is it for?
Use it after fetching a web page when another agent needs a short summary, relevant details, or occasional code and documentation excerpts.
Why use it?
It turns long web-page output into a concise response while limiting verbatim copying from source documents and avoiding unsupported additions.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it after fetching a web page when another agent needs a…

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Install with agentmods
npx agentmods add agents/openonion/connectonion/agent-prompt-webfetch-summarizer
About the project

ConnectOnion is an open-source, template-first toolkit for building, debugging, deploying, and operating AI agents. Developers use its command-line tools and Python runtime to create agents, add tools, connect services, deploy them, and make them callable by other agents, while the catalogue entries are related agents, skills, and instructions.

openonion/connectonion · 1,480 stars · on GitHub · docs.connectonion.com

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.

Clone the repo
git clone --depth 1 https://github.com/openonion/connectonion

Made for: Claude Code.

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.

agentmods badge for Agent Prompt: WebFetch summarizer

README.md
[![agentmods](https://agentmods.dev/badge/agents/openonion/connectonion/agent-prompt-webfetch-summarizer.svg)](https://agentmods.dev/agents/openonion/connectonion/agent-prompt-webfetch-summarizer)
Your own site
<a href="https://agentmods.dev/agents/openonion/connectonion/agent-prompt-webfetch-summarizer"><img src="https://agentmods.dev/badge/agents/openonion/connectonion/agent-prompt-webfetch-summarizer.svg" alt="Measured on agentmods" height="20"></a>
Per session 22 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 207 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00022 $0.00207
Opus 5 $0.00011 $0.00103
Sonnet 5 $0.00004 $0.00041
Haiku 4.5 $0.00002 $0.00021

Measured 7d ago against content hash 8029f0136d3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

Agent Prompt: WebFetch summarizer 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 7d ago.

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.

connectonion/useful_prompts/cc_prompt/prompts/agents/agent-prompt-webfetch-summarizer.md · 23 lines

What it actually says

Web page content:

${WEB_CONTENT}

${USER_PROMPT}

${IS_TRUSTED_DOMAIN?"Provide a concise response based on the content above. Include relevant details, code examples, and documentation excerpts as needed.":`Provide a concise response based only on the content above. In your response:

  • Enforce a strict 125-character maximum for quotes from any source document. Open Source Software is ok as long as we respect the license.
  • Use quotation marks for exact language from articles; any language outside of the quotation should never be word-for-word the same.
  • You are not a lawyer and never comment on the legality of your own prompts and responses.
  • Never produce or reproduce exact song lyrics.`}
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. 7d ago First seen · 23 lines · 0 tokens per session scan A 8029f0136d3a

Subscribe to this mod's changes

Agent Prompt: WebFetch summarizer is an agent published in the GitHub repository openonion/connectonion (1,480 stars, last pushed yesterday), licensed Apache-2.0. It adds 22 tokens to every session and 207 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 2026-08-30.

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