A set of instructions for finding and reading information on the internet, including public pages and some interactive or login-required sites.

Use it for web searches, current-information research, documentation lookup, news summaries, and reading named online platforms or browser sessions.

It helps an agent choose an appropriate way to search, fetch, or interact with online sources when ordinary page retrieval is insufficient.

web-access — Skill for Claude Code and Codex by desirecore: A set of instructions for finding and reading information…

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 skills/desirecore/market/web-access

Any agent

npx skills add desirecore/market --skill web-access

Clone the repo

git clone --depth 1 https://github.com/desirecore/market

Made for: Claude Code, Codex.

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/desirecore/market/web-access.svg)](https://agentmods.dev/skills/desirecore/market/web-access)

Your own site

<a href="https://agentmods.dev/skills/desirecore/market/web-access"><img src="https://agentmods.dev/badge/skills/desirecore/market/web-access.svg" alt="Measured on agentmods" height="20"></a>

Per session 255 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 9,601 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. 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.

Model	Per session	Once invoked
Fable 5	$0.00255	$0.09601
Opus 5	$0.00128	$0.04800
Sonnet 5	$0.00051	$0.01920
Haiku 4.5	$0.00026	$0.00960

Measured 3d ago against content hash 450b6a198f5f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

web-access scanned grade A with 1 finding 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 3d 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.

Makes network callslowCapability

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

Do not replace this probe with `curl`: a refused connection cannot distinguish “browser not installed”

skills/web-access/SKILL.md · 599 lines

How it starts

The opening of the file, as written. The whole thing — 599 lines — stays where its author put it; the contents beside it link to each section on GitHub.

web-access skill

L0: One-line Summary

A web-access toolkit — search public pages, optimize fetches via Jina Reader, reach/interact with/read login-gated sites through the governed built-in browser, and drive the user's named Chrome/Edge/Chromium over CDP when requested.

L1: Overview & Use Cases

Capability

web-access is a procedural skill that provides four complementary layers of web access:

L1 (WebSearch + WebFetch): public, static pages
L2 (Jina Reader): JS-rendered heavy pages, saving tokens by default
L3 (governed built-in browser, capability surface completed in v3.0): reach, interact with, and read logged-in / interactive sites — isolated BrowserSpace per task, zero Python dependency, every action carries a signed receipt. Bulk text extraction (page.extract-text), discriminated waits (page.wait), and code mode (BrowserScript) all close the loop inside this layer
L3-external (the user's named Chrome/Edge/Chromium, opened through governed CDP tools and attached via isolated Python Playwright only for advanced interaction): take this route only when the user names their own browser or explicitly accepts it after you explain why — the login state the user established manually in the DesireCore-isolated external profile, the visible window, and the user's ability to take over at any moment

A note of history on L3-external: v3.0 deleted it outright, on the grounds that "every technical reason it existed for (no bulk text channel, evaluate unusable, screenshots must activate-serialize) is now covered by the built-in browser". That technical judgement was correct — as a fallback for when the built-in browser isn't enough, it genuinely isn't needed any more. But the deletion took with it a completely different use case: the user wanting their own browser. That has nothing to do with capability, and the built-in browser cannot stand in for it, so v3.2 restores it as a peer option triggered by user intent. Note it is no longer a fallback; see "Two browsers — pick by user intent" below.

Read the full file on GitHub · 599 lines

Files

What ships with it

11 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.

3d ago First seen · 599 lines · 255 tokens per session scan A 450b6a198f5f

Subscribe to this mod's changes

web-access is a skill published in the GitHub repository desirecore/market (2 stars, last pushed 3d ago), licensed MIT. It adds 255 tokens to every session and 9,601 once invoked, about $0.0013 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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