CBrowser

CBrowser is a skill for Claude Code, Codex from alexandriashai/cbrowser. It costs 142 tokens per session (11,426 once invoked), scanned A, original, no licence file.

An AI browser-automation skill that models user behaviour while navigating websites. It includes browser tools, user personas, cognitive traits, journey replay, and screen recordings with frame details.

In plain words
What is it for?
Use it for browser automation, simulated user journeys, trace replay, and creating GIF, WebP, or WebM screen captures.
Why use it?
It provides a way to automate browser tasks while recording how the interaction unfolds.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Use it for browser automation, simulated user journeys, trace replay, and creating GIF, WebP, or WebM screen captures.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/alexandriashai/cbrowser/skill
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 alexandriashai/cbrowser --skill skill
Clone the repo
git clone --depth 1 https://github.com/alexandriashai/cbrowser

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.

agentmods badge for CBrowser

README.md
[![agentmods](https://agentmods.dev/badge/skills/alexandriashai/cbrowser/skill/github.svg)](https://agentmods.dev/skills/alexandriashai/cbrowser/skill)
Your own site
<a href="https://agentmods.dev/skills/alexandriashai/cbrowser/skill"><img src="https://agentmods.dev/badge/skills/alexandriashai/cbrowser/skill/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.

agentmods 80×15 button for CBrowser

Your own site · 80×15
<a href="https://agentmods.dev/skills/alexandriashai/cbrowser/skill"><img src="https://agentmods.dev/badge/skills/alexandriashai/cbrowser/skill.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 142 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 11,426 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00142 $0.11426
Opus 5.5 $0.00057 $0.04570
Sonnet 5.5 $0.00028 $0.02285
Haiku 4.5 $0.00014 $0.01143

Measured 1mo ago against content hash b5421566b364, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

CBrowser 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 1mo ago.

The scan reads SKILL.md. This mod also ships 1 executable file (Tools/CBrowser.ts), 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.

Makes network callslowCapability

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

curl -H "Authorization: Bearer your-api-key" https://your-server/mcp
skill/SKILL.md · 979 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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. 1mo ago First seen · 979 lines · 142 tokens per session scan A b5421566b364

Subscribe to this mod's changes

CBrowser is a skill published in the GitHub repository alexandriashai/cbrowser (19 stars, last pushed yesterday), with no licence file. It adds 142 tokens to every session and 11,426 once invoked, about $0.0006 per session on Opus 5.5. 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 2026-08-30.

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