in-app-browser

in-app-browser is a skill for Claude Code, Codex from proma-ai/Proma. It costs 170 tokens per session (3,171 once invoked), scanned A, original, AGPL-3.0.

A guide for using Proma’s built-in controlled web browser to open, view, search, or operate websites.

In plain words
What is it for?
Use it to browse sites such as X, LinkedIn, or Xiaohongshu, inspect screenshots, or preview local HTML and React pages.
Why use it?
It explains how to handle sites that need an interactive browser, including logged-in pages and pages that load content dynamically.

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 to browse sites such as X, LinkedIn, or Xiaohongshu, inspect screenshots, or preview local HTML and React pages.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/proma-ai/proma/in-app-browser
About the project

Proma is a local-first AI desktop application that combines multi-model chat, general-purpose agents, workspaces, skills, MCP servers, remote bots, and shared memory. People use it as a workspace for personal workflows, letting agents handle files, browser tasks, long-running jobs, and collaborative subtasks while storing sessions and configuration locally.

proma-ai/Proma · 2,158 stars · on GitHub · proma.cool

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 proma-ai/Proma --skill in-app-browser
Clone the repo
git clone --depth 1 https://github.com/proma-ai/Proma

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 in-app-browser

README.md
[![agentmods](https://agentmods.dev/badge/skills/proma-ai/proma/in-app-browser/github.svg)](https://agentmods.dev/skills/proma-ai/proma/in-app-browser)
Your own site
<a href="https://agentmods.dev/skills/proma-ai/proma/in-app-browser"><img src="https://agentmods.dev/badge/skills/proma-ai/proma/in-app-browser/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 in-app-browser

Your own site · 80×15
<a href="https://agentmods.dev/skills/proma-ai/proma/in-app-browser"><img src="https://agentmods.dev/badge/skills/proma-ai/proma/in-app-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 170 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,171 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00170 $0.03171
Opus 5 $0.00085 $0.01586
Sonnet 5 $0.00034 $0.00634
Haiku 4.5 $0.00017 $0.00317

Measured 10d ago against content hash 5a38a1c4c0e0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

in-app-browser 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 10d 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.

apps/electron/default-skills/in-app-browser/SKILL.md · 88 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

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. 10d ago First seen · 88 lines · 170 tokens per session scan A 5a38a1c4c0e0

Subscribe to this mod's changes

in-app-browser is a skill published in the GitHub repository proma-ai/Proma (2,158 stars, last pushed today), licensed AGPL-3.0. It adds 170 tokens to every session and 3,171 once invoked, about $0.0009 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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