parity-browser

parity-browser is an agent for coding agents from paddo/claude-tools. It costs 13 tokens per session (1,182 once invoked), scanned A, original, no licence file.

A browser-control tool for comparing websites or pages through browser sessions.

In plain words
What is it for?
Performing browser-based site comparisons with agent-browser sessions.
Why use it?
It helps inspect how two sites or versions differ by using a browser rather than relying only on source code.

Agent

Part of the headless plugin — 3 commands, 3 agents shipped together

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 agents/paddo/claude-tools/parity-browser
Clone the repo
git clone --depth 1 https://github.com/paddo/claude-tools

Or install headless, the plugin that ships this one along with the rest of its 3 commands, 3 agents.

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 parity-browser

README.md
[![agentmods](https://agentmods.dev/badge/agents/paddo/claude-tools/parity-browser.svg)](https://agentmods.dev/agents/paddo/claude-tools/parity-browser)
Your own site
<a href="https://agentmods.dev/agents/paddo/claude-tools/parity-browser"><img src="https://agentmods.dev/badge/agents/paddo/claude-tools/parity-browser.svg" alt="Measured on agentmods" height="20"></a>
Per session 13 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,182 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00013 $0.01182
Opus 5 $0.00006 $0.00591
Sonnet 5 $0.00003 $0.00236
Haiku 4.5 $0.00001 $0.00118

Measured 3d ago against content hash f817a6dd7acf, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

parity-browser 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.

**CRITICAL: You may ONLY use `agent-browser` commands (and video recording commands shown below). Do NOT use mcp-cli, curl, wget, or any other tools.**
plugins/headless/agents/parity-browser.md · 159 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

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. 3d ago First seen · 159 lines · 13 tokens per session scan A f817a6dd7acf

Subscribe to this mod's changes

parity-browser is an agent published in the GitHub repository paddo/claude-tools (35 stars, last pushed 1mo ago), with no licence file. It adds 13 tokens to every session and 1,182 once invoked, about $0.0001 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 2026-08-30.

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