profile-browsing

profile-browsing is a skill for Claude Code, Codex from bitsocialnet/5chan. It costs 88 tokens per session (2,034 once invoked), scanned A, original, GPL-3.0.

Profile app performance while browsing, collecting Web Vitals and React rerender data via react-scan. Orchestrates sequential profiler subagents via playwright-cli to capture navigation timing, long tasks, layout shifts, LCP, React commit counts, render bursts, and per-component render data without saturating the…

Skill for Claude CodeCodex

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/bitsocialnet/5chan/profile-browsing
Any agent
npx skills add bitsocialnet/5chan --skill profile-browsing
Clone the repo
git clone --depth 1 https://github.com/bitsocialnet/5chan

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 profile-browsing

README.md
[![agentmods](https://agentmods.dev/badge/skills/bitsocialnet/5chan/profile-browsing.svg)](https://agentmods.dev/skills/bitsocialnet/5chan/profile-browsing)
Your own site
<a href="https://agentmods.dev/skills/bitsocialnet/5chan/profile-browsing"><img src="https://agentmods.dev/badge/skills/bitsocialnet/5chan/profile-browsing.svg" alt="Measured on agentmods" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,034 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 $0.00088 $0.02034
Opus 5 $0.00044 $0.01017
Sonnet 5 $0.00018 $0.00407
Haiku 4.5 $0.00009 $0.00203

Measured 2d ago against content hash 1354f9af589d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

profile-browsing 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 2d 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.

curl -sf https://5chan.localhost -o /dev/null && echo "OK" || echo "NOT RUNNING"
.claude/skills/profile-browsing/SKILL.md · 165 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-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. 2d ago First seen · 165 lines · 88 tokens per session scan A 1354f9af589d

Subscribe to this mod's changes

profile-browsing is a skill published in the GitHub repository bitsocialnet/5chan (132 stars, last pushed 3d ago), licensed GPL-3.0. It adds 88 tokens to every session and 2,034 once invoked, about $0.0004 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 2026-09-01.

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