favicon

favicon is a skill for Claude Code, Codex from brianlovin/agent-config. It costs 28 tokens per session (2,283 once invoked), scanned B, original, no licence file.

A skill for creating website favicon files, the small icons shown in browser tabs and bookmarks, from a source image. It also updates the HTML to use them.

In plain words
What is it for?
Use it when adding or replacing favicons in a web project from an existing image.
Why use it?
It removes the manual work of making the required icon files and linking them correctly. This helps a site display its identity consistently in browsers.

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/brianlovin/agent-config/favicon
Any agent
npx skills add brianlovin/agent-config --skill favicon
Clone the repo
git clone --depth 1 https://github.com/brianlovin/agent-config

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 favicon

README.md
[![agentmods](https://agentmods.dev/badge/skills/brianlovin/agent-config/favicon.svg)](https://agentmods.dev/skills/brianlovin/agent-config/favicon)
Your own site
<a href="https://agentmods.dev/skills/brianlovin/agent-config/favicon"><img src="https://agentmods.dev/badge/skills/brianlovin/agent-config/favicon.svg" alt="Measured on agentmods" height="20"></a>
Per session 28 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,283 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 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 $0.00028 $0.02283
Opus 5 $0.00014 $0.01141
Sonnet 5 $0.00006 $0.00457
Haiku 4.5 $0.00003 $0.00228

Measured 5d ago against content hash dcc1e91edf90, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

favicon scanned grade B 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 5d 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

- **Linux**: `sudo apt install imagemagick`
skills/favicon/SKILL.md · 225 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. 5d ago First seen · 225 lines · 28 tokens per session scan B dcc1e91edf90

Subscribe to this mod's changes

favicon is a skill published in the GitHub repository brianlovin/agent-config (364 stars, last pushed 5mo ago), with no licence file. It adds 28 tokens to every session and 2,283 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (asks for root). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.