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dotfiles: Skill for Claude Code

.claude/skills/og-image/SKILL.md

og-image is a skill for Claude Code from dgalarza/dotfiles. It costs 102 tokens per session (1,070 once invoked), scanned A, original, no licence file.

A writing and visual-specification guide for Open Graph images, which are preview images shown when a web page is shared on social networks. It targets 1200×630 images for damiangalarza.com.

In plain words
What is it for?
Use it when creating or updating an OG image, social image, Twitter card image, or other link preview.
Why use it?
It defines what text and visual details a social sharing preview should contain.

Skill for Claude Code

Written for Claude Code: installed under .claude/.

This is dgalarza/dotfiles's own configuration. It tells Claude Code how to work on dotfiles itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything dotfiles configures →

not rated 4repo +1 2mo ago A scan 102 tokens no licence
View source ↗ dgalarza/dotfiles
Reuse

Borrowing it

Nothing to install: this file belongs to dgalarza/dotfiles. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/dgalarza/dotfiles/main/.claude/skills/og-image/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/dgalarza/dotfiles

Made for: Claude Code.

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 og-image

README.md
[![agentmods](https://agentmods.dev/badge/skills/dgalarza/dotfiles/og-image/github.svg)](https://agentmods.dev/skills/dgalarza/dotfiles/og-image)
Your own site
<a href="https://agentmods.dev/skills/dgalarza/dotfiles/og-image"><img src="https://agentmods.dev/badge/skills/dgalarza/dotfiles/og-image/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 og-image

Your own site · 80×15
<a href="https://agentmods.dev/skills/dgalarza/dotfiles/og-image"><img src="https://agentmods.dev/badge/skills/dgalarza/dotfiles/og-image.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 102 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,070 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.
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 $0.00102 $0.01070
Opus 5.5 $0.00041 $0.00428
Sonnet 5.5 $0.00020 $0.00214
Haiku 4.5 $0.00010 $0.00107

Measured 2mo ago against content hash bf0d9d8c572c, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

og-image 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 2mo 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.

.claude/skills/og-image/SKILL.md · 99 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. 2mo ago First seen · 99 lines · 102 tokens per session scan A bf0d9d8c572c

Subscribe to this mod's changes

og-image is a skill published in the GitHub repository dgalarza/dotfiles (4 stars, last pushed 2mo ago), with no licence file. It adds 102 tokens to every session and 1,070 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-08-31.

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Related

og-image compared with skills from other repositories

og-image next to 6 skills from other repositories
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visual-ralphYeachan-Heo/oh-my-codexSkill34k3d agoMITA52Codex
glance-canonical-layoutsandroid/skillsSkill10kyesterdayApache-2.0A56Claude Code
accessibilitymicrosoft/hve-coreSkill1.6kyesterdayMITA47Claude Code