og

og is a skill for Claude Code from ourobx/agent-ebpf. It costs 223 tokens per session (1,693 once invoked), scanned A, original, MIT.

A setup for an app’s share preview image, browser tab icon, and install icons for apps hosted on .grok.me.

In plain words
What is it for?
Use it to configure Open Graph and X share cards, favicons, PWA icons, and app titles or colors.
Why use it?
It gives shared links and installed apps a consistent identity and prevents the browser tab from showing a generic icon.

Skill for Claude Code

Written for Claude Code: user-invocable in frontmatter. Also seen: mentions subagents; mentions AGENTS.md.

Good fit Use it to configure Open Graph and X share cards, favicons, PWA icons, and app titles or colors.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ourobx/agent-ebpf/og
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 ourobx/agent-ebpf --skill og
Clone the repo
git clone --depth 1 https://github.com/ourobx/agent-ebpf

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

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/ourobx/agent-ebpf/og"><img src="https://agentmods.dev/badge/skills/ourobx/agent-ebpf/og.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 223 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,693 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 original 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 $0.00223 $0.01693
Opus 5.5 $0.00089 $0.00677
Sonnet 5.5 $0.00045 $0.00339
Haiku 4.5 $0.00022 $0.00169

Measured 1mo ago against content hash 5c6ff71e4284, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

og 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 1mo 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.

v2/.grok/skills/og/SKILL.md · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Share cards, favicon, and app icons

A deployed app (https://{name}.grok.me) unfurls with a 1200×630 card; every app (preview included) shows a favicon in the tab. Share-card <meta> tags are not authored in __root.tsx — the injector (scripts/grok-pwa-shared.mjs) overwrites og:* and twitter:card on every HTML response. Identity data is the only thing anyone writes, and the pass writes all of it — dispatching, you seed none of it:

  • src/lib/og/site.json — not pre-seeded, created only if needed: { "title", "type"?: "x:game", "card"?: "custom", "color"?: "RRGGBB" }; title defaults to the host slug.
  • public/og.jpg — custom 1200×630 card (optional; placeholder otherwise)
  • public/x-banner.jpg — games only: 50:11 (1200×264) X feed card
  • public/favicon.svg — linked from root head(); until the pass lands the tab just shows the browser default, which fails nothing

Extend __root.tsx; never replace it wholesale (auth SSR, redesigns, skill excerpts): dropping the favicon link ships a blank tab icon no local check catches.

Decide: which card this app gets

Default: a custom card from the app's own art — games of every kind and rendering tech (Canvas/WebGL and DOM board, card, word, puzzle, quiz: a tic-tac-toe grid of divs is still a game), whimsical apps, creative tools, content- and brand-forward pages. When in doubt, make the custom card.

Plain utility apps only (converters, CRUD trackers, dashboards, notes/admin — apps whose face is the data) keep the default og.grok.me placeholder: no public/og.jpg. Its URL, the "color" knob and the rename rule: references/placeholder-card.md.

og:type for games

A game of any kind carries "type": "x:game" in src/lib/og/site.json — the pass writes it, owning that file. No hostname, never gated on a custom card, never "corrected" to website, bare game, twitter:card or an invented x:type: X's pipeline keys off that exact value. Non-games omit it. Your check, not your edit — missing it, or missing public/x-banner.jpg once a custom card exists, is a BRAND WARNING.

Read the full file on GitHub · 103 lines

Files

What ships with it

6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 1mo ago First seen · 103 lines · 223 tokens per session scan A 5c6ff71e4284

Subscribe to this mod's changes

og is a skill published in the GitHub repository ourobx/agent-ebpf (1 stars, last pushed 1mo ago), licensed MIT. It adds 223 tokens to every session and 1,693 once invoked, about $0.0009 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 2026-09-04.

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