repo-social-preview

repo-social-preview is a skill for Claude Code from jamestexas/agents. It costs 58 tokens per session (1,884 once invoked), scanned A, original, no licence file.

A checker for the social-preview image shown when a GitHub repository link is shared on sites such as Hacker News, Twitter, Slack, or Discord. It also explains how to upload a replacement image manually.

In plain words
What is it for?
It is for checking a repository’s OpenGraph preview image, assessing how readable it is at small sizes, and reporting possible image sources and upload steps.
Why use it?
It helps find missing or unclear preview images that can make a shared repository link harder to recognize.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit It is for checking a repository’s OpenGraph preview image, assessing how readable it is at small sizes, and reporting possible image sources and upload steps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/jamestexas/agents/repo-social-preview
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 jamestexas/agents --skill repo-social-preview
Clone the repo
git clone --depth 1 https://github.com/jamestexas/agents

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 repo-social-preview

README.md
[![agentmods](https://agentmods.dev/badge/skills/jamestexas/agents/repo-social-preview/github.svg)](https://agentmods.dev/skills/jamestexas/agents/repo-social-preview)
Your own site
<a href="https://agentmods.dev/skills/jamestexas/agents/repo-social-preview"><img src="https://agentmods.dev/badge/skills/jamestexas/agents/repo-social-preview/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 repo-social-preview

Your own site · 80×15
<a href="https://agentmods.dev/skills/jamestexas/agents/repo-social-preview"><img src="https://agentmods.dev/badge/skills/jamestexas/agents/repo-social-preview.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 58 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,884 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00058 $0.01884
Opus 5 $0.00029 $0.00942
Sonnet 5 $0.00012 $0.00377
Haiku 4.5 $0.00006 $0.00188

Measured 11d ago against content hash 03969a9ae9a9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

repo-social-preview 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 11d 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.

allowed-tools: Read Glob Grep Bash(gh *) Bash(jq *) Bash(curl *) Bash(file *)
skills/repo-social-preview/SKILL.md · 179 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. 11d ago First seen · 179 lines · 58 tokens per session scan A 03969a9ae9a9

Subscribe to this mod's changes

repo-social-preview is a skill published in the GitHub repository jamestexas/agents (2 stars, last pushed today), with no licence file. It adds 58 tokens to every session and 1,884 once invoked, about $0.0003 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 2026-08-31.

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