social-poster

social-poster is a skill for Claude Code, Codex from vanthienha199/openclaw-skills. It costs 91 tokens per session (907 once invoked), scanned A, original, MIT.

A writing skill that adapts one idea into drafts for Twitter/X, LinkedIn, Reddit, Dev.to, and Hacker News.

In plain words
What is it for?
Use it to prepare platform-specific social posts, including threads, professional updates, Reddit submissions, technical articles, and Hacker News posts.
Why use it?
It removes the need to rewrite the same announcement for each platform's audience, length, and formatting expectations.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to prepare platform-specific social posts, including threads, professional updates, Reddit submissions, technical articles, and Hacker News posts.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/vanthienha199/openclaw-skills/social-poster
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 vanthienha199/openclaw-skills --skill social-poster
Clone the repo
git clone --depth 1 https://github.com/vanthienha199/openclaw-skills

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 social-poster

README.md
[![agentmods](https://agentmods.dev/badge/skills/vanthienha199/openclaw-skills/social-poster/github.svg)](https://agentmods.dev/skills/vanthienha199/openclaw-skills/social-poster)
Your own site
<a href="https://agentmods.dev/skills/vanthienha199/openclaw-skills/social-poster"><img src="https://agentmods.dev/badge/skills/vanthienha199/openclaw-skills/social-poster/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 social-poster

Your own site · 80×15
<a href="https://agentmods.dev/skills/vanthienha199/openclaw-skills/social-poster"><img src="https://agentmods.dev/badge/skills/vanthienha199/openclaw-skills/social-poster.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 91 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 907 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 $0.00091 $0.00907
Opus 5 $0.00046 $0.00453
Sonnet 5 $0.00018 $0.00181
Haiku 4.5 $0.00009 $0.00091

Measured 11d ago against content hash 8f1e43bba510, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

social-poster 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 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.

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.

social-poster/SKILL.md · 131 lines

How it starts

The opening of the file, as written. The whole thing — 131 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Social Poster

You draft platform-specific social media content. Same message, adapted for each audience.

Core Behavior

When the user has something to share, generate tailored drafts for each platform they want. Respect each platform's culture, length limits, and formatting.

Platform Rules

Twitter / X (280 chars)

  • Hook in first line — stop the scroll
  • Thread for longer content (1/ 2/ 3/ format)
  • Use 2-3 relevant hashtags at the end, not inline
  • Casual, punchy, opinionated tone
  • Numbers and data perform well
  • Ask a question at the end to drive engagement

LinkedIn (3,000 chars)

  • Professional but human tone
  • Start with a bold claim or insight (first 2 lines are critical — they appear before "see more")
  • Use line breaks every 1-2 sentences (LinkedIn rewards readability)
  • End with a question or CTA
  • 3-5 hashtags at the very bottom
  • Never use emoji as bullet points

Reddit

  • Title is everything — clear, specific, no clickbait
  • Match the subreddit's culture (r/SideProject = casual, r/programming = technical, r/MachineLearning = academic)
  • Self-posts perform better than links on most subreddits
  • Share a personal story or insight, not just a link
  • Don't sound promotional — sound like a community member sharing something
  • Engage in comments immediately after posting

Dev.to / Hashnode

  • Article format with headers, code blocks, screenshots
  • "How I Built X" or "I Built X — Here's What I Learned" titles perform best
  • Include repo links with clear CTAs
  • Series format for multi-part content
  • Add a cover image URL if possible
  • 3-5 tags matching the platform's tag system

Hacker News

  • Title: direct, factual, curiosity-driving. NO marketing language
  • Use "Show HN:" prefix for your own projects
  • First comment from submitter should add context
  • Be humble and ready for harsh feedback
  • Never ask for upvotes (instant penalty)
  • Tuesday-Thursday, 8 AM ET posting time

Commands

"Cross-post: [content]"

Generate adapted versions for all platforms:

## Twitter/X
[280 char version]

## LinkedIn
[professional version]

## Reddit r/SideProject
**Title:** [title]
[body]

## Dev.to
**Title:** [title]
[article draft]

## Hacker News
**Title:** [title]
**First comment:** [context]

Read the full file on GitHub · 131 lines

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 · 131 lines · 91 tokens per session scan A 8f1e43bba510

Subscribe to this mod's changes

social-poster is a skill published in the GitHub repository vanthienha199/openclaw-skills (1 stars, last pushed 5mo ago), licensed MIT. It adds 91 tokens to every session and 907 once invoked, about $0.0005 per session on Opus 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.