charlie947/social-media-skills is a collection of markdown instructions that gives AI agents specialized workflows for creating and managing social-media content. It supports a content system spanning LinkedIn, Instagram, Substack, X, and YouTube, with shared voice and context files guiding the individual skills.
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.
npx skills add charlie947/social-media-skills --skill post-writergit clone --depth 1 https://github.com/charlie947/social-media-skillsWrote 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.
[](https://agentmods.dev/skills/charlie947/social-media-skills/post-writer)<a href="https://agentmods.dev/skills/charlie947/social-media-skills/post-writer"><img src="https://agentmods.dev/badge/skills/charlie947/social-media-skills/post-writer/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.
<a href="https://agentmods.dev/skills/charlie947/social-media-skills/post-writer"><img src="https://agentmods.dev/badge/skills/charlie947/social-media-skills/post-writer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector pass
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00110 | $0.01291 |
| Opus 5 | $0.00055 | $0.00646 |
| Sonnet 5 | $0.00022 | $0.00258 |
| Haiku 4.5 | $0.00011 | $0.00129 |
Grade A, and why
post-writer 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 13d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- post-writer — 100% identical, 0 lines differ
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.
Post Writer
CRITICAL: Auto-start on load
The moment this skill triggers, go straight to Step 1. Do not summarise the skill. Do not explain what it does. Do not list the files it references. Jump to input gathering immediately.
Step 1. Gather inputs
Check the project for about-me.md and voice.md. Read both. If either is missing, tell the user to run the Voice Builder skill first ("say build my voice"), then stop.
If both files exist, call AskUserQuestion with this exact JSON:
[
{
"question": "What topic do you want to post about?",
"header": "Topic",
"multiSelect": false,
"options": [
{"label": "Paste a context dump", "description": "I have notes, transcripts, or raw ideas to turn into a post"},
{"label": "I have a topic in mind", "description": "I will type the topic after this"},
{"label": "Suggest topics for me", "description": "Based on my voice system, suggest 5 topics I should post about"}
]
},
{
"question": "Do you have any reference posts you want me to use as structural inspiration?",
"header": "References",
"multiSelect": false,
"options": [
{"label": "No references", "description": "Write from scratch using my voice files only"},
{"label": "I will paste examples", "description": "I have posts from other creators I want you to study first"},
{"label": "Use my training posts", "description": "Reference the posts I used in the Voice Builder"}
]
}
]
Based on the answers:
- "Paste a context dump": wait for the user to paste, extract the core idea, then proceed to Step 2
- "I have a topic in mind": wait for the user to type it, then proceed to Step 2
- "Suggest topics for me": read about-me.md topic pillars and voice.md, suggest 5 specific topics with a one-line angle for each, then use AskUserQuestion to let them pick one
- "I will paste examples": wait for reference posts, note the structural patterns, then proceed
- "Use my training posts": reference whatever posts are already in the project
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.
- 13d ago First seen · 131 lines · 110 tokens per session scan A a0c91645648d
post-writer is a skill published in the GitHub repository charlie947/social-media-skills (3,385 stars, last pushed 13d ago), licensed MIT. It adds 110 tokens to every session and 1,291 once invoked, about $0.0006 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 2026-08-30.
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