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 rajpootathar/megahorn --skill social-postgit clone --depth 1 https://github.com/rajpootathar/megahornWrote 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/rajpootathar/megahorn/social-post)<a href="https://agentmods.dev/skills/rajpootathar/megahorn/social-post"><img src="https://agentmods.dev/badge/skills/rajpootathar/megahorn/social-post/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/rajpootathar/megahorn/social-post"><img src="https://agentmods.dev/badge/skills/rajpootathar/megahorn/social-post.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00032 | $0.00803 |
| Opus 5 | $0.00016 | $0.00402 |
| Sonnet 5 | $0.00006 | $0.00161 |
| Haiku 4.5 | $0.00003 | $0.00080 |
Grade A, and why
social-post 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.
How it starts
The opening of the file, as written. The whole thing — 90 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Social Post — Megahorn Skill
You have access to Megahorn MCP tools for posting to social media. This skill teaches you how to write great posts and publish them.
Prerequisites
Check that Megahorn is available:
- Call
megahorn_auth_statusto verify which platforms are connected - If no platforms are authenticated, tell the user to run
megahorn auth <platform> - If
megahorn_auth_statustool is not available, tell the user to install Megahorn:go install github.com/rajpootathar/megahorn@latest && megahorn install
Workflow
When asked to promote, announce, or post about something:
1. Understand the Context
- Read the project's CLAUDE.md for product overview, voice, and audience
- Check recent git commits or changelogs for what was shipped
- If a specific feature/blog/update was mentioned, understand it thoroughly
- Look at docs/, README, or any marketing copy for tone reference
2. Write Platform-Specific Content
Twitter (280 chars max):
- Lead with a hook: surprising stat, bold claim, or relatable problem
- Use short, punchy sentences
- Include a link if relevant
- No hashtag spam (1-2 max, only if natural)
- No corporate speak — write like a builder shipping something cool
LinkedIn (up to 3000 chars):
- Thought-leadership tone, first-person
- Open with a hook paragraph that makes people stop scrolling
- Share insight, lesson learned, or behind-the-scenes
- Professional but not boring — no "I'm thrilled to announce"
- Can include bullet points for readability
- End with a soft CTA or question to drive engagement
Reddit:
- Anti-promotional tone — this MUST read as genuine discussion
- Frame as sharing learnings, asking questions, or contributing value
- NEVER use marketing language ("excited to announce", "game-changing")
- Title should be specific and useful, not clickbaity
- Always ask user to confirm the subreddit before posting
- Warn about subreddit rules if you know them (karma requirements, flair, self-promo rules)
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.
- 11d ago First seen · 90 lines · 32 tokens per session scan A 6bcc89dcadbe
social-post is a skill published in the GitHub repository rajpootathar/megahorn (0 stars, last pushed 5mo ago), licensed MIT. It adds 32 tokens to every session and 803 once invoked, about $0.0002 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.
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