A plugin for publishing posts to Twitter/X, Reddit, Facebook, and Instagram. It uses each platform's credentials and supports platform-specific posting commands.

Use it to publish tweets, replies, Reddit text or link posts, and posts on Facebook or Instagram.

It removes the need to switch between social-media websites for supported publishing tasks. Setup still requires installing dependencies and providing the required credentials.

social-post — Skill for Claude Code by isaacrowntree

Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code

/plugin marketplace add isaacrowntree/claude-social-skills

Claude Code

/plugin install social-post

Made for: Claude Code.

Or install social-post, the plugin that ships this one along with the rest of its 1 skill.

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/isaacrowntree/claude-social-skills/social-post/github.svg)](https://agentmods.dev/skills/isaacrowntree/claude-social-skills/social-post)

Your own site

<a href="https://agentmods.dev/skills/isaacrowntree/claude-social-skills/social-post"><img src="https://agentmods.dev/badge/skills/isaacrowntree/claude-social-skills/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/isaacrowntree/claude-social-skills/social-post"><img src="https://agentmods.dev/badge/skills/isaacrowntree/claude-social-skills/social-post.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 40 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 890 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.

Model	Per session	Once invoked
Fable 5.1	$0.00040	$0.00890
Opus 5	$0.00020	$0.00445
Sonnet 5	$0.00008	$0.00178
Haiku 4.5	$0.00004	$0.00089

Measured 12d ago against content hash 606a1163b6b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

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 12d 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.

plugins/social-post/skills/social-post/SKILL.md · 96 lines

How it starts

The opening of the file, as written. The whole thing — 96 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Post to Twitter/X, Reddit, Instagram, or Facebook from Claude Code.

First-time setup

Before first use, install the Python dependencies:

pip install -r "${CLAUDE_PLUGIN_ROOT}/requirements.txt"

Credentials must be set as environment variables. The user needs to create a .env file or export them in their shell. Show them which vars are needed for their target platform (see sections below).

Twitter/X

Script: ${CLAUDE_PLUGIN_ROOT}/scripts/tweet.py

python3 "${CLAUDE_PLUGIN_ROOT}/scripts/tweet.py" "Your tweet text here"
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/tweet.py" "Reply text" --reply-to 1234567890

Max 280 characters
Requires: TWITTER_API_KEY, TWITTER_API_SECRET, TWITTER_ACCESS_TOKEN, TWITTER_ACCESS_TOKEN_SECRET
Get credentials at https://developer.x.com/en/portal/dashboard
Free tier: ~50 posts/month

Script: ${CLAUDE_PLUGIN_ROOT}/scripts/reddit_post.py

# Self post
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/reddit_post.py" post <subreddit> "Post title" --text "Post body"

# Link post
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/reddit_post.py" post <subreddit> "Post title" --url "https://example.com"

# Comment on a post (thing_id = t3_xxxxx for posts, t1_xxxxx for comments)
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/reddit_post.py" comment <thing_id> "Comment text"

Requires: REDDIT_CLIENT_ID, REDDIT_CLIENT_SECRET, REDDIT_USERNAME, REDDIT_PASSWORD
Create a "script" type app at https://www.reddit.com/prefs/apps
2FA must be disabled on the Reddit account — password grant does not support 2FA
Note: Reddit restricted new API key creation in Nov 2025. Existing keys still work.

Facebook

Script: ${CLAUDE_PLUGIN_ROOT}/scripts/fb_post.py

python3 "${CLAUDE_PLUGIN_ROOT}/scripts/fb_post.py" "Your post message"
python3 "${CLAUDE_PLUGIN_ROOT}/scripts/fb_post.py" "Check this out" --link "https://example.com"

Posts to a Facebook Page (personal profile posting not supported by the API)
Requires: FB_PAGE_ID, FB_ACCESS_TOKEN
Get a Page Access Token at https://developers.facebook.com/tools/explorer/
Rate limit: 200 calls/hour

Read the full file on GitHub · 96 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.

12d ago First seen · 96 lines · 40 tokens per session scan A 606a1163b6b9

Subscribe to this mod's changes

social-post is a skill published in the GitHub repository isaacrowntree/claude-social-skills (4 stars, last pushed 12d ago), licensed MIT. It adds 40 tokens to every session and 890 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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