Free · open source (MIT) · version 0.2.6

ThreadFox Lite: your AI reads the rules before it writes the post.

Five free, read-only Reddit tools for Claude Desktop, Claude Code, Codex and any MCP client, plus the reddit-rules-first skill. It never posts, votes or changes anything.

• subreddit_rules: a community's rules, size and description, with the self-promotion rules flagged. Call it before writing a post.
• find_communities: subreddits about a topic, each with its self-promotion rules flagged and whether it mentions a promo thread.
• account_check: an account's age, karma and standing, and whether its recent posts are removed or hidden from search.
• post_status: whether a post is still live, removed by moderators or deleted. Check at 1, 6 and 24 hours.
• threadfox_full_kit: what the full kit adds, if you want to post and reply from your AI too.

Every read runs in your own Chrome, signed in as you, through Microsoft's Playwright Extension (Reddit now sends signed-out requests to a login page). That extension is the only setup: Node.js is fetched for you if it's missing, checked against nodejs.org's published checksum, and nothing is installed system-wide.

Install

Claude Desktop

Download threadfox-lite-0.2.6.mcpb

Open the file; if Windows asks which app should open it, choose Claude. Claude Desktop sets up Python for it by itself. SHA-256 5714d4a8c26500fff9a6518030879df1597c65974f7dd147d09901e6fca192b3.

Claude Code

claude mcp add threadfox-lite -- uvx threadfox-lite

Codex

Add to ~/.codex/config.toml:

[mcp_servers.threadfox-lite]
command = "uvx"
args = ["threadfox-lite"]

Any other MCP client

uvx threadfox-lite

The package is on PyPI. uvx comes with uv.

The skill

reddit-rules-first (SKILL.md) works on its own in any agent that reads skills: rules first, one post per community, say it's yours, check what stayed up. Put it in a reddit-rules-first folder in your agent's skills directory.

The source repository and the Claude Code plugin marketplace are temporarily unavailable on GitHub. Everything above works without them.