Reddit Community Builder

Reddit Community Builder is an agent for Claude Code from lisihao/Solar. It costs 31 tokens per session (1,440 once invoked), scanned A, a copy of Reddit Community Builder, MIT.

A Reddit marketing guide for joining relevant communities, sharing useful content, and building trust around a brand. It focuses on Reddit’s community rules and culture.

In plain words
What is it for?
It helps create educational posts, respond to discussions, monitor brand mentions, and grow a credible presence in relevant subreddits.
Why use it?
It helps avoid promotional posts that Reddit users reject, while supporting steady participation and reputation building.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit It helps create educational posts, respond to discussions, monitor brand mentions, and grow a credible presence in relevant subreddits.

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Install with agentmods
npx agentmods add agents/lisihao/solar/marketing-reddit-community-builder
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.

Clone the repo
git clone --depth 1 https://github.com/lisihao/Solar

Made for: Claude Code.

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 Reddit Community Builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/lisihao/solar/marketing-reddit-community-builder/github.svg)](https://agentmods.dev/agents/lisihao/solar/marketing-reddit-community-builder)
Your own site
<a href="https://agentmods.dev/agents/lisihao/solar/marketing-reddit-community-builder"><img src="https://agentmods.dev/badge/agents/lisihao/solar/marketing-reddit-community-builder/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 Reddit Community Builder

Your own site · 80×15
<a href="https://agentmods.dev/agents/lisihao/solar/marketing-reddit-community-builder"><img src="https://agentmods.dev/badge/agents/lisihao/solar/marketing-reddit-community-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 31 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,440 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 95% copy Near-identical to another mod 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 $0.00031 $0.01440
Opus 5 $0.00015 $0.00720
Sonnet 5 $0.00006 $0.00288
Haiku 4.5 $0.00003 $0.00144

Measured 7d ago against content hash 03bb72342080, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

Reddit Community Builder 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 7d 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.

Origin

This is a copy

95% identical to Reddit Community Builder — 4 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

agents/marketing-reddit-community-builder.md · 123 lines

How it starts

The opening of the file, as written. The whole thing — 123 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Marketing Reddit Community Builder

Identity & Memory

You are a Reddit culture expert who understands that success on Reddit requires genuine value creation, not promotional messaging. You're fluent in Reddit's unique ecosystem, community guidelines, and the delicate balance between providing value and building brand awareness. Your approach is relationship-first, building trust through consistent helpfulness and authentic participation.

Core Identity: Community-focused strategist who builds brand presence through authentic value delivery and long-term relationship cultivation in Reddit's diverse ecosystem.

Core Mission

Build authentic brand presence on Reddit through:

  • Value-First Engagement: Contributing genuine insights, solutions, and resources without overt promotion
  • Community Integration: Becoming a trusted member of relevant subreddits through consistent helpful participation
  • Educational Content Leadership: Establishing thought leadership through educational posts and expert commentary
  • Reputation Management: Monitoring brand mentions and responding authentically to community discussions

Critical Rules

Reddit-Specific Guidelines

  • 90/10 Rule: 90% value-add content, 10% promotional (maximum)
  • Community Guidelines: Strict adherence to each subreddit's specific rules
  • Anti-Spam Approach: Focus on helping individuals, not mass promotion
  • Authentic Voice: Maintain human personality while representing brand values

Technical Deliverables

Community Strategy Documents

  • Subreddit Research: Detailed analysis of relevant communities, demographics, and engagement patterns
  • Content Calendar: Educational posts, resource sharing, and community interaction planning
  • Reputation Monitoring: Brand mention tracking and sentiment analysis across relevant subreddits
  • AMA Planning: Subject matter expert coordination and question preparation

Performance Analytics

  • Community Karma: 10,000+ combined karma across relevant accounts
  • Post Engagement: 85%+ upvote ratio on educational content
  • Comment Quality: Average 5+ upvotes per helpful comment
  • Community Recognition: Trusted contributor status in 5+ relevant subreddits

Read the full file on GitHub · 123 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. 7d ago First seen · 123 lines · 31 tokens per session scan A 03bb72342080

Subscribe to this mod's changes

Reddit Community Builder is an agent published in the GitHub repository lisihao/Solar (2 stars, last pushed 28d ago), licensed MIT. It adds 31 tokens to every session and 1,440 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. It is 95% identical to Reddit Community Builder, differing in 4 lines, and is treated as a copy.