What is reddit-audience-finder?

A quarterly research workflow for deciding which Reddit communities are worth engaging with. It checks audience size, rules, recent activity, and suitability for the intended developer audience.

Evaluating subreddits, recording their rules and activity, scoring their suitability, and maintaining a tiered community list.

It replaces guesswork with a repeatable comparison of candidate communities before outreach begins.

reddit-audience-finder — Skill for Claude Code by systempromptio

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.

Any agent

npx skills add systempromptio/systemprompt-marketplace --skill reddit-audience-finder

Clone the repo

git clone --depth 1 https://github.com/systempromptio/systemprompt-marketplace

Made for: Claude Code.

Or install social-media, the plugin that ships this one along with the rest of its 10 skills.

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/systempromptio/systemprompt-marketplace/reddit-audience-finder/github.svg)](https://agentmods.dev/skills/systempromptio/systemprompt-marketplace/reddit-audience-finder)

Your own site

<a href="https://agentmods.dev/skills/systempromptio/systemprompt-marketplace/reddit-audience-finder"><img src="https://agentmods.dev/badge/skills/systempromptio/systemprompt-marketplace/reddit-audience-finder/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/systempromptio/systemprompt-marketplace/reddit-audience-finder"><img src="https://agentmods.dev/badge/skills/systempromptio/systemprompt-marketplace/reddit-audience-finder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,552 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.

Origin unknown 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	$0.00084	$0.02552
Opus 5.5	$0.00034	$0.01021
Sonnet 5.5	$0.00017	$0.00510
Haiku 4.5	$0.00008	$0.00255

Measured 2mo ago against content hash c2505217d8a3, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

reddit-audience-finder scanned grade A with 1 finding 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 2mo 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

Reddit's public JSON works from `curl` with a browser User-Agent. `WebFetch` may be blocked; use `bash` with `curl`.

plugins/social-media/skills/reddit-audience-finder/SKILL.md · 262 lines

The source is not reproduced here

No licence file

Read it on GitHub

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.

2mo ago First seen · 262 lines · 84 tokens per session scan A c2505217d8a3

Subscribe to this mod's changes

reddit-audience-finder is a skill published in the GitHub repository systempromptio/systemprompt-marketplace (2 stars, last pushed 1mo ago), with no licence file. It adds 84 tokens to every session and 2,552 once invoked, about $0.0003 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

Claude Code Marketing and SEO Research agents ai-development marketplace mcp plugins

reddit-audience-finder next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
reddit-audience-findersystempromptio/systemprompt-marketplace	Skill	2	1mo ago	none	A	84	Claude Code
morning-briefmelodic-software/claude-code-plugins	Skill	30	today	MIT	A	152	Claude Code
extract-ssotmelodic-software/claude-code-plugins	Skill	30	today	MIT	A	99	Claude Code
audit-progressive-disclosuremelodic-software/claude-code-plugins	Skill	30	today	MIT	A	113	Claude Code
firecrawlmelodic-software/claude-code-plugins	Skill	30	today	MIT	A	166	Claude Code
write-for-agentsmelodic-software/claude-code-plugins	Skill	30	today	MIT	A	155	Claude Code
eli5melodic-software/claude-code-plugins	Skill	30	today	MIT	A	155	Claude Code

reddit-audience-finder

Getting it into your agent

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Makes network callslowCapability

The source is not reproduced here

No licence file

What this file has done since we first saw it

reddit-audience-finder compared with skills from other repositories