reddit-subreddit-finder — rank subreddits for a topic

Given a GTM object (a product/topic in one line), return a ranked table of candidate subreddits with fit, self-promo safety, and a rules summary. On-demand and live: no central index — fit is computed from what rdt returns now, not from corpus overlap.

Shared contracts: rdt-readonly · guardrails.

When to trigger

Manual only. Run when the user asks where to post, or to find communities/audience for a topic.

Flow

1. Find candidates

Derive query terms from the GTM object. reach fetch-reddit search "<terms>" -s relevance -t year — relevance, not top (top biases to mega-subs and off-topic viral posts). Keep only on-topic posts, and collect the subreddits they recur in as candidates.

2. Profile each candidate

reach fetch-reddit sub-info <sub> for subscribers, restrict_posting, submission_type, public_description. For a rough removal signal, sample reach fetch-reddit sub <sub> -s new and read each post's removed / removed_by_category field (per-post, not a single grep count).