SignalStac
Find high-intent conversations worth replying to
SignalStac launched on June 28, 2026 with 5 votes, #2,466 of 22,647 launches that month and more than 75% of that year's launches.
What it does
SignalStac is an AI agent that watches Reddit, Hacker News, and forums for conversations where your product is already relevant. It ranks the best threads, explains why they matter, and gives you the context to respond without manually scanning feeds all day. Built for founders doing early distribution, customer discovery, and founder-led sales.
signalstac is an AI agent that browses the developer communities where your customers post, scores what’s worth your time, and drafts the reply — in your voice.
Find the threads that matter. Score them. Draft the reply in your voice. We built signalstac for this — it watches Reddit, HN, and GitHub, scores each thread by intent, and drafts a reply in your voice. Happy to share how we keep it from reading like a bot. An agent opens Reddit, HN, GitHub, Lobsters every 30 minutes and reads the same context a human would see. Every thread is ranked on relevance and buying signal — a firehose becomes a short list worth your time. Full thread context. Direct, technical replies — you review and send. Looking for something that watches communities and drafts replies in my voice — not another keyword firehose. We built signalstac for this — it watches the…from signalstac.xyz
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