A 7-person agency built an AI-assisted Reddit ops room that replaced 40% of cold outbound
Northwind Growth: 7-person B2B demand-gen agency
Northwind runs demand-gen for Series A-B B2B SaaS companies. Their cold email reply rates had fallen from 4.1% to 0.7% over 18 months. Rebuilding around Linkeddit + Claude MCP + HubSpot turned Reddit into their single largest net-new channel inside one quarter.
Background
Northwind's thesis is that B2B founders trust other founders over cold email. Reddit is where those conversations happen, but the operational problem was always the same: by the time a strategist saw a promising thread, it had 400 comments and the moment was gone. The team needed a system that surfaced threads in under an hour and gave them a ready-to-edit first draft.
The problem
Three structural problems with cold email had compounded: (1) deliverability collapsed after the Google/Yahoo sender changes; (2) the ICPs they were chasing were on 3+ cold email sequences a week; (3) every agency on LinkedIn was running the same plays. They needed a channel that was still asymmetric, where the right founder answering the right question couldn't be faked.
Pipeline configuration
Northwind Growth runs 2 Linkeddit pipelines. Each one is scoped to a narrow set of subreddits and keyword patterns so the lead queue never turns into noise.
Agency-looking founders
looking for marketing agencyfired my marketing agencycan't find a good agencyB2B agency recommendationfractional CMO- •Contactability score ≥ 65
- •OP account age ≥ 90 days
- •Thread must be a self-post, not a link
- •Exclude threads locked by moderators
Cold email failures (product fit)
cold email not workinglow reply ratesinstantly not deliveringapollo reply ratesoutbound dying- •Contactability score ≥ 70
- •Minimum 5 comments on thread
- •OP must have commented back at least once
AI Content Writer workflow
- 1.The Content Writer runs in 'agency-empathy' mode, a custom persona the team configured to match their senior strategist's voice.
- 2.Each draft includes 3 required structural elements: (a) acknowledge the OP's actual problem, (b) offer one specific tactical suggestion without a pitch, (c) leave the door open for a DM only if the OP asks.
- 3.Strategist reviews in an internal dashboard that diffs the AI draft against the final reply, the deltas feed back into the prompt for the next session.
- 4.Rejected drafts get tagged with a reason code (tone, inaccuracy, off-brand) so Priya can audit prompt quality weekly.
Linkeddit MCP + AI integration
Northwind's Slack workspace has a Claude-backed bot named 'Pipe' that runs the Linkeddit MCP and writes to HubSpot. Strategists never leave Slack.
search_leads: used by Pipe every 30 minutesget_lead_insights: on-demand for any lead a strategist flagsget_user_posts + get_user_comments: to assess whether the OP is a real founder or a lurkerfetch_post_comments: reads the full thread so the reply doesn't repeat existing suggestions
- •HubSpot MCP: creates a deal + contact + source thread URL + auto-assigns to the right strategist
- •Slack MCP: posts the lead in a dedicated channel with an 'Accept / Pass' button
- •Notion MCP: drops the thread + draft reply into the client's weekly insights doc
- •Gmail MCP, if the OP publishes their email on Reddit, drafts a warm follow-up (never auto-sends)
You're Pipe. Pull today's leads from the 'agency-looking' pipeline with score ≥ 75. For each: (1) check if the OP's last 20 Reddit comments show they run a company ≥ 10 people, (2) draft a reply in Priya's voice that opens with a specific tactical suggestion, (3) create a HubSpot deal at 'Reddit Inbound' stage with the thread URL, and (4) post in #reddit-leads with an Accept button.
Want to run this workflow yourself? Set up the Linkeddit MCP server or connect via the Claude connector.
Daily rhythm
- 8:30am, Pipe drops 6-10 overnight leads in #reddit-leads with draft replies.
- 9:00-9:45am, Strategist shift: review, edit, post replies from personal Reddit accounts.
- 12:00pm, Pipe's midday sweep, usually 3-5 fresh threads.
- 4:30pm, Priya runs a Claude prompt to audit the day's replies: reply rate, upvote median, any leads gone cold.
Thread breakdown
Subreddits monitored
Results
- •47 inbound discovery calls per month from Reddit alone, up from 0 three months prior.
- •$38k in new MRR signed in quarter one of the Reddit channel.
- •Cold outbound volume reduced 40% with zero pipeline drop.
- •Strategist time-per-reply dropped from 38 minutes (pre-Content-Writer) to 22 minutes average.
Lessons
- 1.Persona calibration is a multi-week investment. The first month's AI drafts were 'too helpful', not punchy enough. Weekly delta audits fixed it.
- 2.Agency replies from the brand account tanked. Replying from individual strategists' accounts 3.7x'd response rate.
- 3.The Slack-button handoff matters more than it sounds. Review latency dropped from 4 hours to under 30 minutes once the accept flow was one click.
“Our cold email ops room runs 4 SDRs and still loses money. Our Reddit ops room is Pipe plus two part-time strategists and drives more pipeline. The difference is Linkeddit's MCP: Pipe doesn't just find leads, it stages them in HubSpot, drafts the reply, and tells us who to route them to.”
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