Plumber
Before tech, I was a plumber. Not a metaphor — actual plumbing.
Every system has a logic. Follow the flow.
Building in public
Shawn Tenam
Go-to-market engineer, now founder. Plumber for 10 years before that.
I build my GTM engine in public. Campaigns, content, and the agents that run them live in one codebase you can read. Take what works.
Steal my files
the vault
23 real files from my GTM agent stack. Voice DNA, anti-slop, the Reddit system. Browse them, download them, use them.
The path
Read the full arc →SDR
SDR years. Manual buying committees, primary-domain sends, the grind that taught me what to automate.
Volume is a teacher. Rejection is data.
GTM Engineer
I stopped working inside the systems and started building them.
You can’t engineer what you don’t understand.
Founder
Now I’m building Clearbox. The system became the product.
Build the tool you wish existed.
Start here
Now live
Clearbox
See your market. Move first.
Reddit growth playbook
Zero to a community in 30 days
2
,1
8
1
200+ entries
Knowledge
Wikis, how-tos, context engineering, GEO, guides — everything in one place.
open source · the git log
Built in public
The stars, the commit trail, and the one thing I won't claim.
Writing
Read the blog →gtm engineering · Jul 6, 2026
the GTM coding agent hit 100 stars: I ran its Quick Start live in Claude Code
Episode 2 of Founder's Journey is live. The GTM coding agent repo crossed 100 GitHub stars, so I open it up, define go-to-market engineering, and run the repo's own Quick Start — `help me set up` — until Claude scaffolds a whole GTM knowledge base: a CLAUDE.md under 200 lines, a README, and a clean folder tree.
Read →ships · Jun 26, 2026
I Rebuilt My Open-Source Website Playbook Three Months Later
website-with-soul shipped in March. Then I spent three months building a product, and it changed what the website is for. The core thesis is unchanged; the proof behind it is new. The 2026 refresh: Next 16, controlled content cohorts, organic engagement over backlinks, and a local repo plus database as the context engine.
Read →plays · May 21, 2026
A HubSpot CMS Engine I Pulled Out of the Archive
Six to ten minutes for fifty personalized DRAFT landing pages in your HubSpot portal. Built originally inside a HubSpot agency. Rebuilt this week as an open-source starter on Claude Code Opus 4.7. Brief, subagent columns, Pages API. Everything in git.
Read →What Clearbox is
Open the full Clearbox ↗Signal-based market intelligence. Pick a mode — lead, competitor, or engager — and Clearbox scores the conversations worth showing up in. See it live ↗
// pick a mode
Aura
8
9
Buyers signaling intent to solve a problem in your category.
// how lead mode runs
- 01 · signal detecteda buyer describes the exact problem you solve
- 02 · thread scoredAura ranks it against everything else live right now
- 03 · move firstyou show up in the conversation before anyone else does
Currently learning
See the craft log →Building in public · blog · substack · reddit
See all →- blog · gtm-engineering2w agothe GTM coding agent hit 100 stars: I ran its Quick Start live in Claude Code
- blog · ships3w agoI Rebuilt My Open-Source Website Playbook Three Months Later
- blog · ships3w agoI Rebuilt a $70K Market-Scoring Tool with Claude Code in an Afternoon
- blog · gtm-engineering4w ago10 Python Scripts I Run for GTM, and the Exact Prompt to Build Each One
- blog · gtm-engineering1mo ago10 More Repos I Use in My Actual GTM Stack
- blog · methodology1mo ago70 GitHub Stars, 17 Chapters, and the Operating System Behind My GTM Work
- blog · gtm-engineering1mo ago10 Repos You Can Copy, Fork, and Adapt Right Now
- blog · plays2mo agoA HubSpot CMS Engine I Pulled Out of the Archive
- blog · gtm-engineering2mo agoApollo Is the Source of Truth: Filling the Gaps in Per-Scrape VC Portfolio Databases
- blog · ships2mo agoTwo Months on Reddit, One Thing to Build
- blog · gtm-engineering2mo agoAds Are the Bet a Company Will Make in Public
- blog · ships2mo agoYour "Signals" Are Just Qualification Data