Browse the agents.
Every agent on this page is a play that Mark Colgan actually runs, packaged so your team can run it too.
250+ B2B Sales engagements. Hundreds of millions in pipeline.
Founder of Yellow O. I help B2B SaaS teams fix their outbound through diagnostics, playbooks, training, and advisory. $300K pipeline in 2 weeks. 295% increase in net new MRR. 92% reduction in speed-to-lead. Every skill here is built from real client work, not theory.
Watch the agent do the work, start to finish.
Not a playbook to read. A standard that runs.
Cold Email Grader
Playing a recorded demo of Cold Email Grader, 6 steps.
One install. It runs on your stack.
Everything below, packaged into one thing you install.
Write Emails That Get Replies
The frameworks behind hundreds of millions in B2B pipeline, turned into skills your reps can run today. Grade existing emails, write signal-led outreach, build full sequences, and generate pain-led messages.
Sign in at checkout to access your workspace.
You approve every action before it sends.
No credit card required to start.
$49/mo
Try one agent free5 agents included
Cold Email Grader
Signal-to-Outreach Email
Pain-Led Email Writer
3-Email Cold Sequence Builder
Follow-Up Angle Changer
How it works
Demo it free
You can try any agent on your own business before paying for anything. There's no sales call to sit through.
Install the agent
Free agents install right away and paid ones take a quick checkout first. Either way it's yours to run immediately.
It runs on your stack
Connect your tools once, and the agents will adapt to your company and ICP. Whenever it is enhanced, you get the update.