Series A to B2B SaaS, 5 to 25 person team

AI native outbound stack

Crustdata for sourcing, FullEnrich for waterfalls, Instantly for cold email, Unipile for LinkedIn, Notion as the CRM. One Yalc prompt orchestrates the whole pipeline.

Crustdata
Source ICP accounts and people
FullEnrich
Waterfall enrich missing emails and phones
Instantly
Cold email send and warmup
Unipile
LinkedIn invites and DMs
Notion
CRM, campaign state, reply log
Stack composition

Tools in this stack

Total monthly cost

~$200/mo plus Crustdata

Build time

2 to 4 hours

The runnable workflow

How Yalc orchestrates this stack

This stack runs cold outbound end to end from a single Yalc prompt. Crustdata sources accounts and people. FullEnrich enriches missing emails. Instantly sends the email sequence. Unipile fires LinkedIn invites in parallel for the highest fit subset. Notion holds campaign state and reply logs.

The prompt below clones into Claude Code, configures the workflow against your own credentials, and runs end to end. You stay in the loop on send approval (no auto fire) but everything else is orchestrated.

# Clone the Yalc skill set gh repo clone Othmane-Khadri/YALC-the-GTM-operating-system && cd YALC-the-GTM-operating-system # Configure your env (Crustdata key, FullEnrich key, Instantly key, Unipile DSN, Notion key) cp .env.example .env && $EDITOR .env # Run the campaign workflow claude > Yalc, build a Q3 outbound campaign for Series A B2B SaaS founders in DACH. > Source 200 leads via Crustdata. Enrich missing emails via FullEnrich. > Draft a 3 step email sequence in [client voice]. Push to Instantly (paused). > In parallel, queue LinkedIn invites via Unipile for the top 50 fit scores. > Log every action and reply to the "Q3 outbound" Notion campaign.
Variations

Swap one tool for another when…

Swap Instantly for Smartlead when you need fine grained send rule control or unlimited inboxes per seat.
Swap Unipile for HeyReach when the LinkedIn sender count is above 5 and the agency economics make sense.
Add Predictleads on top to trigger sequences on hiring signals or financing events instead of static ICP filters.
Swap Notion for HubSpot when the team needs deal pipeline UX and sales suite features.

Clone this stack into Claude Code

Open source skills. Your data on your machine.