gtm-engineering

A curated list of awesome marketing tools and resources

A curated list of tools, libraries, frameworks, and resources for Go-To-Market (GTM) Engineering — the intersection of engineering and marketing, focused on growth, automation, attribution, analytics, and experimentation.

Open-source, self-hosted alternative to Clay.com for lead sourcing, enrichment waterfalls, AI research, buying signals, and outbound automation.

B2B Sales Claude Skills

10 installable Claude Code skills that turn your terminal into a GTM command center. ICP building, signal scanning, lead scoring, outreach sequences, battlecards. Built by Earleads.

Ozigi is a go-to-market engine for founders, DevRel teams, and small technical teams. It handles the four jobs that fill pipeline: finding the right people, qualifying them against your ICP, reaching them with outreach that sounds human, and publishing the content that warms the market.

Headless GTM: the full outbound chain as Claude Code and Codex skills on raw vendor APIs.

Every GTM engineering project worth building — built live, in public, with Claude Code. Companion repo to The New GTM Engineer.

Reference implementation of a list-building path for GTM engineers: a plain-English campaign brief becomes a deduped, qualified, enriched, sequencer-ready contact list in seven stages, with swappable data providers.

Playcall is the open-source alternative to Gong, built for AI-native GTM teams. Score every call against your playbook and the buyer context your rep was talking to. No vendor lock-in, $30K/year contracts, or 10+ baked-in features your team never touches.

The software factory for go-to-market. An open-source monorepo holding your company context (ICP, personas, plays, proof, cadence) so AI agents can build and run a self-driving GTM engine.

Web research agent. Send a prompt + JSON Schema, get structured data back. Open-source Claygent alternative.

An AI agent that automates GTM work

AI reply bot for cold-email agencies on EmailBison: drafts replies with an LLM, a human approves in Slack (Send / Edit / Skip). Per-client instances, one Slack app, guided setup by Claude Code.

Source-verified web research for GTM enrichment: every fact carries the URL that proves it, results are cached across runs, and paid providers run only when free ones fail.

Paste a YouTube link, get a vault-ready research digest in 90 seconds: TL;DR, timestamped takeaways, slide screenshots, transcript. A Claude Code skill.

Recipient-side control for cold email: classify the mail gateway behind each recipient, isolate gateway cohorts, and throttle per-account exposure before launch. Exports a rollout plan; never sends.

GTM engineering framework for B2B SaaS - folder architecture, governance, and AI agent system for go-to-market operations with Claude Code

Reference architecture of an internal GTM platform: the platform one person runs for a team of GTM engineers delivering to 34 clients. Ten capability layers, the invariant each enforces, what it measured, and its known gaps.

A twelve-chapter field manual for AI-assisted go-to-market engineering.