5050-gtm

A growing collection of GTM skills for Claude Code, built by 5050Growth.

Skills you can drop into Claude Code (or run as plain Python) to handle the GTM work that doesn't justify a SaaS subscription. CRM-aware, CSV-friendly, no dashboards, no cron jobs, MIT-licensed.

Built for founders, RevOps folks, and Attio consultants who'd rather run a script than buy another tool.

What are Skills?

Claude Code Skills are markdown files that give Claude (or Codex, Cursor, Gemini CLI) specialized knowledge for a specific task. Each skill knows what to ask, where to pull data from, and what to spit out. You invoke them with /skill-name.

The skills here are productized versions of work we do at 5050Growth on real client engagements. We open-source them so the next person doesn't have to rebuild the wheel.

Available Skills

Revenue Analytics

What you get from /cohort-analysis: every metric a B2B-SaaS investor or founder asks for, in one workbook:

CAC payback is opt-in (provide a cohort,cac_amount CSV). Gross margin defaults to 80%, configurable. Everything else falls out of customers + revenue alone.

What you get from /ltv-cac: forward-looking unit economics from a handful of inputs:

Sources cited inline: Skok (Matrix), a16z, Sequoia, Tunguz.

Sales Ops

Data / Enrichment

Social / Content

SEO / Demand

Finance / CFO

Two modes, same output:

# Mode 1: CSV templates (any stack, zero auth)
python skills/cfo-skill/run.py --source csv --csv-dir ./my-data

# Mode 2: live pull from Stripe + Attio + Qonto + Moss
python skills/cfo-skill/run.py --source api --providers stripe,qonto,moss

What /cfo-skill answers, pulled from the right system:

Excel output: 8 sheets: Summary (with heuristic flags), Cash Flow, Customers, Concentration, AR Aging, Spend Breakdown, Recurring Vendors, Disclaimer.

Frameworks (LTV:CAC, runway, burn multiple, Rule of 40) and bootstrapped case studies (Mailchimp, Zapier, Basecamp, ConvertKit, Zoho) bundled as references, adapted from EveryInc/charlie-cfo-skill (MIT). Read-only by design, never requests write scopes.

Coming soon

We're adding skills as we productize internal work. Star the repo to follow along:

• Sales Ops: proposal generation from call transcripts, lead scoring rules, follow-up sequencing
• Lifecycle / RevOps: Attio lifecycle audit, ownership rules, list hygiene
• SEO / Demand: programmatic page generators, schema markup audits
• Reporting: Evidence/DuckDB scaffolds for any CRM source

If there's something specific you'd want, open an issue.

Install

Option 1: Project-level skill (recommended)

Copy a skill into your project's .claude/skills/ folder:

git clone https://github.com/NachoLafuente/5050-gtm.git
cp -r 5050-gtm/skills/<skill-name> /path/to/your-project/.claude/skills/

The skill becomes available as /<skill-name> in Claude Code from that project.

Option 2: User-level skill (available everywhere)

git clone https://github.com/NachoLafuente/5050-gtm.git
cp -r 5050-gtm/skills/<skill-name> ~/.claude/skills/

Option 3: Standalone Python CLI

You don't need Claude Code. Each skill is also runnable as a plain Python script:

git clone https://github.com/NachoLafuente/5050-gtm.git
cd 5050-gtm
python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt
python skills/<skill-name>/run.py --help

Most skills ship with an examples/ fixture so you can try the pipeline before plugging in real credentials.

Option 4: Fork it

The point of MIT-licensing this is that your stack is yours. If you're on HubSpot + Chargebee instead of Attio + Stripe, fork and add a puller. Most skills are <300 lines of Python, easy to extend.

Philosophy

A few rules we follow when building these:

• CSV is the default. Excel is the most popular GTM tool on earth. Don't fight it.
• No cron, no warehouse. One-shot scripts. If you need a refreshing dashboard, buy ChartMogul.
• No SaaS. Your data stays on your laptop. We never POST anywhere.
• Sources are pluggable. Skills that pull data have a pullers/ folder. Add one for your CRM in ~30 lines.
• Honest about limits. When a source can't do something (e.g. Attio has no native revenue history), the skill tells you before it runs, not after.

Contributing

PRs welcome. The shape of a new skill:

skills/<your-skill>/
  SKILL.md            ← frontmatter + instructions for Claude
  run.py              ← entry point (or whatever the skill does)
  examples/           ← optional fixture so people can try without API keys
  README.md           ← optional, if extra docs help

Match the tone: direct, no fluff, honest about what doesn't work.

Inspiration

Learning from the best, Point Nine and other great B2B-SaaS investors who publish their playbooks publicly (Bessemer, a16z, OpenView, Lenny). These skills turn proven frameworks into one-shot scripts you can run on your own data.

Star history

If this is useful, a star helps a lot, both for visibility and for keeping us motivated to ship more.

Who built this

5050Growth, Attio CRM consultancy. Migrations, integrations, GTM systems for VCs and B2B SaaS.

Founder: Nacho Lafuente ([email protected])

If you want this kind of work built for you on your CRM, that's the day job. Otherwise, fork away.

License

MIT, see LICENSE.