Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add LeadMagic/gtm-skills --skill developer-gtmgit clone --depth 1 https://github.com/LeadMagic/gtm-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/leadmagic/gtm-skills/developer-gtm)<a href="https://agentmods.dev/skills/leadmagic/gtm-skills/developer-gtm"><img src="https://agentmods.dev/badge/skills/leadmagic/gtm-skills/developer-gtm/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/leadmagic/gtm-skills/developer-gtm"><img src="https://agentmods.dev/badge/skills/leadmagic/gtm-skills/developer-gtm.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00156 | $0.02399 |
| Opus 5.5 | $0.00062 | $0.00960 |
| Sonnet 5.5 | $0.00031 | $0.00480 |
| Haiku 4.5 | $0.00016 | $0.00240 |
Grade A, and why
developer-gtm scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 26d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 185 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Developer GTM (Selling to Developers)
Overview
Developer go-to-market fails when teams run a generic B2B playbook at a technical buyer: gated whitepapers, "request a demo" walls, cold SDR sequences, and pricing hidden behind a sales call. Developers evaluate by building, not by sitting through pitches — and they route around anything that feels like marketing. This skill encodes the motion used by developer-first companies (Vercel, Stripe, Twilio): earn trust by helping developers ship, let the product and docs do the selling, then bring sales in to enable the champion and close the economic buyer — never to pitch the developer.
The mistake this prevents: treating developers as leads to be worked instead of builders to be unblocked, and confusing bottom-up adoption (the developer) with the top-down purchase (the economic buyer).
When to Use
- "How do we sell to developers without annoying them?"
- "Design GTM for our API / dev tool / infrastructure product"
- "Build a developer marketing or DevRel function"
- "Open-source flywheel — how do we monetize it like Next.js → Vercel?"
- "Set up a self-serve free tier that feeds enterprise sales"
- "Our SDRs are cold-calling developers and it's backfiring"
- "When should sales engage a bottom-up account?"
Authoritative Foundations
- Guillermo Rauch (Vercel founder/CEO, creator of Next.js). Vercel's wedge
is developer experience: the open-source framework (Next.js) is free and
self-hostable, and "framework-defined infrastructure" makes deploying to
Vercel the path of least resistance. Self-serve (Hobby/Pro) drives adoption;
enterprise sales arrives later because viral framework usage pulls it in. On
the WorkOS podcast Rauch frames both DX and enterprise as priorities —
developers are the advocates inside enterprise deals. Full case →
references/vercel-developer-selling.md. - James Allgrove (Stripe). "How Stripe Built a Sales Organization to Successfully Sell to Developers": instant self-serve signup and API keys, no forced contract or sales call, "build with them, not talk at them," and a sales job that unblocks developers and helps them make the internal case.
- Adam DuVander (EveryDeveloper) — Developer Marketing Does Not Exist. Marketing to developers should be invisible: education over promotion, specific not generic, with docs, tutorials, guides, open source, and tools as the marketing surface. Never waste a developer's time.
- Lee Robinson (formerly VP of Developer Experience at Vercel, 2020–2025; now VP of Developer Education at Cursor). DX as community + education + docs; templates and learning content as the top of the funnel.
- Wes Bush (ProductLed) / Elena Verna (Reforge). PQL signals and the
product-led + sales-assist hybrid that routes self-serve usage into sales at
the right moment (cross-reference
plg-strategy).
What ships with it
4 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 26d ago Changed 4e27a087d45c
- 1mo ago First seen · 185 lines · 156 tokens per session scan A 12ff61db3231
developer-gtm is a skill published in the GitHub repository LeadMagic/gtm-skills (69 stars, last pushed 13d ago), licensed MIT. It adds 156 tokens to every session and 2,399 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.
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