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 AIDevGTM/gtm-cofounder --skill 07-the-homepagegit clone --depth 1 https://github.com/AIDevGTM/gtm-cofounderWrote 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/aidevgtm/gtm-cofounder/07-the-homepage)<a href="https://agentmods.dev/skills/aidevgtm/gtm-cofounder/07-the-homepage"><img src="https://agentmods.dev/badge/skills/aidevgtm/gtm-cofounder/07-the-homepage/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/aidevgtm/gtm-cofounder/07-the-homepage"><img src="https://agentmods.dev/badge/skills/aidevgtm/gtm-cofounder/07-the-homepage.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 | $0.00058 | $0.01019 |
| Opus 5 | $0.00029 | $0.00509 |
| Sonnet 5 | $0.00012 | $0.00204 |
| Haiku 4.5 | $0.00006 | $0.00102 |
Grade A, and why
the-homepage 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 13d 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 — 68 lines — stays where its author put it; the contents beside it link to each section on GitHub.
The homepage
Write your homepage for the person who actually reads it: the end-user developer, not the CTO who signs the check. The developer becomes your champion and sells it internally for you.
Use this when: your homepage speaks to buyers/ROI, it's clever but vague about what the thing does, or a developer can't tell in 5 seconds whether to care, and can't start in 5 minutes if they do.
The core rule (Czakon)
Address end-user developers on the homepage; put enterprise/ROI/buyer messaging on separate pages (enterprise, pricing, case studies). If you write the homepage for the buyer, you've written it for someone who isn't there.
Framework: the sections, in order (Czakon)
- Hook / core message: immediately: what is it? Use a category ("CI for monorepos"), a known-incumbent comparison ("a Datadog alternative"), or a plain statement. Headline = what it is · subhead = for whom / what job.
- Hero: a real product shot; two CTAs: Get started (signup) and Docs. Answer "what's in it for me?" up top. Lead with the how, not the why.
- Social proof, right after the hero: recognizable logos are the fastest credibility you have. Impressive dynamic metrics (users, stars) if you've got them.
- Value prop & differentiation: why you over the 10 alternatives (see
value-prop-that-converts). - Getting started: a huge conversion lever. Free trial, no credit card, quick setup. Any hard barrier sends developers straight to a competitor.
Design: clean typography, breathing room, no "salesy BS," minimal heavy interactions. An embedded playground / copy-pasteable snippet creates an instant aha.
Framework: what must be on it (Frankl)
Cross-check the copy has all six:
- the problem in the customer's language (before the solution)
- the villain / undeniable trend
- attributed proof with numbers (name · title · company)
- the inciting event / urgency
- social proof (not anonymous)
- a low-friction path to try (free tier · docs · GitHub)
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.
- 13d ago First seen · 68 lines · 58 tokens per session scan A e4bfb5490643
the-homepage is a skill published in the GitHub repository AIDevGTM/gtm-cofounder (276 stars, last pushed 5d ago), licensed MIT. It adds 58 tokens to every session and 1,019 once invoked, about $0.0003 per session on Opus 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 2026-08-30.
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