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 markmhendrickson/ateles --skill build-landing-pagegit clone --depth 1 https://github.com/markmhendrickson/atelesWrote 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/markmhendrickson/ateles/build-landing-page)<a href="https://agentmods.dev/skills/markmhendrickson/ateles/build-landing-page"><img src="https://agentmods.dev/badge/skills/markmhendrickson/ateles/build-landing-page/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/markmhendrickson/ateles/build-landing-page"><img src="https://agentmods.dev/badge/skills/markmhendrickson/ateles/build-landing-page.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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 | $0.00000 | $0.05956 |
| Opus 5.5 | $0.00000 | $0.02382 |
| Sonnet 5.5 | $0.00000 | $0.01191 |
| Haiku 4.5 | $0.00000 | $0.00596 |
Grade A, and why
build-landing-page 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 1mo 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 — 468 lines — stays where its author put it; the contents beside it link to each section on GitHub.
name: build-landing-page description: "Build a landing page through explicit staged steps, each writing one durable Neotoma entity that later stages retrieve: template, CTA and content specification, best-practice research, input-context inventory and design system, then build. Consumes an already-settled argument — the ICP, the incumbent and its defects, and the chronic-versus-acute pain — from /frame-product-argument, and the category from /define-category or the product's decision register, rather than re-deriving any of them. Defers all rendered_page mechanics to /draft-rendered-page as canonical authority. Use when the user says "build a landing page", "create a landing page for X", "rebuild the homepage", or wants a product page designed rigorously rather than in one pass.\n" slug: build-landing-page user_invocable: true triggers:
- build landing page
- create landing page
- landing page
- rebuild the homepage
- product homepage
- /build-landing-page supported_harnesses:
- claude-code
- cursor entity_id: ent_0a0a481fb03a8fd9ea292bcb
build-landing-page
Build a landing page through explicit stages, each writing ONE durable Neotoma entity that the later stages retrieve. The page is the output of the final stage only. The earlier stages produce the decisions the page is built from, and each is retrievable afterwards, so a second page, a revision, or a different session reads the decision rather than re-deriving it.
The constraint this skill exists to enforce: separating the steps makes each one rigorous, instead of winging a whole site and all its design elements in one pass. A run that jumps from raw material to finished HTML has skipped the skill even if the HTML is good, because nothing downstream can tell which decisions were made or revisit one of them in isolation.
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.
- 1mo ago Changed · +74 lines 2bceafdd76fc
- 1mo ago First seen · 394 lines · 0 tokens per session scan A 2d19cf036772
build-landing-page is a skill published in the GitHub repository markmhendrickson/ateles (5 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 5,956 tokens. 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 2026-09-17.
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