build_landing_page

build_landing_page is a command for Claude Code from HalidSaglam/saglitzdesign-mcp. It costs 33 tokens per session (2,537 once invoked), scanned A, original, MIT.

A command for designing and coding a conversion-focused landing page from start to finish. A landing page is a single web page built to guide visitors toward an action, such as signing up.

In plain words
What is it for?
Use it to create the page's design system, layout, colors, typography, SEO settings, and working implementation. It also audits and reviews the result.
Why use it?
It provides a design process, reusable design rules, code generation, checks, and visual review so the page does not rely on guesswork alone.

Command for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the saglitzdesign plugin — 9 skills, 10 commands, 2 MCP servers shipped together

Good fit Use it to create the page's design system, layout, colors, typography, SEO settings, and working implementation. It also audits and reviews the result.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/halidsaglam/saglitzdesign-mcp/build_landing_page
Install

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.

Clone the repo
git clone --depth 1 https://github.com/HalidSaglam/saglitzdesign-mcp

Made for: Claude Code.

Or install saglitzdesign, the plugin that ships this one along with the rest of its 9 skills, 10 commands, 2 MCP servers.

Wrote 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.

agentmods badge for build_landing_page

README.md
[![agentmods](https://agentmods.dev/badge/commands/halidsaglam/saglitzdesign-mcp/build_landing_page/github.svg)](https://agentmods.dev/commands/halidsaglam/saglitzdesign-mcp/build_landing_page)
Your own site
<a href="https://agentmods.dev/commands/halidsaglam/saglitzdesign-mcp/build_landing_page"><img src="https://agentmods.dev/badge/commands/halidsaglam/saglitzdesign-mcp/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.

agentmods 80×15 button for build_landing_page

Your own site · 80×15
<a href="https://agentmods.dev/commands/halidsaglam/saglitzdesign-mcp/build_landing_page"><img src="https://agentmods.dev/badge/commands/halidsaglam/saglitzdesign-mcp/build_landing_page.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 33 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 2,537 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00033 $0.02537
Opus 5 $0.00016 $0.01269
Sonnet 5 $0.00007 $0.00507
Haiku 4.5 $0.00003 $0.00254

Measured 6d ago against content hash 86e6cc748fdf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

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 6d 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.

Origin

Copies of this mod

2 near-identical copies found in the catalogue:

commands/build_landing_page.md · 104 lines

How it starts

The opening of the file, as written. The whole thing — 104 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Build a high-converting landing page, using the SaglitzDesign method.

You have the SaglitzDesign tools available. Use them — do not design from memory.

Knowledge (judgement):

  • get_design_roadmap(project_type) — the phased plan; call FIRST on any build.
  • search_design_knowledge(query) / get_design_doc(id) — rules & specs. Ids also readable as saglitzdesign://doc/{id}.
  • get_component_guidance(component, platform) — per-component specs + patterns.
  • get_design_language(language) — Material 3 / Liquid Glass / iOS / Android / macOS / visionOS / Fluent / web-trends / tokens.
  • compare_design_languages(topic, platforms) — how each platform solves one surface, and what NOT to port.
  • get_design_examples(query, platform) — curated real-world example screens.
  • seo_geo_guide(scope, topic) — SEO & GEO for web.

Generators (real output, not advice — prefer these over inventing values):

  • create_design_system(brand_color, vibe, platform) — the one-call foundation: direction card + color + fonts + icons + type scale + elevation + tokens + component list.
  • generate_layout_system(preset) — breakpoints, containers, grid, container queries, section rhythm.
  • generate_color_system / suggest_font_pairing / suggest_icon_library / generate_type_scale / generate_elevation_system / generate_motion / generate_design_tokens — the individual layers.
  • get_component_recipe(component, stack) — production-ready accessible code for button/input/modal/toast/card/switch/tabs/empty-state/list-row/navigation/search/select/table/tooltip/form/pagination/skeleton/badge/breadcrumb.
  • fix_contrast(foreground, background, target) — the corrected color value, not just a fail report.

Auditors (deterministic gates — run these before claiming done):

  • audit_accessibility(contrast_pairs, tap_targets) — exact WCAG ratios and target sizes.
  • design_lint(code) — design & a11y anti-patterns with line numbers.
  • audit_design_system(code) — consistency score + value sprawl across the whole codebase.
  • audit_project(path) — the same auditors over a real directory instead of a pasted snippet, ranked worst-file-first. Prefer this when you have the source on disk.
  • audit_generic_design(code) — the specific defaults generated interfaces reach for (stock indigo/violet/purple gradient, Inter as the only family, the rounded-2xl card recipe, gradient headings, eyebrow-on-every-heading, three or more animate-pulse/shimmer placeholders). Facts about source, not taste. A genuine indigo brand still flags.
  • audit_ux_copy(text) — readability, passive voice, jargon, weak CTAs.
  • audit_ethical_design(code) — named deceptive-pattern tells in a pasted snippet (confirmshaming decline copy, a pre-checked marketing checkbox, literal scarcity/deadline copy with no live binding, Accept all without Reject all). Facts about source, not a verdict. Pair with get_design_doc("ethical-design").
  • audit_apple_ui(path) — iOS/macOS project directory. Reads configuration and Swift. Directory only; no snippet mode.
  • audit_android_ui(path) — Android project directory. Reads the manifest, resource XML and Compose. Directory only; no snippet mode.
  • measure_screenshot(path, scale, format) — measures a PNG screenshot's real palette, contrast ratios, density and structure, and names a stock-region fact when a significant cluster sits in Tailwind indigo/violet/purple. Use it whenever you have an image file rather than source.
  • design_review_checklist(project_type, focus) — the assembled audit checklist.

Sequence

  1. Call get_design_roadmap("landing-page") and follow its phases.
  2. Positioning & message first. If key facts are missing (who it's for, the offer, the one conversion goal, proof points, brand color), ask me up to 4 concise questions before building. Then draft the hero headline, subhead, primary CTA + risk-reducers, and the section narrative (hero → proof → benefits → objections/FAQ → final CTA). Pull rules from get_design_doc("storybrand-copywriting"), get_design_doc("conversion-ux"), get_design_doc("influence-persuasion"). Run audit_ux_copy on the headline and CTA before you commit to them.
  3. Reference real examples: get_design_examples("hero", "web"), get_design_examples("pricing", "web"), get_design_examples("social proof", "web"), and the pattern docs web-hero-sections / web-social-proof-footer / web-landing-signup.
  4. Generate the foundation — see below — with platform "web" and preset "marketing-site".
  5. Build it. Write the actual code (default to a single responsive HTML file with inline CSS unless I specify a stack like Next.js/React/Tailwind). Use get_component_recipe for the button, form, and any input so states, ARIA and keyboard support are right the first time. Run audit_ethical_design on the signup/consent/CTA snippet before you ship it.
  6. SEO/GEO: apply seo_geo_guide("both") essentials — semantic HTML, meta/title, one H1, JSON-LD, fast images/fonts.

Read the full file on GitHub · 104 lines

Changes

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.

  1. 6d ago Changed · +8 lines 86e6cc748fdf
  2. 10d ago First seen · 96 lines · 33 tokens per session scan A 7d8106483f55

Subscribe to this mod's changes

build_landing_page is a command published in the GitHub repository HalidSaglam/saglitzdesign-mcp (5 stars, last pushed 8d ago), licensed MIT. It adds 33 tokens to every session and 2,537 once invoked, about $0.0002 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 2026-08-31.