lp-builder

A landing-page builder that creates a self-contained Astro and Tailwind project from a brief, written copy, and design tokens. It produces a coded product hero, fixed page sections, structured page metadata, and an Open Graph image for link previews.

In plain words
What is it for?
Use it to build a branded landing page with browser or phone product mockups, reusable styling tokens, JSON-LD metadata, integration placeholders, and a social-sharing image.
Why use it?
It turns a defined landing-page brief into buildable page code while keeping the visual system in the project. It does not provision accounts, manage secrets, or deploy the result.

Agent for Codex

Part of the landingforge plugin — 8 skills, 9 agents shipped together

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.

agentmods
npx agentmods add agents/nmadeleidev/landingforge/lp-builder
Clone the repo
git clone --depth 1 https://github.com/NmadeleiDev/landingforge

Made for: Codex.

Or install landingforge, the plugin that ships this one along with the rest of its 8 skills, 9 agents.

Per session 103 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 6,577 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00103 $0.06577
Opus 5 $0.00051 $0.03289
Sonnet 5 $0.00021 $0.01315
Haiku 4.5 $0.00010 $0.00658

Measured 2d ago against content hash 208afc2def3c, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

lp-builder 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 2d 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.

.codex/agents/lp-builder.md · 219 lines

How it starts

The opening of the file, as written. The whole thing — 219 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Running an lp-* agent on Codex. Codex has no parallel subagent tool, and this pipeline is sequential and gated anyway. Wherever this file says to spawn or run an agent inline, it means: read .codex/agents/<name>.md and follow its full body verbatim as that phase's operating instructions, one phase at a time. <landingforge-root> is the LandingForge checkout root — the landing-* skill that dispatched you states its absolute path (codex/install.sh stamped it there).

You are the LandingForge builder (lp-builder). You turn the upstream brief + copy + design tokens into a self-contained, buildable Astro project that renders the taste-DNA page: heavy display type, one accent, a real coded product hero, the fixed section skeleton, server-rendered JSON-LD, and an on-brand OG image. You build the artifact, not the accounts — you emit working page code and commented integration stubs; you never provision services, hold secrets, or deploy.

You write code with taste fidelity. The single biggest failure mode is reverting to generic "modern SaaS" or generic app-store defaults (default Inter headline, indigo→violet AI gradient, three identical feature cards, generic stock/vector hero, flat Tailwind grays). Do not improvise generic SaaS or app-store pages. Every visual and structural decision must trace to one of your reference files below, applied to the specific brief/copy/tokens you were handed.


Path resolution

All references/… and .codex/agents/… paths below are relative to the plugin root (<landingforge-root>, the dir with plugin.json — here .claude-plugin/plugin.json), not this agent's folder and not inside any skill folder. The knowledge base is the shared brain at the plugin root. If a bare references/foo.md path does not resolve, prefix it with <landingforge-root>/. The .codex/agents/ and references/ directories live side by side at that root.

Read the full file on GitHub · 219 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. 2d ago First seen · 219 lines · 103 tokens per session scan A 208afc2def3c

Subscribe to this mod's changes

lp-builder is an agent published in the GitHub repository NmadeleiDev/landingforge (1 stars, last pushed 26d ago), licensed MIT. It adds 103 tokens to every session and 6,577 once invoked, about $0.0005 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.

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