form-cro

form-cro is a skill for Claude Code from mysticaltech/marketingskills. It costs 97 tokens per session (2,444 once invoked), scanned A, a copy of form-cro, MIT.

A guide for improving forms such as contact, lead, demo-request, application, survey, quote, and checkout forms. Conversion rate means the share of visitors who complete the form.

In plain words
What is it for?
Use it to review form length, required information, mobile and desktop behavior, abandonment points, and how submitted data is used.
Why use it?
It helps find unnecessary fields, confusing steps, and other reasons people abandon a form before submitting it.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the marketing-skills plugin — 25 skills shipped together

Good fit Use it to review form length, required information, mobile and desktop behavior, abandonment points, and how submitted data is used.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/mysticaltech/marketingskills/form-cro
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.

Any agent
npx skills add mysticaltech/marketingskills --skill form-cro
Clone the repo
git clone --depth 1 https://github.com/mysticaltech/marketingskills

Made for: Claude Code.

Or install marketing-skills, the plugin that ships this one along with the rest of its 25 skills.

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 form-cro

README.md
[![agentmods](https://agentmods.dev/badge/skills/mysticaltech/marketingskills/form-cro/github.svg)](https://agentmods.dev/skills/mysticaltech/marketingskills/form-cro)
Your own site
<a href="https://agentmods.dev/skills/mysticaltech/marketingskills/form-cro"><img src="https://agentmods.dev/badge/skills/mysticaltech/marketingskills/form-cro/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 form-cro

Your own site · 80×15
<a href="https://agentmods.dev/skills/mysticaltech/marketingskills/form-cro"><img src="https://agentmods.dev/badge/skills/mysticaltech/marketingskills/form-cro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 97 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,444 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 92% copy Near-identical to another mod 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 $0.00097 $0.02444
Opus 5 $0.00048 $0.01222
Sonnet 5 $0.00019 $0.00489
Haiku 4.5 $0.00010 $0.00244

Measured 11d ago against content hash ec4d1d722959, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

form-cro 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 11d 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

This is a copy

92% identical to form-cro — 6 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/form-cro/SKILL.md · 428 lines

How it starts

The opening of the file, as written. The whole thing — 428 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Form CRO

You are an expert in form optimization. Your goal is to maximize form completion rates while capturing the data that matters.

Initial Assessment

Check for product marketing context first: If .claude/product-marketing-context.md exists, read it before asking questions. Use that context and only ask for information not already covered or specific to this task.

Before providing recommendations, identify:

  1. Form Type

    • Lead capture (gated content, newsletter)
    • Contact form
    • Demo/sales request
    • Application form
    • Survey/feedback
    • Checkout form
    • Quote request
  2. Current State

    • How many fields?
    • What's the current completion rate?
    • Mobile vs. desktop split?
    • Where do users abandon?
  3. Business Context

    • What happens with form submissions?
    • Which fields are actually used in follow-up?
    • Are there compliance/legal requirements?

Core Principles

1. Every Field Has a Cost

Each field reduces completion rate. Rule of thumb:

  • 3 fields: Baseline
  • 4-6 fields: 10-25% reduction
  • 7+ fields: 25-50%+ reduction

For each field, ask:

  • Is this absolutely necessary before we can help them?
  • Can we get this information another way?
  • Can we ask this later?

2. Value Must Exceed Effort

  • Clear value proposition above form
  • Make what they get obvious
  • Reduce perceived effort (field count, labels)

3. Reduce Cognitive Load

  • One question per field
  • Clear, conversational labels
  • Logical grouping and order
  • Smart defaults where possible

Field-by-Field Optimization

Email Field

  • Single field, no confirmation
  • Inline validation
  • Typo detection (did you mean gmail.com?)
  • Proper mobile keyboard

Name Fields

  • Single "Name" vs. First/Last — test this
  • Single field reduces friction
  • Split needed only if personalization requires it

Phone Number

  • Make optional if possible
  • If required, explain why
  • Auto-format as they type
  • Country code handling

Company/Organization

  • Auto-suggest for faster entry
  • Enrichment after submission (Clearbit, etc.)
  • Consider inferring from email domain

Read the full file on GitHub · 428 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. 11d ago First seen · 428 lines · 97 tokens per session scan A ec4d1d722959

Subscribe to this mod's changes

form-cro is a skill published in the GitHub repository mysticaltech/marketingskills (350 stars, last pushed 7mo ago), licensed MIT. It adds 97 tokens to every session and 2,444 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 92% identical to form-cro, differing in 6 lines, and is treated as a copy.

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