form-cro

form-cro is a skill for Claude Code, Codex from zocomputer/skills. It costs 97 tokens per session (2,420 once invoked), scanned A, a copy of form-cro, MIT.

A guide to improving forms that are not account sign-up forms, including contact, lead, survey, application, demo-request, and checkout forms. It focuses on making forms easier to complete while collecting useful information.

In plain words
What is it for?
Use it to assess form fields, completion problems, mobile behavior, abandonment points, and ways to improve lead or checkout submissions.
Why use it?
It helps identify unnecessary fields and other sources of friction that cause people to abandon forms.

Skill for Claude CodeCodex

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

Made for: Claude Code, Codex.

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/zocomputer/skills/form-cro.svg)](https://agentmods.dev/skills/zocomputer/skills/form-cro)
Your own site
<a href="https://agentmods.dev/skills/zocomputer/skills/form-cro"><img src="https://agentmods.dev/badge/skills/zocomputer/skills/form-cro.svg" alt="Measured on agentmods" 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 2,420 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 100% 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 $0.00097 $0.02420
Opus 5 $0.00048 $0.01210
Sonnet 5 $0.00019 $0.00484
Haiku 4.5 $0.00010 $0.00242

Measured yesterday against content hash aa50b99a07f2, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, 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 yesterday.

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

100% identical to form-cro — 3 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.

External/form-cro/SKILL.md · 429 lines

How it starts

The opening of the file, as written. The whole thing — 429 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

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

Job Title/Role

  • Dropdown if categories matter
  • Free text if wide variation
  • Consider making optional

Read the full file on GitHub · 429 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. yesterday First seen · 429 lines · 97 tokens per session scan A aa50b99a07f2

Subscribe to this mod's changes

form-cro is a skill published in the GitHub repository zocomputer/skills (45 stars, last pushed 1mo ago), licensed MIT. It adds 97 tokens to every session and 2,420 once invoked, about $0.0005 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to form-cro, differing in 3 lines, and is treated as a copy.

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