A set of methods for improving forms used to collect leads, contact requests, demo bookings, applications, or purchases.

Use it to review field costs, design multi-step forms, improve validation messages, adapt forms for mobile, and plan A/B tests.

It helps find where form fields discourage people from completing the form and how to make forms easier to use on phones.

form-cro — Skill for Claude Code by borghei

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 borghei/Claude-Skills --skill form-cro

Clone the repo

git clone --depth 1 https://github.com/borghei/Claude-Skills

Made for: Claude Code.

Or install business-growth-skills, the plugin that ships this one along with the rest of its 20 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/borghei/claude-skills/form-cro/github.svg)](https://agentmods.dev/skills/borghei/claude-skills/form-cro)

Your own site

<a href="https://agentmods.dev/skills/borghei/claude-skills/form-cro"><img src="https://agentmods.dev/badge/skills/borghei/claude-skills/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/borghei/claude-skills/form-cro"><img src="https://agentmods.dev/badge/skills/borghei/claude-skills/form-cro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 43 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,996 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 unknown 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.

Model	Per session	Once invoked
Fable 5.1	$0.00043	$0.04996
Opus 5	$0.00022	$0.02498
Sonnet 5	$0.00009	$0.00999
Haiku 4.5	$0.00004	$0.00500

Measured 5d ago against content hash 2ba2334e403e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, 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 5d ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/ab_test_calculator.py, scripts/field_cost_analyzer.py, scripts/form_scorer.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

business-growth/form-cro/SKILL.md · 495 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

Files

What ships with it

3 files 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.

5d ago First seen · 495 lines · 43 tokens per session scan A 2ba2334e403e

Subscribe to this mod's changes

form-cro is a skill published in the GitHub repository borghei/Claude-Skills (722 stars, last pushed 27d ago), with no licence file. It adds 43 tokens to every session and 4,996 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 2026-09-03.

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form-cro