A guide to improving forms other than account sign-up forms, including contact, lead-capture, demo-request, application, survey, quote, and checkout forms.

Use it to review field counts, completion and abandonment, mobile differences, field usefulness, form messaging, and legal or compliance needs.

It helps find and remove unnecessary fields and other obstacles that cause people to abandon a form. It balances the information a business needs with the effort required from the person filling it out.

form-cro — Skill for Claude Code and Codex by rajitsaha/100xprism

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 rajitsaha/100xprism --skill form-cro

Clone the repo

git clone --depth 1 https://github.com/rajitsaha/100xprism

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/rajitsaha/100xprism/form-cro/github.svg)](https://agentmods.dev/skills/rajitsaha/100xprism/form-cro)

Your own site

<a href="https://agentmods.dev/skills/rajitsaha/100xprism/form-cro"><img src="https://agentmods.dev/badge/skills/rajitsaha/100xprism/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/rajitsaha/100xprism/form-cro"><img src="https://agentmods.dev/badge/skills/rajitsaha/100xprism/form-cro.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 84 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 2,155 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. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 1 finding, up to medium

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

medium Excessive Agency · line 40
Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.

How audits are shown

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.

Model	Per session	Once invoked
Fable 5.1	$0.00084	$0.02155
Opus 5.5	$0.00034	$0.00862
Sonnet 5.5	$0.00017	$0.00431
Haiku 4.5	$0.00008	$0.00215

Measured 1mo ago against content hash b89f989b6dab, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, 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 1mo 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.

.agents/skills/form-cro/SKILL.md · 245 lines

How it starts

The opening of the file, as written. The whole thing — 245 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Form CRO

Maximize form completion rates while capturing the data that matters.

Initial Assessment

Product context: If .agents/product-marketing-context.md exists (or .claude/product-marketing-context.md in older setups), read it first and tailor output to it; only ask for what it doesn't cover.

Before recommending, identify:

Form Type — lead capture (gated content, newsletter), contact, demo/sales request, application, survey/feedback, checkout, quote request
Current State — field count, current completion rate, mobile vs. desktop split, where users abandon
Business Context — what happens with submissions, which fields are actually used in follow-up, compliance/legal requirements

Core Principles

1. Every Field Has a Cost

Each field reduces completion. Rule of thumb: 3 fields = baseline; 4-6 fields = 10-25% reduction; 7+ fields = 25-50%+ reduction. For each field ask: Is it absolutely necessary before we can help them? Can we get it another way? Can we ask later?

2. Value Must Exceed Effort

Clear value proposition above the 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

Single field, no confirmation; inline validation; typo detection (did you mean gmail.com?); proper mobile keyboard.

Name

Test single "Name" vs. First/Last — single field reduces friction; split only if personalization requires it.

Phone Number

Make optional if possible; if required, explain why; auto-format as they type; handle country codes.

Company/Organization

Auto-suggest for faster entry; enrich after submission (Clearbit, etc.); consider inferring from email domain.

Job Title/Role

Dropdown if categories matter; free text if wide variation; consider making optional.

Message/Comments (Free Text)

Optional; reasonable character guidance; expand on focus.

Read the full file on GitHub · 245 lines

Files

What ships with it

2 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.

1mo ago First seen · 245 lines · 84 tokens per session scan A b89f989b6dab

Subscribe to this mod's changes

form-cro is a skill published in the GitHub repository rajitsaha/100xprism (10 stars, last pushed today), licensed MIT. It adds 84 tokens to every session and 2,155 once invoked, about $0.0003 per session on Opus 5.5. 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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form-cro