Guide · Agent skill
How to use the Signup Flow Optimization agent skill
Updated · written with AI from the project's own documentation and checked against our catalogue data
The signup agent skill is a set of instructions that makes your AI agent review a signup, registration or trial activation flow the way a conversion expert would. This guide explains what the skill does, how to install it, how to trigger it with plain requests, and what to check before you act on its advice. By the end you will be able to ask the agent for a prioritised list of fixes to a flow that isn't converting.
Quick start
- 1Download the ZIP. Download the signup skill ZIP from the directory page.
- 2Unzip into a skills folder. Unzip it into ~/.claude/skills/ for personal use, or into .claude/skills/ inside a project.
- 3Or upload in the Claude apps. In the Claude apps, go to Settings → Capabilities → Skills and upload the skill.
- 4Describe your signup problem. Ask in plain language, for example that your free trial signup has low completion.
- 5Answer the agent's questions. Give the flow type, number of steps, required fields and where users drop off.
- 6Review the prioritised findings. Read the issues, impacts, fixes and priorities the agent outputs.
- 7Test before rolling out. Run the suggested A/B tests and measure results with your own analytics.
What is an agent skill and what does the signup skill do?
An agent skill is a folder containing a SKILL.md file of instructions that an AI agent loads when a request matches the skill's description. The signup skill covers account creation, registration and free trial activation flows.
When it is active, the agent asks about your flow type (free trial, freemium, paid, waitlist, B2B or B2C), your current steps and where users drop off. It then recommends fewer required fields, clearer trust messaging, better error handling, mobile fixes and things to A/B test.
- Outputs a prioritised list of audit findings, each with issue, impact, fix and priority.
- Groups recommended changes into quick wins, high-impact changes and test hypotheses.
- Does not run code or change your site on its own.
- Does not have access to your analytics, so its results are expert recommendations and estimates, not measured data.
Install the signup skill from the ZIP
Download the ZIP for the signup skill from the directory page. The skill's files are evals/evals.json and SKILL.md.
You can install it in one of two ways. For a personal setup, unzip it into ~/.claude/skills/. For a single project, unzip it into the project's .claude/skills/ folder.
If you use the Claude apps, you can instead upload the skill under Settings → Capabilities → Skills.
- Personal install: unzip into ~/.claude/skills/
- Project install: unzip into .claude/skills/ inside your project
- Claude apps: Settings → Capabilities → Skills, then upload
Check the requirements
The skill lists no required tools, does not run scripts and does not use the network. You do not need API keys or extra software to use it.
The skill can read a product marketing context file if one exists at .agents/product-marketing.md, .claude/product-marketing.md, or the legacy product-marketing-context.md. If you have one, the agent will use it and ask fewer questions.
Trigger the skill with a natural request
You do not need a special command. Describe the problem in ordinary language and the agent will match it to the skill. The skill's description lists phrases such as signup conversions, registration friction, reduce signup dropoff, too many steps to sign up and simplify our signup.
Include the details the agent will ask for anyway, such as the number of steps, the fields and your completion rate. This gives a more useful first answer.
- "Our free trial signup only converts 8% of visitors. Review the flow and tell me what to fix first."
- "Nobody completes registration past the password screen. Where are people likely dropping off?"
- "Simplify our signup. It has 9 required fields and we only need email to start."
- "Review our signup form on mobile before the redesign goes live."
Read the output and decide what to change
Treat the findings as a prioritised hypothesis list. Start with the high-priority quick wins, then use the test hypotheses to design A/B experiments. Check each suggestion against your real compliance and data needs, since the skill asks about these but cannot verify them.
If the agent's answer is about post-signup setup, it belongs to the onboarding skill. For forms that capture leads without creating an account, the skill points to cro.
- Verify field removals against what you genuinely need before signup.
- Measure changes with your own analytics after you ship them.
- Use the skill's experiment ideas, such as single-step versus multi-step layouts, as starting points.
What people use it for
- Cutting a nine-field B2B trial signup down to the fields needed to start.
- Finding mobile problems such as small touch targets or wrong keyboard types on a registration form before a redesign.
- Improving error messages and inline validation on an account creation form.
- Planning A/B tests on single-step versus multi-step layouts and social sign-in placement.
- Reviewing whether email verification is blocking new users and suggesting when to delay it.
Frequently asked questions
Is the signup agent skill free?
The skill is published under the MIT licence, as stated on this page. Check the licence file in the download for the full terms before reuse.
What do I need to install the signup skill?
The skill lists no required tools, runs no scripts and uses no network access. You install it by unzipping the files into a skills folder or uploading them in the Claude apps.
Where do I put the signup skill folder?
Unzip it into ~/.claude/skills/ for a personal install, or into .claude/skills/ inside a project. In the Claude apps, upload it under Settings → Capabilities → Skills.
Will the signup skill change my website automatically?
No. The skill only reviews your flow and outputs recommendations. It does not run code or change your site.
Can the signup skill use my real conversion data?
No. It has no analytics access, so its findings are expert recommendations and estimates. You need to measure any changes with your own data.
When should I use onboarding or cro skills instead?
Use the onboarding skill for post-signup setup. Use the cro skill for lead capture forms that do not create accounts, as the signup skill's description states.
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Our verdict
The signup skill suits founders, marketers, product teams and designers whose free trial or account creation has low completion and who want a structured expert review. It is not a fit for post-signup onboarding, lead capture forms without accounts, or teams who need results from real measured data.
Download the skill