YOUR WAY.
Baseline
AERON built from the original brief with no additional project skills installed. Inspect its initial implementation.
One identical sneaker-store brief. Four Codex experiments. Discover what happens when skills are missing, installed, explicitly requested, or guided by project instructions.
Open each actual storefront and inspect its source. These are real interactive storefronts, not static screenshots.
AERON built from the original brief with no additional project skills installed. Inspect its initial implementation.
find-skills was available, but execution history found no invocation. The existing Sites plugin workflow was used.
The published C build documents explicit reading and application of three specialist skills before implementation.
A root AGENTS.md directs discovery. The project README records find-skills discovery and approved frontend-design use.
The original website brief is preserved verbatim. Setup, discovery, verification, and project policy prompts are grouped below; copy any prompt in one click.
Perform a READ-ONLY environment audit before this experiment.
1. Identify the current workspace root.
2. List all available agent skills, including project-level, parent-directory, and user-level skills.
3. Clearly distinguish built-in system skills from externally installed skills.
4. Check whether find-skills or any third-party frontend development skills are available.
5. Identify any AGENTS.md files or inherited project instructions.
Do not install, uninstall, modify, or delete anything.
Report the exact skill names, locations, and scopes.
This experiment requires a clean baseline with no externally installed skills influencing the result.Build a complete, modern, premium e-commerce website for a fictional sneaker brand called AERON.
PROJECT REQUIREMENTS
Tech stack:
- React
- TypeScript
- Vite
- Plain CSS
Do not use paid APIs, prebuilt website templates, or a backend.
DESIGN DIRECTION
Create a visually impressive, premium, editorial-style shopping experience.
Visual style:
- Minimalist and modern
- Warm off-white and cream backgrounds
- Dark charcoal typography
- Orange accent color
- Strong typography and visual hierarchy
- Generous whitespace
- Professional spacing and alignment
- Smooth, subtle micro-interactions
- Clean product photography or visual assets
- Fully responsive layout
Avoid generic dashboard aesthetics, cyberpunk designs, and excessive gradients.
REQUIRED FEATURES
1. Responsive navigation header
2. Premium hero section with a strong headline and CTA
3. Product collection with 6 sneaker products
4. Product category filters
5. Product cards with image, name, and price
6. Product detail view
7. Shoe size selection
8. Functional add-to-cart button
9. Shopping cart with quantity controls and total price
10. Brand story section
11. Newsletter section
12. Professional footer
13. Mobile navigation
FUNCTIONAL REQUIREMENTS
- All interactive features must actually work.
- Cart and product filters must not be decorative.
- Handle invalid or missing product selections.
- Use accessible controls and visible focus states.
- Respect reduced-motion preferences.
- Avoid broken image placeholders.
- Use reliable visual assets and provide fallbacks.
- Do not implement fake payment processing.
IMPLEMENTATION
Build the complete website inside the current project.
Install dependencies when necessary.
Run the application and verify it builds successfully.
Fix implementation errors before finishing.
At the end, tell me how to preview the website.
Do not ask unnecessary questions.
Make reasonable design decisions and complete the task.I want to install exactly one agent skill for this experiment: find-skills by Vercel Labs.
Official source:
https://github.com/vercel-labs/skills/tree/main/skills/find-skills
Raw skill definition:
https://raw.githubusercontent.com/vercel-labs/skills/main/skills/find-skills/SKILL.md
IMPORTANT INSTALLATION RULES:
1. Install this skill ONLY in the current project.
2. The target must be:
.agents/skills/find-skills/SKILL.md
3. Obtain the official skill definition and preserve its contents.
4. Do NOT install anything globally.
5. Do NOT modify user-level Codex configuration.
6. Do NOT install any other skills.
7. Do NOT change the skill's original triggering description.
8. Do NOT create additional AGENTS.md instructions.
9. Do NOT start building the website.
Use the current workspace's file operations for installation.
Verify the installed skill directory and report the absolute path.
Stop after installation.We are preparing to build a premium sneaker e-commerce website using React, TypeScript, Vite, and CSS.
Before building anything, use the installed find-skills skill to discover the 3 most relevant agent skills for this project.
Look for skills covering:
- Premium frontend UI/UX design
- React and TypeScript best practices
- Web accessibility, responsiveness, or quality
Follow the discovery workflow defined in find-skills.
For each result, report:
1. Exact skill name
2. Author or source repository
3. What the skill does
4. Why it is useful for this website
5. Installation source
6. Any security or quality concerns
Prefer reputable, well-maintained sources.
Do not install anything yet.
Do not create website files yet.
Wait for my approval.I approve all three recommended skills:
1. frontend-design
Source: anthropics/skills
2. vercel-react-best-practices
Source: vercel-labs/agent-skills
3. web-design-guidelines
Source: vercel-labs/agent-skills
Install exactly these three skills.
Requirements:
- Install for Codex in the current project only.
- Do not install globally.
- Do not modify user-level Codex settings.
- Preserve the original SKILL.md files and supporting resources.
- Do not install additional skills.
- Do not execute unrelated scripts.
- Verify the installation paths and source repositories.
- Record the installed source revisions if available.
- Confirm all three skills are discoverable by Codex.
Do not create or modify website code yet.
Stop after installation and provide a brief verification report.Perform a STRICTLY READ-ONLY audit of the website-building task you just completed.
I want to verify whether the installed agent skills were actually used during implementation.
The installed skills are:
1. find-skills
2. frontend-design
3. vercel-react-best-practices
4. web-design-guidelines
For EACH skill, report:
1. Was the skill available when the task started?
2. Was its SKILL.md actually opened or read?
3. Was the skill explicitly invoked or automatically selected?
4. At what stage of development was it used?
5. Which specific instructions or guidelines were applied?
6. Which files, components, or implementation decisions were influenced by it?
7. What direct evidence from the execution history supports its usage?
IMPORTANT:
- Distinguish confirmed skill usage from assumptions.
- Do not claim a skill was used just because it was installed.
- Do not infer causation from code quality or design similarity.
- If the skill was not used, explicitly say "NOT USED".
- If usage cannot be verified, say "NOT VERIFIABLE".
- Identify any OTHER skills used, including built-in or plugin-provided skills.
Provide a summary table with:
Skill | Available | Actually Read | Used | Evidence | Affected Files/Features
Do not read or invoke any skills now.
Do not run new skill-discovery searches.
Do not modify files.
Do not install anything.
Do not run builds or tests.
Audit only the original task's available execution history.Perform a strictly READ-ONLY audit of your previous website-building task.
I want to determine whether the installed find-skills skill was automatically used.
Answer these questions:
1. Was find-skills available when the task started?
2. Did you actually invoke or read find-skills during implementation?
3. Did you execute any skill-discovery commands?
4. Did you search for additional skills?
5. Were any additional skills installed or used?
6. What evidence from the actual execution history supports your answers?
Important:
- Do not invoke find-skills now.
- Do not search for or install skills.
- Do not modify any project files.
- Do not infer skill usage merely from its availability.
- If execution history is insufficient, say "Not verifiable".
Clearly distinguish confirmed actions from assumptions.Perform a read-only verification of the completed website.
Check:
1. Whether the project builds successfully
2. Which requested features were implemented
3. Whether cart and category filtering work
4. Responsive behavior
5. Accessibility issues
6. Missing assets or broken functionality
Report any known issues.
Do not modify or improve the website.
Do not install any skills.Perform a strictly READ-ONLY audit of the original website-building task.
I need to verify whether any agent skills were actually used during implementation.
Specifically:
1. Was the Sites skill available when the website task started?
2. Did you read or invoke the Sites skill during implementation?
3. Did you read any other SKILL.md files?
4. Were any other skills actually invoked or used?
5. Provide direct evidence from the original execution history.
6. Distinguish skills that were available from skills that were actually used.
Do not invoke any skills now.
Do not modify project files.
Do not install anything.
Do not perform a new website evaluation.
Only report actions confirmed by the original task's execution history.
If evidence is unavailable, state "Not verifiable".Before building the website, explicitly read and apply these installed project-level skills:
1. frontend-design
2. vercel-react-best-practices
3. web-design-guidelines
Use frontend-design for visual direction, layout, typography, and interaction design.
Apply relevant vercel-react-best-practices guidance for React and TypeScript implementation. Ignore Next.js-specific rules that do not apply to Vite.
Apply web-design-guidelines during implementation and review the completed interface for accessibility, responsive behavior, and usability.
Do not use find-skills to discover additional skills.
Do not install any new skills.
After reading the three skills, build the website according to the original AERON specification that follows.
[PASTE THE EXACT ORIGINAL WEBSITE PROMPT HERE]
At the end, report which skill instructions were applied and provide evidence of reading each SKILL.md.# Agent Skill Discovery Policy
## Mandatory skill discovery
Before starting any substantial development, design,
testing, or refactoring task:
1. Analyze the user's request.
2. Check which relevant skills are already installed.
3. If find-skills is available, read and use it to
discover relevant specialized skills.
4. If no suitable skill is found, continue normally.
5. Never silently skip the skill-discovery step.
## Skill installation
If useful skills are discovered but not installed:
1. Recommend up to 3 relevant skills.
2. Explain their purpose and source.
3. Review obvious security risks.
4. Ask for user approval before installation.
5. Install approved skills only inside this project.
6. Never install skills globally.
## Skill usage
Before implementation:
1. Read the relevant installed SKILL.md files.
2. Apply their instructions where appropriate.
3. Do not apply irrelevant or conflicting guidance.
4. Follow the user's original project requirements.
## Reporting
At the end of each task, report:
- Which skills were discovered
- Which skills were installed
- Which skills were actually read and used
- Which files or decisions were influenced
- Any skills that were skipped and why
Never claim skill usage without execution evidence.Perform a final read-only evaluation of this website.
Evaluate the following categories from 0 to 5:
1. Visual design quality
2. Responsive mobile experience
3. Functional completeness
4. Accessibility and usability
5. Code quality and build reliability
Explain strengths and weaknesses for each category.
Include:
- Build status
- Number of functioning requested features
- Broken or incomplete functionality
- Any missing assets
- Known accessibility issues
- Skills used, only when verifiable
Do not make any changes to the project.
Do not optimize or repair anything.Note: These are the prompts shared and used throughout the recorded workflow; the repository does not contain a full independently verified chat transcript. The published site deliberately distinguishes instructions from execution evidence.
In the automatic-discovery test, find-skills was available but not read. Its mere presence did not trigger discovery.
Reading three named skills on request tests compliance with an instruction, not spontaneous skill discovery.
The AGENTS.md variant adds a standing skill-discovery policy; its README records discovery and approved skill use.