Skip to content
Get packs

Guide · Agent skill

How to use the Improve Front-End Rule agent skill

Updated · written with AI from the project's own documentation and checked against our catalogue data

The improve-rule skill is an agent skill for the Front-End Checklist project. It guides an AI agent through reviewing a rule MDX file, replacing generic prompts with specific instructions, adding missing sections, and checking the result with the project's scoring and structure commands. This guide shows you how to install the skill, ask for help with natural requests, and avoid the common pitfalls.

Improve Front-End Rulethedaviddias/Front-End-Checklist · MIT

Quick start

  1. 1Download the ZIP. Download the improve-rule skill ZIP from this page.
  2. 2Unzip into a skills folder. Unzip it into ~/.claude/skills/ for a personal install, or into .claude/skills/ inside your project for a project install.
  3. 3Or upload it in the Claude apps. If you use the Claude apps, go to Settings → Capabilities → Skills and upload the skill.
  4. 4Prepare the repository. Make sure you have a local clone of the Front-End Checklist repository with Node.js and pnpm available.
  5. 5Ask for a specific review. Name the rule MDX file and describe the goal, such as fixing stub prompts or adding missing fields.
  6. 6Run the scorer and validator. Run pnpm score:rules and pnpm validate:rule-structure on the file, then check that the score is 50 or higher and the structure passes.

What the improve-rule skill makes the agent do

Agent skills are instruction packages that an AI assistant such as Claude can load and follow when a task matches the skill's description. The improve-rule skill covers one task: reviewing and improving a rule MDX file in the Front-End Checklist project so it scores better against the project's quality rubric.

The skill tells the agent to find stub prompts, such as generic lines like 'Verify if the project adheres to' followed by the rule title, and replace them with audit and fix instructions that name the exact HTML attributes, CSS properties or JavaScript patterns involved. It also points the agent to missing parts such as tldr bullets, aiContext, related rules, resources and annotated good and bad code examples.

  • Replace stub prompts for check, fix and explain with specific instructions
  • Add or expand tldr bullets, aiContext and relatedRules
  • Add resources and ✅ / ❌ code examples to the body
  • Keep the document sections in the required order

Install the improve-rule skill

Download the ZIP for the improve-rule skill from this page. Then install it in one of two ways. For a personal install, unzip it into your ~/.claude/skills/ folder. For a project install, unzip it into the .claude/skills/ folder inside the project.

If you use the Claude apps instead, you can upload the skill under Settings → Capabilities → Skills.

  • Personal install: unzip into ~/.claude/skills/
  • Project install: unzip into .claude/skills/ in your project
  • Claude apps: Settings → Capabilities → Skills, then upload the skill

Check the requirements before you start

The skill assumes you have a local clone of the Front-End Checklist repository. Running the checks needs Node.js and pnpm, because the skill calls the pnpm score:rules and pnpm validate:rule-structure commands.

The skill is written for that project's file layout and MDX conventions. It is not a general web development assistant, and it only covers improving existing rule files.

  • A local clone of the Front-End Checklist repository
  • Node.js and pnpm installed
  • Rule files in packages/content/rules/en/{category}/{slug}.mdx

Trigger the skill with natural requests

You do not need a special command to use the skill. Describe the task in plain language, and the agent will load the skill when your request matches its description: reviewing or improving a Front-End Checklist rule MDX file, raising its quality score, fixing stub prompts, adding missing fields, or enriching content with real code examples.

Name the rule file if you can, so the agent knows which file to open.

  • Review packages/content/rules/en/forms/example-rule.mdx and tell me what is failing its quality score
  • Fix the stub prompts in this rule file
  • Add the missing tldr bullets and aiContext to this rule
  • Enrich this rule with real ✅ and ❌ code examples

Score and validate a rule

Run the scorer on one rule to see its current score. Then run the structure validator on the same file. The rubric uses a passing target of 50 or higher. A pull request review should also confirm that the validator passes and that the file has no stub prompts.

The rule body should follow a set order: an intro paragraph before any H2, a Code Example or Code Examples section, then Why It Matters, optional guidance sections, and a final Verification section. Use Exceptions, Automated Checks and Manual Checks, or Browser Support sections only when the rule type needs them.

  • Make sure there are no stub prompts, for example by searching for 'Verify if the project adheres to'
  • Make sure there are at least 3 tldr bullets
  • Make sure whyItMatters names a user impact
  • Make sure the body has at least one ✅ and one ❌ code example
  • Make sure Verification is the final H2 and Why It Matters comes before it
pnpm score:rules packages/content/rules/en/{category}/{slug}.mdx pnpm validate:rule-structure packages/content/rules/en/{category}/{slug}.mdx

Safety notes: scripts and network access

The skill runs scripts, specifically the pnpm scoring and validation commands, so review the skill files before you install them and make sure you trust their source. The skill does not use the network.

For browser support statements, the skill tells the agent to use the repository's browser policy and package-backed compatibility data rather than its memory. Check any support claim against the project's data before you publish it.

  • The skill runs scripts (pnpm commands) on your machine
  • The skill does not use the network
  • Verify browser support claims against the project's own data

What people use it for

  • Replacing generic check, fix and explain prompts in a rule with specific audit and remediation steps
  • Adding aiContext, tldr bullets and relatedRules to a rule that is missing them
  • Adding annotated ✅ good and ❌ bad code examples to a rule body
  • Reviewing a pull request that adds or changes a rule file before merging
  • Restructuring a rule so its sections follow the required order with Verification last

Frequently asked questions

How do I install the improve-rule agent skill?

Download the ZIP from this page and unzip it into ~/.claude/skills/ for a personal install or into .claude/skills/ in a project for a project install. In the Claude apps, you can instead upload it under Settings → Capabilities → Skills.

What do I need to run the improve-rule skill?

You need a local clone of the Front-End Checklist repository, plus Node.js and pnpm, because the skill runs the pnpm score:rules and pnpm validate:rule-structure commands. The skill does not use the network.

Is the improve-rule skill free to use?

The skill is listed as MIT licensed. Check the licence text included with the skill for the full terms before you reuse it.

Can I use this skill outside the Front-End Checklist project?

The skill assumes the project's file layout, pnpm commands and MDX conventions, so it is not suited to other projects. Teams that build their own rule libraries can read the scoring rubric and adapt the approach, but the skill itself is built for this repository.

Why is my rule score below 50?

A low score usually means stub prompts, missing tldr bullets, a missing aiContext or relatedRules, or too few code examples. Run pnpm score:rules on the file, find the failing dimensions, and fix the weakest ones first.

What is the difference between the score and the structure validator?

The scorer rates how complete and useful the rule content is against the quality rubric. The structure validator checks the layout, such as heading order and whether Verification is the final H2. A rule should pass both.

New agent skills, repos and AI tools — every week

The best new skills and open-source projects, the fastest-growing repos, and one free prompt. Five minutes to read. Unsubscribe anytime.

Our verdict

Use the improve-rule skill if you maintain, contribute to or review rule files in the Front-End Checklist repository and want an agent to follow its quality standard. Pick something else if you need general web development advice, or if you work on a different project, because the skill's file layout and commands are specific to this repository.

Download the skill