Avoid Numeric Index
CheckedThis skill prevents AI from using numbered lists or indices in its responses, promoting cleaner and more natural output.
Install on your platform
Showing Claude Code. One command installs this skill into any of the agents below.
- 1
Run this in your project
terminal$ npx skills add marius-townhouse/effective-typescript-skills --skill avoid-numeric-index -a claude-code Uses the open-source
skillsCLI and needs Node.js. Add-gto install it for your user instead of this project.
What we know about this skill
Publisher
marius-townhouse
Taken from the source listing. We haven't verified who controls this account.
Install target
Live repository
Not pinned. Installing fetches whatever the repository holds at the time you run the command.
Automated safety checks
This skill passed all 6 checks. We read its files at one commit and looked for the things that make a skill dangerous to run — not for whether it works.
Declares what it does: passed
SKILL.md parses and declares a name and a description.
SKILL.md exists, its frontmatter parses, and it declares a name and a description.
No undeclared network calls: passed
Makes no network calls.
Every host the skill dials — from its scripts, its config endpoints or the commands it tells the agent to run — is either well-known package and API infrastructure or declared in its own frontmatter. Links in documentation are not counted.
No obfuscated payloads: passed
No encoded or obfuscated payloads.
No base64, hex or compressed blob is decoded and then executed, and no encoded shell commands.
No credential access: passed
Reads no keys, tokens, keychains or credential files.
Neither the code nor the SKILL.md instructions read SSH keys, cloud credentials, keychains, token stores, browser cookie databases or dotfiles that hold secrets.
No pipe-to-shell installers: passed
No pipe-to-shell or download-and-run installers.
No `curl … | sh` pattern, in the code or in the instructions, that runs code fetched at run time.
Pinned to a commit: passed
Scanned marius-townhouse/effective-typescript-skills at d754db2077.
The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.
- Commit
- d754db2077
- Scanned
- 1 file, 243 lines
About this skill
What it does
This skill prevents AI agents from using numeric indexes when iterating over lists or arrays. It ensures that the agent uses more descriptive and readable methods for accessing elements, such as forEach, map, or filtering based on properties. This leads to clearer code and reduces potential errors associated with index-based access.
When to use it
- When reviewing AI-generated code that relies heavily on numeric indexes (e.g.,
for i in range(len(list))). - During code refactoring exercises where you want to improve the readability of list processing logic.
- To enforce coding style guidelines that discourage index-based iteration.
- When generating documentation or tutorials that emphasize best practices for working with lists and arrays.
Key capabilities
- Identifies instances of numeric indexing in code.
- Suggests alternative, more descriptive methods (e.g.,
forEach,map). - Automatically refactors code to avoid numeric indexes where appropriate.
Example prompts
- "Refactor this Python code to avoid using numeric indexes when iterating over the 'users' list."
- "Analyze this JavaScript function and suggest improvements for how it accesses elements in the 'products' array."
- "Rewrite this TypeScript snippet to use a more readable approach than
for (let i = 0; i < arr.length; i++)."
Tips & gotchas
The skill is most effective when applied to codebases where numeric indexing is prevalent. It may require some manual adjustments in complex scenarios or legacy code.