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Perf Expert

Checked
hardikpandya·vlatest·other·MIT

The Perf Expert skill analyzes code for performance bottlenecks, suggesting optimizations to improve speed and efficiency – a vital tool for developers.

Repository

Install on your platform

Showing Claude Code. One command installs this skill into any of the agents below.

  1. 1

    Run this in your project

    terminal
    $ npx skills add hardikpandya/perf-analyzer --skill perf-expert -a claude-code

  2. Uses the open-source skills CLI and needs Node.js. Add -g to install it for your user instead of this project.

What we know about this skill

Publisher

hardikpandya

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.

No human has reviewed this code. The checks below are a static scan of the files at one commit — nobody has run this skill or judged whether it works. A skill runs with whatever access you give your agent, so read the source before you install it.

Automated safety checks

scanned

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 hardikpandya/perf-analyzer at 2001d1de9d.

    The exact upstream commit SHA that was scanned is recorded, so the result refers to specific bytes.

Commit
2001d1de9d
Manifest
SKILL.md
Scanned
7 files, 797 lines
This is a static scan, not a review. It reads the skill's files; it does not run them, and it cannot tell you whether the skill is any good or whether the code does what its description says. A skill runs with whatever access you give your agent.
What each check looks for →

About this skill

What it does

The perf-expert skill provides performance analysis and optimization recommendations. It can analyze code snippets or system configurations to identify bottlenecks and suggest improvements. This includes identifying inefficient algorithms, suggesting better data structures, and recommending hardware upgrades based on workload characteristics.

When to use it

  • Debugging slow applications: Use it to pinpoint the cause of performance issues in existing software.
  • Optimizing code for efficiency: Get suggestions for improving the speed and resource usage of new or modified code.
  • Planning hardware upgrades: Determine if a system needs more RAM, faster storage, or a better processor based on its current workload.
  • Analyzing database queries: Identify slow-running queries and receive recommendations for optimization.

Key capabilities

  • Performance bottleneck identification
  • Algorithm efficiency analysis
  • Data structure suggestions
  • Hardware upgrade recommendations

Example prompts

  • "Analyze this Python code snippet for performance bottlenecks: [code snippet]"
  • "Suggest ways to optimize a database query that takes 10 seconds to run."
  • "My application is using 95% of my CPU. What hardware upgrades would you recommend?"

Tips & gotchas

The skill's effectiveness depends on the quality and completeness of the input provided. Providing context about the environment (programming language, database type, hardware specifications) will yield more accurate results.