Agent skill

Memstack Development Performance Audit

by cwinvestments in cwinvestments/memstack

A skill your agent uses when the user says 'performance audit', 'why is it slow', 'optimize performance', 'page speed', 'Core Web Vitals', 'lighthouse', 'load time', or needs to diagnose and fix…

ProprietaryAuto-check passedFrontend & Design

Install Memstack Development Performance Audit

skills CLI
$ npx skills add cwinvestments/memstack --skill memstack-development-performance-audit -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install cwinvestments/memstack memstack-development-performance-audit --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/cwinvestments/memstack.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/development/performance-audit .claude/skills/memstack-development-performance-audit && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
memstack-development-performance-audit
GitHub stars
423
Token cost
~4.4k tokens
SKILL.md length
868 words
Files
1
Skills in repo
87
Repo updated
First seen
Licence
Proprietary

At a glance

A skill your agent uses when the user says 'performance audit', 'why is it slow', 'optimize performance', 'page speed', 'Core Web Vitals', 'lighthouse', 'load time', or needs to diagnose and fix…

  • Works in 9 steps: Gather Inputs → Frontend: Bundle Analysis → Frontend: Core Web Vitals → …
  • The user says performance audit
  • SKILL.md covers Activation, Protocol, Inputs and Outputs, plus 1 more section
  • Calls npx, node and bundle

What it does

Memstack Development Performance Audit is an agent skill from cwinvestments/memstack. Use this skill when the user says 'performance audit', 'why is it slow', 'optimize performance', 'page speed', 'Core Web Vitals', 'lighthouse', 'load time', or needs to diagnose and fix frontend or backend performance issues. Do NOT use for code reviews or security audits.

Its SKILL.md is about 4.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Frontend & Design, covering Web performance. The repository describes itself as: Structured skill framework for Claude Code. 130 skills, persistent memory, TokenStack compression, localhost dashboard with 3-agent runner, real-time streaming, MCP tools.

When your agent uses it

  • The user says performance audit
  • Optimize performance
  • Core Web Vitals
  • Needs to diagnose and fix frontend

Example prompts

  • “performance audit”
  • “why is it slow”
  • “optimize performance”
  • “/memstack-development-performance-audit”

Requirements

  • Node.js

Workflow steps

9 steps, taken from the step headings in SKILL.md.

  1. Gather Inputs
  2. Frontend: Bundle Analysis
  3. Frontend: Core Web Vitals
  4. Frontend: React Performance
  5. Backend: Database Performance
  6. Backend: API Performance
  7. Backend: Memory & Resource Leaks
  8. Network Performance
  9. Performance Scorecard

What it can do on your machine

Read from SKILL.md and the folder at commit 00370ce. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npx
    • node
    • bundle

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use npx, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Memstack Development Performance Audit loads about 4.4k tokens when it runs. Until then it costs about 78 tokens; SKILL.md has 868 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~78
When it runs · the whole SKILL.md, loaded when a task matches
~4.4k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Proprietary) doesn't allow us to republish the file, so here is its outline and opening line. It has 868 words (~4,411 tokens).

“Identify and prioritize performance bottlenecks across frontend, backend, and network layers with measured impact and fix priority.”

— opening of SKILL.md by cwinvestments, Proprietary
name
memstack-development-performance-audit
version
1.0.0
license
Proprietary, MemStack™ Pro by CW Affiliate Investments LLC. See LICENSE.txt

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/development/performance-audit of cwinvestments/memstack.

Open the folder on GitHubat commit 00370ce

Compare with similar skills

Memstack Development Performance Audit next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Memstack Development Performance Audit compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Memstack Development Performance Audit this skillcwinvestments/memstack423—~4.4kAutomated safety check: PassProprietary
React Doctormakeplane/plane60k12 repos~657Automated safety check: PassAGPL-3.0
React Frontend Development Guidelinesdiet103/claude-code-infrastructure-showcase10k2 repos~2.9kAutomated safety check: PassMIT
Performance ProfilingxenitV1/Antigravity-Workflows1307 repos~772Automated safety check: NotesMIT
React Best Practicesryokun6/ryos1.3k—~2kAutomated safety check: PassMIT
React Best Practicespoteto/noodle420—~1.4kAutomated safety check: PassMIT

Similar skills

  • React Doctor

    makeplane/plane

    Scans React code for lint, accessibility, bundle size and architecture issues, reports a health score and checks that changes do not lower it.

    60k GitHub starsUsed in 12 repos~657 tokens
    Frontend & DesignAuto-check passed
  • React Frontend Development Guidelines

    diet103/claude-code-infrastructure-showcase

    Guidelines for React 18 and TypeScript apps covering Suspense data fetching, lazy loading, feature folders, MUI v7 styling, TanStack Router and performance.

    10k GitHub starsUsed in 2 repos~2.9k tokens
    Frontend & DesignAuto-check passed
  • Performance Profiling

    xenitV1/Antigravity-Workflows

    Performance profiling principles. An agent skill from xenitV1/Antigravity-Workflows.

    130 GitHub starsUsed in 7 repos~772 tokens
    Frontend & DesignAuto-check: notes
  • React performance optimization guidelines from Vercel Engineering (vercel-labs/agent-skills).

    1.3k GitHub stars~2k tokensUpdated today
    Frontend & DesignAuto-check passed
  • React performance optimization guidelines. An agent skill from poteto/noodle.

    420 GitHub stars~1.4k tokensUpdated 6 mo ago
    Frontend & DesignAuto-check passed
  • Vercel React Best Practices

    gambitph/Stackable

    React performance optimization guidelines from Vercel Engineering.

    350 GitHub stars~2k tokensUpdated today
    Frontend & DesignAuto-check passed

More from cwinvestments/memstack

All 87 skills in this repo
  • Memstack SEO Site Audit

    cwinvestments/memstack

    A skill your agent uses when the user says 'SEO audit', 'site audit', 'check SEO', 'audit my site', 'SEO check', 'technical SEO', or is evaluating a website's search engine optimization health, meta…

    423 GitHub stars~3.5k tokensUpdated 11 days ago
    Auto-check passed
  • Memstack SEO Schema Markup

    cwinvestments/memstack

    A skill your agent uses when the user says 'add schema', 'schema markup', 'JSON-LD', 'structured data', 'rich results', 'rich snippets', or is adding or fixing schema.org structured data for better…

    423 GitHub stars~2.7k tokensUpdated 11 days ago
    Auto-check passed
  • Compress

    cwinvestments/memstack

    A skill your agent uses when the user says 'tokenstack', 'compression', 'token savings', 'proxy status', or asks about context window usage.

    423 GitHub stars~1.2k tokensUpdated 11 days ago
    Auto-check passed
  • Diary

    cwinvestments/memstack

    A skill your agent uses when the user says 'save diary', 'log session', 'wrapping up', or at end of a productive session.

    423 GitHub stars~5k tokensUpdated 11 days ago
    Auto-check passed
  • Echo

    cwinvestments/memstack

    A skill your agent uses when the user references past sessions, asks 'what did we do', 'do you remember', 'last session', 'recall', or 'continue from'.

    423 GitHub stars~1.7k tokensUpdated 11 days ago
    Auto-check passed
  • Familiar

    cwinvestments/memstack

    A skill your agent uses when the user says 'dispatch', 'send familiar', 'split task', or needs work split across parallel CC sessions.

    423 GitHub stars~556 tokensUpdated 11 days ago
    Auto-check passed

Questions about Memstack Development Performance Audit

What does Memstack Development Performance Audit do?

A skill your agent uses when the user says 'performance audit', 'why is it slow', 'optimize performance', 'page speed', 'Core Web Vitals', 'lighthouse', 'load time', or needs to diagnose and fix…. Memstack Development Performance Audit is an agent skill from cwinvestments/memstack. Use this skill when the user says 'performance audit', 'why is it slow', 'optimize performance', 'page speed', 'Core Web Vitals', 'lighthouse', 'load time', or needs to diagnose and fix frontend or backend performance issues.

When should I use Memstack Development Performance Audit?

Memstack Development Performance Audit fits situations like: the user says performance audit; optimize performance; core Web Vitals; needs to diagnose and fix frontend.

How do I install Memstack Development Performance Audit in Claude Code?

Run `npx skills add cwinvestments/memstack --skill memstack-development-performance-audit -a claude-code`. Or copy the skill folder (skills/development/performance-audit in cwinvestments/memstack) into .claude/skills/memstack-development-performance-audit in your project. Claude Code loads it when a task matches its description.

How do I install Memstack Development Performance Audit in Codex?

Run `npx skills add cwinvestments/memstack --skill memstack-development-performance-audit -a codex`. Or copy the skill folder (skills/development/performance-audit in cwinvestments/memstack) into .agents/skills/memstack-development-performance-audit in your project. Codex loads it when a task matches its description.

Can I use Memstack Development Performance Audit in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add cwinvestments/memstack --skill memstack-development-performance-audit -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/memstack-development-performance-audit, .gemini/skills/memstack-development-performance-audit, .github/skills/memstack-development-performance-audit and .opencode/skills/memstack-development-performance-audit in your project.

What does Memstack Development Performance Audit need to run?

Going by SKILL.md and its folder, Memstack Development Performance Audit needs the command-line tools its instructions call (npx, node and bundle). Our summary lists: Node.js.

Does Memstack Development Performance Audit access the network?

SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Memstack Development Performance Audit safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Memstack Development Performance Audit use?

Memstack Development Performance Audit carries a proprietary licence (declared in SKILL.md). It is published on GitHub, but it is not open source: read the licence file before using or sharing it.

How many tokens does Memstack Development Performance Audit use?

About 4.4k tokens (SKILL.md is roughly 18k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Memstack Development Performance Audit?

Skills that share tags, products or a category with Memstack Development Performance Audit: React Doctor (makeplane/plane, 60k stars), React Frontend Development Guidelines (diet103/claude-code-infrastructure-showcase, 10k stars), Performance Profiling (xenitV1/Antigravity-Workflows, 130 stars) and React Best Practices (ryokun6/ryos, 1.3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Memstack Development Performance Audit?

cwinvestments (a GitHub user) maintains it in cwinvestments/memstack, which has 423 GitHub stars. The repository holds 87 skills in this directory. The repository was last updated on September 26, 2026.

Source: cwinvestments/memstack on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.