marky: Precise JS Timing for Performance‑Critical Apps
From the repo · “High-resolution JavaScript timer based on performance.mark/measure (491 bytes min+gz)”
Use marky to measure how long tasks take in your JavaScript program.
"A founder of a startup uses marky to identify performance issues in their e-commerce website, which has a large number of users. They run marky on their login process, discover a slow database query, fix it, and then run marky again to confirm the improvement. Login times decrease by 30% and user satisfaction increases."
- •When building real-time web applications that require precise timing
- •When optimizing performance-critical code paths in JavaScript applications
- •When measuring the execution time of specific code blocks or functions
const marky = require('marky'); const timer = marky(); timer.start('my-mark'); for (let i = 0; i < 10000000; i++); timer.end('my-mark'); console.log(timer.getEntries()['my-mark']);Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.
Installs with a command or two; your AI agent can do it for you.
mkdir -p ~/.claude/skills/marky && curl -fsSL https://workflowstacks.com/api/skills/marky/claude-skill -o ~/.claude/skills/marky/SKILL.mdOpens the app with this repo with the prompt ready to go — no copy-paste needed.
Marky: Precise JS Timing for Performance‑Critical Apps is a tiny JavaScript project (~150 lines across 11 code files, plus 2 test files). Setup is light: installs like a normal app. Reading the code is optional. Last commit 8 months ago, Apache-2.0 license, has a test suite.
- 1README.mdStart here — what it does and how to install it
- 2src/index.jsWhere the program starts running
- 3package.jsonDependencies and the commands it exposes
Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.
Installs with a command or two; your AI agent can do it for you.
mkdir -p ~/.claude/skills/marky && curl -fsSL https://workflowstacks.com/api/skills/marky/claude-skill -o ~/.claude/skills/marky/SKILL.mdOpens the app with this repo with the prompt ready to go — no copy-paste needed.
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