Skip to content
Agentmart
Submit a tool

esupgrade

Auto-update JavaScript and TypeScript syntax to new ECMAScript features based on browser support.

Skill by codingjoe

IndexedBSD-2-Clause★ 15
Write a review

Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/codingjoe-esupgrade

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

Get the weekly diff

The weekly diff: one email a week with new agent tools, notable updates and grade changes, plus security alerts for tools you follow. Double opt-in, one-click unsubscribe.

We use your email only for this newsletter. Privacy

About

Auto-update JavaScript and TypeScript syntax to new ECMAScript features based on browser support. Use when the user asks to modernize, upgrade, or clean up JavaScript or TypeScript syntax.

Reviews

Write a review

No reviews yet. Installed it? Reviews come from verified installers only. How reviews work

Permissions

What this skill can do and what it asks for, from its SKILL.md and code. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/esupgrade

Tools it pre-approves 5

From allowed-tools in SKILL.md: the agent may use these without asking you each time.

  • Bash(npx
  • -y
  • esupgrade
  • *)
  • Read

What's inside

Skill name
esupgrade
Description
Auto-update JavaScript and TypeScript syntax to new ECMAScript features based on browser support. Use when the user asks to modernize, upgrade, or clean up JavaScript or TypeScript syntax.
License
BSD-2-Clause
Allowed tools
Bash(npx, -y, esupgrade, *), Read
Instructions
12 lines in SKILL.md · view on GitHub

Before installing

  • Pre-approves some shell commands

Agent Skills spec issues

  • name: "esupgrade" does not match folder "esugprade"

Files (1)

  • SKILL.md

SKILL.md (first lines)

Use the CLI with `npx` on files, directories, or standard input:

```console
npx -y esupgrade [--baseline <newly-available|widely-available>] [--check] [--write] <files-or-directories|->
```

- Use `--check` to preview changes and fail when updates are needed.
- Use `-` to read from standard input and write the transformed code to standard output.
- Use `--write` to apply updates in place for file inputs.
- Use `--baseline` to choose `newly-available` or `widely-available` (default).

From codingjoe/esupgrade, BSD-2-Clause.

Signals

Stars
15
Forks
2
Open issues
9
Last commit (this folder)
Jun 20, 2026 (4 months ago)
Last release
Oct 8, 2026 (21 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
BSD-2-Clause
Repository
github.com/codingjoe/esupgrade
First seen
Oct 24, 2026
Last checked
Oct 24, 2026
Source
GitHubgithub-graphql
Cite this page

esupgrade skill. Agent Mart. https://agentmart.dev/skills/codingjoe-esupgrade (last updated 2026-10-24)