DRY Refactoring With jscpd
kucherenko/jscpd
Removes copy-paste duplication found by jscpd, starting with exact clones and hotspots, then renamed and near-miss copies, using proven refactoring strategies.
TypeScript coding standards — apply when writing, reviewing, or refactoring .ts/.tsx, or naming/renaming .ts files (camelCase casing).
Install Typescript
$ npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode typescript --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/typescript .claude/skills/typescript && rm -rf skills-srcUse ~/.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/
Install the "typescript" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/typescript into .claude/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/typescriptType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode typescript --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/typescript .agents/skills/typescript && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "typescript" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/typescript into .agents/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode typescript --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/typescript .cursor/skills/typescript && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "typescript" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/typescript into .cursor/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/forcedotcom/salesforcedx-vscode.git --path .claude/skills/typescript--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode typescript --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/typescript .gemini/skills/typescript && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "typescript" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/typescript into .gemini/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install forcedotcom/salesforcedx-vscode typescriptInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/typescript .github/skills/typescript && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "typescript" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/typescript into .github/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install forcedotcom/salesforcedx-vscode typescript --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/forcedotcom/salesforcedx-vscode.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/typescript .opencode/skills/typescript && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "typescript" agent skill from https://github.com/forcedotcom/salesforcedx-vscode/tree/develop/.claude/skills/typescript into .opencode/skills/typescript/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "typescript", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
typescript- GitHub stars
- 1k
- Token cost
- ~427 tokens
- SKILL.md length
- 195 words
- Files
- 1
- Skills in repo
- 37
- Repo updated
- First seen
- Licence
- BSD-3-Clause
At a glance
TypeScript coding standards — apply when writing, reviewing, or refactoring .ts/.tsx, or naming/renaming .ts files (camelCase casing).
- Tasks that involve Code quality
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Tasks that involve React components
- Tasks that involve Refactoring
What it does
Typescript is an agent skill from forcedotcom/salesforcedx-vscode. TypeScript coding standards — apply when writing, reviewing, or refactoring .ts/.tsx, or naming/renaming .ts files (camelCase casing).
Its SKILL.md is about 430 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 Development, covering Code quality, React components and Refactoring. It works with TypeScript. The repository describes itself as: Salesforce Extensions for VS Code. The licence is BSD-3-Clause.
When your agent uses it
- Tasks that involve Code quality
- Tasks that involve React components
- Tasks that involve Refactoring
Example prompts
- “/typescript”
What it can do on your machine
Read from SKILL.md and the folder at commit 27807f6. 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
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
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
Typescript loads about 427 tokens when it runs. Until then it costs about 36 tokens; SKILL.md has 195 words of instructions outside code blocks.
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
The full file from forcedotcom/salesforcedx-vscode at commit 27807f6, republished under its BSD-3-Clause licence (© forcedotcom). 195 words, ~427 tokens.
Download SKILL.mdSave it as
.claude/skills/typescript/SKILL.md (or your agent's skills folder).- name
- typescript
- description
- TypeScript coding standards — apply when writing, reviewing, or refactoring .ts/.tsx, or naming/renaming .ts files (camelCase casing).
- review
- never
- no barrel files
- no
voidfor async - use async/effect (exception vscode-window-messages) - no
export *- name exports explicitly - prefer
undefinedover null (unless server requires null) - prefer
undefinedover empty string - prefer map/filter over loops/conditionals
- avoid mutation
- avoid
any - derive types from the source of truth; don't hand-write or narrow them to satisfy the compiler. ex: use ReturnType<> to match something
- no enums or namespaces (enums compile to weird JS; use string union types instead; exception: interfaces defined outside this repo that we can't change)
- no runtime errors for developer mistakes (use types to ensure exhaustive switch/case; don't throw for null/undefined when input/consumer is within our control)
- .ts filenames: camelCase, no hyphens, no leading capitals
- preserve comments when refactoring; remove/fix if wrong/obsolete
- exported functions: single-line jsdoc /*_ foo _/ if name unclear; no params/return (TS provides types)
- look for uses of (Object|Map).groupBy instead of older patterns
- redundant empty-collection guards: if
arr.find/some/every/map/filter/reducealready returns the same value for an empty array, drop theif (arr.length === 0) return …guard. e.g.findon[]isundefined, so guardingreturn undefinedis dead code. - no needless const declarations: return directly instead of
const x = val; return x(exception: complex expressions where const improves readability)
© forcedotcom, BSD-3-Clause. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in .claude/skills/typescript of forcedotcom/salesforcedx-vscode.
Open the folder on GitHubat commit 27807f6
Compare with similar skills
Typescript 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Typescript this skillforcedotcom/salesforcedx-vscode | 1k | — | ~427 | Automated safety check: Pass | BSD-3-Clause | |
| DRY Refactoring With jscpdkucherenko/jscpd | 6.4k | — | ~2.1k | Automated safety check: Pass | MIT | |
| Qovery Console StandardsQovery/console | 227 | — | ~924 | Automated safety check: Pass | MIT | |
| jscpd Duplicate Code Detectorkucherenko/jscpd | 6.4k | — | ~4.5k | Automated safety check: Pass | MIT | |
| Reviewquran/quran.com-frontend-next | 1.9k | — | ~1.1k | Automated safety check: Pass | None | |
| Coding Standardsmrzmyr/pixy-mood-tracker-app | 154 | — | ~2.2k | Automated safety check: Pass | MIT |
Similar skills
Qovery Console Standards
Qovery/console
Qovery Console coding standards, architecture guidelines, naming conventions, testing practices, and development workflows.
jscpd Duplicate Code Detector
kucherenko/jscpd
Finds duplicated code in 220+ languages with jscpd, reports exact, renamed and near-miss clones in a compact agent-friendly format and measures duplication.
Review
quran/quran.com-frontend-next
Reviews PR(s) using comprehensive review guidelines including security, correctness, clean code, TypeScript, React patterns, i18n/RTL, performance, and accessibility.
Coding Standards
mrzmyr/pixy-mood-tracker-app
A skill your agent uses when writing, reviewing, or refactoring TypeScript
Typescript Best Practices
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Guide AI agents through TypeScript coding best practices including type safety, error handling, code organization, and architecture patterns.
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Command palette, CodeLens, context menus, package.nls titles, and NotificationModeService.
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Consume the salesforcedx-vscode-services extension API. An agent skill from forcedotcom/salesforcedx-vscode.
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Polish the automated CHANGELOG on develop before the next stable build.
Core Extension API
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Operate a real VS Code instance through drivable-vscode. An agent skill from forcedotcom/salesforcedx-vscode.
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Related
Works with
Categories
Questions about Typescript
What does Typescript do?
TypeScript coding standards — apply when writing, reviewing, or refactoring .ts/.tsx, or naming/renaming .ts files (camelCase casing). Typescript is an agent skill from forcedotcom/salesforcedx-vscode.ts files (camelCase casing).
When should I use Typescript?
Typescript fits situations like: tasks that involve Code quality; tasks that involve React components; tasks that involve Refactoring.
How do I install Typescript in Claude Code?
Run `npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a claude-code`. Or copy the skill folder (.claude/skills/typescript in forcedotcom/salesforcedx-vscode) into .claude/skills/typescript in your project. Claude Code loads it when a task matches its description.
How do I install Typescript in Codex?
Run `npx skills add forcedotcom/salesforcedx-vscode --skill typescript -a codex`. Or copy the skill folder (.claude/skills/typescript in forcedotcom/salesforcedx-vscode) into .agents/skills/typescript in your project. Codex loads it when a task matches its description.
Can I use Typescript 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 forcedotcom/salesforcedx-vscode --skill typescript -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/typescript, .gemini/skills/typescript, .github/skills/typescript and .opencode/skills/typescript in your project.
What does Typescript need to run?
SKILL.md names no scripts, command-line tools or credentials: Typescript is instructions for the agent only.
Does Typescript access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Typescript 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 Typescript use?
Typescript is published under the BSD-3-Clause licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Typescript use?
About 427 tokens (SKILL.md is roughly 1.7k 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 Typescript?
Skills that share tags, products or a category with Typescript: DRY Refactoring With jscpd (kucherenko/jscpd, 6.4k stars), Qovery Console Standards (Qovery/console, 227 stars), jscpd Duplicate Code Detector (kucherenko/jscpd, 6.4k stars) and Review (quran/quran.com-frontend-next, 1.9k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Typescript?
forcedotcom (a GitHub organization) maintains it in forcedotcom/salesforcedx-vscode, which has 1,035 GitHub stars. The repository holds 37 skills in this directory. The repository was last updated on October 8, 2026.
Source: forcedotcom/salesforcedx-vscode on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.