Install the "add-locale" agent skill from https://github.com/polarsource/polar/tree/main/.agents/skills/add-locale into .claude/skills/add-locale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-locale", 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.
Type 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.
skills CLI
$ npx skills add polarsource/polar --skill add-locale -a codex
Project install goes to .agents/skills/; add -g for ~/.codex/skills/.
Install the "add-locale" agent skill from https://github.com/polarsource/polar/tree/main/.agents/skills/add-locale into .agents/skills/add-locale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-locale", 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.
skills CLI
$ npx skills add polarsource/polar --skill add-locale -a cursor
Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.
Install the "add-locale" agent skill from https://github.com/polarsource/polar/tree/main/.agents/skills/add-locale into .cursor/skills/add-locale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-locale", 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.
--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
skills CLI
$ npx skills add polarsource/polar --skill add-locale -a gemini-cli
Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.
Install the "add-locale" agent skill from https://github.com/polarsource/polar/tree/main/.agents/skills/add-locale into .gemini/skills/add-locale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-locale", 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.
GitHub CLI
$ gh skill install polarsource/polar add-locale
Installs 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).
skills CLI
$ npx skills add polarsource/polar --skill add-locale -a github-copilot
Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.
Install the "add-locale" agent skill from https://github.com/polarsource/polar/tree/main/.agents/skills/add-locale into .github/skills/add-locale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-locale", 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.
skills CLI
$ npx skills add polarsource/polar --skill add-locale -a opencode
OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
Install the "add-locale" agent skill from https://github.com/polarsource/polar/tree/main/.agents/skills/add-locale into .opencode/skills/add-locale/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-locale", 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
add-locale
GitHub stars
10k
Token cost
~844 tokens
SKILL.md length
331 words
Files
1
Skills in repo
17
Repo updated
First seen
Licence
Apache-2.0
At a glance
Add a new translation locale to the Polar frontend. An agent skill from polarsource/polar.
Works in 7 steps: Sync main → Create the branch → Register the locale → …
Tasks that involve Internationalization
SKILL.md covers Step 1: Sync main, Step 2: Create the branch, Step 3: Register the locale and Step 4: Generate the…, plus 3 more sections
Calls git and pnpm
What it does
Add Locale is an agent skill from polarsource/polar. Add a new translation locale to the Polar frontend. Walks through registering the locale, generating translations, wiring the generated file into the i18n package, and updating the public-facing docs. Expects the target locale's ISO 639-1 alpha-2 code (optionally with a BCP-47 region suffix, e.g. pt-PT).
Its SKILL.md is about 840 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 Internationalization, Translation and DataFrames. The repository describes itself as: Polar — A billing platform for the intelligence era. The licence is Apache-2.0.
Read from SKILL.md and the folder at commit 71c1ac6. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
Read
Edit
Write
Bash
Grep
Glob
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
git
pnpm
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git and pnpm, 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
Add Locale loads about 844 tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 331 words of instructions outside code blocks.
Always· name and description, kept in context so the agent knows when to use it
~80
When it runs· the whole SKILL.md, loaded when a task matches
~844
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: notes
The automated check noted patterns worth knowing about, such as sudo or a known installer.
NotePre-approves every shell command (allowed-tools: Bash)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.
Download SKILL.mdSave it as .claude/skills/add-locale/SKILL.md (or your agent's skills folder).
name
add-locale
description
Add a new translation locale to the Polar frontend. Walks through registering the locale, generating translations, wiring the generated file into the i18n package, and updating the public-facing docs. Expects the target locale's ISO 639-1 alpha-2 code (optionally with a BCP-47 region suffix, e.g. `pt-PT`).
allowed-tools
Read, Edit, Write, Bash, Grep, Glob
user-invocable
true
Add a new translation locale
This skill adds a new locale to the Polar frontend i18n package (clients/packages/i18n) and the corresponding public docs. Each step produces its own commit so the PR reads cleanly.
Ask the user for the locale if they haven't provided one. You need:
${isoAlpha2} — the locale code used as the filename and config key (e.g. ko, ja, pt-PT). This is the value appended to SUPPORTED_LOCALES verbatim.
${localeName} — the human-readable name used in LOCALE_NAMES (e.g. Korean (South Korea), Japanese). Follow the style of the existing entries in clients/packages/i18n/src/config.ts.
Throughout this doc, ${isoAlpha2} is substituted literally into filenames, branch names, commit messages, and identifiers.
Step 1: Sync main
bash
git checkout main
git pull --ff-only
Bail out if the working tree isn't clean — ask the user before stashing or discarding anything.
Step 2: Create the branch
bash
git checkout -b add-locale-${isoAlpha2}
Step 3: Register the locale
Edit clients/packages/i18n/src/config.ts:
Append '${isoAlpha2}' to the SUPPORTED_LOCALES tuple (keep the as const).
Add a ${isoAlpha2}: '${localeName}' entry to LOCALE_NAMES. Quote the key if it contains a dash (e.g. 'pt-PT').
import ${importName} from './locales/${isoAlpha2}'
For plain alpha-2 codes use the code itself (import ko from './locales/ko'). For hyphenated codes drop the dash and camelCase it to keep a valid identifier (import ptPT from './locales/pt-PT').
Add the locale to the translationsLocalesRecord object. Use the bare key when it's a valid identifier (ko,) or a quoted key when it's hyphenated ('pt-PT': ptPT,).
Summarize the four commits created on add-locale-${isoAlpha2} and leave the branch for the user to push and open a PR. Do not push or open a PR unless asked.
Add Locale 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.
Translates new or changed i18n keys from a Chatbox Pro diff, staged changes or a commit range, writing the locale JSON files directly with a built-in glossary.
Standards for keeping all user-facing text translatable: read the i18n config first, use namespaced keys, reuse shared strings and follow the key naming rules.
Adds missing Simplified and Traditional Chinese translations to the Claude Desktop Chinese patch across three layers, then checks how many mappings actually hit.
Reviews UniGetUI .json language files for localization quality, detects parity issues, English-equal entries, wrong-script content, and cross-language outliers, then generates a dataset for…
Check a code change against the repo's Accepted Architecture Decision Records (ADRs) in handbook/engineering/decisions/ and report violations with citations.
Add a new translation locale to the Polar frontend. An agent skill from polarsource/polar. Add Locale is an agent skill from polarsource/polar. Add a new translation locale to the Polar frontend.
When should I use Add Locale?
Add Locale fits situations like: tasks that involve Internationalization; tasks that involve Translation; tasks that involve DataFrames.
How do I install Add Locale in Claude Code?
Run `npx skills add polarsource/polar --skill add-locale -a claude-code`. Or copy the skill folder (.agents/skills/add-locale in polarsource/polar) into .claude/skills/add-locale in your project. Claude Code loads it when a task matches its description.
How do I install Add Locale in Codex?
Run `npx skills add polarsource/polar --skill add-locale -a codex`. Or copy the skill folder (.agents/skills/add-locale in polarsource/polar) into .agents/skills/add-locale in your project. Codex loads it when a task matches its description.
Can I use Add Locale 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 polarsource/polar --skill add-locale -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-locale, .gemini/skills/add-locale, .github/skills/add-locale and .opencode/skills/add-locale in your project.
What does Add Locale need to run?
Going by SKILL.md and its folder, Add Locale needs the command-line tools its instructions call (git and pnpm). Its frontmatter pre-approves these tools: Read, Edit, Write, Bash, Grep, Glob.
Does Add Locale access the network?
SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Add Locale safe to install?
Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.
What licence does Add Locale use?
Add Locale is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Add Locale use?
About 844 tokens (SKILL.md is roughly 3.4k 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 Add Locale?
Skills that share tags, products or a category with Add Locale: Chatbox i18n Translator (chatboxai/chatbox, 42k stars), Internationalization Workflow with i18n (iOfficeAI/AionUi, 33k stars), Enforce Rules For I18n (moeru-ai/airi, 50k stars) and Claude Desktop Chinese Localization (javaht/claude-desktop-zh-cn, 7.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Add Locale?
polarsource (a GitHub organization) maintains it in polarsource/polar, which has 10,343 GitHub stars. The repository holds 17 skills in this directory. The repository was last updated on October 9, 2026.
Source: polarsource/polar on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.
