Agent skill

Conventions I18n

by stella in stella/stella

Internationalization conventions for Stella. An agent skill from stella/stella.

Apache-2.0Auto-check passedFrontend & Design

Install Conventions I18n

skills CLI
$ npx skills add stella/stella --skill conventions-i18n -a claude-code

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

GitHub CLI
$ gh skill install stella/stella conventions-i18n --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/stella/stella.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/conventions-i18n .claude/skills/conventions-i18n && 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
conventions-i18n
GitHub stars
258
Token cost
~1.4k tokens
SKILL.md length
751 words
Files
1
Skills in repo
24
Repo updated
First seen
Licence
Apache-2.0

At a glance

Internationalization conventions for Stella. An agent skill from stella/stella.

  • Works in 5 steps: Add or modify keys in → Add corresponding translations to all… → Run bun run i18n:sync from apps/web.… → …
  • Tasks that involve Internationalization
  • SKILL.md covers Stack, Supported Languages, Translation Flow and Key Naming, plus 2 more sections
  • Calls bun

What it does

Conventions I18n is an agent skill from stella/stella. Internationalization conventions for Stella. Apply when adding or modifying user-facing strings.

Its SKILL.md is about 1.4k 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 Internationalization. The repository describes itself as: Open-source legal workspace. The licence is Apache-2.0.

When your agent uses it

  • Tasks that involve Internationalization

Example prompts

  • “/conventions-i18n”

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

  1. Add or modify keys in
  2. Add corresponding translations to all target language files
  3. Run bun run i18n:sync from apps/web. This synchronizes locale
  4. Run bun run i18n:check from apps/web. Typecheck does not regenerate or
  5. Read the rendered sentence in context, including interpolation and plural

What it can do on your machine

Read from SKILL.md and the folder at commit a9618db. 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:

    • bun

    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

Conventions I18n loads about 1.4k tokens when it runs. Until then it costs about 28 tokens; SKILL.md has 751 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~28
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

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

The full file from stella/stella at commit a9618db, republished under its Apache-2.0 licence (© stella). 751 words, ~1,442 tokens.

Download SKILL.mdSave it as .claude/skills/conventions-i18n/SKILL.md (or your agent's skills folder).
name
conventions-i18n
description
Internationalization conventions for Stella. Apply when adding or modifying user-facing strings.

i18n Conventions

Internationalization conventions for Stella. Apply when adding or modifying user-facing strings.

Stack

use-intl for runtime.

Supported Languages

en is the source language. Check apps/web/src/i18n/langs/ for the current list of target languages (add translations to every .json file found there).

Translation Flow

  1. Add or modify keys in apps/web/src/i18n/langs/en.json.
  2. Add corresponding translations to all target language files found in apps/web/src/i18n/langs/ (every .json file except en.json). Write natural, idiomatic translations; avoid literal/robotic phrasing.
  3. Run bun run i18n:sync from apps/web. This synchronizes locale structure, regenerates typed messages, and updates generated glossary output. Never edit messages.gen.ts or generated terminology tables by hand.
  4. Run bun run i18n:check from apps/web. Typecheck does not regenerate or validate the catalogs, so a clean typecheck is not evidence that i18n is in sync.
  5. Read the rendered sentence in context, including interpolation and plural branches. Passing key parity is not proof that a translation is natural or that placeholders remain grammatically valid.

Key Naming

Prefer generic, reusable keys over feature-specific ones. Before adding any new i18n key, search en.json for an existing key with the same or similar wording (e.g., common.filter, common.sort, common.columns). Reuse common.* or shared namespace keys instead of creating feature-scoped duplicates like billing.expenses.deleteExpense. Feature-specific keys are only justified when the wording truly differs from the generic version (e.g., a confirmation message that mentions the resource by name).

When a translation key crosses indirection through a constant, map, prop, or helper return type, type it with TranslationKey from apps/web/src/i18n/types.ts instead of string. Missing or stale keys must fail typecheck at the point where they are stored.

Prefer complete translatable sentences over fragments assembled in JSX. Keep interpolation variables semantic ({documentName}, not {value}), use ICU plural/select branches for grammatical variation, and never concatenate translated fragments whose word order differs by locale.

Never call anything an "entity" in user-facing copy, in English or as a calque (entita, Entität, entidad, entité, entidade, encja, ...). It is the database's word for a row and means nothing to a lawyer. Name the concrete thing the string is about — document, file, folder, task, matter — and fall back to "item" only when the string genuinely covers all of them. In anonymization, what the detector finds is a match, not an entity. The item concept in glossary.json enforces this with forbiddenAlways, so it fires on the English source too, not only on translations.

Key naming, pluralization, and style rules are documented in apps/web/src/i18n/TERMINOLOGY.md.

Show full SKILL.md (349 more words)Show less

Terminology (glossary)

Canonical legal/domain terms live in apps/web/src/i18n/glossary.json (the source of truth); glossary-gen renders them into the tables in TERMINOLOGY.md. The i18n-lint checker enforces them: per concept it flags a translation that uses a forbidden rendering when the English source is about that concept (concept-gated, so a common word only fires in the right context).

When introducing a NEW concept (or changing a preferred term):

  1. Research it first. Confirm the sector-standard term and the synonyms to avoid in each language against authoritative sources (IATE/EU terminology, national legal glossaries, established legal-tech usage) — do not guess. Record the rationale in the concept's note.
  2. Add it to glossary.json, never only to TERMINOLOGY.md (the .md is generated). Run bun run i18n:sync (from apps/web) to regenerate the tables.
  3. Account for declensions/inflections. The lint matches forbidden terms whole-word (English source triggers also match their regular plural), so list the actual inflected, declined, and compound forms a translator might use — e.g. de Sache/Sachen/Mandatsdaten, sk Vec/veci/vecou, et asi/asja/asjad. A base form alone misses inflected drift.
  4. Pick the right ban field. forbidden is concept-gated: it fires only where the English source names the concept (or a keyTriggers path matches), which is what stops a common word from false-firing everywhere. forbiddenAlways drops that gate, for wording that is wrong in every context. Use it when a concept-gated ban would go blind the moment someone rewords the English source, and only once you have checked that no legitimate use of the word exists in that locale.
  5. Apply consistently. bun run i18n:check fails on new forbidden renderings; fix the translations, or — only for genuine pre-existing debt — grandfather with i18n-lint <dir> --write-baseline and flag for native review.

Landing (marketing) catalogs

The landing app has its own catalogs (apps/landing/src/i18n/messages/) with the same glossary enforcement plus marketing-specific rules — register per locale, the identity phrase, hero structure differences, meta-string length budgets, cognate policy, and brand handling. Before translating landing strings, read apps/landing/src/i18n/TRANSLATION.md; it explains the intent behind each rule so translations stay coherent rather than merely passing the checks. Landing gates: bun run i18n:sync and bun run i18n:check from apps/landing.

© stella, Apache-2.0. 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 .agents/skills/conventions-i18n of stella/stella.

Open the folder on GitHubat commit a9618db

Compare with similar skills

Conventions I18n 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.

Conventions I18n compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Conventions I18n this skillstella/stella258—~1.4kAutomated safety check: PassApache-2.0
Impeccablebestofjs/bestofjs3.1k26 repos~2.6kAutomated safety check: PassMIT
Chatbox i18n Translatorchatboxai/chatbox42k—~508Automated safety check: PassGPL-3.0
Internationalization Workflow with i18niOfficeAI/AionUi33k1 repos~1.9kAutomated safety check: PassApache-2.0
Enforce Rules For I18nmoeru-ai/airi50k—~1.5kAutomated safety check: PassMIT
Claude Desktop Chinese Localizationjavaht/claude-desktop-zh-cn7.5k—~1.6kAutomated safety check: PassMIT

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Questions about Conventions I18n

What does Conventions I18n do?

Internationalization conventions for Stella. An agent skill from stella/stella. Conventions I18n is an agent skill from stella/stella. Internationalization conventions for Stella.

When should I use Conventions I18n?

Conventions I18n fits situations like: tasks that involve Internationalization.

How do I install Conventions I18n in Claude Code?

Run `npx skills add stella/stella --skill conventions-i18n -a claude-code`. Or copy the skill folder (.agents/skills/conventions-i18n in stella/stella) into .claude/skills/conventions-i18n in your project. Claude Code loads it when a task matches its description.

How do I install Conventions I18n in Codex?

Run `npx skills add stella/stella --skill conventions-i18n -a codex`. Or copy the skill folder (.agents/skills/conventions-i18n in stella/stella) into .agents/skills/conventions-i18n in your project. Codex loads it when a task matches its description.

Can I use Conventions I18n 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 stella/stella --skill conventions-i18n -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/conventions-i18n, .gemini/skills/conventions-i18n, .github/skills/conventions-i18n and .opencode/skills/conventions-i18n in your project.

What does Conventions I18n need to run?

Going by SKILL.md and its folder, Conventions I18n needs the command-line tools its instructions call (bun).

Does Conventions I18n 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 Conventions I18n 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 Conventions I18n use?

Conventions I18n 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 Conventions I18n use?

About 1.4k tokens (SKILL.md is roughly 5.8k 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 Conventions I18n?

Skills that share tags, products or a category with Conventions I18n: Impeccable (bestofjs/bestofjs, 3.1k stars), Chatbox i18n Translator (chatboxai/chatbox, 42k stars), Internationalization Workflow with i18n (iOfficeAI/AionUi, 33k stars) and Enforce Rules For I18n (moeru-ai/airi, 50k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Conventions I18n?

stella (a GitHub organization) maintains it in stella/stella, which has 258 GitHub stars. The repository holds 24 skills in this directory. The repository was last updated on October 10, 2026.

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