CLDR Agent Skills

CLDR keeps reusable AI agent instructions (“skills”) in tools/skills/ under the open Agent Skills format. A skill is a folder containing a SKILL.md file with name and description metadata plus instructions for a specific CLDR task, and optionally bundled scripts or reference material. Because the format is open and supported by multiple AI coding agents, a skill written once works across any skills-compatible agent — it isn’t tied to a single vendor’s tool.

Why skills instead of ad-hoc prompts

• Repeatable: multi-step CLDR tasks (e.g. authoring RBNF rules for a new language) become a consistent, auditable procedure instead of a one-off prompt.
• Portable: the instructions live in plain Markdown in the repository, so they work the same way regardless of which agent or tool a contributor uses.
• Reviewable: since skills are checked into tools/skills/, changes to them go through the same PR review as any other code or documentation change.

Using a skill

No agent — including Claude Code — automatically discovers skills under tools/skills/ just because they’re checked into the repository. Each agent product looks for skills in its own conventional location (for example, a personal ~/.claude/skills/ folder), not in an arbitrary repo-relative directory. So tools/skills/ works as a shared, version-controlled source of truth, but you generally need to point your agent at it explicitly:

• Agents with native Agent Skills support can be configured to also load skills from tools/skills/, or you can copy/symlink a skill into that agent’s own skills folder.
• For agents with their own custom-command mechanism (for example, Claude Code’s .claude/commands/), this repository may keep a thin pointer file that just tells the agent to follow the corresponding tools/skills/<skill-name>/SKILL.md instructions, so existing shortcuts keep working without duplicating content.
• Otherwise, you can simply ask your agent to read and follow tools/skills/<skill-name>/SKILL.md directly.

Available skills

Skill	Purpose
add-rbnf	Add or expand Rule Based Number Format (RBNF) rules so numbers can be spelled out as words for a language.

Adding a new skill

See the README in tools/skills/ for the folder layout and conventions to follow when adding a new skill.