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Agent skill

Sub Skill

by MoonshotAI in MoonshotAI/kimi-code

Discover and reorganize the skill inventory into hierarchical sub-skill bundles.

MITAuto-check passedDevelopment

Install Sub Skill

skills CLI
$ npx skills add MoonshotAI/kimi-code --skill sub-skill -a claude-code

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

GitHub CLI
$ gh skill install MoonshotAI/kimi-code sub-skill --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/MoonshotAI/kimi-code.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/agent-core-v2/src/features/skill/catalog/builtin/sub-skill .claude/skills/sub-skill && 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
sub-skill
GitHub stars
7.8k
Token cost
~281 tokens
SKILL.md length
114 words
Files
3
Skills in repo
11
Repo updated
First seen
Licence
MIT

At a glance

Discover and reorganize the skill inventory into hierarchical sub-skill bundles.

  • The user asks to review
  • SKILL.md covers When to use and Sub-skills
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Consolidate skills into a parent bundle

What it does

Sub Skill is an agent skill from MoonshotAI/kimi-code. Discover and reorganize the skill inventory into hierarchical sub-skill bundles. Use when the user asks to review, group, or consolidate skills into a parent bundle.

Its SKILL.md is about 280 tokens, which your agent loads only when the skill is triggered. The skill folder holds 4 other files (for example `consolidate/SKILL.md` and `review/SKILL.md`).

It sits in Development. The repository describes itself as: Kimi Code CLI — The Starting Point for Next-Gen Agents. The licence is MIT.

When your agent uses it

  • The user asks to review
  • Consolidate skills into a parent bundle

Example prompts

  • “/sub-skill”

What it can do on your machine

Read from SKILL.md and the folder at commit 0f052fe. 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

Sub Skill loads about 281 tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 114 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~44
When it runs · the whole SKILL.md, loaded when a task matches
~281

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 MoonshotAI/kimi-code at commit 0f052fe, republished under its MIT licence (© MoonshotAI). 114 words, ~281 tokens.

Download SKILL.mdSave it as .claude/skills/sub-skill/SKILL.md (or your agent's skills folder). This skill also uses 2 other files; get the full folder from GitHub.
name
sub-skill
description
Discover and reorganize the skill inventory into hierarchical sub-skill bundles. Use when the user asks to review, group, or consolidate skills into a parent bundle.
disable-model-invocation
true
has-sub-skill
true

Sub-skill

Container skill for analyzing the local skill inventory and reorganizing it into hierarchical sub-skill bundles (has-sub-skill: true parents with children inside).

When to use

  • The user asks to review, reorganize, or consolidate skills.
  • There are many loosely-related skills that might benefit from hierarchical grouping.
  • The user wants to evaluate whether a new skill should be a sub-skill of an existing one.

Sub-skills

  • sub-skill.review — Analyze the current inventory and propose candidate sub-skill groupings.
  • sub-skill.consolidate — Apply an approved grouping by moving skills into a parent bundle, with timestamped backups.

The usual flow is sub-skill.review first (read-only proposal), then sub-skill.consolidate after the user approves a plan. Never run consolidate without an explicit go-ahead from the user.

© MoonshotAI, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files in packages/agent-core-v2/src/features/skill/catalog/builtin/sub-skill of MoonshotAI/kimi-code.

  • SKILL.md
  • consolidate/SKILL.md
  • review/SKILL.md

Open the folder on GitHubat commit 0f052fe

Compare with similar skills

Sub Skill 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.

Sub Skill compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Sub Skill this skillMoonshotAI/kimi-code7.8k—~281Automated safety check: PassMIT
Vercel Composition Patternssupabase/supabase111k59 repos~726Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers296k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k25 repos~4.2kAutomated safety check: PassMPL-2.0
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k5 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Sub Skill

What does Sub Skill do?

Discover and reorganize the skill inventory into hierarchical sub-skill bundles. Sub Skill is an agent skill from MoonshotAI/kimi-code. Discover and reorganize the skill inventory into hierarchical sub-skill bundles.

When should I use Sub Skill?

Sub Skill fits situations like: the user asks to review; consolidate skills into a parent bundle.

How do I install Sub Skill in Claude Code?

Run `npx skills add MoonshotAI/kimi-code --skill sub-skill -a claude-code`. Or copy the skill folder (packages/agent-core-v2/src/features/skill/catalog/builtin/sub-skill in MoonshotAI/kimi-code) into .claude/skills/sub-skill in your project. Claude Code loads it when a task matches its description.

How do I install Sub Skill in Codex?

Run `npx skills add MoonshotAI/kimi-code --skill sub-skill -a codex`. Or copy the skill folder (packages/agent-core-v2/src/features/skill/catalog/builtin/sub-skill in MoonshotAI/kimi-code) into .agents/skills/sub-skill in your project. Codex loads it when a task matches its description.

Can I use Sub Skill 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 MoonshotAI/kimi-code --skill sub-skill -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/sub-skill, .gemini/skills/sub-skill, .github/skills/sub-skill and .opencode/skills/sub-skill in your project.

What does Sub Skill need to run?

SKILL.md names no scripts, command-line tools or credentials: Sub Skill is instructions for the agent only.

Does Sub Skill 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 Sub Skill 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 Sub Skill use?

Sub Skill is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Sub Skill use?

About 281 tokens (SKILL.md is roughly 1.1k 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 Sub Skill?

Skills that share tags, products or a category with Sub Skill: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 296k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Sub Skill?

MoonshotAI (a GitHub organization) maintains it in MoonshotAI/kimi-code, which has 7,796 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on October 8, 2026.

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