Agent skill

Build Cs Skill

by codestable in codestable/CodeStable

CodeStable skill authoring and evolution protocol. An agent skill from codestable/CodeStable.

No licenceAuto-check passedAgent Workflows

Install Build Cs Skill

skills CLI
$ npx skills add codestable/CodeStable --skill build-cs-skill -a claude-code

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

GitHub CLI
$ gh skill install codestable/CodeStable build-cs-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/codestable/CodeStable.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/build-cs-skill .claude/skills/build-cs-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
build-cs-skill
GitHub stars
1.1k
Token cost
~3k tokens
SKILL.md length
1,236 words
Files
5 (incl. references)
Skills in repo
10
Repo updated
First seen
Licence
None found

At a glance

CodeStable skill authoring and evolution protocol. An agent skill from codestable/CodeStable.

  • Works in 8 steps: Establish scope and responsibility → Choose the minimum shape → Place every rule once → …
  • Reviewing cs- skills under plugins/codestable/skills
  • SKILL.md covers Purpose, Scope And References, Spec and Build Protocol, plus 2 more sections
  • Calls git

What it does

Build Cs Skill is an agent skill from codestable/CodeStable. CodeStable skill authoring and evolution protocol. Use when creating, refactoring, simplifying, or reviewing cs- skills under plugins/codestable/skills or .claude/skills. Produces a thin harness, an explicit context plan, evidence gates, and an optional agent collaboration contract. Do not use for product implementation; use eval-cs-skill only for measured experiment loops.

Its SKILL.md is about 3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including reference files (for example `agents/openai.yaml`, `references/cs-skill-fixture-patterns.md` and `references/cs-skill-quality-gates.md`).

It sits in Agent Workflows, covering Skill authoring and Refactoring. The repository describes itself as: CodeStable 是一套面向严肃软件工程、坚持人在环的 AI 编码工作流。它不以编排 Agent 为中心,而是组织需求、架构、特性、问题与历史决策,让 Codex 和 Claude 驱动的开发过程可控、可追溯、可持续演进。

When your agent uses it

  • Reviewing cs- skills under plugins/codestable/skills
  • Product implementation
  • Use eval-cs-skill only for measured experiment loops

Example prompts

  • “/build-cs-skill”

Workflow steps

8 steps, taken from the step headings in SKILL.md.

  1. Establish scope and responsibility
  2. Choose the minimum shape
  3. Place every rule once
  4. Build the context plan before the harness
  5. Write the thin harness
  6. Add collaboration only when useful
  7. Preserve hard contracts
  8. Compress, validate, and finish

What it can do on your machine

Read from SKILL.md and the folder at commit 19c796d. 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:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use git, 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

Build Cs Skill loads about 3k tokens when it runs, and up to ~13k if it reads all its reference files. Until then it costs about 98 tokens; SKILL.md has 1,236 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~98
When it runs · the whole SKILL.md, loaded when a task matches
~3k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~13k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 1,236 words (~3,004 tokens).

“Build the smallest always-loaded control surface that lets an agent select relevant context, respect hard gates, collaborate safely, and leave recoverable evidence. SKILL.md is the thin harness; references and repository facts are thick context. Thick means decision-useful, not large.”

— opening of SKILL.md by codestable
name
build-cs-skill

Read the full SKILL.md on GitHub

Files

SKILL.md and 4 other files (references) in .claude/skills/build-cs-skill of codestable/CodeStable.

  • SKILL.md
  • agents/openai.yaml
  • references/cs-skill-fixture-patterns.md
  • references/cs-skill-quality-gates.md
  • references/cs-skill-spec-standard.md

Open the folder on GitHubat commit 19c796d

Compare with similar skills

Build Cs 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.

Build Cs Skill compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Build Cs Skill this skillcodestable/CodeStable1.1k—~3kAutomated safety check: PassNone
Auto Skill Buildertradecatlabs/vibe-coding-cn17k1 repos~2.4kAutomated safety check: PassMIT
Aliyun Skill Creatorcinience/alicloud-skills397—~2.8kAutomated safety check: PassApache-2.0
Skill Writingmillionco/expect3.6k—~1.8kAutomated safety check: PassCustom licence
Skill Creatordkyazzentwatwa/chatgpt-skills112—~444Automated safety check: PassApache-2.0
Prp Meta SkillWirasm/prp2.3k—~1.8kAutomated safety check: PassMIT

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Questions about Build Cs Skill

What does Build Cs Skill do?

CodeStable skill authoring and evolution protocol. An agent skill from codestable/CodeStable. Build Cs Skill is an agent skill from codestable/CodeStable. CodeStable skill authoring and evolution protocol.

When should I use Build Cs Skill?

Build Cs Skill fits situations like: reviewing cs- skills under plugins/codestable/skills; product implementation; use eval-cs-skill only for measured experiment loops.

How do I install Build Cs Skill in Claude Code?

Run `npx skills add codestable/CodeStable --skill build-cs-skill -a claude-code`. Or copy the skill folder (.claude/skills/build-cs-skill in codestable/CodeStable) into .claude/skills/build-cs-skill in your project. Claude Code loads it when a task matches its description.

How do I install Build Cs Skill in Codex?

Run `npx skills add codestable/CodeStable --skill build-cs-skill -a codex`. Or copy the skill folder (.claude/skills/build-cs-skill in codestable/CodeStable) into .agents/skills/build-cs-skill in your project. Codex loads it when a task matches its description.

Can I use Build Cs 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 codestable/CodeStable --skill build-cs-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/build-cs-skill, .gemini/skills/build-cs-skill, .github/skills/build-cs-skill and .opencode/skills/build-cs-skill in your project.

What does Build Cs Skill need to run?

Going by SKILL.md and its folder, Build Cs Skill needs the command-line tools its instructions call (git).

Does Build Cs Skill 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 Build Cs 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 Build Cs Skill use?

No licence was found for Build Cs Skill or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Build Cs Skill use?

About 3k tokens (SKILL.md is roughly 12k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 10k tokens, read only when the agent opens those files.

What are the alternatives to Build Cs Skill?

Skills that share tags, products or a category with Build Cs Skill: Auto Skill Builder (tradecatlabs/vibe-coding-cn, 17k stars), Aliyun Skill Creator (cinience/alicloud-skills, 397 stars), Skill Writing (millionco/expect, 3.6k stars) and Skill Creator (dkyazzentwatwa/chatgpt-skills, 112 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Build Cs Skill?

codestable (a GitHub organization) maintains it in codestable/CodeStable, which has 1,112 GitHub stars. The repository holds 10 skills in this directory. The repository was last updated on August 18, 2026.

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