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Agent skill

Claude Code

by kortix-ai in kortix-ai/suna

Drive Anthropic's Claude Code CLI (claude -p) as a non-interactive coding sub-agent from inside Codex.

Custom licenceAuto-check passedAgent Workflows

Install Claude Code

skills CLI
$ npx skills add kortix-ai/suna --skill claude-code -a claude-code

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

GitHub CLI
$ gh skill install kortix-ai/suna claude-code --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/kortix-ai/suna.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/claude-cli .claude/skills/claude-code && 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
claude-code
GitHub stars
20k
Used in
1 other repo
Token cost
~1.2k tokens
SKILL.md length
508 words
Files
1
Skills in repo
19
Repo updated
First seen
Licence
Custom licence

At a glance

Drive Anthropic's Claude Code CLI (claude -p) as a non-interactive coding sub-agent from inside Codex.

  • Works in 5 steps: Delegate — claude -p ... --output-format… → Capture — read the result from out (and… → Verify INDEPENDENTLY — do not trust… → …
  • You want to delegate a coding/analysis/refactor task to Claude
  • SKILL.md covers The core command, Permission modes (pick the…, Output & session resume and Delegation patterns, plus 1 more section
  • Calls claude and git

What it does

Claude Code is an agent skill from kortix-ai/suna. Drive Anthropic's Claude Code CLI (claude -p) as a non-interactive coding sub-agent from inside Codex. Use when you want to delegate a coding/analysis/refactor task to Claude, get a second opinion / adversarial review from another model, hand off long-context planning, or fan out parallel agents. Covers the exact claude -p flags, permission modes, output capture, JSON/stream-json modes, session resume, parallel fan-out, and the mandatory "delegate → capture → independently verify, never trust the self-report"…

Its SKILL.md is about 1.2k 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 Agent Workflows, covering Subagents, Structured output and tool calling and Refactoring. The repository describes itself as: The open-source AI Operating System.

When your agent uses it

  • You want to delegate a coding/analysis/refactor task to Claude
  • Get a second opinion / adversarial review from another model
  • Hand off long-context planning
  • Fan out parallel agents

Example prompts

  • “delegate → capture → independently verify, never trust the self-report”
  • “/claude-code”

Workflow steps

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

  1. Delegate — claude -p ... --output-format json >out 2>>log.
  2. Capture — read the result from out (and log/stream-json for detail).
  3. Verify INDEPENDENTLY — do not trust "tests pass" / "done"
  4. Iterate — if wrong, claude -p --continue "" and repeat.
  5. Report — state what changed, what you verified, and how. Say plainly when

What it can do on your machine

Read from SKILL.md and the folder at commit 0b76bd5. 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:

    • claude
    • 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

Claude Code loads about 1.2k tokens when it runs. Until then it costs about 137 tokens; SKILL.md has 508 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~137
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 508 words (~1,195 tokens).

“Claude Code is Anthropic's terminal coding agent. Its headless mode, claude -p (a.k.a. --print), makes it a disposable sub-agent: you write the metaprompt, Claude explores/edits/runs commands on its own, and returns a final message you capture and verify. You stay…”

— opening of SKILL.md by kortix-ai, Custom licence
name
claude-code
metadata.short-description
Delegate tasks to the Claude Code CLI

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/claude-cli of kortix-ai/suna.

Open the folder on GitHubat commit 0b76bd5

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in kortix-ai/suna, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Claude Code 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.

Claude Code compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Claude Code this skillkortix-ai/suna20k1 repos~1.2kAutomated safety check: PassCustom licence
Tool Designguanyang/open-agent-hub9752 repos~5kAutomated safety check: PassMIT
Workflow Orchestrationvxcozy/workflow-orchestration116—~1kAutomated safety check: PassMIT
Antigravity Agentsmarkfulton/claude-antigravity-agents130—~2.1kAutomated safety check: PassMIT
Orchestrate RoundArch1eSUN/Arcgentic286—~1.5kAutomated safety check: PassMIT
Subagent Coordinatorflyxl/datazen114—~908Automated safety check: PassGPL-3.0

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Categories

Questions about Claude Code

What does Claude Code do?

Drive Anthropic's Claude Code CLI (claude -p) as a non-interactive coding sub-agent from inside Codex. Claude Code is an agent skill from kortix-ai/suna. Drive Anthropic's Claude Code CLI (claude -p) as a non-interactive coding sub-agent from inside Codex.

When should I use Claude Code?

Claude Code fits situations like: you want to delegate a coding/analysis/refactor task to Claude; get a second opinion / adversarial review from another model; hand off long-context planning; fan out parallel agents.

How do I install Claude Code in Claude Code?

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

How do I install Claude Code in Codex?

Run `npx skills add kortix-ai/suna --skill claude-code -a codex`. Or copy the skill folder (.agents/skills/claude-cli in kortix-ai/suna) into .agents/skills/claude-code in your project. Codex loads it when a task matches its description.

Can I use Claude Code 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 kortix-ai/suna --skill claude-code -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/claude-code, .gemini/skills/claude-code, .github/skills/claude-code and .opencode/skills/claude-code in your project.

What does Claude Code need to run?

Going by SKILL.md and its folder, Claude Code needs the command-line tools its instructions call (claude and git).

Does Claude Code 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 Claude Code 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 Claude Code use?

Claude Code has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Claude Code use?

About 1.2k tokens (SKILL.md is roughly 4.8k 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 Claude Code?

Skills that share tags, products or a category with Claude Code: Tool Design (guanyang/open-agent-hub, 975 stars), Workflow Orchestration (vxcozy/workflow-orchestration, 116 stars), Antigravity Agents (markfulton/claude-antigravity-agents, 130 stars) and Orchestrate Round (Arch1eSUN/Arcgentic, 286 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Claude Code?

kortix-ai (a GitHub organization) maintains it in kortix-ai/suna, which has 20,258 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 8, 2026.

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