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Agent skill

Code Explorer

by clacky-ai in clacky-ai/openclacky

A skill your agent uses when exploring, analyzing, or understanding project/code structure.

MITAuto-check passedDevelopment

Install Code Explorer

skills CLI
$ npx skills add clacky-ai/openclacky --skill code-explorer -a claude-code

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

GitHub CLI
$ gh skill install clacky-ai/openclacky code-explorer --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/clacky-ai/openclacky.git skills-src && mkdir -p .claude/skills && cp -r skills-src/lib/clacky/default_skills/code-explorer .claude/skills/code-explorer && 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
code-explorer
GitHub stars
1.2k
Token cost
~372 tokens
SKILL.md length
172 words
Files
1
Skills in repo
20
Repo updated
First seen
Licence
MIT

At a glance

A skill your agent uses when exploring, analyzing, or understanding project/code structure.

  • Works in 5 steps: List the file tree — run glob with **/*… → Read README.md — if it exists, read it… → Find relevant files — based on the task,… → …
  • Understanding project/code structure
  • SKILL.md covers Your Mission, Your Restrictions, Workflow — follow this order… and Rules
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Code Explorer is an agent skill from clacky-ai/openclacky. Use this skill when exploring, analyzing, or understanding project/code structure. Required for tasks like "analyze project", "explore codebase", "understand how X works".

Its SKILL.md is about 370 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 Development, covering Codebase onboarding. The repository describes itself as: The most Token-efficient open-source AI Agent. The licence is MIT.

When your agent uses it

  • Understanding project/code structure
  • Tasks that involve Codebase onboarding

Example prompts

  • “analyze project”
  • “explore codebase”
  • “understand how X works”
  • “/code-explorer”

Workflow steps

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

  1. List the file tree — run glob with **/* to get an overview of the project structure
  2. Read README.md — if it exists, read it to understand the project purpose and layout
  3. Find relevant files — based on the task, use grep to locate key patterns or specific files
  4. Read only what's needed — use file_reader only on the files directly relevant to the question
  5. Report clearly — provide a concise, actionable summary

What it can do on your machine

Read from SKILL.md and the folder at commit 66b741e. 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

Code Explorer loads about 372 tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 172 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~372

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 clacky-ai/openclacky at commit 66b741e, republished under its MIT licence (© clacky-ai). 172 words, ~372 tokens.

Download SKILL.mdSave it as .claude/skills/code-explorer/SKILL.md (or your agent's skills folder).
name
code-explorer
description
Use this skill when exploring, analyzing, or understanding project/code structure. Required for tasks like "analyze project", "explore codebase", "understand how X works".
name_zh
代码探索
description_zh
分析项目结构，梳理代码逻辑，回答「这个功能是怎么实现的」。
agent
coding
fork_agent
true
model
lite
forbidden_tools
write, edit
auto_summarize
true

Code Explorer Subagent

You are now running in a forked subagent mode optimized for fast code exploration.

Your Mission

Quickly explore and analyze the codebase to answer questions or gather information.

Your Restrictions

  • NO modifications: You CANNOT use write or edit tools
  • Read-only: Your role is to ANALYZE, not to change

Workflow — follow this order strictly

  1. List the file tree — run glob with **/* to get an overview of the project structure
  2. Read README.md — if it exists, read it to understand the project purpose and layout
  3. Find relevant files — based on the task, use grep to locate key patterns or specific files
  4. Read only what's needed — use file_reader only on the files directly relevant to the question
  5. Report clearly — provide a concise, actionable summary

Rules

  • Do NOT read files blindly — always have a reason before opening a file
  • Do NOT read every file in a directory — be selective
  • Prefer grep over file_reader for finding specific patterns
  • Stop as soon as you have enough information to answer the question

© clacky-ai, MIT. 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 lib/clacky/default_skills/code-explorer of clacky-ai/openclacky.

Open the folder on GitHubat commit 66b741e

Compare with similar skills

Code Explorer 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.

Code Explorer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Code Explorer this skillclacky-ai/openclacky1.2k—~372Automated safety check: PassMIT
Codebase Knowledge Graph Q&AEgonex-AI/Understand-Anything86k1 repos~1.2kAutomated safety check: PassMIT
Understand ExplainEgonex-AI/Understand-Anything86k1 repos~1.3kAutomated safety check: PassMIT
Repomix Codebase Exploreryamadashy/repomix29k1 repos~2.7kAutomated safety check: PassMIT
Code Graph Mermaid Diagramstrailofbits/skills7.4k1 repos~1.7kAutomated safety check: PassCC-BY-SA-4.0
Project Onboarding Guide from Knowledge GraphEgonex-AI/Understand-Anything86k—~1.2kAutomated safety check: PassMIT

Similar skills

  • Codebase Knowledge Graph Q&A

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Categories

Questions about Code Explorer

What does Code Explorer do?

A skill your agent uses when exploring, analyzing, or understanding project/code structure. Code Explorer is an agent skill from clacky-ai/openclacky. Use this skill when exploring, analyzing, or understanding project/code structure.

When should I use Code Explorer?

Code Explorer fits situations like: understanding project/code structure; tasks that involve Codebase onboarding.

How do I install Code Explorer in Claude Code?

Run `npx skills add clacky-ai/openclacky --skill code-explorer -a claude-code`. Or copy the skill folder (lib/clacky/default_skills/code-explorer in clacky-ai/openclacky) into .claude/skills/code-explorer in your project. Claude Code loads it when a task matches its description.

How do I install Code Explorer in Codex?

Run `npx skills add clacky-ai/openclacky --skill code-explorer -a codex`. Or copy the skill folder (lib/clacky/default_skills/code-explorer in clacky-ai/openclacky) into .agents/skills/code-explorer in your project. Codex loads it when a task matches its description.

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

What does Code Explorer need to run?

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

Does Code Explorer 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 Code Explorer 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 Code Explorer use?

Code Explorer 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 Code Explorer use?

About 372 tokens (SKILL.md is roughly 1.5k 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 Code Explorer?

Skills that share tags, products or a category with Code Explorer: Codebase Knowledge Graph Q&A (Egonex-AI/Understand-Anything, 86k stars), Understand Explain (Egonex-AI/Understand-Anything, 86k stars), Repomix Codebase Explorer (yamadashy/repomix, 29k stars) and Code Graph Mermaid Diagrams (trailofbits/skills, 7.4k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Code Explorer?

clacky-ai (a GitHub organization) maintains it in clacky-ai/openclacky, which has 1,204 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on October 8, 2026.

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