Agent skill

Codebase Explorer

by greenfield-inc in greenfield-inc/Pane

Explore the codebase to locate files, trace behavior, and document existing patterns with precise file references.

Custom licenceAuto-check passed

Install Codebase Explorer

skills CLI
$ npx skills add greenfield-inc/Pane --skill codebase-explorer -a claude-code

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

GitHub CLI
$ gh skill install greenfield-inc/Pane codebase-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/greenfield-inc/Pane.git skills-src && mkdir -p .claude/skills && cp -r skills-src/main/src/services/paneChatBundle/skills/codebase-explorer .claude/skills/codebase-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
codebase-explorer
GitHub stars
519
Token cost
~266 tokens
SKILL.md length
126 words
Files
1
Skills in repo
35
Repo updated
First seen
Licence
Custom licence

At a glance

Explore the codebase to locate files, trace behavior, and document existing patterns with precise file references.

  • Works in 5 steps: Locate likely files with rg and… → Start from entry points, exports, route… → Trace data flow and control flow only as… → …
  • The task is understanding what exists
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Not proposing changes

What it does

Codebase Explorer is an agent skill from greenfield-inc/Pane. Explore the codebase to locate files, trace behavior, and document existing patterns with precise file references. Use when the task is understanding what exists, not proposing changes.

Its SKILL.md is about 270 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

The repository describes itself as: Terminal-first, open-source AI agent manager for any CLI agent (agent agnostic), any OS (mac, windows, linux). The Open-Source Agentic Development Environment for running…

When your agent uses it

  • The task is understanding what exists
  • Not proposing changes

Example prompts

  • “/codebase-explorer”

Workflow steps

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

  1. Locate likely files with rg and directory listings.
  2. Start from entry points, exports, route handlers, hooks, or public APIs.
  3. Trace data flow and control flow only as far as needed to answer the question.
  4. Group findings by purpose: implementation, config, types, tests, docs.
  5. Report what exists, where it lives, and how the pieces connect.

What it can do on your machine

Read from SKILL.md and the folder at commit b08541d. 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

Codebase Explorer loads about 266 tokens when it runs. Until then it costs about 51 tokens; SKILL.md has 126 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~51
When it runs · the whole SKILL.md, loaded when a task matches
~266

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 126 words (~266 tokens).

“Document the codebase as it exists today.”

— opening of SKILL.md by greenfield-inc, Custom licence
name
codebase-explorer

Read the full SKILL.md on GitHub

Files

Just SKILL.md in main/src/services/paneChatBundle/skills/codebase-explorer of greenfield-inc/Pane.

Open the folder on GitHubat commit b08541d

Compare with similar skills

Codebase 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.

Codebase Explorer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codebase Explorer this skillgreenfield-inc/Pane519—~266Automated safety check: PassCustom licence
Observe Traceruvnet/ruflo74k—~522Automated safety check: NotesMIT
Logic Locatesickn33/agentic-awesome-skills47k1 repos~977Automated safety check: PassMIT
Agent Scout Explorerruvnet/ruflo74k3 repos~1.6kAutomated safety check: PassMIT
Exploring LLM TracesPostHog/posthog-foss721—~4.4kAutomated safety check: PassMIT
Caveman Repository ExplorerJuliusBrussee/caveman110k1 repos~492Automated safety check: PassApache-2.0

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  • Observe Trace

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  • Logic Locate

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Questions about Codebase Explorer

What does Codebase Explorer do?

Explore the codebase to locate files, trace behavior, and document existing patterns with precise file references. Codebase Explorer is an agent skill from greenfield-inc/Pane. Explore the codebase to locate files, trace behavior, and document existing patterns with precise file references.

When should I use Codebase Explorer?

Codebase Explorer fits situations like: the task is understanding what exists; not proposing changes.

How do I install Codebase Explorer in Claude Code?

Run `npx skills add greenfield-inc/Pane --skill codebase-explorer -a claude-code`. Or copy the skill folder (main/src/services/paneChatBundle/skills/codebase-explorer in greenfield-inc/Pane) into .claude/skills/codebase-explorer in your project. Claude Code loads it when a task matches its description.

How do I install Codebase Explorer in Codex?

Run `npx skills add greenfield-inc/Pane --skill codebase-explorer -a codex`. Or copy the skill folder (main/src/services/paneChatBundle/skills/codebase-explorer in greenfield-inc/Pane) into .agents/skills/codebase-explorer in your project. Codex loads it when a task matches its description.

Can I use Codebase 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 greenfield-inc/Pane --skill codebase-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/codebase-explorer, .gemini/skills/codebase-explorer, .github/skills/codebase-explorer and .opencode/skills/codebase-explorer in your project.

What does Codebase Explorer need to run?

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

Does Codebase 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 Codebase 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 Codebase Explorer use?

Codebase Explorer 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 Codebase Explorer use?

About 266 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 Codebase Explorer?

Skills that share tags, products or a category with Codebase Explorer: Observe Trace (ruvnet/ruflo, 74k stars), Logic Locate (sickn33/agentic-awesome-skills, 47k stars), Agent Scout Explorer (ruvnet/ruflo, 74k stars) and Exploring LLM Traces (PostHog/posthog-foss, 721 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codebase Explorer?

greenfield-inc (a GitHub organization) maintains it in greenfield-inc/Pane, which has 519 GitHub stars. The repository holds 35 skills in this directory. The repository was last updated on October 7, 2026.

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