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Agent skill

Codebase Analyzer

by shopsys in shopsys/shopsys

Analyzes codebase implementation details. An agent skill from shopsys/shopsys.

Custom licenceAuto-check passedDevelopment

Install Codebase Analyzer

skills CLI
$ npx skills add shopsys/shopsys --skill codebase-analyzer -a claude-code

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

GitHub CLI
$ gh skill install shopsys/shopsys codebase-analyzer --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/shopsys/shopsys.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/codebase-analyzer .claude/skills/codebase-analyzer && 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-analyzer
GitHub stars
350
Token cost
~255 tokens
SKILL.md length
80 words
Files
1
Skills in repo
46
Repo updated
First seen
Licence
Custom licence

At a glance

Analyzes codebase implementation details. An agent skill from shopsys/shopsys.

  • Development work in your project
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Codebase Analyzer is an agent skill from shopsys/shopsys. Analyzes codebase implementation details. Call the codebase-analyzer agent when you need to find detailed information about specific components. As always, the more detailed your request prompt, the better! :)

Its SKILL.md is about 260 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. The repository describes itself as: Main repository for maintaining Shopsys Platform packages. Open for ISSUES and PULL REQUESTS.

When your agent uses it

  • Development work in your project

Example prompts

  • “Use the codebase-analyzer skill to analyz codebase implementation details. An agent skill from shopsys/shopsys”
  • “/codebase-analyzer”

What it can do on your machine

Read from SKILL.md and the folder at commit 494a8a6. 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 Analyzer loads about 255 tokens when it runs. Until then it costs about 57 tokens; SKILL.md has 80 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~57
When it runs · the whole SKILL.md, loaded when a task matches
~255

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 80 words (~255 tokens).

“The canonical instructions for this skill are authored from the project perspective. Read them first:”

— opening of SKILL.md by shopsys, Custom licence
name
codebase-analyzer
tools
Read, Grep, Glob, LS

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/codebase-analyzer of shopsys/shopsys.

Open the folder on GitHubat commit 494a8a6

Compare with similar skills

Codebase Analyzer 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 Analyzer compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codebase Analyzer this skillshopsys/shopsys350—~255Automated safety check: PassCustom licence
Finishing a Development Branchobra/superpowers296k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k24 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
Greplooponyx-dot-app/onyx32k4 repos~3.3kAutomated safety check: PassMIT

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  • Docs Researcher

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    Searches and analyzes documentation to provide relevant information for development tasks.

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  • PR Comments

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    Work with GitHub PR review threads — list unresolved comments as a digest (who is waiting on whom), reply to threads, and resolve/unresolve them.

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  • PR Description

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Categories

Questions about Codebase Analyzer

What does Codebase Analyzer do?

Analyzes codebase implementation details. An agent skill from shopsys/shopsys. Codebase Analyzer is an agent skill from shopsys/shopsys. Analyzes codebase implementation details.

When should I use Codebase Analyzer?

Codebase Analyzer fits situations like: development work in your project.

How do I install Codebase Analyzer in Claude Code?

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

How do I install Codebase Analyzer in Codex?

Run `npx skills add shopsys/shopsys --skill codebase-analyzer -a codex`. Or copy the skill folder (.agents/skills/codebase-analyzer in shopsys/shopsys) into .agents/skills/codebase-analyzer in your project. Codex loads it when a task matches its description.

Can I use Codebase Analyzer 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 shopsys/shopsys --skill codebase-analyzer -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-analyzer, .gemini/skills/codebase-analyzer, .github/skills/codebase-analyzer and .opencode/skills/codebase-analyzer in your project.

What does Codebase Analyzer need to run?

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

Does Codebase Analyzer 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 Analyzer 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 Analyzer use?

Codebase Analyzer 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 Analyzer use?

About 255 tokens (SKILL.md is roughly 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 Analyzer?

Skills that share tags, products or a category with Codebase Analyzer: Finishing a Development Branch (obra/superpowers, 296k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars), PR Babysitter (openinterpreter/openinterpreter, 69k stars) and Code Review Checklist (shareAI-lab/learn-claude-code, 78k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codebase Analyzer?

shopsys (a GitHub organization) maintains it in shopsys/shopsys, which has 350 GitHub stars. The repository holds 46 skills in this directory. The repository was last updated on October 7, 2026.

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