Agent skill

Codebase Pattern Finder

by shopsys in shopsys/shopsys

Finds similar implementations, usage examples, and established patterns in this Shopsys project that you can model new work after.

Custom licenceAuto-check passedDevelopment

Install Codebase Pattern Finder

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

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

GitHub CLI
$ gh skill install shopsys/shopsys codebase-pattern-finder --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/project-base/.agents/skills/codebase-pattern-finder .claude/skills/codebase-pattern-finder && 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-pattern-finder
GitHub stars
350
Token cost
~3.6k tokens
SKILL.md length
935 words
Files
1
Skills in repo
46
Repo updated
First seen
Licence
Custom licence

At a glance

Finds similar implementations, usage examples, and established patterns in this Shopsys project that you can model new work after.

  • Works in 3 steps: Identify pattern types → Search → Read and extract
  • Development work in your project
  • SKILL.md covers What this repository is (for…, Core responsibilities, Search strategy and Output format, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Codebase Pattern Finder is an agent skill from shopsys/shopsys. Finds similar implementations, usage examples, and established patterns in this Shopsys project that you can model new work after. Like codebase-locator, but it also returns concrete code snippets with file:line references, not just locations.

Its SKILL.md is about 3.6k 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-pattern-finder skill to find similar implementations, usage examples, and established patterns in this Shopsys project that you can…”
  • “/codebase-pattern-finder”

Workflow steps

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

  1. Identify pattern types
  2. Search
  3. Read and extract

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 (its code samples are php and typescript).

    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 Pattern Finder loads about 3.6k tokens when it runs. Until then it costs about 67 tokens; SKILL.md has 935 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~67
When it runs · the whole SKILL.md, loaded when a task matches
~3.6k

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 935 words (~3,561 tokens).

“You are a specialist at finding code patterns and examples in this Shopsys project. Your job is to locate similar implementations that can serve as templates or inspiration for new work — and to show the actual code.”

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

Read the full SKILL.md on GitHub

Files

Just SKILL.md in project-base/.agents/skills/codebase-pattern-finder of shopsys/shopsys.

Open the folder on GitHubat commit 494a8a6

Compare with similar skills

Codebase Pattern Finder 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 Pattern Finder compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codebase Pattern Finder this skillshopsys/shopsys350—~3.6kAutomated 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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All 46 skills in this repo
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  • Create Enum

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    Create a Shopsys-style enum (a class extending AbstractEnum with public typed constants, NOT a native PHP enum).

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  • Docs Researcher

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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.

    350 GitHub stars~2k tokensUpdated today
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  • PR Description

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    Generates a PR description focused on business value using the project's PR template.

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Categories

Questions about Codebase Pattern Finder

What does Codebase Pattern Finder do?

Finds similar implementations, usage examples, and established patterns in this Shopsys project that you can model new work after. Codebase Pattern Finder is an agent skill from shopsys/shopsys. Finds similar implementations, usage examples, and established patterns in this Shopsys project that you can model new work after.

When should I use Codebase Pattern Finder?

Codebase Pattern Finder fits situations like: development work in your project.

How do I install Codebase Pattern Finder in Claude Code?

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

How do I install Codebase Pattern Finder in Codex?

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

Can I use Codebase Pattern Finder 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-pattern-finder -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-pattern-finder, .gemini/skills/codebase-pattern-finder, .github/skills/codebase-pattern-finder and .opencode/skills/codebase-pattern-finder in your project.

What does Codebase Pattern Finder need to run?

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

Does Codebase Pattern Finder 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 Pattern Finder 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 Pattern Finder use?

Codebase Pattern Finder 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 Pattern Finder use?

About 3.6k tokens (SKILL.md is roughly 14k 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 Pattern Finder?

Skills that share tags, products or a category with Codebase Pattern Finder: 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 Pattern Finder?

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.