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Agent skill

Research Codebase

by shopsys in shopsys/shopsys

Conducts comprehensive research across this Shopsys project using parallel specialized subagents, then writes a self-contained research document.

Custom licenceAuto-check passedDevelopment

Install Research Codebase

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

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

GitHub CLI
$ gh skill install shopsys/shopsys research-codebase --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/research-codebase .claude/skills/research-codebase && 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
research-codebase
GitHub stars
350
Token cost
~2.8k tokens
SKILL.md length
1,221 words
Files
1
Skills in repo
38
Repo updated
First seen
Licence
Custom licence

At a glance

Conducts comprehensive research across this Shopsys project using parallel specialized subagents, then writes a self-contained research document.

  • Works in 7 steps: Read any directly mentioned files first → Analyze and decompose the research… → Spawn parallel sub-agent tasks for… → …
  • Tasks that involve Subagents
  • SKILL.md covers Initial Setup:, Steps to follow after… and Important notes:
  • Calls git

What it does

Research Codebase is an agent skill from shopsys/shopsys. Conducts comprehensive research across this Shopsys project using parallel specialized subagents, then writes a self-contained research document.

Its SKILL.md is about 2.8k 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 Subagents. The repository describes itself as: Main repository for maintaining Shopsys Platform packages. Open for ISSUES and PULL REQUESTS.

When your agent uses it

  • Tasks that involve Subagents

Example prompts

  • “Use the research-codebase skill to conduct comprehensive research across this Shopsys project using parallel specialized subagents, then writes a…”
  • “/research-codebase”

Workflow steps

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

  1. Read any directly mentioned files first
  2. Analyze and decompose the research question
  3. Spawn parallel sub-agent tasks for comprehensive research
  4. Wait for all sub-agents to complete and synthesize findings
  5. Gather metadata for the research document
  6. Generate research document
  7. Present findings to user

What it can do on your machine

Read from SKILL.md and the folder at commit 3c4bf38. 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:

    • git

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • docs.shopsys.com

    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

Research Codebase loads about 2.8k tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 1,221 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~41
When it runs · the whole SKILL.md, loaded when a task matches
~2.8k

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 1,221 words (~2,804 tokens).

“You are tasked with conducting comprehensive research across this Shopsys project to answer user questions by spawning parallel sub-agents and synthesizing their findings.”

— opening of SKILL.md by shopsys, Custom licence
name
research-codebase

Read the full SKILL.md on GitHub

Files

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

Open the folder on GitHubat commit 3c4bf38

Compare with similar skills

Research Codebase 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.

Research Codebase compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Research Codebase this skillshopsys/shopsys350—~2.8kAutomated safety check: PassCustom licence
GitHub Review Iterationprisma/orm48k—~2.2kAutomated safety check: PassApache-2.0
Cherry Studio PR ReviewCherryHQ/cherry-studio52k—~3.9kAutomated safety check: PassAGPL-3.0
Jevgrepdzhng/jevgrep2.4k—~741Automated safety check: PassMIT
PR Cyclejaemk/cached2.1k—~4.8kAutomated safety check: NotesMIT
Inference Format Optimizera2ui-project/a2ui17k—~985Automated safety check: PassApache-2.0

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More from shopsys/shopsys

All 38 skills in this repo

  • Adhoc PR

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  • Commit

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    350 GitHub stars~771 tokensUpdated today
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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

    shopsys/shopsys

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

    350 GitHub stars~1.5k tokensUpdated today
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  • PR Comments

    shopsys/shopsys

    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

    shopsys/shopsys

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

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Categories

Questions about Research Codebase

What does Research Codebase do?

Conducts comprehensive research across this Shopsys project using parallel specialized subagents, then writes a self-contained research document. Research Codebase is an agent skill from shopsys/shopsys. Conducts comprehensive research across this Shopsys project using parallel specialized subagents, then writes a self-contained research document.

When should I use Research Codebase?

Research Codebase fits situations like: tasks that involve Subagents.

How do I install Research Codebase in Claude Code?

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

How do I install Research Codebase in Codex?

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

Can I use Research Codebase 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 research-codebase -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/research-codebase, .gemini/skills/research-codebase, .github/skills/research-codebase and .opencode/skills/research-codebase in your project.

What does Research Codebase need to run?

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

Does Research Codebase access the network?

SKILL.md names 1 domain. As links in the text: docs.shopsys.com. This is read from the text; nothing was executed.

Is Research Codebase 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 Research Codebase use?

Research Codebase 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 Research Codebase use?

About 2.8k tokens (SKILL.md is roughly 11k 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 Research Codebase?

Skills that share tags, products or a category with Research Codebase: GitHub Review Iteration (prisma/orm, 48k stars), Cherry Studio PR Review (CherryHQ/cherry-studio, 52k stars), Jevgrep (dzhng/jevgrep, 2.4k stars) and PR Cycle (jaemk/cached, 2.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Research Codebase?

shopsys (a GitHub organization) maintains it in shopsys/shopsys, which has 350 GitHub stars. The repository holds 38 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.