Scaffold a new gz-sim system plugin under src/systems/<name/ — header, source, CMake glue, plugin registration, and an integration test stub.

No licenceAuto-check passedTesting & QA

Install New System

skills CLI
$ npx skills add harunkurtdev/ros2-claude-code-template --skill new-system -a claude-code

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

GitHub CLI
$ gh skill install harunkurtdev/ros2-claude-code-template new-system --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/harunkurtdev/ros2-claude-code-template.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/new-system .claude/skills/new-system && 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
new-system
GitHub stars
215
Token cost
~1.4k tokens
SKILL.md length
203 words
Files
1
Skills in repo
5
Repo updated
First seen
Licence
None found

At a glance

Scaffold a new gz-sim system plugin under src/systems/<name/ — header, source, CMake glue, plugin registration, and an integration test stub.

  • Works in 8 steps: pick the directory + filename → header template (FancyDrive.hh) → source template (FancyDrive.cc) → …
  • The user asks to create a new system
  • SKILL.md covers Step 1 — pick the directory +…, Step 2 — header template…, Step 3 — source template… and Step 4 — local CMake…, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

New System is an agent skill from harunkurtdev/ros2-claude-code-template. Scaffold a new gz-sim system plugin under src/systems/<name/ — header, source, CMake glue, plugin registration, and an integration test stub. Trigger when the user asks to create a new system, controller, or plugin that hooks into the simulation loop.

Its SKILL.md is about 1.4k 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 Testing & QA, covering Integration testing. It works with C++.

When your agent uses it

  • The user asks to create a new system
  • Plugin that hooks into the simulation loop

Example prompts

  • “/new-system”

Workflow steps

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

  1. pick the directory + filename
  2. header template (FancyDrive.hh)
  3. source template (FancyDrive.cc)
  4. local CMake (src/systems/fancy_drive/CMakeLists.txt)
  5. register with parent CMake (src/systems/CMakeLists.txt)
  6. integration test (test/integration/fancy_drive_system.cc)
  7. example world
  8. Migration.md

What it can do on your machine

Read from SKILL.md and the folder at commit 5b3a43d. 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 cpp and cmake).

    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

New System loads about 1.4k tokens when it runs. Until then it costs about 66 tokens; SKILL.md has 203 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~66
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 203 words (~1,392 tokens).

“A system in gz-sim is a shared library that implements one or more of ISystemConfigure, ISystemPreUpdate, ISystemUpdate, ISystemPostUpdate, ISystemReset and gets loaded via SDF or .”

— opening of SKILL.md by harunkurtdev
name
new-system

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/new-system of harunkurtdev/ros2-claude-code-template.

Open the folder on GitHubat commit 5b3a43d

Compare with similar skills

New System 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.

New System compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
New System this skillharunkurtdev/ros2-claude-code-template215—~1.4kAutomated safety check: PassNone
OpenROAD Module Test AdderThe-OpenROAD-Project/OpenROAD3.2k—~1.8kAutomated safety check: PassBSD-3-Clause
Run Integration Testsvalkey-io/valkey-search145—~511Automated safety check: PassBSD-3-Clause
Qv Nx CItetherto/qvac674—~1.8kAutomated safety check: PassApache-2.0
Test Case ReducerArabelaTso/Skills-4-SE253—~2.5kAutomated safety check: PassApache-2.0
Fory Version Bumpapache/fory4.6k—~1.1kAutomated safety check: PassApache-2.0

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  • OpenROAD Module Test Adder

    The-OpenROAD-Project/OpenROAD

    Adds integration or unit tests to an OpenROAD module: writes the Tcl test, generates golden files and registers it in both CMake and Bazel.

    3.2k GitHub stars~1.8k tokensUpdated yesterday
    Testing & QAAuto-check passed
  • Run Integration Tests

    valkey-io/valkey-search

    Run or troubleshoot Valkey Search C++ and Python integration tests, including focused development runs, full-suite verification, and packaging/build or runtime failure classification.

    145 GitHub stars~511 tokensUpdated today
    Testing & QAAuto-check passed
  • Qv Nx CI

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    Understand and modify the pnpm+Nx consolidated CI — the generic -nx.yml leaves driven by each package's project.json options.ci.

    674 GitHub stars~1.8k tokensUpdated today
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  • Test Case Reducer

    ArabelaTso/Skills-4-SE

    Automatically reduces bug-triggering test cases to minimal form while preserving the failure.

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More from harunkurtdev/ros2-claude-code-template

  • Gz Build

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    Configure and build gz-sim from source using either CMake/Ninja directly or a colcon workspace.

    215 GitHub stars~641 tokensUpdated 4 mo ago
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  • Gz Ecs Overview

    harunkurtdev/ros2-claude-code-template

    Concise reference for the gz-sim Entity-Component-System architecture — how Entities, Components, Systems, the ECM, the Server, and SimulationRunner fit together.

    215 GitHub stars~1.2k tokensUpdated 4 mo ago
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  • Gz Test

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    Run unit, integration, performance, and benchmark tests for gz-sim, filter by name, and debug a single failing case.

    215 GitHub stars~675 tokensUpdated 4 mo ago
    Auto-check passed
  • New Component

    harunkurtdev/ros2-claude-code-template

    Scaffold a new ECS component header under include/gz/sim/components/, wire its CMake listing, and (if needed) register it with ComponentFactory for serialization.

    215 GitHub stars~962 tokensUpdated 4 mo ago
    Auto-check passed

Works with

Categories

Questions about New System

What does New System do?

Scaffold a new gz-sim system plugin under src/systems/<name/ — header, source, CMake glue, plugin registration, and an integration test stub. New System is an agent skill from harunkurtdev/ros2-claude-code-template. Scaffold a new gz-sim system plugin under src/systems/<name/ — header, source, CMake glue, plugin registration, and an integration test stub.

When should I use New System?

New System fits situations like: the user asks to create a new system; plugin that hooks into the simulation loop.

How do I install New System in Claude Code?

Run `npx skills add harunkurtdev/ros2-claude-code-template --skill new-system -a claude-code`. Or copy the skill folder (.claude/skills/new-system in harunkurtdev/ros2-claude-code-template) into .claude/skills/new-system in your project. Claude Code loads it when a task matches its description.

How do I install New System in Codex?

Run `npx skills add harunkurtdev/ros2-claude-code-template --skill new-system -a codex`. Or copy the skill folder (.claude/skills/new-system in harunkurtdev/ros2-claude-code-template) into .agents/skills/new-system in your project. Codex loads it when a task matches its description.

Can I use New System 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 harunkurtdev/ros2-claude-code-template --skill new-system -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/new-system, .gemini/skills/new-system, .github/skills/new-system and .opencode/skills/new-system in your project.

What does New System need to run?

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

Does New System 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 New System 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 New System use?

No licence was found for New System or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does New System use?

About 1.4k tokens (SKILL.md is roughly 5.6k 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 New System?

Skills that share tags, products or a category with New System: OpenROAD Module Test Adder (The-OpenROAD-Project/OpenROAD, 3.2k stars), Run Integration Tests (valkey-io/valkey-search, 145 stars), Qv Nx CI (tetherto/qvac, 674 stars) and Test Case Reducer (ArabelaTso/Skills-4-SE, 253 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains New System?

harunkurtdev (a GitHub user) maintains it in harunkurtdev/ros2-claude-code-template, which has 215 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on June 8, 2026.

Source: harunkurtdev/ros2-claude-code-template on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.