Agent skill

Add Protobuf Message

Add a new protobuf message type for CLOiSim transport. An agent skill from lge-ros2/cloisim.

Install Add Protobuf Message

skills CLI

$ npx skills add lge-ros2/cloisim --skill add-protobuf-message -a claude-code

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

GitHub CLI

$ gh skill install lge-ros2/cloisim add-protobuf-message --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/lge-ros2/cloisim.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/add-protobuf-message .claude/skills/add-protobuf-message && 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/

Paste into Claude Code

Install the "add-protobuf-message" agent skill from https://github.com/lge-ros2/cloisim/tree/main/.github/skills/add-protobuf-message into .claude/skills/add-protobuf-message/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-protobuf-message", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/lge-ros2/cloisim/tree/main/.github/skills/add-protobuf-message

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add lge-ros2/cloisim --skill add-protobuf-message -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install lge-ros2/cloisim add-protobuf-message --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/lge-ros2/cloisim.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.github/skills/add-protobuf-message .agents/skills/add-protobuf-message && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "add-protobuf-message" agent skill from https://github.com/lge-ros2/cloisim/tree/main/.github/skills/add-protobuf-message into .agents/skills/add-protobuf-message/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-protobuf-message", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add lge-ros2/cloisim --skill add-protobuf-message -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install lge-ros2/cloisim add-protobuf-message --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/lge-ros2/cloisim.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.github/skills/add-protobuf-message .cursor/skills/add-protobuf-message && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "add-protobuf-message" agent skill from https://github.com/lge-ros2/cloisim/tree/main/.github/skills/add-protobuf-message into .cursor/skills/add-protobuf-message/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-protobuf-message", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/lge-ros2/cloisim.git --path .github/skills/add-protobuf-message

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add lge-ros2/cloisim --skill add-protobuf-message -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install lge-ros2/cloisim add-protobuf-message --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/lge-ros2/cloisim.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.github/skills/add-protobuf-message .gemini/skills/add-protobuf-message && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "add-protobuf-message" agent skill from https://github.com/lge-ros2/cloisim/tree/main/.github/skills/add-protobuf-message into .gemini/skills/add-protobuf-message/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-protobuf-message", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install lge-ros2/cloisim add-protobuf-message

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add lge-ros2/cloisim --skill add-protobuf-message -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/lge-ros2/cloisim.git skills-src && mkdir -p .github/skills && cp -r skills-src/.github/skills/add-protobuf-message .github/skills/add-protobuf-message && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "add-protobuf-message" agent skill from https://github.com/lge-ros2/cloisim/tree/main/.github/skills/add-protobuf-message into .github/skills/add-protobuf-message/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-protobuf-message", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add lge-ros2/cloisim --skill add-protobuf-message -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install lge-ros2/cloisim add-protobuf-message --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/lge-ros2/cloisim.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.github/skills/add-protobuf-message .opencode/skills/add-protobuf-message && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "add-protobuf-message" agent skill from https://github.com/lge-ros2/cloisim/tree/main/.github/skills/add-protobuf-message into .opencode/skills/add-protobuf-message/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "add-protobuf-message", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: add-protobuf-message
GitHub stars: 176
Token cost: ~965 tokens
SKILL.md length: 279 words
Files: 1
Skills in repo: 18
Repo updated: Oct 6, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Add a new protobuf message type for CLOiSim transport. An agent skill from lge-ros2/cloisim.

Works in 7 steps: Create the .proto Definition → Add to Generation Script → Run the Code Generator → …
: defining a new sensor data format
SKILL.md covers When to Use, Procedure and Checklist
Calls bash

What it does

Add Protobuf Message is an agent skill from lge-ros2/cloisim. Add a new protobuf message type for CLOiSim transport. Use when: defining a new sensor data format, adding a new command message, extending the transport protocol.

Its SKILL.md is about 970 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 Backend & APIs, covering gRPC and Protobuf. It works with gRPC. The repository describes itself as: Unity 6 based multi-robot simulator for ROS 2, SDFormat/SDF, LiDAR, camera, depth, IMU, GPS, and large-scale robotics simulation. The licence is MIT.

When your agent uses it

: defining a new sensor data format
Adding a new command message
Extending the transport protocol

Example prompts

“/add-protobuf-message”

Workflow steps

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

Create the .proto Definition
Add to Generation Script
Run the Code Generator
Verify the Generated Class
Use in Device Code
Add Fast Path (For High-Bandwidth Sensors)
Helper Extension Methods

What it can do on your machine

Read from SKILL.md and the folder at commit f4c1f0b. 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:
- bash
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

Add Protobuf Message loads about 965 tokens when it runs. Until then it costs about 46 tokens; SKILL.md has 279 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~46
When it runs · the whole SKILL.md, loaded when a task matches: ~965

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

The full file from lge-ros2/cloisim at commit f4c1f0b, republished under its MIT licence (© lge-ros2). 279 words, ~965 tokens.

Download SKILL.mdSave it as .claude/skills/add-protobuf-message/SKILL.md (or your agent's skills folder).

name: add-protobuf-message
description: Add a new protobuf message type for CLOiSim transport. Use when: defining a new sensor data format, adding a new command message, extending the transport protocol.

Add a New Protobuf Message

Procedure for adding a new protobuf message type to CLOiSim's NetMQ transport layer.

When to Use

A new sensor device needs a custom message format
An existing message type doesn't capture the required data
Extending the transport protocol for a new feature

Procedure

1. Create the .proto Definition

Add a .proto file to the external cloisim_ros_protobuf_msgs/msgs/ repository:

protobuf

syntax = "proto3";
package cloisim.msgs;

import "time.proto";
import "vector3d.proto";

message MyNewMessage {
  Time stamp = 1;
  string entity_name = 2;
  Vector3d value = 3;
  double scalar = 4;
  repeated double data_array = 5;
}

Convention rules:

Package: cloisim.msgs
Field naming: snake_case
Import shared types: time.proto, vector3d.proto, quaternion.proto, pose.proto, etc.
Use repeated for arrays

2. Add to Generation Script

Edit Assets/Scripts/CLOiSimPlugins/Messages/.gen_proto_code.sh:

Add the new message name to the MSG variable (space-delimited list):

bash

MSG="... existing_messages my_new_message"

3. Run the Code Generator

bash

cd Assets/Scripts/CLOiSimPlugins/Messages/
bash .gen_proto_code.sh

This runs protogen (protobuf-net code generator) and outputs C# classes into the Messages/ directory.

4. Verify the Generated Class

The generated file (MyNewMessage.cs) should contain:

csharp

namespace cloisim.msgs
{
    [ProtoContract]
    public partial class MyNewMessage
    {
        [ProtoMember(1)]
        public Time Stamp { get; set; }

        [ProtoMember(2)]
        public string EntityName { get; set; }

        // ... etc
    }
}

The class is partial — you can extend it in a separate file if needed.

5. Use in Device Code

csharp

using messages = cloisim.msgs;

// In InitializeMessages():
_msg = new messages.MyNewMessage();
_msg.Stamp = new messages.Time();
_msg.Value = new messages.Vector3d();
// Always allocate nested sub-messages explicitly

// In GenerateMessage():
_msg.Value.Set(someVector);
_msg.Scalar = someValue;
_msg.Stamp.Set(GetNextSyntheticTime());
PushDeviceMessage<messages.MyNewMessage>(_msg);

6. Add Fast Path (For High-Bandwidth Sensors)

If the message is used for high-bandwidth binary data (images, point clouds), add a fast path in Device.PushDeviceMessage<T>() to bypass protobuf serialization:

csharp

// In Device.cs PushDeviceMessage:
if (message is messages.MyNewMessage myMsg)
{
    deviceMessage.SetRawMyData(myMsg);  // Custom binary format
}

This is only needed for messages sent at high frequency where protobuf overhead matters. Most sensors use standard protobuf serialization.

7. Helper Extension Methods

Common message types have .Set() extension methods for Unity types:

csharp

// Vector3d.Set(UnityEngine.Vector3)
_msg.Value.Set(transform.position);

// Quaternion.Set(UnityEngine.Quaternion)
_msg.Orientation.Set(transform.rotation);

// Time.Set(double simulationTime)
_msg.Stamp.Set(GetNextSyntheticTime());

If your message uses existing sub-message types, these helpers are already available. For new sub-types, add extension methods in Messages/ following the existing pattern.

Checklist

.proto file created in external proto repository
Message name added to .gen_proto_code.sh MSG variable
Code generator run successfully
Generated C# class is in cloisim.msgs namespace
All nested sub-messages allocated explicitly in InitializeMessages()
Uses messages = cloisim.msgs namespace alias
Fast path added (only if high-bandwidth)

Files

Just SKILL.md in .github/skills/add-protobuf-message of lge-ros2/cloisim.

Open the folder on GitHubat commit f4c1f0b

Compare with similar skills

Add Protobuf Message 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.

Add Protobuf Message compared with similar skills
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Add Protobuf Message this skilllge-ros2/cloisim	176	—	~965	Automated safety check: Pass	MIT	4 days ago
Use Yaakmountain-loop/yaak	19k	—	~1.9k	Automated safety check: Pass	MIT	3 days ago
Golang Proantoniopaya22/go-rest-template	172	3 repos	~1.2k	Automated safety check: Pass	MIT	6 mo ago
Debug Grpc ConnectionGetBindu/Bindu	10k	—	~1.2k	Automated safety check: Pass	Custom licence	1 mo ago
Aspnet Corefanslead/ReverseProxy.Store	161	2 repos	~1.4k	Automated safety check: Pass	Apache-2.0	1 mo ago
Regenerate Grpc StubsGetBindu/Bindu	10k	—	~810	Automated safety check: Pass	Custom licence	1 mo ago

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Questions about Add Protobuf Message

What does Add Protobuf Message do?

Add a new protobuf message type for CLOiSim transport. An agent skill from lge-ros2/cloisim. Add Protobuf Message is an agent skill from lge-ros2/cloisim. Add a new protobuf message type for CLOiSim transport.

When should I use Add Protobuf Message?

Add Protobuf Message fits situations like: : defining a new sensor data format; adding a new command message; extending the transport protocol.

How do I install Add Protobuf Message in Claude Code?

Run `npx skills add lge-ros2/cloisim --skill add-protobuf-message -a claude-code`. Or copy the skill folder (.github/skills/add-protobuf-message in lge-ros2/cloisim) into .claude/skills/add-protobuf-message in your project. Claude Code loads it when a task matches its description.

How do I install Add Protobuf Message in Codex?

Run `npx skills add lge-ros2/cloisim --skill add-protobuf-message -a codex`. Or copy the skill folder (.github/skills/add-protobuf-message in lge-ros2/cloisim) into .agents/skills/add-protobuf-message in your project. Codex loads it when a task matches its description.

Can I use Add Protobuf Message 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 lge-ros2/cloisim --skill add-protobuf-message -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/add-protobuf-message, .gemini/skills/add-protobuf-message, .github/skills/add-protobuf-message and .opencode/skills/add-protobuf-message in your project.

What does Add Protobuf Message need to run?

Going by SKILL.md and its folder, Add Protobuf Message needs the command-line tools its instructions call (bash).

Does Add Protobuf Message 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 Add Protobuf Message 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 Add Protobuf Message use?

Add Protobuf Message is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Add Protobuf Message use?

About 965 tokens (SKILL.md is roughly 3.9k 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 Add Protobuf Message?

Skills that share tags, products or a category with Add Protobuf Message: Use Yaak (mountain-loop/yaak, 19k stars), Golang Pro (antoniopaya22/go-rest-template, 172 stars), Debug Grpc Connection (GetBindu/Bindu, 10k stars) and Aspnet Core (fanslead/ReverseProxy.Store, 161 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Add Protobuf Message?

lge-ros2 (a GitHub organization) maintains it in lge-ros2/cloisim, which has 176 GitHub stars. The repository holds 18 skills in this directory. The repository was last updated on October 6, 2026.

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

Install Add Protobuf Message

Facts

At a glance

What it does

When your agent uses it

Example prompts

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Add a New Protobuf Message

When to Use

Procedure

1. Create the .proto Definition

2. Add to Generation Script

3. Run the Code Generator

4. Verify the Generated Class

5. Use in Device Code

6. Add Fast Path (For High-Bandwidth Sensors)

7. Helper Extension Methods

Checklist

Files

Compare with similar skills

Similar skills

More from lge-ros2/cloisim

Related

Questions about Add Protobuf Message