Agent skill

Erpc Communication

Guides using eRPC (electron-tRPC) for inter-process communication (IPC) between Electron main and renderer processes.

Install Erpc Communication

skills CLI

$ npx skills add MatrixAges/polywise --skill erpc-communication -a claude-code

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

GitHub CLI

$ gh skill install MatrixAges/polywise erpc-communication --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/MatrixAges/polywise.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.opencode/skills/erpc .claude/skills/erpc-communication && 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 "erpc-communication" agent skill from https://github.com/MatrixAges/polywise/tree/master/.opencode/skills/erpc into .claude/skills/erpc-communication/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erpc-communication", 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/MatrixAges/polywise/tree/master/.opencode/skills/erpc

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 MatrixAges/polywise --skill erpc-communication -a codex

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

GitHub CLI

$ gh skill install MatrixAges/polywise erpc-communication --agent codex

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

Manual copy

$ git clone --depth 1 https://github.com/MatrixAges/polywise.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.opencode/skills/erpc .agents/skills/erpc-communication && 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 "erpc-communication" agent skill from https://github.com/MatrixAges/polywise/tree/master/.opencode/skills/erpc into .agents/skills/erpc-communication/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erpc-communication", 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 MatrixAges/polywise --skill erpc-communication -a cursor

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

GitHub CLI

$ gh skill install MatrixAges/polywise erpc-communication --agent cursor

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

Manual copy

$ git clone --depth 1 https://github.com/MatrixAges/polywise.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.opencode/skills/erpc .cursor/skills/erpc-communication && 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 "erpc-communication" agent skill from https://github.com/MatrixAges/polywise/tree/master/.opencode/skills/erpc into .cursor/skills/erpc-communication/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erpc-communication", 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/MatrixAges/polywise.git --path .opencode/skills/erpc

--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 MatrixAges/polywise --skill erpc-communication -a gemini-cli

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

GitHub CLI

$ gh skill install MatrixAges/polywise erpc-communication --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/MatrixAges/polywise.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.opencode/skills/erpc .gemini/skills/erpc-communication && 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 "erpc-communication" agent skill from https://github.com/MatrixAges/polywise/tree/master/.opencode/skills/erpc into .gemini/skills/erpc-communication/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erpc-communication", 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 MatrixAges/polywise erpc-communication

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 MatrixAges/polywise --skill erpc-communication -a github-copilot

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

Manual copy

$ git clone --depth 1 https://github.com/MatrixAges/polywise.git skills-src && mkdir -p .github/skills && cp -r skills-src/.opencode/skills/erpc .github/skills/erpc-communication && 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 "erpc-communication" agent skill from https://github.com/MatrixAges/polywise/tree/master/.opencode/skills/erpc into .github/skills/erpc-communication/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erpc-communication", 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 MatrixAges/polywise --skill erpc-communication -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 MatrixAges/polywise erpc-communication --agent opencode

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

Manual copy

$ git clone --depth 1 https://github.com/MatrixAges/polywise.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.opencode/skills/erpc .opencode/skills/erpc-communication && 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 "erpc-communication" agent skill from https://github.com/MatrixAges/polywise/tree/master/.opencode/skills/erpc into .opencode/skills/erpc-communication/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "erpc-communication", 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: erpc-communication
GitHub stars: 662
Token cost: ~618 tokens
SKILL.md length: 195 words
Files: 1
Skills in repo: 11
Repo updated: Jun 11, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Guides using eRPC (electron-tRPC) for inter-process communication (IPC) between Electron main and renderer processes.

Works in 4 steps: Main Process Implementation → Preload Script Configuration → Renderer Process Usage → …
Tasks that involve gRPC and Protobuf
SKILL.md covers 1. Main Process Implementation, 2. Preload Script Configuration, 3. Renderer Process Usage and 4. Routes and Endpoints Best…
Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Erpc Communication is an agent skill from MatrixAges/polywise. Guides using eRPC (electron-tRPC) for inter-process communication (IPC) between Electron main and renderer processes. Triggered when handling Electron IPC or tRPC-based systems.

Its SKILL.md is about 620 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 tRPC. The repository describes itself as: The open source agentic content system to make your contents alive. Self-hosted on any platform. ◑. The licence is MIT.

When your agent uses it

Tasks that involve gRPC and Protobuf

Example prompts

“Use the erpc-communication skill to guide using eRPC (electron-tRPC) for inter-process communication (IPC) between Electron main and renderer…”
“/erpc-communication”

Workflow steps

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

Main Process Implementation
Preload Script Configuration
Renderer Process Usage
Routes and Endpoints Best Practices

What it can do on your machine

Read from SKILL.md and the folder at commit f8d2320. 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 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

Erpc Communication loads about 618 tokens when it runs. Until then it costs about 49 tokens; SKILL.md has 195 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~49
When it runs · the whole SKILL.md, loaded when a task matches: ~618

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 MatrixAges/polywise at commit f8d2320, republished under its MIT licence (© MatrixAges). 195 words, ~618 tokens.

Download SKILL.mdSave it as .claude/skills/erpc-communication/SKILL.md (or your agent's skills folder).

name: erpc-communication
description: Guides using eRPC (electron-tRPC) for inter-process communication (IPC) between Electron main and renderer processes. Triggered when handling Electron IPC or tRPC-based systems.

eRPC Communication Guide

This skill provides mandatory instructions for implementing type-safe IPC using eRPC in this project.

1. Main Process Implementation

Route Definition: Must use the project's provided router utility to define tRPC routes.
Handler Initialization: Must use createIPCHandler from erpc/main to bind the router to Electron windows.
Context Injection: Should provide necessary instances (e.g., BrowserWindow or Tray) through createContext.

typescript

// Always initialize createIPCHandler within the app ready lifecycle
import { createIPCHandler } from 'erpc/main'

import { routers } from './rpcs'

createIPCHandler({
	createContext: async () => ({ win: mainWindow, tray: appTray }),
	router: routers,
	windows: [mainWindow]
})

2. Preload Script Configuration

Expose Bridge Interface: Must call exposeElectronTRPC() provided by erpc/main in the preload script.
Lifecycle: Should be called inside process.once('loaded').

typescript

import { exposeElectronTRPC } from 'erpc/main'

process.once('loaded', () => {
	exposeElectronTRPC()
})

3. Renderer Process Usage

Client Creation: Create tRPC client using ipcLink from erpc/renderer.
Type Safety: Always import Router type from main process to ensure complete end-to-end type safety.

typescript

import { createTRPCClient } from '@trpc/client'
import { ipcLink } from 'erpc/renderer'

import type { Router } from '@desktop/rpcs' // Import Router type from main process

export const trpc = createTRPCClient<Router>({
	links: [ipcLink()]
})

4. Routes and Endpoints Best Practices

Single Responsibility: Each route should correspond to a specific service in the main process (e.g., window, file, dialog).
Parameter Validation: It is strictly prohibited to write complex business logic in Router. Router is only responsible for validating input and output parameters; business logic must be delegated to Service (e.g., calling WindowService.open()).
Type Reference: For complex object parameters, type definitions must be placed under the packages/erpc package and shared between both ends, avoiding direct cross-package imports of entity logic.

Files

Just SKILL.md in .opencode/skills/erpc of MatrixAges/polywise.

Open the folder on GitHubat commit f8d2320

Compare with similar skills

Erpc Communication 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.

Erpc Communication compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Erpc Communication this skillMatrixAges/polywise	662	—	~618	Automated safety check: Pass	MIT	3 mo ago
Nestjs Trpctrycompai/crm	11k	—	~2.8k	Automated safety check: Pass	MIT	26 days ago
Backend Dev Guidelineslangfuse/langfuse	35k	—	~1.9k	Automated safety check: Pass	Custom licence	today
Trpc PatternsFranciscoMoretti/chat-js	1.2k	—	~288	Automated safety check: Pass	Apache-2.0	today
Backend Dev Guidelineslitefuse/litefuse	100	1 repos	~5.8k	Automated safety check: Pass	Custom licence	14 days ago
TrpcPrairieLearn/PrairieLearn	512	—	~2k	Automated safety check: Pass	Custom licence	today

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Questions about Erpc Communication

What does Erpc Communication do?

Guides using eRPC (electron-tRPC) for inter-process communication (IPC) between Electron main and renderer processes. Erpc Communication is an agent skill from MatrixAges/polywise. Guides using eRPC (electron-tRPC) for inter-process communication (IPC) between Electron main and renderer processes.

When should I use Erpc Communication?

Erpc Communication fits situations like: tasks that involve gRPC and Protobuf.

How do I install Erpc Communication in Claude Code?

Run `npx skills add MatrixAges/polywise --skill erpc-communication -a claude-code`. Or copy the skill folder (.opencode/skills/erpc in MatrixAges/polywise) into .claude/skills/erpc-communication in your project. Claude Code loads it when a task matches its description.

How do I install Erpc Communication in Codex?

Run `npx skills add MatrixAges/polywise --skill erpc-communication -a codex`. Or copy the skill folder (.opencode/skills/erpc in MatrixAges/polywise) into .agents/skills/erpc-communication in your project. Codex loads it when a task matches its description.

Can I use Erpc Communication 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 MatrixAges/polywise --skill erpc-communication -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/erpc-communication, .gemini/skills/erpc-communication, .github/skills/erpc-communication and .opencode/skills/erpc-communication in your project.

What does Erpc Communication need to run?

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

Does Erpc Communication 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 Erpc Communication 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 Erpc Communication use?

Erpc Communication 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 Erpc Communication use?

About 618 tokens (SKILL.md is roughly 2.5k 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 Erpc Communication?

Skills that share tags, products or a category with Erpc Communication: Nestjs Trpc (trycompai/crm, 11k stars), Backend Dev Guidelines (langfuse/langfuse, 35k stars), Trpc Patterns (FranciscoMoretti/chat-js, 1.2k stars) and Backend Dev Guidelines (litefuse/litefuse, 100 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Erpc Communication?

MatrixAges (a GitHub organization) maintains it in MatrixAges/polywise, which has 662 GitHub stars. The repository holds 11 skills in this directory. The repository was last updated on June 11, 2026.

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

Erpc Communication

Install Erpc Communication

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

eRPC Communication Guide

1. Main Process Implementation

2. Preload Script Configuration

3. Renderer Process Usage

4. Routes and Endpoints Best Practices

Files

Compare with similar skills

Similar skills

Nestjs Trpc

Backend Dev Guidelines

Trpc Patterns

Backend Dev Guidelines

Trpc

Lazy Prefetch Pattern

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Questions about Erpc Communication

Install Erpc Communication

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

eRPC Communication Guide

1. Main Process Implementation

2. Preload Script Configuration

3. Renderer Process Usage

4. Routes and Endpoints Best Practices

Files

Compare with similar skills

Similar skills

More from MatrixAges/polywise

Related

Questions about Erpc Communication