A2A JSON RPC Call

Organization

ai-sns

A2A JSON-RPC Call

Call a peer agent's A2A JSON-RPC endpoint. Supports tasks/send (send a task message) and tasks/get (query task status).

Overview

Publisher	ai-sns
Repository	`ai-sns`
Skill name	`A2A JSON-RPC Call`
Stars	333
Forks	10
Bundled files	1
License	MIT
Links	Skill source Repository Homepage

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
1 bundled files
Scripts, templates, and references the model can read while it works. Files are read-only and never executed.
Open source
Published by ai-sns on GitHub. Read the source before you install it.

Installation

Install the A2A JSON RPC Call AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/ai-sns/ai-sns/tree/master/aisns_backend/skills/skill_a2a_call
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/ai-sns/ai-sns.git /tmp/ai-sns
mkdir -p .claude/skills
cp -r /tmp/ai-sns/aisns_backend/skills/skill_a2a_call .claude/skills/ai-sns-a2a-json-rpc-call

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable A2A JSON RPC Call in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads A2A JSON RPC Call on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so A2A JSON RPC Call is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

This skill invokes A2A JSON-RPC methods on a remote agent endpoint.

Input parameters (via stdin JSON):

url (string, required): The peer's A2A JSON-RPC endpoint URL.
method (string, required): "tasks/send" or "tasks/get".
task_id (string, optional): Required for tasks/get. The task ID to query.
message_text (string, optional): For tasks/send — a text message to include.
message_data (object, optional): For tasks/send — a data payload to include.
skill_id (string, optional): For tasks/send — the target skill ID on the peer agent.
metadata (object, optional): Extra metadata to attach to the request.

Output (stdout JSON):

ok (bool): Whether the call succeeded.
result (object): The JSON-RPC result on success.
error (string): Error message on failure.

Bundled files

The model reads these on demand while the skill is loaded. They are exposed as readable files and are never executed.

a2a_call.py5 KB

Frequently asked questions

What does the A2A JSON RPC Call AI skill do?

Call a peer agent's A2A JSON-RPC endpoint. Supports tasks/send (send a task message) and tasks/get (query task status).

Why use A2A JSON RPC Call on TypingMind?

Because you install it once and use it with any model. A2A JSON RPC Call is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install A2A JSON RPC Call in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/ai-sns/ai-sns/tree/master/aisns_backend/skills/skill_a2a_call. TypingMind reads its SKILL.md and bundles its files and installs it as a skill you can enable per chat.

Which AI models can use A2A JSON RPC Call?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with A2A JSON RPC Call?

As many as you like. As long as a model supports skills, you can use A2A JSON RPC Call with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the A2A JSON RPC Call AI skill free?

Yes. It is published on GitHub by ai-sns under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

View all

Browser Extract

ruvnet

CommunityPopular

Extract structured data via stored browser-templates or one-shot DOM queries, with mandatory AIDefence PII + prompt-injection gates before content reaches the model

Browser Record

Open a named, traced browser session into an RVF cognitive container with a ruvector trajectory recording every action

Init Project

Initialize a new Ruflo project with MCP tools, hooks, and agent configuration. Use when setting up Ruflo in a fresh repo, or when the user says "init ruflo", "set up ruflo", or asks how to bootstrap…

Cherry Assistant Guide

CherryHQ

OrganizationPopular

从当前安装包查询 Cherry Studio 产品信息并排查运行问题。当用户询问功能、路由、快捷键、Provider、语言、Agent、频道、定时任务、Code CLI、当前版本，或报告运行错误、连接失败、配置异常并需要诊断时触发。

Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Bundled files

Frequently asked questions

Related AI Skills

Set up your own AI workspace now