Is the A2A Agent Card skill free?

Yes. The skill itself is free from OrcaQubits/agentic-commerce-skills-plugins. SkillProof publishes the install command and an independent test verdict at no cost.

What is the A2A Agent Card SkillProof Score?

9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.

How do I install A2A Agent Card?

Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.

Can I use A2A Agent Card with Cursor, Copilot, Gemini CLI, Codex or other AI tools?

The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.

A2A Agent Card

Builds a spec-correct A2A Agent Card JSON by fetching the live protocol schema first.

by OrcaQubits · OrcaQubits/agentic-commerce-skills-plugins

Tested · Works

Install — copy the command Download source ↗

Test report

Verdict: Tested · Works
Score: 9.6/10
Tested: Jul 14, 2026
Environment: Claude Code 2.x (agent harness)
Upstream re-checked: Aug 10, 2026 · 9d5e45e

Fetched the live A2A spec and confirmed the skill's securitySchemes/security + protocolVersion fields are the current schema; a memory-only baseline card used the deprecated 'authentication' field and dropped protocolVersion entirely.

Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works

Installs cleanly 5/5
Triggers reliably 5/5
Output vs. baseline 9/10
Docs & honesty 5/5

What A2A Agent Card does

Generates the A2A discovery document (agent-card.json) describing an agent's identity, capabilities, skills, and authentication. Instructs Claude to fetch the current A2A protocol spec live before writing fields, so it tracks schema evolution (e.g. the securitySchemes/security split) instead of relying on stale training knowledge. Triggers when a user is defining what their agent exposes to other agents over A2A.

How to install A2A Agent Card

git clone https://github.com/OrcaQubits/agentic-commerce-skills-plugins
cd agentic-commerce-skills-plugins
mkdir -p ~/.claude/skills
cp -r a2a-multi-agent/skills/a2a-agent-card ~/.claude/skills/a2a-agent-card

Skills live in ~/.claude/skills/ (global) or .claude/skills/ (per-project). Restart Claude Code after installing.

Commands — how to trigger A2A Agent Card

/a2a-agent-card Builds a spec-correct A2A Agent Card JSON by fetching the live protocol schema first.

It also activates on plain-language prompts like these:

Build an A2A agent card JSON for our service
Is my agent card using the current A2A schema fields?
Publish an agent card with the right security schemes

Frequently asked questions

Is the A2A Agent Card skill free?: Yes. The skill itself is free from OrcaQubits/agentic-commerce-skills-plugins. SkillProof publishes the install command and an independent test verdict at no cost.
Does A2A Agent Card work with Claude Code?: We tested it with Claude Code 2.x (agent harness) on Jul 14, 2026. Verdict: Tested · Works. Fetched the live A2A spec and confirmed the skill's securitySchemes/security + protocolVersion fields are the current schema; a memory-only baseline card used the deprecated 'authentication' field and dropped protocolVersion entirely.
What is the A2A Agent Card SkillProof Score?: 9.6/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 9/10, docs & honesty 5/5.
How do I install A2A Agent Card?: Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
Can I use A2A Agent Card with Cursor, Copilot, Gemini CLI, Codex or other AI tools?: The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.