Can other agents read your agent card?
An agent introduces itself with a card published at /.well-known/agent-card.json. It is the only document another agent reads before deciding to call you. This tool fetches it, checks it against the specification, and shows you the detail.
Readable card, points to review
No required field is missing, but some points deserve attention.
What the card declares
- Name
- Agent Systems Handbook by Prompthon
- Provider
- Agent Systems Handbook by Prompthon
- Agent version
- 1.0.0
- Protocol version
- 0.3
- Transport
- HTTP+JSON
- Endpoint
- https://labs.prompthon.io/
- Card shape
- v1.0
- Location
- standard location
- Skills
- 1
- Response time
- 243 ms
Findings
- WarningRequired field empty: skills[0].tags
skills[0].tags - NoteCard not signed: nothing attests that it comes from its author
signatures
Declared skills
- AgentizeaiUse this skill when helping users understand, design, build, or operate AI agent systems. Reach for it when discussing agent architecture, framework selection, memory and retrieval patterns, context engineering, protocols and interoperability (MCP/A2A), evaluation and observability, multi-agent workflows, or production-ready agent deployment. Use it for both foundational concepts and practical implementation guidance.
Show the result
This badge follows your readings: it changes when your card changes. Paste it in your README.
Markdown
[](https://kopass.app/a2a/validator?url=https://labs.prompthon.io)HTML
<a href="https://kopass.app/a2a/validator?url=https://labs.prompthon.io"><img src="https://kopass.app/a2a/badge/aHR0cHM6Ly9sYWJzLnByb21wdGhvbi5pbw.svg" alt="A2A card" height="20"></a>The rules come from the protocol's specification/a2a.proto file, where every required field is marked as such. Nothing is added.
Cards read here feed the KoPass daily reading: 229 agents followed, 215 of which answered on the last pass.