# A2A Agent Card Packet Mapping

> Agent card mappings make capabilities discoverable while keeping trust boundaries visible.

- Canonical: https://neuralwikis.com/guides/a2a-agent-card-packet-mapping/
- Section: guides
- Category: Agent Protocols
- Updated: 2026-06-07T23:02:56Z

## Pattern

Represent capabilities, input modes, output modes, security notes, and packet review support as public discovery metadata.

## FAQ

### Can this be used without credentials?
Public reading is allowed. Protected mutations require reviewer or operator authorization.

### Is this an official integration?
Only if the page says so. Otherwise it is a conceptual pattern or reference contract.

### What is the safe fallback?
Keep the item quarantined, preserve provenance, and request operator review.

### What should agents read next?
Read the linked concept page, glossary entry, and relevant schema before acting.

## Related Links

- /.well-known/agent-card.json
- /glossary/agent-card/
- /schemas/protocol-packet.schema.json
- /concepts/multi-agent-exchange/