preview · S-116
Agent Host Protocol
Host persistent agent sessions that clients can subscribe to and resume.
Markdown · JSON · Canonical source
- Revision
- 0.5.x
- Maturity
- preview
- Authority
- Microsoft
- Structure
- Session host and client protocol
- Roles
- session-host, client
AHP addresses durable agent sessions and client access to those sessions. It is distinct from ACP’s editor-to-coding-agent boundary and from A2A task exchange.
The research snapshot treats AHP as preview. Compatibility claims should include a precise implementation version and feature flag or preview state until the protocol and host behavior stabilize.
Catalog mapping
Atomic capability rows
Absence here means the feature tree has not yet been published, not that the specification lacks the capability.
Conformance boundary
Proposed tests
Definitions only. No fixture has been executed against a harness.
- T-AHP-001AHP session subscribe and resume · preview