Herm carries useful context across sessions without requiring your application
to replay every prior turn. Memory is scoped to the organization, agent, and
stable subjectId supplied when a session is created.
Memory
The built-in memory tool lets the agent save, replace, and remove durable
facts. session_search lets it retrieve relevant context from previous
conversations. Both toolsets can be configured through the agent’s tools
array.
Reuse the same subjectId for the same person, team, organization, or workspace.
Changing it intentionally creates a separate memory and workspace boundary.
Self-learning
After turns, Hermes periodically reviews work to identify durable facts and
reusable procedures. Useful procedures can become learned skills in the
subject’s persistent workspace and can inform later sessions.
Background review is asynchronous and best effort; do not use it as the system
of record for data your application must retain. Put mandatory instructions in
the agent’s configured skills array instead.
Configured skills are versioned agent configuration. Learned skills are scoped
to an agent and subject and survive across sessions. Public learned-skill
management endpoints are not currently available.
See Skills for configured skill behavior and
Tools for memory tool controls. Last modified on July 25, 2026
