Hermes Agent v0.19–0.21 Adds New Commands for Context, Sessions, and Security

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A developer guide published on September 11, 2026, documents new and updated commands introduced in Hermes Agent versions 0.19 through 0.21. Key additions include /context for tracking context window usage, /diff for viewing file changes, and /init for auto-generating project context files. The update also brings hermes secrets for pulling API keys from password managers like Bitwarden and 1Password, replacing plaintext storage. Other notable features include session export with a redaction option, deny rules to block dangerous commands, and background task persistence across system restarts. The author recommends new users start with status-checking commands before moving to more complex operations.

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