The architecture has been updated

hermes_code/optional-skills/DESCRIPTION.md

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+# Optional Skills
+
+Official skills maintained by Nous Research that are **not activated by default**.
+
+These skills ship with the hermes-agent repository but are not copied to
+`~/.hermes/skills/` during setup. They are discoverable via the Skills Hub:
+
+```bash
+hermes skills browse               # browse all skills, official shown first
+hermes skills browse --source official  # browse only official optional skills
+hermes skills search <query>       # finds optional skills labeled "official"
+hermes skills install <identifier> # copies to ~/.hermes/skills/ and activates
+```
+
+## Why optional?
+
+Some skills are useful but not broadly needed by every user:
+
+- **Niche integrations** — specific paid services, specialized tools
+- **Experimental features** — promising but not yet proven
+- **Heavyweight dependencies** — require significant setup (API keys, installs)
+
+By keeping them optional, we keep the default skill set lean while still
+providing curated, tested, official skills for users who want them.