ha-mcp-patching

To safely update a Home Assistant automation without rewriting the configuration, apply atomic JSON Patch or Semantic Patch operations to target specific triggers, conditions, or actions for minimal risk.

Semantic patching modifies targeted elements like triggers or actions when element position is unreliable. Use it for Home Assistant scripts when path-based operations cannot accurately target the configuration node.

To apply RFC 6902 JSON Patch operations to a dashboard configuration, use path-based replace, add, remove, test, move, or copy operations to execute precise, atomic edits on targeted views.

Yes, you must always call the get operation to fetch the current configuration before patching an automation, ensuring your path-based or semantic patch targets the correct elements accurately.

The best way to add a trigger or change a mode in an existing scene is using atomic patches, which apply small, incremental edits instead of rewriting the full configuration to minimize risk.

Atomic edits prevent full configuration rewrites by applying small, controlled changes to Home Assistant dashboards, significantly reducing the risk of breaking existing views, automations, or scripts.