settings/writeValue

Experimental

Writes one key path’s absolute value (null clears the member to absent); answers the folded effective value.

Parameters

Type: SettingsWriteValueParams

settings/writeValue params: {keyPath, value} — one persisted dotted key path verbatim with its new absolute value. A null value clears the member to absent and the built-in fallback applies, for every key group. Values are absolute, so a retry is naturally idempotent and the method carries no commandId.

Field	Type	Stability	Presence	Description
keyPath	string	Experimental	required	The persisted dotted key path verbatim (file spelling, transmitted as-is — a casing exemption in the commandRejected-reason sense, not camelCase wire vocabulary).
value	string | boolean | null	Experimental	required	The new absolute value, or null to clear the member to absent. Free-form: the per-key shape is enforced at the config seam.

Source

schema/msp/experimental/msp.schema.json#/methods/settings~2FwriteValue

{
  "description": "Writes one key path's absolute value (null clears the member to absent); answers the folded effective value.",
  "params": {
    "$ref": "#/$defs/SettingsWriteValueParams"
  },
  "result": {
    "$ref": "#/$defs/SettingsWriteValueResult"
  },
  "x-msp-descriptor": "settings/writeValue",
  "x-msp-stability": "experimental"
}