Muslim Prayer Reminder MCP

Configure User Prayer Preferences

configure_prayer_preferences

DestructiveIdempotent

Updates persistent prayer preferences, overwriting supplied settings while preserving omitted settings. Setting fixedCity replaces stored fixedCoordinates and stores the canonical city timezone; contradictory timezones are rejected; setting fixedCoordinates replaces stored fixedCity. Can disable reminders. Fixed mode requires a supported fixedCity or fixedCoordinates with timezone; new coordinates require timezone in the same request. clearFixedLocation removes saved location and timezone and defaults to auto_travel. Combined fixed-location calculation settings are validated for the current and next local day before saving. Invalid combinations preserve the previous preferences. Auto-travel chronology is checked when a query supplies its location. Previous values are not retained for undo.

Input Schema

TableJSON Schema

Name	Required	Description
`locale`	No	Language for reminder text: en or ar
`madhab`	No	Jurisprudential Asr shadow calculation: Shafi or Hanafi
`userId`	Yes	Nonblank user identifier; at most 256 UTF-8 bytes and 256 characters. Whitespace in nonblank identifiers is preserved.
`enabled`	No	Whether prayer reminders are enabled
`timezone`	No	IANA timezone identifier (e.g. Asia/Riyadh, Europe/London)
`fixedCity`	No	Supported cities: makkah, madinah, riyadh, cairo, gaza, jerusalem, alquds, ramallah, hebron, nablus, rafah, khanyunis, dubai, abudhabi, kuwait, doha, amman, istanbul, london, paris, newyork, toronto, jakarta, singapore, karachi, kualalumpur, tehran, sydney, tromso. Aliases: gazacity, nyc, kuwaitcity. Case, spaces and punctuation are ignored.
`locationMode`	No	Location strategy: fixed uses saved location; auto_travel requires the caller to supply current city or coordinates/timezone on each query and never uses IP geolocation.
`reminderMode`	No	Reminder display policy: prayer_window, exact_window, persistent
`fixedCoordinates`	No	Fixed geographical coordinates
`highLatitudeRule`	No	High latitude twilight adjustment rule
`calculationMethod`	No	Islamic prayer calculation authority
`minuteAdjustments`	No	Custom per-prayer minute offsets (-60 to +60). For fixed locations, combined settings must preserve timetable chronology for the current and next local day before saving; auto-travel offsets are validated when a query supplies its location.
`clearFixedLocation`	No	Remove stored fixedCity, fixedCoordinates and timezone. Switches to auto_travel unless locationMode is supplied. Cannot combine with a new fixed location/timezone.
`exactWindowMinutes`	No	Duration in minutes for exact_window mode. Omitted updates preserve the saved value; if unset, the service default is 20 minutes unless the operator overrides it.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`success`	Yes	Whether configuration succeeded
`preferences`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 9, 2026

changedInput schema / properties / minuteAdjustments / description

Previous value: -"Custom per-prayer minute offsets (-60 to +60)"New value: +"Custom per-prayer minute offsets (-60 to +60). For fixed locations, combined settings must preserve timetable chronology for the current and next local day before saving; auto-travel offsets are validated when a query supplies its location."

Changed3 schema fields changedOct 3, 2026

changedInput schema / properties / exactWindowMinutes / description

Previous value: -"Duration in minutes for exact_window mode"New value: +"Duration in minutes for exact_window mode. Omitted updates preserve the saved value; if unset, the service default is 20 minutes unless the operator overrides it."

changedInput schema / properties / locationMode / description

Previous value: -"Location strategy: auto_travel or fixed"New value: +"Location strategy: fixed uses saved location; auto_travel requires the caller to supply current city or coordinates/timezone on each query and never uses IP geolocation."

addedInput schema / properties / userId / pattern
```
Added value: +"\\S"
```

Changed4 schema fields changedOct 3, 2026

addedInput schema / properties / clearFixedLocation

Added value: +{
+  "description": "Remove stored fixedCity, fixedCoordinates and timezone. Switches to auto_travel unless locationMode is supplied. Cannot combine with a new fixed location/timezone.",
+  "type": "boolean"
+}

changedInput schema / properties / fixedCity / description

Previous value: -"Predefined city name for fixed location (e.g. Riyadh, London)"New value: +"Supported cities: makkah, madinah, riyadh, cairo, gaza, jerusalem, alquds, ramallah, hebron, nablus, rafah, khanyunis, dubai, abudhabi, kuwait, doha, amman, istanbul, london, paris, newyork, toronto, jakarta, singapore, karachi, kualalumpur, tehran, sydney, tromso. Aliases: gazacity, nyc, kuwaitcity. Case, spaces and punctuation are ignored."

changedInput schema / properties / userId / description

Previous value: -"Unique user identifier"New value: +"Nonblank user identifier; at most 256 UTF-8 bytes and 256 characters. Whitespace in nonblank identifiers is preserved."

addedInput schema / properties / userId / maxLength
```
Added value: +256
```

Changed3 schema fields changedOct 2, 2026
- addedOutput schema / properties / preferences / properties / fixedCityConfigured
```
Added value: +{
+  "type": "boolean"
+}
```
- addedOutput schema / properties / preferences / properties / fixedCoordinatesConfigured
```
Added value: +{
+  "type": "boolean"
+}
```
- addedOutput schema / properties / preferences / required
```
Added value: +[
+  "fixedCoordinatesConfigured",
+  "fixedCityConfigured"
+]
```

Changed2 schema fields changedOct 1, 2026

removedOutput schema / properties / preferences / properties / fixedCoordinates

Removed value: -{
-  "additionalProperties": false,
-  "properties": {
-    "latitude": {
-      "type": "number"
-    },
-    "longitude": {
-      "type": "number"
-    }
-  },
-  "required": [
-    "latitude",
-    "longitude"
-  ],
-  "type": "object"
-}

removedOutput schema / properties / preferences / properties / userId
```
Removed value: -{
-  "type": "string"
-}
```

Changed3 schema fields changedSep 6, 2026
- removedInput schema / additionalProperties
```
Removed value: -false
```
- removedInput schema / properties / fixedCoordinates / additionalProperties
```
Removed value: -false
```
- removedInput schema / properties / minuteAdjustments / additionalProperties
```
Removed value: -false
```
First observedSep 6, 2026

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