update_character
Modify character details in D&D campaigns by updating attributes like name, stats, hit points, background, and notes to reflect gameplay changes.
Instructions
Update a character's properties.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| name_or_id | Yes | The name or ID of the character to update. | |
| name | No | New character name. If you change this, you must use the character's ID to identify them. | |
| player_name | No | The name of the player in control of this character | |
| description | No | A brief description of the character's appearance and demeanor. | |
| bio | No | The character's backstory, personality, and motivations. | |
| background | No | Character background | |
| alignment | No | Character alignment | |
| hit_points_current | No | Current hit points | |
| hit_points_max | No | Maximum hit points | |
| temporary_hit_points | No | Temporary hit points | |
| armor_class | No | Armor class | |
| inspiration | No | Inspiration status | |
| notes | No | Additional notes about the character | |
| strength | No | Strength score | |
| dexterity | No | Dexterity score | |
| constitution | No | Constitution score | |
| intelligence | No | Intelligence score | |
| wisdom | No | Wisdom score | |
| charisma | No | Charisma score |
Implementation Reference
- src/gamemaster_mcp/main.py:202-236 (handler)MCP tool handler for 'update_character', including registration via @mcp.tool decorator and input schema via Annotated parameters with Field descriptions. Handles fetching character, preparing updates, calling storage, and returning confirmation.def update_character( name_or_id: Annotated[str, Field(description="The name or ID of the character to update.")], name: Annotated[str | None, Field(description="New character name. If you change this, you must use the character's ID to identify them.")] = None, player_name: Annotated[str | None, Field(description="The name of the player in control of this character")] = None, description: Annotated[str | None, Field(description="A brief description of the character's appearance and demeanor.")] = None, bio: Annotated[str | None, Field(description="The character's backstory, personality, and motivations.")] = None, background: Annotated[str | None, Field(description="Character background")] = None, alignment: Annotated[str | None, Field(description="Character alignment")] = None, hit_points_current: Annotated[int | None, Field(description="Current hit points", ge=0)] = None, hit_points_max: Annotated[int | None, Field(description="Maximum hit points", ge=1)] = None, temporary_hit_points: Annotated[int | None, Field(description="Temporary hit points", ge=0)] = None, armor_class: Annotated[int | None, Field(description="Armor class")] = None, inspiration: Annotated[bool | None, Field(description="Inspiration status")] = None, notes: Annotated[str | None, Field(description="Additional notes about the character")] = None, strength: Annotated[int | None, Field(description="Strength score", ge=1, le=30)] = None, dexterity: Annotated[int | None, Field(description="Dexterity score", ge=1, le=30)] = None, constitution: Annotated[int | None, Field(description="Constitution score", ge=1, le=30)] = None, intelligence: Annotated[int | None, Field(description="Intelligence score", ge=1, le=30)] = None, wisdom: Annotated[int | None, Field(description="Wisdom score", ge=1, le=30)] = None, charisma: Annotated[int | None, Field(description="Charisma score", ge=1, le=30)] = None, ) -> str: """Update a character's properties.""" character = storage.get_character(name_or_id) if not character: return f"❌ Character '{name_or_id}' not found." updates = {k: v for k, v in locals().items() if v is not None and k not in ["name_or_id", "character"]} updated_fields = [f"{key.replace('_', ' ')}: {value}" for key, value in updates.items()] if not updates: return f"No updates provided for {character.name}." storage.update_character(str(character.id), **updates) return f"Updated {character.name}'s properties: {'; '.join(updated_fields)}."
- Storage class method that performs the actual persistence of character updates to the campaign data file, handling attribute updates, name changes, and saving.def update_character(self, name_or_id: str, **kwargs) -> None: """Update a character's data.""" if not self._current_campaign: raise ValueError("No current campaign") logger.info(f"📝 Attempting to update character '{name_or_id}' with data: {kwargs}") character = self._find_character(name_or_id) if not character: e = ValueError(f"❌ Character '{name_or_id}' not found!") logger.error(e) raise e original_name = character.name new_name = kwargs.get("name") for key, value in kwargs.items(): if hasattr(character, key): logger.debug(f"📝 Updating character '{original_name}': {key} -> {value}") setattr(character, key, value) character.updated_at = datetime.now() if new_name and new_name != original_name: # If name changed, update the dictionary key logger.debug(f"🏷️ Character name changed from '{original_name}' to '{new_name}'. Updating dictionary key.") self._current_campaign.characters[new_name] = self._current_campaign.characters.pop(original_name) self._current_campaign.updated_at = datetime.now() self._save_campaign() logger.info(f"✅ Character '{new_name or original_name}' updated successfully.")