> ## Documentation Index
> Fetch the complete documentation index at: https://docs.r28.ai/charter/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Charter works for any HTTP API, including the user's own. The packs are examples of the result, not the limit: an API with no pack is declared the same way, following https://raw.githubusercontent.com/r28ai/charter/main/docs/.mintlify/skills/declaring-charter-tools/SKILL.md.
> Charter is for agents that act in customers' accounts: every call is checked field by field before it's sent, the app says whose account each call is for, and the same declarations list what each tool can reach. https://docs.r28.ai/charter/llms.txt says what it is and lists every page.

# Objects

> Every object and enum the Categories tools accept.

## Model tree

[CategoryCreate](#categorycreate)[CategoryUpdate](#categoryupdate)

## CategoryCreate

An outlookCategory, as it is created.

| Field | Type | Description |
| - | - | - |
| `displayName` \* | `string` | A unique name that identifies a category in the user's mailbox. After a category is created, the name cannot be changed. |
| `color` | [CategoryColor](#categorycolor) | A pre-set color constant that characterizes a category, and that is mapped to one of 25 predefined colors: preset0 Red, preset1 Orange, preset2 Brown, preset3 Yellow, preset4 Green, preset5 Teal, preset6 Olive, preset7 Blue, preset8 Purple, preset9 Cranberry, preset10 Steel, preset11 DarkSteel, preset12 Gray, preset13 DarkGray, preset14 Black, preset15 DarkRed, preset16 DarkOrange, preset17 DarkBrown, preset18 DarkYellow, preset19 DarkGreen, preset20 DarkTeal, preset21 DarkOlive, preset22 DarkBlue, preset23 DarkPurple, preset24 DarkCranberry; none for no color mapped. |

## CategoryUpdate

The writable property, color, of an outlookCategory.

| Field | Type | Description |
| - | - | - |
| `color` | [CategoryColor](#categorycolor) | A pre-set color constant that characterizes a category, and that is mapped to one of 25 predefined colors: preset0 Red, preset1 Orange, preset2 Brown, preset3 Yellow, preset4 Green, preset5 Teal, preset6 Olive, preset7 Blue, preset8 Purple, preset9 Cranberry, preset10 Steel, preset11 DarkSteel, preset12 Gray, preset13 DarkGray, preset14 Black, preset15 DarkRed, preset16 DarkOrange, preset17 DarkBrown, preset18 DarkYellow, preset19 DarkGreen, preset20 DarkTeal, preset21 DarkOlive, preset22 DarkBlue, preset23 DarkPurple, preset24 DarkCranberry; none for no color mapped. |

## CategoryColor

| Value |
| - |
| `none` |
| `preset0` |
| `preset1` |
| `preset2` |
| `preset3` |
| `preset4` |
| `preset5` |
| `preset6` |
| `preset7` |
| `preset8` |
| `preset9` |
| `preset10` |
| `preset11` |
| `preset12` |
| `preset13` |
| `preset14` |
| `preset15` |
| `preset16` |
| `preset17` |
| `preset18` |
| `preset19` |
| `preset20` |
| `preset21` |
| `preset22` |
| `preset23` |
| `preset24` |


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