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

# Update skill

> Change the description, allowed tools or instructions of a structured skill, where omitted tools and instructions keep their values; returns the updated skill source document.

`updateSkill(projectReference: String!, id: String!, input: UpdateSkillInput!): SkillSource!`

Requires project.agents.write.

## Arguments

| Argument | Type | Required | Description |
| - | - | - | - |
| `projectReference` | [`String!`](https://veryfront.com/docs/cloud/graphql/types/string) | Yes | |
| `id` | [`String!`](https://veryfront.com/docs/cloud/graphql/types/string) | Yes | The id of the definition, from its list. |
| `input` | [`UpdateSkillInput!`](https://veryfront.com/docs/cloud/graphql/types/updateskillinput) | Yes | |

## Input fields

### input

[`UpdateSkillInput`](https://veryfront.com/docs/cloud/graphql/types/updateskillinput)

| Field | Type | Required | Description |
| - | - | - | - |
| `name` | [`String`](https://veryfront.com/docs/cloud/graphql/types/string) | No | Must equal the id argument when sent: a skill cannot be renamed. |
| `description` | [`String!`](https://veryfront.com/docs/cloud/graphql/types/string) | Yes | |
| `allowedTools` | [`[String!]`](https://veryfront.com/docs/cloud/graphql/types/string) | No | Replaces the list when sent; omit it to keep the current list. |
| `instructions` | [`String`](https://veryfront.com/docs/cloud/graphql/types/string) | No | Full markdown body of SKILL.md, meaning everything below the frontmatter, written verbatim with any markdown headings. Sending it replaces the whole body. The former sections object is rejected; put the whole skill here. |
| `sourceTargetKind` | [`WriteTargetKind`](https://veryfront.com/docs/cloud/graphql/types/writetargetkind) | No | The source to write; default project. |
| `targetBranchId` | [`ID`](https://veryfront.com/docs/cloud/graphql/types/id) | No | Required with the kind preview\_branch. |

## Response

Returns [`SkillSource!`](https://veryfront.com/docs/cloud/graphql/types/skillsource). Open the type for its fields and nested types.

| Field | Type | Description |
| - | - | - |
| `id` | [`ID!`](https://veryfront.com/docs/cloud/graphql/types/id) | |
| `name` | [`String!`](https://veryfront.com/docs/cloud/graphql/types/string) | |
| `description` | [`String!`](https://veryfront.com/docs/cloud/graphql/types/string) | |
| `sourcePath` | [`String!`](https://veryfront.com/docs/cloud/graphql/types/string) | |
| `editMode` | [`SourceEditMode!`](https://veryfront.com/docs/cloud/graphql/types/sourceeditmode) | |
| `allowedTools` | [`[String!]!`](https://veryfront.com/docs/cloud/graphql/types/string) | |
| `instructions` | [`String!`](https://veryfront.com/docs/cloud/graphql/types/string) | The Markdown body of SKILL.md, excluding frontmatter. |
| `sections` | [`StringMap!`](https://veryfront.com/docs/cloud/graphql/types/stringmap) | Read-only sections derived from the level-two headings of the body; empty when the body cannot be split. |

[All fields of `SkillSource`](https://veryfront.com/docs/cloud/graphql/types/skillsource).

Types marked with `!` cannot be null. Lists use `[Type]` notation. The [type index](https://veryfront.com/docs/cloud/graphql/schema.md) lists all published input and response types.

## Example

```graphql title="query.graphql" theme={null}
mutation UpdateSkill($projectReference: String!, $id: String!, $input: UpdateSkillInput!) {
  updateSkill(projectReference: $projectReference, id: $id, input: $input) {
    id
    name
    allowedTools
    description
    editMode
  }
}
```

```json title="variables.json" theme={null}
{
  "projectReference": "00000000-0000-4000-8000-000000000001",
  "id": "example",
  "input": {
    "description": "example"
  }
}
```

<details>
  <summary>Try this mutation</summary>

  Calls use `https://api.veryfront.com/graphql`. Replace sample values with resources you can access. See [Authentication](https://veryfront.com/docs/cloud/authentication.md) for credentials and permissions.

  Bearer token or API key

  Stored in this tab's session. Clear credential

  Mutation

  Variables (JSON)
</details>


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