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Skills

Create skill

Create a workspace skill with a unique kebab-case name that is not reserved by a built-in skill. Requires workspace write access. Workspace API keys return `403`; use a personal API key or scoped OAuth token. OAuth scope: `api:write`.

POST/api/v2/skills

Create a workspace skill with a unique kebab-case name that is not reserved by a built-in skill. Requires workspace write access. Workspace API keys return 403; use a personal API key or scoped OAuth token.

OAuth scope: api:write.

Authentication

Send a personal or workspace API key in X-API-Key. See key types and access; operations that reject workspace keys say so in their description.

Send X-API-Key in the request header.

Alternatively

Send a Sim OAuth access token in Authorization: Bearer. See OAuth authentication and scopes.

Authorization: Bearer YOUR_ACCESS_TOKEN

Required scopes: api:write

OAuth flows
json
{
  "authorizationCode": {
    "authorizationUrl": "https://www.sim.ai/api/auth/oauth2/authorize",
    "tokenUrl": "https://www.sim.ai/api/auth/oauth2/token",
    "refreshUrl": "https://www.sim.ai/api/auth/oauth2/token",
    "scopes": {
      "api:read": "Read your workspaces, workflows, files, tables, and logs",
      "api:write": "Read, create, change, run, and delete resources in your workspaces",
      "offline_access": "Stay signed in without asking again"
    }
  }
}

OAuth scope: api:write.

Request body

Required

Definition of a new skill.

object

Definition of a new skill.

4 fields
workspaceIdstringRequired

Workspace in which to create the skill.

minLength
1
maxLength
128
namestringRequired

Kebab-case name, unique within the workspace and not reserved by a built-in skill.

minLength
1
maxLength
64
pattern
^[a-z0-9]+(-[a-z0-9]+)*$
descriptionstringRequired

One-line summary of when the skill applies.

minLength
1
maxLength
1024
contentstringRequired

Skill body containing the instructions given to the agent.

minLength
1
maxLength
50000

Additional properties are not allowed.

Request example 1

json
{
  "workspaceId": "a91c4b2e-6d3f-4e8a-b5c7-0d9e2f1a8c64",
  "name": "refund-policy",
  "description": "How support should handle refund requests",
  "content": "# Refund policy\n\nAlways check the order date first."
}

Responses

201

The skill was created.

object

The created skill including its content.

1 field
dataobjectRequired

Response data.

7 fields
idstringRequired

Unique skill identifier. A built-in skill is builtin- followed by its name, for example builtin-research.

namestringRequired

Kebab-case name that agents use to reference the skill.

descriptionstringRequired

One-line summary of when the skill applies.

readOnlybooleanRequired

Whether this is a built-in skill that cannot be modified or deleted.

createdAtstringRequired

ISO 8601 timestamp when the skill was created. Built-in skills report the Unix epoch.

format
date-time
pattern
^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
updatedAtstringRequired

ISO 8601 timestamp when the skill was last updated. Built-in skills report the Unix epoch.

format
date-time
pattern
^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
contentstringRequired

Skill body containing the instructions given to the agent.

Additional properties are not allowed.

Additional properties are not allowed.

Response example 1

json
{
  "data": {
    "id": "V1StGXR8Z5jdHi6BmyT",
    "name": "refund-policy",
    "description": "How support should handle refund requests",
    "readOnly": false,
    "createdAt": "2026-06-01T09:14:00.000Z",
    "updatedAt": "2026-06-20T14:02:11.000Z",
    "content": "# Refund policy\n\nAlways check the order date first."
  }
}

Response headers

X-RateLimit-Limitinteger

Maximum requests allowed in the current window.

minimum
0
maximum
9007199254740991
X-RateLimit-Remaininginteger

Requests remaining in the current window.

minimum
0
maximum
9007199254740991
X-RateLimit-Resetstring

ISO 8601 timestamp when the current rate-limit window resets.

format
date-time
pattern
^(?:(?:\d\d[2468][048]|\d\d[13579][26]|\d\d0[48]|[02468][048]00|[13579][26]00)-02-29|\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\d|30)|(?:02)-(?:0[1-9]|1\d|2[0-8])))T(?:(?:[01]\d|2[0-3]):[0-5]\d(?::[0-5]\d(?:\.\d+)?)?(?:Z))$
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