get_capability
Return one capability's full guidance plus its input and output JSON Schemas.
# MCP tool reference
1 callable tools.
Use tools/call at https://mcp.schedulerzero.com/mcp with the exact tool name and arguments below. The /tools/ paths in this view are documentation identifiers, not HTTP endpoints. Request execution is disabled for this reference.
Inputs are shown for personal API keys (bound) and for OAuth/delegated agents. Output schemas describe MCP structuredContent: native objects pass through; arrays, scalars and null use a data wrapper. Text content retains the native JSON result.
[Connect a client](/mcp/connect) · [Authentication and authorization](/authentication) · [Generated auth guide](/auth.md) · [Download tool catalog](/mcp-catalog.json) · [Agent documentation](/llms.txt)
## get_capability
Return one capability's full guidance plus its input and output JSON Schemas.
Use before calling an unfamiliar capability to learn its prerequisites and exact argument shape.
Do not call for capabilities already summarized in a page.
Scopes: agent:capabilities
Risk: read; confirmation: none; idempotency: none.
### Input schema (personal API key)
```json
{
"type": "object",
"properties": {
"capabilityId": {
"type": "string",
"pattern": "^[a-z][a-z0-9_]{0,63}$"
}
},
"required": [
"capabilityId"
],
"patternProperties": {
"^(?!(?:capabilityId)$)[\\s\\S]*$": false
},
"additionalProperties": true,
"propertyNames": {
"anyOf": [
{
"type": "string",
"enum": [
"capabilityId"
]
}
]
}
}
```
### Input schema (OAuth / delegated agent)
```json
{
"type": "object",
"properties": {
"capabilityId": {
"type": "string",
"pattern": "^[a-z][a-z0-9_]{0,63}$"
}
},
"required": [
"capabilityId"
],
"patternProperties": {
"^(?!(?:capabilityId)$)[\\s\\S]*$": false
},
"additionalProperties": true,
"propertyNames": {
"anyOf": [
{
"type": "string",
"enum": [
"capabilityId"
]
}
]
}
}
```
### Output schema (structuredContent)
```json
{
"type": "object",
"properties": {
"id": {
"type": "string",
"pattern": "^[a-z][a-z0-9_]{0,63}$"
},
"feature": {
"$ref": "#/$defs/NonEmptyString"
},
"purpose": {
"$ref": "#/$defs/Description"
},
"prerequisites": {
"type": "array",
"items": {
"$ref": "#/$defs/ShortText"
}
},
"kind": {
"type": "string",
"enum": [
"direct_tool",
"mcp_resource",
"async_operation",
"preview_commit",
"user_completion",
"human_only"
]
},
"risk": {
"type": "string",
"enum": [
"read",
"write",
"costly",
"destructive",
"security_admin"
]
},
"scopes": {
"type": "array",
"items": {
"type": "string",
"enum": [
"agent:capabilities",
"agent:identity",
"agent:operations:cancel",
"agent:operations:read",
"analytics:export",
"analytics:read",
"apiKey:create",
"apiKey:delete",
"apiKey:read",
"apiKey:update",
"audit:read",
"billing:manage",
"billing:read",
"blocklist:create",
"blocklist:delete",
"blocklist:read",
"campaign:archive",
"campaign:create",
"campaign:delete",
"campaign:launch",
"campaign:pause",
"campaign:read",
"campaign:update",
"dialer:assign_numbers",
"dialer:assign_seats",
"dialer:create",
"dialer:delete",
"dialer:dial",
"dialer:manage_billing",
"dialer:manage_number_health",
"dialer:manage_numbers",
"dialer:manage_numbers_self",
"dialer:manage_voicemails",
"dialer:read",
"dialer:read_analytics",
"dialer:read_numbers_all",
"dialer:release_numbers",
"dialer:update",
"domain:manage_dns",
"domain:purchase",
"domain:read",
"domain:transfer",
"emailVerification:manage_credits",
"emailVerification:manage_keys",
"emailVerification:manage_sharing",
"emailVerification:read",
"emailVerification:verify",
"inbox:connect",
"inbox:create",
"inbox:delete",
"inbox:read",
"inbox:update",
"inbox:warmup_manage",
"integration:create",
"integration:delete",
"integration:read",
"integration:update",
"lead:create",
"lead:delete",
"lead:export",
"lead:import",
"lead:read",
"lead:update",
"leadList:create",
"leadList:delete",
"leadList:read",
"leadList:update",
"org:delete",
"orgAnalytics:read",
"orgAnalytics:manage",
"org:read",
"org:update",
"orgApiKey:manage",
"orgMember:invite",
"orgMember:read",
"orgMember:remove",
"orgMember:update",
"phoneVerification:manage_keys",
"phoneVerification:read",
"phoneVerification:verify",
"platform:operate",
"replyLabel:create",
"replyLabel:delete",
"replyLabel:read",
"replyLabel:update",
"role:manage",
"role:read",
"sequence:create",
"sequence:delete",
"sequence:read",
"sequence:update",
"sql:manage_dashboards",
"sql:query",
"support:create",
"support:read",
"support:update",
"tag:create",
"tag:delete",
"tag:read",
"tag:update",
"task:create",
"task:delete",
"task:read",
"task:update",
"template:create",
"template:delete",
"template:read",
"template:update",
"unibox:archive",
"unibox:label",
"unibox:read",
"unibox:reply",
"usage:read",
"webhook:create",
"webhook:delete",
"webhook:read",
"webhook:update",
"whiteLabel:read",
"whiteLabel:update",
"workflow:create",
"workflow:delete",
"workflow:publish",
"workflow:read",
"workflow:run",
"workflow:update",
"workspace:create",
"workspace:delete",
"workspace:read",
"workspace:transfer",
"workspace:update",
"workspaceMember:invite",
"workspaceMember:read",
"workspaceMember:remove",
"workspaceMember:update"
]
}
},
"confirmation": {
"type": "string",
"enum": [
"none",
"explicit",
"preview_token",
"human_completion"
]
},
"resultMode": {
"type": "string",
"enum": [
"inline",
"page",
"operation_handle",
"stream",
"download",
"redirect"
]
},
"availability": {
"type": "object",
"properties": {
"state": {
"type": "string",
"enum": [
"available",
"scope_required",
"permission_denied",
"feature_disabled",
"subscription_blocked",
"human_completion_required",
"temporarily_unavailable"
]
},
"reason": {
"$ref": "#/$defs/ShortText"
}
},
"required": [
"state"
],
"patternProperties": {
"^(?!(?:state|reason)$)[\\s\\S]*$": false
},
"additionalProperties": true,
"propertyNames": {
"type": "string",
"enum": [
"state",
"reason"
]
}
},
"inputFields": {
"type": "array",
"items": {
"$ref": "#/$defs/NonEmptyString"
}
},
"outputBounds": {
"type": "object",
"properties": {
"maxItems": {
"type": "integer",
"minimum": 0,
"maximum": 9007199254740991
},
"maxBytes": {
"type": "integer",
"exclusiveMinimum": 0
}
},
"required": [
"maxItems",
"maxBytes"
],
"patternProperties": {
"^(?!(?:maxItems|maxBytes)$)[\\s\\S]*$": false
},
"additionalProperties": true,
"propertyNames": {
"type": "string",
"enum": [
"maxItems",
"maxBytes"
]
}
},
"bundles": {
"type": "array",
"items": {
"type": "string",
"pattern": "^[a-z][a-z0-9_]{0,63}$"
}
},
"inputSchema": {
"$ref": "#/$defs/Union_"
},
"outputSchema": {
"$ref": "#/$defs/Union_"
},
"errorCodes": {
"type": "array",
"items": {
"$ref": "#/$defs/NonEmptyString"
}
},
"guidance": {
"type": "object",
"properties": {
"whenToUse": {
"$ref": "#/$defs/Description"
},
"whenNotToUse": {
"$ref": "#/$defs/Description"
}
},
"required": [
"whenToUse",
"whenNotToUse"
],
"patternProperties": {
"^(?!(?:whenToUse|whenNotToUse)$)[\\s\\S]*$": false
},
"additionalProperties": true,
"propertyNames": {
"type": "string",
"enum": [
"whenToUse",
"whenNotToUse"
]
}
}
},
"required": [
"id",
"feature",
"purpose",
"prerequisites",
"kind",
"risk",
"scopes",
"confirmation",
"resultMode",
"availability",
"inputFields",
"outputBounds",
"bundles",
"inputSchema",
"outputSchema",
"errorCodes",
"guidance"
],
"patternProperties": {
"^(?!(?:id|feature|purpose|prerequisites|kind|risk|scopes|confirmation|resultMode|availability|inputFields|outputBounds|bundles|inputSchema|outputSchema|errorCodes|guidance)$)[\\s\\S]*$": false
},
"additionalProperties": true,
"propertyNames": {
"type": "string",
"enum": [
"id",
"feature",
"purpose",
"prerequisites",
"kind",
"risk",
"scopes",
"confirmation",
"resultMode",
"availability",
"inputFields",
"outputBounds",
"bundles",
"inputSchema",
"outputSchema",
"errorCodes",
"guidance"
]
},
"$defs": {
"NonEmptyString": {
"type": "string",
"minLength": 1,
"maxLength": 4096
},
"Description": {
"type": "string",
"minLength": 1,
"maxLength": 4096
},
"ShortText": {
"type": "string",
"minLength": 1,
"maxLength": 256
},
"Union_": {
"anyOf": [
{
"type": "null"
},
{
"type": "boolean"
},
{
"type": "number"
},
{
"type": "string"
},
{
"type": "array",
"items": {
"$ref": "#/$defs/Union_"
}
},
{
"type": "object",
"additionalProperties": {
"$ref": "#/$defs/Union_"
}
}
]
}
}
}
```
### Underlying API operations
- `agent.getCapability`: `GET /agent/capabilities/:capabilityId`
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