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    MCP Tools Reference: saasservicemgmt

    Tool: create_flag

    Creates a Flag resource. Required parameters: 'parent' (e.g. projects/my-project/locations/us-central1), 'flag_id', 'flag'. Optional parameters: 'validate_only', 'request_id'.

    The following sample demonstrate how to use curl to invoke the create_flag MCP tool.

    Curl Request 
      
curl  
--location  
 'https://saasservicemgmt.googleapis.com/mcp' 
  
 \ 
--header  
 'content-type: application/json' 
  
 \ 
--header  
 'accept: application/json, text/event-stream' 
  
 \ 
--data  
 '{ 
 "method": "tools/call", 
 "params": { 
 "name": "create_flag", 
 "arguments": { 
 // provide these details according to the tool' 
s  
MCP  
specification  
 } 
  
 } 
,  
 "jsonrpc" 
:  
 "2.0" 
,  
 "id" 
:  
 1 
 } 
 '

    Input Schema

    The request structure for the CreateFlag method.

    CreateFlagRequest

    JSON representation 
     { 
 "parent" 
 : 
 string 
 , 
 "flagId" 
 : 
 string 
 , 
 "flag" 
 : 
 { 
 object (  Flag 
 
) 
 } 
 , 
 "validateOnly" 
 : 
 boolean 
 , 
 "requestId" 
 : 
 string 
 }
    Fields
    parent

    string

    Required. The parent of the flag.
    flagId

    string

    Required. The ID value for the new flag.
    flag

    object ( Flag )

    Required. The desired state for the flag.
    validateOnly

    boolean

    If "validate_only" is set to true, the service will try to validate that this request would succeed, but will not actually make changes.
    requestId

    string

    An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. The server will guarantee that for at least 60 minutes since the first request.

    For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments.

    The request ID must be a valid UUID with the exception that zero UUID is not supported (00000000-0000-0000-0000-000000000000).

    Flag

    JSON representation 
     { 
 "name" 
 : 
 string 
 , 
 "key" 
 : 
 string 
 , 
 "valueType" 
 : 
 enum ( FlagValueType 
) 
 , 
 "flagValueType" 
 : 
 enum ( ValueType 
) 
 , 
 "evaluationSpec" 
 : 
 { 
 object (  EvaluationSpec 
 
) 
 } 
 , 
 "unitKind" 
 : 
 string 
 , 
 "description" 
 : 
 string 
 , 
 "variants" 
 : 
 [ 
 { 
 object (  FlagVariant 
 
) 
 } 
 ] 
 , 
 "flagSet" 
 : 
 string 
 , 
 "state" 
 : 
 enum ( State 
) 
 , 
 "labels" 
 : 
 { 
 string 
 : 
 string 
 , 
 ... 
 } 
 , 
 "annotations" 
 : 
 { 
 string 
 : 
 string 
 , 
 ... 
 } 
 , 
 "uid" 
 : 
 string 
 , 
 "etag" 
 : 
 string 
 , 
 "createTime" 
 : 
 string 
 , 
 "updateTime" 
 : 
 string 
 }
    Fields
    name

    string

    Identifier. The resource name (full URI of the resource) following the standard naming scheme:

    "projects/{project}/locations/{location}/flags/{flag_id}"
    key

    string

    Required. Immutable. Flag key used in runtime evaluation APIs (OpenFeature). Max length: 256 bytes.
    valueType
    (deprecated)

    enum ( FlagValueType )

    Optional. Immutable. Deprecated: Use flag_value_type instead. Flag value type.
    flagValueType

    enum ( ValueType )

    Optional. Immutable. Flag value type.
    evaluationSpec

    object ( EvaluationSpec )

    Optional. Specification of how the flag value should be evaluated.

    If a bool flag is created without an evaluation_spec specified, two default variants, "Enabled" (with bool_value = true) and "Disabled" (with bool_value = false), are created by default, and "Disabled" is set as the default_target.
    unitKind

    string

    Required. Immutable. UnitKind that can consume this flag.
    description

    string

    Optional. Description of the flag. Max length: 500 bytes.
    variants[]

    object ( FlagVariant )

    Optional. A list of variants.
    flagSet

    string

    Optional. Flag set this flag belongs to.
    state

    enum ( State )

    Optional. Current state of the flag.
    labels

    map (key: string, value: string)

    Optional. The labels on the resource, which can be used for categorization. similar to Kubernetes resource labels.

    An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" } .
    annotations

    map (key: string, value: string)

    Optional. Annotations is an unstructured key-value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.

    More info: https://kubernetes.io/docs/user-guide/annotations

    An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" } .
    uid

    string

    Output only. The unique identifier of the resource. UID is unique in the time and space for this resource within the scope of the service. It is typically generated by the server on successful creation of a resource and must not be changed. UID is used to uniquely identify resources with resource name reuses. This should be a UUID4.
    etag

    string

    Output only. An opaque value that uniquely identifies a version or generation of a resource. It can be used to confirm that the client and server agree on the ordering of a resource being written.
    createTime

    string ( Timestamp format)

    Output only. The timestamp when the resource was created.

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .
    updateTime

    string ( Timestamp format)

    Output only. The timestamp when the resource was last updated. Any change to the resource made by users must refresh this value. Changes to a resource made by the service should refresh this value.

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .

    EvaluationSpec

    JSON representation 
     { 
 "variants" 
 : 
 [ 
 { 
 object (  Variant 
 
) 
 } 
 ] 
 , 
 "defaultTarget" 
 : 
 string 
 , 
 "allocations" 
 : 
 [ 
 { 
 object (  Allocation 
 
) 
 } 
 ] 
 , 
 "rules" 
 : 
 [ 
 { 
 object (  EvaluationRule 
 
) 
 } 
 ] 
 , 
 "attributes" 
 : 
 [ 
 string 
 ] 
 }
    Fields
    variants[]
    (deprecated)

    object ( Variant )

    Optional. A list of variants.
    defaultTarget

    string

    Required. Default variant or allocation of the flag.
    allocations[]

    object ( Allocation )

    Optional. A list of allocations.
    rules[]

    object ( EvaluationRule )

    Optional. Evaluation rules define the logic for evaluating the flag against a given context. The rules are evaluated sequentially in their specified order.
    attributes[]

    string

    Optional. Names of the context attributes that are used in the evaluation rules and allocations.

    Variant

    JSON representation 
     { 
 "name" 
 : 
 string 
 , 
 // Union field value 
can be only one of the following: 
 "boolValue" 
 : 
 boolean 
 , 
 "intValue" 
 : 
 string 
 , 
 "stringValue" 
 : 
 string 
 , 
 "doubleValue" 
 : 
 number 
 // End of list of possible types for union field value 
. 
 }
    Fields
    name

    string

    Required. Name of the variant. Max length: 128 bytes.

    Union field value . value is a single flag value for the variant. value can be only one of the following:
    boolValue

    boolean

    Optional. Boolean flag value.

    intValue

    string ( int64 format)

    Optional. Integer flag value.

    stringValue

    string

    Optional. String flag value.

    doubleValue

    number

    Optional. Double flag value.

    Allocation

    JSON representation 
     { 
 "id" 
 : 
 string 
 , 
 "randomizedOn" 
 : 
 string 
 , 
 "description" 
 : 
 string 
 , 
 "slots" 
 : 
 [ 
 { 
 object (  AllocationSlot 
 
) 
 } 
 ] 
 }
    Fields
    id

    string

    Required. Allocation ID. Max length: 128 bytes.
    randomizedOn

    string

    Required. Key of the context attribute that is used for traffic splitting.
    description

    string

    Optional. Description of the allocation. Max length: 500 bytes.
    slots[]

    object ( AllocationSlot )

    Required. Slots defines the weighted distribution of variants.

    AllocationSlot

    JSON representation 
     { 
 "variant" 
 : 
 string 
 , 
 "weight" 
 : 
 integer 
 }
    Fields
    variant

    string

    Required. Variant of the allocation slot.
    weight

    integer

    Required. Weight defines the proportion of traffic to allocate to the variant, relative to other slots in the same allocation.

    EvaluationRule

    JSON representation 
     { 
 "id" 
 : 
 string 
 , 
 "condition" 
 : 
 string 
 , 
 "target" 
 : 
 string 
 }
    Fields
    id

    string

    Required. Evaluation rule ID. Max length: 128 bytes.
    condition

    string

    Required. A Common Expression Language (CEL) expression that evaluates to a boolean. The expression is evaluated against the provided context. If it returns true, the rule's target is applied.
    target

    string

    Required. The target variant or allocation to apply if the condition is met. This should match the name of a defined variant or allocation's ID.

    FlagVariant

    JSON representation 
     { 
 "id" 
 : 
 string 
 , 
 "trackingId" 
 : 
 string 
 , 
 "description" 
 : 
 string 
 , 
 // Union field value 
can be only one of the following: 
 "booleanValue" 
 : 
 boolean 
 , 
 "integerValue" 
 : 
 string 
 , 
 "stringValue" 
 : 
 string 
 , 
 "doubleValue" 
 : 
 number 
 // End of list of possible types for union field value 
. 
 }
    Fields
    id

    string

    Required. Variant ID. Max length: 128 bytes.

    trackingId

    string

    Optional. trackingId is unique depending on name and value of the variant within the scope of the service. It is typically generated by the server and must not be changed. trackingId is used to uniquely identify and track variants.

    description

    string

    Optional. A human-readable description of what this variant does or represents.

    Union field value . value is a single flag value for the variant. value can be only one of the following:
    booleanValue

    boolean

    Optional. Boolean variant value.

    integerValue

    string ( int64 format)

    Optional. Integer variant value.

    stringValue

    string

    Optional. String variant value.

    doubleValue

    number

    Optional. Double variant value.

    LabelsEntry

    JSON representation 
     { 
 "key" 
 : 
 string 
 , 
 "value" 
 : 
 string 
 }
    Fields
    key

    string

    value

    string

    AnnotationsEntry

    JSON representation 
     { 
 "key" 
 : 
 string 
 , 
 "value" 
 : 
 string 
 }
    Fields
    key

    string

    value

    string

    Timestamp

    JSON representation 
     { 
 "seconds" 
 : 
 string 
 , 
 "nanos" 
 : 
 integer 
 }
    Fields
    seconds

    string ( int64 format)

    Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z. Must be between -62135596800 and 253402300799 inclusive (which corresponds to 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z).
    nanos

    integer

    Non-negative fractions of a second at nanosecond resolution. This field is the nanosecond portion of the duration, not an alternative to seconds. Negative second values with fractions must still have non-negative nanos values that count forward in time. Must be between 0 and 999,999,999 inclusive.

    Output Schema

    Represents a single Flag.

    Flag

    JSON representation 
     { 
 "name" 
 : 
 string 
 , 
 "key" 
 : 
 string 
 , 
 "valueType" 
 : 
 enum ( FlagValueType 
) 
 , 
 "flagValueType" 
 : 
 enum ( ValueType 
) 
 , 
 "evaluationSpec" 
 : 
 { 
 object (  EvaluationSpec 
 
) 
 } 
 , 
 "unitKind" 
 : 
 string 
 , 
 "description" 
 : 
 string 
 , 
 "variants" 
 : 
 [ 
 { 
 object (  FlagVariant 
 
) 
 } 
 ] 
 , 
 "flagSet" 
 : 
 string 
 , 
 "state" 
 : 
 enum ( State 
) 
 , 
 "labels" 
 : 
 { 
 string 
 : 
 string 
 , 
 ... 
 } 
 , 
 "annotations" 
 : 
 { 
 string 
 : 
 string 
 , 
 ... 
 } 
 , 
 "uid" 
 : 
 string 
 , 
 "etag" 
 : 
 string 
 , 
 "createTime" 
 : 
 string 
 , 
 "updateTime" 
 : 
 string 
 }
    Fields
    name

    string

    Identifier. The resource name (full URI of the resource) following the standard naming scheme:

    "projects/{project}/locations/{location}/flags/{flag_id}"
    key

    string

    Required. Immutable. Flag key used in runtime evaluation APIs (OpenFeature). Max length: 256 bytes.
    valueType
    (deprecated)

    enum ( FlagValueType )

    Optional. Immutable. Deprecated: Use flag_value_type instead. Flag value type.
    flagValueType

    enum ( ValueType )

    Optional. Immutable. Flag value type.
    evaluationSpec

    object ( EvaluationSpec )

    Optional. Specification of how the flag value should be evaluated.

    If a bool flag is created without an evaluation_spec specified, two default variants, "Enabled" (with bool_value = true) and "Disabled" (with bool_value = false), are created by default, and "Disabled" is set as the default_target.
    unitKind

    string

    Required. Immutable. UnitKind that can consume this flag.
    description

    string

    Optional. Description of the flag. Max length: 500 bytes.
    variants[]

    object ( FlagVariant )

    Optional. A list of variants.
    flagSet

    string

    Optional. Flag set this flag belongs to.
    state

    enum ( State )

    Optional. Current state of the flag.
    labels

    map (key: string, value: string)

    Optional. The labels on the resource, which can be used for categorization. similar to Kubernetes resource labels.

    An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" } .
    annotations

    map (key: string, value: string)

    Optional. Annotations is an unstructured key-value map stored with a resource that may be set by external tools to store and retrieve arbitrary metadata. They are not queryable and should be preserved when modifying objects.

    More info: https://kubernetes.io/docs/user-guide/annotations

    An object containing a list of "key": value pairs. Example: { "name": "wrench", "mass": "1.3kg", "count": "3" } .
    uid

    string

    Output only. The unique identifier of the resource. UID is unique in the time and space for this resource within the scope of the service. It is typically generated by the server on successful creation of a resource and must not be changed. UID is used to uniquely identify resources with resource name reuses. This should be a UUID4.
    etag

    string

    Output only. An opaque value that uniquely identifies a version or generation of a resource. It can be used to confirm that the client and server agree on the ordering of a resource being written.
    createTime

    string ( Timestamp format)

    Output only. The timestamp when the resource was created.

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .
    updateTime

    string ( Timestamp format)

    Output only. The timestamp when the resource was last updated. Any change to the resource made by users must refresh this value. Changes to a resource made by the service should refresh this value.

    Uses RFC 3339, where generated output will always be Z-normalized and use 0, 3, 6 or 9 fractional digits. Offsets other than "Z" are also accepted. Examples: "2014-10-02T15:01:23Z" , "2014-10-02T15:01:23.045123456Z" or "2014-10-02T15:01:23+05:30" .

    EvaluationSpec

    JSON representation 
     { 
 "variants" 
 : 
 [ 
 { 
 object (  Variant 
 
) 
 } 
 ] 
 , 
 "defaultTarget" 
 : 
 string 
 , 
 "allocations" 
 : 
 [ 
 { 
 object (  Allocation 
 
) 
 } 
 ] 
 , 
 "rules" 
 : 
 [ 
 { 
 object (  EvaluationRule 
 
) 
 } 
 ] 
 , 
 "attributes" 
 : 
 [ 
 string 
 ] 
 }
    Fields
    variants[]
    (deprecated)

    object ( Variant )

    Optional. A list of variants.
    defaultTarget

    string

    Required. Default variant or allocation of the flag.
    allocations[]

    object ( Allocation )

    Optional. A list of allocations.
    rules[]

    object ( EvaluationRule )

    Optional. Evaluation rules define the logic for evaluating the flag against a given context. The rules are evaluated sequentially in their specified order.
    attributes[]

    string

    Optional. Names of the context attributes that are used in the evaluation rules and allocations.

    Variant

    JSON representation 
     { 
 "name" 
 : 
 string 
 , 
 // Union field value 
can be only one of the following: 
 "boolValue" 
 : 
 boolean 
 , 
 "intValue" 
 : 
 string 
 , 
 "stringValue" 
 : 
 string 
 , 
 "doubleValue" 
 : 
 number 
 // End of list of possible types for union field value 
. 
 }
    Fields
    name

    string

    Required. Name of the variant. Max length: 128 bytes.

    Union field value . value is a single flag value for the variant. value can be only one of the following:
    boolValue

    boolean

    Optional. Boolean flag value.

    intValue

    string ( int64 format)

    Optional. Integer flag value.

    stringValue

    string

    Optional. String flag value.

    doubleValue

    number

    Optional. Double flag value.

    Allocation

    JSON representation 
     { 
 "id" 
 : 
 string 
 , 
 "randomizedOn" 
 : 
 string 
 , 
 "description" 
 : 
 string 
 , 
 "slots" 
 : 
 [ 
 { 
 object (  AllocationSlot 
 
) 
 } 
 ] 
 }
    Fields
    id

    string

    Required. Allocation ID. Max length: 128 bytes.
    randomizedOn

    string

    Required. Key of the context attribute that is used for traffic splitting.
    description

    string

    Optional. Description of the allocation. Max length: 500 bytes.
    slots[]

    object ( AllocationSlot )

    Required. Slots defines the weighted distribution of variants.

    AllocationSlot

    JSON representation 
     { 
 "variant" 
 : 
 string 
 , 
 "weight" 
 : 
 integer 
 }
    Fields
    variant

    string

    Required. Variant of the allocation slot.
    weight

    integer

    Required. Weight defines the proportion of traffic to allocate to the variant, relative to other slots in the same allocation.

    EvaluationRule

    JSON representation 
     { 
 "id" 
 : 
 string 
 , 
 "condition" 
 : 
 string 
 , 
 "target" 
 : 
 string 
 }
    Fields
    id

    string

    Required. Evaluation rule ID. Max length: 128 bytes.
    condition

    string

    Required. A Common Expression Language (CEL) expression that evaluates to a boolean. The expression is evaluated against the provided context. If it returns true, the rule's target is applied.
    target

    string

    Required. The target variant or allocation to apply if the condition is met. This should match the name of a defined variant or allocation's ID.

    FlagVariant

    JSON representation 
     { 
 "id" 
 : 
 string 
 , 
 "trackingId" 
 : 
 string 
 , 
 "description" 
 : 
 string 
 , 
 // Union field value 
can be only one of the following: 
 "booleanValue" 
 : 
 boolean 
 , 
 "integerValue" 
 : 
 string 
 , 
 "stringValue" 
 : 
 string 
 , 
 "doubleValue" 
 : 
 number 
 // End of list of possible types for union field value 
. 
 }
    Fields
    id

    string

    Required. Variant ID. Max length: 128 bytes.

    trackingId

    string

    Optional. trackingId is unique depending on name and value of the variant within the scope of the service. It is typically generated by the server and must not be changed. trackingId is used to uniquely identify and track variants.

    description

    string

    Optional. A human-readable description of what this variant does or represents.

    Union field value . value is a single flag value for the variant. value can be only one of the following:
    booleanValue

    boolean

    Optional. Boolean variant value.

    integerValue

    string ( int64 format)

    Optional. Integer variant value.

    stringValue

    string

    Optional. String variant value.

    doubleValue

    number

    Optional. Double variant value.

    LabelsEntry

    JSON representation 
     { 
 "key" 
 : 
 string 
 , 
 "value" 
 : 
 string 
 }
    Fields
    key

    string

    value

    string

    AnnotationsEntry

    JSON representation 
     { 
 "key" 
 : 
 string 
 , 
 "value" 
 : 
 string 
 }
    Fields
    key

    string

    value

    string

    Timestamp

    JSON representation 
     { 
 "seconds" 
 : 
 string 
 , 
 "nanos" 
 : 
 integer 
 }
    Fields
    seconds

    string ( int64 format)

    Represents seconds of UTC time since Unix epoch 1970-01-01T00:00:00Z. Must be between -62135596800 and 253402300799 inclusive (which corresponds to 0001-01-01T00:00:00Z to 9999-12-31T23:59:59Z).
    nanos

    integer

    Non-negative fractions of a second at nanosecond resolution. This field is the nanosecond portion of the duration, not an alternative to seconds. Negative second values with fractions must still have non-negative nanos values that count forward in time. Must be between 0 and 999,999,999 inclusive.

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