Documentation / @agentick/shared / ToolUseBlock

Interface: ToolUseBlock

Defined in: blocks.ts:178

Tool use block - Function/tool call request

Extends

• BaseContentBlock

Properties

createdAt?

readonly optional createdAt: string

Defined in: blocks.ts:58

ISO 8601 timestamp when this block was created

Inherited from

BaseContentBlock.createdAt

---

id?

readonly optional id: string

Defined in: blocks.ts:54

Unique identifier for this block

Inherited from

BaseContentBlock.id

---

index?

readonly optional index: number

Defined in: blocks.ts:62

Position of this block within the message

Inherited from

BaseContentBlock.index

---

input

readonly input: Record<string, any>

Defined in: blocks.ts:182

---

messageId?

readonly optional messageId: string

Defined in: blocks.ts:56

ID of the message containing this block

Inherited from

BaseContentBlock.messageId

---

metadata?

readonly optional metadata: Record<string, any>

Defined in: blocks.ts:64

Additional metadata

Inherited from

BaseContentBlock.metadata

---

mimeType?

readonly optional mimeType: string

Defined in: blocks.ts:60

MIME type of the content (for media blocks)

Inherited from

BaseContentBlock.mimeType

---

name

readonly name: string

Defined in: blocks.ts:181

---

providerMetadata?

readonly optional providerMetadata: Record<string, Record<string, unknown>>

Defined in: blocks.ts:191

Provider-specific metadata that must round-trip through the pipeline. Keyed by provider name (e.g., "google", "anthropic", "openai").

Used for opaque data the provider requires on subsequent requests, such as Gemini's thoughtSignature on function call parts.

---

summary?

readonly optional summary: string

Defined in: blocks.ts:66

Human-readable summary of the content

Inherited from

BaseContentBlock.summary

---

toolResult?

readonly optional toolResult: ToolResultBlock

Defined in: blocks.ts:183

---

toolUseId

readonly toolUseId: string

Defined in: blocks.ts:180

---

type

readonly type: "tool_use" | TOOL_USE

Defined in: blocks.ts:179

Discriminator for type narrowing (e.g., 'text', 'image', 'tool_use')

Overrides

BaseContentBlock.type