# `ACP.ToolCallUpdate`
[🔗](https://github.com/f1729/agent-client-protocol-elixir/blob/main/lib/acp/tool_call.ex#L243)

An update to an existing tool call.

# `t`
[🔗](https://github.com/f1729/agent-client-protocol-elixir/blob/main/lib/acp/tool_call.ex#L246)

```elixir
@type t() :: %ACP.ToolCallUpdate{
  fields: ACP.ToolCallUpdateFields.t(),
  meta: map() | nil,
  tool_call_id: String.t()
}
```

# `from_json`
[🔗](https://github.com/f1729/agent-client-protocol-elixir/blob/main/lib/acp/tool_call.ex#L266)

# `new`
[🔗](https://github.com/f1729/agent-client-protocol-elixir/blob/main/lib/acp/tool_call.ex#L255)

# `to_json`
[🔗](https://github.com/f1729/agent-client-protocol-elixir/blob/main/lib/acp/tool_call.ex#L259)

---

*Consult [api-reference.md](api-reference.md) for complete listing*