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Claude Agent SDK for Elixir – Build AI agents with Claude Code
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lib/claude_code/hook/output/post_tool_use.ex
defmodule ClaudeCode.Hook.Output.PostToolUse do
@moduledoc """
Hook-specific output for `PostToolUse` events.
Observation-only — cannot block the tool (it already ran).
Shorthand: `{:ok, additional_context: "..."}`.
## Fields
* `:additional_context` - extra context injected into the conversation
* `:updated_mcp_tool_output` - replacement output for MCP tool results
"""
alias ClaudeCode.Hook.Output
@type t :: %__MODULE__{
additional_context: String.t() | nil,
updated_mcp_tool_output: term() | nil
}
defstruct [:additional_context, :updated_mcp_tool_output]
def to_wire(%__MODULE__{} = o) do
%{"hookEventName" => "PostToolUse"}
|> Output.maybe_put("additionalContext", o.additional_context)
|> Output.maybe_put("updatedMCPToolOutput", o.updated_mcp_tool_output)
end
end