# `Agentic.Loop.Stages.ToolExecutor`

Executes pending tool calls and re-enters the loop.

When `ModeRouter` detects a `tool_use` stop_reason, it stores the tool
calls in `ctx.pending_tool_calls`. This stage executes them, appends tool
results to messages, rebuilds the tool list, and re-invokes the full pipeline.

## Callbacks

Required on `ctx.callbacks`:
- `:execute_tool` - `(name, input, ctx) -> {:ok, out} | {:ok, out, ctx} | {:error, term}`

Optional:
- `:on_tool_facts` - `(workspace_id, tool_name, result, turn) -> :ok`

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