Method buildTools

internal/tui/model.go:686–693

buildTools exposes the four local tools every turn: bash, read_file, write_file, edit_file. No loop/control tool; a turn ends when the model stops emitting tool calls (see handleStreamClosed).

()

	m.turnStart = time.Now()
	m.lastOutcome = outcomeNone // the new run replaces the prior frozen summary
	m.phase = phaseThinking
	return m.startChat()
}

// appendUserTurn appends a user-role message to history and starts a turn.
// The only path that does so; used by submit.
func (m *Model) appendUserTurn(content string) tea.Cmd {
	m.history = append(m.history, chmctx.Message{Role: chmctx.RoleUser, Content: content})
	return m.beginTurn()
}