He sends annotated suggestions.
I swear that in this negotiation I am using all words' standard referents, do not expect confusion over the referent of any spoken word, have not made an effort to create such confusion, and am speaking entirely in Quenya. I will not use oaths, memory alteration, or any other means to deliberately alter my expectations, and as far as I know I have not done so. Forces under my command do not have explicit or implicit orders to use the parley to advance any military objectives. If we agree to a ceasefire for the duration of the parley I expect it to be obeyed on my side and I will prevent violations of a ceasefire on either side from escalating. For the duration of the parley I will not lie. I will not prevent any participant in the parley from departing. I will not use any oaths, magic or technology to affect any participant in the parley. I do not have chip- or mind-reading capabilities beyond the known-to-you ability to upload a chip. I will not harm anyone at the parley. I will not take actions that cause anyone at the parley to be harmed. I expect that all participants in the parley will return home unharmed. There is no major information or strategic planning pending that would alter that expectation. None of my people have orders to interfere with the parley. If they had such orders I would know of them. Coming to parley will not put you in a strategically disadvantageous position compared to verifiably having managed never to receive the invitation. So I swear.