(Hopefully) a daily journal. Please correct!

Cyrus is object not subject, and μεταπεμπεται is middle (as usual) not passive. “He (Artax.) sends for Cyrus …” Then the subject of εποιησε and απεδειξε (actives, not passives as you translate) is also Artaxerxes. By mistaking the construction you made it unintelligible. Tolmides should be accusative in the first sentence, and like Cyrus should be repeated in the nominative in the 2nd, since the subject has changed.

Yes, very true. I meant to correct that in the revision. However I tried to follow Σωκράτους for Τολμίδους. But looking at usage for the name in Anabasis, I now see that I mistook it again, it should be:

Τολμίδην δὲ μεταπέμπεται…

Τολμιδους would imply root Τολμιδεσ- I assume.

But I think that I made the original mistake changing Τολμίδην to nominative in the first place because I was reading those in my head as passive forms, just as you say.

Anabasis VI.4 :

Ταύτην μὲν οὖν τὴν ἡμέραν αὐτοῦ ηὐλίζοντο ἐπὶ τοῦ αἰγιαλοῦ πρὸς τῷ λιμένι. τὸ δὲ χωρίον τοῦτο ὃ καλεῖται Κάλπης λιμὴν ἔστι μὲν ἐν τῇ Θρᾴκῃ τῇ ἐν τῇ Ἀσίᾳ· ἀρξαμένη δὲ ἡ Θρᾴκη αὕτη ἐστὶν ἀπὸ τοῦ στόματος τοῦ Πόντου μέχρι Ἡρακλείας ἐπὶ δεξιὰ εἰς τὸν Πόντον εἰσπλέοντι.

Ταύτην μὲν οὖν τὴν νύκτα αὐτοῦ ἐστρατοπεδεύσατο ἐπὶ τοῦ χωρίου πρὸς τῇ πόλει. τὸ δὲ χωρίον τοῦτο ὅ καλεῖται Κόλπον τῆς Κάρμελ ἔστι μὲν πρὸς τὴν Κάρμελ τῇ ἐπὶ τὴν θάλατταν.

The adjectives derived from nationalities like Ἑλληνικός,-ή,-όν are in my experience better used of things rather than people (with certain exceptions like e.g. Ἰλλυριοί = Illyrians but Ἰλλυρικοί = (soldiers) of the Roman diocese of Illyricum). So it would sound better if you said instead ἀνήρ εἰμι Ἕλλην / γυνή εἰμι Ἑλληνίς.