AI Coding Weekly

T3 Code

Theo's coding product measuring model traffic and usage. Every AI Coding Weekly story on T3 Code, newest first. 3 stories since October 2026.

  • T3 Code adds cross-provider delegation and native subagents

    One pull request brings child threads, mid-thread model switching and an ACP registry for Devin, Cline, Kimi and Droid.

    · Model and agent watch

  • Theo. Opus 5.5 takes half of all T3 Code prompts

    The first model in Theo's coding product to cross a 50% share of traffic, by his own account.

    · Receipts

  • Have the good opinion, not the loud one

    One email a day. Under three minutes. What working engineers found out about coding with AI.

  • Theo hides running agent threads in T3 Code

    A beta option surfaces an agent thread only when it wants attention, and Theo says the cost is the spatial stability he spent effort building.

    · How they actually work

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Coding with AI, read daily so you do not have to. The experiments, the receipts and the arguments from engineers shipping real software. Not a changelog.