June 1, 2026
Claude Code 4.8 vs. Codex GPT 5.5
Most of an agent transcript is the agent getting its bearings — directory listings, file reads, edits that flubbed three times before they worked. The signal is the intent underneath: what the human asked for and what the agent decided. https://withstoa.com lets you and a co-founder prototype a tool to strip away the rest — live, in a shared agent sandbox. In this Maker Meeting, Jake works with Sean Johnson (CTO and co-founder of SpecStory) on a real internal problem: SpecStory histories are long, and feeding full transcripts into their PR-summary tooling burns tokens. They set out to build a compressor that distills a history down to the minimum representation of intent — keeping the human/agent dialogue and the decisions, dropping the mechanical tool activity. They turn the meeting's own transcript into a spec, then race two implementations head-to-head: Claude Code (Opus 4.8) building locally and Codex (GPT-5.5) building in parallel, with a third agent judging the results. Along the way they meet the "Ben Distiller," watch the agents discover and shame each other, and land on a surprising disagreement over how to treat context compaction. In this episode, we cover: 0:00 The problem: compressing Spec Story histories for PR summaries 1:11 What counts as "core context" — and why this is lossy compression 1:48 Preserve the intent, drop the tool-call details 2:18 Turning the transcript into a spec: meet the "Ben Distiller" 3:19 The rule of thumb: keep decisions, drop the agent getting its bearings 3:57 Going local-first with adversarial agents 4:55 Claude Code vs. Codex: a head-to-head build 6:13 Judging the two outputs — and getting "shamed" 6:43 The compaction surprise and the takeaway Follow: YouTube ▶ https://www.youtube.com/@UCXgR8mzS-Ja3pvA8xsuV9Tg LinkedIn ▶ https://www.linkedin.com/company/specstory/ X ▶ https://x.com/specstoryai Website ▶ https://withstoa.com ------- Song: Tunetank - Whiskey Blues (No Copyright Music) Music provided by Tunetank. Free Download: https://bit.ly/48Rl83b Video Link: • Smooth Relaxed Jazz (Copyright Free Music)