2026-10-11 18:02 UTC

Independent reproduction and OpenAI’s response will determine whether a Codex update around July 22 introduced persistent agent loops that materially increase token usage on otherwise achievable tasks.

state: expiredheat: lowuncertainty: highknownscott: mediumcodex coding-agents agent-harnessesOpenAI

What is this?

A user report titled 'Something is wrong with Codex since July 22' claims a Codex update around that date introduced persistent agent-loop behavior that increases token usage on tasks that were previously achievable more efficiently. The web results confirm OpenAI shipped GPT-5-Codex upgrades (announced July 23) emphasizing 'persistent, independent execution' on longer tasks and dynamic thinking-time allocation, which is consistent with the mechanism the complaint points at, but there is no independent reproduction or OpenAI acknowledgment of a regression in the supplied material—only the original complaint and OpenAI's own framing of the feature as an improvement.

Why it matters to Scott

Known through the 12-Factor Agents Framework’s Observable Autonomy position and the Ask terminal agent, which actively uses Codex in a recursive tool loop. If independently reproduced, the regression would directly affect Scott’s loop controls, completion criteria, model routing, and token economics; for now it remains a single unconfirmed complaint rather than evidence requiring a changed position.
ip:framework.12-factor-agents-frameworkdev:project.askdev:project.llmreportradar:concept.long-horizon-agentsradar:concept.agent-harnessesradar:concept.coding-agentsradar:hidden-reasoning-real-task-costs
queries asked of Scott's wikis
  • agent harness loop control and runaway execution
  • coding agent token economics and cost efficiency tradeoffs
  • agent autonomy vs interruptibility design principles
  • Codex CLI or coding agent tooling notes
  • persistent execution vs task completion criteria in agent design
  • known failure modes of long-running autonomous agents

Measured heat

no measured readings yet — the hourly heat pass fills this in

How the heat travelled

no chain yet — the hourly chain pass fills this in

Evidence (1) — ⭐ canonical anchor

sourceobjectauthorscorecomments
🟠 reddit ⭐Something is wrong with Codex since July 22
OpenAI
nlight47

Interpretation history

Decision trace