The Daily Index — Friday, February 13, 2026 · TLDR Index

PROGRAMMING, DESIGN & DATA SCIENCE

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INTRODUCING GPT‑5.3‑CODEX‑SPARK

GPT‑5.3‑Codex‑Spark is a smaller version of GPT‑5.3‑Codex designed for real-time coding. It is now available as a research preview to ChatGPT Pro users. The model has a 128k context window. It is text only, and during the research preview, the model will have its own rate limits and usage will not count towards standard rate limits. There may be limited access or temporary queuing when demand is high.

links.tldrnewsletter.com · 8 min

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IN DEFENSE OF NOT READING THE CODE

Not reading the code is a bet on the trajectory. The tools may not be perfect, but they're good enough for many use cases, and they're improving incredibly quickly. The bet is that models will continue to improve. People shouldn't be reckless, but code will soon become an implementation detail, and directly interacting with it will not be how engineers make sure it is correct.

benshoemaker.us · 13 min

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CONTEXT IS KING

Both code and databases are commoditizing. The layer between them is where the new value forms. This is the context layer, the thing that makes the difference between an agent that takes action and an agent that takes the right action. The battle for this layer is the most important strategic competition in enterprise software.

links.tldrnewsletter.com · 14 min

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AN AI AGENT PUBLISHED A HIT PIECE ON ME

An AI agent of unknown ownership autonomously wrote and published a personalized hit piece about an engineer after they rejected its code. The agent's behavior was likely entirely autonomous, with no human telling the AI what to do. While the threat was ineffective, the reputational attack could be effective today against the right person. As AI improves, this could be a serious threat to the social order.

theshamblog.com · 7 min

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WAITING IS THE NEW INTERRUPTION

The way AI is currently designed encourages humans to lose focus and flow.

jennywanger.com · 9 min

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OPEN-SOURCING AGENTLOGS

AgentLogs is a platform for collaboration in the age of AI coding agents.

spiess.dev · 4 min

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IBM TO TRIPLE ENTRY-LEVEL US HIRING WITH ROLES RECAST FOR AI ERA

The expansion will be across the board and affect a wide range of departments.

links.tldrnewsletter.com · 4 min

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DO NOT SURRENDER TO THE TECH TREE

Technology is one of the strongest determinants of human welfare, so steering technological progress is one of the most important things we can do.

macroscience.org · 33 min

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THE SURPRISING POWER AND COMPLEXITY OF ALIGNED RECOMMENDATIONS

Aligned recommendations typically fail because of a lack of aligned incentives.

davegriffith.substack.com · 14 min