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Token prices don't reflect the true cost of AI models in code reviews. Turns and verified outcomes are better measures, revealing hidden expenses in agent workloads.

Article
The rise of the harness engineer highlights a new role in managing AI-generated code, focusing on maintaining quality and addressing increased bugs and production incidents.

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The article questions the reliance on AI coding assistants, emphasizing the importance of specification, verification, and tests in software engineering.

Article
Tessl Academy introduces Code Review Loops, a course on agentic code review, teaching skills like writing review lenses and handling pull requests in four concise lessons.

Article
Tessl Code Review aligns with team standards, reviewing entire PRs and tracking changes, tailored for code written by AI agents rather than humans.

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The article explores a shift in software development where humans focus on system architecture while AI handles coding, emphasizing a new approach to creating reliable software.
NOVEMBER 2 – 4
AI DevCon is heading back to NYC! The best place to master agentic coding. For the developers and teams building with agents. Two days in Brooklyn for the people putting agents to work in real codebases. AI DevCon brings together developers, engineering leaders, and teams using agentic coding in practice. For 2026, the focus is scaling AI-native development beyond the individual: across teams, codebases, and platforms. Expect real-world AI engineering, practical dev tooling, and hands-on sessions from the people shipping with agents. Real-world AI engineering. Straight from people shipping it. Practical dev tooling. Things you can use on Monday. Hands-on sessions. Not slideware. Help shape AI DevCon. CALL FOR PAPERS Agentic coding is the norm. We want deep, technical talks on harness engineering, agent enablement, software factories, and scaling AI-native development. Submit a talk -> Sponsor AI DevCon Direct access to the developers and technical leaders shaping how AI agents get built, governed, and scaled. These are the teams deciding which tools they adopt. More speakers, agenda details, and exciting announcements coming soon. See you in NYC! 🗽 Check out the official AI Native DevCon site - https://ainativedevcon.io/
Your 2-min weekly roundup of AI dev news, tools, curated content and events.
Read by engineer leaders at

850 PRs a Week: How Tessl Runs a Software Factory
Tessl's factory peaked at 850 pull requests in a week, 85 to 90% of them agent-handled end to end. Dru Knox on what that actually took, and why the two biggest changes weren't the speed anyone was chasing.
2 Sept 2026 · 51 min 17 sec

Lada Kesseler: I Trust AI Tests Less Than AI Code
Lada Kesseler trusts AI-written tests less than AI-written code, and thinks most teams chasing a software factory are about to drown in garbage. On ground rules, loop engineering, and refining your way to quality.
25 Aug 2026 · 45 min 49 sec · with Lada Kesseler

Every Repo Is a Software Factory Now | Don Syme, GitHub
Don Syme on why every repo is becoming a software factory, why guardrails let you run faster, and why no pull request should reach a human reviewer unless the quality gates have already earned its place.
18 Aug 2026 · 01 h 04 min · with Don Syme

The Background Check You Can't Run on an AI Agent
Non-determinism is the feature and the bug. Keycard's Ian Livingstone on why agent identity breaks everything OAuth assumed, and the new layer that has to replace it: mission.
11 Aug 2026 · 47 min 44 sec

Datadog Deleted All Its AI Context. It Worked.
Datadog deleted a year of AI context files expecting worse performance. Instead, their evals got better. Simon Boudrias on scaling Cursor and Claude Code to 4,000 engineers, and what that taught them about context rot.
4 Aug 2026 · 01 h 01 min · with Simon Boudrias

Inside the Dark Factory: AI That Ships Code Solo
Tessl's AI engineering lead reveals 95% of their code has never been reviewed by a human, and the Dark Factory behind it ships through entire weekends. Here is how they built enough trust to let it run.
28 Jul 2026 · 58 min 37 sec · with Rob Willoughby
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