The authors built 40 small Python projects in which the instruction file asks for one convention and the existing code uses another, such as print instead of logging. Claude Code (with Claude Sonnet 5.5) and Codex CLI (with GPT-6 Sol)…
In the News: October 24, 2026 (Midday)
In a 320-run test, coding agents followed a stale CLAUDE.md or AGENTS.md over the code 90.1% of the time; one added sentence raised code-following from 4.2% to 91.4%.
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Agents follow a stale CLAUDE.md or AGENTS.md over the code, and one sentence reverses it
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Anthropic's Applied AI team says many enterprise agents should fold subagents into one loop
Anthropic says that across several enterprise deployments it compared, "a single agent with skills frequently outperformed both the one-prompt-for-everything design and the subagent design on quality," often at lower cost and latency. It…