Claude found an odd-m construction for the open Hamiltonian decomposition problem, impressing Prof. Donald Knuth, who titled the resulting paper "Claude’s Cycles." The updated research reveals that for the base case m=3, there are 11,502 Hamiltonian cycles, with 996 generalizing to all odd-m, and 760 valid "Claude-like" decompositions identified.

On February 28, 2026, American forces mistakenly bombed the Shajareh Tayyebeh primary school in Minab, Iran, killing between 175 and 180 people, primarily young girls. Following the incident, speculation arose regarding whether the AI chatbot Claude played a role in selecting the school as a target.

The .claude/ folder contains CLAUDE.md, custom commands, skills, agents, and permissions for AI setup. Postman's cost savings analysis reveals significant time and cost differences in API development workflows when integrating AI.

Claude Code provides three options for scheduling recurring tasks: Cloud, Desktop, and /loop. The Cloud option operates on Anthropic's cloud without requiring a machine to be on or an open session, while Desktop and /loop require the machine to be on, with /loop needing an open session and not being persistent across restarts.

Session limits for Claude will be adjusted for free, pro, and max subscriptions during peak hours to manage increased demand. Users will experience a 5-hour session limit during these times.

Claude Code v2.1.81 was running five instances at the time of shutdown. A force shutdown was initiated at 01:36:33, with 162 processes still active, including 21 Python processes, before the system booted at 01:37:11.

Claude Code has experienced an 8% week-over-week growth, with a doubling time of 61 days. The earliest observed public-era commits for Claude Code adoption include a change to the initial game setup in the moinmir/ClashOfCans project on February 24, 2025.

OpenAI's latest repository lists Claude as the third top contributor. The information was shared in a post on X.

A Swift reimplementation of a Claude Code-style coding agent is available on GitHub, built stage by stage to analyze the architecture of coding agents. A complete 9-part learning series is offered on ivanmagda.dev, focusing on the effective design choices that contribute to the performance of coding agents.

A first AI-assisted pull request was created for Chroma, the default syntax highlighter in Hugo, using Claude Code. The contribution, which adds syntax highlighting for ERB snippets, was approved and merged by the maintainer.