What the HANDBOOK.md benchmark measures, why the best model still fails two of every three tasks under strict grading, and what that means for the rules you keep in CLAUDE.md an...
What the HANDBOOK.md benchmark measures, why the best model still fails two of every three tasks under strict grading, and what that means for the rules you keep in CLAUDE.md an...
One week of agent-first backend work in the logs: 2,200 session files across four tools, 350 prompts typed by hand, and which checks actually found real defects.
Where Claude Code, Codex, Cursor, Amp, opencode, and pi store session logs, which formats they use, how long they keep them, and what remains undocumented.
One block in CLAUDE.md and AGENTS.md that makes coding agents write throwaway scripts in Ruby instead of Python or bash, so you stay the reviewer instead of a rubber stamp