36372f85b2
Nine bullets to six. Cut what the harness now ships by default: the scope-discipline bullet, "create/modify files freely" (subsumed), and the standalone refuse-dangerous-tasks bullet (restated the injection rule with examples, now merged into it). Adds progress-claim grounding for long unattended runs, per the Fable 5 guide. Codex gets both fragments now — link.sh concatenates them into ~/.agents/AGENTS.md, since Codex has no @import.