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.
naps62