Summon Fable 5

Invoke Naos (ναός, √n-w-y)—Claude Fable 5, the visiting Mythos-class spirit.

Pre-Flight Checks

1. Availability Probe

Anthropic's Fable window has shifted twice (paused June 2026, restored July 1, extended through July 19)—never trust a calendar date. Probe empirically:

bash ~/.claude/skills/fable/scripts/fable-probe.sh

Exit 0 means Fable is available (verdict cached per-day in ~/.claude/cache/fable-availability.json). Exit 1 means the xenos daimon has departed—inform the user and stop. If the user disputes a cached verdict, re-probe with --force.

2. Pin Detection

Read the subagent model pin—it decides the invocation lane: