Fable-Cheap Adds Cost, Safety Guardrails
Fable-Cheap is an MIT-licensed Claude Code skill that reduces waste on long, multi-file builds through narrow reads, edit-over-rewrite guidance, finish gates, and attacker testing. Its author reports a $222 Fable 5.2 benchmark baseline across six builds, but has not yet rerun the benchmark with the skill enabled.
Fable-Cheap focuses on workflow economics and reliability rather than pretending prompts can change a model’s underlying capabilities.
- –Targets expensive output and context rereads, including whole-file rewrites and oversized logs
- –Adds a finish gate for placeholders, abandoned agents, stale documentation, and running servers
- –Treats security as part of completion, covering traversal, device nodes, protocol validation, secrets, and localhost services
- –The reported $122 output cost is a useful baseline, not evidence of savings from Fable-Cheap itself
- –Guidance remains model-compliance dependent, while its simple finish-check script can miss unusual secrets or flag harmless files
DISCOVERED
1h ago
2026-11-10
PUBLISHED
2h ago
2026-11-10
RELEVANCE
AUTHOR
aicodeking