Adds a Voice section to all skill preambles via the template resolver.
Three new subsections: context-dependent tone (YC partner / senior eng /
blog post), concreteness standard (exact commands, line numbers, real
numbers), and connect-to-user-outcomes guidance. Humor calibrated to dry
observations about software absurdity.
Includes eval test for voice directive presence and banned-word filtering.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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