Decision #2686: snippets are the project's pattern library, not a dedup
net. The floor, the reusing-code skill, and the snippet tool docstrings
now state the proactive model — record every shape the first time it is
built, with no will-it-recur judgment, and start later instances from
the recorded shape; second-copy consolidation stays as the backstop.
The floor guard test pins all three elements (tool, first-build trigger,
backstop) so the model cannot silently regress to the reactive wording.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
bvandeusenandClaude Fable 5
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