agent: document @functools.cache pattern for IO-intensive private helpers in skills#1815
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…ate helpers Agent-Logs-Url: https://github.com/usethis-python/usethis-python/sessions/ad1a71e8-94ef-4eca-b9af-32019336542e Co-authored-by: nathanjmcdougall <18602289+nathanjmcdougall@users.noreply.github.com>
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[WIP] Add caching for private helper functions in conftest
agent: document @functools.cache pattern for IO-intensive private helpers in skills
Apr 4, 2026
nathanjmcdougall
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Apr 4, 2026
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Agent guidelines lacked explicit instruction to apply
@functools.cacheto IO-intensive private helpers or to register their.cache_clear()in the conftest fixture — leaving both steps to tribal knowledge.Changes
usethis-python-codeskill (v1.6 → v1.7): New "Caching IO-intensive private helpers" section — when to apply@functools.cache(read-only, called multiple times per invocation), the three-step procedure, and common mistakes (caching side-effectful functions, omitting conftest registration).usethis-python-testskill (v1.1 → v1.2): New "Clearing functools caches between tests" section — two-step procedure for importing and registering.cache_clear()inclear_functools_caches, with explanation of why omitting it causes silent test pollution.