Jeffrey (Dongkyu) Kim 8d6896d1cc Prevent degraded stock search outages from sticking in cache ... Reviewer feedback showed that partial KRX market failures could be cached as full search answers, masking recovery on the next identical request. This change adds a regression that fails first, skips route-level caching for degraded search payloads, and keeps the trade-info empty-snapshot contract documented alongside the partial-failure response semantics. Constraint: Existing PR #124 already targets dev and must remain the follow-up lane for issue #99 Constraint: Proxy behavior must stay read-only and dependency-free Rejected: Cache degraded search payloads for a short TTL | still risks transient false negatives during the TTL window Rejected: Broaden trade-info fallback behavior | empty snapshots should stay explicit not_found results Confidence: high Scope-risk: narrow Reversibility: clean Directive: Keep degraded search responses out of the long-lived route cache unless a future design adds explicit revalidation semantics Tested: npm test --workspace k-skill-proxy; node --test scripts/skill-docs.test.js; npm run ci; explicit buildServer degraded-search recovery repro Not-tested: Live KRX production endpoints from this branch		2026-04-16 13:59:34 +09:00
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SKILL.md	Prevent degraded stock search outages from sticking in cache	2026-04-16 13:59:34 +09:00