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Two real gaps GPT-Boy flagged:
1. RedisLocalSkill{List,Import}Store.PopPending was doing ZREM then SET as
two separate round-trips. If the SET failed for any reason — transient
Redis error, context cancellation, pod getting SIGKILL'd mid-call — the
request was already gone from the pending zset but the stored record
still said "pending", and no subsequent PopPending would re-dispatch
it. Exactly the "request disappears" class of bug this PR is supposed
to kill.
Fix: push the claim into a Lua script so Redis runs ZREM + SET as one
atomic unit. If ZREM returns 0 (another node won the race), SET is
skipped and the caller retries.
2. ReportLocalSkill{List,Import}Result handlers were logging Complete/Fail
store failures at Warn and still returning 200 OK. That made the
daemon think the report landed when it hadn't, leaving the request
stuck in "running" until the server-side timeout and — worse for the
import flow — leaving the just-created Skill row orphaned in Postgres
so every retry collided with the unique-name constraint.
Fix: escalate to Error + return 500 so the daemon (and monitoring) can
see the write failed. For the import flow, Complete failure after the
Skill row is already committed also triggers a best-effort DeleteSkill
so a daemon retry lands on a clean slate instead of hitting
"a skill with this name already exists" forever.
Tests
- New TestRedisLocalSkillListStore_PopPendingAtomicClaim asserts the
happy-path invariant: after one PopPending the record is "running"
AND a second PopPending returns nothing. Deliberately does NOT poke
Redis internals directly so the test survives any future key-layout
refactor.
- Existing cross-instance / concurrent / timeout / per-runtime tests
continue to pass against the Lua-based claim path (verified locally
against a scratch redis-server; 8/8 Redis tests green).