aq134_shield_five_tier_cache_stampede)Shields origin stores from thundering-herd stampedes and upstream brownouts via SingleFlight coalescing, 24h Stale-If-Error snapshots, and XFetch probabilistic refresh.
SingleFlight waiter broker, XFetch log-random trigger & HTTP 206 snapshot server (0 calls)
Substrate: file_cas · p99 Claim Target: ≤ 7 ms · Phase: 129 - 140 Bijective Edge Router, P2C Hash Ring, HOT Leases, 9->N Rubrics, System-1 & 3-2-1-1-0 WORM
High-value snapshot warmer & TTL policy optimizer
5-Role Component Pod: 0-Call Slot / Solver + OpenSearch / Split-Supervisor (≤4k tok) / Diagnostic Repair + Twin Shim / CPOP + Sister Distiller.
category_context_schema_tuningCommit Invariant: Audits context waste and escalation rates to tune category_governance profiles.
Architectural Problem Solved: Enforces durable cooperation, psychometric frontier tracking, and self-enriching multi-facet catalog evaluation.
POST https://api.teleon.dev/v1/tenants/:tenantId/queues/aq134_shield_five_tier_cache_stampede/enqueue
{
"queue_category": "category_context_schema_tuning",
"priority": 80,
"payload": { "stage": "134", "objective": "5-Tier Cache Outage Shield" }
}