LLMOps Advanced — 050: trace index lag on `Vector index stewardship` — memo `488990 [50]`

Lesson 050: Vector index stewardship

Focus

Swap placeholder nouns for your internal service names immediately. Token Vector index stewardship:50 keeps neighbouring lessons differentiable.

Key ideas

• Thread: Vector index stewardship · drill v10 · spin 1518.
• Habit: attach a trace_id to every completion you would paste into an ops dashboard.
• Guardrail: add one RACI bullet for prompt or index changes before tomorrow's standup.

Deep dive notebook

Synthetic drill artefacts

Tool contract rehearsal

{
  "name": "reindexSlice",
  "arguments": { "corpus": "corpus-4", "dry_run": true }
}

Preconditions: index lag < 21h
FAILURE: page platform if lag > SLA without VP memo.

Practice

Practice Simulate degraded retrieval once; capture user-facing fallback copy. — 50 Bump 16.