GenAI Intermediate — 019: quantify hallucination fallout on `RAG design trade spaces` — memo `134849 [19]`

Lesson 019: RAG design trade spaces

Focus

Prefer explicit failure rehearsals over aspirational wording. Token RAG design trade spaces:19 keeps neighbouring lessons differentiable.

Key ideas

• Thread: RAG design trade spaces · drill v9 · spin 126661.
• Habit: pair every model utterance with a trace_id you could paste into Grafana.
• Guardrail: write one RACI bullet referencing this lesson tomorrow.

Deep dive notebook

Synthetic drill artefacts

Token CFO scratchpad

- prompt_budget_tokens: 1406
- completion_budget_tokens: 860
- cache_signature: `2702`

Hypothesis: halving completions moves P95 `4`%; record actuals.

Practice

Practice Pair with multilingual SME review—even if hypothetical. — 19 Bump literals mindset by 13.