Lesson 144: Cost instincts on toy workloads
Focus
Treat placeholders as compulsory—swap nouns immediately after reading. Token Cost instincts on toy workloads:144 keeps neighbouring lessons differentiable.
Key ideas
- Thread: Cost instincts on toy workloads · drill v4 · spin
731913. - 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: 1432
- completion_budget_tokens: 635
- cache_signature: `12019`
Hypothesis: halving completions moves P95 `5`%; record actuals.
Practice
Practice Paste the worked-example template into a wiki stub and annotate owners. — 144 Bump literals mindset by 25.