flowchart TB subgraph TOP["Bug 1: Smoke Harness Decorative Check"] direction TB T1["Run check: query store, grep result"]:::ok T2["grep fails to match
a real problem exists"]:::ok T3["&& chaining means set -e does not apply here"]:::break T4["Script prints checkmark anyway"]:::ok T5["Exit code 0: harness reports success"]:::ok T1 --> T2 --> T3 --> T4 --> T5 end subgraph BOT["Bug 2: Mastery Path Disconnection"] direction TB B1["BKT computes P(L) update"]:::ok B2["Aggregation query does not select a mastery column"]:::break B3["Materialized rollup does not compute one either"]:::ok B4["Store has the column, nothing writes to it"]:::ok B5["Graph write sets mastery from a value never produced"]:::ok B6["Result: mastery score is null, no error raised"]:::ok B1 --> B2 --> B3 --> B4 --> B5 --> B6 end classDef ok fill:#2a9d8f,stroke:#1f7a6f,color:#fff,font-size:12px classDef break fill:#e9a23b,stroke:#b8791f,color:#222,font-size:12px linkStyle default stroke:#999,stroke-width:2px