Every prediction gets a name (step 7/7) · reading agent traces and telemetry

Checkpoint

One last thing before we move on. Same surface as a write step — but the lesson doesn't complete until this passes.

Last one — the full complaint desk. Two tickets came in overnight. One names a prediction that's in the log; the other names one that was served before logging was turned on.

Finish join_complaint(log, complaint) so it returns one string:

If a log row's prediction_id matches the complaint's: "<ticket> -> <prediction_id> (<model_version>, <latency_ms>ms, <output>)"
If no row matches: "<ticket> -> <prediction_id> not logged: undebuggable"

Expected output:

#5521 -> pred-000483 (churn-clf-v13, 388ms, will_churn)
#5544 -> pred-000999 not logged: undebuggable

Checkpoint

One last thing before we move on. Same surface as a write step — but the lesson doesn't complete until this passes.

Last one — the full complaint desk. Two tickets came in overnight. One names a prediction that's in the log; the other names one that was served before logging was turned on.

Finish join_complaint(log, complaint) so it returns one string:

If a log row's prediction_id matches the complaint's: "<ticket> -> <prediction_id> (<model_version>, <latency_ms>ms, <output>)"
If no row matches: "<ticket> -> <prediction_id> not logged: undebuggable"

Expected output:

#5521 -> pred-000483 (churn-clf-v13, 388ms, will_churn)
#5544 -> pred-000999 not logged: undebuggable

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Every prediction gets a name — step 7 of 7