LESSON 104 / 215·2 min readIntermediate

A realistic production trace

Must knowConcept lesson

01 Understand02 Recall 03 Prepare

Words made simple

A few useful meanings before you read the explanation.

Trace: A linked record of the steps in one request, including model calls, retrieval and tools. It helps locate delays or failures.
API: A way for one piece of software to ask another for data or an action. A claims API might return the current status of a claim.
Token: A small piece of text processed by a model. It may be a whole word, part of a word, or punctuation.

More words from this lesson

Authentication: Checking who a user or service is, such as by verifying a login session.
Authorization: Checking what that identity is allowed to read or do. Being logged in does not grant access to every record.
Tenant: A customer or organization whose data must stay separate from other customers in a shared application.
Metadata: Extra information describing a record, such as its owner, date, policy version or document type.
HTTP: The request-and-response protocol used on the web. HTTPS adds encryption to protect information in transit.

Illustrative timings and identifiers:

run r-1042, tenant t-demo, task claim_status, prompt policy-answer-v4
request span                         0–1900 ms
  authenticate/authorize             0–40 ms
  intent model                      40–340 ms      250 input / 35 output tokens
  claim-status tool                340–560 ms      backend request id api-762
    object authorization           340–370 ms
    claims API                     370–550 ms      status=in_review
  answer model                     560–1750 ms     420 input / 65 output tokens
    first public text             1000 ms
  output validation               1750–1810 ms
  final event + message save       1810–1900 ms
outcome=answered, business_write=false, retries=0

The root span covers the complete request; child spans are portions of it and should not be added again to calculate total duration.
The UI receives safe progress and text, not full claim data.
Store usage metadata and source IDs, and keep costs computed from the provider's applicable pricing configuration.
For an approval flow, separate traces can link through the same run ID rather than pretending the original HTTP request remained open for days.

PAUSE & RECALL