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ACONFIG-101 · Make settings explicit

Inventory runtime settings with owners and restart requirements

Practice briefTaskFoundational

Operators cannot tell whether changing a timeout requires a worker restart or takes effect on the next request.

Focused work estimate
1h 30m + prerequisites
Priority in the scenario
Medium
Engineering practice
Configuration management · Technical documentation

Estimated field mix

  • Platform engineering100%

Field percentages are editorial estimates of the ticket's engineering focus. They total 100%; they are not measured time, proficiency scores, or ownership evidence.

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Project context

A fictional internal reporting platform changes feature and timeout settings through environment edits. Partial rollouts leave API and worker processes interpreting different values.

Setup prerequisites

  • Create local API and worker configuration consumers.
  • Use fabricated settings without secrets.

Preceding work

No earlier ticket is required. Complete the project setup above.

Acceptance criteria

  • List type, owner, default and adoption boundary for each setting.
  • Separate secrets from nonsecret runtime configuration.
  • Mark unknown behavior as unresolved before rollout.

Implementation constraints

  • Use a small fictional inventory of eight settings.

Verification to include

  • Trace one dynamic setting through its read boundary.
  • Identify a startup-only setting and prevent a dynamic edit.

Deliverables

  • Configuration inventory and adoption contract

Rollout and recovery

Review the inventory before exposing edits; keep unresolved settings read-only.

Value of the work

For the engineer: Practice configuration contracts, compatibility and failure recovery.

For the team: Review controlled configuration delivery with inspectable blast radius.

Evidence boundaries

Outcome Evidence: Tests, patches, and runbooks are requested deliverables. They become Outcome Evidence only through a qualified Mission and immutable Evidence IDs.

Ownership Evidence: Independent adaptation must be observed under a declared verification policy and cite immutable Evidence IDs. Completing a planning ticket establishes no Ownership Evidence.