Checklist
Version the configuration that changes behavior
If configuration can change production, it deserves a history as serious as code.
When it fits
- Runtime behavior can change without a code deployment because configuration is mutable.
When to avoid it
- Secrets may need separate protected storage; version references rather than exposing sensitive values in ordinary configuration history.
Checklist
- Behavior-affecting configuration has a stable version or change identity.
- Changes pass validation before promotion.
- The running version can be observed for each relevant environment.
- A previous known-good version remains recoverable.
- The configuration history names what changed and why.
Why it matters
Store important configuration as versioned data with validation, change identity and a known previous version. Record which version each running environment uses. Make promotion and rollback explicit rather than editing values in place without a trace. This turns 'nothing changed in code' from a dead end into an inspectable statement.
An example
Version an AI agent's tool policy, thresholds and prompt configuration together so a behavior shift can be tied to a concrete configuration snapshot.
Check your result
Given an incident timestamp, you can identify the exact configuration version that was active.
Keep this limit in mind
- Secrets may need separate protected storage; version references rather than exposing sensitive values in ordinary configuration history.
Connected ideas
Useful withDetect configuration drift instead of assuming sameness
Evidence and sources
Current AWS Agentic AI guidance recommends centralized versioned configuration with validation so behavior can be traced and rolled back by version.
Centralization can create its own failure domain; configuration systems still need redundancy and access control.
AGENTREL08-BP01 Establish consistent configuration management practices · Desired outcome; configuration versioning and validation