Config Externalization Over Env Fallback

Kind: algorithm

Record: algorithms:no-env-fallback

Canonical: Algorithms

Closure: Dependencies in load order

Replace env-var-or-default reads with a validated config loaded at boot that fails fast on missing values.

Listed in Algorithm contracts, after Least Privilege Over Broad Privilege and before Profile-First Over Unmeasured Optimization.

Domain

• Architectural Rules

Tier

• leaf

Composes

• Security Core
• Resource Core

Math type

• Logic

Linked from

• Architectural Clusters
• The mathematics
• Domain tiers