Engineering Dynamic Context: The Claude Code Architecture That Survives Production

Dump your enterprise codebase into a single Claude Code prompt and the system collapses; the discipline that prevents that collapse is exactly what Domain 3 of the CCA Foundations exam tests.

Summary: Claude Code only works at scale if you stop treating it like a developer chat and start engineering its context environment. This article walks the six-layer architecture that Domain 3 of the CCA Foundations exam tests: the five-tier CLAUDE.md hierarchy with its on-demand subdirectory loading, custom slash commands and skills with the three frontmatter keys (context: fork, allowed-tools, argument-hint), glob-scoped path rules, plan mode versus direct execution, four iterative refinement techniques, and headless CI/CD integration with -p, --output-format json, and --json-schema.

The Token Exhaustion Collapse

If you attempt to dump an entire enterprise codebase into a single LLM prompt, the system will collapse. The mechanism is token…