A conference talk transcript arguing that context (prompts, agent instructions, specs, documentation) is becoming as important as code itself, and should be treated with the same engineering rigor. The speaker proposes a 'Context Development Life Cycle' mirroring CI/CD: generate context, evaluate/test it (using linting, LLM-as-judge, and end-to-end evals), distribute it via registries and package managers, and observe its performance in production. Key themes include testing agent rules for correctness and drift, managing context dependencies and security scanning, organizational ownership of context, and new developer roles as 'agent managers.' The talk also covers harness engineering, context retros, and metrics like agent hop count as a measure of context quality.