Architecture foundations
Claude architecture skills: design systems that can explain their decisions.
Strong Claude architecture is not a single prompt or framework. It is the ability to make the right trade-off across context, tools, safety, autonomy, evaluation, and cost—then make that decision observable to people who need to trust it.
Six core Claude architecture skills
Frame decisions clearly
Translate an ambiguous request into a goal, success evidence, constraints, and an explicit handoff when the system lacks authority or information.
Design context deliberately
Select the smallest current evidence set that changes the next decision. Preserve provenance, manage freshness, and keep untrusted data separate from instructions.
Build narrow tool contracts
Give tools one clear purpose, validated inputs, bounded permissions, observable outputs, and recoverable failure behaviour.
Control autonomy
Use deterministic workflows when paths are known. When judgment is needed, bound the agent loop with budgets, stop conditions, and escalation.
Treat safety as architecture
Reduce blast radius with least privilege, approval before consequential actions, validation at trust boundaries, and a safe pause path.
Evaluate the trajectory
Assess the full execution—not just fluent output. Test tool selection, evidence use, state changes, safety boundaries, recovery, latency, and cost.
How to build the skill
- Read the primary source for the feature or pattern you are considering.
- Write down the actual decision, constraints, and possible failure modes in a scenario.
- Choose the smallest architecture that makes progress safely and explain why the alternatives are weaker.
- Use fresh practice questions to verify that you can apply the principle when the keywords change.
Study each skill in depth
Primary source to verify
Anthropic: Building effective agents is a useful starting point for distinguishing deterministic workflows from agentic systems. Adapt the pattern to your own authority, safety, and evaluation constraints.
Turn the concepts into judgment.
Use original, scenario-based practice to build confidence across the full Claude architecture skill set.
Explore practice questions →