Designing Claude Tool Interfaces and Execution Contracts
Claude tool interfaces should be treated as production API contracts, not as a thin list of functions.
Delegation and Subagent Orchestration for Claude Systems
Delegate to a subagent when a focused, independently bounded piece of work would otherwise overload the primary agent's context or mix responsibilities that need different tools and permissions.
Claude Agent Loops, Sessions, and Runtime Controls
An agentic design becomes operable only when its runtime is bounded. In the Claude Agent SDK, an agent loop evaluates the current state, requests tools when needed, incorporates their results, and eventually returns a final result.
Browse the journal
All articles
208 published articles
Designing Claude Tool Interfaces and Execution Contracts
Claude tool interfaces should be treated as production API contracts, not as a thin list of functions.
Delegation and Subagent Orchestration for Claude Systems
Delegate to a subagent when a focused, independently bounded piece of work would otherwise overload the primary agent's context or mix responsibilities that need different tools and permissions.
Claude Agent Loops, Sessions, and Runtime Controls
An agentic design becomes operable only when its runtime is bounded. In the Claude Agent SDK, an agent loop evaluates the current state, requests tools when needed, incorporates their results, and eventually returns a final result.
Choosing Single-Shot, Workflow, and Agentic Claude Architectures
The right Claude architecture is usually the least autonomous one that can complete the job safely. Start with a single model call when one bounded response is enough.
CCAR-F Scope and the Claude Architecture Decision Map
The public scope of Claude Certified Architect - Foundations (CCAR-F) is best understood as an architecture map, not as a collection of isolated product features.
Choosing Claude API Workload Modes for Vision, Thinking, and Batch Processing
Choose a Claude API workload mode in three steps. First, decide whether the request needs text-only or image input.
Reliable Claude API Streaming, Asynchronous Work, and Error Handling
A Claude API client should process a streaming response as a state machine and recover from failure only after identifying the layer, the last confirmed event, and whether another attempt is safe.
Claude Messages API and SDK Integration Foundations
A basic Claude Messages API integration has three boundaries.
Claude Application Architecture Across Interfaces and Content Boundaries
A sound Claude application architecture gives each layer one explicit responsibility. The application owns business rules, trusted and untrusted input separation, conversation state, schemas, validation, authorization, and side effects.
Turning Claude Application Requirements into a Systems Life Cycle
An engineering team should translate a Claude application idea into a maintainable system through four connected artifacts: a measurable outcome, a testable requirement baseline, an explicit responsibility map, and a staged life cycle…
Claude Certified Developer – Foundations: Certification Overview and Developer Skills
Claude Certified Developer – Foundations validates a developer's foundational ability to design, integrate, operate, evaluate, optimize, and secure production-oriented applications, agents, and workflows built with Claude.
200-301 CCNA v1.1 Skills Roadmap, Labs, and Documentation Plan
A useful 200-301 CCNA v1.1 plan combines the official blueprint, current Cisco documentation, repeatable labs, and evidence-based review.