Don't Carry Search Results Twice: Trimming Consumed Blocks with response_inclusion
When an agent runs dynamic filtering, output tokens balloon because the raw search-result blocks a code execution call already consumed get echoed back into the response. Here is when response_inclusion: excluded is safe to use, when you must keep full, with implementation and a decision table.
Compressing Tool Results in Claude Agents — Aggregating Large Responses Without Bloating Context
When a database returns 8,000 rows, a scrape returns 200KB of HTML, or a file read returns several megabytes, dropping the raw payload into your Claude tool result wrecks both cost and quality. This guide presents a three-layer compression architecture — schema projection, summarization, and reference handles — with TypeScript examples from a production agent pipeline.
Debugging Claude API Tool Use Schema Errors: 3 Patterns I've Hit and How to Fix Them
A practical guide to diagnosing Claude API Tool Use errors—from schema definition mistakes to invalid_tool_use blocks and Claude ignoring your tools entirely. Based on real implementation experience.
Type-Safe Claude API Tool Calling with Zod: Patterns for TypeScript Developers
How to implement Claude API tool calling with TypeScript and Zod for full type safety. Covers schema-to-API conversion, runtime validation, and three common pitfalls with practical code examples.
Claude API × Python in Practice: Building an AI Assistant with Tool Calling and Streaming
A practical guide to combining Claude API's Tool Use and Streaming in Python. Build a working AI assistant with real tool execution, complete source code included, plus a breakdown of the tricky parts that trip up most developers.
Let Claude Diagnose Its Own Tool Errors — Building a Self-Correction Loop with the Anthropic API
Learn how to handle Tool Use failures gracefully by feeding error details back to Claude using the is_error flag, enabling self-diagnosis and automatic retry. Includes working Python code and production antipatterns to avoid.
Building a 'Think-and-Search' AI Agent — Claude API Extended Thinking × Tool Use
A deep dive into combining Claude API Extended Thinking and Tool Use. Covers frequent errors, a complete research agent implementation in Python, plus cost estimation, timeout design, and error recovery for production use.
How to Fix the "Tool Result Could Not Be Submitted" Error in Claude
A practical guide to diagnosing and fixing the "tool result could not be submitted" error in Claude's tool use API, based on real development experience.
Claude API with Go: Production— Anthropic Go SDK, Concurrency, Tool Use & Microservice Integration
A practical guide to using Claude API with Go in production. Covers streaming with goroutines, concurrent Tool Use, rate limiting with channels, Gin/Echo integration, graceful shutdown, and Kubernetes deployment with working code examples.
Claude API Think Tool — Dramatically Improve Tool Call Accuracy with Interleaved Reasoning in Agentic Workflows
Master the Claude API Think Tool pattern. Learn the key differences from Extended Thinking, implement interleaved reasoning in agent loops, and apply production design patterns that improve tool call accuracy by up to 54%.
Building Automated Agentic Loops with Claude SDK Tool Runner
Learn how to use Claude SDK's Tool Runner and Tool Helpers to build automated tool-calling loops (agentic loops) with practical code examples in Python and TypeScript.
Claude API Real-time Multimodal Agent Architecture: Design Patterns & Implementation
Master building real-time multimodal agents combining Vision and Tool Use. Learn streaming pipelines, production error handling, and cost optimization patterns with TypeScript and Python examples.