New15 min read
Tool Calling Under the Hood: Claude Messages vs OpenAI Responses
How tool calling works on the wire: JSON schema tools, parallel calls, tool_choice, strict mode and streaming deltas in Claude Messages vs OpenAI Responses.
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TOOL USE
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Claude API Inline Tool Definitions: Add Tools Mid-Conversation
Claude API inline tools beta: define, reshape or upgrade a tool mid-conversation with one system message and keep the prompt cache. Code included.
•11 min read
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12 min read
Tool Use in the Claude API: Production Patterns for Reliable Agents
Master tool use in the Claude API. Schema design, retry logic, multi-step loops, and the failure modes that only show up at 10k calls a day.
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Composio 101: Give Your AI Agent Access to 500+ Apps
Composio connects AI agents to Gmail, GitHub, Slack and hundreds more apps with auth handled for you. How to set it up and build real cross-app workflows.
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