Tutorials Intermediate
Claude API 2026-10-21: Build a Migration Scanner in Python
Claude SDK 2.0 and API 2026-10-21 break old code. Scan for every 400 and TypeError first.
14 min read·Kodetra Technologies
17d agoGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
Tutorials Intermediate
MCP Events: Build a Signed-Webhook Server in Python
OpenAI shipped MCP Events at DevDay. Build, sign and harden a server that pushes events to agents.
13 min read·Kodetra Technologies
Oct 5
Tutorials Intermediate
OpenAI Agents API: Run a Data Audit in a Cloud Sandbox
Run a durable Codex-powered agent in OpenAI's hosted sandbox with a custom tool and file outputs.
14 min read·Kodetra Technologies
Oct 1
Tutorials Intermediate
MCP Auth Without DCR: Ship a CIMD Client Document
MCP 2026-07-28 deprecates DCR. Host a metadata document and let its URL be your client_id.
16 min read·Kodetra Technologies
Aug 25
Tutorials Intermediate
Bridge MCP and A2A v1.0: One Agent, Two Protocols
Build a Python agent that speaks A2A v1.0 outward and calls MCP tools inward.
12 min read·Kodetra Technologies
Aug 25
Tutorials Intermediate
AWS Dogwood: Temporal Guardrails for Agent Tool Calls
Gate agent tool calls on what happened before, not one request at a time.
11 min read·Kodetra Technologies
Aug 19
Tutorials Intermediate
Stop MCP Tool Poisoning: Scan and Pin in Python
Build a Python gate that scans MCP tool descriptions for hidden injections and pins them by hash.
9 min read·Kodetra Technologies
Aug 12
Tutorials Intermediate
Agent Plugins 1.0: One Bundle, Six AI Clients
Package your Agent Skills and MCP servers into one portable plugin that runs across six AI clients.
11 min read·Kodetra Technologies
Aug 11
Tutorials Intermediate
MRTR: Human-in-the-Loop MCP Tools Over Stateless HTTP
Pause an MCP tool mid-call to confirm with the user, on the new stateless 2026-07-28 protocol.
10 min read·Kodetra Technologies
Aug 11
Tutorials Intermediate
MCP Apps: Ship Interactive UI From Your MCP Server
Use the new MCP Apps extension to return interactive widgets from a tool call, rendered in chat.
10 min read·Kodetra Technologies
Jul 29
Tutorials Intermediate
MCP Tasks: Long-Running Tool Calls Without Timeouts
Build an async MCP tool that returns a durable task handle and poll it to completion in Python.
9 min read·Kodetra Technologies
Jul 28
Tutorials Intermediate
Context Compaction: Run Claude Agents Past 200K Tokens
Use Anthropic's compact-2026-01-12 beta so long agentic loops survive past the 200K context window.
11 min read·Kodetra Technologies
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