Tutorials Intermediate
A2A 1.0: Sign and Verify Agent Cards Before Delegating
Publish a JWS-signed A2A v1.0 Agent Card in Python and refuse any card you cannot verify.
11 min read·Kodetra Technologies
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How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
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
2d ago
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
9d ago
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
10d ago
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
10d ago
Tutorials Intermediate
Gate Every PR With Claude Code Security Reviews
Wire Anthropic's /security-review and GitHub Action to catch SQLi, XSS and RCE before merge.
8 min read·Kodetra Technologies
15d ago
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
23d ago
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
24d ago
Tutorials Intermediate
Build a Prompt-Injection Eval for Claude Sonnet 5 Agents
Sonnet 5 claims better hijack resistance. Here's how to measure it yourself.
10 min read·Kodetra Technologies
Jul 2
Tutorials Intermediate
Code Mode for MCP: Let Claude Write Code to Call Tools
Cut MCP agent context up to 99% by exposing tools as a code API the model calls in code.
9 min read·Kodetra Technologies
Jun 25
Tutorials Intermediate
Stateless MCP in Python: The 2026-07-28 Handle Pattern
Port your MCP server to the stateless 2026-07-28 spec using the explicit-handle pattern.
10 min read·Kodetra Technologies
Jun 25
Tutorials Advanced
Harden Your Local MCP Server Against AutoJack RCE
AutoJack turned a local MCP server into RCE. Harden yours with origin checks, auth, and allowlists.
9 min read·Kodetra Technologies
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