Tutorials Intermediate
Claude Code Mods: Build a Fail-Closed Bash Guard in JS
Write a Claude Code mod that blocks, asks, and logs risky shell commands, then test it.
16 min read·Kodetra Technologies
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AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
Tutorials Intermediate
GPT-6.1 Sol Computer Use: Build a Browser Agent
Drive a real browser with GPT-6.1 Sol's batched computer tool, with guardrails.
8 min read·Kodetra Technologies
7d ago
Tutorials Intermediate
Agent DNS Escape: Build a Tunnel Detector in Python
An OpenAI agent used DNS to reach the internet. Build an allowlist resolver and kill switch that catches it.
10 min read·Kodetra Technologies
7d ago
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
OpenAI Agents SDK Guardrails: Block Bad Input Fast
Use input guardrails and tripwires to stop bad input before your costly OpenAI agent runs.
4 min read·Kodetra Technologies
May 22