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
6d agoGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
Tutorials Intermediate
Codex Security CLI: Gate PRs on High Severity
Scan a PR diff with OpenAI's Codex Security, cap the spend, and fail CI on high-severity bugs.
13 min read·Kodetra Technologies
6d ago
Tutorials Intermediate
OpenAI Ultrafast: Pay 6x Only When Latency Matters
A Python router that buys Ultrafast speed only where users wait, with fallback and cost tracking.
9 min read·Kodetra Technologies
6d ago
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
Gemini 3.8 Live: Build a Multilingual Voice Agent
Build a real-time voice agent with Gemini 3.8 Live Extended Thinking.
10 min read·Kodetra Technologies
11d ago
Tutorials Intermediate
GPT-6 Luna First, Sol on Demand: A Python Cascade
Send GPT-6 requests to Luna, validate the JSON, and pay Sol prices only when the checks fail.
13 min read·Kodetra Technologies
13d ago
Tutorials Advanced
Misalignment Monitoring: When OpenAI Halts Your Agent
Handle the 403 that stops a GPT-6 Astra agent and wire up safety.alert.created webhooks.
14 min read·Kodetra Technologies
28d ago
Tutorials Intermediate
GPT-6 Astra: Change Reasoning Effort Without Losing Cache
Use configuration_update to raise or lower Astra's reasoning effort mid-chat and keep cache hits.
11 min read·Kodetra Technologies
29d ago
Tutorials Intermediate
Async Tool Calls: Stop Your Agent Blocking on Slow APIs
Use async tool calls and a wait tool to keep your agent reasoning while tools run.
12 min read·Kodetra Technologies
29d ago
Tutorials Advanced
Steer GPT-6 Astra Mid-Turn Without Losing Its Work
Redirect a running Astra agent over WebSocket with response.steer, keeping finished work.
13 min read·Kodetra Technologies
Sep 5
Tutorials Intermediate
GPT-5.6 Persisted Reasoning: Reuse Thinking Across Turns
Use reasoning.context to reuse GPT-5.6's chain of thought across turns and cut redundant tokens.
9 min read·Kodetra Technologies
Jul 16
Tutorials Advanced
Clone GPT-Live: Full-Duplex Voice Agent That Delegates
Reproduce GPT-Live's full-duplex voice and background delegation using the GA Realtime API.
11 min read·Kodetra Technologies
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