Tutorials Advanced
OpenAI Multi-Agent Beta: Ship an Agent Tree in Python
Enable multi_agent on the Responses API, trace every subagent, and dodge the hosted-call trap.
14 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 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
Today
Tutorials Intermediate
Gemini Agent Hooks: Deny Risky Tool Calls in Python
Intercept your Gemini agent's sandbox tools with pre-execution hooks that allow, deny, and audit.
11 min read·Kodetra Technologies
Today
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
Yesterday
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
Yesterday
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
3d ago
Tutorials Intermediate
OpenClaw Secrets: Give Agents Keys They Never See
Use OpenClaw 2.0's secrets tool and egress proxy so agents use API keys without ever reading them.
11 min read·Kodetra Technologies
8d ago
Machine Learning Intermediate
Unmask a Stealth LLM: Fingerprint Any Model API
Port the Ox Alpha probe kit to Python: normalized token counts, error DNA, ranked verdict.
14 min read·Kodetra Technologies
12d ago
Tutorials Intermediate
GLM-5.3-Flash: Let Your Agent See the UI It Built
Build a render-screenshot-critique loop with GLM-5.3-Flash native vision, for pennies a run.
12 min read·Kodetra Technologies
13d ago
Tutorials Intermediate
Anthropic SDK v1.0: The Silent httpx2 Mock Trap
Upgrade to anthropic>=1 without your respx mocks and OTel traces going quietly blind.
13 min read·Kodetra Technologies
13d ago
Tutorials Advanced
Claude Browser Toolset: Ref Targeting Over Pixels
Wire browser_toolset_20260801 to Playwright: ref targeting, batched turns, halt-on-failure.
15 min read·Kodetra Technologies
18d ago
Tutorials Intermediate
Claude Skills API Is GA: Ship a Versioned Skill
Upload, version and pin a custom Agent Skill on the Claude API now that /v1/skills is GA.
12 min read·Kodetra Technologies
19d agoPage 1 of 8