Tutorials Intermediate
OpenAI 12h Cache: Split Agent Prompts Into Two TTLs
Use OpenAI's new 12-hour prompt cache for stable context, 30 minutes for the rest.
9 min read·Kodetra Technologies
13d agoGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
Tutorials Intermediate
Gemini 4 Argon Long Decode: 200K Tokens, One Request
Use Argon's background long decode to generate 1M tokens of output, with cost math.
9 min read·Kodetra Technologies
26d ago
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 Advanced
Opus 5.5 Background Compaction: Agents That Never Stall
Summarize long Claude Opus 5.5 sessions in a background thread and swap the result in, no pause.
15 min read·Kodetra Technologies
Sep 23
Tutorials Intermediate
OpenViking: Agent Memory You Can ls and grep
Build browsable, self-evolving agent memory with OpenViking's viking:// filesystem in Python.
11 min read·Kodetra Technologies
Sep 1
Tutorials Intermediate
Grok 4.6 Agents: Dodge the 200K Price Cliff
Keep long-running Grok 4.6 agents cheap: cache keys, token budgets, and the 200K cliff.
10 min read·Kodetra Technologies
Aug 14
Tutorials Intermediate
Build a Self-Verifying Agent With Grok 4.6 in Python
Grok 4.6 self-verifies during long agent runs. Build a Python coding agent that checks its own work.
9 min read·Kodetra Technologies
Aug 13
Tutorials Intermediate
Muse Code: Async Agents That Survive a Crash
Install Meta's Muse Code, run async agents, and recover long jobs from its crash-safe log.
10 min read·Kodetra Technologies
Aug 13
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
DeepSeek V4-Flash KV Cache: Cut Input Costs 50x
Structure prompts so DeepSeek's disk cache hits, and pay ~50x less on repeated input tokens.
9 min read·Kodetra Technologies
Aug 5
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
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