Tutorials Intermediate
TanStack AI 1.0: Approval-Gated Agents in Plain Node
TanStack AI hit 1.0. Build an agent whose refund tool pauses for approval, edits and denials.
12 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
Claude API 2026-10-21: Build a Migration Scanner in Python
Claude SDK 2.0 and API 2026-10-21 break old code. Scan for every 400 and TypeError first.
14 min read·Kodetra Technologies
Today
Tutorials Intermediate
Agent Skills Go Open: Write One That Runs Anywhere
Anthropic gave Agent Skills to the Agentic AI Foundation. Build, lint and load a portable skill.
9 min read·Kodetra Technologies
Today
Tutorials Intermediate
DeepSeek Flash-1017: Benchmark Cost per Solved Task
Measure what DeepSeek V4.1-Flash-1017 really costs per solved task at each reasoning effort.
12 min read·Kodetra Technologies
Yesterday
Tutorials Intermediate
GitSpawn: Scan Untrusted Repos Before Your AI Agent Does
A repo's .git/config can run code the moment a coding agent calls git. Build a preflight scanner.
11 min read·Kodetra Technologies
9d ago
Tutorials Intermediate
Preserved Thinking: Build a Prefix-Drift Guard in Python
Claude now 400s agents that edit history. Catch the edit before the API does.
13 min read·Kodetra Technologies
10d ago
Tutorials Intermediate
Late-Interaction Retrieval With Perplexity's New Embeddings
Build a ColBERT-style MaxSim search over text and images with pplx-embed-v2-late, verified code included.
10 min read·Kodetra Technologies
10d ago
Tutorials Intermediate
Muse Wonder 1.0: Build a Cited Research Agent in Python
Meta's new Muse Wonder API: web-search citations, a cost meter and an audit pass.
11 min read·Kodetra Technologies
10d ago
Tutorials Intermediate
Agent Tool Broker: Identity, Audit Log, Kill Switch
Build an out-of-model tool broker in Python: per-agent identity, scoped policy, tamper-evident logs.
10 min read·Kodetra Technologies
11d ago
Tutorials Intermediate
Blocked Is an Alert: Egress Gates for Claude Agents
Build a Python egress gate that stops the four workarounds Anthropic saw Claude use on live sites.
12 min read·Kodetra Technologies
11d ago
Tutorials Advanced
Poppy Protocol: Build a Personal Agent Client
Meta and Sierra's draft agent standard, in Python: discovery, DPoP sessions, and replay tests.
13 min read·Kodetra Technologies
13d ago
Tutorials Intermediate
Haiku 5.5 Triage: Measure Effort, Then Route by Cost
Benchmark Haiku 5.5 effort levels on your own tickets, then route cheap-first.
10 min read·Kodetra Technologies
16d agoPage 1 of 16