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
17d agoGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
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
27d 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
27d 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
28d ago
Tutorials Intermediate
EmbeddingGemma 2: Build Text and Image Search in Python
Run Google's new open multimodal embedder locally and search text, images and video with one index.
10 min read·Kodetra Technologies
Oct 9
Tutorials Intermediate
Reflection Beam: Get Agent-Ready Before the Weights Drop
Build an effort-routing tool-loop client for Beam's OpenAI-compatible API and size the self-host bill.
8 min read·Kodetra Technologies
Oct 6
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
Oct 1
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
Sep 30
Tutorials Intermediate
Sonnet 5.5 Drops tool_choice: Build a Strict Tool Router
Forced tool use now 400s on Claude Sonnet 5.5. Replace it with strict tools and a retry guard.
9 min read·Kodetra Technologies
Sep 28
Tutorials Intermediate
Grok 4.7 Stateless Agents: Replay Encrypted Reasoning
Build a store=false Grok 4.7 tool agent that keeps its reasoning, hits cache, and escalates effort.
13 min read·Kodetra Technologies
Sep 25
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
Sep 8
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
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