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
YesterdayGuides
AI Guides for Builders
How-to content for builders, indie hackers, and AI engineers. Less theory, more shipped code.
Tutorials 
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
5d ago
Tutorials Intermediate
Qwen3.8-Flash-Next: Preserved Thinking, Cheaper Agents
Qwen keeps reasoning across every turn by default. Exploit it, or pay for it.
11 min read·Kodetra Technologies
5d 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
6d 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
6d ago
Machine Learning Intermediate
Agent Lightning v1.0: RL Data From Any Agent, No GPU
Capture real RL training trajectories from any agent using Agent Lightning's CPU-only Gateway.
14 min read·Kodetra Technologies
6d 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
11d 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
12d ago
Machine Learning Advanced
Detect AI Text: Build a SynthID Watermark Scorer
Score any text for Claude-style SynthID watermarks in Python, with real measured g-values.
12 min read·Kodetra Technologies
13d ago
Tutorials Intermediate
Cloudflare Kitesurf: Cheap Page Reads for AI Agents
Wire Cloudflare's agent-first browser into a Python LLM tool loop, with a Chromium fallback.
1 min read·Kodetra Technologies
13d ago
Tutorials Intermediate
Migrate to Gemini 3.7 Flash: The minimal Thinking Trap
Preflight your configs for gemini-3.7-flash: 5 breaking changes, a validator, real cost math.
12 min read·Kodetra Technologies
14d ago
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
19d agoPage 1 of 10