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226 postsMechanistic View Reveals How Bias Lives Inside LLM Judges
Study shows LLM-as-judge bias is encoded in activation geometry, enabling causal steering and better failure prediction than text-based methods.
"Hallucination" Isn't One Bug. It's Three, and Only One Is Fixable
Hallucination isn't one failure mode — it's three. A test to tell them apart, why benchmarks reward bluffing, and what a 2026 prediction experiment showed.
The hidden lock inside ArrayPool<byte>.Shared that cost 20% CPU
How live CPU profiling and BCL decompilation exposed a hidden monitor lock inside ArrayPool<byte>.Shared causing a 20% CPU regression.
CommitBrief — AI code reviews, right in your terminal
A provider-agnostic, local-first CLI that reviews your staged changes, a historic range, or a whole GitHub pull request. Zero telemetry, no server. Free and open source.
commitbrief.comWhen an LLM's Training Data Expires: Fixing a Car Pricing Engine
An AI car-pricing engine broke because its LLM recalled stale exchange rates, revealing risks of mandatory retrieval and cache provenance in LLM apps.
Context Bombs: Using AI Safety Guardrails to Halt Rogue Agents
Tracebit research shows context bombs hidden in canaries can trigger AI safety guardrails, cutting autonomous attacker success rates by roughly 90%.
ZVec's optimize() Can Silently Erase Crash-Recovered Vector Data
Testing shows ZVec's optimize() can silently discard crash-recovered vector data with no warning, exposing a hidden risk in embedded vector stores.
Why Coding Agents Improve More From Harness Design Than Models
LangChain pushed a coding agent to Terminal-Bench's top 5 without changing the model — the gains came entirely from harness design.
Armin Ronacher: AI coding advances even as teams lose shared understanding
Armin Ronacher compares AI-driven vibe coding to the Tower of Babel, showing how coding agents erode teams' shared technical understanding.
Qwen wrote its own app: why QuotePilot still needs a human approval gate
QuotePilot: an app Qwen models largely wrote and run, built around Decimal-based pricing and a mandatory human approval gate.
Fine-Tuning Qwen2-VL on AMD MI300X: The ROCm Pitfalls Docs Skip
A development log on fine-tuning Qwen2-VL for blockchain graph classification on AMD MI300X, detailing real ROCm setup and debugging friction.