# agent

Opus 4.5 went from 42% to 95% on CORE-Bench without any change to the model. What changed was a broken test and an overly restrictive harness. The part of Anthropic's agent evals guide most worth reading is its string of cases where the score lied, plus the advice it keeps coming back to: read the transcripts before you trust the number.

Claude Tag, Anthropic’s second-generation Claude in Slack, launched in June 2026. Each thread is a persistent work session anyone in the channel can steer. Its sandbox evaporates and never holds credentials—the security baseline for building our own.

Claude Tag officially supports only Slack. To get an on-call AI assistant on LINE, build one: run OpenClaw on a VPS, let its gateway receive messages from LINE’s cloud, and have the agent reply. Here’s the reusable skeleton, three security must-haves, and why freedom brings responsibility.

Vaibhav Srivastav's Codex prompt is interesting because it describes an agent maintenance loop: look back at recent work, find repeated workflows, and package only high-confidence patterns into Skills, automations, or subagents. It is agent dreaming: turning busy work into capability.

LLMs are not gods, and they are not just tools. They are more like DOTA teammates: great at last-hitting, occasionally great at feeding. The human job is not to fight AI for the same lane, but to cover taste, map awareness, context ownership, and strategic judgment.

A context window is a model's day: how many lessons, messages, tool results, and task events Ryland can experience before sleep, compression, or collapse.

A Tsinghua Shenzhen team proposes Natural-Language Agent Harnesses: move agent control logic from code into structured language executed by an IHR runtime. Harnesses can reshape behavior, but more structure does not always mean better results.

Artificial Analysis launches AA-AgentPerf, a hardware benchmark that uses real coding agent trajectories instead of synthetic queries. It allows production optimizations, measures per-accelerator/per-kW/per-dollar efficiency, and scales from single cards to full racks.

Anthropic launches Claude Code Channels with native Telegram and Discord support, turning Claude Code into a 24/7 always-on AI agent. VentureBeat calls it the OpenClaw killer.

Claude Computer Use sparked huge excitement, with many claiming AI will fully replace human workers. But the original author points out that while AI can handle technical operations, it can't replace human judgement and cultural context. The real moat is still deep domain knowledge.

Andrew Ng partners with Oracle on a new course teaching you how to build persistent cross-session memory systems for AI Agents, solving the frustrating problem of agents 'forgetting everything' after each conversation.

Andrew Ng announces a new course on A2A (Agent2Agent Protocol). With IBM's ACP merging in, A2A is becoming the industry standard for agent-to-agent communication, letting you connect Google ADK and LangGraph agents seamlessly.