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Anthropic deleted 80% of Claude Code's system prompt. No regression.

Anthropic deleted 80% of Claude Code's system prompt. No regression.

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2 min read
MCP 协议实现指南:从零构建生产级 AI 工具生态

MCP 协议实现指南:从零构建生产级 AI 工具生态

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7 min read
Claude Opus 5 leads on agentic work — and undercuts Fable 5 on cost

Claude Opus 5 leads on agentic work — and undercuts Fable 5 on cost

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2 min read
Claude Opus 5: beats Fable 5 at half the price — and 'awakens' in its own system card

Claude Opus 5: beats Fable 5 at half the price — and 'awakens' in its own system card

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4 min read
Claude Cowork on Windows and Linux: How to Run It in 2026

Claude Cowork on Windows and Linux: How to Run It in 2026

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10 min read
claude-security Beta: Cost, Output, Accuracy — 189 Agents, 2 Hours, Measured

claude-security Beta: Cost, Output, Accuracy — 189 Agents, 2 Hours, Measured

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11 min read
3 Assumptions That Broke Before I Got gpt-oss-120b Working Through the Anthropic SDK

3 Assumptions That Broke Before I Got gpt-oss-120b Working Through the Anthropic SDK

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6 min read
Claude Code's Usage Meter Quietly Got 5x Stricter — What Builders Should Do

Claude Code's Usage Meter Quietly Got 5x Stricter — What Builders Should Do

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3 min read
Where are YC founders now? OpenAI and Anthropic, mostly!

Where are YC founders now? OpenAI and Anthropic, mostly!

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5 min read
I Grepped My Own Claude Code Logs and Found the Hidden Tag Anthropic Never Shows You

I Grepped My Own Claude Code Logs and Found the Hidden Tag Anthropic Never Shows You

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6 min read
AI Agent Tool Sprawl: How Anthropic's 2026 Upgrades Fix It

AI Agent Tool Sprawl: How Anthropic's 2026 Upgrades Fix It

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6 min read
How I Scored 910/1000 on CCAF Claude Certification and Open-Sourced My Last Cheat Sheet

How I Scored 910/1000 on CCAF Claude Certification and Open-Sourced My Last Cheat Sheet

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5 min read
When AI Builds Itself: What Execution Gets You

When AI Builds Itself: What Execution Gets You

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3 min read
I Did the Math on Claude Sonnet 5. The 60% Opus Discount Is Real, But Temporary.

I Did the Math on Claude Sonnet 5. The 60% Opus Discount Is Real, But Temporary.

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6 min read
An AI wrote a working operating-system kernel from scratch in 38 minutes

An AI wrote a working operating-system kernel from scratch in 38 minutes

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3 min read
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