skip to content- 2026-07-26
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AI Subscription Capacity Is Perishable
Why AI subscription limits are perishable, how purchased Codex resets differ from credits and grants, and how to use capacity without waste.
- 2026-07-26
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Prompt Caching: Cut AI Agent Token Costs
Learn how prompt caching changes LLM token costs, why coding agents resend context, what compaction can waste, and how to measure Codex, Claude Code, and OpenCode.
- 2026-04-01
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Claude Code Leak: The Hidden Features That Escaped, and What Builders Should Actually Care About
The Claude Code leak exposed hidden features, but the deeper lesson is operational: package artifacts can leak product boundaries, internal experiments, and roadmap intent.
- 2026-02-25
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Codex vs Claude Code vs Kimi Code
Current decision guide for Codex, Claude Code, and Kimi Code, separating tool plans from GPT-5.6, Opus 5, Kimi K3, and Kimi K2.7 model evidence.
- 2026-02-19
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Anthropic OAuth Policy Feb 2026: What Changed
Anthropic's official Claude Code compliance docs explicitly prohibit OAuth tokens in third-party tools, including the Agent SDK. Here's what's new, why OpenCode broke, and where the OSS ecosystem goes next.
- 2026-02-17
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UltraThink → UltraQuiet: Why Devs Want Receipts
Claude Code started hiding file paths and search details behind Ctrl+O. Here's a working fix: the AGENTS.md Audit Ledger pattern.
- 2026-02-03
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Codex vs Claude Code vs Kimi k2.5: Three Paradigms for AI-Assisted Development
A comparative analysis of three AI coding approaches: OpenAI Codex's parallel cloud agents, Claude Code's terminal-native transparency, and Kimi k2.5's open ecosystem with 100 sub-agent swarms.
- 2026-02-03
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Codex vs Claude Code vs Cursor
Current workflow comparison for Codex, Claude Code, and Cursor, with model availability and benchmark claims separated from tool features.