Episode · Claude Code Deep Dives by PrimeLine
Prompt Caching: The Hidden Rule Behind Every Claude Code Feature
8 Mar 2026 · 22 min
Episode notes
AI-generated deep dive into Claude Code prompt caching - the hidden infrastructure rule that shapes every feature you use daily. Anthropic monitors prompt cache hit rate like infrastructure uptime. If it drops too low, they open an incident. Not a bug ticket - an incident. That single fact explains dozens of Claude Code design decisions that otherwise seem arbitrary. In this episode, we break down: - Why CLAUDE.md loads before your conversation (prefix stability) - How prompt caching works via byte-for-byte prefix matching - Why plan mode is a tool call, not a mode swap - The real cost of…
Podcast
Claude Code Deep Dives by PrimeLine
Robin @ PrimeLine · Tech & Science · English
AI-powered deep dives into Claude Code systems architecture. Each episode explores real production setups - from memory systems and agent delegation to context management and self-correcting workflows. Based on the blog at primeline.cc.
More from Claude Code Deep Dives by PrimeLine All episodes →
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E5 · 8 Mar 2026 · 21 min
Team Guardrails: Stopping AI Chaos Across 5 Developers
5 developers on your team. 5 different Claude Code outputs. Same codebase, same task, wildly different results. One dev gets clean TypeScript with error handling. Another gets sloppy JavaScript with console.logs. A third ignores your auth patterns entirely.The root cause: zero shared configuration. This episode covers the three-layer guardrail system that turns Claude Code from a personal tool into a team-safe development platform.In this episode:- Why Claude Code team consistency breaks down without shared configuration- The invisible drift problem: each developer's prompting habits create…
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E4 · 8 Mar 2026 · 20 min
Planning Framework: Catching Wrong Questions Before Wrong Answers
I asked an AI system about a tax regime. It delivered a structured, confident answer with eligibility rules, residency requirements, and tax rates. Completely usable output. Also completely useless - because the regime had been replaced a year earlier. The AI answered the wrong question perfectly.This failure mode has a name: Premature Collapse. The AI locks onto the first interpretation before exploring alternatives. This episode covers the two interlocking systems I built to fix it.In this episode:- Premature Collapse: why Claude Code plans confidently but sometimes plans the wrong thing-…
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8 Mar 2026 · 19 min
Session Memory: Build Systems, Not Sessions in Claude Code
Your Claude Code session hit 80% context. You compact or restart. Next session: "Can you read the project fil3es and understand the architecture?" Back to zero. Every time.This is not a Claude Code limitation. It is a workflow gap. After 110+ sessions across 4 projects, I built a free plugin that closes it - four commands that turn isolated sessions into a continuous development system.In this episode:- The gap between Claude Code's native MEMORY.md and actual session continuity- How 6+ existing memory plugins solve storage but miss the workflow problem- The four commands that create a…
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E2 · 8 Mar 2026 · 13 min
Session Management: Why I Stopped Restarting Claude Code
I injected a test marker into my auto-memory file mid-session. Next turn, Claude had no idea the file changed. That experiment changed everything about how I manage Claude Code sessions.Most developers restart Claude Code when context hits 80%. Feels productive. Costs $0.67 per restart in invisible cache rebuilds. Do that 10 times a day and you are burning $6.70 before writing a single line of code.In this episode:- The marker injection experiment that revealed how CLAUDE.md actually loads- What is in the cached prefix and what changes every turn- The real cost of session restarts vs.…
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