Deep Dives
In-depth technical exploration of concepts and systems.
Category
Deep Dives
Tags
15 more tagsFewer tags
Newsletter
New posts land in your inbox when they publish. No spam, unsubscribe anytime.
You're in. New posts head your way.
Filters1
Category
Deep Dives
Tags
15 more tagsFewer tags
9 posts
Cloudflare Virtual Wallets are the subaccount for APIs
Cloudflare Virtual Wallets are the API-key subaccount. Claim the handle this week, pick three spending caps, and never hand the Account Wallet to an agent.
Ray CVE made the developer laptop the target
CISA catalogued a Ray CVE because a developer browser can hit local Ray. Patch anything below 2.52.0 and treat the developer laptop as in-scope today.
x402 left Coinbase and got a standards body
x402 Foundation left Coinbase for the Linux Foundation. Wire the three V2 headers, then point production at a facilitator that actually settles mainnet.
MCP went stateless and the session just moved
Stateless MCP deleted the protocol session. Continuity now rides in requestState on retry. Delete sticky routing, keep the store for carts and tokens.
MCP is now traffic a firewall can name
MCP traffic detection now matches protocol headers, not mcp in the hostname. Treat the next remote MCP install as a named network event, not a config tweak.
Isolate sharing is a Spectre channel on Workers
Workers Spectre is isolate sharing on the edge. A JWT in neighbor heap leaked at 12 bit/s in production. Keep secrets on env rather than module scope.
Gemini Spark Skills Explained Without the Developer Talk
Gemini Spark skills are not saved prompts. Gemini reads only a skill name and description when deciding to use one, and that changes how you should write them.
Claude Is a Math Problem (And the Context Window Is the Equation)
The Claude context window is an equation, not a chat. Why failed attempts anchor the output, where measured degradation starts, and when to clear and re-derive.
Next.js 16 Cache Components: The Feature Nobody Understands Yet
Next.js 16 cache components replace unstable_cache with the use cache directive, cacheLife, and cacheTag. A clear walkthrough of what changed, why it matters, and how to migrate.