All posts
Every piece, by year. Most recent first.
2026
10 pieces-
What you can actually build with Cursor's SDK
Cursor shipped @cursor/sdk in public beta on April 29 — the same harness that powers the IDE, scriptable from TypeScript. A working developer's tour of every surface, with code, gotchas, and ideas.
May 18- cursor
- agents
- sdk
- typescript
- mcp
- developer-tools
-
Capsule by Beam: the "@supabase for AI apps" pitch, audited line by line
Eli Mernit's May 19 launch positioned Capsule as Supabase for AI apps. The SDK ships closed-source as a 16,400-LOC wheel, the gateway is hardcoded to gateway.capsule.new:443, and Beam takes 10% of every Stripe Connect dollar. The pitch is sharp, the product is real, the analogy doesn't survive a wheel extraction.
May 17- capsule
- beam
- ai-frameworks
- supabase
- agent-infrastructure
- mernit
-
Phoenix, and the X algorithm release that doesn't compile
On May 15, X pushed 18,263 lines of Rust and Python to the public algorithm repo — a complete architectural rewrite away from the 2023 Scala stack, built around a Grok-based transformer. The code does not build, the engagement weights are still missing, and the most interesting thing in it is the model nobody is reading.
May 16- x
- algorithm
- open-source
- recommendation-systems
- transformers
- grok
-
Anthropic's developer doctrine in fifteen videos and a panel
The Developers playlist is Anthropic's public lecture series for builders. Read against Building Effective Agents, MCP, and Claude Code, the canon hangs together. Here is what it argues.
May 15- anthropic
- claude-code
- agents
- mcp
- prompt-engineering
-
What to build on Stripe Sessions 2026: 25 ideas you have not heard yet
Stripe shipped 288 launches at Sessions 2026 and devtools-Twitter latched onto four — UCP, MPP, Link CLI, Tempo. The other 284 contain at least 25 weekend-buildable products no one is shipping. Here they are, ranked.
May 14- stripe
- agents
- developer-tools
- build-ideas
- payments
- mcp
-
Paul Graham just put a number on the post-YC geography decision — and the press missed it
YC now has internal data on what happens to startups that go home after the batch. They're only half as likely to become unicorns. Graham disclosed it on stage in Stockholm; coverage led with the wrong sentence.
May 13- paul-graham
- y-combinator
- silicon-valley
- stockholm
- startup-hubs
- founders
-
Speech-to-text in 2026: the five markets, the price war, and the benchmark collapse
xAI ships STT at $0.10/hr. Scribe v2 sits at 2.2% AA-WER. Wispr Flow's users say accuracy regressed. The five markets, what the benchmarks really say.
May 13- speech-to-text
- asr
- voice-ai
- deepgram
- assemblyai
- wispr-flow
-
How to make your API agent-native — Stripe's developer playbook
The 28-minute developer keynote at Stripe Sessions 2026 was a complete blueprint for retrofitting any API for agents. Devtools Twitter mostly missed it. Here is the seven-step playbook, line by line.
May 11- stripe
- agents
- developer-experience
- mcp
- api-design
-
Agent harness engineering: the discipline nobody named for two years
Two near-simultaneous coiners (Mitchell Hashimoto and Viv Trivedy), seven convergent voices, and twelve coding agents that all built the same primitives independently. A discipline crystallized in nine months — what it is, who built it, and what every shipping product now contains.
May 10- harness
- agents
- claude-code
- anthropic
- langchain
- tooling
- infrastructure
-
The AI influencer economy: what it actually costs to earn, and who actually earns
Higgsfield raised $130M at $1.3B wrapping Veo, Kling and Sora, then spent 30 days getting called a scam. Tutorials sell five-figure months. The median Fanvue creator earns $150 to $300. The full cost-to-earnings math.
May 9- ai-influencers
- higgsfield
- fanvue
- comfyui
- ai-policy