mcp

I have shipped Mastra across six TypeScript codebases over the full 1.x line — a market-intelligence API, an autonomous-CMO product, a crypto trading agent, a personal assistant. This is the comprehensive operator playbook: memory's four layers, tools and workflows, supervisors, MCP on both ends, RAG and evals, the free server and auth layers, observability, the whole 1.x migration history, and the production bugs that taught me the most.

On June 10 Supermemory shipped its graph engine as a local binary anyone can run for free. Reading the repo, the docs, and the benchmark fight shows the giveaway is a distribution play, not a surrender.

The OpenCode config that earns its keep — opencode.json layers, the build/plan agents, permissions, AGENTS.md, MCP, and the bring-your-own-model setup that survives a vendor pulling your access.

Eleven OSS agent runtimes, one recurring pattern: memory, sandboxing, skills-vs-MCP, tool governance, and transport. Only Letta solved memory, only smolagents solved sandboxing, and the 2026 vendor SDKs are quietly absorbing the rest into hosting platforms.

146,646 pages. 24,585 people. 66 cron jobs running autonomously. gbrain is the persistent memory layer behind Garry Tan's own AI agents, and the rare self-hosted alternative to vector-DB wrappers in 2026.

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.

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.

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.

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.

The Claude Code config Boris Cherny actually runs — settings.json layers, permissions, plan mode, memory, hooks, skills, subagents, MCPs, sandboxing, and the 5-worktree workflow.

Since Anthropic shipped the SKILL.md spec in September 2025, 480+ marketing-flavored skill repos have surfaced on GitHub. Four canon leaders, a bimodal quality distribution, and four conspicuous gaps.

Y Combinator's Summer 2026 Request for Startups thread reached 8.65M impressions in a week. The chatter underneath the list is more useful than the list.

Twelve months in, MCP is 97M SDK downloads, 20,000+ servers, six framework attempts, and one unsolved auth problem. Here is who is actually shipping and where the protocol breaks at scale.