mcp

An operator playbook for Mastra across six TypeScript codebases and the full 1.x line, covering memory's four layers, supervisors, MCP on both ends, RAG and evals, auth, observability, the 1.x migrations and the production bugs that taught the most.

On June 10 Supermemory shipped its graph engine as a local binary anyone can run for free, and 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 share one recurring pattern of 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.

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

Cursor shipped @cursor/sdk in public beta on April 29, putting the same harness that powers the IDE behind a TypeScript API, and this working developer's tour covers every surface with code, gotchas and ideas.

The Developers playlist is Anthropic's public lecture series for builders, and read against Building Effective Agents, MCP and Claude Code, its 15 videos hang together as one canon built on six core positions.

Stripe shipped 288 launches at Sessions 2026 and devtools-Twitter latched onto four (UCP, MPP, Link CLI, Tempo), but the other 284 contain at least 25 weekend-buildable products no one is shipping, ranked here.

The 28-minute developer keynote at Stripe Sessions 2026 was a complete blueprint for retrofitting any API for agents, and while devtools Twitter mostly missed it, its seven-step playbook is laid out here 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, with 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, and the chatter underneath the list is more useful than the list itself.

Sixteen months in, MCP counts 97M SDK downloads, 20,000+ servers, six framework attempts and one unsolved auth problem; this map covers who is shipping and where the protocol breaks at scale.