• stories/ — the canonical reference. One self-verifying example per protocol feature, each with its own README. Start with stories/tools/; the stories README has the full table and how to run them.
• snippets/ — short extracts embedded into README.v2.md. Kept minimal and in sync with the top-level README; not intended to be run standalone.
• servers/everything-server/ — the conformance target for the cross-SDK conformance suite. Exercises every server capability in one process.
• mcpserver/ — single-file v1-era examples retained for the migration guide; superseded by stories/ and slated for removal.
• clients/ and the remaining servers/ directories (simple-*, sse-polling-demo, structured-output-lowlevel) — standalone v1-era projects still linked from README.v2.md; retained pending consolidation into stories/.

For real-world servers see the servers repository.