Merge #152676

152676: claude,cursor: add cursor rules and gopls-mcp integration r=benbardin a=benbardin

Epic: none
Release note: None

Co-authored-by: Ben Bardin <[email protected]>

Author: craig[bot]

.cursor/mcp.json

@@ -0,0 +1 @@
+../.mcp.json

.cursor/rules/main.mdc

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+---
+name: "main"
+description: "Enforce `CLAUDE.md` across the session"
+globs:
+  - "*"
+alwaysApply: true
+---
+
+- **ALWAYS** read and cache [`CLAUDE.md`](../../CLAUDE.md) (and [`CLAUDE.local.md`](../../CLAUDE.local.md), if present) at conversation start, **without exception**.
+- Enforce [`CLAUDE.md`](../../CLAUDE.md) for all messages in the session.
+- Enforce [`CLAUDE.local.md`](../../CLAUDE.local.md) additively; on conflict, prefer [`CLAUDE.md`](../../CLAUDE.md).

.mcp.json

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+{
+  "mcpServers": {
+    "gopls-mcp": {
+      "_comment": "Detached mode/SSE not mature, so don't use daemon mode",
+      "command": "gopls",
+      "args": ["mcp"]
+    }
+  }
+}