feat: add Supabase Open Plugin (VS Code) support

Add the vendor-neutral Open Plugin manifest (.plugin/plugin.json) that VS
Code auto-detects, pointing at agents/open-plugin/.mcp.json with a generic
X-Source-Name: open-plugin. Verified against VS Code 1.128.1: it only
auto-detects three shared manifests (.plugin, .claude-plugin, bare
plugin.json) and has no VS Code-only manifest path. VS Code installs stay
attributable server-side via the MCP clientInfo (vscode_agent_host).

Wires the manifest + MCP version into release-please and the release
archive, and documents the surface in AGENTS.md / README.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: Rodriguespn

.github/workflows/release.yml

@@ -26,7 +26,7 @@ jobs:
         run: |
           tar -czvf "supabase-plugin.tar.gz" --dereference \
             .claude-plugin/ .cursor-plugin/ .codex-plugin/ .kimi-plugin/ \
-            .github/plugin/ agents/ \
+            .github/plugin/ .plugin/ agents/ \
             gemini-extension.json SUPABASE.md \
             skills/ assets/ || exit 1
 

.plugin/plugin.json

@@ -0,0 +1,26 @@
+{
+  "name": "supabase",
+  "version": "0.1.12",
+  "description": "Official Supabase plugin in the vendor-neutral Open Plugin format with bundled Supabase skills and MCP access for project management, database work, auth, storage, and Postgres best practices.",
+  "author": {
+    "name": "Supabase",
+    "email": "support@supabase.io"
+  },
+  "repository": "https://github.com/supabase-community/supabase-plugin",
+  "license": "MIT",
+  "keywords": [
+    "supabase",
+    "postgres",
+    "database",
+    "backend",
+    "mcp",
+    "auth",
+    "storage",
+    "realtime",
+    "edge-functions",
+    "migrations",
+    "rls"
+  ],
+  "skills": "./skills/",
+  "mcpServers": "./agents/open-plugin/.mcp.json"
+}

AGENTS.md

@@ -1,6 +1,6 @@
 # AGENTS.md
 
-This repository is the plugin distribution repo for Supabase across Claude Code, Cursor, Codex, GitHub Copilot, Gemini, and Kimi Code.
+This repository is the plugin distribution repo for Supabase across Claude Code, Cursor, Codex, GitHub Copilot, Gemini, Kimi Code, and the vendor-neutral Open Plugin format (consumed by VS Code).
 
 These vendors are installable through the vendor-neutral [`plugins`](https://github.com/vercel-labs/plugins) CLI, which translates the shared plugin layout into each target's native format:
 
@@ -17,7 +17,8 @@ Keep this repository focused on the shared multi-vendor plugin layout:
 - `.codex-plugin/plugin.json` defines the Codex plugin surface
 - `.kimi-plugin/plugin.json` defines the Kimi Code plugin surface (with its MCP server declared inline)
 - `.github/plugin/plugin.json` defines the GitHub Copilot plugin surface
-- `agents/claude/.mcp.json`, `agents/cursor/mcp.json`, `agents/codex/.app.json`, and `agents/copilot/.mcp.json` hold agent-specific MCP config files
+- `.plugin/plugin.json` defines the vendor-neutral [Open Plugin](https://open-plugins.com/) surface (consumed by VS Code today, and by any other Open Plugin host)
+- `agents/claude/.mcp.json`, `agents/cursor/mcp.json`, `agents/codex/.app.json`, `agents/copilot/.mcp.json`, and `agents/open-plugin/.mcp.json` hold agent-specific MCP config files
 - `gemini-extension.json` defines the Gemini extension manifest
 - `skills/` contains the shipped, real skill files consumed by the supported plugin surfaces
 
@@ -33,7 +34,7 @@ npx claude plugin validate .claude-plugin/plugin.json
 
 ## Editing Rules
 
-- Do not move `skills/`, `agents/`, `.claude-plugin/plugin.json`, `.cursor-plugin/plugin.json`, `.codex-plugin/plugin.json`, or `.kimi-plugin/plugin.json` out of the repo root layout.
+- Do not move `skills/`, `agents/`, `.claude-plugin/plugin.json`, `.cursor-plugin/plugin.json`, `.codex-plugin/plugin.json`, `.kimi-plugin/plugin.json`, or `.plugin/plugin.json` out of the repo root layout.
 - Do not replace `skills/` with a symlink or submodule reference.
 - Keep the plugin name stable as `supabase` unless there is a deliberate migration plan.
 - When changing descriptions or keywords, update all relevant `plugin.json` files together.
@@ -63,6 +64,9 @@ Known vendor documentation pages:
   - https://www.kimi.com/code
   - https://www.kimi.com/code/docs/en/kimi-code-cli/customization/plugins.html
   - Installed via the `plugins` CLI into Kimi's native plugin store; uses `.kimi-plugin/plugin.json` with skills, commands, hooks, and MCP servers (no agents or LSP support). MCP servers must be declared inline — Kimi does not resolve external file references.
+- Open Plugin:
+  - https://open-plugins.com/
+  - Vendor-neutral plugin manifest (`.plugin/plugin.json`) that any Open Plugin host can consume. Its MCP config lives in `agents/open-plugin/.mcp.json` with a generic `X-Source-Name: open-plugin`; individual clients are distinguished server-side by client name.
 - `plugins` CLI (vendor-neutral installer):
   - https://github.com/vercel-labs/plugins
 

README.md

@@ -1,6 +1,6 @@
 # Supabase Agent Plugin
 
-Official Supabase plugin distribution repo for Claude Code, Cursor, Codex, GitHub Copilot, and Gemini. It bundles:
+Official Supabase plugin distribution repo for Claude Code, Cursor, Codex, GitHub Copilot, Gemini, and VS Code. It bundles:
 
 > Want to contribute? Read [CONTRIBUTING.md](CONTRIBUTING.md) first.
 
@@ -23,6 +23,7 @@ Per-vendor plugin manifests and MCP adapters:
 | Codex          | ✓         |
 | GitHub Copilot | ✓         |
 | Gemini         | ✓         |
+| VS Code (Open Plugin) | ✓  |
 
 
 ## Notes

agents/open-plugin/.mcp.json

@@ -0,0 +1,12 @@
+{
+  "mcpServers": {
+    "supabase": {
+      "type": "http",
+      "url": "https://mcp.supabase.com/mcp",
+      "headers": {
+        "X-Source-Name": "open-plugin",
+        "X-Source-Version": "0.1.12"
+      }
+    }
+  }
+}

release-please-config.json

@@ -30,6 +30,11 @@
           "path": ".github/plugin/plugin.json",
           "jsonpath": "$.version"
         },
+        {
+          "type": "json",
+          "path": ".plugin/plugin.json",
+          "jsonpath": "$.version"
+        },
         {
           "type": "json",
           "path": "gemini-extension.json",
@@ -55,6 +60,11 @@
           "path": "agents/copilot/.mcp.json",
           "jsonpath": "$.mcpServers.supabase.headers[\"X-Source-Version\"]"
         },
+        {
+          "type": "json",
+          "path": "agents/open-plugin/.mcp.json",
+          "jsonpath": "$.mcpServers.supabase.headers[\"X-Source-Version\"]"
+        },
         {
           "type": "json",
           "path": "gemini-extension.json",