fix(kiro): parse .mcp.json wrapper key and support remote MCP servers (#259)

* fix(kiro): parse .mcp.json wrapper key and support remote MCP servers

* refactor: extract unwrapMcpServers helper to deduplicate parser logic

Address review feedback by extracting the mcpServers unwrap logic
into a shared helper used by both loadMcpServers and loadMcpPaths.

src/converters/claude-to-kiro.ts

@@ -53,7 +53,7 @@ export function convertClaudeToKiro(
     convertCommandToSkill(command, usedSkillNames, agentNames),
   )
 
-  // Convert MCP servers (stdio only)
+  // Convert MCP servers (stdio and remote)
   const mcpServers = convertMcpServers(plugin.mcpServers)
 
   // Build steering files from CLAUDE.md
@@ -177,19 +177,20 @@ function convertMcpServers(
 
   const result: Record<string, KiroMcpServer> = {}
   for (const [name, server] of Object.entries(servers)) {
-    if (!server.command) {
+    if (server.command) {
+      const entry: KiroMcpServer = { command: server.command }
+      if (server.args && server.args.length > 0) entry.args = server.args
+      if (server.env && Object.keys(server.env).length > 0) entry.env = server.env
+      result[name] = entry
+    } else if (server.url) {
+      const entry: KiroMcpServer = { url: server.url }
+      if (server.headers && Object.keys(server.headers).length > 0) entry.headers = server.headers
+      result[name] = entry
+    } else {
       console.warn(
-        `Warning: MCP server "${name}" has no command (HTTP/SSE transport). Kiro only supports stdio. Skipping.`,
+        `Warning: MCP server "${name}" has no command or url. Skipping.`,
       )
-      continue
     }
-
-    const entry: KiroMcpServer = { command: server.command }
-    if (server.args && server.args.length > 0) entry.args = server.args
-    if (server.env && Object.keys(server.env).length > 0) entry.env = server.env
-
-    console.log(`MCP server "${name}" will execute: ${server.command}${server.args ? " " + server.args.join(" ") : ""}`)
-    result[name] = entry
   }
   return result
 }

src/parsers/claude.ts

@@ -158,7 +158,8 @@ async function loadMcpServers(
 
   const mcpPath = path.join(root, ".mcp.json")
   if (await pathExists(mcpPath)) {
-    return readJson<Record<string, ClaudeMcpServer>>(mcpPath)
+    const raw = await readJson<Record<string, unknown>>(mcpPath)
+    return unwrapMcpServers(raw)
   }
 
   return undefined
@@ -232,12 +233,20 @@ async function loadMcpPaths(
   for (const entry of toPathList(value)) {
     const resolved = resolveWithinRoot(root, entry, "mcpServers path")
     if (await pathExists(resolved)) {
-      configs.push(await readJson<Record<string, ClaudeMcpServer>>(resolved))
+      const raw = await readJson<Record<string, unknown>>(resolved)
+      configs.push(unwrapMcpServers(raw))
     }
   }
   return configs
 }
 
+function unwrapMcpServers(raw: Record<string, unknown>): Record<string, ClaudeMcpServer> {
+  if (raw.mcpServers && typeof raw.mcpServers === "object") {
+    return raw.mcpServers as Record<string, ClaudeMcpServer>
+  }
+  return raw as Record<string, ClaudeMcpServer>
+}
+
 function mergeMcpConfigs(configs: Record<string, ClaudeMcpServer>[]): Record<string, ClaudeMcpServer> {
   return configs.reduce((acc, config) => ({ ...acc, ...config }), {})
 }

tests/kiro-converter.test.ts

@@ -174,11 +174,7 @@ describe("convertClaudeToKiro", () => {
     expect(bundle.mcpServers.local.args).toEqual(["hello"])
   })
 
-  test("MCP HTTP servers skipped with warning", () => {
-    const warnings: string[] = []
-    const originalWarn = console.warn
-    console.warn = (msg: string) => warnings.push(msg)
-
+  test("MCP HTTP servers converted with url", () => {
     const plugin: ClaudePlugin = {
       ...fixturePlugin,
       mcpServers: {
@@ -189,11 +185,32 @@ describe("convertClaudeToKiro", () => {
       skills: [],
     }
 
+    const bundle = convertClaudeToKiro(plugin, defaultOptions)
+
+    expect(Object.keys(bundle.mcpServers)).toHaveLength(1)
+    expect(bundle.mcpServers.httpServer).toEqual({ url: "https://example.com/mcp" })
+  })
+
+  test("MCP servers with no command or url skipped with warning", () => {
+    const warnings: string[] = []
+    const originalWarn = console.warn
+    console.warn = (msg: string) => warnings.push(msg)
+
+    const plugin: ClaudePlugin = {
+      ...fixturePlugin,
+      mcpServers: {
+        broken: {} as any,
+      },
+      agents: [],
+      commands: [],
+      skills: [],
+    }
+
     const bundle = convertClaudeToKiro(plugin, defaultOptions)
     console.warn = originalWarn
 
     expect(Object.keys(bundle.mcpServers)).toHaveLength(0)
-    expect(warnings.some((w) => w.includes("no command") || w.includes("HTTP"))).toBe(true)
+    expect(warnings.some((w) => w.includes("no command or url"))).toBe(true)
   })
 
   test("plugin with zero agents produces empty agents array", () => {