feat: add macOS managed preferences support for enterprise MDM deployments

packages/opencode/src/config/config.ts

@@ -2,6 +2,7 @@ import { Log } from "../util/log"
 import path from "path"
 import { pathToFileURL } from "url"
 import os from "os"
+import { Process } from "../util/process"
 import z from "zod"
 import { ModelsDev } from "../provider/models"
 import { mergeDeep, pipe, unique } from "remeda"
@@ -75,6 +76,59 @@ export namespace Config {
 
   const managedDir = managedConfigDir()
 
+  const MANAGED_PLIST_DOMAIN = "ai.opencode.managed"
+
+  // Keys injected by macOS/MDM into the managed plist that are not OpenCode config
+  const PLIST_META = new Set([
+    "PayloadDisplayName",
+    "PayloadIdentifier",
+    "PayloadType",
+    "PayloadUUID",
+    "PayloadVersion",
+    "_manualProfile",
+  ])
+
+  /**
+   * Parse raw JSON (from plutil conversion of a managed plist) into OpenCode config.
+   * Strips MDM metadata keys before parsing through the config schema.
+   * Pure function — no OS interaction, safe to unit test directly.
+   */
+  export function parseManagedPlist(json: string, source: string): Info {
+    const raw = JSON.parse(json)
+    for (const key of Object.keys(raw)) {
+      if (PLIST_META.has(key)) delete raw[key]
+    }
+    return parseConfig(JSON.stringify(raw), source)
+  }
+
+  /**
+   * Read macOS managed preferences deployed via .mobileconfig / MDM (Jamf, Kandji, etc).
+   * MDM-installed profiles write to /Library/Managed Preferences/ which is only writable by root.
+   * User-scoped plists are checked first, then machine-scoped.
+   */
+  async function readManagedPreferences(): Promise<Info> {
+    if (process.platform !== "darwin") return {}
+
+    const domain = MANAGED_PLIST_DOMAIN
+    const user = os.userInfo().username
+    const paths = [
+      path.join("/Library/Managed Preferences", user, `${domain}.plist`),
+      path.join("/Library/Managed Preferences", `${domain}.plist`),
+    ]
+
+    for (const plist of paths) {
+      if (!existsSync(plist)) continue
+      log.info("reading macOS managed preferences", { path: plist })
+      const result = await Process.run(["plutil", "-convert", "json", "-o", "-", plist], { nothrow: true })
+      if (result.code !== 0) {
+        log.warn("failed to convert managed preferences plist", { path: plist })
+        continue
+      }
+      return parseManagedPlist(result.stdout.toString(), `mobileconfig:${plist}`)
+    }
+    return {}
+  }
+
   // Custom merge function that concatenates array fields instead of replacing them
   function mergeConfigConcatArrays(target: Info, source: Info): Info {
     const merged = mergeDeep(target, source)
@@ -1356,6 +1410,9 @@ export namespace Config {
             }
           }
 
+          // macOS managed preferences (.mobileconfig deployed via MDM) override everything
+          result = mergeConfigConcatArrays(result, yield* Effect.promise(() => readManagedPreferences()))
+
           for (const [name, mode] of Object.entries(result.mode ?? {})) {
             result.agent = mergeDeep(result.agent ?? {}, {
               [name]: {

packages/opencode/test/config/config.test.ts

@@ -2265,3 +2265,84 @@ describe("OPENCODE_CONFIG_CONTENT token substitution", () => {
     }
   })
 })
+
+// parseManagedPlist unit tests — pure function, no OS interaction
+
+test("parseManagedPlist strips MDM metadata keys", async () => {
+  const config = await Config.parseManagedPlist(
+    JSON.stringify({
+      PayloadDisplayName: "OpenCode Managed",
+      PayloadIdentifier: "ai.opencode.managed.test",
+      PayloadType: "ai.opencode.managed",
+      PayloadUUID: "AAAA-BBBB-CCCC",
+      PayloadVersion: 1,
+      _manualProfile: true,
+      share: "disabled",
+      model: "mdm/model",
+    }),
+    "test:mobileconfig",
+  )
+  expect(config.share).toBe("disabled")
+  expect(config.model).toBe("mdm/model")
+  // MDM keys must not leak into the parsed config
+  expect((config as any).PayloadUUID).toBeUndefined()
+  expect((config as any).PayloadType).toBeUndefined()
+  expect((config as any)._manualProfile).toBeUndefined()
+})
+
+test("parseManagedPlist parses server settings", async () => {
+  const config = await Config.parseManagedPlist(
+    JSON.stringify({
+      $schema: "https://opencode.ai/config.json",
+      server: { hostname: "127.0.0.1", mdns: false },
+      autoupdate: true,
+    }),
+    "test:mobileconfig",
+  )
+  expect(config.server?.hostname).toBe("127.0.0.1")
+  expect(config.server?.mdns).toBe(false)
+  expect(config.autoupdate).toBe(true)
+})
+
+test("parseManagedPlist parses permission rules", async () => {
+  const config = await Config.parseManagedPlist(
+    JSON.stringify({
+      $schema: "https://opencode.ai/config.json",
+      permission: {
+        "*": "ask",
+        bash: { "*": "ask", "rm -rf *": "deny", "curl *": "deny" },
+        grep: "allow",
+        glob: "allow",
+        webfetch: "ask",
+        "~/.ssh/*": "deny",
+      },
+    }),
+    "test:mobileconfig",
+  )
+  expect(config.permission?.["*"]).toBe("ask")
+  expect(config.permission?.grep).toBe("allow")
+  expect(config.permission?.webfetch).toBe("ask")
+  expect(config.permission?.["~/.ssh/*"]).toBe("deny")
+  const bash = config.permission?.bash as Record<string, string>
+  expect(bash?.["rm -rf *"]).toBe("deny")
+  expect(bash?.["curl *"]).toBe("deny")
+})
+
+test("parseManagedPlist parses enabled_providers", async () => {
+  const config = await Config.parseManagedPlist(
+    JSON.stringify({
+      $schema: "https://opencode.ai/config.json",
+      enabled_providers: ["anthropic", "google"],
+    }),
+    "test:mobileconfig",
+  )
+  expect(config.enabled_providers).toEqual(["anthropic", "google"])
+})
+
+test("parseManagedPlist handles empty config", async () => {
+  const config = await Config.parseManagedPlist(
+    JSON.stringify({ $schema: "https://opencode.ai/config.json" }),
+    "test:mobileconfig",
+  )
+  expect(config.$schema).toBe("https://opencode.ai/config.json")
+})

packages/web/src/content/docs/config.mdx

@@ -49,8 +49,10 @@ Config sources are loaded in this order (later sources override earlier ones):
 4. **Project config** (`opencode.json` in project) - project-specific settings
 5. **`.opencode` directories** - agents, commands, plugins
 6. **Inline config** (`OPENCODE_CONFIG_CONTENT` env var) - runtime overrides
+7. **Managed config files** (`/Library/Application Support/opencode/` on macOS) - admin-controlled
+8. **macOS managed preferences** (`.mobileconfig` via MDM) - highest priority, not user-overridable
 
-This means project configs can override global defaults, and global configs can override remote organizational defaults.
+This means project configs can override global defaults, and global configs can override remote organizational defaults. Managed settings override everything.
 
 :::note
 The `.opencode` and `~/.config/opencode` directories use **plural names** for subdirectories: `agents/`, `commands/`, `modes/`, `plugins/`, `skills/`, `tools/`, and `themes/`. Singular names (e.g., `agent/`) are also supported for backwards compatibility.
@@ -149,6 +151,106 @@ The custom directory is loaded after the global config and `.opencode` directori
 
 ---
 
+### Managed settings
+
+Organizations can enforce configuration that users cannot override. Managed settings are loaded at the highest priority tier.
+
+#### File-based
+
+Drop an `opencode.json` or `opencode.jsonc` file in the system managed config directory:
+
+| Platform | Path |
+|----------|------|
+| macOS | `/Library/Application Support/opencode/` |
+| Linux | `/etc/opencode/` |
+| Windows | `%ProgramData%\opencode` |
+
+These directories require admin/root access to write, so users cannot modify them.
+
+#### macOS managed preferences
+
+On macOS, OpenCode reads managed preferences from the `ai.opencode.managed` preference domain. Deploy a `.mobileconfig` via MDM (Jamf, Kandji, FleetDM) and the settings are enforced automatically.
+
+OpenCode checks these paths:
+
+1. `/Library/Managed Preferences/<user>/ai.opencode.managed.plist`
+2. `/Library/Managed Preferences/ai.opencode.managed.plist`
+
+The plist keys map directly to `opencode.json` fields. MDM metadata keys (`PayloadUUID`, `PayloadType`, etc.) are stripped automatically.
+
+**Creating a `.mobileconfig`**
+
+Use the `ai.opencode.managed` PayloadType. The OpenCode config keys go directly in the payload dict:
+
+```xml
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN"
+  "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+  <key>PayloadContent</key>
+  <array>
+    <dict>
+      <key>PayloadType</key>
+      <string>ai.opencode.managed</string>
+      <key>PayloadIdentifier</key>
+      <string>com.example.opencode.config</string>
+      <key>PayloadUUID</key>
+      <string>GENERATE-YOUR-OWN-UUID</string>
+      <key>PayloadVersion</key>
+      <integer>1</integer>
+      <key>share</key>
+      <string>disabled</string>
+      <key>server</key>
+      <dict>
+        <key>hostname</key>
+        <string>127.0.0.1</string>
+      </dict>
+      <key>permission</key>
+      <dict>
+        <key>*</key>
+        <string>ask</string>
+        <key>bash</key>
+        <dict>
+          <key>*</key>
+          <string>ask</string>
+          <key>rm -rf *</key>
+          <string>deny</string>
+        </dict>
+      </dict>
+    </dict>
+  </array>
+  <key>PayloadType</key>
+  <string>Configuration</string>
+  <key>PayloadIdentifier</key>
+  <string>com.example.opencode</string>
+  <key>PayloadUUID</key>
+  <string>GENERATE-YOUR-OWN-UUID</string>
+  <key>PayloadVersion</key>
+  <integer>1</integer>
+</dict>
+</plist>
+```
+
+Generate unique UUIDs with `uuidgen`. Customize the settings to match your organization's requirements.
+
+**Deploying via MDM**
+
+- **Jamf Pro:** Computers > Configuration Profiles > Upload > scope to target devices or smart groups
+- **FleetDM:** Add the `.mobileconfig` to your gitops repo under `mdm.macos_settings.custom_settings` and run `fleetctl apply`
+
+**Verifying on a device**
+
+Double-click the `.mobileconfig` to install locally for testing (shows in System Settings > Privacy & Security > Profiles), then run:
+
+```bash
+opencode debug config
+```
+
+All managed preference keys appear in the resolved config and cannot be overridden by user or project configuration.
+
+---
+
 ## Schema
 
 The server/runtime config schema is defined in [**`opencode.ai/config.json`**](https://opencode.ai/config.json).