feat(mem0-plugin): auto coding categories, global search, OpenCode parity (#5300)

mem0-plugin/.opencode-plugin/opencode-skills/switch-project/SKILL.md

@@ -1,18 +1,75 @@
 ---
 name: switch-project
-description: Overrides the auto-detected project scope to read and write memories under a different project ID. Use when working across multiple projects, accessing memories from another repo, or when auto-detection resolves to the wrong project.
+description: Overrides the auto-detected project scope to read and write memories under a different project ID, or enables global search to access all memories across all users and projects. Use when working across multiple projects, accessing memories from another repo, enabling team-wide memory access, or when auto-detection resolves to the wrong project.
 ---
 
 # Mem0 Switch Project
 
-Override the automatic project_id detection for the current directory.
+Override the automatic project_id detection for the current directory, or enable global search mode.
 
 ## Usage
 
-The user provides a project name as an argument: `/mem0:switch-project <project-name>`
+- `/mem0:switch-project <project-name>` — switch to a specific project scope
+- `/mem0:switch-project --global` — enable global search (all memories, all users, all projects)
+- `/mem0:switch-project --no-global` — disable global search and return to per-project scoping
 
 ## Execution
 
+### If `--global` flag is provided:
+
+1. Set `global_search: true` in `~/.mem0/settings.json` using the Bash tool:
+
+   ```bash
+   python3 -c "
+   import json, os
+   settings_file = os.path.expanduser('~/.mem0/settings.json')
+   settings = {}
+   if os.path.isfile(settings_file):
+       with open(settings_file) as f:
+           settings = json.load(f)
+   settings['global_search'] = True
+   with open(settings_file, 'w') as f:
+       json.dump(settings, f, indent=2)
+   print('Global search enabled')
+   "
+   ```
+
+2. Print:
+   ```
+   Global search enabled.
+   Searches now return all memories across all users and projects.
+   Writes still use the current user_id and app_id.
+   Restart the session for the change to take effect.
+   ```
+
+### If `--no-global` flag is provided:
+
+1. Set `global_search: false` in `~/.mem0/settings.json` using the Bash tool:
+
+   ```bash
+   python3 -c "
+   import json, os
+   settings_file = os.path.expanduser('~/.mem0/settings.json')
+   settings = {}
+   if os.path.isfile(settings_file):
+       with open(settings_file) as f:
+           settings = json.load(f)
+   settings['global_search'] = False
+   with open(settings_file, 'w') as f:
+       json.dump(settings, f, indent=2)
+   print('Global search disabled')
+   "
+   ```
+
+2. Print:
+   ```
+   Global search disabled.
+   Searches now return only memories scoped to the current project.
+   Restart the session for the change to take effect.
+   ```
+
+### If a project name is provided (no flags):
+
 1. If no project name was given, ask: "What project_id should this directory use?"
 
 2. Write the mapping to `~/.mem0/project_map.json` using the Bash tool: