Implemented Capabilities (Obsidian Extension Mapping)
For developers: how Harness Like (the host plugin) maps Obsidian's extension points, and which built-in tools each agent mode can call.
Host plugin → Obsidian extension mapping
| Obsidian extension point | Harness Like mapping |
|---|---|
Commands (app.commands) | Host commands: Open Harness Like Panel / Open Plugin Manager / Reload authorized plugins; sub-plugin commands auto-grouped as Harness Like: command (sub-plugin-id) |
Views (viewRegistry) | Host panels: Chat, Plugin Manager; sub-plugin ItemView panels |
Settings tabs (addSettingTab) | Tabbed settings: Models / Agents / Approval / Sessions / Data / Interface / Logs / Plugin Grants |
| Ribbon icons | Host bot icon (opens Chat); sub-plugins can register their own |
| Status bar | Sub-plugins can add status bar items |
obsidian:// protocol handlers | Single entry obsidian://harness-like?plugin=<id>&cmd=<name> routed to sub-plugin handlers (ctx.protocol.register) |
| Custom code blocks | Notes write ```hl <sub-plugin-id or plugin alias>[:<type>] [params...] , routed to the sub-plugin renderer (ctx.blocks.register); the hl namespace is owned by the host (registered once at startup, cannot be taken by other plugins) |
| Editor bridge | ctx.editor (selection / insert / replace) |
| Filesystem | ctx.vault (read/write/folders/events `vault/create |
| Workspace | ctx.workspace (active file, file-open event) |
| Notifications | ctx.notice |
| Browser | openTarget (open external links/paths) |
Built-in tools × agent modes
| Tool | Chat (read-only) | Edit (read/write notes) | Create (full) |
|---|---|---|---|
read_note | ✅ | ✅ | ✅ |
list_notes | ✅ | ✅ | ✅ |
search_notes | ✅ | ✅ | ✅ |
write_note | — | ✅ | ✅ |
insert_to_editor | — | ✅ | ✅ |
open_in_browser | — | ✅ | ✅ |
plugin_guide | — | — | ✅ |
create_plugin | — | — | ✅ |
write_plugin_file | — | — | ✅ |
check_plugin (verify plugin code: syntax / forbidden APIs) | — | — | ✅ |
plugin_status | — | — | ✅ |
reload_plugin | — | — | ✅ |
open_view | — | — | ✅ |
run_command | — | ✅¹ | ✅¹ |
¹
run_command（shell 命令执行）需先在设置 → 审批 中开启「允许执行命令」，且每次调用弹审批确认；默认工作目录 = vault 根，指定任意目录需另开「完全放行」。
Custom agents override these via capability whitelists (checked tools).
What sub-plugins can register
Tools (ctx.toolsCompat.register), commands (+ ctx.commands.execute(id) to run any registered command, incl. Obsidian core plugin commands), ItemView panels (ctx.views), ribbon icons, status bar items, settings tabs (ctx.settingsTab.register), deep links (ctx.protocol.register), custom code blocks (ctx.blocks.register) — signatures in the Services Reference. Full walkthrough: Your First Plugin.