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Add a plugin system that lets plugins add new tabs to the dashboard.
Plugins live in ~/.hermes/plugins/<name>/dashboard/ alongside any
existing CLI/gateway plugin code.
Plugin structure:
plugins/<name>/dashboard/
manifest.json # name, label, icon, tab config, entry point
dist/index.js # pre-built JS bundle (IIFE, uses SDK globals)
plugin_api.py # optional FastAPI router mounted at /api/plugins/<name>/
Backend (hermes_cli/web_server.py):
- Plugin discovery: scans plugins/*/dashboard/manifest.json from user,
bundled, and project plugin directories
- GET /api/dashboard/plugins — returns discovered plugin manifests
- GET /api/dashboard/plugins/rescan — force re-discovery
- GET /dashboard-plugins/<name>/<path> — serves plugin static assets
with path traversal protection
- Optional API route mounting: imports plugin_api.py and mounts its
router under /api/plugins/<name>/
- Plugin API routes bypass session token auth (localhost-only)
Frontend (web/src/plugins/):
- Plugin SDK exposed on window.__HERMES_PLUGIN_SDK__ — provides React,
hooks, UI components (Card, Badge, Button, etc.), API client,
fetchJSON, theme/i18n hooks, and utilities
- Plugin registry on window.__HERMES_PLUGINS__.register(name, Component)
- usePlugins() hook: fetches manifests, loads JS/CSS, resolves components
- App.tsx dynamically adds nav items and routes for discovered plugins
- Icon resolution via static map of 20 common Lucide icons (no tree-
shaking penalty — bundle only +5KB over baseline)
Example plugin (plugins/example-dashboard/):
- Demonstrates SDK usage: Card components, backend API call, SDK reference
- Backend route: GET /api/plugins/example/hello
Tested: plugin discovery, static serving, API routes, path traversal
blocking, unknown plugin 404, bundle size (400KB vs 394KB baseline).
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| .. | ||
| public | ||
| src | ||
| eslint.config.js | ||
| index.html | ||
| package-lock.json | ||
| package.json | ||
| README.md | ||
| tsconfig.app.json | ||
| tsconfig.json | ||
| tsconfig.node.json | ||
| vite.config.ts | ||
Hermes Agent — Web UI
Browser-based dashboard for managing Hermes Agent configuration, API keys, and monitoring active sessions.
Stack
- Vite + React 19 + TypeScript
- Tailwind CSS v4 with custom dark theme
- shadcn/ui-style components (hand-rolled, no CLI dependency)
Development
# Start the backend API server
cd ../
python -m hermes_cli.main web --no-open
# In another terminal, start the Vite dev server (with HMR + API proxy)
cd web/
npm run dev
The Vite dev server proxies /api requests to http://127.0.0.1:9119 (the FastAPI backend).
Build
npm run build
This outputs to ../hermes_cli/web_dist/, which the FastAPI server serves as a static SPA. The built assets are included in the Python package via pyproject.toml package-data.
Structure
src/
├── components/ui/ # Reusable UI primitives (Card, Badge, Button, Input, etc.)
├── lib/
│ ├── api.ts # API client — typed fetch wrappers for all backend endpoints
│ └── utils.ts # cn() helper for Tailwind class merging
├── pages/
│ ├── StatusPage # Agent status, active/recent sessions
│ ├── ConfigPage # Dynamic config editor (reads schema from backend)
│ └── EnvPage # API key management with save/clear
├── App.tsx # Main layout and navigation
├── main.tsx # React entry point
└── index.css # Tailwind imports and theme variables