glance

name	glance
description	Create, update, and manage Glance dashboard widgets. Use when user wants to: add something to their dashboard, create a widget, track data visually, show metrics/stats, display API data, or monitor usage.
metadata	{"openclaw":{"emoji":"🖥️","homepage":"https://github.com/acfranzen/glance","requires":{"env":["GLANCE_URL"],"bins":["curl"]},"primaryEnv":"GLANCE_URL"}}

Glance

AI-extensible personal dashboard. Create custom widgets with natural language — the AI handles data collection.

Features

• Custom Widgets — Create widgets via AI with auto-generated JSX
• Agent Refresh — AI collects data on schedule and pushes to cache
• Dashboard Export/Import — Share widget configurations
• Credential Management — Secure API key storage
• Real-time Updates — Webhook-triggered instant refreshes

Quick Start

# Navigate to skill directory (if installed via ClawHub)
cd "$(clawhub list | grep glance | awk '{print $2}')"

# Or clone directly
git clone https://github.com/acfranzen/glance ~/.glance
cd ~/.glance

# Install dependencies
npm install

# Configure environment
cp .env.example .env.local
# Edit .env.local with your settings

# Start development server
npm run dev

# Or build and start production
npm run build && npm start

Dashboard runs at http://localhost:3333

Configuration

Edit .env.local:

# Server
PORT=3333
AUTH_TOKEN=your-secret-token        # Optional: Bearer token auth

# OpenClaw Integration (for instant widget refresh)
OPENCLAW_GATEWAY_URL=https://localhost:18789
OPENCLAW_TOKEN=your-gateway-token

# Database
DATABASE_PATH=./data/glance.db      # SQLite database location

Service Installation (macOS)

# Create launchd plist
cat > ~/Library/LaunchAgents/com.glance.dashboard.plist << 'EOF'
<?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>Label</key>
    <string>com.glance.dashboard</string>
    <key>ProgramArguments</key>
    <array>
        <string>/opt/homebrew/bin/npm</string>
        <string>run</string>
        <string>dev</string>
    </array>
    <key>WorkingDirectory</key>
    <string>~/.glance</string>
    <key>RunAtLoad</key>
    <true/>
    <key>KeepAlive</key>
    <true/>
    <key>StandardOutPath</key>
    <string>~/.glance/logs/stdout.log</string>
    <key>StandardErrorPath</key>
    <string>~/.glance/logs/stderr.log</string>
</dict>
</plist>
EOF

# Load service
mkdir -p ~/.glance/logs
launchctl load ~/Library/LaunchAgents/com.glance.dashboard.plist

# Service commands
launchctl start com.glance.dashboard
launchctl stop com.glance.dashboard
launchctl unload ~/Library/LaunchAgents/com.glance.dashboard.plist

Environment Variables

Variable	Description	Default
PORT	Server port	3333
AUTH_TOKEN	Bearer token for API auth	—
DATABASE_PATH	SQLite database path	./data/glance.db
OPENCLAW_GATEWAY_URL	OpenClaw gateway for webhooks	—
OPENCLAW_TOKEN	OpenClaw auth token	—

Requirements

• Node.js 20+
• npm or pnpm
• SQLite (bundled)

---

Widget Skill

Create and manage dashboard widgets. Most widgets use agent_refresh — you collect the data.

Quick Start

# Check Glance is running (list widgets)
curl -s -H "Origin: $GLANCE_URL" "$GLANCE_URL/api/widgets" | jq '.custom_widgets[].slug'

# Auth note: Local requests with Origin header bypass Bearer token auth
# For external access, use: -H "Authorization: Bearer $GLANCE_TOKEN"

# Refresh a widget (look up instructions, collect data, POST to cache)
sqlite3 $GLANCE_DATA/glance.db "SELECT json_extract(fetch, '$.instructions') FROM custom_widgets WHERE slug = 'my-widget'"
# Follow the instructions, then:
curl -X POST "$GLANCE_URL/api/widgets/my-widget/cache" \
  -H "Content-Type: application/json" \
  -H "Origin: $GLANCE_URL" \
  -d '{"data": {"value": 42, "fetchedAt": "'$(date -u +%Y-%m-%dT%H:%M:%SZ)'"}}'

# Verify in browser
browser action:open targetUrl:"$GLANCE_URL"

AI Structured Output Generation (REQUIRED)

When generating widget definitions, use the JSON Schema at docs/schemas/widget-schema.json with your AI model's structured output mode:

• Anthropic: Use tool_use with the schema
• OpenAI: Use response_format: { type: "json_schema", schema }

The schema enforces all required fields at generation time — malformed widgets cannot be produced.

Required Fields Checklist

Every widget MUST have these fields (the schema enforces them):

Field	Type	Notes
name	string	Non-empty, human-readable
slug	string	Lowercase kebab-case (my-widget)
source_code	string	Valid JSX with Widget function
default_size	{ w: 1-12, h: 1-20 }	Grid units
min_size	{ w: 1-12, h: 1-20 }	Cannot resize smaller
fetch.type	enum	"server_code" | "webhook" | "agent_refresh"
fetch.instructions	string	REQUIRED if type is agent_refresh
fetch.schedule	string	REQUIRED if type is agent_refresh (cron)
data_schema.type	"object"	Always object
data_schema.properties	object	Define each field
data_schema.required	array	MUST include "fetchedAt"
credentials	array	Use [] if none needed

Example: Minimal Valid Widget

{
  "name": "My Widget",
  "slug": "my-widget",
  "source_code": "function Widget({ serverData }) { return <div>{serverData?.value}</div>; }",
  "default_size": { "w": 2, "h": 2 },
  "min_size": { "w": 1, "h": 1 },
  "fetch": {
    "type": "agent_refresh",
    "schedule": "*/15 * * * *",
    "instructions": "## Data Collection\nCollect the data...\n\n## Cache Update\nPOST to /api/widgets/my-widget/cache"
  },
  "data_schema": {
    "type": "object",
    "properties": {
      "value": { "type": "number" },
      "fetchedAt": { "type": "string", "format": "date-time" }
    },
    "required": ["value", "fetchedAt"]
  },
  "credentials": []
}

---

⚠️ Widget Creation Checklist (MANDATORY)

Every widget must complete ALL steps before being considered done:

□ Step 1: Create widget definition (POST /api/widgets)
    - source_code with Widget function
    - data_schema (REQUIRED for validation)
    - fetch config (type + instructions for agent_refresh)
    
□ Step 2: Add to dashboard (POST /api/widgets/instances)
    - custom_widget_id matches definition
    - title and config set
    
□ Step 3: Populate cache (for agent_refresh widgets)
    - Data matches data_schema exactly
    - Includes fetchedAt timestamp
    
□ Step 4: Set up cron job (for agent_refresh widgets)
    - Simple message: "⚡ WIDGET REFRESH: {slug}"
    - Appropriate schedule (*/15 or */30 typically)
    
□ Step 5: BROWSER VERIFICATION (MANDATORY)
    - Open http://localhost:3333
    - Widget is visible on dashboard
    - Shows actual data (not loading spinner)
    - Data values match what was cached
    - No errors or broken layouts
    
⛔ DO NOT report widget as complete until Step 5 passes!

Quick Reference

• Full SDK docs: See docs/widget-sdk.md in the Glance repo
• Component list: See references/components.md

Widget Package Structure

Widget Package
├── meta (name, slug, description, author, version)
├── widget (source_code, default_size, min_size)
├── fetch (server_code | webhook | agent_refresh)
├── dataSchema? (JSON Schema for cached data - validates on POST)
├── cache (ttl, staleness, fallback)
├── credentials[] (API keys, local software requirements)
├── config_schema? (user options)
└── error? (retry, fallback, timeout)

Fetch Type Decision Tree

Is data available via API that the widget can call?
├── YES → Use server_code
└── NO → Does an external service push data?
    ├── YES → Use webhook
    └── NO → Use agent_refresh (YOU collect it)

Scenario	Fetch Type	Who Collects Data?
Public/authenticated API	server_code	Widget calls API at render
External service pushes data	webhook	External service POSTs to cache
Local CLI tools	agent_refresh	YOU (the agent) via PTY/exec
Interactive terminals	agent_refresh	YOU (the agent) via PTY
Computed/aggregated data	agent_refresh	YOU (the agent) on a schedule

⚠️ agent_refresh means YOU are the data source. You set up a cron to remind yourself, then YOU collect the data using your tools (exec, PTY, browser, etc.) and POST it to the cache.

API Endpoints

Widget Definitions

Method	Endpoint	Description
POST	/api/widgets	Create widget definition
GET	/api/widgets	List all definitions
GET	/api/widgets/:slug	Get single definition
PATCH	/api/widgets/:slug	Update definition
DELETE	/api/widgets/:slug	Delete definition

Widget Instances (Dashboard)

Method	Endpoint	Description
POST	/api/widgets/instances	Add widget to dashboard
GET	/api/widgets/instances	List dashboard widgets
PATCH	/api/widgets/instances/:id	Update instance (config, position)
DELETE	/api/widgets/instances/:id	Remove from dashboard

Credentials

Method	Endpoint	Description
GET	/api/credentials	List credentials + status
POST	/api/credentials	Store credential
DELETE	/api/credentials/:id	Delete credential

Creating a Widget

Full Widget Package Structure

{
  "name": "GitHub PRs",
  "slug": "github-prs",
  "description": "Shows open pull requests",
  
  "source_code": "function Widget({ serverData }) { ... }",
  "default_size": { "w": 2, "h": 2 },
  "min_size": { "w": 1, "h": 1 },
  "refresh_interval": 300,
  
  "credentials": [
    {
      "id": "github",
      "type": "api_key",
      "name": "GitHub Personal Access Token",
      "description": "Token with repo scope",
      "obtain_url": "https://github.com/settings/tokens"
    }
  ],
  
  "fetch": {
    "type": "agent_refresh",
    "schedule": "*/5 * * * *",
    "instructions": "Fetch open PRs from GitHub API and POST to cache endpoint",
    "expected_freshness_seconds": 300,
    "max_staleness_seconds": 900
  },
  
  "cache": {
    "ttl_seconds": 300,
    "max_staleness_seconds": 900,
    "storage": "sqlite",
    "on_error": "use_stale"
  },
  
  "setup": {
    "description": "Configure GitHub token",
    "agent_skill": "Store GitHub PAT via /api/credentials",
    "verification": {
      "type": "cache_populated",
      "target": "github-prs"
    },
    "idempotent": true
  }
}

Fetch Types

Type	When to Use	Data Flow
server_code	Widget can call API directly	Widget → server_code → API
agent_refresh	Agent must fetch/compute data	Agent → POST /cache → Widget reads
webhook	External service pushes data	External → POST /cache → Widget reads

Most widgets should use agent_refresh — the agent fetches data on a schedule and pushes to the cache endpoint.

Step 1: Create Widget Definition

POST /api/widgets
Content-Type: application/json

{
  "name": "GitHub PRs",
  "slug": "github-prs",
  "description": "Shows open pull requests",
  "source_code": "function Widget({ serverData }) { ... }",
  "default_size": { "w": 2, "h": 2 },
  "credentials": [...],
  "fetch": { "type": "agent_refresh", "schedule": "*/5 * * * *", ... },
  "data_schema": {
    "type": "object",
    "properties": {
      "prs": { "type": "array", "description": "List of PR objects" },
      "fetchedAt": { "type": "string", "format": "date-time" }
    },
    "required": ["prs", "fetchedAt"]
  },
  "cache": { "ttl_seconds": 300, ... }
}

data_schema (REQUIRED) defines the data contract between the fetcher and the widget. Cache POSTs are validated against it — malformed data returns 400.

⚠️ Always include data_schema when creating widgets. This ensures:

1. Data validation on cache POSTs (400 on schema mismatch)
2. Clear documentation of expected data structure
3. AI agents know the exact format to produce

Step 2: Add to Dashboard

POST /api/widgets/instances
Content-Type: application/json

{
  "type": "custom",
  "title": "GitHub PRs",
  "custom_widget_id": "cw_abc123",
  "config": { "owner": "acfranzen", "repo": "libra" }
}

Step 3: Populate Cache (for agent_refresh)

POST /api/widgets/github-prs/cache
Content-Type: application/json

{
  "data": {
    "prs": [...],
    "fetchedAt": "2026-02-03T14:00:00Z"
  }
}

⚠️ If the widget has a dataSchema, the cache endpoint validates your data against it. Bad data returns 400 with details. Always check the widget's schema before POSTing:

GET /api/widgets/github-prs
# Response includes dataSchema showing required fields and types

Step 4: Browser Verification (REQUIRED)

⚠️ MANDATORY: Every widget creation and refresh MUST end with browser verification.

Never consider a widget "done" until you've visually confirmed it renders correctly on the dashboard.

// REQUIRED: Open dashboard and verify widget renders
browser({ 
  action: 'open', 
  targetUrl: 'http://localhost:3333',
  profile: 'openclaw'
});

// Take a snapshot and check the widget
browser({ action: 'snapshot' });

// Look for:
// 1. Widget is visible on the dashboard
// 2. Shows actual data, NOT "Waiting for data..." or loading spinner
// 3. Data values match what was pushed to cache
// 4. No error messages displayed
// 5. Layout looks correct (not broken/overlapping)

Verification checklist (must ALL be true):

• Widget visible on dashboard grid
• Title displays correctly
• Data renders (not stuck on loading)
• Values match cached data
• No error states or broken layouts
• "Updated X ago" footer shows recent timestamp

Common issues and fixes:

Symptom	Cause	Fix
"Waiting for data..."	Cache empty	POST data to /api/widgets/{slug}/cache
Widget not visible	Not added to dashboard	POST /api/widgets/instances
Wrong/old data	Slug mismatch	Check slug matches between definition and cache POST
Broken layout	Bad JSX in source_code	Check widget code for syntax errors
"No data" after POST	Schema validation failed	Check data matches data_schema

If verification fails, fix the issue before reporting success.

Widget Code Template (agent_refresh)

For agent_refresh widgets, use serverData prop (NOT useData hook):

function Widget({ serverData }) {
  const data = serverData;
  const loading = !serverData;
  const error = serverData?.error;
  
  if (loading) return <Loading message="Waiting for data..." />;
  if (error) return <ErrorDisplay message={error} />;
  
  // NOTE: Do NOT wrap in <Card> - the framework wrapper (CustomWidgetWrapper) 
  // already provides the outer card with title, refresh button, and footer.
  // Just render your content directly.
  return (
    <div className="space-y-3">
      <List items={data.prs?.map(pr => ({
        title: pr.title,
        subtitle: `#${pr.number} by ${pr.author}`,
        badge: pr.state
      })) || []} />
    </div>
  );
}

Important: The widget wrapper (CustomWidgetWrapper) provides:

• Outer <Card> container with header (widget title)
• Refresh button and "Updated X ago" footer
• Loading/error states

Your widget code should just render the content — no Card, no CardHeader, no footer.

Key difference: agent_refresh widgets receive data via serverData prop, NOT by calling useData(). The agent pushes data to /api/widgets/{slug}/cache.

Server Code (Legacy Alternative)

Prefer agent_refresh over server_code. Only use server_code when the widget MUST execute code at render time (rare).

// Only for fetch.type = "server_code" widgets
const token = await getCredential('github');
const response = await fetch('https://api.github.com/repos/owner/repo/pulls', {
  headers: { 'Authorization': `Bearer ${token}` }
});
return await response.json();

Available: fetch, getCredential(provider), params, console Blocked: require, eval, fs, process, global

Agent Refresh Contract

⚠️ CRITICAL: For agent_refresh widgets, YOU (the OpenClaw agent) are the data collector.

This is NOT an external API or service. YOU must:

1. Set up a cron job to remind yourself to collect data on a schedule
2. Use your own tools (PTY, exec, browser, etc.) to gather the data
3. Parse the output into structured JSON
4. POST to the cache endpoint so the widget can display it

The Pattern

┌─────────────────────────────────────────────────────────────┐
│  Cron fires → Agent wakes up → Agent collects data →        │
│  Agent POSTs to /cache → Widget displays fresh data         │
└─────────────────────────────────────────────────────────────┘

Step-by-Step for agent_refresh Widgets

1. Create the widget with fetch.type = "agent_refresh" and detailed fetch.instructions
2. Set up a cron job targeting YOUR main session (message is just the slug):

   cron.add({
     name: "Widget: My Data Refresh",
     schedule: { kind: "cron", expr: "*/15 * * * *" },
     payload: { 
       kind: "systemEvent", 
       text: "⚡ WIDGET REFRESH: my-widget"  // Just the slug!
     },
     sessionTarget: "main"  // Reminds YOU, not an isolated session
   })
   

3. When you receive the refresh message, look up fetch.instructions from the DB and spawn a subagent:

   // Parse slug from message
   const slug = message.replace('⚡ WIDGET REFRESH:', '').trim();
   // Query widget's fetch.instructions
   const widget = db.query('SELECT fetch FROM custom_widgets WHERE slug = ?', slug);
   // Spawn subagent with the instructions
   sessions_spawn({ task: widget.fetch.instructions, model: 'haiku' });
   

4. The subagent collects the data using your tools:
   • exec for shell commands
   • PTY for interactive CLI tools (like claude /status)
   • browser for web scraping
   • API calls via web_fetch
5. POST the data to the cache:

   POST /api/widgets/{slug}/cache
   Content-Type: application/json
   
   {
     "data": {
       "myValue": 42,
       "fetchedAt": "2026-02-03T18:30:00.000Z"
     }
   }
   

Writing Excellent fetch.instructions

The fetch.instructions field is the single source of truth for how to collect widget data. Write them clearly so any subagent can follow them.

Required sections:

## Data Collection
Exact commands to run with full paths and flags.
Include PTY requirements if interactive.

## Data Transformation
Exact JSON structure expected.
Include field descriptions and examples.

## Cache Update
Full URL, required headers, body format.

## Browser Verification
Confirm the widget renders correctly.

Good example:

## Data Collection
```bash
gog gmail search "in:inbox" --json

Data Transformation

Take first 5-8 emails, generate AI summary (3-5 words) for each:

{
  "emails": [{"id": "...", "from": "...", "subject": "...", "summary": "AI summary here", "unread": true}],
  "fetchedAt": "ISO timestamp"
}

Cache Update

POST to: http://localhost:3333/api/widgets/recent-emails/cache Header: Origin: http://localhost:3333 Body: { "data": }

Browser Verification

Open http://localhost:3333 and confirm widget shows emails with AI summaries.

**Bad example (too vague):**

Get emails and post to cache.

### Real Example: Claude Max Usage Widget

This widget shows Claude CLI usage stats. The data comes from running `claude` in a PTY and navigating to `/status → Usage`.

**The agent's job every 15 minutes:**

1. Spawn PTY: exec("claude", { pty: true })
2. Send: "/status" + Enter
3. Navigate to Usage tab (Right arrow keys)
4. Parse the output: Session %, Week %, Extra %
5. POST to /api/widgets/claude-code-usage/cache
6. Kill the PTY session
7. ⚠️ VERIFY: Open browser to http://localhost:3333 and confirm widget displays new data

**This is YOUR responsibility as the agent.** The widget just displays whatever data is in the cache.

### Subagent Task Template for Refreshes

When spawning subagents for widget refreshes, always include browser verification:

```javascript
sessions_spawn({
  task: `${fetchInstructions}

## REQUIRED: Browser Verification
After posting to cache, verify the widget renders correctly:
1. Open http://localhost:3333 in browser
2. Find the widget on the dashboard
3. Confirm it shows the data you just posted
4. Report any rendering issues

Do NOT report success until browser verification passes.`,
  model: 'haiku',
  label: `${slug}-refresh`
});

Cache Endpoint

POST /api/widgets/{slug}/cache
Content-Type: application/json

{
  "data": {
    "packages": 142,
    "fetchedAt": "2026-02-03T18:30:00.000Z"
  }
}

Immediate Refresh via Webhook

For agent_refresh widgets, users can trigger immediate refreshes via the UI refresh button.

When configured with OPENCLAW_GATEWAY_URL and OPENCLAW_TOKEN environment variables, clicking the refresh button will:

1. Store a refresh request in the database (fallback for polling)
2. Immediately POST a wake notification to OpenClaw via /api/sessions/wake
3. The agent receives a prompt to refresh that specific widget now

This eliminates the delay of waiting for the next heartbeat poll.

Environment variables (add to .env.local):

OPENCLAW_GATEWAY_URL=http://localhost:18789
OPENCLAW_TOKEN=your-gateway-token

How it works:

1. User clicks refresh button on widget
2. Glance POSTs to /api/widgets/{slug}/refresh
3. If webhook configured, Glance immediately notifies OpenClaw: ⚡ WIDGET REFRESH: Refresh the "{slug}" widget now and POST to cache
4. Agent wakes up, collects fresh data, POSTs to cache
5. Widget re-renders with updated data

Response includes webhook status:

{
  "status": "refresh_requested",
  "webhook_sent": true,
  "fallback_queued": true
}

If webhook fails or isn't configured, the DB fallback ensures the next heartbeat/poll will pick it up.

Rules

• Always include fetchedAt timestamp
• Don't overwrite on errors - let widget use stale data
• Use main session cron so YOU handle the collection, not an isolated agent

## Credential Requirements Format

### Credential Types

| Type | Storage | Description | Use For |
|------|---------|-------------|---------|
| `api_key` | Glance DB (encrypted) | API tokens stored in Glance | GitHub PAT, OpenWeather key |
| `local_software` | Agent's machine | Software that must be installed | Homebrew, Docker |
| `agent` | Agent environment | Auth that lives on the agent | `gh` CLI auth, `gcloud` auth |
| `oauth` | Glance DB | OAuth tokens (future) | Google Calendar |

### Examples

```json
{
  "credentials": [
    {
      "id": "github",
      "type": "api_key",
      "name": "GitHub Personal Access Token",
      "description": "Token with repo scope",
      "obtain_url": "https://github.com/settings/tokens",
      "obtain_instructions": "Create token with 'repo' scope"
    },
    {
      "id": "homebrew",
      "type": "local_software",
      "name": "Homebrew",
      "check_command": "which brew",
      "install_url": "https://brew.sh"
    },
    {
      "id": "github_cli",
      "type": "agent",
      "name": "GitHub CLI",
      "description": "Agent needs gh CLI authenticated to GitHub",
      "agent_tool": "gh",
      "agent_auth_check": "gh auth status",
      "agent_auth_instructions": "Run `gh auth login` on the machine running OpenClaw"
    }
  ]
}

When to use agent type: Use for agent_refresh widgets where the agent collects data using CLI tools that have their own auth (like gh, gcloud, aws). These credentials aren't stored in Glance — they exist in the agent's environment.

Common Credential Providers

Provider	ID	Description
GitHub	github	GitHub API (PAT with repo scope)
Anthropic	anthropic	Claude API (Admin key for usage)
OpenAI	openai	GPT API (Admin key for usage)
OpenWeather	openweather	Weather data API
Linear	linear	Linear API
Notion	notion	Notion API

Export/Import Packages

Export

GET /api/widgets/{slug}/export

Returns: { "package": "!GW1!eJxVj8EKwj..." }

Import

POST /api/widgets/import
Content-Type: application/json

{
  "package": "!GW1!eJxVj8EKwj...",
  "dry_run": false,
  "auto_add_to_dashboard": true
}

The !GW1! prefix indicates Glance Widget v1 format (compressed base64 JSON).

Import Response with Cron

{
  "valid": true,
  "widget": { "id": "cw_abc", "slug": "homebrew-status" },
  "cronSchedule": {
    "expression": "*/15 * * * *",
    "instructions": "Run brew list...",
    "slug": "homebrew-status"
  }
}

When cronSchedule is returned, OpenClaw should register a cron job.

Key UI Components

Component	Use For
Card	Widget container (always use className="h-full")
List	Items with title/subtitle/badge
Stat	Single metric with trend indicator
Progress	Progress bars with variants
Badge	Status labels (success/warning/error)
Stack	Flexbox layout (row/column)
Grid	CSS Grid layout
Loading	Loading spinner
ErrorDisplay	Error with retry button

See references/components.md for full props.

Hooks

// Fetch data (BOTH args required!)
const { data, loading, error, refresh } = useData('github', {});
const { data } = useData('github', { endpoint: '/pulls', params: { state: 'open' } });

// Get widget config
const config = useConfig();

// Widget-local state
const { state, setState } = useWidgetState('counter', 0);

⚠️ useData requires both arguments. Pass empty {} if no query needed.

Error Handling

if (error?.code === 'CREDENTIAL_MISSING') {
  return <Card><CardContent>
    <Icons.Lock className="h-8 w-8" />
    <p>GitHub token required</p>
  </CardContent></Card>;
}

Error codes: CREDENTIAL_MISSING, RATE_LIMITED, NETWORK_ERROR, API_ERROR

Best Practices

1. Always check credentials before creating widgets
2. Use meaningful names: github-prs-libra not widget-1
3. Include fetchedAt in all data for staleness tracking
4. Handle errors gracefully with retry options
5. Confirm actions: "Done! Widget added to dashboard."
6. Size appropriately: Lists 1x1, charts 2x2

Reading Dashboard Data

To summarize dashboard for user:

1. GET /api/widgets/instances → list instances
2. For each: POST /api/widgets/:slug/execute
3. Combine into natural language summary

---

⚠️ Rules & Gotchas

1. Use JSON Schema for generation — docs/schemas/widget-schema.json enforces all required fields
2. Browser verify EVERYTHING — don't report success until you see the widget render correctly
3. agent_refresh = YOU collect data — the widget just displays what you POST to cache
4. fetch.instructions is the source of truth — cron jobs just send the slug, you look up instructions
5. Always include fetchedAt — widgets need timestamps for "Updated X ago" display
6. data_schema is REQUIRED — cache POSTs validate against it, malformed data returns 400
7. credentials is REQUIRED — use empty array [] if no credentials needed
8. Don't wrap in Card — the framework provides the outer card, you render content only
9. Use Haiku for refresh subagents — mechanical data collection doesn't need Opus
10. Mark refresh requests as processed — DELETE /api/widgets/{slug}/refresh after handling
11. Spawn subagents for refreshes — don't block main session with PTY/long-running work

Environment Variables

Variable	Description	Example
GLANCE_URL	Glance server URL	http://localhost:3333
GLANCE_DATA	Path to SQLite database	/tmp/glance-test/data
OPENCLAW_GATEWAY_URL	For webhook refresh notifications	https://localhost:18789
OPENCLAW_TOKEN	Gateway auth token	d551fe97...

Learnings (Feb 2026)

• Webhook refresh works — Glance POSTs to OpenClaw gateway, agent wakes immediately
• Simple cron messages — just ⚡ WIDGET REFRESH: {slug}, agent looks up instructions
• AI summaries need AI — for recent-emails, YOU generate the summaries, not some API
• icalBuddy for iCloud — gog calendar doesn't work for iCloud, use /opt/homebrew/bin/icalBuddy
• wttr.in for weather — free, no API key, JSON format: wttr.in/City?format=j1