Skill: cehd5170/gmail-checker (version 1.0.0)

--- name: gmail description: "Send, read, search, and manage Gmail emails via the Gmail REST API. Use when asked to send an email, check inbox, read messages, search mail, reply to emails, draft emails, or manage labels. Triggers on phrases like 'send an email', 'check my email', 'reply to', 'draft a message', 'search my inbox', 'read my latest emails', 'send a gmail'." user-invocable: true metadata: { "openclaw": { "emoji": "📧", "requires": { "bins": ["curl", "jq"], "env": ["GMAIL_ACCESS_TOKEN"] }, }, } --- # Gmail Skill Send, read, search, reply, and manage Gmail directly from OpenClaw. ## Setup ### Option 1: OAuth2 Access Token (recommended) 1. Create OAuth2 credentials at https://console.cloud.google.com/apis/credentials 2. Enable the Gmail API at https://console.cloud.google.com/apis/library/gmail.googleapis.com 3. Obtain an access token via OAuth2 flow with scopes: - `https://www.googleapis.com/auth/gmail.send` - `https://www.googleapis.com/auth/gmail.readonly` - `https://www.googleapis.com/auth/gmail.modify` 4. Set the environment variable: ```bash export GMAIL_ACCESS_TOKEN="your-access-token" ``` ### Option 2: Refresh Token (long-lived) If you have a refresh token, set these additional variables: ```bash export GMAIL_CLIENT_ID="your-client-id" export GMAIL_CLIENT_SECRET="your-client-secret" export GMAIL_REFRESH_TOKEN="your-refresh-token" ``` All API calls use Bearer auth: ```bash curl -s -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ "https://gmail.googleapis.com/gmail/v1/users/me/..." ``` ### Token Refresh If `GMAIL_REFRESH_TOKEN` is set, refresh the access token before any API call: ```bash GMAIL_ACCESS_TOKEN=$(curl -s -X POST "https://oauth2.googleapis.com/token" \ -d "client_id=$GMAIL_CLIENT_ID" \ -d "client_secret=$GMAIL_CLIENT_SECRET" \ -d "refresh_token=$GMAIL_REFRESH_TOKEN" \ -d "grant_type=refresh_token" | jq -r '.access_token') ``` --- ## Commands ### Send an Email Parse the user's request for: | Field | Required | Description | |-------|----------|-------------| | to | yes | Recipient email address(es), comma-separated | | subject | yes | Email subject line | | body | yes | Email body (plain text or HTML) | | cc | no | CC recipients | | bcc | no | BCC recipients | | attachments | no | File paths to attach | | research | no | Topic to web-search for enriching the email body | #### Web Research (if applicable) If the user wants research-informed content: 1. Use `web_search` to find relevant information. 2. Fetch key pages with `xurl` or `curl` for details. 3. Incorporate findings into the email body naturally. #### Compose and Send Build a raw RFC 2822 message and base64url-encode it: ```bash # Build raw message RAW_MESSAGE=$(cat <<'MSGEOF' From: me To: [REDACTED_SECRET] Subject: Email subject Content-Type: text/html; charset="UTF-8" MIME-Version: 1.0 <html><body> <p>Email body here.</p> </body></html> MSGEOF ) # Base64url encode (no padding, URL-safe) ENCODED=$(echo -n "$RAW_MESSAGE" | base64 -w 0 | tr '+/' '-_' | tr -d '=') # Send curl -s -X POST \ -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages/send" \ -d "{\"raw\": \"$ENCODED\"}" ``` Extract the message ID from the response and report success. --- ### Read / Check Inbox List recent messages: ```bash # List latest messages (default 10) curl -s -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages?maxResults=10&labelIds=INBOX" ``` For each message, fetch full details: ```bash curl -s -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages/{MESSAGE_ID}?format=full" ``` Extract and display: - **From**: sender - **Subject**: subject line - **Date**: when received - **Snippet**: preview text - **Body**: decoded from base64 (plain text part preferred) Decode the body: ```bash # Extract plain text body from payload parts BODY=$(echo "$RESPONSE" | jq -r ' .payload.parts[]? | select(.mimeType == "text/plain") | .body.data' | base64 -d 2>/dev/null) # Fallback: single-part message if [ -z "$BODY" ]; then BODY=$(echo "$RESPONSE" | jq -r '.payload.body.data' | base64 -d 2>/dev/null) fi ``` --- ### Search Emails ```bash # Search with Gmail query syntax curl -s -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages?q=QUERY&maxResults=10" ``` Gmail query examples: - `from:[REDACTED_SECRET]` — from a specific sender - `subject:invoice` — subject contains "invoice" - `is:unread` — unread messages - `after:2026/01/01 before:2026/03/01` — date range - `has:attachment filename:pdf` — PDFs attached - `label:important` — labeled important Fetch and display matching messages using the same read flow above. --- ### Reply to an Email 1. Fetch the original message to get `threadId`, `Message-ID` header, and sender. 2. Build the reply with proper headers: ```bash RAW_REPLY=$(cat <<'MSGEOF' From: me To: [REDACTED_SECRET] Subject: Re: Original subject In-Reply-To: <[REDACTED_SECRET]> References: <[REDACTED_SECRET]> Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Reply body here. MSGEOF ) ENCODED=$(echo -n "$RAW_REPLY" | base64 -w 0 | tr '+/' '-_' | tr -d '=') curl -s -X POST \ -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages/send" \ -d "{\"raw\": \"$ENCODED\", \"threadId\": \"THREAD_ID\"}" ``` --- ### Draft an Email Create a draft without sending: ```bash ENCODED=$(echo -n "$RAW_MESSAGE" | base64 -w 0 | tr '+/' '-_' | tr -d '=') curl -s -X POST \ -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ "https://gmail.googleapis.com/gmail/v1/users/me/drafts" \ -d "{\"message\": {\"raw\": \"$ENCODED\"}}" ``` Report the draft ID so the user can review it in Gmail before sending. --- ### Manage Labels ```bash # List all labels curl -s -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ "https://gmail.googleapis.com/gmail/v1/users/me/labels" | jq '.labels[] | {name, id}' # Add label to a message curl -s -X POST \ -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages/{MESSAGE_ID}/modify" \ -d '{"addLabelIds": ["LABEL_ID"]}' # Remove label curl -s -X POST \ -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages/{MESSAGE_ID}/modify" \ -d '{"removeLabelIds": ["LABEL_ID"]}' # Mark as read curl -s -X POST \ -H "Authorization: Bearer $GMAIL_ACCESS_TOKEN" \ -H "Content-Type: application/json" \ "https://gmail.googleapis.com/gmail/v1/users/me/messages/{MESSAGE_ID}/modify" \ -d '{"removeLabelIds": ["UNREAD"]}' ``` --- ## Network Policy To use this skill inside NemoClaw's sandbox, add a Gmail network policy preset. Create or add to your sandbox policy: ```yaml network_policies: google_gmail: name: google_gmail endpoints: - host: gmail.googleapis.com port: 443 protocol: rest enforcement: enforce tls: terminate rules: - allow: { method: GET, path: "/**" } - allow: { method: POST, path: "/**" } - host: oauth2.googleapis.com port: 443 protocol: rest enforcement: enforce tls: terminate rules: - allow: { method: POST, path: "/token" } - host: accounts.google.com port: 443 protocol: rest enforcement: enforce tls: terminate rules: - allow: { method: GET, path: "/**" } - allow: { method: POST, path: "/**" } ``` --- ## Notes - Gmail API rate limit: 250 quota units per second per user. - Sending has a daily limit of 2,000 messages for Google Workspace, 500 for free Gmail. - Access tokens expire after ~1 hour. Use refresh token flow for long-running sessions. - Attachments require multipart MIME encoding — for large files, use the resumable upload endpoint. ## Examples ``` # Send a simple email /gmail send to:[REDACTED_SECRET] subject:"Standup notes" body:"Here are today's updates..." # Check inbox /gmail inbox # Search for unread emails from a specific sender /gmail search "from:[REDACTED_SECRET] is:unread" # Reply to the latest email /gmail reply latest "Thanks, I'll look into this." # Draft an email with web research /gmail draft to:[REDACTED_SECRET] subject:"Redis 8 migration plan" --search "Redis 8 breaking changes" # Mark all unread as read /gmail read-all ```


Security scan verdicts — ClawScan: suspicious | static analysis: clean | VirusTotal: clean | SkillSpector: suspicious (MEDIUM)