Invoice Generator Agent

Invoice Generator Agent

Generates professional invoices for WeLabelData Inc. with CRM integration

When to use

• "generate invoice for deal-enterprise-002"
• "create invoice for Enterprise Corp"
• "invoice for Client D"
• When deal.stage = 'delivered' and an invoice needs to be issued

How to execute

Step 1: Run the agent

By Deal ID:

cd $AGENTS_PATH/invoice-generator
python3 invoice_generator_agent.py --deal deal-enterprise-002

By client name:

python3 invoice_generator_agent.py --client "Enterprise Corp"

Interactive mode (shows all deals with stage='delivered'):

python3 invoice_generator_agent.py --interactive

Dry-run (check without writing):

python3 invoice_generator_agent.py --dry-run --deal deal-enterprise-002

Step 2: The agent will execute

1. Load deal from deals.csv + client/company/contact info
2. Validate: stage must be 'delivered' or 'in_progress'
3. Get invoice number: atomically from invoice_tracker.json (with file locking)
4. Generate invoice: call generate_invoice.py → HTML + PDF
5. Update CRM: deals.csv → stage='invoiced', invoice_date, invoice_number
6. Show for review:

   ✓ Invoice #100 generated
   Client:      Client D Inc.
   Amount:      $1,000.00 USD
   Description: Training services
   Files:       docs/invoices/Invoice_100_WeLabelData_ClientD.pdf
   
   Review the invoice and choose:
   1. Open PDF for review
   2. Send to client now
   3. Skip sending (manual delivery)
   4. Cancel (delete invoice)
   

7. Process user decision:
   • Open PDF → opens PDF viewer
   • Send now → shows instructions for sending email (placeholder for now)
   • Skip → generates but does not send (for manual delivery)
   • Cancel → deletes files, rolls back invoice number, does not change CRM
8. Log activity → activities.csv
9. Send Telegram → Saved Messages with details
10. Write log → invoice_generator_log.json

Step 3: If email needs to be sent

Email sending is not yet implemented; the agent will show instructions:

Email sending not yet implemented in this version.
Please send the invoice manually using your email client.

To: bob@clientd.example.com
Subject: Invoice #100 - WeLabelData - Training services
Attachment: docs/invoices/Invoice_100_WeLabelData_ClientD.pdf

Use skill /email-send-direct or google-tools to send.

Human Approval

IMPORTANT: The agent ALWAYS requires human review before sending.

Review options:

• Open PDF → opens PDF for viewing, then asks again
• Send now → (placeholder for now) shows instructions for email
• Skip sending (DEFAULT) → generates invoice, updates CRM, does not send
• Cancel → full rollback (deletes files, restores invoice_tracker, does not change deals.csv)

Rollback

If the user chooses "Cancel":

1. Deletes invoice files (HTML + PDF)
2. Restores invoice_tracker.json to the previous number
3. Does NOT change deals.csv (no CRM update was made)
4. Logs 'cancelled' activity
5. Sends Telegram notification

Client mapping

The agent automatically maps CRM companies → client keys for generate_invoice.py:

Unknown clients → custom client with company.name

Data Flow

Reads:

• sales/crm/relationships/deals.csv
• sales/crm/relationships/clients.csv
• sales/crm/contacts/companies.csv
• sales/crm/contacts/people.csv
• docs/company/invoice_tracker.json

Writes:

• docs/invoices/Invoice_{n}_WeLabelData_{Client}.html
• docs/invoices/Invoice_{n}_WeLabelData_{Client}.pdf
• sales/crm/relationships/deals.csv (update: stage, invoice_date, invoice_number)
• sales/crm/activities.csv (append)
• docs/company/invoice_tracker.json (increment)
• agents/data/invoice_generator_log.json
• Telegram notification via tg-tools

Error Handling

Testing

Dry-run

python3 invoice_generator_agent.py --dry-run --deal deal-enterprise-002

Shows parameters without creating files or CRM updates.

Full test with rollback

python3 invoice_generator_agent.py --interactive
# Select deal
# Review invoice
# Choose "4. Cancel"
# Verify that files are deleted, invoice_tracker unchanged

Examples

Generate for a specific deal

python3 invoice_generator_agent.py --deal deal-enterprise-002

Find deal by client

python3 invoice_generator_agent.py --client "Client D"

Interactive selection

python3 invoice_generator_agent.py --interactive

Generate without approval prompt

python3 invoice_generator_agent.py --no-approve --deal deal-enterprise-002

Auto-skip sending, just generates and logs.

Integration

Upstream:

• Requires deals.csv with stage='delivered'
• Requires CRM data (clients, companies, people)
• Uses generate_invoice.py

Downstream:

• Payment Tracker reads deals with stage='invoiced'
• Daily Briefing can show recent invoices
• Manual workflows use the generated PDF files

File Locking

Invoice numbering uses fcntl.flock() for atomic increment:

• Prevents race conditions during parallel generation
• Critical section: read invoice_tracker.json → +1 → write

Output example

Generating invoice #100...

==================================================
✓ Invoice #100 generated
==================================================
Client:      Client D Inc.
Contact:     Bob
Amount:      $1,000.00 USD
Description: Training services
==================================================
Files:
  PDF:  /Users/.../docs/invoices/Invoice_100_WeLabelData_ClientD.pdf
  HTML: /Users/.../docs/invoices/Invoice_100_WeLabelData_ClientD.html
==================================================

Review the invoice and choose:
  1. Open PDF for review
  2. Send to client now
  3. Skip sending (manual delivery)
  4. Cancel (delete invoice)

Choice [3]: 3

✓ Done! Invoice #100 generated successfully.

Telegram notification:

Invoice Generated

Invoice #100 | $1,000.00 USD
Client: Client D Inc. (Bob)
Description: Training services

Status: Skipped
Files: /Users/.../Invoice_100_WeLabelData_ClientD.pdf

Deal: deal-clientd-001 → stage updated to 'invoiced'

Related skills

• /invoice - original skill (direct call to generate_invoice.py)
• /email-send-direct - for sending email
• /log-activity - for logging CRM activities
• /telegram-send - for notifications

Notes

• Invoice numbering is global (not per-client, not per-year)
• Re-generation keeps the same number (overwrites files)
• Default action: "Skip sending" (generates, user sends manually)
• All non-USA clients receive international wire details
• Payment terms: 7 days (default, uses payment tracker)