Prompt Recipes

This page contains ready-to-use prompts for common wire harness design tasks. Copy, modify, and use these as starting points.

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Design Creation

Create a Row of Connectors

Create 5 connectors named J1 through J5.
Place them in a horizontal row starting at position (100, 200).
Space them 150 units apart.
Each connector should have 8 pins.

Variations:

• Change "horizontal" to "vertical" for column layout
• Adjust pin count per connector
• Add part numbers: "Use part number MOLEX-123 for all"

Create Component with Specific Pins

Create a 12-pin connector called "ECU_MAIN" with these pin names:
- Pin 1: VBAT
- Pin 2: GND
- Pin 3-6: CAN_H, CAN_L, LIN, K_LINE
- Pin 7-12: AIN1 through AIN6

Generate Wire Harness from Pin List

Create wires connecting these pin pairs:
ECU.PIN1 to FUSE_BOX.PIN3 (red, 14AWG)
ECU.PIN2 to CHASSIS.GND (black, 14AWG)
ECU.CAN_H to BCM.CAN_H (yellow, 22AWG)
ECU.CAN_L to BCM.CAN_L (green, 22AWG)

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Design Queries

Find Unconnected Pins

List all components that have unconnected pins.
Show the component name and which pins are unconnected.

Find Wires by Property

Show me all wires that:
- Have no color assigned, OR
- Have gauge less than 18AWG, OR
- Are missing a part number

Audit Power Wires

List all wires connected to pins named "VBAT", "VCC", "PWR", or "+12V".
For each, show: wire name, gauge, and calculated length.
Flag any power wires using gauge smaller than 16AWG.

List Components Without Part Numbers

Find all components where the part number is empty or "TBD".
Show the component name and how many pins it has.

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Design Modifications

Bulk Update Wire Colors

Update all wires connected to pins containing "GND" or "GROUND":
- Set color to black (BK)
- Set gauge to 14AWG if currently smaller

Rename Components with Prefix

Rename all connectors that start with "CONN" to start with "J" instead.
Example: CONN1 becomes J1, CONN_MAIN becomes J_MAIN.

Update Wire Gauge by Current

For all wires, set the gauge based on this table:
- If length < 1m and current < 5A: 22AWG
- If length < 2m and current < 10A: 18AWG
- If length < 3m and current < 15A: 16AWG
- Otherwise: 14AWG

Assume current based on pin names:
- PWR/VBAT pins: 15A
- Signal pins: 1A
- GND pins: 15A

Add Length Margin

For all wires, add 10% margin to the calculated length.
Round up to the nearest 50mm.
This accounts for service loops and routing tolerance.

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Validation Prompts

Pre-Manufacturing Check

Perform a pre-manufacturing validation:
1. List any unconnected pins
2. List any wires missing color or gauge
3. List any components missing part numbers
4. Check for duplicate wire names
5. Verify all bundles have at least one wire routed through them

Electrical Validation

Check for electrical issues:
1. Are there any pins with multiple wires connected? (potential short)
2. Are power and ground wires using appropriate gauge?
3. Are signal wires appropriately smaller gauge?
4. Are there any wires with unusually long lengths? (>5m)

DigiKey Data Verification

For each component with a DigiKey part number:
1. Verify pin count matches the DigiKey specification
2. List any components where the manufacturer doesn't match DigiKey data
3. Show components that might have substitute parts available

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Documentation Generation

Generate Wire Table

Create a wire summary table with columns:
- Wire Name
- From (Component.Pin)
- To (Component.Pin)
- Color
- Gauge
- Length (mm)

Sort by wire name.

Generate Connector Pinout Report

For each connector, generate a pinout report:
- Connector name and part number
- Pin count
- For each pin: number, name, connected wire, destination

Export Summary for Quote

Generate a summary suitable for quoting:
- Total number of connectors (by type)
- Total wire length (by gauge)
- Number of splices
- Estimated manufacturing complexity (simple/medium/complex)

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Geometry & Layout

Align Components

Align all connectors named J1 through J10 to the same Y coordinate (300).
Keep their X positions unchanged.

Space Components Evenly

Take connectors J1, J2, J3, J4, J5 and redistribute them evenly
between X=100 and X=600, keeping the same Y position.

Create Bundle Path

Create a bundle path starting at ECU_MAIN,
passing through junction points at (300, 200) and (500, 200),
then branching to J1 at (600, 100) and J2 at (600, 300).

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Working with Libraries

Find Similar Components

Search the library for connectors that match:
- 12 pins or more
- Manufacturer: Molex or TE Connectivity
- Suitable for automotive use

Show part numbers and pin counts.

Replace Component from Library

Replace the component named "PLACEHOLDER_ECU" with:
- Library component: "BOSCH_ECU_48PIN"
- Keep all existing wire connections
- Map pins by number (pin 1 to pin 1, etc.)

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Script Generation

Generate Parameterized Script

Write a script that creates a connector row where I can change:
- Number of connectors (default: 5)
- Starting position (default: 100, 200)
- Spacing (default: 150)
- Pin count per connector (default: 8)
- Name prefix (default: "J")

Use variables at the top that I can modify.

Generate Reusable Wire Creation Script

Write a script to connect two connectors pin-for-pin.
Parameters:
- Source connector name
- Destination connector name
- Wire color
- Wire gauge
- Wire name prefix

The script should connect pin 1 to pin 1, pin 2 to pin 2, etc.

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Troubleshooting Prompts

Debug Wire Routing

Wire W23 shows an unexpected length of 5000mm.
Trace its path through bundles and show each segment length.
Are there any routing issues?

Find Orphaned Elements

List any elements that appear to be orphaned:
- Anchors not connected to bundles
- Bundle segments with no wires
- Pins with no component
- Wires with missing endpoints

Check for Common Mistakes

Scan the design for common mistakes:
- Components placed on top of each other
- Wires with zero length
- Bundles that cross without a splice
- Duplicate component names

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Tips for Better Results

Be Specific About Quantities

Good

"Create 5 connectors named J1 through J5"

Vague

"Create some connectors"

Include Units

Good

"Space them 150 units apart" or "Set length to 2.5m"

Ambiguous

"Space them apart" or "Make it longer"

Specify Formats

Good

"Wire color: red (RD) using DIN 47100 codes"

Unclear

"Make the wire red"

Describe the End Goal

Good

"I'm building a power distribution harness with a main fuse box and 6 loads"

Task-only

"Add a fuse box"

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Next Steps

• Scripting Basics - Understand the generated code
• Trust & Verification - Verify AI outputs before production
• Command Reference - Full API documentation