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BOM (Bill of Materials) management for electronics projects — the workflow skill that coordinates DigiKey, Mouser, LCSC, element14, JLCPCB, PCBWay, and KiCad skills around a unified BOM lifecycle. Create, update, and maintain BOMs with part numbers, costs, quantities stored as KiCad symbol properties. ALWAYS trigger this skill for any task involving component sourcing, pricing, ordering, distributor searches, BOM export, or fabrication preparation — even if the user names a specific distributor
Passed 17 of 20 test cases with the skill, and 10 of 20 without it.
and 6 more in the full report
9 fixed11 passed either way3 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
We need a quick prototype order file containing all available Digi-Key components from `bom/bom.csv`, ignoring whatever is set in the `Chosen_Distributor` column. Which flag bypasses the `Chosen_Distributor` column?
| Checked | Without skill | With skill |
|---|---|---|
| Passes --distributor digikey to bypass the Chosen_Distributor column. | Missed | Passed |
The instructions your model reads when the skill loads.
BOM data lives in KiCad schematic symbol properties as the single source of truth. This skill orchestrates the full lifecycle: analyze the schematic, search distributors, validate parts, write properties back, export tracking CSVs, and generate order files.
| Skill | Purpose |
|---|---|
kicad | Read/analyze schematics, PCB, footprints |
digikey | Search DigiKey, download datasheets (primary prototype source) |
mouser | Search Mouser (secondary prototype source) |
lcsc | Search LCSC (production/JLCPCB parts) |
element14 | Search Newark/Farnell/element14 (international) |
jlcpcb | PCB fabrication & assembly ordering |
pcbway | Alternative PCB fab & assembly |
Use <skill-path> to reference the BOM skill directory.
# Analyze schematic (JSON output, recursive sub-sheets)
python3 <skill-path>/scripts/bom_manager.py analyze path/to/schematic.kicad_sch --json --recursive
# Export BOM tracking CSV (creates new or merges with existing)
python3 <skill-path>/scripts/bom_manager.py export path/to/schematic.kicad_sch -o bom/bom.csv --recursive
# Generate per-distributor order files (5 boards + 2 spares/line)
python3 <skill-path>/scripts/bom_manager.py order bom/bom.csv --boards 5 --spares 2
# Quick single-distributor order (bypasses Chosen_Distributor column)
python3 <skill-path>/scripts/bom_manager.py order bom/bom.csv --distributor digikey
# Write properties to schematic (dry-run first, then apply)
echo '{"R1": {"MPN": "RC0805FR-0710KL", "Manufacturer": "Yageo"}}' \
| python3 <skill-path>/scripts/edit_properties.py path/to/schematic.kicad_sch --dry-run
# Sync datasheet URLs from manifest.json back into schematic Datasheet properties
python3 <skill-path>/scripts/sync_datasheet_urls.py path/to/schematic.kicad_sch --recursive --dry-run
test cases passed, vs 10 / 20 without
More skills from the same source and nearby in the registry, with their headline benchmark lift.