Operating Kicad Eda

Operating KiCad EDA

> 判断先于执行：决定「是否做 / 选什么 / 如何取舍」（栈、方案、架构、权衡）前，先读领域判断内核 skills/_kernel/hardware/SKILL.md——它管 judgment，本秘典管 execution；冲突时以内核判断为准。

> MCP tool router for KiCad 9. Never guess, never hand-route, never parallelize PCB writes.

When to use

| Scenario | Use | Approach |

|----------|-----|----------|

| Create schematic from design doc | Yes | schematic() operations |

| Generate PCB from schematic | Yes | build_pcb_from_schematic |

| Route a PCB | Yes | autoroute(operation="run") only |

| Fix DRC violations | Yes | drc(operation="autofix") |

| Export manufacturing files | Yes | export() Gerber/BOM/render |

| Hand-place a single trace | NO | LLM traces violate clearances |

Iron rules

• NEVER hand-route — pcb(add_trace/add_via) produces DRC-failing garbage. Use autoroute(operation="run").
• NEVER guess names — footprint and symbol names change between KiCad versions. Always library(operation="search") first.
• SERIALIZE PCB ops — MCP PCB tools do load/modify/save. Parallel calls corrupt the .kicad_pcb file.
• VERIFY after changes — drc(operation="run") + audit(operation="all") before declaring done.

MCP tool routing table

| Task | MCP Tool | Operation |

|------|----------|-----------|

| Search parts | library | search |

| Create/edit schematic | schematic | create_symbol, add_wire, add_label |

| Build PCB from schematic | build_pcb_from_schematic | — (standalone) |

| Place footprints | pcb | place_footprint |

| Set board outline | pcb | set_board_outline |

| Add zones (copper pour) | pcb | add_zone |

| Auto-route | autoroute | run |

| Run DRC | drc | run |

| Auto-fix DRC | drc | autofix |

| Export Gerber | export | gerber |

| Export BOM | export | bom |

| 3D render | export | render |

| Estimate board size | estimate_board_size | — (standalone) |

| Suggest placement | suggest_placement | — (standalone) |

| Full audit | audit | all |

Standard pipeline

1. library(search) → find symbols and footprints
2. schematic(create_symbol) → place all components
3. schematic(add_wire/add_label) → connect nets
4. [Python] footprint injection script → fix kicad-cli lookup
5. build_pcb_from_schematic → initial PCB
6. pcb(set_board_outline) → product form factor
7. suggest_placement or pcb(place_footprint) → position components
8. autoroute(run) → FreeRouter
9. drc(run) → check
10. drc(autofix) → fix violations
11. pcb(add_zone) → GND copper pour both layers
12. export(gerber) → manufacturing files
13. export(render) → 3D views

References

| Topic | File |

|-------|------|

| KiCad 9 parse quirks | kicad9-quirks.md |

| DRC fix strategies | drc-strategies.md |

| Footprint injection | footprint-injection.md |

Exit criteria

• [ ] ERC: 0 errors (warnings acceptable)
• [ ] DRC: 0 violations
• [ ] All nets routed (no unconnected)
• [ ] Gerber zip exportable