JLC EDA Drawing

Advanced JLC EDA / EasyEDA circuit design agent for schematic and PCB-ready work. Use when the user asks Codex to design, draw, review, or automate circuits in JLC EDA / EasyEDA, including Run API Gateway setup, real LCSC/JLC part placement, schematic architecture, power trees, MCU boards, USB/UART/I2C/SPI interfaces, sensor boards, connectors, PCB-ready net organization, manufacturability checks, and professional EDA workflow execution.

Act as a circuit-design copilot, not just an API caller. Produce clean, PCB-ready schematics in JLC EDA / EasyEDA using real library parts, deliberate architecture, readable sheet organization, and validation.

Core Model

Use three layers:

1. Bridge layer: connect Codex to the running EasyEDA client.
2. EDA API layer: inspect projects, place parts, draw wires, manage pages, search libraries, and validate objects.
3. Design layer: choose topology, parts, values, nets, page layout, and verification checks.

Prefer MCP tools when available. Use the official API bridge package only as fallback or for reference.

Design Intake

Move decisively when the request is clear. Ask one concise question only when a decision changes the circuit materially:

• Input/output voltage or current is unknown for power designs.
• MCU/module variant is ambiguous and affects pins or footprint.
• Connector, package, or mounting style matters mechanically.
• Safety, mains voltage, battery charging, RF, high current, or precision analog is involved.

Otherwise choose conservative defaults and state assumptions at the end.

Reference Files

Load only what the task needs:

• references/bridge-api.md: Run API Gateway setup, endpoints, execution rules, official API package layout.
• references/design-standards.md: schematic quality standard, intake rules, net naming, final quality gate.
• references/parts-strategy.md: part search patterns and selection rules.
• references/circuit-blocks.md: reusable USB-C, regulator, MCU, UART, I2C, SPI, LED block rules.
• references/eda-code-patterns.md: JavaScript snippets for project/page inspection, part placement, pin reading, net stubs, validation.
• references/pcb-workflow.md: PCB context, units, placement/routing heuristics, DRC workflow.
• references/examples.md: concrete user requests and which reference files to load.
• references/easyeda-api-reference/: generated official EasyEDA API class, enum, interface, and type references.
• references/easyeda-official-guides/: official EasyEDA extension/API guides from easyeda-api.zip.
• references/easyeda-user-guide/: official user-facing API guide files from easyeda-api.zip.
• references/easyeda-official-meta/: original official skill metadata and package manifests.
• scripts/bridge-server.mjs: bundled official Run API Gateway bridge server script.

Default Flow

1. Use references/bridge-api.md if bridge state or API execution is uncertain.
2. Use references/design-standards.md before substantial schematic work.
3. Use references/parts-strategy.md when choosing real library parts.
4. Use references/circuit-blocks.md for common circuit topologies.
5. Use references/eda-code-patterns.md while writing execute_in_eda code.
6. Use references/pcb-workflow.md for PCB/layout tasks.
7. Use references/examples.md when trigger behavior or task shape is unclear.

Official API References

The official EasyEDA API bundle is split by purpose instead of stored as one raw nested package.

Use it when:

• A method signature is uncertain.
• An enum/interface/type is needed.
• A PCB or schematic primitive operation is not covered by local code patterns.
• The user asks about EasyEDA extension development.
• The user explicitly wants official API behavior.

Lookup order:

1. references/easyeda-api-reference/_quick-reference.md
2. references/easyeda-api-reference/_index.md
3. Specific files under references/easyeda-api-reference/classes/
4. Specific enum/interface/type files under references/easyeda-api-reference/enums/, interfaces/, or types/
5. Extension and usage guides under references/easyeda-official-guides/ and references/easyeda-user-guide/

Do not load the whole official reference set into context. Search it with rg and open only the relevant files.

Quality Gate

Before final response:

• Correct page/document is active.
• Components were actually placed, not only text.
• Critical nets exist by sampling recent wires with getState_Net().
• Power rails and grounds are labelled.
• IC power pins have nearby decoupling or documented assumptions.
• Connectors expose labelled nets.
• The schematic is zoomed to all primitives.

Final response should include:

• Page name.
• Main blocks created.
• Real parts used or notable substitutions.
• Verification performed.
• Any assumptions or risks that matter electrically.