How do I install the Kicad Component skill?

Run npx skillmds@latest add avatarsd/kicad-component in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

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This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Kicad Component free to use?

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Who published Kicad Component?

AvatarSD (@avatarsd) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Kicad Component by avatarsd — Agent Skill

Name: Kicad Component
Author: AvatarSD

Kicad Component

Find, fetch, and register KiCad components: search local/official symbol and footprint libraries, download missing parts from the internet (easyeda2kicad by LCSC id, SnapEDA/UltraLibrarian zips), and register them in project lib tables. Use when a schematic needs a part that is not already in the project.

AvatarSD 88c64d0 2.2 KB Updated Sep 17, 2026

File contents

Component sourcing & indexing

Local search order

Project libs (sym-lib-table next to .kicad_pro, ${KIPRJMOD} URIs).
Official flatpak libs: ~/.local/share/flatpak/runtime/org.kicad.KiCad.Library.Symbols/x86_64/stable/active/files/symbols/*.kicad_sym (footprints idem, .../Library.Footprints/.../footprints/*.pretty). Grep symbol names: grep -l '(symbol "NAME' *.kicad_sym then extract the balanced block with kicad_lib.sexp.
Index (implemented): kx find dual comparator → ranked lib_id hits with description/keywords/pins. First run kx index [PROJECT_LIB_DIR] (22k official symbols ≈ 20 s once; mtime-incremental ≈ 0.1 s after). DB: ~/.cache/kx_scratch/symbols.sqlite; extends children inherit base description/keywords so families are searchable.

Internet fetch

LCSC/JLC part known (implemented, preferred): kx fetch C25804 /path/to/project → symbol + footprint + 3D (wrl+step) in PROJECT/libs/ AND both lib tables registered (${KIPRJMOD} URIs), idempotent. Binary lives in the repo .venv (PEP 668 box); fetch needs real network (sandbox blocks DNS — run unsandboxed). v1.0.1 quirk handled: --project-relative resolves against CWD, so kx runs it from the project dir.
SnapEDA/UltraLibrarian zip (implemented; user downloads, no open API): kx import-zip part.zip /path/to/project → libs/.kicad_sym + .pretty + tables; legacy .lib auto-upgraded via kicad-cli sym upgrade.
Always sanity-check fetched footprints visually: render via kicad-cli pcb export svg on a scratch board, compare against the datasheet land pattern. Internet footprints are guilty until proven.

Registration

Append to project sym-lib-table: (lib (name "x")(type "KiCad") (uri "${KIPRJMOD}/x.kicad_sym")(options "")(descr "")) — same shape for fp-lib-table with a .pretty dir URI. Missing tables: create them.

---name: kicad-componentdescription: Find, fetch, and register KiCad components: search local/official symbol and footprint libraries, download missing parts from the internet (easyeda2kicad by LCSC id, SnapEDA/UltraLibrarian zips), and register them in project lib tables. Use when a schematic needs a part that is not already in the project.---# Component sourcing & indexing## Local search order1. Project libs (sym-lib-table next to .kicad_pro, `${KIPRJMOD}` URIs).2. Official flatpak libs: `~/.local/share/flatpak/runtime/org.kicad.KiCad.Library.Symbols/x86_64/stable/active/files/symbols/*.kicad_sym` (footprints idem, `.../Library.Footprints/.../footprints/*.pretty`). Grep symbol names: `grep -l '(symbol "NAME' *.kicad_sym` then extract the balanced block with `kicad_lib.sexp`.3. **Index (implemented):** `kx find dual comparator` → ranked lib_id hits with description/keywords/pins. First run `kx index [PROJECT_LIB_DIR]` (22k official symbols ≈ 20 s once; mtime-incremental ≈ 0.1 s after). DB: ~/.cache/kx_scratch/symbols.sqlite; `extends` children inherit base description/keywords so families are searchable.## Internet fetch- **LCSC/JLC part known** (implemented, preferred): `kx fetch C25804 /path/to/project` → symbol + footprint + 3D (wrl+step) in PROJECT/libs/ AND both lib tables registered (${KIPRJMOD} URIs), idempotent. Binary lives in the repo .venv (PEP 668 box); fetch needs real network (sandbox blocks DNS — run unsandboxed). v1.0.1 quirk handled: --project-relative resolves against CWD, so kx runs it from the project dir.- **SnapEDA/UltraLibrarian zip** (implemented; user downloads, no open API): `kx import-zip part.zip /path/to/project` → libs/<name>.kicad_sym + .pretty + tables; legacy .lib auto-upgraded via kicad-cli sym upgrade.- Always sanity-check fetched footprints visually: render via `kicad-cli pcb export svg` on a scratch board, compare against the datasheet land pattern. Internet footprints are guilty until proven.## RegistrationAppend to project `sym-lib-table`: `(lib (name "x")(type "KiCad")(uri "${KIPRJMOD}/x.kicad_sym")(options "")(descr ""))` — same shape for`fp-lib-table` with a `.pretty` dir URI. Missing tables: create them.

Frequently asked questions