KiCad schematic and PCB generation from natural language. An agent skill from codejunkie99/Gateflow-Plugin.

Custom licenceAuto-check: notes

Install Gf Pcb

skills CLI
$ npx skills add codejunkie99/Gateflow-Plugin --skill gf-pcb -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install codejunkie99/Gateflow-Plugin gf-pcb --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/codejunkie99/Gateflow-Plugin.git skills-src && mkdir -p .claude/skills && cp -r skills-src/plugins/gateflow/skills/gf-pcb .claude/skills/gf-pcb && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
gf-pcb
GitHub stars
117
Token cost
~1.2k tokens
SKILL.md length
314 words
Files
2 (incl. references)
Skills in repo
26
Repo updated
First seen
Licence
Custom licence

At a glance

KiCad schematic and PCB generation from natural language. An agent skill from codejunkie99/Gateflow-Plugin.

  • Works in 6 steps: Parse request — What board? Components?… → Web search — Reference designs,… → Spawn pcb-designer agent — Generate… → …
  • SKILL.md covers Tool Detection, Workflow, Output Files and Result Format, plus 5 more sections
  • Reaches kicad.org

What it does

Gf Pcb is an agent skill from codejunkie99/Gateflow-Plugin. KiCad schematic and PCB generation from natural language. AI-verified drafts with DRC/ERC/AI review loop. Example: "design a breakout board for iCE40 with SPI flash and 2 PMODs"

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/kicad-cli.md`).

The repository describes itself as: AI-powered SystemVerilog development assistant — design, verify, debug, and deliver working RTL with natural language.

Example prompts

  • “design a breakout board for iCE40 with SPI flash and 2 PMODs”
  • “/gf-pcb”

Requirements

  • Pre-approved tools (allowed-tools): Bash, Read, Write, Glob, Grep, Task, WebSearch, WebFetch

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Parse request — What board? Components? Constraints?
  2. Web search — Reference designs, datasheets, footprints
  3. Spawn pcb-designer agent — Generate schematic + PCB
  4. Run verification loop
  5. Label output with verification status and confidence
  6. Deliver with mandatory disclaimer

What it can do on your machine

Read from SKILL.md and the folder at commit bf7e94c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Bash
    • Read
    • Write
    • Glob
    • Grep
    • Task
    • WebSearch
    • WebFetch

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • kicad.org

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Gf Pcb loads about 1.2k tokens when it runs, and up to ~5.5k if it reads all its reference files. Until then it costs about 46 tokens; SKILL.md has 314 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k
With references · SKILL.md plus every file in references/, read only if the agent opens them
~5.5k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NoteRuns commands with sudoSKILL.md:32
    Linux: sudo apt install kicad
  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Bash, Read, Write, Glob, Grep, Task, WebSearch, WebFetch

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 314 words (~1,225 tokens).

name
gf-pcb
allowed-tools
Bash, Read, Write, Glob, Grep, Task, WebSearch, WebFetch

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file (references) in plugins/gateflow/skills/gf-pcb of codejunkie99/Gateflow-Plugin.

  • SKILL.md
  • references/kicad-cli.md

Open the folder on GitHubat commit bf7e94c

Compare with similar skills

Gf Pcb next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Gf Pcb compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Gf Pcb this skillcodejunkie99/Gateflow-Plugin117—~1.2kAutomated safety check: NotesCustom licence
Kicad Pcbmixelpixx/Konnect895—~5.6kAutomated safety check: PassAGPL-3.0
Kicad Schematicmixelpixx/Konnect895—~4.1kAutomated safety check: PassAGPL-3.0
Kicadaklofas/kicad-happy1.3k1 repos~20kAutomated safety check: PassMIT
Nature Citation FinderYuan1z0825/nature-skills46k—~759Automated safety check: PassApache-2.0
Nature Data AvailabilityYuan1z0825/nature-skills46k—~957Automated safety check: PassApache-2.0

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  • Kicad Pcb

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    895 GitHub stars~5.6k tokensUpdated 2 days ago
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  • Kicad Schematic

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  • Kicad

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    Analyze KiCad projects and PDF schematics: schematics, PCB layouts, Gerbers, footprints, symbols, netlists, and design rules.

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    46k GitHub stars~759 tokensUpdated yesterday
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More from codejunkie99/Gateflow-Plugin

All 26 skills in this repo
  • Gf Architect

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    Codebase architect - Maps and documents SystemVerilog projects.

    117 GitHub stars~4.4k tokensUpdated 21 days ago
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  • Gf Fusesoc

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    FuseSoC build system integration for GateFlow. An agent skill from codejunkie99/Gateflow-Plugin.

    117 GitHub stars~1.2k tokensUpdated 21 days ago
    Auto-check passed
  • Gf Learn

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    SystemVerilog learning mode — generates exercises, reviews solutions, and teaches RTL design patterns.

    117 GitHub stars~1.3k tokensUpdated 21 days ago
    Auto-check passed
  • Gf Release

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    GateFlow release readiness workflow. An agent skill from codejunkie99/Gateflow-Plugin.

    117 GitHub stars~676 tokensUpdated 21 days ago
    Auto-check passed
  • Gf Router

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    Figures out what kind of digital hardware design task the user wants to do, then hands off to the right specialist.

    117 GitHub stars~3.3k tokensUpdated 21 days ago
    Auto-check passed
  • Gf Summary

    codejunkie99/Gateflow-Plugin

    Summarize Verilator, lint, or simulation output into a readable, actionable format.

    117 GitHub stars~526 tokensUpdated 21 days ago
    Auto-check passed

Questions about Gf Pcb

What does Gf Pcb do?

KiCad schematic and PCB generation from natural language. An agent skill from codejunkie99/Gateflow-Plugin. Gf Pcb is an agent skill from codejunkie99/Gateflow-Plugin. KiCad schematic and PCB generation from natural language.

How do I install Gf Pcb in Claude Code?

Run `npx skills add codejunkie99/Gateflow-Plugin --skill gf-pcb -a claude-code`. Or copy the skill folder (plugins/gateflow/skills/gf-pcb in codejunkie99/Gateflow-Plugin) into .claude/skills/gf-pcb in your project. Claude Code loads it when a task matches its description.

How do I install Gf Pcb in Codex?

Run `npx skills add codejunkie99/Gateflow-Plugin --skill gf-pcb -a codex`. Or copy the skill folder (plugins/gateflow/skills/gf-pcb in codejunkie99/Gateflow-Plugin) into .agents/skills/gf-pcb in your project. Codex loads it when a task matches its description.

Can I use Gf Pcb in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add codejunkie99/Gateflow-Plugin --skill gf-pcb -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/gf-pcb, .gemini/skills/gf-pcb, .github/skills/gf-pcb and .opencode/skills/gf-pcb in your project.

What does Gf Pcb need to run?

SKILL.md names no scripts, command-line tools or credentials: Gf Pcb is instructions for the agent only. Its frontmatter pre-approves these tools: Bash, Read, Write, Glob, Grep, Task, WebSearch, WebFetch.

Does Gf Pcb access the network?

SKILL.md names 1 domain. In commands or code: kicad.org; the agent is likely to contact it when it follows the instructions. This is read from the text; nothing was executed.

Is Gf Pcb safe to install?

Our automated static check of SKILL.md found notes only (runs commands with sudo; pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Gf Pcb use?

Gf Pcb has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Gf Pcb use?

About 1.2k tokens (SKILL.md is roughly 4.9k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 4.3k tokens, read only when the agent opens those files.

What are the alternatives to Gf Pcb?

Skills that share tags, products or a category with Gf Pcb: Kicad Pcb (mixelpixx/Konnect, 895 stars), Kicad Schematic (mixelpixx/Konnect, 895 stars), Kicad (aklofas/kicad-happy, 1.3k stars) and Nature Citation Finder (Yuan1z0825/nature-skills, 46k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gf Pcb?

codejunkie99 (a GitHub user) maintains it in codejunkie99/Gateflow-Plugin, which has 117 GitHub stars. The repository holds 26 skills in this directory. The repository was last updated on September 16, 2026.

Source: codejunkie99/Gateflow-Plugin on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.