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Agent skill

Gf Protocols

by codejunkie99 in codejunkie99/Gateflow-Plugin

Protocol scaffolding library. An agent skill from codejunkie99/Gateflow-Plugin.

Custom licenceAuto-check passedDevelopment

Install Gf Protocols

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

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

GitHub CLI
$ gh skill install codejunkie99/Gateflow-Plugin gf-protocols --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-protocols .claude/skills/gf-protocols && 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-protocols
GitHub stars
117
Token cost
~1.2k tokens
SKILL.md length
206 words
Files
8 (incl. references)
Skills in repo
25
Repo updated
First seen
Licence
Custom licence

At a glance

Protocol scaffolding library. An agent skill from codejunkie99/Gateflow-Plugin.

  • Works in 3 steps: Check if the IP library has a complete… → If available as IP: suggest /gf-ip add… → If not available or user wants custom:…
  • Tasks that involve Project scaffolding
  • SKILL.md covers Available Protocols, Usage, Scaffold Generation and Protocol References, plus 5 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Gf Protocols is an agent skill from codejunkie99/Gateflow-Plugin. Protocol scaffolding library. Generates correct, readable protocol interface scaffolds (AXI4-Lite, SPI, UART, I2C, AXI4-Full, AXI-Stream, Wishbone) with testbench templates and integration examples. Example: "create an I2C master interface", "scaffold AXI-Stream source"

Its SKILL.md is about 1.2k tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `references/axi-stream.md`, `references/axi4-full.md` and `references/axi4-lite.md`).

It sits in Development, covering Project scaffolding. The repository describes itself as: AI-powered SystemVerilog development assistant — design, verify, debug, and deliver working RTL with natural language.

When your agent uses it

  • Tasks that involve Project scaffolding

Example prompts

  • “create an I2C master interface”
  • “scaffold AXI-Stream source”
  • “/gf-protocols”

Requirements

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

Workflow steps

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

  1. Check if the IP library has a complete block (/gf-ip list)
  2. If available as IP: suggest /gf-ip add instead
  3. If not available or user wants custom: generate scaffold

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:

    • Read
    • Write
    • Glob
    • Grep
    • Task

    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 systemverilog).

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

  • Network

    No URLs in SKILL.md.

    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 Protocols loads about 1.2k tokens when it runs, and up to ~3.2k if it reads all its reference files. Until then it costs about 71 tokens; SKILL.md has 206 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~71
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
~3.2k

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 passed

The automated check found no risky patterns in SKILL.md.

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 206 words (~1,239 tokens).

“Not production IP cores. Correct, readable scaffolds that engineers customize. Plus the testbenches and integration code — that's where the real time goes.”

— opening of SKILL.md by codejunkie99, Custom licence
name
gf-protocols
allowed-tools
Read, Write, Glob, Grep, Task

Read the full SKILL.md on GitHub

Files

SKILL.md and 7 other files (references) in plugins/gateflow/skills/gf-protocols of codejunkie99/Gateflow-Plugin.

  • SKILL.md
  • references/axi-stream.md
  • references/axi4-full.md
  • references/axi4-lite.md
  • references/i2c.md
  • references/spi.md
  • references/uart.md
  • references/wishbone.md

Open the folder on GitHubat commit bf7e94c

Compare with similar skills

Gf Protocols 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 Protocols compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Gf Protocols this skillcodejunkie99/Gateflow-Plugin117—~1.2kAutomated safety check: PassCustom licence
Nx Generatenomcopter/react-mosaic4.8k7 repos~1.9kAutomated safety check: PassCustom licence
PonytailDavidObando/gsharp5658 repos~1.7kAutomated safety check: PassMIT
Run Nx Generatornrwl/nx29k2 repos~592Automated safety check: NotesMIT
Conductor Setupgemini-cli-extensions/conductor3.8k—~4.2kAutomated safety check: PassApache-2.0
Mirage VFS Adapter Authoringstrukto-ai/mirage3.7k—~2.5kAutomated safety check: PassApache-2.0

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Categories

Questions about Gf Protocols

What does Gf Protocols do?

Protocol scaffolding library. An agent skill from codejunkie99/Gateflow-Plugin. Gf Protocols is an agent skill from codejunkie99/Gateflow-Plugin. Protocol scaffolding library.

When should I use Gf Protocols?

Gf Protocols fits situations like: tasks that involve Project scaffolding.

How do I install Gf Protocols in Claude Code?

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

How do I install Gf Protocols in Codex?

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

Can I use Gf Protocols 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-protocols -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-protocols, .gemini/skills/gf-protocols, .github/skills/gf-protocols and .opencode/skills/gf-protocols in your project.

What does Gf Protocols need to run?

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

Does Gf Protocols access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Gf Protocols safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Gf Protocols use?

Gf Protocols 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 Protocols use?

About 1.2k tokens (SKILL.md is roughly 5k 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 1.9k tokens, read only when the agent opens those files.

What are the alternatives to Gf Protocols?

Skills that share tags, products or a category with Gf Protocols: Nx Generate (nomcopter/react-mosaic, 4.8k stars), Ponytail (DavidObando/gsharp, 565 stars), Run Nx Generator (nrwl/nx, 29k stars) and Conductor Setup (gemini-cli-extensions/conductor, 3.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gf Protocols?

codejunkie99 (a GitHub user) maintains it in codejunkie99/Gateflow-Plugin, which has 117 GitHub stars. The repository holds 25 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.