IP block library manager. An agent skill from codejunkie99/Gateflow-Plugin.

Custom licenceAuto-check: notes

Install Gf Ip

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

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

GitHub CLI
$ gh skill install codejunkie99/Gateflow-Plugin gf-ip --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-ip .claude/skills/gf-ip && 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-ip
GitHub stars
117
Token cost
~1.1k tokens
SKILL.md length
216 words
Files
1
Skills in repo
26
Repo updated
First seen
Licence
Custom licence

At a glance

IP block library manager. An agent skill from codejunkie99/Gateflow-Plugin.

  • Works in 6 steps: Read block.yaml for metadata and… → Copy RTL to rtl/ (or user-specified… → Copy testbench to tb/ → …
  • SKILL.md covers Commands, Available Blocks, Block Structure and Add Flow, plus 4 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Gf Ip is an agent skill from codejunkie99/Gateflow-Plugin. IP block library manager. Install, list, and query verified drop-in hardware components. Each block includes RTL, testbench, formal properties, and documentation. Example: "add a FIFO to my project", "/gf-ip add uart"

Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

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

Example prompts

  • “add a FIFO to my project”
  • “/gf-ip add uart”
  • “/gf-ip”

Requirements

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

Workflow steps

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

  1. Read block.yaml for metadata and parameters
  2. Copy RTL to rtl/ (or user-specified directory)
  3. Copy testbench to tb/
  4. Copy formal properties to formal/
  5. Update .gateflow/project.yaml — add to ip_blocks
  6. Show instantiation example from README.md

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

    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 and yaml).

    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 Ip loads about 1.1k tokens when it runs. Until then it costs about 56 tokens; SKILL.md has 216 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~56
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k

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.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Bash, Read, Write, Glob, Grep

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 216 words (~1,148 tokens).

name
gf-ip
allowed-tools
Bash, Read, Write, Glob, Grep

Read the full SKILL.md on GitHub

Files

Just SKILL.md in plugins/gateflow/skills/gf-ip of codejunkie99/Gateflow-Plugin.

Open the folder on GitHubat commit bf7e94c

Compare with similar skills

Gf Ip 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 Ip compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Gf Ip this skillcodejunkie99/Gateflow-Plugin117—~1.1kAutomated safety check: NotesCustom licence
Issue Managementremotion-dev/remotion62k—~1kAutomated safety check: PassCustom licence
Secrets Managementdavila7/claude-code-templates32k11 repos~2kAutomated safety check: PassMIT
Project ManagerRightNow-AI/openfang18k—~960Automated safety check: PassApache-2.0
Content Management Systemsgithub/awesome-copilot40k1 repos~1.3kAutomated safety check: PassMIT
Secrets Vault Manageralirezarezvani/claude-skills28k1 repos~3.6kAutomated safety check: NotesMIT

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Questions about Gf Ip

What does Gf Ip do?

IP block library manager. An agent skill from codejunkie99/Gateflow-Plugin. Gf Ip is an agent skill from codejunkie99/Gateflow-Plugin. IP block library manager.

How do I install Gf Ip in Claude Code?

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

How do I install Gf Ip in Codex?

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

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

What does Gf Ip need to run?

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

Does Gf Ip 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 Ip safe to install?

Our automated static check of SKILL.md found notes only (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 Ip use?

Gf Ip 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 Ip use?

About 1.1k tokens (SKILL.md is roughly 4.6k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Gf Ip?

Skills that share tags, products or a category with Gf Ip: Issue Management (remotion-dev/remotion, 62k stars), Secrets Management (davila7/claude-code-templates, 32k stars), Project Manager (RightNow-AI/openfang, 18k stars) and Content Management Systems (github/awesome-copilot, 40k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Gf Ip?

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.