Claude Code Agent Development
anthropics/claude-plugins-official
Explains how to write agents for Claude Code plugins: the markdown file with YAML frontmatter, trigger descriptions, model and color settings, and system prompt design.
Codebase architect - Maps and documents SystemVerilog projects.
Install Gf Architect
$ npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install codejunkie99/Gateflow-Plugin gf-architect --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ 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-architect .claude/skills/gf-architect && rm -rf skills-srcUse ~/.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/
Install the "gf-architect" agent skill from https://github.com/codejunkie99/Gateflow-Plugin/tree/main/plugins/gateflow/skills/gf-architect into .claude/skills/gf-architect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gf-architect", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/codejunkie99/Gateflow-Plugin/tree/main/plugins/gateflow/skills/gf-architectType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install codejunkie99/Gateflow-Plugin gf-architect --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codejunkie99/Gateflow-Plugin.git skills-src && mkdir -p .agents/skills && cp -r skills-src/plugins/gateflow/skills/gf-architect .agents/skills/gf-architect && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "gf-architect" agent skill from https://github.com/codejunkie99/Gateflow-Plugin/tree/main/plugins/gateflow/skills/gf-architect into .agents/skills/gf-architect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gf-architect", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install codejunkie99/Gateflow-Plugin gf-architect --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codejunkie99/Gateflow-Plugin.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/plugins/gateflow/skills/gf-architect .cursor/skills/gf-architect && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "gf-architect" agent skill from https://github.com/codejunkie99/Gateflow-Plugin/tree/main/plugins/gateflow/skills/gf-architect into .cursor/skills/gf-architect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gf-architect", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/codejunkie99/Gateflow-Plugin.git --path plugins/gateflow/skills/gf-architect--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install codejunkie99/Gateflow-Plugin gf-architect --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codejunkie99/Gateflow-Plugin.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/plugins/gateflow/skills/gf-architect .gemini/skills/gf-architect && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "gf-architect" agent skill from https://github.com/codejunkie99/Gateflow-Plugin/tree/main/plugins/gateflow/skills/gf-architect into .gemini/skills/gf-architect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gf-architect", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install codejunkie99/Gateflow-Plugin gf-architectInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/codejunkie99/Gateflow-Plugin.git skills-src && mkdir -p .github/skills && cp -r skills-src/plugins/gateflow/skills/gf-architect .github/skills/gf-architect && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "gf-architect" agent skill from https://github.com/codejunkie99/Gateflow-Plugin/tree/main/plugins/gateflow/skills/gf-architect into .github/skills/gf-architect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gf-architect", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install codejunkie99/Gateflow-Plugin gf-architect --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/codejunkie99/Gateflow-Plugin.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/plugins/gateflow/skills/gf-architect .opencode/skills/gf-architect && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "gf-architect" agent skill from https://github.com/codejunkie99/Gateflow-Plugin/tree/main/plugins/gateflow/skills/gf-architect into .opencode/skills/gf-architect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "gf-architect", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
gf-architect- GitHub stars
- 117
- Token cost
- ~4.4k tokens
- SKILL.md length
- 707 words
- Files
- 1
- Skills in repo
- 26
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Codebase architect - Maps and documents SystemVerilog projects.
- Works in 5 steps: Check for Existing Map → Scan Codebase & Token Budgeting → Handle Large Files (>80k tokens) → …
- Wants to understand a codebase structure
- SKILL.md covers Agent Count Strategy, Quick Start, Output Structure and Workflow, plus 4 more sections
- Calls git
What it does
Gf Architect is an agent skill from codejunkie99/Gateflow-Plugin. Codebase architect - Maps and documents SystemVerilog projects. This skill should be used when the user wants to understand a codebase structure, generate architecture documentation, or onboard to a new RTL project. Example requests: "map this codebase", "document the architecture", "show module hierarchy"
Its SKILL.md is about 4.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Agent Workflows, covering Subagents. 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
- Wants to understand a codebase structure
- Generate architecture documentation
- Onboard to a new RTL project
Example prompts
- “map this codebase”
- “document the architecture”
- “show module hierarchy”
- “/gf-architect”
Requirements
- Pre-approved tools (allowed-tools): Grep, Glob, Read, Write, Bash, Task
Workflow steps
5 steps, taken from the step headings in SKILL.md.
- Check for Existing Map
- Scan Codebase & Token Budgeting
- Handle Large Files (>80k tokens)
- Spawn Parallel Subagents
- Synthesize Reports
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:
GrepGlobReadWriteBashTask
From allowed-tools in the SKILL.md frontmatter.
Runs code
Shell commands in SKILL.md call:
git
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.
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 Architect loads about 4.4k tokens when it runs. Until then it costs about 80 tokens; SKILL.md has 707 words of instructions outside code blocks.
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: Grep, Glob, Read, Write, Bash, Task
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 707 words (~4,444 tokens).
“Maps SystemVerilog codebases using parallel subagents.”
- name
- gf-architect
- allowed-tools
- Grep, Glob, Read, Write, Bash, Task
Files
Just SKILL.md in plugins/gateflow/skills/gf-architect of codejunkie99/Gateflow-Plugin.
Open the folder on GitHubat commit bf7e94c
Compare with similar skills
Gf Architect 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Gf Architect this skillcodejunkie99/Gateflow-Plugin | 117 | — | ~4.4k | Automated safety check: Notes | Custom licence | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 37k | 8 repos | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| Subagent Driven DevelopmentAsvarox/allkaraoke | 261 | 37 repos | ~1.2k | Automated safety check: Pass | None | |
| Dispatching Parallel Agentsultralisp/ultralisp | 258 | 40 repos | ~1.5k | Automated safety check: Pass | None | |
| Paseo Advisor Second Opiniongetpaseo/paseo | 20k | 1 repos | ~756 | Automated safety check: Pass | Custom licence | |
| Task Observerrebelytics/one-skill-to-rule-them-all | 3.2k | 1 repos | ~12k | Automated safety check: Pass | CC-BY-4.0 |
Similar skills
- Official
Subagent Driven Development
Asvarox/allkaraoke
A skill your agent uses when executing implementation plans with independent tasks in the current session
Dispatching Parallel Agents
ultralisp/ultralisp
A skill your agent uses when facing 2+ independent tasks that can be worked on without shared state or sequential dependencies
Paseo Advisor Second Opinion
getpaseo/paseo
Launches one separate agent through Paseo to give a second opinion on the current task, with a self-contained briefing and no permission to edit files.
Task Observer
rebelytics/one-skill-to-rule-them-all
Monitors task execution for skill improvement opportunities.
O2 Review Loop
openobserve/openobserve
Splits a change into planner, coder and independent reviewer roles: you confirm a spec, a subagent implements it, and a separate reviewer checks each round's local WIP commit.
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Related
Categories
Questions about Gf Architect
What does Gf Architect do?
Codebase architect - Maps and documents SystemVerilog projects. Gf Architect is an agent skill from codejunkie99/Gateflow-Plugin. Codebase architect - Maps and documents SystemVerilog projects.
When should I use Gf Architect?
Gf Architect fits situations like: wants to understand a codebase structure; generate architecture documentation; onboard to a new RTL project.
How do I install Gf Architect in Claude Code?
Run `npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a claude-code`. Or copy the skill folder (plugins/gateflow/skills/gf-architect in codejunkie99/Gateflow-Plugin) into .claude/skills/gf-architect in your project. Claude Code loads it when a task matches its description.
How do I install Gf Architect in Codex?
Run `npx skills add codejunkie99/Gateflow-Plugin --skill gf-architect -a codex`. Or copy the skill folder (plugins/gateflow/skills/gf-architect in codejunkie99/Gateflow-Plugin) into .agents/skills/gf-architect in your project. Codex loads it when a task matches its description.
Can I use Gf Architect 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-architect -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-architect, .gemini/skills/gf-architect, .github/skills/gf-architect and .opencode/skills/gf-architect in your project.
What does Gf Architect need to run?
Going by SKILL.md and its folder, Gf Architect needs the command-line tools its instructions call (git). Its frontmatter pre-approves these tools: Grep, Glob, Read, Write, Bash, Task.
Does Gf Architect access the network?
SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Gf Architect 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 Architect use?
Gf Architect 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 Architect use?
About 4.4k tokens (SKILL.md is roughly 18k 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 Architect?
Skills that share tags, products or a category with Gf Architect: Claude Code Agent Development (anthropics/claude-plugins-official, 37k stars), Subagent Driven Development (Asvarox/allkaraoke, 261 stars), Dispatching Parallel Agents (ultralisp/ultralisp, 258 stars) and Paseo Advisor Second Opinion (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Gf Architect?
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.