Agent skill

Formax Skill Capture

A skill your agent uses when we want to turn a just-finished Formax workflow (e.g.

MITAuto-check passedAI & LLM Engineering

Install Formax Skill Capture

skills CLI

$ npx skills add yusifeng/formax --skill formax-skill-capture -a claude-code

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

GitHub CLI

$ gh skill install yusifeng/formax formax-skill-capture --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/yusifeng/formax.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.codex/skills/formax-skill-capture .claude/skills/formax-skill-capture && 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/

Paste into Claude Code

Install the "formax-skill-capture" agent skill from https://github.com/yusifeng/formax/tree/main/.codex/skills/formax-skill-capture into .claude/skills/formax-skill-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "formax-skill-capture", 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

$skill-installer install https://github.com/yusifeng/formax/tree/main/.codex/skills/formax-skill-capture

Type 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.

skills CLI

$ npx skills add yusifeng/formax --skill formax-skill-capture -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install yusifeng/formax formax-skill-capture --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yusifeng/formax.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.codex/skills/formax-skill-capture .agents/skills/formax-skill-capture && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "formax-skill-capture" agent skill from https://github.com/yusifeng/formax/tree/main/.codex/skills/formax-skill-capture into .agents/skills/formax-skill-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "formax-skill-capture", 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.

skills CLI

$ npx skills add yusifeng/formax --skill formax-skill-capture -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install yusifeng/formax formax-skill-capture --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yusifeng/formax.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.codex/skills/formax-skill-capture .cursor/skills/formax-skill-capture && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "formax-skill-capture" agent skill from https://github.com/yusifeng/formax/tree/main/.codex/skills/formax-skill-capture into .cursor/skills/formax-skill-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "formax-skill-capture", 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

$ gemini skills install https://github.com/yusifeng/formax.git --path .codex/skills/formax-skill-capture

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add yusifeng/formax --skill formax-skill-capture -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install yusifeng/formax formax-skill-capture --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yusifeng/formax.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.codex/skills/formax-skill-capture .gemini/skills/formax-skill-capture && rm -rf skills-src

Use ~/.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/

Paste into Gemini CLI

Install the "formax-skill-capture" agent skill from https://github.com/yusifeng/formax/tree/main/.codex/skills/formax-skill-capture into .gemini/skills/formax-skill-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "formax-skill-capture", 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.

GitHub CLI

$ gh skill install yusifeng/formax formax-skill-capture

Installs 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).

skills CLI

$ npx skills add yusifeng/formax --skill formax-skill-capture -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/yusifeng/formax.git skills-src && mkdir -p .github/skills && cp -r skills-src/.codex/skills/formax-skill-capture .github/skills/formax-skill-capture && rm -rf skills-src

Use ~/.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/

Paste into GitHub Copilot

Install the "formax-skill-capture" agent skill from https://github.com/yusifeng/formax/tree/main/.codex/skills/formax-skill-capture into .github/skills/formax-skill-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "formax-skill-capture", 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.

skills CLI

$ npx skills add yusifeng/formax --skill formax-skill-capture -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install yusifeng/formax formax-skill-capture --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/yusifeng/formax.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.codex/skills/formax-skill-capture .opencode/skills/formax-skill-capture && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "formax-skill-capture" agent skill from https://github.com/yusifeng/formax/tree/main/.codex/skills/formax-skill-capture into .opencode/skills/formax-skill-capture/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "formax-skill-capture", 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: formax-skill-capture
GitHub stars: 195
Token cost: ~530 tokens
SKILL.md length: 228 words
Files: 2 (incl. scripts)
Skills in repo: 21
Repo updated: Jul 24, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

A skill your agent uses when we want to turn a just-finished Formax workflow (e.g.

Works in 4 steps: Skill name (kebab-case), e.g.… → 1–2 sentence description: when should… → Scope: which subsystem? (pick one) → …
We want to turn a just-finished Formax workflow (e.g
SKILL.md covers What this is, When to use, Minimal questions to ask (do… and Output requirements, plus 2 more sections
Runs Shell scripts from its folder; calls bash

What it does

Formax Skill Capture is an agent skill from yusifeng/formax. Use when we want to turn a just-finished Formax workflow (e.g. commands, overlays, tools, hooks, permissions, UI parity) into a reusable Codex Skill under .codex/skills, including scaffolding, guardrails, and the minimum test checklist.

Its SKILL.md is about 530 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including scripts (for example `scripts/new-skill.sh`).

It sits in AI & LLM Engineering, covering Project scaffolding and LLM guardrails. The repository describes itself as: Terminal-first AI assistant for software engineering tasks (inspired by Claude Code v2.0.67). The licence is MIT.

When your agent uses it

We want to turn a just-finished Formax workflow (e.g
Tasks that involve Project scaffolding
Tasks that involve LLM guardrails

Example prompts

“/formax-skill-capture”

Requirements

A Bash shell

Workflow steps

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

Skill name (kebab-case), e.g. formax-slash-command-workflow
1–2 sentence description: when should Codex use it?
Scope: which subsystem? (pick one)
Any explicit “don’t change” constraints? (UI copy/spacing/colors, contracts, etc.)

What it can do on your machine

Read from SKILL.md and the folder at commit 1b0c3f3. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships 1 file in scripts/ (Shell), which the agent can run.
Shell commands in SKILL.md call:
- bash
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

Formax Skill Capture loads about 530 tokens when it runs. Until then it costs about 64 tokens; SKILL.md has 228 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~64
When it runs · the whole SKILL.md, loaded when a task matches: ~530

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); the scripts in this folder are not scanned.

SKILL.md

The full file from yusifeng/formax at commit 1b0c3f3, republished under its MIT licence (© yusifeng). 228 words, ~530 tokens.

Download SKILL.mdSave it as .claude/skills/formax-skill-capture/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: formax-skill-capture
description: Use when we want to turn a just-finished Formax workflow (e.g. commands, overlays, tools, hooks, permissions, UI parity) into a reusable Codex Skill under .codex/skills, including scaffolding, guardrails, and the minimum test checklist.

Formax skill capture (create skills from our workflow)

What this is

This skill is a Formax-specific wrapper around skill authoring: it helps us reliably convert “we just figured out how to do X” into a repo-local skill under .codex/skills/<skill-name>/.

It complements the built-in skill-creator (system skill) by adding Formax conventions:

repo-local skills (checked into git)
“where to change what” file map
invariants (UI parity, model injection orthogonality, etc.)
minimum regression tests to lock behavior

When to use

Trigger this when the user says:

“把这个流程沉淀成 skill”
“以后别再忘了怎么改 /xxx”
“给我一个复用的修改清单/固定套路”

Minimal questions to ask (do not proceed until answered)

Skill name (kebab-case), e.g. formax-slash-command-workflow
1–2 sentence description: when should Codex use it?
Scope: which subsystem? (pick one)
- slash commands / overlays
- tools (spec/handler/presenter)
- hooks
- permissions/policy
- stability/input routing
Any explicit “don’t change” constraints? (UI copy/spacing/colors, contracts, etc.)

Output requirements

The resulting skill must include:

a short “Goal” section
“Where to change what” (file list)
“Patterns” (2–4 common patterns)
“Tests to update” (minimum regression set)
“Guardrails” (what must not regress)

Avoid long prose; prefer checklists.

Create a new skill (scaffold)

Use the scaffold script:

bash .codex/skills/formax-skill-capture/scripts/new-skill.sh <skill-name> "<description>"

Then fill SKILL.md body with the content above.

Refactor policy for skills

When a skill is created from a workflow we already shipped:

Do not broaden scope (no extra features)
Do not rewrite UI (unless explicitly requested)
Write/extend tests first if behavior has regressed before

Files

SKILL.md and 1 other file (scripts) in .codex/skills/formax-skill-capture of yusifeng/formax.

SKILL.md
scripts/new-skill.sh

Open the folder on GitHubat commit 1b0c3f3

Compare with similar skills

Formax Skill Capture 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.

Formax Skill Capture compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Formax Skill Capture this skillyusifeng/formax	195	—	~530	Automated safety check: Pass	MIT	2 mo ago
Git Guardrails Claude Codefossasia/eventyay-interpretation	1.6k	12 repos	~578	Automated safety check: Pass	Apache-2.0	4 days ago
Git Guardrails Claude Codevinvcn/mattpocock-skills-zh-CN	4.7k	—	~461	Automated safety check: Pass	MIT	yesterday
Aisafetyhotwuyoscar/AISafetyHot-Hub	641	—	~1.4k	Automated safety check: Pass	Custom licence	today
Google Agents CLI Adk Codepifferologo/cloud-agents-cli	129	1 repos	~768	Automated safety check: Pass	Apache-2.0	1 mo ago
Fable Modemrtooher/fable-mode	872	—	~1k	Automated safety check: Pass	None	1 mo ago

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More from yusifeng/formax

All 21 skills in this repo

Formax Repomix Handoff Workflow
yusifeng/formax
A skill your agent uses when preparing a Formax code handoff: selecting files, generating repomix bundles, and writing a high-quality prompt for WebGPT or another coding agent with clear constraints…
195 GitHub stars~1.2k tokensUpdated 2 mo ago
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Analyze Task
yusifeng/formax
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195 GitHub stars~1.2k tokensUpdated 2 mo ago
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Formax Dev Loop Workflow
yusifeng/formax
A skill your agent uses when working on Formax code changes and you need a disciplined dev loop: keep a single mainline task, avoid scope drift, run only targeted tests (no coverage), avoid partial…
195 GitHub stars~686 tokensUpdated 2 mo ago
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Formax Tool UI Blocks Workflow
yusifeng/formax
Implement or refactor Formax tool transcript UI using the Tool UI Blocks (C-lite) pattern (ToolUiBlocks renderer + blocks presenters) to avoid touching many tool presenter files; use when adjusting…
195 GitHub stars~1.3k tokensUpdated 2 mo ago
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Formax Semantics Parity Workflow
yusifeng/formax
A skill your agent uses when implementing or modifying behavior that must stay consistent across TUI and Web (mode/input/tool/replay/order).
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Formax System Prompt Workflow
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A skill your agent uses when designing, refactoring, or debugging Formax system prompt assembly, system-reminder injection, or skills/deferred-tool prompt exposure semantics; mandatory for any…
195 GitHub stars~1k tokensUpdated 2 mo ago
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Questions about Formax Skill Capture

What does Formax Skill Capture do?

A skill your agent uses when we want to turn a just-finished Formax workflow (e.g. Formax Skill Capture is an agent skill from yusifeng/formax.g.

When should I use Formax Skill Capture?

Formax Skill Capture fits situations like: we want to turn a just-finished Formax workflow (e.g; tasks that involve Project scaffolding; tasks that involve LLM guardrails.

How do I install Formax Skill Capture in Claude Code?

Run `npx skills add yusifeng/formax --skill formax-skill-capture -a claude-code`. Or copy the skill folder (.codex/skills/formax-skill-capture in yusifeng/formax) into .claude/skills/formax-skill-capture in your project. Claude Code loads it when a task matches its description.

How do I install Formax Skill Capture in Codex?

Run `npx skills add yusifeng/formax --skill formax-skill-capture -a codex`. Or copy the skill folder (.codex/skills/formax-skill-capture in yusifeng/formax) into .agents/skills/formax-skill-capture in your project. Codex loads it when a task matches its description.

Can I use Formax Skill Capture 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 yusifeng/formax --skill formax-skill-capture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/formax-skill-capture, .gemini/skills/formax-skill-capture, .github/skills/formax-skill-capture and .opencode/skills/formax-skill-capture in your project.

What does Formax Skill Capture need to run?

Going by SKILL.md and its folder, Formax Skill Capture needs a shell for the scripts in its folder and the command-line tools its instructions call (bash). Our summary lists: A Bash shell.

Does Formax Skill Capture 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 Formax Skill Capture 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. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.

What licence does Formax Skill Capture use?

Formax Skill Capture is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Formax Skill Capture use?

About 530 tokens (SKILL.md is roughly 2.1k 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 Formax Skill Capture?

Skills that share tags, products or a category with Formax Skill Capture: Git Guardrails Claude Code (fossasia/eventyay-interpretation, 1.6k stars), Git Guardrails Claude Code (vinvcn/mattpocock-skills-zh-CN, 4.7k stars), Aisafetyhot (wuyoscar/AISafetyHot-Hub, 641 stars) and Google Agents CLI Adk Code (pifferologo/cloud-agents-cli, 129 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Formax Skill Capture?

yusifeng (a GitHub user) maintains it in yusifeng/formax, which has 195 GitHub stars. The repository holds 21 skills in this directory. The repository was last updated on July 24, 2026.

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

Install Formax Skill Capture

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Formax skill capture (create skills from our workflow)

What this is

When to use

Minimal questions to ask (do not proceed until answered)

Output requirements

Create a new skill (scaffold)

Refactor policy for skills

Files

Compare with similar skills

Similar skills

More from yusifeng/formax

Related

Questions about Formax Skill Capture