Prior Art Scout
n1m21n/Infinite
Find publicly documented solutions (peer repos, GitHub, forums) to bugs, platform quirks, dependency gotchas or architectural patterns, respecting the copyleft discussions-only rule.
“Adds the standard open-source license header to new source files. Use involves creating new code files that require copyright attribution.”
Install License Header Adder
$ npx skills add rominirani/antigravity-skills --skill license-header-adder -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install rominirani/antigravity-skills license-header-adder --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/rominirani/antigravity-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills_tutorial/license-header-adder .claude/skills/license-header-adder && 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 "license-header-adder" agent skill from https://github.com/rominirani/antigravity-skills/tree/main/skills_tutorial/license-header-adder into .claude/skills/license-header-adder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "license-header-adder", 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/rominirani/antigravity-skills/tree/main/skills_tutorial/license-header-adderType 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 rominirani/antigravity-skills --skill license-header-adder -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install rominirani/antigravity-skills license-header-adder --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rominirani/antigravity-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills_tutorial/license-header-adder .agents/skills/license-header-adder && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "license-header-adder" agent skill from https://github.com/rominirani/antigravity-skills/tree/main/skills_tutorial/license-header-adder into .agents/skills/license-header-adder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "license-header-adder", 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 rominirani/antigravity-skills --skill license-header-adder -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install rominirani/antigravity-skills license-header-adder --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rominirani/antigravity-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills_tutorial/license-header-adder .cursor/skills/license-header-adder && 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 "license-header-adder" agent skill from https://github.com/rominirani/antigravity-skills/tree/main/skills_tutorial/license-header-adder into .cursor/skills/license-header-adder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "license-header-adder", 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/rominirani/antigravity-skills.git --path skills_tutorial/license-header-adder--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 rominirani/antigravity-skills --skill license-header-adder -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install rominirani/antigravity-skills license-header-adder --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rominirani/antigravity-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills_tutorial/license-header-adder .gemini/skills/license-header-adder && 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 "license-header-adder" agent skill from https://github.com/rominirani/antigravity-skills/tree/main/skills_tutorial/license-header-adder into .gemini/skills/license-header-adder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "license-header-adder", 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 rominirani/antigravity-skills license-header-adderInstalls 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 rominirani/antigravity-skills --skill license-header-adder -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/rominirani/antigravity-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills_tutorial/license-header-adder .github/skills/license-header-adder && 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 "license-header-adder" agent skill from https://github.com/rominirani/antigravity-skills/tree/main/skills_tutorial/license-header-adder into .github/skills/license-header-adder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "license-header-adder", 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 rominirani/antigravity-skills --skill license-header-adder -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install rominirani/antigravity-skills license-header-adder --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/rominirani/antigravity-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills_tutorial/license-header-adder .opencode/skills/license-header-adder && 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 "license-header-adder" agent skill from https://github.com/rominirani/antigravity-skills/tree/main/skills_tutorial/license-header-adder into .opencode/skills/license-header-adder/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "license-header-adder", 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
license-header-adder- GitHub stars
- 592
- Token cost
- ~294 tokens
- SKILL.md length
- 104 words
- Files
- 2
- Skills in repo
- 5
- Repo updated
- First seen
- Licence
- None found
At a glance
- Works in 3 steps: Read the Template → Prepend to File → Modify Comment Syntax
- SKILL.md covers Instructions and Example Usage
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
About this skill
License Header Adder is a skill in rominirani/antigravity-skills (592 stars). Its SKILL.md is about 294 tokens, with 1 other file in the folder. No licence found.
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- Read the Template
- Prepend to File
- Modify Comment Syntax
What it can do on your machine
Read from SKILL.md and the folder at commit 731acca. 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
No scripts in the folder and no shell commands in SKILL.md (its code samples are python).
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
License Header Adder loads about 294 tokens when it runs. Until then it costs about 40 tokens; SKILL.md has 104 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 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 104 words (~294 tokens).
“This skill ensures that all new source files have the correct copyright header.”
- name
- license-header-adder
Files
SKILL.md and 1 other file in skills_tutorial/license-header-adder of rominirani/antigravity-skills.
- SKILL.md
- resources/HEADER_TEMPLATE.txt
Open the folder on GitHubat commit 731acca
Compare with similar skills
License Header Adder 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 |
|---|---|---|---|---|---|---|
| License Header Adder this skillrominirani/antigravity-skills | 592 | — | ~294 | Automated safety check: Pass | None | |
| Prior Art Scoutn1m21n/Infinite | 271 | — | ~1.3k | Automated safety check: Pass | Custom licence | |
| Open-Source Release Readinesstrailofbits/skills | 7.5k | — | ~2.6k | Automated safety check: Pass | CC-BY-SA-4.0 | |
| China Software Copyright MaterialsLight0305/Light-skills | 640 | — | ~1.9k | Automated safety check: Pass | MIT | |
| MCP Documentation Standardpatsnap/mcp | 113 | — | ~1.2k | Automated safety check: Pass | Apache-2.0 | |
| Designsynnaxlabs/synnax | 128 | — | ~4.5k | Automated safety check: Pass | Custom licence |
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Light0305/Light-skills
Prepares draft materials for a China software copyright registration from a real project: application worksheet, source deposit plan, operation manual and consistency checks.
MCP Documentation Standard
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Create or update Patsnap MCP catalog documentation in this repository.
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Process and hard rules for designing and planning complex new features, refactors, and re-architectures.
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Categories
Questions about License Header Adder
How do I install License Header Adder in Claude Code?
Run `npx skills add rominirani/antigravity-skills --skill license-header-adder -a claude-code`. Or copy the skill folder (skills_tutorial/license-header-adder in rominirani/antigravity-skills) into .claude/skills/license-header-adder in your project. Claude Code loads it when a task matches its description.
How do I install License Header Adder in Codex?
Run `npx skills add rominirani/antigravity-skills --skill license-header-adder -a codex`. Or copy the skill folder (skills_tutorial/license-header-adder in rominirani/antigravity-skills) into .agents/skills/license-header-adder in your project. Codex loads it when a task matches its description.
Can I use License Header Adder 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 rominirani/antigravity-skills --skill license-header-adder -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/license-header-adder, .gemini/skills/license-header-adder, .github/skills/license-header-adder and .opencode/skills/license-header-adder in your project.
What does License Header Adder need to run?
SKILL.md names no scripts, command-line tools or credentials: License Header Adder is instructions for the agent only.
Does License Header Adder 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 License Header Adder 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 License Header Adder use?
No licence was found for License Header Adder or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does License Header Adder use?
About 294 tokens (SKILL.md is roughly 1.2k 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 License Header Adder?
Skills that share tags, products or a category with License Header Adder: Prior Art Scout (n1m21n/Infinite, 271 stars), Open-Source Release Readiness (trailofbits/skills, 7.5k stars), China Software Copyright Materials (Light0305/Light-skills, 640 stars) and MCP Documentation Standard (patsnap/mcp, 113 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains License Header Adder?
rominirani (a GitHub user) maintains it in rominirani/antigravity-skills, which has 592 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on June 27, 2026.
Source: rominirani/antigravity-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.