Agent Browser CLI
vercel-labs/agent-browser
Browser automation CLI for AI agents. Use when the user needs to interact with websites, including navigating pages, filling forms, clicking buttons, taking…
Manage, build, test, package, install, and debug the Ivy Tendril extension in Antigravity IDE and VS Code.
Custom licenceAuto-check: warnings
Install Tendril Extension
The automated check flagged lines worth reading first. See the safety section below.
$ npx skills add Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Ivy-Interactive/Ivy-Tendril tendril-extension --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/Ivy-Interactive/Ivy-Tendril.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/tendril-extension .claude/skills/tendril-extension && 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 "tendril-extension" agent skill from https://github.com/Ivy-Interactive/Ivy-Tendril/tree/development/skills/tendril-extension into .claude/skills/tendril-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tendril-extension", 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/Ivy-Interactive/Ivy-Tendril/tree/development/skills/tendril-extensionType 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 Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Ivy-Interactive/Ivy-Tendril tendril-extension --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Ivy-Interactive/Ivy-Tendril.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/tendril-extension .agents/skills/tendril-extension && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "tendril-extension" agent skill from https://github.com/Ivy-Interactive/Ivy-Tendril/tree/development/skills/tendril-extension into .agents/skills/tendril-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tendril-extension", 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 Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Ivy-Interactive/Ivy-Tendril tendril-extension --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Ivy-Interactive/Ivy-Tendril.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/tendril-extension .cursor/skills/tendril-extension && 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 "tendril-extension" agent skill from https://github.com/Ivy-Interactive/Ivy-Tendril/tree/development/skills/tendril-extension into .cursor/skills/tendril-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tendril-extension", 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/Ivy-Interactive/Ivy-Tendril.git --path skills/tendril-extension--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 Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Ivy-Interactive/Ivy-Tendril tendril-extension --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Ivy-Interactive/Ivy-Tendril.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/tendril-extension .gemini/skills/tendril-extension && 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 "tendril-extension" agent skill from https://github.com/Ivy-Interactive/Ivy-Tendril/tree/development/skills/tendril-extension into .gemini/skills/tendril-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tendril-extension", 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 Ivy-Interactive/Ivy-Tendril tendril-extensionInstalls 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 Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Ivy-Interactive/Ivy-Tendril.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/tendril-extension .github/skills/tendril-extension && 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 "tendril-extension" agent skill from https://github.com/Ivy-Interactive/Ivy-Tendril/tree/development/skills/tendril-extension into .github/skills/tendril-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tendril-extension", 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 Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Ivy-Interactive/Ivy-Tendril tendril-extension --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Ivy-Interactive/Ivy-Tendril.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/tendril-extension .opencode/skills/tendril-extension && 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 "tendril-extension" agent skill from https://github.com/Ivy-Interactive/Ivy-Tendril/tree/development/skills/tendril-extension into .opencode/skills/tendril-extension/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "tendril-extension", 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
tendril-extension- GitHub stars
- 202
- Token cost
- ~635 tokens
- SKILL.md length
- 192 words
- Files
- 5 (incl. scripts, references)
- Skills in repo
- 6
- Repo updated
- First seen
- Licence
- Custom licence
At a glance
Manage, build, test, package, install, and debug the Ivy Tendril extension in Antigravity IDE and VS Code.
- Works in 4 steps: Install / Link to Antigravity IDE → Package as .vsix Archive → Run Extension Tests & Typecheck → …
- The user asks to install
- SKILL.md covers Directory & Environment and Common Workflows
- Runs Shell scripts from its folder; calls pnpm and npx
What it does
Tendril Extension is an agent skill from Ivy-Interactive/Ivy-Tendril. Manage, build, test, package, install, and debug the Ivy Tendril extension in Antigravity IDE and VS Code. Use when the user asks to install, link, update, build, test, or package the Ivy Tendril extension for Antigravity IDE.
Its SKILL.md is about 640 tokens, which your agent loads only when the skill is triggered. The skill folder holds 6 other files, including scripts and reference files (for example `references/antigravity-integration.md`, `scripts/install-antigravity.sh` and `scripts/package-vsix.sh`).
It works with Visual Studio Code. The repository describes itself as: AI agents can now write 99% of the code. This changes what it means to be a developer. Our role shifts to knowing "what good looks like". To do that, we need completely new…
When your agent uses it
- The user asks to install
- Package the Ivy Tendril extension for Antigravity IDE
Example prompts
- “/tendril-extension”
Requirements
- Node.js
- A Bash shell
Workflow steps
4 steps, taken from the step headings in SKILL.md.
- Install / Link to Antigravity IDE
- Package as .vsix Archive
- Run Extension Tests & Typecheck
- Uninstall / Unlink from Antigravity IDE
What it can do on your machine
Read from SKILL.md and the folder at commit 3a1a241. 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 3 files in scripts/ (Shell), which the agent can run.
Shell commands in SKILL.md call:
pnpmnpx
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md. Its commands use pnpm and npx, 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
Tendril Extension loads about 635 tokens when it runs, and up to ~966 if it reads all its reference files. Until then it costs about 61 tokens; SKILL.md has 192 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: warnings
The automated check found patterns that need a careful read before installing.
- WarningMentions a credentials file (SSH keys, cloud or package-manager tokens)SKILL.md:17
`pnpm` (fixed versions configured via `.npmrc`)
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
Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 192 words (~635 tokens).
“This skill provides procedures and helper scripts for building, testing, packaging, and installing the Ivy Tendril extension directly into Antigravity IDE or VS Code.”
- name
- tendril-extension
Files
SKILL.md and 4 other files (scripts, references) in skills/tendril-extension of Ivy-Interactive/Ivy-Tendril.
- SKILL.md
- references/antigravity-integration.md
- scripts/install-antigravity.sh
- scripts/package-vsix.sh
- scripts/uninstall-antigravity.sh
Open the folder on GitHubat commit 3a1a241
Compare with similar skills
Tendril Extension 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 |
|---|---|---|---|---|---|---|
| Tendril Extension this skillIvy-Interactive/Ivy-Tendril | 202 | — | ~635 | Automated safety check: Warn | Custom licence | |
| Agent Browser CLIvercel-labs/agent-browser | 44k | 24 repos | ~864 | Automated safety check: Pass | Apache-2.0 | |
| Electron App Automationvercel-labs/agent-browser | 44k | 5 repos | ~1.7k | Automated safety check: Pass | Apache-2.0 | |
| Microsoft Skill CreatorMicrosoftDocs/mcp | 1.9k | 3 repos | ~2.1k | Automated safety check: Pass | CC-BY-4.0 | |
| Evals Contextzgsm-ai/costrict | 4.5k | 1 repos | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Ketch1broseidon/ketch | 702 | 1 repos | ~3.9k | Automated safety check: Pass | MIT |
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Find "Tendrillable" GitHub issues - open, recent, code-requiring issues that an agent can plan and one-shot WITHOUT asking clarifying questions, with high probability of success.
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Analyze a Tendril job's execution artifacts to identify issues and improvement opportunities in Tendril, promptware instructions, memory, or tools.
Tendril Review
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Comprehensive post-change review of all modified files. An agent skill from Ivy-Interactive/Ivy-Tendril.
Related
Works with
Questions about Tendril Extension
What does Tendril Extension do?
Manage, build, test, package, install, and debug the Ivy Tendril extension in Antigravity IDE and VS Code. Tendril Extension is an agent skill from Ivy-Interactive/Ivy-Tendril. Manage, build, test, package, install, and debug the Ivy Tendril extension in Antigravity IDE and VS Code.
When should I use Tendril Extension?
Tendril Extension fits situations like: the user asks to install; package the Ivy Tendril extension for Antigravity IDE.
How do I install Tendril Extension in Claude Code?
Run `npx skills add Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a claude-code`. Or copy the skill folder (skills/tendril-extension in Ivy-Interactive/Ivy-Tendril) into .claude/skills/tendril-extension in your project. Claude Code loads it when a task matches its description.
How do I install Tendril Extension in Codex?
Run `npx skills add Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a codex`. Or copy the skill folder (skills/tendril-extension in Ivy-Interactive/Ivy-Tendril) into .agents/skills/tendril-extension in your project. Codex loads it when a task matches its description.
Can I use Tendril Extension 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 Ivy-Interactive/Ivy-Tendril --skill tendril-extension -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/tendril-extension, .gemini/skills/tendril-extension, .github/skills/tendril-extension and .opencode/skills/tendril-extension in your project.
What does Tendril Extension need to run?
Going by SKILL.md and its folder, Tendril Extension needs a shell for the scripts in its folder and the command-line tools its instructions call (pnpm and npx). Our summary lists: Node.js; A Bash shell.
Does Tendril Extension access the network?
SKILL.md contains no URLs. Its commands use npx, which can reach the network depending on how they are called. This is read from the text; nothing was executed.
Is Tendril Extension safe to install?
Our automated static check of SKILL.md flagged 1 warning(s): mentions a credentials file (ssh keys, cloud or package-manager tokens). Read the flagged lines before installing; the check is not a guarantee either way. The check reads SKILL.md only: the scripts in the folder are not scanned, so read them before running anything.
What licence does Tendril Extension use?
Tendril Extension 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 Tendril Extension use?
About 635 tokens (SKILL.md is roughly 2.5k 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 331 tokens, read only when the agent opens those files.
What are the alternatives to Tendril Extension?
Skills that share tags, products or a category with Tendril Extension: Agent Browser CLI (vercel-labs/agent-browser, 44k stars), Electron App Automation (vercel-labs/agent-browser, 44k stars), Microsoft Skill Creator (MicrosoftDocs/mcp, 1.9k stars) and Evals Context (zgsm-ai/costrict, 4.5k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Tendril Extension?
Ivy-Interactive (a GitHub organization) maintains it in Ivy-Interactive/Ivy-Tendril, which has 202 GitHub stars. The repository holds 6 skills in this directory. The repository was last updated on September 15, 2026.
Source: Ivy-Interactive/Ivy-Tendril on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.