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.
Configure and orchestrate parallel agents using the standalone Antigravity 2.0 Agent Manager and Antigravity IDE.
Install Antigravity Agent Manager
$ npx skills add sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install sickn33/agentic-awesome-skills antigravity-agent-manager --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/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/antigravity-agent-manager .claude/skills/antigravity-agent-manager && 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 "antigravity-agent-manager" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/antigravity-agent-manager into .claude/skills/antigravity-agent-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "antigravity-agent-manager", 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/sickn33/agentic-awesome-skills/tree/main/skills/antigravity-agent-managerType 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 sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install sickn33/agentic-awesome-skills antigravity-agent-manager --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/antigravity-agent-manager .agents/skills/antigravity-agent-manager && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "antigravity-agent-manager" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/antigravity-agent-manager into .agents/skills/antigravity-agent-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "antigravity-agent-manager", 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 sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install sickn33/agentic-awesome-skills antigravity-agent-manager --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/antigravity-agent-manager .cursor/skills/antigravity-agent-manager && 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 "antigravity-agent-manager" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/antigravity-agent-manager into .cursor/skills/antigravity-agent-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "antigravity-agent-manager", 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/sickn33/agentic-awesome-skills.git --path skills/antigravity-agent-manager--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 sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install sickn33/agentic-awesome-skills antigravity-agent-manager --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/antigravity-agent-manager .gemini/skills/antigravity-agent-manager && 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 "antigravity-agent-manager" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/antigravity-agent-manager into .gemini/skills/antigravity-agent-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "antigravity-agent-manager", 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 sickn33/agentic-awesome-skills antigravity-agent-managerInstalls 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 sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/antigravity-agent-manager .github/skills/antigravity-agent-manager && 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 "antigravity-agent-manager" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/antigravity-agent-manager into .github/skills/antigravity-agent-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "antigravity-agent-manager", 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 sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install sickn33/agentic-awesome-skills antigravity-agent-manager --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/antigravity-agent-manager .opencode/skills/antigravity-agent-manager && 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 "antigravity-agent-manager" agent skill from https://github.com/sickn33/agentic-awesome-skills/tree/main/skills/antigravity-agent-manager into .opencode/skills/antigravity-agent-manager/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "antigravity-agent-manager", 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
antigravity-agent-manager- GitHub stars
- 47k
- Used in
- 1 other repo
- Token cost
- ~1.4k tokens
- SKILL.md length
- 588 words
- Files
- 1
- Skills in repo
- 1,493
- Repo updated
- First seen
- Licence
- MIT
At a glance
Configure and orchestrate parallel agents using the standalone Antigravity 2.0 Agent Manager and Antigravity IDE.
- Works in 3 steps: Parallel Installation → Dual-Workspace Setup → Coordinating Agent Execution
- Tasks that involve Subagents
- SKILL.md covers Overview, When to Use This Skill, How It Works and Examples, plus 4 more sections
- Calls git
What it does
Antigravity Agent Manager is an agent skill from sickn33/agentic-awesome-skills. Configure and orchestrate parallel agents using the standalone Antigravity 2.0 Agent Manager and Antigravity IDE.
Its SKILL.md is about 1.4k 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: AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes… The licence is MIT.
When your agent uses it
- Tasks that involve Subagents
Example prompts
- “/antigravity-agent-manager”
Workflow steps
3 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit 680176d. 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
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
Antigravity Agent Manager loads about 1.4k tokens when it runs. Until then it costs about 35 tokens; SKILL.md has 588 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
The full file from sickn33/agentic-awesome-skills at commit 680176d, republished under its MIT licence (© sickn33). 588 words, ~1,368 tokens.
Download SKILL.mdSave it as
.claude/skills/antigravity-agent-manager/SKILL.md (or your agent's skills folder).- name
- antigravity-agent-manager
- description
- Configure and orchestrate parallel agents using the standalone Antigravity 2.0 Agent Manager and Antigravity IDE.
- category
- general
- risk
- critical
- source
- self
- source_type
- self
- date_added
- 2026-06-04
- author
- community
- tags
- agent-manager, orchestration, multi-agent, setup
- tools
- antigravity, gemini
Antigravity Agent Manager
Overview
A playbook for orchestrating multi-agent systems using the standalone Antigravity 2.0 Agent Manager (white icon) in parallel with the Antigravity IDE (black icon).
Starting with version 2.0, Google decoupled the Agent Manager from the main IDE interface, removing the "Open Agent Manager" button. This skill outlines how to install, configure, and operate the two environments side-by-side to direct multiple AI agents on front-end and back-end projects simultaneously.
When to Use This Skill
- Use when you need to coordinate multiple front-end, back-end, or QA agents working on the same codebase simultaneously.
- Use when setting up the dual-window workspace (Antigravity IDE + Antigravity 2.0 Agent Manager).
- Use to resolve conflicts or obsolete tutorial steps that mention the integrated "Open Agent Manager" button.
How It Works
Step 1: Parallel Installation
- Keep your current Antigravity IDE: Do not uninstall the classic IDE (black icon).
- Download Antigravity 2.0: Fetch the standalone Agent Manager application from the official Antigravity downloads page.
- Install: Run the installer. It will install alongside your existing IDE without overwriting it. You should now have both:
- Antigravity IDE (Black Icon) — Your code editor and manual development workspace.
- Antigravity 2.0 (White Icon) — Your multi-agent orchestrator dashboard.
Step 2: Dual-Workspace Setup
- Open both the Antigravity IDE and Antigravity 2.0 applications.
- Load the same project directory (e.g.,
C:/Users/erwinpzocikk/Dev/GroupProjects/intIntercatedraAdmin) in both apps. - In the Agent Manager (white icon), configure your Agent pool. Assign specialized roles (e.g.,
frontend-agent,backend-agent,qa-validator).
Step 3: Coordinating Agent Execution
- In the Agent Manager, define the task scopes. To prevent directory conflicts and race conditions:
- Assign the
backend-agentto the server directory (e.g.,/serveror/api). - Assign the
frontend-agentto the frontend directory (e.g.,/clientor/src).
- Assign the
- Run the agents in parallel.
- Use the Antigravity IDE (black icon) to monitor file changes in real-time, review diffs, and perform manual tweaks.
Examples
Example 1: Defining Independent Scopes in Multi-Agent Projects
When configuring the Agent Manager dashboard, specify the target files or directories in the prompts to keep agents from colliding:
Backend Agent Task Prompt:
Role: Backend Developer Agent
Workspace Target: /server
Task: Add a new POST /api/v1/students endpoint in server/routes/students.js and update database/models/student.js. Do not edit files outside the /server directory.Frontend Agent Task Prompt:
Role: Frontend UI Agent
Workspace Target: /client
Task: Build the student registration form under client/components/StudentForm.jsx. Consume the /api/v1/students endpoint. Do not edit files outside the /client directory.Show full SKILL.md (241 more words)Show less
Example 2: Synchronizing Changes via Git
Since agents write code in parallel, sync their work using git in your IDE terminal:
# In the Antigravity IDE terminal, check the changes written by the agents
git status
# Review diffs before committing
git diff
# Commit stable checkpoints so both agents stay in sync with main branch
git add .
git commit -m "feat: synchronize parallel front-end and back-end agent changes"Best Practices
- ✅ Do: Run both applications simultaneously side-by-side.
- ✅ Do: Enforce strict folder-level boundaries (scopes) for each agent in the Agent Manager.
- ✅ Do: Use git branches or commits to checkpoint progress before letting agents perform massive rewrites.
- ❌ Don't: Let multiple agents edit the same file at the same time, as it causes write conflicts and git merge conflicts.
- ❌ Don't: Search for the "Open Agent Manager" button in the black icon IDE; use the standalone white icon application instead.
Limitations
- This skill assumes you have local administrator permissions to install both applications on Windows/macOS.
- Coordination of file locks relies on standard IDE file-system watchers. If changes do not reflect, reload the IDE workspace (
Ctrl+Ror developer reload).
Common Pitfalls
- Problem: Agents overwrite each other's code or get stuck in write locks. Solution: Isolate their workspaces. If they must edit the same file, orchestrate them sequentially (e.g., run the backend agent first, commit its changes, then run the frontend agent).
- Problem: Agent Manager changes are not visible in the IDE. Solution: Verify that both applications are pointing to the exact same absolute file path. On Windows, watch out for mapped drives or symlinks.
Related Skills
@antigravity-workflows- To guide the agent through sequential multi-agent execution.@antigravity-skill-orchestrator- For task complexity assessment and general skill routing.@gitops-workflow- To coordinate commits and branch merges in team environments.
© sickn33, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/antigravity-agent-manager of sickn33/agentic-awesome-skills.
Open the folder on GitHubat commit 680176d
Used in 1 other repository
We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in sickn33/agentic-awesome-skills, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Antigravity Agent Manager 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 |
|---|---|---|---|---|---|---|
| Antigravity Agent Manager this skillsickn33/agentic-awesome-skills | 47k | 1 repos | ~1.4k | Automated safety check: Pass | MIT | |
| Claude Code Agent Developmentanthropics/claude-plugins-official | 38k | 7 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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Categories
Questions about Antigravity Agent Manager
What does Antigravity Agent Manager do?
Configure and orchestrate parallel agents using the standalone Antigravity 2.0 Agent Manager and Antigravity IDE. Antigravity Agent Manager is an agent skill from sickn33/agentic-awesome-skills.0 Agent Manager and Antigravity IDE.
When should I use Antigravity Agent Manager?
Antigravity Agent Manager fits situations like: tasks that involve Subagents.
How do I install Antigravity Agent Manager in Claude Code?
Run `npx skills add sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a claude-code`. Or copy the skill folder (skills/antigravity-agent-manager in sickn33/agentic-awesome-skills) into .claude/skills/antigravity-agent-manager in your project. Claude Code loads it when a task matches its description.
How do I install Antigravity Agent Manager in Codex?
Run `npx skills add sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a codex`. Or copy the skill folder (skills/antigravity-agent-manager in sickn33/agentic-awesome-skills) into .agents/skills/antigravity-agent-manager in your project. Codex loads it when a task matches its description.
Can I use Antigravity Agent Manager 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 sickn33/agentic-awesome-skills --skill antigravity-agent-manager -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/antigravity-agent-manager, .gemini/skills/antigravity-agent-manager, .github/skills/antigravity-agent-manager and .opencode/skills/antigravity-agent-manager in your project.
What does Antigravity Agent Manager need to run?
Going by SKILL.md and its folder, Antigravity Agent Manager needs the command-line tools its instructions call (git).
Does Antigravity Agent Manager 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 Antigravity Agent Manager 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 Antigravity Agent Manager use?
Antigravity Agent Manager 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 Antigravity Agent Manager use?
About 1.4k tokens (SKILL.md is roughly 5.5k 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 Antigravity Agent Manager?
Skills that share tags, products or a category with Antigravity Agent Manager: Claude Code Agent Development (anthropics/claude-plugins-official, 38k 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 Antigravity Agent Manager?
sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,379 GitHub stars. The repository holds 1,493 skills in this directory. The repository was last updated on October 9, 2026.
Source: sickn33/agentic-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.