agt

A modular toolkit for extending AI coding agents (Claude Code, Codex CLI, Gemini CLI)

Install and manage skills, personas, and hooks for AI coding agents. Each skill is a self-contained markdown module that gives an agent domain-specific capabilities.

Quick Start

# No install needed — use npx
npx @open330/agt skill install --profile core
npx @open330/agt persona install -g --from jiunbae/agent-skills

# Or install globally
npm install -g @open330/agt
agt skill install --profile core
agt persona install -g --all

Commands

agt skill — Skill Management

agt skill install kubernetes-skill        # Install to current workspace
agt skill install -g git-commit-pr        # Install globally
agt skill install --profile core          # Install a profile (curated set)
agt skill install --from user/repo        # Install from a remote skills repo
agt skill list                            # List all available skills
agt skill list --installed                # Show installed only
agt skill update                          # Update all remote-installed skills
agt skill uninstall kubernetes-skill      # Remove a skill

agt persona — Persona Management

agt persona list                                  # List personas
agt persona install -g security-reviewer          # Install globally
agt persona install -g --all                      # Install all personas
agt persona create rust-expert --ai "Rust unsafe" # AI-generated persona
agt persona review security-reviewer              # Run code review with persona
agt persona review security-reviewer --codex      # Use Codex CLI
agt persona show security-reviewer                # View persona details

agt run — Skill Execution

agt run "scan for security issues"              # Auto skill matching
agt run --skill security-auditor "scan"         # Specify skill explicitly

agt hook — Hook Management

agt hook install english-coach                  # Install a hook
agt hook list                                   # List available hooks

agt team — Multi-Agent Teams

agt team run review                             # Run a team of agents
agt team list                                   # List available teams

Core Skills

Installed by default with --profile core:

| Skill | Description | |-------|-------------| | git-commit-pr | Git commit & PR guide with security validation | | context-manager | Project context auto-loader | | static-index | Global static context index | | security-auditor | Repository security audit | | background-implementer | Parallel multi-LLM implementation | | background-planner | Parallel multi-LLM planning | | background-reviewer | Multi-LLM parallel code review |

Skills Catalog

33 skills across 8 categories:

| Category | Skills | |----------|--------| | Agents | background-implementer, background-planner, background-reviewer | | Development | context-worktree, git-commit-pr, iac-deploy-prep, multi-ai-code-review, playwright, pr-review-loop, task-master | | Business | bm-analyzer, document-processor, proposal-analyzer | | Integrations | appstore-connect, discord, google-search-console, kubernetes, notion-summary, obsidian-tasks, obsidian-writer, service-manager, slack, vault-secrets | | ML/AI | audio-processor, ml-benchmark, model-sync, triton-deploy | | Security | security-auditor | | Context | context-manager, static-index | | Meta | karpathy-guide, skill-manager, skill-recommender |

Personas

7 expert personas for AI-powered code review:

| Persona | Domain | |---------|--------| | security-reviewer | OWASP, auth, injection | | architecture-reviewer | SOLID, API design, coupling | | code-quality-reviewer | Readability, complexity, DRY | | performance-reviewer | Memory, CPU, I/O, scalability | | database-reviewer | Query optimization, schema, indexing | | frontend-reviewer | React, accessibility, performance | | devops-reviewer | K8s, IaC, CI/CD |

Creating Your Own Skills Repo

You can create your own skills repository that agt discovers automatically:

my-skills/
├── agents/
│   └── my-agent/
│       └── SKILL.md
├── development/
│   └── my-tool/
│       └── SKILL.md
├── personas/
│   └── my-reviewer/
│       └── PERSONA.md
├── profiles.yml
├── agt.toml
└── README.md

# Others install from your repo
agt skill install --from you/my-skills
agt persona install --from you/my-skills

See full documentation for SKILL.md format, PERSONA.md format, profiles.yml, and agt.toml specifications.

Platform Support

| Platform | Architecture | |----------|-------------| | macOS | arm64 (Apple Silicon), x64 (Intel) | | Linux | x64, arm64 |

Binary is automatically downloaded during npm install. If the optional platform package fails, a fallback download from GitHub Releases is attempted.

Links

• GitHub: open330/agt
• Skills Repository: jiunbae/agent-skills
• Issues: Report bugs

License

MIT