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
npx @open330/agt skill install --profile core
npx @open330/agt persona install -g --from jiunbae/agent-skills
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
agt skill install -g git-commit-pr
agt skill install --profile core
agt skill install --from user/repo
agt skill list
agt skill list --installed
agt skill update
agt skill uninstall kubernetes-skill
agt persona — Persona Management
agt persona list
agt persona install -g security-reviewer
agt persona install -g --all
agt persona create rust-expert --ai "Rust unsafe"
agt persona review security-reviewer
agt persona review security-reviewer --codex
agt persona show security-reviewer
agt run — Skill Execution
agt run "scan for security issues"
agt run --skill security-auditor "scan"
agt hook — Hook Management
agt hook install english-coach
agt hook list
agt team — Multi-Agent Teams
agt team run review
agt team list
Core Skills
Installed by default with --profile core:
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:
| 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:
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
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
| 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
License
MIT