skillsets

skillsets

A personal collection of agent skills for software and research engineering, packaged as a single cross-platform plugin. Each skill is a self-contained, model-agnostic instruction set that runs on Claude (Claude Code), Codex, and Antigravity (Gemini) from the same source.

About

Every skill encodes a disciplined workflow rather than a prompt: classify the task, gather evidence, apply domain references, and verify before handoff. The goal is to keep agent output grounded in explicit forces, trade-offs, and a verification path instead of surface-level answers.

Skills

Skill	Scope
skills/software-architecture-engineering-uap	Design, evaluate, document, modernize, and refactor software architecture and code structure; microservices patterns; clean code; IAM/auth; NFR tactics; ADR/RFC; implementation planning.
skills/uiux-frontend-engineering	Research, design, implement, and validate UI/UX and frontend interfaces for web, mobile, responsive apps, design systems, theme tokens, and XR/spatial surfaces.
skills/data-architect-engineering	Design, review, migrate, optimize, secure, and operate SQL, NoSQL, vector, graph, search, cache, big-data, lakehouse, and warehouse systems.
skills/device-driver-development	Linux kernel device drivers, modules, device tree bindings, bus clients, DMA/IRQ/memory paths, bring-up, and upstreaming.
skills/realtime-systems-coding	Concurrent, parallel, distributed, real-time, and network-dataplane systems; locks/monitors, RMS/EDF scheduling, DPDK/XDP, kernel bypass.
skills/tech-leadership	CTO and technology leadership: strategy, cybersecurity, requirements, framework selection, people, delivery, risk, KPIs, roadmap, budgeting, and governance.
skills/academic-research-journal	Evaluate, design, draft, and revise academic articles, literature/systematic reviews, journal submissions, and source/integrity audits.

Layout

The repository is one plugin. Skills live under skills/, and each platform reads its own manifest:

.claude-plugin/
  plugin.json         # Claude Code plugin metadata
  marketplace.json    # Claude Code marketplace entry
.codex-plugin/
  plugin.json         # Codex plugin metadata + interface
gemini-extension.json # Antigravity (Gemini) extension manifest
GEMINI.md             # Antigravity context file (includes AGENTS.md)
AGENTS.md             # Cross-platform agent orientation
hooks/
  hooks.json          # SessionStart orientation hook (Claude Code)
  session-start.sh    # emits the skillset orientation as additionalContext
.mcp.json             # MCP servers (Context7, GitHub, Postgres, arXiv)
LICENSE               # MIT
skills/
  <skill>/
    SKILL.md            # Claude skill manifest (frontmatter: name, description)
    agent.md            # Agent identity and operating model
    agents/openai.yaml  # Codex interface config and default prompt
    tasks/              # Step-by-step task workflows
    references/         # Domain reference material
    scripts/            # Helper scripts (static scans, probes)
    commands/           # Slash commands (where applicable)

Install

Claude (Claude Code)

claude plugin marketplace add oghie/skillsets
claude plugin install skillsets

Skills under skills/ auto-discover; Claude reads each SKILL.md and the description field drives auto-invocation.

Codex

Install the plugin from the same repository (oghie/skillsets). Codex reads .codex-plugin/plugin.json, which points at ./skills/ and exposes the bundled skills through its interface block.

Antigravity (Gemini)

Install this repository as a Gemini extension. Antigravity reads gemini-extension.json and loads GEMINI.md, which pulls in AGENTS.md for shared agent orientation.

MCP servers

The plugin ships a .mcp.json with four optional MCP servers. They are lazy-loaded and only matter for skills that benefit from live external data; each needs its own runtime and, where noted, configuration. A server that is not configured simply fails to start and shows up in /mcp — it does not block a session.

Server	Backs	Runtime	Configuration
context7	All engineering skills (current library/API docs)	Node 18+ (npx)	None required; set CONTEXT7_API_KEY for higher rate limits.
github	tech-leadership, software-architecture (repos, issues, PRs)	none (remote HTTP)	OAuth on first use against https://api.githubcopilot.com/mcp/.
postgres	data-architect-engineering (schema, EXPLAIN, index tuning)	uv (uvx postgres-mcp)	Optional. Set DATABASE_URI to your connection string to activate it; if unset it stays inactive and the plugin loads normally. Runs in restricted (read-only) mode.
arxiv	academic-research-journal (paper search, source audits)	uv (uvx arxiv-mcp-server)	None required.