Staff Engineer Mode

Staff Engineer Mode packages major-outage lessons as one router skill for AI coding agents. Use it when engineering prompts need production judgment across architecture, reliability, security, delivery, operations, maintenance, documentation lifecycle, platform, data, or release work. The upstream repo exposes one native staff-engineer-mode router instead of 54 separate installed skills. The router classifies the artifact and phase, then loads one primary specialist from the repo's specialists/ directory. That keeps startup context small while preserving targeted guidance for design reviews, incident handling, release readiness, security checks, API compatibility, SLOs, migration work, and operational documentation. The project includes .claude-plugin and .codex-plugin manifests plus install paths for Cursor, OpenCode, GitHub Copilot CLI, and Gemini CLI.

Install from the upstream repository so the router can load its specialist files. Copying only this catalog entry will not include the specialist guidance.

Installation

Claude Code

claude plugin marketplace add https://github.com/sirmarkz/staff-engineer-mode.git
claude plugin install staff-engineer-mode@staff-engineer-mode

Codex

codex plugin marketplace add https://github.com/sirmarkz/staff-engineer-mode.git
codex plugin add staff-engineer-mode@staff-engineer-mode

Direct Repo

git clone https://github.com/sirmarkz/staff-engineer-mode.git

See the upstream README for Cursor, OpenCode, GitHub Copilot CLI, and Gemini CLI installation commands.