CRITICAL: Never use Read, Edit, or Write tools on ~/.cyrus/.env or any file inside ~/.cyrus/. Use only Bash commands (grep, printf >>, etc.) to interact with env files — secrets must never be read into the conversation context.
Setup Prerequisites
Checks system prerequisites and installs cyrus-ai.
Step 1: Detect Package Manager
If the user hasn't already specified their preferred package manager, ask:
Which package manager do you prefer? npm, pnpm, bun, or yarn?
Store the answer for use in this and subsequent skills.
Step 2: Check System Dependencies
Run the following checks and report results:
# Node.js >= 18
node --version
# jq (required for Claude Code parsing)
jq --version
# GitHub CLI (required for GitHub integration)
gh --versionFor each missing dependency, provide the install command:
| Dependency | macOS | Linux/Ubuntu | |
|---|---|---|---|
| Node.js | brew install node | `curl -fsSL https://deb.nodesource.com/setup_22.x \ | sudo -E bash - && sudo apt install -y nodejs` |
| jq | brew install jq | sudo apt install -y jq | |
| gh | brew install gh | See https://github.com/cli/cli/blob/trunk/docs/install_linux.md |
If all dependencies are present, print a checkmark for each and continue.
If any are missing, offer to install them (detect OS via uname). Wait for user confirmation before installing.
Step 3: Check for agent-browser (Optional)
If the user selected any integration surface (Linear, GitHub, Slack), check for agent-browser:
which agent-browserIf installed, ensure it's up to date:
npm update -g agent-browserIf not found, inform the user:
agent-browseris optional but enables automated app creation for Linear/GitHub/Slack. Without it, you'll be guided through manual setup steps instead. Install with:npm install -g agent-browser
Do NOT block on this — it's optional. Note whether it's available for downstream skills.
Step 4: Install cyrus-ai
Check if already installed:
which cyrusIf not found, install using the user's preferred package manager:
# npm
npm install -g cyrus-ai
# pnpm
pnpm install -g cyrus-ai
# bun
bun install -g cyrus-ai
# yarn
yarn global add cyrus-aiVerify installation:
cyrus --versionStep 5: Ensure ~/.cyrus directory exists
mkdir -p ~/.cyrusIf ~/.cyrus/.env already exists, note it and inform the user that existing values will be preserved.
Completion
Print a summary:
Prerequisites:
✓ Node.js v22.x
✓ jq 1.7
✓ gh 2.x
✓ cyrus-ai installed
✓ agent-browser available (or: ⚠ not installed — manual setup mode)