ITP Setup

Verify and install dependencies required by the

/itp:go

Self-Evolving Skill: This skill improves through use. If instructions are wrong, parameters drifted, or a workaround was needed — fix this file immediately, don't defer. Only update for real, reproducible issues.

MANDATORY FIRST ACTION

YOUR FIRST ACTION MUST BE TodoWrite with the template below.

DO NOT:

• Run any checks before TodoWrite
• Skip the interactive gate
• Install without user confirmation

Execute this TodoWrite template EXACTLY:

TodoWrite with todos:
- "Setup: Detect platform (macOS/Linux)" | pending | "Detecting platform"
- "Setup: Check Core Tools (uv, gh, prettier)" | pending | "Checking Core Tools"
- "Setup: Check ADR Diagram Tools (cpanm, graph-easy)" | pending | "Checking ADR Tools"
- "Setup: Check Code Audit Tools (ruff, semgrep, jscpd, gitleaks)" | pending | "Checking Audit Tools"
- "Setup: Check Release Tools (node, semantic-release)" | pending | "Checking Release Tools"
- "Setup: Present findings and disclaimer" | pending | "Presenting findings"
- "Setup: GATE - Await user decision" | pending | "Awaiting user decision"
- "Setup: Install missing tools (if confirmed)" | pending | "Installing missing tools"
- "Setup: Verify installation" | pending | "Verifying installation"

After TodoWrite completes, proceed to Phase 1 below.

Phase 1: Preflight Check

Mark each todo as

in_progress

completed

Todo 1: Detect Platform

/usr/bin/env bash << 'SETUP_EOF'
PLUGIN_DIR="${CLAUDE_PLUGIN_ROOT:-$HOME/.claude/plugins/marketplaces/cc-skills/plugins/itp}"
source "$PLUGIN_DIR/scripts/install-dependencies.sh" --detect-only
SETUP_EOF

Platform detection sets:

OS

PM

HAS_MISE

Todo 2: Check Core Tools

Check each tool using

command -v

command -v uv

command -v gh

command -v prettier

Record findings:

• Found:

  [OK] uv (installed)

  -> mark completed
• Missing:

  [x] prettier (missing)

  -> note for Phase 3

Todo 3: Check ADR Diagram Tools

command -v cpanm

echo "[A]" | graph-easy

Todo 4: Check Code Audit Tools

command -v ruff

command -v semgrep

command -v jscpd

command -v gitleaks

Todo 5: Check Release Tools

command -v node

npx semantic-release --version

command -v doppler

Phase 2: Present Findings (Interactive Gate)

Todo 6: Present Findings

IMPORTANT: Use mise-first commands when available

When presenting missing tool installation commands:

• If

  HAS_MISE=true

  (detected in Todo 1): Show mise commands
• If

  HAS_MISE=false

  : Show platform package manager commands (brew/apt)

Mise command reference (use when HAS_MISE=true):

mise use --global gitleaks

mise use --global ruff

mise use --global uv

brew install gh

mise use --global semgrep

mise use --global node

mise use --global doppler

mise use --global npm:prettier

npm i -g jscpd

Warning: gh CLI must be installed via Homebrew, not mise. mise-installed gh causes iTerm2 tab spawning issues with Claude Code. ADR

Display summary format (versions derived from actual tool output):

=== SETUP PREFLIGHT COMPLETE ===

Found: X tools | Missing: Y tools

Your existing installations:
[OK] uv (<derived from: uv --version>)
[OK] gh (<derived from: gh --version>)
[x] gitleaks (missing)
...

Note: This plugin is developed against latest tool versions.
Your existing installations are respected.

Missing tools will be installed via mise (detected):
  gitleaks -> mise use --global gitleaks

If HAS_MISE=false, show platform commands instead:

Missing tools will be installed via brew:
  gitleaks -> brew install gitleaks

IMPORTANT: Version numbers must be derived dynamically from running the actual tool's version command. Never hardcode version numbers.

Todo 7: GATE - Await User Decision

If missing tools exist, STOP and ask user:

Use AskUserQuestion with these options:

question: "Would you like to install the missing tools?"
header: "Install"
options:
  - label: "Install missing"
    description: "Automatically install all missing tools"
  - label: "Skip"
    description: "Show manual install commands and exit"

IMPORTANT: Do NOT proceed to Phase 3 until user responds.

If ALL tools present: Mark todo completed, skip to "All set!" message, mark todos 8-9 as N/A.

Phase 3: Installation (Conditional)

Todo 8: Install Missing Tools

Only execute if:

• User selected "Install missing"
• OR

  --install

  flag was passed (skip interactive gate)

Run installation commands for missing tools only:

/usr/bin/env bash << 'SETUP_EOF_2'
PLUGIN_DIR="${CLAUDE_PLUGIN_ROOT:-$HOME/.claude/plugins/marketplaces/cc-skills/plugins/itp}"
bash "$PLUGIN_DIR/scripts/install-dependencies.sh" --install
SETUP_EOF_2

If user selected "Skip":

• Display manual install commands
• Mark todo as skipped
• Exit cleanly

Todo 9: Verify Installation

Re-run checks to confirm tools are now available:

/usr/bin/env bash << 'PREFLIGHT_EOF'
PLUGIN_DIR="${CLAUDE_PLUGIN_ROOT:-$HOME/.claude/plugins/marketplaces/cc-skills/plugins/itp}"
bash "$PLUGIN_DIR/scripts/install-dependencies.sh" --check
PREFLIGHT_EOF

Mark todo completed only if verification passes.

Flag Handling

--check

--install

--yes

--install

Parse

$ARGUMENTS

case "$ARGUMENTS" in
  *--install*|*--yes*)
    SKIP_GATE=true
    ;;
  *)
    SKIP_GATE=false
    ;;
esac

Edge Cases

--install

Troubleshooting

graph-easy fails to install

# Ensure cpanminus is installed first
brew install cpanminus

# Then install Graph::Easy
cpanm Graph::Easy

semantic-release not found

# Install globally with npm
npm i -g semantic-release@25

# Or use npx (no global install needed)
npx semantic-release --version

Permission errors with npm

/usr/bin/env bash << 'CONFIG_EOF'
# Fix npm permissions
mkdir -p ~/.npm-global
npm config set prefix '~/.npm-global'

# Add to your shell config
SHELL_RC="$([[ "$SHELL" == */zsh ]] && echo ~/.zshrc || echo ~/.bashrc)"
echo 'export PATH=~/.npm-global/bin:$PATH' >> "$SHELL_RC"
source "$SHELL_RC"
CONFIG_EOF

Next Steps

After setup completes, configure itp-hooks for enhanced workflow guidance:

1. Check hook status:

   /itp:hooks status
   

2. Install hooks (if not already installed):

   /itp:hooks install
   

What hooks provide

• PreToolUse guard: Blocks Unicode box-drawing diagrams without

  <details>

  source blocks
• PostToolUse reminder: Prompts ADR sync and graph-easy skill usage

IMPORTANT: Hooks require a Claude Code session restart after installation.

Post-Execution Reflection

After this skill completes, reflect before closing the task:

0. Locate yourself. — Find this SKILL.md's canonical path (Glob for this skill's name) before editing. All corrections target THIS file and its sibling references/ — never other documentation.
1. What failed? — Fix the instruction that caused it. If it could recur, add it as an anti-pattern.
2. What worked better than expected? — Promote it to recommended practice. Document why.
3. What drifted? — Any script, reference, or external dependency that no longer matches reality gets fixed now.
4. Log it. — Every change gets an evolution-log entry with trigger, fix, and evidence.

Do NOT defer. The next invocation inherits whatever you leave behind.