Initialize ba

Initialize ba task tracking for this project.

Step 1: Check current state

• Check if .ba/ already exists - if so, tell user it's already initialized and show status
• Check if ba binary is available (command -v ba) - if yes, skip to Step 3

Step 2: Install ba binary

Detect available package managers:

• Homebrew: command -v brew
• Cargo: command -v cargo OR test -f ~/.cargo/bin/cargo

Offer installation based on what's available:

If Homebrew available (preferred for macOS):

brew install cloud-atlas-ai/ba/ba

If Cargo available:

cargo install ba
# or if cargo not in PATH:
~/.cargo/bin/cargo install ba

If neither available, offer to install a package manager:

• Install Homebrew (recommended for macOS):

  /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
  

  Then: brew install cloud-atlas-ai/ba/ba

• Install Rust (cross-platform):

  curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh
  

  Then restart shell and: cargo install ba

For local development (if user specifies a path):

cargo install --path /path/to/ba
# or: ~/.cargo/bin/cargo install --path /path/to/ba

Step 3: Initialize project

After ba binary is available, run:

ba init

This creates .ba/ directory with:

• config.json - Project config (version, ID prefix)
• issues.jsonl - Issue storage

Step 4: Update AGENTS.md

Check if AGENTS.md exists in the project root. If not, create it with:

# AGENTS.md

This file provides guidance to Claude Code when working with code in this repository.

## Project Overview

[Add project-specific overview here]

## ba Task Tracking

This project uses ba for task tracking. You have the `$ba` skill available in Codex mode.

**Core workflow:**
1. Check ready queue: `ba ready` - shows open, unblocked issues
2. Claim an issue: `ba claim <id> --session $SESSION_ID`
3. Work on the issue
4. Complete: `ba finish <id>`
5. Or release: `ba release <id>` if not done

**Quick reference:**
- `ba list` - Show all open issues (excludes closed)
- `ba list --all` - Include closed issues
- `ba show <id>` - Show issue details
- `ba mine --session $SESSION_ID` - Show your claimed issues
- `ba create "title" -t task -p 1` - Create new issue
- `ba comment <id> "message"` - Add comment

**Ownership-based state machine:**
- `open` → claim → `in_progress` (you own it)
- `in_progress` → finish → `closed`
- `in_progress` → release → `open` (back to pool)
- Claiming a closed issue reopens it automatically

**Issue types:** task, epic, refactor, spike
**Priorities:** 0 (critical) to 4 (backlog), default 2

See README.md for full details.

If AGENTS.md already exists, append the ba section:

# Quoted heredoc prevents $SESSION_ID expansion in AGENTS.md
cat >> AGENTS.md << 'EOF'

## ba Task Tracking

This project uses ba for task tracking. You have the `$ba` skill available in Codex mode.

**Core workflow:**
1. Check ready queue: `ba ready` - shows open, unblocked issues
2. Claim an issue: `ba claim <id> --session $SESSION_ID`
3. Work on the issue
4. Complete: `ba finish <id>`
5. Or release: `ba release <id>` if not done

**Quick reference:**
- `ba list` - Show all open issues (excludes closed)
- `ba list --all` - Include closed issues
- `ba show <id>` - Show issue details
- `ba mine --session $SESSION_ID` - Show your claimed issues
- `ba create "title" -t task -p 1` - Create new issue
- `ba comment <id> "message"` - Add comment

**Ownership-based state machine:**
- `open` → claim → `in_progress` (you own it)
- `in_progress` → finish → `closed`
- `in_progress` → release → `open` (back to pool)
- Claiming a closed issue reopens it automatically

**Issue types:** task, epic, refactor, spike
**Priorities:** 0 (critical) to 4 (backlog), default 2

See README.md for full details.
EOF

Step 5: Install Codex skill

Install the $ba Codex skill files to enable ba commands in Claude Code sessions:

# Create skill directory
SKILL_DIR="$HOME/.codex/skills/ba"
mkdir -p "$SKILL_DIR"

# TODO: Change branch to 'master' before merging PR
# Currently using feature/ba-plugin for pre-merge testing
echo "Installing ba Codex skill..."
if curl -fsSL -o "$SKILL_DIR/SKILL.md" \
  "https://raw.githubusercontent.com/cloud-atlas-ai/ba/feature/ba-plugin/codex-skill/SKILL.md" && \
   curl -fsSL -o "$SKILL_DIR/AGENTS.md.snippet" \
  "https://raw.githubusercontent.com/cloud-atlas-ai/ba/feature/ba-plugin/codex-skill/AGENTS.md.snippet"; then
  echo "✓ Codex skill installed to $SKILL_DIR"
  echo ""
  echo "The \$ba skill is now available for:"
  echo "  \$ba ready    - Show available issues"
  echo "  \$ba claim    - Claim an issue"
  echo "  \$ba mine     - Show your claimed issues"
  echo "  \$ba finish   - Complete an issue"
else
  echo "⚠️  Failed to download Codex skill files"
  echo "You can manually install from: https://github.com/cloud-atlas-ai/ba/tree/feature/ba-plugin/codex-skill"
fi

Step 6: Verify SESSION_ID

Check if SESSION_ID is available for ownership operations:

if [ -z "$SESSION_ID" ]; then
  echo ""
  echo "⚠️  SESSION_ID not set"
  echo "Claude Code provides this automatically in active sessions."
  echo "To set manually: export SESSION_ID=\$(uuidgen | tr '[:upper:]' '[:lower:]')"
else
  echo ""
  echo "✓ SESSION_ID is set: $SESSION_ID"
fi

Step 7: Confirm

Tell user:

✓ ba initialized and ready

Created .ba/ directory with project config
Installed $ba Codex skill to ~/.codex/skills/ba/
Added ba guidance to AGENTS.md

Quick start:
  ba create "Your first task" -t task
  ba list
  ba claim <id> --session $SESSION_ID

Use $ba commands in Codex mode:
  $ba ready, $ba claim <id>, $ba finish <id>

---

Be concise. Detect what's available, offer appropriate options, guide user through setup.