Hash-based IDs

bd-a1b2c3    # Short hash
bd-f14c      # Even shorter
bd-a3f8e9.1  # Hierarchical (child of bd-a3f8e9)

# Create issue - ID assigned automatically
bd create "Fix authentication bug"
# Returns: bd-7x2f

# The ID is deterministic for same content+timestamp

# Parent epic
bd create "Auth System" -t epic
# Returns: bd-a3f8e9

# Children auto-increment
bd create "Design UI" --parent bd-a3f8e9    # bd-a3f8e9.1
bd create "Backend" --parent bd-a3f8e9      # bd-a3f8e9.2
bd create "Tests" --parent bd-a3f8e9        # bd-a3f8e9.3

# Set prefix (default: bd)
bd config set id.prefix myproject

# Set hash length (default: 4)
bd config set id.hash_length 6

# New issues use new format
bd create "Test"
# Returns: myproject-a1b2c3

# Check for collisions
bd info --schema --json | jq '.collision_count'

# Partial ID matching
bd show a1b2     # Finds bd-a1b2...
bd show auth     # Fuzzy match by title

# Full ID required for ambiguous cases
bd show bd-a1b2c3d4

# List with full IDs
bd list --full-ids

# Bootstrap from a JSONL export (preserves original IDs in metadata)
bd init --from-jsonl old-issues.jsonl

# View original ID
bd show bd-new --json | jq '.original_id'