Blockly: Graph

Where in the UI. Scripts tab toolbox.

Item graph edges, wire style, peer ids.

Block id	Read as	Purpose
`containd_list_outgoing_item_refs`	list outgoing item refs	number[] of original items this item wires TO, including edges stored on any of its placeholders (needs read.graph). Use 0 for bound item. Loop and plug ids into ContaindData “… on item”. Prefer this over wires-of-item when you need data, not style.
`containd_list_incoming_item_refs`	list incoming item refs	number[] of original items that wire INTO this item or any of its placeholders (needs read.graph). Use 0 for bound item. Originals only (placeholder seats resolve to originals).
`containd_list_graph_edges`	list graph edges	List graph wires for styling (not neighbor id lists), including wires owned by placeholder seats. Use 0 for the bound item. Loop with wire at index → set color / peer item id. For ContaindData on neighbors, prefer outgoing/incoming graph item ids instead.
`containd_wire_list_length`	wire list length	How many wires are in a wires-of-item list. Prefer last wire index as the “to” value in a count-with loop (inclusive).
`containd_wire_list_last_index`	wire list last index	Last valid index in a wires list (0 when empty). Plug into count-with “to” (from 0, by 1) then wire at index.
`containd_wire_at_index`	wire at index	Opaque wire value from a wires list (null if missing). Feed into set wire … / peer item id / wire color blocks — not into ContaindData directly.
`containd_wire_peer_item_id`	wire peer item id	Numeric id of the other end of this wire (0 if unknown). Plug into ContaindData “… on item” sockets, or use outgoing/incoming graph item ids for neighbor walks.
`containd_wire_goes_out`	wire goes out	True when the listed item is the source (outgoing) end of the wire; false when it is the target (incoming).
`containd_wire_color`	wire color	Current wire color string; empty when unset. Pair with wire style is unset before first write.
`containd_wire_thickness`	wire thickness	Current stroke width; 0 when unset.
`containd_wire_dash`	wire dash	Dash pattern (solid / dashed / dotted); empty when unset.
`containd_wire_start_cap`	wire start cap	Cap decoration at the source end; empty when unset.
`containd_wire_end_cap`	wire end cap	Cap decoration at the target end; empty when unset.
`containd_wire_style_is_unset`	wire style is unset	True when the wire has no style yet. Gate set-wire blocks on create so you style once without overwriting later user edits.
`containd_set_wire_color`	set wire color	Merge color onto this wire (needs write.graph). Does not change the peer item — use for appearance only.
`containd_set_wire_thickness`	set wire thickness	Merge stroke width onto this wire (needs write.graph).
`containd_set_wire_dash`	set wire dash	Merge dash pattern onto this wire (needs write.graph).
`containd_set_wire_start_cap`	set wire start cap	Merge source-end cap onto this wire (needs write.graph).
`containd_set_wire_end_cap`	set wire end cap	Merge target-end cap onto this wire (needs write.graph).
`containd_wire_style_patch`	wire style patch	Build a partial style patch. Leave fields “unchanged” to skip them. Apply with apply style patch to wire.
`containd_apply_wire_style_patch`	apply wire style patch	Apply a wire-style patch to one wire (needs write.graph). Empty / all-unchanged patches are no-ops.