The agent knew 23 of the editor's commands. It could not point a Variables node at a variable, group nodes, edit ports, transitions, containers, colliders or the project settings. Stage 5a brings the catalog to 85 commands in five areas and keeps every answer short. - The catalog lists names and descriptions only. With a query (an area or command names) it adds the arguments. All schemas at once would pass the 60 000 character limit of one answer. - add_port points a Variables node at a variable. The port takes the variable's kind, and an unknown name is refused with the list of the ones that exist. - add_group and add_comment take nodes instead of coordinates. They follow the nodes after the arrange step, in the same undo step. - The rule for which list a port picks from moved into portChoices.ts. Inspector and agent now share it. - The frame of a group around nodes moved into annotationDrag.ts, so the button and the agent get the same frame. - list_assets returns the project settings. get_asset shows the content of placed containers with the ids overrides need. get_graph shows declared ports and frame colors. - A new node is placed at the height of its port, in the free spot whose links cross the fewest others. A source goes left of the node it feeds. Before, new nodes always went right of the rest. - Arrange breaks a tie in crossings by putting the flow on top, and exec links pull harder when a column is sorted. - A comment over a group keeps clear of the group's title bar. - The agent's instructions and lint_graph ask to look at crossings too and to call arrange_graph when there are more than needed. Left out on purpose: file assets (no upload), paste from the clipboard, internal wrapper commands and switching plugins on. Found on the way: - Variable commands on a Struct asset did not run through WithStructTypes. New fields did not reach variables of that type. - A query "variables" also matched set_variables_scope. A word that names an area now means only that area. Tests: - agent-catalog (new, 10), agent-edit, graph-arrange (3 new) and relay green. 11 bends of the code, all red. - e2e 71 on atx: 22/22, the new check sees port speed and a group around all 4 drawn nodes. - Live on a test project: a speed variable of 300 moved the player to x 150.03 in 0.5 s. A re-placed Variables node landed below Axis input with 4 crossings instead of 7. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>