v2.18.0

[2.18.0] - 2026-07-08

Added

• describe_capabilities: task-oriented capability map for agents. Groups the ~150 flat tools into 16 domains (read·form-fill·author·edit·tables·styles·layout·toc-xref·pii·redline·exam·seal·generators·memo·verify·package) with intent + when-to-use + entry-point tools; domain= filters one group. A coverage drift-guard test asserts every registered tool is mapped (adding a tool without mapping it fails CI). Lets an external agent orient itself with one call instead of reading ~150 tool descriptions.