Build card describes the build tool in general, not the selected piece

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

docs/agent-log.md

@@ -4,6 +4,18 @@ What agents have done, newest first. Add an entry for every piece of work: the d
 note or request it was for, what changed, the files touched, the tests run, and anything left
 open or not verified. Keep each entry short; the git history has the details.
 
+## 2026-10-23: the build card describes the build tool, not the piece (Claude Code)
+
+Note: "instead of the current info box for the build tool showing the current building selected,
+it should just show a description about the build tool in general." The owner kept the R/F chips.
+
+- `src/ui/selection.js`: the build card reads "Build", then the R/F chips, Replace · G and
+  ghosts, a line on placing, the build keys and the status line. No piece name or cost.
+- `test/play.py`: the card shows "Build" and the placing text, not the piece's name, cost or
+  description; the other card checks are unchanged. `play.py` and all 11 headless suites pass.
+- Shots: `shots/build-card-general-{pixel,smooth}.png`. `docs/DESIGN.md`.
+- Open: nothing.
+
 ## 2026-10-23: world sounds are heard around the bot, not the view (Claude Code)
 
 Note: "the sound effect is still heard when the player's zoom level is farther out… sounds