chore(meta): add ck3-tiger linting via Makefile

Adds static analysis for CK3 mod files using ck3-tiger. The Makefile
downloads the platform-specific binary and persists the CK3 game
directory path for validation runs.

Targets: make setup, make lint, make clean
Config: lords_of_ash/ck3-tiger.conf (English only, hide vanilla)
Commit skill updated with pre-commit lint step.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/skills/commit/SKILL.md

@@ -132,6 +132,13 @@ both files together as:
 chore(meta): release v1.1.0
 ```
 
+## Pre-commit Lint
+
+Before committing, run `make lint` to validate the mod with ck3-tiger. If the
+linter reports errors, fix them before committing. Warnings are acceptable but
+should be noted in the commit body if relevant. Skip this step if `make lint`
+is not set up (i.e., `make setup` has not been run).
+
 ## Staging Rules
 
 - Stage files by name — never use `git add -A` or `git add .`

.gitignore

@@ -0,0 +1,3 @@
+.env
+.lords-of-ash-local.mod
+tools/

Makefile

@@ -0,0 +1,71 @@
+.PHONY: setup lint clean help
+
+TIGER_VERSION := 1.15.0
+TIGER_BIN     := tools/ck3-tiger
+ENV_FILE      := .env
+LOCAL_MOD     := .lords-of-ash-local.mod
+
+-include $(ENV_FILE)
+
+# Detect platform for binary download
+UNAME_S := $(shell uname -s)
+UNAME_M := $(shell uname -m)
+ifeq ($(UNAME_S),Linux)
+    TIGER_ARCHIVE := ck3-tiger-linux-v$(TIGER_VERSION).tar.gz
+else ifeq ($(UNAME_S),Darwin)
+    TIGER_ARCHIVE :=
+else ifneq (,$(findstring MINGW,$(UNAME_S)))
+    TIGER_ARCHIVE := ck3-tiger-windows-v$(TIGER_VERSION).zip
+else ifneq (,$(findstring MSYS,$(UNAME_S)))
+    TIGER_ARCHIVE := ck3-tiger-windows-v$(TIGER_VERSION).zip
+else
+    TIGER_ARCHIVE :=
+endif
+
+TIGER_URL := https://github.com/amtep/tiger/releases/download/v$(TIGER_VERSION)/$(TIGER_ARCHIVE)
+
+help: ## Show available targets
+	@grep -E '^[a-zA-Z_-]+:.*##' $(MAKEFILE_LIST) | awk 'BEGIN {FS = ":.*##"}; {printf "  %-12s %s\n", $$1, $$2}'
+
+setup: ## Configure ck3-tiger (usage: make setup CK3_GAME_DIR=/path/to/ck3)
+ifndef CK3_GAME_DIR
+	$(error CK3_GAME_DIR is required. Usage: make setup CK3_GAME_DIR=/path/to/ck3)
+endif
+	@test -d "$(CK3_GAME_DIR)/game" || (echo "Error: $(CK3_GAME_DIR)/game not found. Is this the CK3 install directory?" && exit 1)
+	@echo 'CK3_GAME_DIR=$(CK3_GAME_DIR)' > $(ENV_FILE)
+	@sed 's|path="mod/lords_of_ash"|path="lords_of_ash"|' lords-of-ash.mod > $(LOCAL_MOD)
+ifeq ($(TIGER_ARCHIVE),)
+	@echo "Warning: no pre-built ck3-tiger binary for $(UNAME_S)/$(UNAME_M)."
+	@echo "Install manually: cargo install ck3-tiger"
+else
+	@if [ ! -x $(TIGER_BIN) ]; then \
+		echo "Downloading ck3-tiger v$(TIGER_VERSION) for $(UNAME_S)..."; \
+		mkdir -p tools; \
+		curl -fsSL "$(TIGER_URL)" -o "tools/$(TIGER_ARCHIVE)"; \
+		case "$(TIGER_ARCHIVE)" in \
+			*.tar.gz) tar -xzf "tools/$(TIGER_ARCHIVE)" -C tools;; \
+			*.zip)    unzip -qo "tools/$(TIGER_ARCHIVE)" -d tools;; \
+		esac; \
+		mv tools/ck3-tiger-*/ck3-tiger $(TIGER_BIN); \
+		rm -rf tools/ck3-tiger-*/ "tools/$(TIGER_ARCHIVE)"; \
+		echo "Installed $(TIGER_BIN)"; \
+	else \
+		echo "ck3-tiger already installed."; \
+	fi
+endif
+	@echo "Setup complete. Run 'make lint' to validate the mod."
+
+lint: ## Run ck3-tiger against the mod
+	@test -f $(ENV_FILE) || (echo "Run 'make setup CK3_GAME_DIR=/path/to/ck3' first." && exit 1)
+	@test -f $(LOCAL_MOD) || (echo "Run 'make setup CK3_GAME_DIR=/path/to/ck3' first." && exit 1)
+	@if [ -x $(TIGER_BIN) ]; then \
+		$(TIGER_BIN) --game "$(CK3_GAME_DIR)" $(LOCAL_MOD); \
+	elif command -v ck3-tiger >/dev/null 2>&1; then \
+		ck3-tiger --game "$(CK3_GAME_DIR)" $(LOCAL_MOD); \
+	else \
+		echo "ck3-tiger not found. Run 'make setup' or install via 'cargo install ck3-tiger'."; \
+		exit 1; \
+	fi
+
+clean: ## Remove generated local files and tools
+	rm -rf tools $(ENV_FILE) $(LOCAL_MOD)

lords_of_ash/ck3-tiger.conf

@@ -0,0 +1,8 @@
+languages = {
+	check = english
+}
+
+filter = {
+	show_vanilla = no
+	show_loaded_mods = no
+}