Add tiered agent routing and migrate prompt logic tests

Author: cowwoc

client/claude-cli/src/main/java/io/github/cowwoc/cat/claude/engine/ClaudeSprtMetadataResolver.java

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2026 Gili Tzabari. All rights reserved.
+ *
+ * Licensed under the CAT Commercial License.
+ * See LICENSE.md in the project root for license terms.
+ */
+package io.github.cowwoc.cat.claude.engine;
+
+import io.github.cowwoc.cat.tool.skills.ModelIdResolver;
+import io.github.cowwoc.cat.tool.skills.SprtMetadataResolver;
+import tools.jackson.databind.JsonNode;
+
+import java.io.IOException;
+import java.nio.file.Path;
+
+import static io.github.cowwoc.requirements13.java.DefaultJavaValidators.requireThat;
+
+/**
+ * Resolves SPRT model/effort metadata for Claude.
+ */
+public final class ClaudeSprtMetadataResolver implements SprtMetadataResolver
+{
+  private static final String DEFAULT_TEST_MODEL = "haiku";
+  private static final String DEFAULT_TEST_EFFORT = "low";
+  private final String claudeCodeVersion;
+
+  /**
+   * Creates a new resolver.
+   *
+   * @param claudeCodeVersion Claude Code version used for model id resolution
+   */
+  public ClaudeSprtMetadataResolver(String claudeCodeVersion)
+  {
+    requireThat(claudeCodeVersion, "claudeCodeVersion").isNotBlank();
+    this.claudeCodeVersion = claudeCodeVersion;
+  }
+
+  @Override
+  public ResolvedConfig resolve(Path instructionPath, JsonNode frontmatter) throws IOException
+  {
+    requireThat(instructionPath, "instructionPath").isNotNull();
+    requireThat(frontmatter, "frontmatter").isNotNull();
+    String model = extractStringField(frontmatter, "model");
+    String effort = extractStringField(frontmatter, "effort");
+    String source = CONFIG_SOURCE_FRONTMATTER;
+    if (model.isBlank() && effort.isBlank())
+      source = CONFIG_SOURCE_DEFAULT;
+    if (model.isBlank())
+      model = DEFAULT_TEST_MODEL;
+    if (effort.isBlank())
+      effort = DEFAULT_TEST_EFFORT;
+    return new ResolvedConfig(ModelIdResolver.resolve(claudeCodeVersion, model), effort, source);
+  }
+
+  /**
+   * Extracts a string field from parsed YAML frontmatter.
+   *
+   * @param frontmatter parsed YAML frontmatter
+   * @param fieldName the field to extract
+   * @return the field value, or blank if absent
+   */
+  private static String extractStringField(JsonNode frontmatter, String fieldName)
+  {
+    JsonNode node = frontmatter.get(fieldName);
+    if (node == null || node.isNull() || node.isMissingNode())
+      return "";
+    return node.asString("");
+  }
+}

client/claude-cli/src/main/java/io/github/cowwoc/cat/claude/engine/ClaudeSprtRunner.java

@@ -8,6 +8,7 @@
 
 import io.github.cowwoc.cat.claude.tool.MainClaudeTool;
 import io.github.cowwoc.cat.tool.CliTool;
+import io.github.cowwoc.cat.tool.skills.ModelIdResolver;
 import io.github.cowwoc.cat.tool.skills.SprtRunner;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
@@ -35,7 +36,9 @@ public static void main(String[] args)
     {
       try
       {
-        SprtRunner.run(scope, args, System.out);
+        String claudeCodeVersion = ModelIdResolver.detectClaudeCodeVersionOrLatestMapping();
+        SprtRunner.run(scope, args, System.out,
+          new ClaudeSprtMetadataResolver(claudeCodeVersion));
       }
       catch (IllegalArgumentException | IOException | InterruptedException e)
       {