feat: Add skills feature for tool and chat calling (#351)

sources/skills/SkillsLoader.hpp

@@ -0,0 +1,36 @@
+// Copyright (C) 2026 Petr Mironychev
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#include <QString>
+#include <QStringList>
+#include <QVector>
+
+#include "AgentSkill.hpp"
+
+namespace QodeAssist::Skills {
+
+class SkillsLoader
+{
+public:
+    struct ParseResult
+    {
+        AgentSkill skill;
+        bool valid = false;
+        QString error;
+    };
+
+    static QVector<AgentSkill> scan(const QStringList &rootPaths);
+
+    static ParseResult parseSkillFile(const QString &skillDir, const QString &rootPath);
+
+    static int maxBodyChars();
+
+private:
+    static bool parseFrontmatter(
+        const QString &text, AgentSkill &skill, QString &body, QString &error);
+    static bool validateName(const QString &name, const QString &dirName, QString &error);
+};
+
+} // namespace QodeAssist::Skills