fix: resolve skill placeholders for all SKILL.md agents, not just codex/kimi (#2313)

* fix: resolve skill placeholders for all SKILL.md agents, not just codex/kimi

* chore: remove unused NATIVE_SKILLS_AGENTS constant

src/specify_cli/__init__.py

@@ -928,7 +928,6 @@ def _get_skills_dir(project_path: Path, selected_ai: str) -> Path:
 
 # Constants kept for backward compatibility with presets and extensions.
 DEFAULT_SKILLS_DIR = ".agents/skills"
-NATIVE_SKILLS_AGENTS = {"codex", "kimi"}
 SKILL_DESCRIPTIONS = {
     "specify": "Create or update feature specifications from natural language descriptions.",
     "plan": "Generate technical implementation plans from feature specifications.",

src/specify_cli/agents.py

@@ -282,7 +282,8 @@ class CommandRegistrar:
         if not isinstance(frontmatter, dict):
             frontmatter = {}
 
-        if agent_name in {"codex", "kimi"}:
+        agent_config = self.AGENT_CONFIGS.get(agent_name, {})
+        if agent_config.get("extension") == "/SKILL.md":
             body = self.resolve_skill_placeholders(
                 agent_name, frontmatter, body, project_root
             )