feat(opencode): add --skills support to opencode integration

Adds opt-in `--skills` support to OpencodeIntegration, producing `speckit-<name>/SKILL.md` files under `.opencode/skills/` instead of flat `.md` files.
Opencode natively supports this format (https://opencode.ai/docs/skills/).

Activate via: `specify init --integration opencode --integration-options="--skills"`

Author: tinesoft

src/specify_cli/integrations/opencode/__init__.py

@@ -1,6 +1,12 @@
 """opencode integration."""
 
-from ..base import MarkdownIntegration
+from __future__ import annotations
+
+from pathlib import Path
+from typing import Any
+
+from ..base import IntegrationOption, MarkdownIntegration, SkillsIntegration
+from ..manifest import IntegrationManifest
 
 
 class OpencodeIntegration(MarkdownIntegration):
@@ -20,6 +26,83 @@ class OpencodeIntegration(MarkdownIntegration):
         "extension": ".md",
     }
     context_file = "AGENTS.md"
+    # Mutable flag set by setup() — indicates the active scaffolding mode.
+    _skills_mode: bool = False
+
+    @classmethod
+    def options(cls) -> list[IntegrationOption]:
+        return [
+            IntegrationOption(
+                "--skills",
+                is_flag=True,
+                default=False,
+                help="Scaffold commands as agent skills (speckit-<name>/SKILL.md) instead of .md files",
+            ),
+        ]
+
+    def effective_invoke_separator(
+        self, parsed_options: dict[str, Any] | None = None
+    ) -> str:
+        if parsed_options and parsed_options.get("skills"):
+            return "-"
+        if self._skills_mode:
+            return "-"
+        return self.invoke_separator  # default: "."
+
+    def build_command_invocation(self, command_name: str, args: str = "") -> str:
+        if not self._skills_mode:
+            return super().build_command_invocation(command_name, args)
+        stem = command_name
+        if stem.startswith("speckit."):
+            stem = stem[len("speckit."):]
+        invocation = "/speckit-" + stem.replace(".", "-")
+        if args:
+            invocation = f"{invocation} {args}"
+        return invocation
+
+    def dispatch_command(
+        self,
+        command_name: str,
+        args: str = "",
+        *,
+        project_root: Path | None = None,
+        model: str | None = None,
+        timeout: int = 600,
+        stream: bool = True,
+    ) -> dict[str, Any]:
+        if project_root:
+            skills_dir = project_root / ".opencode" / "skills"
+            self._skills_mode = skills_dir.is_dir() and any(
+                d.is_dir() and (d / "SKILL.md").is_file()
+                for d in skills_dir.glob("speckit-*")
+            )
+        return super().dispatch_command(
+            command_name, args,
+            project_root=project_root, model=model, timeout=timeout, stream=stream,
+        )
+
+    def setup(
+        self,
+        project_root: Path,
+        manifest: IntegrationManifest,
+        parsed_options: dict[str, Any] | None = None,
+        **opts: Any,
+    ) -> list[Path]:
+        parsed_options = parsed_options or {}
+        self._skills_mode = bool(parsed_options.get("skills"))
+        if self._skills_mode:
+            helper = SkillsIntegration()
+            helper.key = self.key
+            helper.config = {**self.config, "commands_subdir": "skills"}
+            helper.registrar_config = {
+                "dir": ".opencode/skills",
+                "format": "markdown",
+                "args": "$ARGUMENTS",
+                "extension": "/SKILL.md",
+            }
+            helper.context_file = self.context_file
+            return helper.setup(project_root, manifest, parsed_options, **opts)
+        return super().setup(project_root, manifest, parsed_options, **opts)
 
     def build_exec_args(
         self,

tests/integrations/test_integration_opencode.py

@@ -1,5 +1,9 @@
 """Tests for OpencodeIntegration."""
 
+import os
+
+import yaml
+
 import warnings
 
 from specify_cli.agents import CommandRegistrar
@@ -198,3 +202,178 @@ def test_setup_writes_to_canonical_dir(self, tmp_path):
         assert canonical.is_dir()
         assert not legacy.exists()
         assert any(canonical.glob("speckit.*.md"))
+
+
+class TestOpencodeSkillsMode:
+    KEY = "opencode"
+
+    def test_skills_option_declared(self):
+        integration = get_integration(self.KEY)
+        opts = integration.options()
+        names = [o.name for o in opts]
+        assert "--skills" in names
+        skills_opt = next(o for o in opts if o.name == "--skills")
+        assert skills_opt.is_flag is True
+        assert skills_opt.default is False
+
+    def test_skills_mode_creates_skill_md_files(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        created = integration.setup(tmp_path, manifest, parsed_options={"skills": True}, script_type="sh")
+
+        skill_files = [p for p in created if p.name == "SKILL.md"]
+        assert skill_files
+
+        skills_dir = tmp_path / ".opencode" / "skills"
+        assert skills_dir.is_dir()
+
+        specify_skill = skills_dir / "speckit-specify" / "SKILL.md"
+        assert specify_skill.exists()
+
+    def test_skills_mode_does_not_create_md_command_files(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest, parsed_options={"skills": True}, script_type="sh")
+
+        command_dir = tmp_path / ".opencode" / "commands"
+        md_files = list(command_dir.glob("*.md")) if command_dir.exists() else []
+        assert md_files == []
+
+    def test_skills_mode_frontmatter(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest, parsed_options={"skills": True}, script_type="sh")
+
+        skill_path = tmp_path / ".opencode" / "skills" / "speckit-plan" / "SKILL.md"
+        assert skill_path.exists()
+
+        content = skill_path.read_text(encoding="utf-8")
+        parts = content.split("---", 2)
+        parsed = yaml.safe_load(parts[1])
+
+        assert parsed["name"] == "speckit-plan"
+        assert "description" in parsed
+        assert "compatibility" in parsed
+        assert parsed["metadata"]["author"] == "github-spec-kit"
+
+    def test_default_mode_unchanged(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest, script_type="sh")
+
+        command_dir = tmp_path / ".opencode" / "commands"
+        assert command_dir.is_dir()
+        md_files = list(command_dir.glob("speckit.*.md"))
+        assert md_files
+
+    def test_effective_invoke_separator_skills_mode(self):
+        integration = get_integration(self.KEY)
+        assert integration.effective_invoke_separator({"skills": True}) == "-"
+
+    def test_effective_invoke_separator_default_mode(self):
+        integration = get_integration(self.KEY)
+        assert integration.effective_invoke_separator({}) == "."
+
+    def test_skills_mode_flag_set_on_instance(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest, parsed_options={"skills": True}, script_type="sh")
+        assert integration._skills_mode is True
+
+    def test_skills_mode_resets_on_default_setup(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest, parsed_options={"skills": True}, script_type="sh")
+        assert integration._skills_mode is True
+
+        manifest2 = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest2, script_type="sh")
+        assert integration._skills_mode is False
+
+    def test_init_cli_with_skills_option(self, tmp_path):
+        from typer.testing import CliRunner
+        from specify_cli import app
+
+        project = tmp_path / "opencode-skills"
+        project.mkdir()
+        old_cwd = os.getcwd()
+        try:
+            os.chdir(project)
+            result = CliRunner().invoke(app, [
+                "init", "--here", "--integration", "opencode",
+                "--integration-options", "--skills",
+                "--script", "sh", "--no-git", "--ignore-agent-tools",
+            ], catch_exceptions=False)
+        finally:
+            os.chdir(old_cwd)
+
+        assert result.exit_code == 0, f"init failed: {result.output}"
+        skills_dir = project / ".opencode" / "skills"
+        assert skills_dir.is_dir(), "Skills directory was not created"
+        plan_skill = skills_dir / "speckit-plan" / "SKILL.md"
+        assert plan_skill.exists(), "speckit-plan/SKILL.md not found"
+
+        import json
+        init_opts = json.loads((project / ".specify" / "init-options.json").read_text())
+        assert init_opts.get("ai_skills") is True
+
+        commands_dir = project / ".opencode" / "commands"
+        if commands_dir.exists():
+            assert not list(commands_dir.glob("*.md"))
+
+    def test_build_command_invocation_skills_mode(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest, parsed_options={"skills": True}, script_type="sh")
+
+        assert integration.build_command_invocation("speckit.plan", "add OAuth") == "/speckit-plan add OAuth"
+        assert integration.build_command_invocation("speckit.specify", "") == "/speckit-specify"
+
+    def test_build_command_invocation_default_mode(self, tmp_path):
+        integration = get_integration(self.KEY)
+        manifest = IntegrationManifest(self.KEY, tmp_path)
+        integration.setup(tmp_path, manifest, script_type="sh")
+        assert integration.build_command_invocation("speckit.plan", "add OAuth") == "/speckit.plan add OAuth"
+
+    def test_dispatch_command_resets_skills_mode_for_non_skills_project(self, tmp_path):
+        from unittest import mock
+
+        integration = get_integration(self.KEY)
+        # Manually set _skills_mode to True to simulate a prior dispatch
+        integration._skills_mode = True
+
+        # Create a project_root with no skills layout
+        project = tmp_path / "regular-project"
+        project.mkdir()
+        (project / ".opencode").mkdir()
+
+        # Mock subprocess.run to prevent actual CLI invocation
+        with mock.patch("subprocess.run"):
+            integration.dispatch_command(
+                "plan", "test args", project_root=project
+            )
+
+        # Should have reset _skills_mode to False since no skills dir exists
+        assert integration._skills_mode is False
+
+    def test_dispatch_command_detects_skills_project(self, tmp_path):
+        from unittest import mock
+
+        integration = get_integration(self.KEY)
+        # Start with _skills_mode = False
+        integration._skills_mode = False
+
+        # Create a skills-mode project layout
+        project = tmp_path / "skills-project"
+        skills_dir = project / ".opencode" / "skills" / "speckit-plan"
+        skills_dir.mkdir(parents=True)
+        (skills_dir / "SKILL.md").write_text("# skill", encoding="utf-8")
+
+        # Mock subprocess.run to prevent actual CLI invocation
+        with mock.patch("subprocess.run"):
+            integration.dispatch_command(
+                "plan", "test args", project_root=project
+            )
+
+        # Should have detected and set _skills_mode to True
+        assert integration._skills_mode is True