feat(skiff): replace opencode target with agents standard dir

- targets: cursor, claude, codex, agents (~/.agents/skills, .agents/skills)
- agents dir covers OMP native discovery; drop omp/opencode targets
- project-level agents/cursor/codex share .agents/skills via idempotent symlinks
- migrate local state: remove ~/.config/opencode/skills links, reinstall into ~/.agents/skills

skiff/README.md

@@ -58,7 +58,7 @@ skiff bootstrap
 | 命令 | 说明 |
 |------|------|
 | `skiff list [--source NAME]` | 列出所有来源或指定 source 中的 skill |
-| `skiff status [--target all\|cursor\|claude\|codex]` | 安装状态总览 |
+| `skiff status [--target all\|cursor\|claude\|codex\|agents]` | 安装状态总览 |
 
 ### 项目初始化
 
@@ -87,6 +87,7 @@ skiff bootstrap
 | cursor | `~/.cursor/skills/` |
 | claude | `~/.claude/skills/` |
 | codex | `~/.codex/skills/` |
+| agents | `~/.agents/skills/`（agents 标准目录，覆盖 OMP） |
 
 ### 预置 Catalog Source
 
@@ -171,6 +172,7 @@ skiff 不保存 token。可以使用 `company/code-review`，也可以使用
 | cursor | `<project>/.agents/skills/` |
 | claude | `<project>/.claude/skills/` |
 | codex | `<project>/.agents/skills/` |
+| agents | `<project>/.agents/skills/`（与 cursor/codex 共用路径，软链幂等） |
 
 ### 脚手架与健康检查
 

skiff/agents.py

@@ -9,8 +9,7 @@ AGENT_ALIASES: dict[str, str] = {
     "claude": "claude",
     "claude-code": "claude",
     "codex": "codex",
-    "opencode": "opencode",
-    "*": "*",
+    "agents": "agents",
 }
 
 AGENT_CHOICES = sorted({*ALL_TARGETS, *AGENT_ALIASES.keys()})

skiff/cli.py

@@ -1655,7 +1655,7 @@ def _add_common_flags(parser: argparse.ArgumentParser) -> None:
         nargs="+",
         action="append",
         metavar="AGENT",
-        help="目标 agent（cursor、claude、claude-code、codex、opencode、*）",
+        help="目标 agent（cursor、claude、claude-code、codex、agents、*）",
     )
     parser.add_argument(
         "-g",

skiff/paths.py

@@ -20,17 +20,19 @@ AGENT_GLOBAL: dict[str, Path] = {
     "cursor": HOME / ".cursor" / "skills",
     "claude": HOME / ".claude" / "skills",
     "codex": HOME / ".codex" / "skills",
-    "opencode": HOME / ".config" / "opencode" / "skills",
+    # agents 标准目录：OMP 原生 canonical（agents provider），cursor/codex 项目级同路径
+    "agents": HOME / ".agents" / "skills",
 }
 
 AGENT_PROJECT: dict[str, str] = {
     "cursor": ".agents/skills",
     "claude": ".claude/skills",
     "codex": ".agents/skills",
-    "opencode": ".opencode/skills",
+    # 与 cursor/codex 共用 .agents/skills；软链幂等，同路径只写一次
+    "agents": ".agents/skills",
 }
 
-ALL_TARGETS = ("cursor", "claude", "codex", "opencode")
+ALL_TARGETS = ("cursor", "claude", "codex", "agents")
 
 
 def resolve_targets(target: str | None) -> list[str]: