docs: add agent-compatible paths to skills documentation (#12067)

packages/web/src/content/docs/skills.mdx

@@ -17,15 +17,17 @@ OpenCode searches these locations:
 - Global config: `~/.config/opencode/skills/<name>/SKILL.md`
 - Project Claude-compatible: `.claude/skills/<name>/SKILL.md`
 - Global Claude-compatible: `~/.claude/skills/<name>/SKILL.md`
+- Project agent-compatible: `.agents/skills/<name>/SKILL.md`
+- Global agent-compatible: `~/.agents/skills/<name>/SKILL.md`
 
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 ## Understand discovery
 
 For project-local paths, OpenCode walks up from your current working directory until it reaches the git worktree.
-It loads any matching `skills/*/SKILL.md` in `.opencode/` and any matching `.claude/skills/*/SKILL.md` along the way.
+It loads any matching `skills/*/SKILL.md` in `.opencode/` and any matching `.claude/skills/*/SKILL.md` or `.agents/skills/*/SKILL.md` along the way.
 
-Global definitions are also loaded from `~/.config/opencode/skills/*/SKILL.md` and `~/.claude/skills/*/SKILL.md`.
+Global definitions are also loaded from `~/.config/opencode/skills/*/SKILL.md`, `~/.claude/skills/*/SKILL.md`, and `~/.agents/skills/*/SKILL.md`.
 
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