diff --git a/packages/omo-codex/plugin/components/comment-checker/test/fixtures/post-tool-use.json b/packages/omo-codex/plugin/components/comment-checker/test/fixtures/post-tool-use.json
new file mode 100644
index 000000000..b1d4c0901
--- /dev/null
+++ b/packages/omo-codex/plugin/components/comment-checker/test/fixtures/post-tool-use.json
@@ -0,0 +1,15 @@
+{
+	"session_id": "00000000-0000-0000-0000-000000000000",
+	"turn_id": "00000000-0000-0000-0000-000000000001",
+	"transcript_path": "/tmp/codex-comment-checker-transcript.jsonl",
+	"cwd": ".",
+	"hook_event_name": "PostToolUse",
+	"model": "gpt-5.5",
+	"permission_mode": "default",
+	"tool_name": "apply_patch",
+	"tool_input": {
+		"command": "*** Begin Patch\n*** Add File: src/example.ts\n+export const meaning = 42;\n*** End Patch\n"
+	},
+	"tool_response": "Success. Updated files.",
+	"tool_use_id": "toolu_000000000000000000000000"
+}
diff --git a/packages/omo-codex/plugin/components/lsp/hooks/hooks.json b/packages/omo-codex/plugin/components/lsp/hooks/hooks.json
new file mode 100644
index 000000000..2e8b75cb1
--- /dev/null
+++ b/packages/omo-codex/plugin/components/lsp/hooks/hooks.json
@@ -0,0 +1,17 @@
+{
+	"hooks": {
+		"PostToolUse": [
+			{
+				"matcher": "^(apply_patch|Write|Edit|MultiEdit|multi_edit|write|edit|multiedit)$",
+				"hooks": [
+					{
+						"type": "command",
+						"command": "node \"${PLUGIN_ROOT}/dist/cli.js\" hook post-tool-use",
+						"timeout": 60,
+						"statusMessage": "LazyCodex(0.2.0): Checking LSP Diagnostics"
+					}
+				]
+			}
+		]
+	}
+}
diff --git a/packages/omo-codex/plugin/components/lsp/skills/lsp/SKILL.md b/packages/omo-codex/plugin/components/lsp/skills/lsp/SKILL.md
new file mode 100644
index 000000000..36be06844
--- /dev/null
+++ b/packages/omo-codex/plugin/components/lsp/skills/lsp/SKILL.md
@@ -0,0 +1,35 @@
+---
+name: lsp
+description: Use when Codex needs language-server diagnostics, definitions, references, symbols, or rename safety checks in the current workspace.
+---
+
+# Codex LSP
+
+Call `lsp` MCP tools through the tool interface; `lsp.*`/`mcp__lsp__*` are tool-call names, not shell commands.
+
+## Tools
+
+- `lsp.status`: list configured, installed, missing, disabled, and active language servers.
+- `lsp.diagnostics`: check one file or directory for LSP diagnostics. Prefer `severity: "error"` after edits.
+- `lsp.goto_definition`: locate a symbol definition from file, line, and character.
+- `lsp.find_references`: find usages of a symbol across the workspace.
+- `lsp.symbols`: inspect document symbols or search workspace symbols.
+- `lsp.prepare_rename`: check whether a rename is valid at a position.
+- `lsp.rename`: apply a language-server workspace edit for a rename.
+
+## Config
+
+Project config lives at `.codex/lsp-client.json`; user config lives at `~/.codex/lsp-client.json`.
+
+```json
+{
+	"lsp": {
+		"typescript": {
+			"command": ["typescript-language-server", "--stdio"],
+			"extensions": [".ts", ".tsx", ".js", ".jsx"]
+		}
+	}
+}
+```
+
+Use `lsp.status` first when diagnostics report a missing language server.
diff --git a/packages/omo-codex/plugin/components/rules/.codex-plugin/plugin.json b/packages/omo-codex/plugin/components/rules/.codex-plugin/plugin.json
new file mode 100644
index 000000000..4c0a824f6
--- /dev/null
+++ b/packages/omo-codex/plugin/components/rules/.codex-plugin/plugin.json
@@ -0,0 +1,3 @@
+{
+	"hooks": "./hooks/hooks.json"
+}