chore: import upstream snapshot with attribution

skills/gws-docs-write/SKILL.md

@@ -0,0 +1,50 @@
+---
+name: gws-docs-write
+description: "Google Docs: Append text to a document."
+metadata:
+  version: 0.22.5
+  openclaw:
+    category: "productivity"
+    requires:
+      bins:
+        - gws
+    cliHelp: "gws docs +write --help"
+---
+
+# docs +write
+
+> **PREREQUISITE:** Read `../gws-shared/SKILL.md` for auth, global flags, and security rules. If missing, run `gws generate-skills` to create it.
+
+Append text to a document
+
+## Usage
+
+```bash
+gws docs +write --document <ID> --text <TEXT>
+```
+
+## Flags
+
+| Flag | Required | Default | Description |
+|------|----------|---------|-------------|
+| `--document` | ✓ | — | Document ID |
+| `--text` | ✓ | — | Text to append (plain text) |
+
+## Examples
+
+```bash
+gws docs +write --document DOC_ID --text 'Hello, world!'
+```
+
+## Tips
+
+- Text is inserted at the end of the document body.
+- For rich formatting, use the raw batchUpdate API instead.
+
+> [!CAUTION]
+> This is a **write** command — confirm with the user before executing.
+
+## See Also
+
+- [gws-shared](../gws-shared/SKILL.md) — Global flags and auth
+- [gws-docs](../gws-docs/SKILL.md) — All read and write google docs commands