Cletus plugin kit: rules for coding agents, specification, host API, style guide, worker SDK and cletus-plugin tool

sdk/cmd/cletus-plugin/template/docs/guide.md.tmpl

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+# [[.Title]]
+
+Ask Cletus to count the lines in a file, or to save a summary of it.
+
+- "How many lines are in report.txt?"
+- "Save a line-count summary next to report.txt."
+
+Saving needs Cletus to allow edits in the folder.