So this change does nothing else, which is the condition the work was deferred under across three separate handoffs. Every line from the class docblock to the final get_instance() call loses exactly one leading tab. Not a single character of code, comment or docblock text changes, no line is added or removed, and the only non-whitespace edit anywhere in the file is the version number in the header. A reviewer can confirm correctness by checking that the diff contains nothing but whitespace and that one line.

readme.txt moves its Stable tag and trimmed changelog forward to match, per standing rule 8. Plugin Check and PHPStan are both clean at 1.9.4 and are expected to stay clean; re-running them afterwards is the check that the dedent did not break the file in some way php -l would not catch.

Rule 2 is what it now follows: a one-paragraph description, installation steps, and links to the canonical documentation home and the changelog doc-section. The per-ability reference that used to live here is not lost – it was written into the Abilities doc-section, and the design reasoning into Architecture notes, both under the portfolio root, where they sit beside the automated changelog instead of drifting from it. That is the point of the convention: one place to update, which nobody has to remember to keep in sync, rather than three.

readme.txt moves its Stable tag to 1.9.4 and its trimmed changelog forward a version, per standing rule 8, since the tag must match the plugin header exactly or wordpress.org serves the wrong files. This is a documentation-only release: no PHP behaviour, no schema, no registration argument changes.