Specification: Bundled screen rules for Muse and Antigravity

Created: 2026-10-10. Status: clarified.

Spec 033 scoped generic screen rules to a program and shipped five agents. Muse and Antigravity are two more of herdr's set whose rules fit the engine. Muse's launcher execs muse-bin-<version>, so its program name is never a fixed string: binaries needs a prefix form.

Acceptance

1. A binaries entry ending in * matches any program name starting with the text before it, both for screen-rule scoping and detection overlays. A * anywhere else, or a bare *, rejects the manifest.
2. signaltty bundles herdr's Muse rules (muse, muse-code, muse-cli, muse-bin-*) and Antigravity rules (agy, antigravity, antigravity-cli), Apache-2.0, attributed, ending in the idle fallback.
3. Fixtures, written from the screens herdr's manifests document, cover each rule and its near-misses; a real-PTY test classifies a muse-bin-<version> program.

Scope and clarification

herdr requires a digit after muse-bin-; the prefix form also accepts muse-bin- itself or muse-bin-x, which no real program uses. No unresolved requirements remain.