Function writeSkillVersion

internal/app/skill.go:44–53

writeSkillVersion records `v` as the version of the binary that installed the current skill content. Errors are non-fatal — failing to write the sidecar should never block a successful skill install.

(v string)

// injects a tiny drift/close-out anchor; unbound sessions no-op. Stable
// — changing it would orphan existing installations.
const userPromptSubmitHookCommand = "flow hook user-prompt-submit"

// readSkillVersion returns the version string recorded in the
// harness's skill-version sidecar, or "" if missing/unreadable.
func readSkillVersion() string {
	p, err := defaultHarness().SkillVersionPath()
	if err != nil {
		return ""
	}
	b, err := os.ReadFile(p)
	if err != nil {
		return ""
	}