Treat all-zero assistant usage from providers that do not report token counts as unsupported usage instead of real zero usage. Estimate current input and output tokens from the transcript, mark the values as estimated in the status-line payload, and use estimated totals whenever the active provider lacks usage data so mixed-provider sessions do not show stale cumulative totals.
Preserve tiny nonzero context percentages in the status JSON and render them as ctx <1% in the built-in status line instead of rounding back to 0%. Update the /statusline setup schema and add focused regression coverage for normal reported usage, unsupported all-zero usage, stale-provider fallback avoidance, tiny percentage display, and context percentage rounding.
Validation run locally with Bun 1.3.13: bun run build, bun run smoke, bun run typecheck, bun run typecheck:type-tests, focused tests for tokens/context/BuiltinStatusLine, bun run check, bun run test:provider, bun run test:provider-recommendation, python -m pytest -q python/tests, and bun run security:pr-scan -- --base upstream/main.
Co-authored-by: jatmn <12479882+jatmn@users.noreply.github.com>
Xiang HanandGitHub
