Per-remote trust-tier store for the forthcoming /setup-gbrain skill.
Tiers are the D3 triad (read-write / read-only / deny), keyed by a
normalized remote URL so ssh-shorthand and https variants collapse to
the same entry. The file carries _schema_version: 2 (D2-eng); legacy
`allow` values from pre-D3 experiments auto-migrate to `read-write`
on first read, idempotent, with a one-shot log line.
Pure bash + jq to match the existing gstack-brain-* family. Atomic
writes via tmpfile + rename. Policy file mode 0600. Corrupt files
quarantine to .corrupt-<ts> and start fresh.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Garry Tan
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