{
  "schema": "lazaret-ignored-workspace-contract-v1",
  "mechanism": "rootless-host-fuse-router",
  "route_classes": [
    "host",
    "isolated"
  ],
  "transition_contracts": [
    {
      "id": "qualified-host-to-isolated-rename",
      "operations": [
        "rename",
        "rename-noreplace"
      ],
      "result": "success",
      "mutation": "durable-host-to-isolated-migration",
      "copy": "host-to-isolated-only"
    },
    {
      "id": "cross-route-rename",
      "operations": [
        "rename",
        "rename-noreplace",
        "rename-exchange"
      ],
      "result": "EXDEV",
      "mutation": "none"
    },
    {
      "id": "rename-whiteout",
      "operations": [
        "rename-whiteout"
      ],
      "result": "EOPNOTSUPP",
      "mutation": "none"
    },
    {
      "id": "cross-route-hard-link",
      "operations": [
        "link"
      ],
      "result": "EXDEV",
      "mutation": "none"
    },
    {
      "id": "ignored-to-host-policy",
      "trigger": "next Domain initialization classifies an isolated path as host-backed",
      "new_lookups": "host-or-absent",
      "isolated_state": "deleted-before-readiness",
      "copy": "none"
    },
    {
      "id": "host-to-ignored-policy",
      "trigger": "next Domain initialization classifies a host-backed path as ignored",
      "new_lookups": "host-clone-or-absent",
      "host_state": "retained-unchanged",
      "isolated_state": "host-clone-replaces-stale-state",
      "copy": "host-to-isolated-only"
    },
    {
      "id": "isolated-to-tracked-guest-publication",
      "trigger": "guest index publication tracks an isolated-only path",
      "result": "EBUSY",
      "index_mutation": "none",
      "isolated_state": "retained-visible",
      "copy": "none"
    }
  ],
  "filesystem_operations": [
    {
      "operation": "lookup-getattr-readdir",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "not-applicable"
    },
    {
      "operation": "create-mkdir-open-read-write-truncate-fallocate-fsync",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "not-applicable"
    },
    {
      "operation": "unlink-rmdir",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "not-applicable"
    },
    {
      "operation": "rename",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "qualified-host-to-isolated-or-EXDEV"
    },
    {
      "operation": "rename-noreplace",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "qualified-host-to-isolated-or-EXDEV"
    },
    {
      "operation": "rename-exchange",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "EXDEV"
    },
    {
      "operation": "rename-whiteout",
      "host": "EOPNOTSUPP",
      "isolated": "EOPNOTSUPP",
      "cross_route": "EOPNOTSUPP"
    },
    {
      "operation": "hard-link",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "EXDEV"
    },
    {
      "operation": "symlink-readlink",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "virtual-path-resolution"
    },
    {
      "operation": "user-xattrs",
      "host": "backing-feature",
      "isolated": "backing-feature",
      "cross_route": "not-applicable"
    },
    {
      "operation": "posix-acls",
      "host": "backing-feature",
      "isolated": "backing-feature",
      "cross_route": "not-applicable"
    },
    {
      "operation": "sparse-seek-hole-data-punch-hole",
      "host": "backing-feature",
      "isolated": "backing-feature",
      "cross_route": "not-applicable"
    },
    {
      "operation": "copy-file-range",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "EXDEV"
    },
    {
      "operation": "utimens-nanoseconds",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "not-applicable"
    },
    {
      "operation": "mmap-shared-private",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "pinned-open-backing"
    },
    {
      "operation": "flock-posix-record-lock",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "pinned-open-backing"
    },
    {
      "operation": "fifo-unix-socket",
      "host": "supported",
      "isolated": "supported",
      "cross_route": "not-applicable"
    },
    {
      "operation": "character-block-device-create",
      "host": "EPERM",
      "isolated": "EPERM",
      "cross_route": "EPERM"
    }
  ],
  "git_compatibility": [
    {
      "operation": "status-diff",
      "support": "supported"
    },
    {
      "operation": "ordinary-add-reset-commit",
      "support": "supported-host-backed-paths"
    },
    {
      "operation": "checkout-restore",
      "support": "supported"
    },
    {
      "operation": "branch-reference-update",
      "support": "supported"
    },
    {
      "operation": "merge-rebase-stash",
      "support": "supported"
    },
    {
      "operation": "linked-worktree",
      "support": "supported"
    },
    {
      "operation": "nested-repository",
      "support": "supported"
    },
    {
      "operation": "force-add-isolated-only",
      "support": "EBUSY-before-index-publication"
    },
    {
      "operation": "host-config-write",
      "support": "EROFS"
    },
    {
      "operation": "default-hook-host-access",
      "support": "sandbox-transient-only"
    }
  ]
}