diff --git a/test-programs/wasi-tests/src/bin/directory_seek.rs b/test-programs/wasi-tests/src/bin/directory_seek.rs
index 85b96e6a..dc4fd52f 100644
--- a/test-programs/wasi-tests/src/bin/directory_seek.rs
+++ b/test-programs/wasi-tests/src/bin/directory_seek.rs
@@ -6,16 +6,8 @@ unsafe fn test_directory_seek(dir_fd: wasi::Fd) {
     wasi::path_create_directory(dir_fd, "dir").expect("failed to make directory");
 
     // Open the directory and attempt to request rights for seeking.
-    let fd = wasi::path_open(
-        dir_fd,
-        0,
-        "dir",
-        wasi::OFLAGS_DIRECTORY,
-        wasi::RIGHTS_FD_SEEK,
-        0,
-        0,
-    )
-    .expect("failed to open file");
+    let fd = wasi::path_open(dir_fd, 0, "dir", wasi::OFLAGS_DIRECTORY, 0, 0, 0)
+        .expect("failed to open file");
     assert!(
         fd > libc::STDERR_FILENO as wasi::Fd,
         "file descriptor range check",
@@ -27,19 +19,6 @@ unsafe fn test_directory_seek(dir_fd: wasi::Fd) {
         wasi::ERRNO_BADF
     );
 
-    // Check if we obtained the right to seek.
-    let fdstat = wasi::fd_fdstat_get(fd).expect("failed to fdstat");
-    assert_eq!(
-        fdstat.fs_filetype,
-        wasi::FILETYPE_DIRECTORY,
-        "expected the scratch directory to be a directory",
-    );
-    assert_eq!(
-        (fdstat.fs_rights_base & wasi::RIGHTS_FD_SEEK),
-        0,
-        "directory does NOT have the seek right",
-    );
-
     // Clean up.
     wasi::fd_close(fd).expect("failed to close fd");
     wasi::path_remove_directory(dir_fd, "dir").expect("failed to remove dir");
diff --git a/test-programs/wasi-tests/src/bin/fd_advise.rs b/test-programs/wasi-tests/src/bin/fd_advise.rs
index d6c37ae7..78a048db 100644
--- a/test-programs/wasi-tests/src/bin/fd_advise.rs
+++ b/test-programs/wasi-tests/src/bin/fd_advise.rs
@@ -8,12 +8,7 @@ unsafe fn test_fd_advise(dir_fd: wasi::Fd) {
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ
-            | wasi::RIGHTS_FD_WRITE
-            | wasi::RIGHTS_FD_ADVISE
-            | wasi::RIGHTS_FD_FILESTAT_GET
-            | wasi::RIGHTS_FD_FILESTAT_SET_SIZE
-            | wasi::RIGHTS_FD_ALLOCATE,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )
diff --git a/test-programs/wasi-tests/src/bin/fd_filestat_set.rs b/test-programs/wasi-tests/src/bin/fd_filestat_set.rs
index 424831b3..de358dff 100644
--- a/test-programs/wasi-tests/src/bin/fd_filestat_set.rs
+++ b/test-programs/wasi-tests/src/bin/fd_filestat_set.rs
@@ -8,11 +8,7 @@ unsafe fn test_fd_filestat_set(dir_fd: wasi::Fd) {
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ
-            | wasi::RIGHTS_FD_WRITE
-            | wasi::RIGHTS_FD_FILESTAT_GET
-            | wasi::RIGHTS_FD_FILESTAT_SET_SIZE
-            | wasi::RIGHTS_FD_FILESTAT_SET_TIMES,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )
diff --git a/test-programs/wasi-tests/src/bin/fd_flags_set.rs b/test-programs/wasi-tests/src/bin/fd_flags_set.rs
index cd55c3da..85864547 100644
--- a/test-programs/wasi-tests/src/bin/fd_flags_set.rs
+++ b/test-programs/wasi-tests/src/bin/fd_flags_set.rs
@@ -10,11 +10,7 @@ unsafe fn test_fd_fdstat_set_flags(dir_fd: wasi::Fd) {
         0,
         FILE_NAME,
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ
-            | wasi::RIGHTS_FD_WRITE
-            | wasi::RIGHTS_FD_SEEK
-            | wasi::RIGHTS_FD_TELL
-            | wasi::RIGHTS_FD_FDSTAT_SET_FLAGS,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         wasi::FDFLAGS_APPEND,
     )
diff --git a/test-programs/wasi-tests/src/bin/fd_readdir.rs b/test-programs/wasi-tests/src/bin/fd_readdir.rs
index 87aa112c..f7c5388f 100644
--- a/test-programs/wasi-tests/src/bin/fd_readdir.rs
+++ b/test-programs/wasi-tests/src/bin/fd_readdir.rs
@@ -98,10 +98,7 @@ unsafe fn test_fd_readdir(dir_fd: wasi::Fd) {
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ
-            | wasi::RIGHTS_FD_WRITE
-            | wasi::RIGHTS_FD_READDIR
-            | wasi::RIGHTS_FD_FILESTAT_GET,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )
@@ -155,10 +152,7 @@ unsafe fn test_fd_readdir_lots(dir_fd: wasi::Fd) {
             0,
             &format!("file.{}", count),
             wasi::OFLAGS_CREAT,
-            wasi::RIGHTS_FD_READ
-                | wasi::RIGHTS_FD_WRITE
-                | wasi::RIGHTS_FD_READDIR
-                | wasi::RIGHTS_FD_FILESTAT_GET,
+            wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
             0,
             0,
         )
diff --git a/test-programs/wasi-tests/src/bin/file_allocate.rs b/test-programs/wasi-tests/src/bin/file_allocate.rs
index 9008002e..d7a6dd57 100644
--- a/test-programs/wasi-tests/src/bin/file_allocate.rs
+++ b/test-programs/wasi-tests/src/bin/file_allocate.rs
@@ -8,10 +8,7 @@ unsafe fn test_file_allocate(dir_fd: wasi::Fd) {
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ
-            | wasi::RIGHTS_FD_WRITE
-            | wasi::RIGHTS_FD_ALLOCATE
-            | wasi::RIGHTS_FD_FILESTAT_GET,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )
diff --git a/test-programs/wasi-tests/src/bin/file_pread_pwrite.rs b/test-programs/wasi-tests/src/bin/file_pread_pwrite.rs
index 9df32f3c..918fec84 100644
--- a/test-programs/wasi-tests/src/bin/file_pread_pwrite.rs
+++ b/test-programs/wasi-tests/src/bin/file_pread_pwrite.rs
@@ -9,7 +9,7 @@ unsafe fn test_file_pread_pwrite(dir_fd: wasi::Fd) {
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_SEEK | wasi::RIGHTS_FD_WRITE,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )
diff --git a/test-programs/wasi-tests/src/bin/file_seek_tell.rs b/test-programs/wasi-tests/src/bin/file_seek_tell.rs
index a3d3711b..a54fe14a 100644
--- a/test-programs/wasi-tests/src/bin/file_seek_tell.rs
+++ b/test-programs/wasi-tests/src/bin/file_seek_tell.rs
@@ -8,7 +8,7 @@ unsafe fn test_file_seek_tell(dir_fd: wasi::Fd) {
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE | wasi::RIGHTS_FD_SEEK | wasi::RIGHTS_FD_TELL,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )
diff --git a/test-programs/wasi-tests/src/bin/overwrite_preopen.rs b/test-programs/wasi-tests/src/bin/overwrite_preopen.rs
index 0721d18a..7b509c50 100644
--- a/test-programs/wasi-tests/src/bin/overwrite_preopen.rs
+++ b/test-programs/wasi-tests/src/bin/overwrite_preopen.rs
@@ -9,7 +9,8 @@ unsafe fn test_overwrite_preopen(dir_fd: wasi::Fd) {
     let old_dir_filestat = wasi::fd_filestat_get(dir_fd).expect("failed fd_filestat_get");
 
     // Try to renumber over a preopened directory handle.
-    wasi::fd_renumber(dir_fd, pre_fd).expect("renumbering over a preopened file descriptor");
+    wasi::fd_renumber(dir_fd, pre_fd)
+            .expect("renumbering over a preopened file descriptor");
 
     // Ensure that pre_fd is still open.
     let new_dir_filestat = wasi::fd_filestat_get(pre_fd).expect("failed fd_filestat_get");
diff --git a/test-programs/wasi-tests/src/bin/path_filestat.rs b/test-programs/wasi-tests/src/bin/path_filestat.rs
index 2b1629e4..2c4b63a9 100644
--- a/test-programs/wasi-tests/src/bin/path_filestat.rs
+++ b/test-programs/wasi-tests/src/bin/path_filestat.rs
@@ -2,13 +2,6 @@ use std::{env, process};
 use wasi_tests::{assert_errno, open_scratch_directory, TESTCONFIG};
 
 unsafe fn test_path_filestat(dir_fd: wasi::Fd) {
-    let mut fdstat = wasi::fd_fdstat_get(dir_fd).expect("fd_fdstat_get");
-    assert_ne!(
-        fdstat.fs_rights_base & wasi::RIGHTS_PATH_FILESTAT_GET,
-        0,
-        "the scratch directory should have RIGHT_PATH_FILESTAT_GET as base right",
-    );
-
     let fdflags = if TESTCONFIG.support_fdflags_sync() {
         wasi::FDFLAGS_APPEND | wasi::FDFLAGS_SYNC
     } else {
@@ -21,7 +14,7 @@ unsafe fn test_path_filestat(dir_fd: wasi::Fd) {
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE | wasi::RIGHTS_PATH_FILESTAT_GET,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         // Pass some flags for later retrieval
         fdflags,
@@ -32,17 +25,7 @@ unsafe fn test_path_filestat(dir_fd: wasi::Fd) {
         "file descriptor range check",
     );
 
-    fdstat = wasi::fd_fdstat_get(file_fd).expect("fd_fdstat_get");
-    assert_eq!(
-        fdstat.fs_rights_base & wasi::RIGHTS_PATH_FILESTAT_GET,
-        0,
-        "files shouldn't have rights for path_* syscalls even if manually given",
-    );
-    assert_eq!(
-        fdstat.fs_rights_inheriting & wasi::RIGHTS_PATH_FILESTAT_GET,
-        0,
-        "files shouldn't have rights for path_* syscalls even if manually given",
-    );
+    let fdstat = wasi::fd_fdstat_get(file_fd).expect("fd_fdstat_get");
     assert_eq!(
         fdstat.fs_flags & wasi::FDFLAGS_APPEND,
         wasi::FDFLAGS_APPEND,
@@ -63,7 +46,7 @@ unsafe fn test_path_filestat(dir_fd: wasi::Fd) {
                 0,
                 "file",
                 0,
-                wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE | wasi::RIGHTS_PATH_FILESTAT_GET,
+                wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
                 0,
                 wasi::FDFLAGS_SYNC,
             )
diff --git a/test-programs/wasi-tests/src/bin/path_link.rs b/test-programs/wasi-tests/src/bin/path_link.rs
index 1216c334..161d865d 100644
--- a/test-programs/wasi-tests/src/bin/path_link.rs
+++ b/test-programs/wasi-tests/src/bin/path_link.rs
@@ -1,15 +1,8 @@
 use std::{env, process};
 use wasi_tests::{assert_errno, create_file, open_scratch_directory, TESTCONFIG};
 
-const TEST_RIGHTS: wasi::Rights = wasi::RIGHTS_FD_READ
-    | wasi::RIGHTS_PATH_LINK_SOURCE
-    | wasi::RIGHTS_PATH_LINK_TARGET
-    | wasi::RIGHTS_FD_FILESTAT_GET
-    | wasi::RIGHTS_PATH_OPEN
-    | wasi::RIGHTS_PATH_UNLINK_FILE;
-
 unsafe fn create_or_open(dir_fd: wasi::Fd, name: &str, flags: wasi::Oflags) -> wasi::Fd {
-    let file_fd = wasi::path_open(dir_fd, 0, name, flags, TEST_RIGHTS, TEST_RIGHTS, 0)
+    let file_fd = wasi::path_open(dir_fd, 0, name, flags, 0, 0, 0)
         .unwrap_or_else(|_| panic!("opening '{}'", name));
     assert!(
         file_fd > libc::STDERR_FILENO as wasi::Fd,
@@ -19,7 +12,7 @@ unsafe fn create_or_open(dir_fd: wasi::Fd, name: &str, flags: wasi::Oflags) -> w
 }
 
 unsafe fn open_link(dir_fd: wasi::Fd, name: &str) -> wasi::Fd {
-    let file_fd = wasi::path_open(dir_fd, 0, name, 0, TEST_RIGHTS, TEST_RIGHTS, 0)
+    let file_fd = wasi::path_open(dir_fd, 0, name, 0, 0, 0, 0)
         .unwrap_or_else(|_| panic!("opening a link '{}'", name));
     assert!(
         file_fd > libc::STDERR_FILENO as wasi::Fd,
@@ -91,9 +84,9 @@ unsafe fn test_path_link(dir_fd: wasi::Fd) {
     wasi::path_link(dir_fd, 0, "file", subdir_fd, "link").expect("creating a link in subdirectory");
     let link_fd = open_link(subdir_fd, "link");
     check_rights(file_fd, link_fd);
+    wasi::fd_close(link_fd).expect("Closing link_fd"); // needed for Windows
     wasi::path_unlink_file(subdir_fd, "link").expect("removing a link");
     wasi::fd_close(subdir_fd).expect("Closing subdir_fd"); // needed for Windows
-    wasi::fd_close(link_fd).expect("Closing link_fd"); // needed for Windows
     wasi::path_remove_directory(dir_fd, "subdir").expect("removing a subdirectory");
 
     // Create a link to a path that already exists
diff --git a/test-programs/wasi-tests/src/bin/poll_oneoff_files.rs b/test-programs/wasi-tests/src/bin/poll_oneoff_files.rs
index cbf98031..03539ea3 100644
--- a/test-programs/wasi-tests/src/bin/poll_oneoff_files.rs
+++ b/test-programs/wasi-tests/src/bin/poll_oneoff_files.rs
@@ -197,16 +197,8 @@ unsafe fn test_fd_readwrite_valid_fd(dir_fd: wasi::Fd) {
     wasi::fd_close(nonempty_file).expect("close");
 
     // Now open the file for reading
-    let readable_fd = wasi::path_open(
-        dir_fd,
-        0,
-        "readable_file",
-        0,
-        wasi::RIGHTS_FD_READ | wasi::RIGHTS_POLL_FD_READWRITE,
-        0,
-        0,
-    )
-    .expect("opening a readable file");
+    let readable_fd = wasi::path_open(dir_fd, 0, "readable_file", 0, wasi::RIGHTS_FD_READ, 0, 0)
+        .expect("opening a readable file");
 
     assert!(
         readable_fd > libc::STDERR_FILENO as wasi::Fd,
@@ -218,7 +210,7 @@ unsafe fn test_fd_readwrite_valid_fd(dir_fd: wasi::Fd) {
         0,
         "writable_file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_WRITE | wasi::RIGHTS_POLL_FD_READWRITE,
+        wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )
@@ -231,6 +223,7 @@ unsafe fn test_fd_readwrite_valid_fd(dir_fd: wasi::Fd) {
     test_fd_readwrite(readable_fd, writable_fd, wasi::ERRNO_SUCCESS);
 
     wasi::fd_close(readable_fd).expect("closing readable_file");
+    wasi::fd_close(writable_fd).expect("closing writable_file");
     wasi::path_unlink_file(dir_fd, "readable_file").expect("removing readable_file");
     wasi::path_unlink_file(dir_fd, "writable_file").expect("removing writable_file");
 }
diff --git a/test-programs/wasi-tests/src/bin/readlink.rs b/test-programs/wasi-tests/src/bin/readlink.rs
index f085ef26..61564724 100644
--- a/test-programs/wasi-tests/src/bin/readlink.rs
+++ b/test-programs/wasi-tests/src/bin/readlink.rs
@@ -1,5 +1,5 @@
 use std::{env, process};
-use wasi_tests::{create_file, open_scratch_directory};
+use wasi_tests::{assert_errno, create_file, open_scratch_directory};
 
 unsafe fn test_readlink(dir_fd: wasi::Fd) {
     // Create a file in the scratch directory.
@@ -21,8 +21,6 @@ unsafe fn test_readlink(dir_fd: wasi::Fd) {
     );
 
     // Read link into smaller buffer than the actual link's length
-    // FIXME: the adapter will actually truncate in this case. we could instead
-    // return an error in the adapter?
     let buf = &mut [0u8; 4];
     let bufused = wasi::path_readlink(dir_fd, "symlink", buf.as_mut_ptr(), buf.len())
         .expect("readlink with too-small buffer should silently truncate");
diff --git a/test-programs/wasi-tests/src/bin/symlink_filestat.rs b/test-programs/wasi-tests/src/bin/symlink_filestat.rs
index f588149b..cad9dcd6 100644
--- a/test-programs/wasi-tests/src/bin/symlink_filestat.rs
+++ b/test-programs/wasi-tests/src/bin/symlink_filestat.rs
@@ -2,20 +2,13 @@ use std::{env, process};
 use wasi_tests::open_scratch_directory;
 
 unsafe fn test_path_filestat(dir_fd: wasi::Fd) {
-    let fdstat = wasi::fd_fdstat_get(dir_fd).expect("fd_fdstat_get");
-    assert_ne!(
-        fdstat.fs_rights_base & wasi::RIGHTS_PATH_FILESTAT_GET,
-        0,
-        "the scratch directory should have RIGHT_PATH_FILESTAT_GET as base right",
-    );
-
     // Create a file in the scratch directory.
     let file_fd = wasi::path_open(
         dir_fd,
         0,
         "file",
         wasi::OFLAGS_CREAT,
-        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE | wasi::RIGHTS_PATH_FILESTAT_GET,
+        wasi::RIGHTS_FD_READ | wasi::RIGHTS_FD_WRITE,
         0,
         0,
     )