commit - c78f50be073c1324df8ced7730ea3538e92580f4
commit + d015e13193c3f9fbaf95927d9ad99d206a4ce2e2
blob - 27240973130df2f0ca7d57de805a4629cab6811f
blob + 1e7587d8448b2bbc68475e989dca12bf24eb03f3
--- README.md
+++ README.md
@@ -28,11 +28,12 @@ pisol
 Run a command in that directory sandbox:
 
 ```sh
-pisol -- your-command --with arguments
+pisol your-command --with arguments
 ```
 
-The command receives the caller environment, `PROMPT_ENV_INDICATOR=isolated`,
-and `ISOLATE_ENV` set to the canonical working directory. Calling `pisol -- ...`
+Use `pisol -- COMMAND` when a command name conflicts with a pisol option. The
+command receives the caller environment, `PROMPT_ENV_INDICATOR=isolated`, and
+`ISOLATE_ENV` set to the canonical working directory. Calling `pisol COMMAND`
 inside an existing pisol sandbox prints a warning and directly executes the
 command rather than creating a nested Landlock domain.
 
blob - 0966c7b012fa721f124c9d3989f4a31de57a5038
blob + 6700b955a568d39338aef1b7ee0798fd5f529cd4
--- bin/pisol
+++ bin/pisol
@@ -4,10 +4,12 @@ set -euo pipefail
 pisol_usage() {
 	cat <<'EOF'
 Usage: pisol
+       pisol COMMAND [ARG...]
        pisol -- COMMAND [ARG...]
 
 With no arguments, edit the local .isolate configuration.
-With --, execute COMMAND in the current directory Landrun sandbox.
+With a command, execute it in the current directory Landrun sandbox.
+Use -- before commands whose names begin with a hyphen.
 EOF
 }
 
@@ -41,9 +43,8 @@ case ${1:-} in
 	fi
 	;;
 *)
-	printf 'pisol: unknown option: %s\n' "$1" >&2
-	pisol_usage >&2
-	exit 2
+	# Treat remaining arguments as the command. -- remains available for
+	# command names that conflict with pisol options.
 	;;
 esac
 
blob - 719bc22fcae4c29d6dcd4d5cc3af89279fa2ae73
blob + 89789314f9085e56e28497232eb4c24a28d07602
--- doc/pisol.1
+++ doc/pisol.1
@@ -4,17 +4,21 @@ pisol \- configure and run working-directory Landrun i
 .SH SYNOPSIS
 .B pisol
 .br
+.B pisol
+.I COMMAND
+.RI [ ARG ...]
+.br
 .B pisol --
 .I COMMAND
 .RI [ ARG ...]
 .SH DESCRIPTION
 .B pisol
 opens a Chez Scheme terminal editor for the current directory isolation
-configuration.  With
-.BR -- ,
-it replaces itself with
+configuration.  With a command, it replaces itself with
 .BR landrun (1)
-and executes the command in a working-directory sandbox.
+and executes the command in a working-directory sandbox.  Use
+.B --
+before a command whose name conflicts with a pisol option.
 .PP
 The canonical current directory defines the writable tree.  The configuration
 path is
blob - 6b778faeb157579442fdc80a46aa8618606bdea4
blob + 09a680f38add099be98173fb824792979f375e2a
--- test/integration.sh
+++ test/integration.sh
@@ -33,8 +33,8 @@ run_pisol() {
   )
 }
 
-if run_pisol -- sh -c 'exit 7'; then
-  echo "pisol integration: command status was not propagated" >&2
+if run_pisol sh -c 'exit 7'; then
+  echo "pisol integration: direct command status was not propagated" >&2
   exit 1
 else
   status=$?
@@ -67,6 +67,7 @@ else
 fi
 [ "$before" = "$(cksum "$capture")" ]
 
+run_pisol --help | grep -F 'pisol COMMAND' >/dev/null
 run_pisol --help | grep -F 'pisol -- COMMAND' >/dev/null
 
 rm -f "$project/.isolate"