feat: expose workflow schema catalog in cli

src/wf_cli/app.py

@@ -79,11 +79,10 @@ app.add_typer(runs.app, name="run")
 app.add_typer(sources.app, name="source")
 app.add_typer(admin.app, name="admin")
 app.add_typer(docs.app, name="docs")
-app.add_typer(schema.app, name="schema")
 app.add_typer(config_commands.app, name="config")
 app.command("explain")(explain.explain_command)
 app.command("status")(status.status_command)
-
+app.command("schema")(schema.schema_command)
 
 def main() -> None:
     """Console script entrypoint for `wf`."""

src/wf_cli/commands/schema.py

@@ -2,11 +2,38 @@ from __future__ import annotations
 
 import typer
 
-app = typer.Typer(
-    name="schema",
-    help=(
-        "Work in progress: intended to print expected input shapes for wf "
-        "commands, but currently has no schema subcommands."
-    ),
-    no_args_is_help=True,
+from wf_cli.io import emit_json
+from wf_cli.schema_catalog import (
+    compact_schema_outline,
+    schema_catalog,
+    schema_catalog_payload,
+    verbose_schema_document,
 )
+
+
+def schema_command(
+    name: str | None = typer.Argument(
+        None,
+        help="Schema name or alias (e.g. draft, raw, core, NodeUse). Omit it, or use `list`, to list names.",
+    ),
+    verbose: bool = typer.Option(
+        False,
+        "--verbose",
+        "-v",
+        help="Print complete valid JSON Schema; output may be large.",
+    ),
+) -> None:
+    """Print a compact workflow schema outline or full JSON Schema."""
+    if name is None or name == "list":
+        emit_json(schema_catalog_payload())
+        return
+    try:
+        schema_catalog().resolve(name)
+    except KeyError as exc:
+        message = exc.args[0] if exc.args else str(exc)
+        raise typer.BadParameter(message, param_hint="NAME") from exc
+    emit_json(
+        verbose_schema_document(name)
+        if verbose
+        else compact_schema_outline(name)
+    )