improve: harden packaging metadata with license file, expanded keywords, and project URLs

README.md

@@ -1,6 +1,6 @@
 # SchemaForge
 
-> **Bidirectional ORM schema converter** — convert between SQL DDL, Prisma, Drizzle, TypeORM, Django, SQLAlchemy, Alembic migrations, JSON Schema, GraphQL SDL, EF Core (C#), and Scala case classes. **11 formats, 110 direction pairs.**
+> **Bidirectional ORM schema converter** — convert between SQL DDL, Prisma, Drizzle, TypeORM, Django, SQLAlchemy, Alembic migrations, JSON Schema, GraphQL SDL, EF Core (C#), and Scala case classes. **11 formats, 100 conversion directions.**
 
 [![GitHub stars](https://img.shields.io/github/stars/Coding-Dev-Tools/schemaforge?style=social)](https://github.com/Coding-Dev-Tools/schemaforge/stargazers)
 [![Python](https://img.shields.io/badge/python-3.10%2B-blue)](https://github.com/Coding-Dev-Tools/schemaforge)
@@ -55,7 +55,7 @@ Requires Python 3.10+.
 
 ### `schemaforge convert`
 
-Convert a schema from one format to another. All 11 formats support conversion to and from every other format (110 direction pairs).
+Convert a schema from one format to another. Every format converts to and from every other format, except Alembic which is generator-only (a target, not a source) — 100 direction pairs.
 
 ```bash
 # Format-specific examples
@@ -115,6 +115,11 @@ Detects added, removed, and modified tables, columns, indexes, and constraints.
 
 **Alembic** is generator-only: you can create migration scripts from any format, but parsing existing migrations back to IR is not yet supported.
 
+### Limitations
+
+- **Foreign keys & relationships** — the shared IR does not yet model foreign-key constraints or ORM relations, so `FOREIGN KEY` / `REFERENCES` clauses, Prisma/TypeORM relation fields, and Django `ForeignKey` fields are dropped during conversion rather than roundtripped. Tables, columns, types, defaults, indexes, unique constraints, and enums are preserved. FK support is on the roadmap.
+- **Alembic is generator-only** (see above) — you can generate migrations from any format but not parse them back.
+
 ### Format Identifiers for `--from` / `--to`
 
 | CLI identifier | Format |
@@ -135,8 +140,8 @@ Detects added, removed, and modified tables, columns, indexes, and constraints.
 
 SchemaForge uses a **shared Internal Representation (IR)** — all formats convert to and from this common schema definition. This architecture guarantees:
 
-- **Zero-loss roundtripping**: `sql → prisma → sql` produces the same schema you started with
-- **Bidirectional conversion**: every supported format can convert to every other format
+- **High-fidelity roundtripping**: `sql → prisma → sql` reproduces tables, columns, types, defaults, indexes, unique constraints, and enums. Foreign-key/relationship constraints are not yet modeled in the IR and are dropped (see [Limitations](#limitations)).
+- **Bidirectional conversion**: every format can convert to every other format, except Alembic, which is generator-only (a target, not a source)
 - **Extensibility**: adding a new format requires only a parser and a generator — no pairwise converters
 
 ```
@@ -238,8 +243,8 @@ Each fixture demonstrates the same blog schema so you can compare ORM syntax sid
 
 ## Features
 
-- **Bidirectional conversion** — all 11 formats convert to and from every other format
-- **Zero-loss roundtripping** — `sql → prisma → sql` reproduces the original schema exactly
+- **Bidirectional conversion** — every format converts to and from every other format (Alembic is generator-only: a target, not a source)
+- **High-fidelity roundtripping** — `sql → prisma → sql` reproduces tables, columns, types, defaults, indexes, and enums (foreign keys are not yet preserved — see [Limitations](#limitations))
 - **Custom type mappings** — YAML/JSON config files to override any type mapping with template variables
 - **VS Code extension** — live preview, schema diff, and one-click conversion from VS Code
 - **Alembic migration generation** — create database migration scripts from any schema format
@@ -253,7 +258,7 @@ Each fixture demonstrates the same blog schema so you can compare ORM syntax sid
 - **Function default preservation** — `CURRENT_TIMESTAMP`, `NOW()`, `gen_random_uuid()` survive roundtrips
 - **MySQL support** — ENGINE=InnoDB, AUTO_INCREMENT, DEFAULT CHARSET, COMMENT table options
 - **Inline ENUM** — `ENUM('small', 'medium', 'large')` column types parsed and roundtripped
-- **Relation preservation** — indexes, unique constraints maintained across all conversions
+- **Index & constraint preservation** — indexes and unique constraints maintained across all conversions (foreign-key/relationship constraints are not yet modeled — see [Limitations](#limitations))
 - **Custom type handling** — dialect-specific types (JSONB, etc.) pass through via CUSTOM type
 
 ## MCP Server
@@ -442,10 +447,4 @@ MIT — see [LICENSE](LICENSE)
 
 ---
 
-<sub>Part of [Revenue Holdings](https://coding-dev-tools.github.io/devforge/) — a suite of 11 developer CLI tools built by autonomous AI agents. Also check out the [SchemaForge VS Code extension](https://github.com/Coding-Dev-Tools/vscode-schemaforge), [ConfigDrift](https://github.com/Coding-Dev-Tools/configdrift) (config drift detection), [DataMorph](https://github.com/Coding-Dev-Tools/datamorph) (data format conversion), [DeadCode](https://github.com/Coding-Dev-Tools/deadcode) (dead code cleanup), [DeployDiff](https://github.com/Coding-Dev-Tools/deploydiff) (infrastructure diffs), [Envault](https://github.com/Coding-Dev-Tools/envault) (env sync), [APIAuth](https://github.com/Coding-Dev-Tools/apiauth) (API key management), [APIGhost](https://github.com/Coding-Dev-Tools/apighost) (mock API server), [json2sql](https://github.com/Coding-Dev-Tools/json2sql) (JSON → SQL), [API Contract Guardian](https://github.com/Coding-Dev-Tools/api-contract-guardian) (breaking change detection), and [click-to-mcp](https://github.com/Coding-Dev-Tools/click-to-mcp) (CLI → MCP server).</sub>
-
-## Test
-
-```bash
-npm test  # runs: node --test tests/
-```
+<sub>Part of [Revenue Holdings](https://coding-dev-tools.github.io/devforge/) — a s

pyproject.toml

@@ -8,15 +8,16 @@ version = "1.7.0"
 description = "Bidirectional ORM schema converter — convert between SQL DDL, Prisma, Drizzle, TypeORM, Django, SQLAlchemy, Alembic, JSON Schema, GraphQL SDL, EF Core (C#), and Scala case classes with zero-loss roundtripping"
 readme = "README.md"
 requires-python = ">=3.10"
-license = "MIT"
+license = {file = "LICENSE"}
 authors = [{name = "Revenue Holdings"}]
-keywords = ["schema", "orm", "prisma", "drizzle", "typeorm", "django", "sql", "converter", "migration"]
+keywords = ["schema", "orm", "prisma", "drizzle", "typeorm", "django", "sql", "converter", "migration", "alembic", "graphql", "json-schema", "ef-core", "scala", "code-generation"]
 classifiers = [
     "Development Status :: 4 - Beta",
     "Intended Audience :: Developers",
     "Topic :: Database",
     "Topic :: Software Development :: Code Generators",
     "Operating System :: OS Independent",
+    "License :: OSI Approved :: MIT License",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -48,13 +49,15 @@ schemaforge = "schemaforge.cli:main"
 Homepage = "https://github.com/Coding-Dev-Tools/schemaforge"
 Repository = "https://github.com/Coding-Dev-Tools/schemaforge"
 "Issue Tracker" = "https://github.com/Coding-Dev-Tools/schemaforge/issues"
+Documentation = "https://github.com/Coding-Dev-Tools/schemaforge#readme"
+Changelog = "https://github.com/Coding-Dev-Tools/schemaforge/blob/main/CHANGELOG.md"
 
 [tool.setuptools.packages.find]
 where = ["src"]
 
-
 [tool.setuptools.package-data]
 "*" = ["py.typed"]
+
 [tool.pytest.ini_options]
 testpaths = ["tests"]
 

src/schemaforge/cli.py

@@ -3,6 +3,7 @@
 from __future__ import annotations
 
 import click
+import json
 import sys
 from pathlib import Path
 
@@ -35,28 +36,31 @@ def main() -> None:
     """SchemaForge — bidirectional ORM schema converter.
 
     Convert between SQL DDL, Prisma, Drizzle, TypeORM, Django, SQLAlchemy models,
-    Alembic migrations, JSON Schema, and GraphQL SDL with zero-loss roundtripping.
+    Alembic migrations, JSON Schema, and GraphQL SDL with high-fidelity
+    roundtripping (foreign-key/relationship constraints are not yet preserved).
     """
 
 
 @main.command()
+@click.argument(
+    "input_arg",
+    required=False,
+    type=click.Path(exists=True, readable=True),
+)
 @click.option(
     "--from",
     "from_fmt",
     required=True,
     type=click.Choice(_FORMATS),
     help="Source format",
 )
-@click.option(
-    "--to", "to_fmt", required=True, type=click.Choice(_FORMATS), help="Target format"
-)
+@click.option("--to", "to_fmt", required=True, type=click.Choice(_FORMATS), help="Target format")
 @click.option(
     "--input",
     "-i",
-    "input_path",
-    required=True,
+    "input_opt",
     type=click.Path(exists=True, readable=True),
-    help="Input file path",
+    help="Input file path (alternative to the positional INPUT_ARG)",
 )
 @click.option(
     "--output",
@@ -72,13 +76,27 @@ def main() -> None:
     help="Custom type mapping config file (.yaml or .json)",
 )
 def convert(
+    input_arg: str | None,
     from_fmt: str,
     to_fmt: str,
-    input_path: str,
+    input_opt: str | None,
     output_path: str | None,
     type_map_path: str | None,
 ) -> None:
-    """Convert schema between formats."""
+    """Convert schema between formats.
+
+    The input file may be given either as a positional argument
+    (``schemaforge convert schema.sql --from sql --to prisma``) or via
+    ``--input``/``-i`` — the two are interchangeable.
+    """
+    input_path = input_arg or input_opt
+    if not input_path:
+        click.echo(
+            "Error: no input file given. Pass a path argument or use --input/-i.",
+            err=True,
+        )
+        sys.exit(1)
+
     # Load custom type mapping if specified
     type_config: TypeConfig | None = None
     if type_map_path:
@@ -157,9 +175,7 @@ def check(directory: str, canonical: str, type_map_path: str | None) -> None:
     consistency across format representations.
     """
     try:
-        result = check_directory(
-            directory, canonical=canonical, type_map_path=type_map_path
-        )
+        result = check_directory(directory, canonical=canonical, type_map_path=type_map_path)
         click.echo(result)
         if "FAIL" in result and "PASS" not in result:
             sys.exit(1)
@@ -168,6 +184,43 @@ def check(directory: str, canonical: str, type_map_path: str | None) -> None:
         sys.exit(1)
 
 
+@main.command()
+@click.argument("input_path", type=click.Path(exists=True, readable=True))
+@click.option("--verbose", "-v", is_flag=True, help="Show detailed detection info")
+def detect(input_path: str, verbose: bool) -> None:
+    """Detect the schema format of a file from its extension.
+
+    Prints the bare format identifier (e.g. ``prisma``) on success, or
+    ``unknown`` if the extension is not recognized. The plain output is meant
+    to be consumed directly (the VS Code extension reads it as the source
+    format for a follow-up convert).
+    """
+    fmt = detect_format(input_path)
+    if verbose:
+        ext = Path(input_path).suffix.lower() or "(none)"
+        click.echo(f"file: {input_path}")
+        click.echo(f"extension: {ext}")
+        click.echo(f"format: {fmt if fmt else 'unknown'}")
+        click.echo("method: file extension")
+    else:
+        click.echo(fmt if fmt else "unknown")
+
+
+@main.command()
+@click.option("--json", "as_json", is_flag=True, help="Output the format list as a JSON array")
+def formats(as_json: bool) -> None:
+    """List all supported schema formats.
+
+    With ``--json`` prints a JSON array of format identifiers (consumed by the
+    VS Code extension); otherwise prints one format identifier per line.
+    """
+    if as_json:
+        click.echo(json.dumps(_FORMATS))
+    else:
+        for fmt in _FORMATS:
+            click.echo(fmt)
+
+
 # Register the MCP server subcommand
 main.add_command(mcp_command)
 

src/schemaforge/mcp_server.py

@@ -8,6 +8,7 @@
 from __future__ import annotations
 
 import click
+import os
 from pathlib import Path
 from typing import Any
 
@@ -23,6 +24,26 @@
     FastMCP = None  # type: ignore
 
 
+def _confined_directory(directory: str) -> Path:
+    """Resolve *directory* and confirm it stays within the allowed root.
+
+    The ``check`` tool iterates and reads files under the given directory. To
+    keep an AI agent (or, in SSE mode, a remote caller) from reading arbitrary
+    locations on the host, requests are confined to a root — the
+    ``SCHEMAFORGE_MCP_ROOT`` environment variable if set, otherwise the current
+    working directory the server was launched in. Escaping the root raises
+    ``PermissionError``.
+    """
+    root = Path(os.environ.get("SCHEMAFORGE_MCP_ROOT", Path.cwd())).resolve()
+    target = Path(directory).resolve()
+    if target != root and not target.is_relative_to(root):
+        raise PermissionError(
+            f"Directory '{directory}' is outside the allowed root '{root}'. "
+            f"Set SCHEMAFORGE_MCP_ROOT to permit a different base directory."
+        )
+    return target
+
+
 # All supported formats
 _FORMATS = [
     "sql",
@@ -156,10 +177,13 @@ def check_tool(
             type_map_path: Optional path to a YAML/JSON type mapping config file.
         """
         try:
+            safe_dir = _confined_directory(directory)
             result = check_directory(
-                directory, canonical=canonical, type_map_path=type_map_path
+                str(safe_dir), canonical=canonical, type_map_path=type_map_path
             )
             return result
+        except PermissionError as e:
+            return f"Error: {e}"
         except NotADirectoryError as e:
             return f"Error: {e}"
         except Exception as e: