mirror of
https://github.com/kuhyx/steam-backlog-enforcer.git
synced 2026-11-10 19:27:04 +01:00
Krzysztof kuhy Rudnicki
30fcaacc5d
require_snapshot_games / snapshot_game_name (_snapshot), apply_configured_pick (_actions) and hide_others_and_report (library_hider) replace copies spread across the CLI, MCP and stats paths. Tests retargeted to the new owners; test_main_pick_manual split to stay under 250 lines. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01D55DvFEHiwcPN59kwPqwiU
79 lines
3.1 KiB
Python
79 lines
3.1 KiB
Python
"""MCP (Model Context Protocol) server for Steam Backlog Enforcer.
|
|
|
|
Exposes the enforcer's read surface and two *gated* write actions as typed MCP
|
|
tools, so an MCP client (Claude Code and its subagents) can query and — with
|
|
explicit confirmation — drive the backlog without shelling out to the CLI.
|
|
|
|
Run via the dedicated venv that has the ``mcp`` extra installed::
|
|
|
|
~/.venvs/steam-backlog-mcp/bin/python -m steam_backlog_enforcer._mcp
|
|
|
|
(see ``scripts/setup_mcp.sh`` and the repo-root ``.mcp.json``).
|
|
|
|
Safety invariants (do not break when adding tools):
|
|
* **stdout is the JSON-RPC channel.** This module and every function a tool
|
|
calls must never write to stdout. All logging is routed to STDERR below, and
|
|
tools call only stdout-free leaf helpers (never the ``cmd_*`` handlers, which
|
|
``_echo`` to stdout / ``input()`` / ``sys.exit()``).
|
|
* **No secret ever leaves.** There is no tool that returns ``Config`` or reads
|
|
``config.json``; read tools load only ``State`` and the secrets-free web
|
|
dataset. Game-name lookups use the on-disk snapshot only (no Steam API key).
|
|
* **Writes are gated.** Every write tool defaults to a dry-run preview and
|
|
mutates only when ``confirm=True``. These write tools must never be added to
|
|
a permission allowlist (a subagent could then bypass the human).
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import logging
|
|
import sys
|
|
from typing import TYPE_CHECKING
|
|
|
|
from mcp.server import MCPServer
|
|
|
|
from steam_backlog_enforcer._snapshot import snapshot_game_name
|
|
|
|
if TYPE_CHECKING:
|
|
from steam_backlog_enforcer.steam_api import GameInfo
|
|
|
|
# Log to STDERR only — STDOUT carries the MCP JSON-RPC protocol frames, so a
|
|
# single stray stdout write would corrupt the stream and kill the session.
|
|
logging.basicConfig(
|
|
level=logging.INFO,
|
|
stream=sys.stderr,
|
|
format="%(asctime)s [%(levelname)s] steam-mcp: %(message)s",
|
|
)
|
|
logger = logging.getLogger(__name__)
|
|
|
|
mcp = MCPServer("steam-backlog-enforcer")
|
|
|
|
_DEFAULT_LIST_LIMIT = 50
|
|
|
|
|
|
def _resolve_game_name(app_id: int) -> str | None:
|
|
"""Resolve a game name from the on-disk snapshot only (no Config / API).
|
|
|
|
Deliberately snapshot-only: it never constructs ``Config`` and never touches
|
|
the Steam API key, so it is safe to call from an MCP tool. A game absent from
|
|
the last snapshot simply resolves to ``None``.
|
|
|
|
Args:
|
|
app_id: The Steam app id to look up.
|
|
|
|
Returns:
|
|
The game name, or ``None`` if not present in the snapshot.
|
|
"""
|
|
return snapshot_game_name(app_id)
|
|
|
|
|
|
def _backlog_sort_key(game: GameInfo) -> tuple[int, float]:
|
|
"""Sort incomplete games shortest-completionist-first, unknowns last."""
|
|
if game.completionist_hours > 0:
|
|
return (0, game.completionist_hours)
|
|
return (1, 0.0)
|
|
|
|
|
|
# ──────────────────────────────────────────────────────────────
|
|
# Read tools (State-only; never expose Config / the Steam API key)
|
|
# ──────────────────────────────────────────────────────────────
|