Files
multi-agent-mux/.agents/skills/lib_py/loop/eager.py
T
GodopuandClaude Fable 5.1 c3e6a7e96d release(v4.7.3): bump framework and eight skills to 4.7.3 in lockstep; archive PR #37 merge-side reviews
Issue #36: delegated prompts travel by file, a delegation that fails ends
the loop with rc 1. VERSIONS.md carries the entry; the merge-side reports
(round 1 @59be1c8 and round 2 @708262a with identity sidecars, base
59be1c8 -> head 708262a, evidence review-tree) are archived under
.agents/reports/<session>/.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VCgu9Fa9iT7TbJUSzdq4Ff
2026-09-24 18:10:28 +09:00

125 lines
3.4 KiB
Python

"""Eager module loading for immutable runtime immunity (Issue #5 Phase 4).
Ensures all dependencies (loop, delegation, agents, external packages)
are loaded into sys.modules at loop startup, preventing mid-flight disk
modifications from triggering lazy-import syntax/EOF errors (B-13).
"""
from __future__ import annotations
import importlib
import os
import sys
from typing import List, Sequence
# Framework version locked with framework constants
FRAMEWORK_VERSION = "4.7.3"
CORE_MODULES: Sequence[str] = (
# Standard library modules
"atexit",
"argparse",
"copy",
"glob",
"hashlib",
"json",
"os",
"pathlib",
"re",
"shutil",
"signal",
"sqlite3",
"subprocess",
"sys",
"tempfile",
"time",
"typing",
# Framework loop modules
"lib_py.loop.parser",
"lib_py.loop.checkpoint",
"lib_py.loop.runner",
"lib_py.loop.attribution",
"lib_py.loop.autocomplete",
"lib_py.loop.evidence",
"lib_py.loop.policy",
"lib_py.loop.shadow",
"lib_py.loop.store",
"lib_py.loop.watcher",
# Delegation and common modules
"lib_py.paths",
"lib_py.state",
"lib_py.atomic_yaml",
"lib_py.workspace_uuid",
"lib_py.verify_session",
"lib_py.layout",
"lib_py.delegation.engine",
"lib_py.delegation.finalize",
"lib_py.delegation.job_subscriber",
"lib_py.delegation.mqtt_common",
"lib_py.delegation.notifier",
"lib_py.delegation.publish_event",
"lib_py.delegation.publisher",
"lib_py.delegation.registry",
"lib_py.delegation.service",
"lib_py.delegation.cli",
# Agent adapter registry
"lib_py.agents.base",
"lib_py.agents.registry",
"lib_py.agents.input_region",
"lib_py.agents.sanitize",
)
OPTIONAL_MODULES: Sequence[str] = (
"yaml",
"paho.mqtt",
"paho.mqtt.client",
)
def verify_framework_version(expected_version: str = FRAMEWORK_VERSION) -> None:
"""Verifies that MAM_VERSION matches framework version if set."""
env_version = os.environ.get("MAM_VERSION")
if env_version and env_version != expected_version:
raise RuntimeError(
f"MAM_VERSION mismatch: expected {expected_version}, got {env_version} in environment."
)
def eager_load(
modules: Sequence[str] = CORE_MODULES,
optional_modules: Sequence[str] = OPTIONAL_MODULES,
) -> List[str]:
"""Eagerly imports all modules into sys.modules.
Returns the list of successfully loaded module names.
"""
verify_framework_version()
# Ensure PYTHONDONTWRITEBYTECODE is set for isolation
sys.dont_write_bytecode = True
os.environ["PYTHONDONTWRITEBYTECODE"] = "1"
loaded: List[str] = []
for mod_name in modules:
if mod_name not in sys.modules:
try:
importlib.import_module(mod_name)
except Exception as exc:
raise RuntimeError(f"Failed to eager load {mod_name}: {exc}") from exc
loaded.append(mod_name)
for opt_mod in optional_modules:
if opt_mod not in sys.modules:
try:
importlib.import_module(opt_mod)
loaded.append(opt_mod)
except (ImportError, ModuleNotFoundError):
pass
return loaded
def is_eager_loaded(modules: Sequence[str] = CORE_MODULES) -> bool:
"""Returns True if all required core modules are present in sys.modules."""
return all(mod in sys.modules for mod in modules)