Files
factory/lib/interns-mcp/interns_mcp/safety.py
vitya ca669d96e1 feat(lib): bundle MCP servers from .common/lib into factory/lib/
Copies source (no node_modules, dist, .tasks, .wiki, __pycache__) for:
- projects-meta-mcp v2.25.0 (TypeScript/Node)
- wiki-graph v0.3.1 (TypeScript/Node)
- interns-mcp v0.3.3 (Python/FastMCP)

.gitignore: exclude lib build artefacts (node_modules, dist, .venv, __pycache__, *.pyc)
bootstrap.ps1: add MCP build step — npm install+build for TS servers, venv+pip for Python

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-06-11 13:17:29 +03:00

65 lines
1.9 KiB
Python

"""Always-ask path matcher — safety enforcement for intern calls."""
from __future__ import annotations
from pathlib import PurePath
# Patterns that always require explicit user approval before sending to an intern.
ALWAYS_ASK_PATTERNS: list[str] = [
"**/.env",
"**/.env.*",
"**/secrets/**",
"**/projects-secrets/**",
"**/credentials*",
"**/*.key",
"**/*.pem",
"**/.ssh/**",
"**/.aws/credentials",
"**/.aws/config",
"**/.netrc",
"**/.npmrc",
"**/.pypirc",
]
ALWAYS_ASK_REASON = (
"Path matched always-ask pattern. "
"Sending this file to an external endpoint requires explicit approval."
)
def check_paths(paths: list[str], extra_patterns: list[str] | None = None) -> list[dict]:
"""Check each path against always-ask patterns.
Returns list of blocked entries: [{"path": ..., "pattern": ..., "reason": ...}].
Empty list = all paths clear.
"""
patterns = list(ALWAYS_ASK_PATTERNS)
if extra_patterns:
patterns.extend(extra_patterns)
blocked = []
for p in paths:
pp = PurePath(p)
for pattern in patterns:
if pp.match(pattern):
blocked.append({"path": p, "pattern": pattern, "reason": ALWAYS_ASK_REASON})
break
return blocked
def always_ask_globs() -> list[str]:
"""Return glob patterns for always-ask paths, suitable for --ignore flags.
Used by tool-wrapping interns (e.g. repo_read) to inject --ignore flags
into subprocess calls, preventing repomix from packaging sensitive files
even if they exist inside the target directory.
"""
# Convert PurePath-style patterns to glob patterns repomix understands.
# Strip leading **/ since repomix --ignore uses gitignore-style patterns.
globs = []
for p in ALWAYS_ASK_PATTERNS:
if p.startswith("**/"):
globs.append(p[3:])
else:
globs.append(p)
return globs