agent-Specialization/config/limits.py
JOJO 8257e4d34d feat(security): 沙箱只读真强制与权限模式边界收敛
- docker:只读/审批档 run_command、后台命令与持久终端改用非特权 uid(10001) 执行角色,内核 DAC 强制只读,取代文本特征识别;Dockerfile 加固(agent 用户 / git safe.directory / 去 setuid)
- macOS:只读与可写沙箱 profile 统一为白名单读模型(deny default + 系统目录/工作区/路径授权),修复 deny 顺序导致的工作区 .env 实际可读漏洞;可写 profile 白名单化后审批不再放大读取,越界读取唯一途径为路径授权
- 权限模式:受限档(readonly/approval/auto_approval)与 direct 执行环境硬互斥——进入受限档压回沙箱并记录,切回 unrestricted 恢复,存量受限+direct 对话加载自愈矫正
- 配置:路径授权来源收敛为 host_sandbox_policy.json + 环境变量两个通道(移除 settings.json 映射)
- 修复:新建对话权限模式被个性化默认值覆盖、/new 切只读后回落无限制的继承 bug
- 原生文件工具读边界与沙箱白名单同源对齐
2026-08-30 22:07:14 +08:00

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"""全局额度与工具限制配置。"""
import os
# 上下文与文件
MAX_CONTEXT_SIZE = 100000
MAX_FILE_SIZE = 10 * 1024 * 1024
MAX_OPEN_FILES = 20
MAX_UPLOAD_SIZE = 50 * 1024 * 1024
# 执行超时
CODE_EXECUTION_TIMEOUT = 60
TERMINAL_COMMAND_TIMEOUT = 120
SEARCH_MAX_RESULTS = 10
# 自动修复与工具调用限制None 表示不限制)
AUTO_FIX_TOOL_CALL = False
AUTO_FIX_MAX_ATTEMPTS = 3
MAX_ITERATIONS_PER_TASK = None
MAX_CONSECUTIVE_SAME_TOOL = None
MAX_TOTAL_TOOL_CALLS = None
TOOL_CALL_COOLDOWN = 0.5
# 推理强度档位(模型配置 supports_reasoning_effort 时思考模式下可选None 表示默认不传参)
REASONING_EFFORT_LEVELS = ("low", "medium", "high", "xhigh", "max")
# 工具字符/体积限制
MAX_READ_FILE_CHARS = 50000
MAX_FOCUS_FILE_CHARS = 30000
MAX_RUN_COMMAND_CHARS = 50000
MAX_EXTRACT_WEBPAGE_CHARS = 80000
# read_file 子配置
READ_TOOL_MAX_FILE_SIZE = 100 * 1024 * 1024
READ_TOOL_DEFAULT_MAX_CHARS = MAX_READ_FILE_CHARS
READ_TOOL_DEFAULT_CONTEXT_BEFORE = 1
READ_TOOL_DEFAULT_CONTEXT_AFTER = 1
READ_TOOL_MAX_CONTEXT_BEFORE = 3
READ_TOOL_MAX_CONTEXT_AFTER = 5
READ_TOOL_DEFAULT_MAX_MATCHES = 5
READ_TOOL_MAX_MATCHES = 50
PROJECT_MAX_STORAGE_MB = int(os.environ.get("PROJECT_MAX_STORAGE_MB", "2048"))
PROJECT_MAX_STORAGE_BYTES = PROJECT_MAX_STORAGE_MB * 1024 * 1024
# 只读权限模式run_command 命令白名单(启发式文本识别)。
# 注意2026-08-30 起):这只是「审批决策」与「兜底」的启发式,不再是安全边界——
# docker 只读由非特权 uid 内核 DAC 强制modules/docker_readonly_exec.py
# 宿主机只读由 OS 沙箱强制modules/host_sandbox_runner.py。已知可绕过
# (如 find . -delete请勿再为它增加拦截规则试图把它做成边界。
READONLY_RUN_COMMAND_ALLOWED = (
"grep",
"find",
"ls",
"pwd",
"tree",
"cat",
"head",
"tail",
"less",
"rg",
"wc",
"du",
"stat",
"file",
"sed",
"awk",
"git",
)
READONLY_RUN_COMMAND_ALLOWED_GIT_SUBCOMMANDS = (
"status",
"log",
"diff",
"show",
"branch",
"rev-parse",
)
READONLY_RUN_COMMAND_BLOCKED_TOKENS = (
"&&",
"||",
";",
"|",
">",
"<",
"$(",
"`",
)
__all__ = [
"MAX_CONTEXT_SIZE",
"MAX_FILE_SIZE",
"MAX_OPEN_FILES",
"MAX_UPLOAD_SIZE",
"CODE_EXECUTION_TIMEOUT",
"TERMINAL_COMMAND_TIMEOUT",
"SEARCH_MAX_RESULTS",
"AUTO_FIX_TOOL_CALL",
"AUTO_FIX_MAX_ATTEMPTS",
"MAX_ITERATIONS_PER_TASK",
"MAX_CONSECUTIVE_SAME_TOOL",
"MAX_TOTAL_TOOL_CALLS",
"TOOL_CALL_COOLDOWN",
"REASONING_EFFORT_LEVELS",
"MAX_READ_FILE_CHARS",
"MAX_FOCUS_FILE_CHARS",
"MAX_RUN_COMMAND_CHARS",
"MAX_EXTRACT_WEBPAGE_CHARS",
"READ_TOOL_MAX_FILE_SIZE",
"READ_TOOL_DEFAULT_MAX_CHARS",
"READ_TOOL_DEFAULT_CONTEXT_BEFORE",
"READ_TOOL_DEFAULT_CONTEXT_AFTER",
"READ_TOOL_MAX_CONTEXT_BEFORE",
"READ_TOOL_MAX_CONTEXT_AFTER",
"READ_TOOL_DEFAULT_MAX_MATCHES",
"READ_TOOL_MAX_MATCHES",
"PROJECT_MAX_STORAGE_MB",
"PROJECT_MAX_STORAGE_BYTES",
"READONLY_RUN_COMMAND_ALLOWED",
"READONLY_RUN_COMMAND_ALLOWED_GIT_SUBCOMMANDS",
"READONLY_RUN_COMMAND_BLOCKED_TOKENS",
]