Files
strix/tests/test_safety_evidence.py
T
oyasumiandClaude Opus 5 dad35b9e5f fix(safety): do not treat data tools reading script-named files as execution
Trace review of two guarded-mode runs found the unresolved-execution guard
firing on ordinary commands: curl fetching a .js asset, rg over a .py file, sed
and cat and cp on script-named files — 24 blocks in one run. The guard was meant
to fail closed on an unknown interpreter handed a script, but a read, transfer,
or text tool takes such a file as data, not as a program to run.

Exclude known read commands, HTTP clients, and a set of text/data tools from the
script-suffix branch, so only a genuinely unknown executable given a script still
fails closed. awk moves from the interpreter set to the data tools: its program
is an inline positional argument, not a -c or script file the entrypoint reader
can resolve.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-08-08 17:32:09 +00:00

919 lines
30 KiB
Python

"""Deterministic safety evidence compilation."""
from __future__ import annotations
import ast
import io
from types import SimpleNamespace
from typing import TYPE_CHECKING, Any
import pytest
from strix.config.settings import SafetySettings
from strix.safety.evidence import _PythonFacts, compile_evidence, parse_command
if TYPE_CHECKING:
from pathlib import Path
# Marks a path that exists but cannot be read, which must not look like an absent module.
_UNREADABLE = "<unreadable>"
class _Sandbox:
def __init__(self, files: dict[str, str]) -> None:
self.files = files
async def read(self, path: Path) -> io.BytesIO:
key = path.as_posix()
if key not in self.files:
raise FileNotFoundError(key)
if self.files[key] == _UNREADABLE:
raise PermissionError(key)
return io.BytesIO(self.files[key].encode())
def _facts(source: str) -> _PythonFacts:
facts = _PythonFacts()
facts.visit(ast.parse(source))
return facts
def _ctx(files: dict[str, str], *, turn_input: list[Any] | None = None) -> Any:
return SimpleNamespace(
context={"agent_id": "agent-1", "sandbox_session": _Sandbox(files)},
tool_call_id="call-1",
turn_input=turn_input or [],
)
async def _compile(
command: str,
files: dict[str, str] | None = None,
*,
turn_input: list[Any] | None = None,
workdir: str | None = None,
mode: str = "guarded",
) -> Any:
arguments: dict[str, Any] = {"cmd": command}
if workdir is not None:
arguments["workdir"] = workdir
return await compile_evidence(
case_id="case",
ctx=_ctx(files or {}, turn_input=turn_input),
arguments=arguments,
mode=mode,
scope={},
user_instruction="",
settings=SafetySettings(),
)
def test_parse_command_identifies_direct_browser_action() -> None:
plan = parse_command("agent-browser click @e3")
assert plan.browser is True
assert plan.browser_action == "click"
assert plan.compound is False
def test_parse_command_marks_browser_chaining_compound() -> None:
plan = parse_command("agent-browser click @e3 && agent-browser snapshot -i")
assert plan.browser is True
assert plan.compound is True
@pytest.mark.asyncio
async def test_python_script_collects_local_dependency_source() -> None:
bundle = await compile_evidence(
case_id="case-1",
ctx=_ctx(
{
"/workspace/check.py": "from helper import target\nprint(target)\n",
"/workspace/helper.py": 'target = "https://example.test/health"\n',
}
),
arguments={"cmd": "python /workspace/check.py"},
mode="guarded",
scope={"authorized_targets": [{"value": "https://example.test"}]},
user_instruction="Inspect the test target.",
settings=SafetySettings(),
)
try:
paths = {item["path"] for item in bundle.packet["artifacts"]}
assert paths == {"/workspace/check.py", "/workspace/helper.py"}
assert bundle.complete is True
assert bundle.deterministic_block is None
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_browser_automation_inside_script_is_blocked() -> None:
bundle = await compile_evidence(
case_id="case-2",
ctx=_ctx(
{
"/workspace/browser.py": (
'import subprocess\nsubprocess.run(["agent-browser", "click", "@e3"])\n'
)
}
),
arguments={"cmd": "python /workspace/browser.py"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(),
)
try:
assert bundle.deterministic_block is not None
assert "direct agent-browser commands" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_browser_library_import_inside_script_is_blocked() -> None:
bundle = await compile_evidence(
case_id="case-browser-import",
ctx=_ctx({"/workspace/browser.py": "from playwright.async_api import Browser\n"}),
arguments={"cmd": "python /workspace/browser.py"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(),
)
try:
assert bundle.deterministic_block is not None
assert "direct agent-browser commands" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_dynamic_exec_makes_script_evidence_incomplete() -> None:
bundle = await compile_evidence(
case_id="case-3",
ctx=_ctx({"/workspace/dynamic.py": "exec(input())\n"}),
arguments={"cmd": "python /workspace/dynamic.py"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(),
)
try:
assert bundle.complete is False
assert any("exec" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_dynamic_network_destination_is_incomplete() -> None:
bundle = await compile_evidence(
case_id="case-dynamic-network",
ctx=_ctx(
{"/workspace/network.py": ("import requests\nimport sys\nrequests.get(sys.argv[1])\n")}
),
arguments={"cmd": "python /workspace/network.py https://example.test"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(),
)
try:
assert bundle.complete is False
assert any("dynamic network destination" in item for item in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_creation_and_execution_chain_must_be_split() -> None:
bundle = await compile_evidence(
case_id="case-chain",
ctx=_ctx({}),
arguments={"cmd": "curl https://example.test/x.py -o x.py && python x.py"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(),
)
try:
assert bundle.deterministic_block is not None
assert "split" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_browser_ref_requires_prior_snapshot() -> None:
bundle = await compile_evidence(
case_id="case-4",
ctx=_ctx({}),
arguments={"cmd": "agent-browser click @e3"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(),
)
try:
assert bundle.complete is False
assert "prior snapshot" in bundle.incomplete_reasons[0]
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_browser_ref_uses_prior_snapshot_output() -> None:
history = [
{
"type": "function_call",
"name": "exec_command",
"call_id": "snapshot-1",
"arguments": '{"cmd":"agent-browser snapshot -i"}',
},
{
"type": "function_call_output",
"call_id": "snapshot-1",
"output": '@e3 [button type="submit"] "Search"',
},
]
bundle = await compile_evidence(
case_id="case-5",
ctx=_ctx({}, turn_input=history),
arguments={"cmd": "agent-browser click @e3"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(),
)
try:
assert bundle.complete is True
assert bundle.packet["browser"]["latest_snapshot"]["call_id"] == "snapshot-1"
finally:
bundle.cleanup()
@pytest.mark.asyncio
@pytest.mark.parametrize(
"command",
[
"ls -la\nrm -rf /workspace/app",
"ls & rm -rf /workspace/app",
"ls -la; rm -rf /workspace/app",
],
)
async def test_destructive_command_chained_to_a_read_command_is_blocked(command: str) -> None:
plan = parse_command(command)
assert plan.compound is True
assert plan.read_only is False
bundle = await _compile(command)
try:
assert bundle.deterministic_allow is None
assert bundle.deterministic_block is not None
assert "destructive" in bundle.deterministic_block
finally:
bundle.cleanup()
def test_quoted_separator_is_not_compound() -> None:
assert parse_command("curl 'https://example.test/?a=1&b=2'").compound is False
assert parse_command('agent-browser open "https://example.test/?a=1&b=2"').compound is False
def test_read_only_fast_path_inspects_options() -> None:
assert parse_command("rg -n --json needle /workspace").read_only is True
assert parse_command("ls -la /workspace").read_only is True
# `--pre` hands ripgrep an arbitrary program to run on every matched file.
assert parse_command("rg --pre /workspace/payload.sh -e . /workspace").read_only is False
assert parse_command("rg --search-zip needle /workspace").read_only is False
assert parse_command("file -C -m /workspace/magic /workspace/x").read_only is False
@pytest.mark.asyncio
async def test_inline_python_source_collects_local_dependencies() -> None:
bundle = await _compile(
'python -c "import wipe; wipe.go()"',
{"/workspace/wipe.py": "import shutil\n\n\ndef go():\n shutil.rmtree('/workspace')\n"},
workdir="/workspace",
)
try:
artifacts = bundle.packet["artifacts"]
assert [item["path"] for item in artifacts] == ["<inline>", "/workspace/wipe.py"]
dependency = bundle.root / artifacts[1]["evidence_path"]
assert "shutil.rmtree" in dependency.read_text(encoding="utf-8")
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_inline_python_dynamic_feature_is_incomplete() -> None:
bundle = await _compile('python -c "exec(input())"', workdir="/workspace")
try:
assert bundle.complete is False
assert any("exec" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_relative_imports_are_collected() -> None:
bundle = await _compile(
"python /workspace/main.py",
{
"/workspace/main.py": "import pkg.mod\n",
"/workspace/pkg/__init__.py": "",
"/workspace/pkg/mod.py": "from . import payload\nfrom ..sibling import helper\n",
"/workspace/pkg/payload.py": "import shutil\nshutil.rmtree('/workspace/app')\n",
"/workspace/sibling.py": "helper = 1\n",
},
)
try:
paths = {item["path"] for item in bundle.packet["artifacts"]}
assert "/workspace/pkg/payload.py" in paths
assert "/workspace/sibling.py" in paths
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_import_path_mutation_makes_evidence_incomplete() -> None:
bundle = await _compile(
"python /workspace/run.py",
{
"/workspace/run.py": (
"import sys\nsys.path.insert(0, '/workspace/lib')\nimport payload\npayload.main()\n"
)
},
)
try:
assert bundle.complete is False
assert any("search path" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_unreadable_local_module_is_reported() -> None:
bundle = await _compile(
"python /workspace/run.py",
{"/workspace/run.py": "import payload\n", "/workspace/payload.py": _UNREADABLE},
)
try:
assert bundle.complete is False
assert any("cannot read local module" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_interpreter_environment_override_is_blocked() -> None:
bundle = await _compile("PYTHONPATH=/workspace/lib python /workspace/run.py")
try:
assert bundle.deterministic_block is not None
assert "PYTHONPATH" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_parent_traversal_leaves_the_workspace() -> None:
bundle = await _compile("python ../../opt/staged/run.py", workdir="/workspace")
try:
assert bundle.complete is False
assert "outside the inspectable workspace" in bundle.incomplete_reasons[0]
finally:
bundle.cleanup()
def test_env_wrapper_resolves_the_real_executable() -> None:
plan = parse_command("/usr/bin/env agent-browser click @e5")
assert plan.browser is True
assert plan.browser_action == "click"
def test_opaque_wrapper_fails_closed() -> None:
assert parse_command("timeout 5 rm -rf /workspace").parse_error is not None
@pytest.mark.asyncio
async def test_browser_session_env_override_is_blocked() -> None:
bundle = await _compile("AGENT_BROWSER_SESSION=shared agent-browser click @e3")
try:
assert bundle.deterministic_block is not None
assert "AGENT_BROWSER_SESSION" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_unknown_browser_option_cannot_mask_the_action() -> None:
bundle = await _compile("agent-browser --timeout 5000 eval \"fetch('/x')\"")
try:
assert bundle.packet["pending_action"]["browser_action"] == "eval"
assert bundle.deterministic_block is not None
assert "eval" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_unparseable_browser_option_fails_closed() -> None:
bundle = await _compile("agent-browser --unknown-flag value click @e3")
try:
assert bundle.complete is False
assert any("unrecognized" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_attached_browser_session_override_is_blocked() -> None:
bundle = await _compile("agent-browser --session=evil click @e3")
try:
assert bundle.deterministic_block is not None
assert "overrides are blocked" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_snapshot_taken_before_a_navigation_is_stale() -> None:
history = [
{
"type": "function_call",
"name": "exec_command",
"call_id": "snapshot-1",
"arguments": '{"cmd":"agent-browser snapshot -i"}',
},
{
"type": "function_call_output",
"call_id": "snapshot-1",
"output": '@e3 [button] "Search"',
},
{
"type": "function_call",
"name": "exec_command",
"call_id": "navigate-1",
"arguments": '{"cmd":"agent-browser navigate https://example.test/admin"}',
},
{"type": "function_call_output", "call_id": "navigate-1", "output": "ok"},
]
bundle = await _compile("agent-browser click @e3", turn_input=history)
try:
assert bundle.complete is False
assert any("predates" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_reading_the_page_does_not_stale_a_snapshot() -> None:
history = [
{
"type": "function_call",
"name": "exec_command",
"call_id": "snapshot-1",
"arguments": '{"cmd":"agent-browser snapshot -i"}',
},
{
"type": "function_call_output",
"call_id": "snapshot-1",
"output": '@e3 [button] "Search"',
},
{
"type": "function_call",
"name": "exec_command",
"call_id": "get-1",
"arguments": '{"cmd":"agent-browser get text @e3"}',
},
{"type": "function_call_output", "call_id": "get-1", "output": "Search"},
]
bundle = await _compile("agent-browser click @e3", turn_input=history)
try:
assert bundle.complete is True
assert bundle.packet["browser"]["latest_snapshot"]["stale"] is False
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_dependency_closure_may_exceed_one_file_limit() -> None:
settings = SafetySettings()
filler = "#" * (settings.max_artifact_bytes - 64)
bundle = await _compile(
"python /workspace/run.py",
{
"/workspace/run.py": f"import first\nimport second\n{filler}",
"/workspace/first.py": filler,
"/workspace/second.py": filler,
},
)
try:
assert bundle.complete is True
assert len(bundle.packet["artifacts"]) == 3
finally:
bundle.cleanup()
@pytest.mark.parametrize(
("command", "expected"),
[
("curl -X DELETE https://example.test/users/1", "DELETE"),
("curl --request PUT https://example.test/users/1", "PUT"),
("curl -d payload https://example.test/users", "-d"),
("wget --post-data=x https://example.test/users", "--post-data"),
],
)
def test_mutating_http_requests_are_recognized(command: str, expected: str) -> None:
assert expected in (parse_command(command).mutating_request or "")
def test_passive_http_requests_are_not_flagged() -> None:
assert parse_command("curl https://example.test/users").mutating_request is None
assert parse_command("curl -X GET https://example.test/users").mutating_request is None
@pytest.mark.asyncio
@pytest.mark.parametrize(
("command", "expected"),
[
('bash -c "rm -rf /workspace/app"', "destructive"),
('sh -c "rm -rf /workspace/app"', "destructive"),
('bash -lc "rm -rf /workspace/app"', "destructive"),
('bash -c "agent-browser click @e3"', "Browser automation embedded"),
],
)
async def test_shell_inline_source_is_parsed_not_just_stored(
command: str,
expected: str,
) -> None:
"""`-c` source is the obvious place to hide a command, so the inner string is parsed
and the same deterministic rules applied to it."""
bundle = await _compile(command)
try:
assert bundle.deterministic_block is not None
assert expected in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_shell_inline_source_is_recorded_as_an_artifact() -> None:
bundle = await _compile('bash -c "echo hello"')
try:
[artifact] = bundle.packet["artifacts"]
assert artifact["path"] == "<inline>"
assert artifact["source"] == "echo hello"
assert artifact["inner_executable"] == "echo"
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_module_execution_cannot_be_resolved_to_a_script() -> None:
bundle = await _compile("python -m http.server")
try:
assert bundle.complete is False
assert any("-m execution" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_dependency_count_limit_makes_evidence_incomplete() -> None:
bundle = await compile_evidence(
case_id="case-dependency-limit",
ctx=_ctx(
{
"/workspace/run.py": "import first\nimport second\n",
"/workspace/first.py": "value = 1\n",
"/workspace/second.py": "value = 2\n",
}
),
arguments={"cmd": "python /workspace/run.py"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(max_dependencies=1),
)
try:
assert bundle.complete is False
assert any("dependency count" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_oversized_dependency_closure_makes_evidence_incomplete() -> None:
filler = "#" * 8000
bundle = await compile_evidence(
case_id="case-byte-limit",
ctx=_ctx(
{
"/workspace/run.py": f"import first\n{filler}",
"/workspace/first.py": filler,
}
),
arguments={"cmd": "python /workspace/run.py"},
mode="guarded",
scope={},
user_instruction="",
settings=SafetySettings(max_total_artifact_bytes=10_000),
)
try:
assert bundle.complete is False
assert any("total byte limit" in reason for reason in bundle.incomplete_reasons)
finally:
bundle.cleanup()
@pytest.mark.asyncio
@pytest.mark.parametrize(
("command", "action", "subcommand"),
[
("agent-browser tab new https://example.test/admin", "tab", "new"),
("agent-browser tab close 2", "tab", "close"),
("agent-browser session clear", "session", "clear"),
],
)
async def test_grouped_browser_verbs_are_not_passive(
command: str,
action: str,
subcommand: str,
) -> None:
"""`tab new <url>` navigates and `tab close` destroys page state, so the bare verb
must not be enough to earn the observation fast path."""
plan = parse_command(command)
assert plan.browser_action == action
assert plan.browser_subcommand == subcommand
assert plan.read_only is False
bundle = await _compile(command)
try:
assert bundle.deterministic_allow is None
assert bundle.packet["browser"]["passive"] is False
finally:
bundle.cleanup()
@pytest.mark.asyncio
@pytest.mark.parametrize("command", ["agent-browser tab", "agent-browser snapshot -i"])
async def test_bare_listing_verbs_keep_the_observation_fast_path(command: str) -> None:
bundle = await _compile(command)
try:
assert bundle.deterministic_allow is not None
assert bundle.packet["browser"]["passive"] is True
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_grouped_blocked_verbs_still_match_on_the_verb() -> None:
"""The blocked list keys off the bare verb, so qualifying the action must not stop
`auth login` from matching `auth`."""
bundle = await _compile("agent-browser auth login my-app")
try:
assert bundle.deterministic_block is not None
assert "auth" in bundle.deterministic_block
finally:
bundle.cleanup()
@pytest.mark.asyncio
@pytest.mark.parametrize(
"command",
[
"python3.12 /workspace/run.py",
"/usr/bin/python3.12 /workspace/run.py",
"pypy3 /workspace/run.py",
],
)
async def test_versioned_interpreters_are_inspected(command: str) -> None:
bundle = await _compile(
command,
{"/workspace/run.py": "import helper\n", "/workspace/helper.py": "value = 1\n"},
)
try:
paths = {item["path"] for item in bundle.packet["artifacts"]}
assert paths == {"/workspace/run.py", "/workspace/helper.py"}
assert bundle.complete is True
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_non_python_interpreter_source_is_inspected() -> None:
bundle = await _compile(
"php /workspace/app.php",
{"/workspace/app.php": "<?php unlink('/workspace/data'); ?>\n"},
)
try:
[artifact] = bundle.packet["artifacts"]
assert artifact["path"] == "/workspace/app.php"
assert "unlink" in artifact["source"]
finally:
bundle.cleanup()
@pytest.mark.asyncio
@pytest.mark.parametrize(
"command",
[
"python3.12",
"node",
"mystery-runner /workspace/run.py",
"./vendored-tool /workspace/run.sh",
],
)
async def test_unresolvable_code_execution_fails_closed(command: str) -> None:
"""A packet with no artifacts must never be stamped complete just because the
executable fell outside the interpreter set."""
bundle = await _compile(command, {"/workspace/run.py": "import os\n"})
try:
assert bundle.complete is False
assert bundle.packet["artifacts"] == []
finally:
bundle.cleanup()
@pytest.mark.asyncio
@pytest.mark.parametrize("command", ["nmap -sV example.test", "ls /workspace", "whoami"])
async def test_commands_without_a_script_are_not_forced_incomplete(command: str) -> None:
"""Fail-closed on unresolved script execution must not swallow ordinary tools."""
bundle = await _compile(command)
try:
assert bundle.complete is True
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_absolute_submodule_import_is_collected() -> None:
"""`from pkg import payload` may name a submodule, not an attribute of the package."""
bundle = await _compile(
"python /workspace/main.py",
{
"/workspace/main.py": "from pkg import payload\npayload.go()\n",
"/workspace/pkg/__init__.py": "",
"/workspace/pkg/payload.py": "import shutil\n\n\ndef go():\n shutil.rmtree('/x')\n",
},
)
try:
paths = {item["path"] for item in bundle.packet["artifacts"]}
assert "/workspace/pkg/payload.py" in paths
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_relative_submodule_import_is_collected() -> None:
bundle = await _compile(
"python /workspace/main.py",
{
"/workspace/main.py": "import pkg.mod\n",
"/workspace/pkg/__init__.py": "",
"/workspace/pkg/mod.py": "from .inner import payload\n",
"/workspace/pkg/inner/__init__.py": "",
"/workspace/pkg/inner/payload.py": "import shutil\nshutil.rmtree('/x')\n",
},
)
try:
paths = {item["path"] for item in bundle.packet["artifacts"]}
assert "/workspace/pkg/inner/payload.py" in paths
finally:
bundle.cleanup()
def test_imported_attributes_do_not_pollute_the_reported_imports() -> None:
"""Submodule candidates are resolution-only; the packet still shows the statements
as the author wrote them."""
facts = _facts("from os import path\nfrom mypkg import CONSTANT\n")
assert facts.imports == {"os", "mypkg"}
assert facts.submodule_imports == {"os.path", "mypkg.CONSTANT"}
@pytest.mark.asyncio
async def test_harness_transport_keys_are_hidden_from_the_reviewer() -> None:
"""The shell wrapper stamps `shell: bash` onto every command; surfacing it in the
packet made the reviewer read the transport default as the agent invoking a shell."""
bundle = await compile_evidence(
case_id="case-transport",
ctx=_ctx({}),
arguments={
"cmd": "curl -I \"https://example.test/login?u='+OR+'1'='1\"",
"shell": "bash",
"max_output_tokens": 8000,
},
mode="guarded",
scope={"authorized_targets": [{"value": "https://example.test"}]},
user_instruction="",
settings=SafetySettings(),
)
try:
original = bundle.packet["pending_action"]["original_arguments"]
assert "shell" not in original
assert "max_output_tokens" not in original
assert original["cmd"].startswith("curl")
# A GET probe with a boolean payload is not deterministically blocked; the reviewer
# judges it by effect.
assert bundle.deterministic_block is None
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_shell_field_does_not_hide_a_genuine_bash_c_payload() -> None:
"""Stripping the transport `shell` key must not weaken parsing of an agent-authored
`bash -c`, which is carried in `cmd`, not the shell field."""
bundle = await _compile('bash -c "rm -rf /workspace/app"')
try:
assert bundle.deterministic_block is not None
assert "destructive" in bundle.deterministic_block
finally:
bundle.cleanup()
def test_redirect_input_files_are_parsed_not_heredocs() -> None:
assert parse_command("cmd < in.txt").input_files == ["in.txt"]
assert parse_command('x < "my hosts.txt" > out.txt').input_files == ["my hosts.txt"]
# A heredoc and a process substitution are not files to read.
assert parse_command("cat <<EOF").input_files == []
assert parse_command("diff <(a) <(b)").input_files == []
# Output redirection is not an input.
assert parse_command("sort f > out.txt").input_files == []
@pytest.mark.asyncio
async def test_workspace_input_file_is_attached_for_scope_review() -> None:
"""A host list read via `< file` is evidence the reviewer needs to judge scope, so
its contents ride in the packet instead of leaving the reviewer to block blind."""
bundle = await _compile(
'while read -r host; do dig +short "$host"; done < hosts.txt > out.txt',
{"/workspace/hosts.txt": "admin.fiuu.com\napi.fiuu.com\n"},
workdir="/workspace",
)
try:
inputs = [a for a in bundle.packet["artifacts"] if a.get("role") == "input"]
assert [a["path"] for a in inputs] == ["/workspace/hosts.txt"]
assert "admin.fiuu.com" in inputs[0]["source"]
assert inputs[0]["truncated"] is False
# Attaching contents is not itself a block; the reviewer judges scope.
assert bundle.deterministic_block is None
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_input_file_outside_the_workspace_is_not_read() -> None:
bundle = await _compile("cat < /etc/passwd", workdir="/workspace")
try:
assert [a for a in bundle.packet["artifacts"] if a.get("role") == "input"] == []
finally:
bundle.cleanup()
@pytest.mark.asyncio
async def test_oversize_input_file_is_attached_truncated() -> None:
settings = SafetySettings()
big = "host.fiuu.com\n" * (settings.max_artifact_bytes // 10)
bundle = await compile_evidence(
case_id="case-big-input",
ctx=_ctx({"/workspace/hosts.txt": big}),
arguments={"cmd": "sort < hosts.txt > out.txt", "workdir": "/workspace"},
mode="guarded",
scope={},
user_instruction="",
settings=settings,
)
try:
[inp] = [a for a in bundle.packet["artifacts"] if a.get("role") == "input"]
assert inp["truncated"] is True
assert inp["bytes"] <= settings.max_artifact_bytes
finally:
bundle.cleanup()
@pytest.mark.parametrize(
"command",
[
"curl -sS https://example.test/js/app.js -o /dev/null",
"wget https://example.test/main.bundle.js -O out.js",
"rg -n 'pattern' /workspace/app.py",
"sed -n '1,20p' /workspace/probe.py",
"cat /workspace/onboarding.py",
"cp /workspace/a.sh /workspace/b.sh",
"awk '{print $1}' /workspace/hosts.py",
],
)
def test_data_tools_reading_script_named_files_are_not_execution(command: str) -> None:
"""A read/transfer/text tool takes a script-named file as data, not as a program to
run, so it must not trip the unresolved-execution guard."""
assert parse_command(command).parse_error is None