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ThearchyHelios
311 lines
18 KiB
Python
311 lines
18 KiB
Python
"""能力登记（应用平台 A6）：同步、治理、快照、作证判定、写入能力的位置、正式运行免审批的只读能力、四条发布检查。
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- 同步：主键是图里的工具名；同步得出的效果只说系统知道的（可写数据源为视参数而定，绑定端点的非 GET 为写入）；
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source_hash 没变不动；来源没了记 missing、不删行；
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- 平台能力的治理默认：没人治理过的一直跟着默认走，管理员改过的同步不动；
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- 治理：version 乐观锁、写审计；只读能力才能免审批；查询能力只能是同一端点上、绑定端点的只读能力；
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- 写记忆这类改平台自身状态的内置工具不记成只读（不能免审批、不能当查询能力），照旧能给 Agent 用；
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- is_platform_query：数据源查询，和绑定端点、声明了表格、治理后只读的 http 工具；Python 工具写了表格也不算；
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- build_tools(allow_write=False) 拒绝写入能力，视参数而定的照旧放行；
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- 正式运行：只读 + 免审批的能力直接放行（修 F7），其余照旧问人；总要确认的探索运行里也问；
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- 发布检查：action.write_in_agent、action.unattended_write、action.prod_missing、action.reconcile_unplanned。
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"""
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from __future__ import annotations
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import pytest
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from langchain_core.tools import StructuredTool
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from pydantic import BaseModel
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from sqlalchemy import delete, select, update
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from app.capabilities import registry
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from app.db.base import SessionLocal
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from app.db.models import AuditEvent, Capability, CustomTool, DataSource, Endpoint, McpServer
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from app.records import RECORDS_APPEND, RECORDS_LOOKUP
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from app.tools.registry import ToolBuildError, ToolContext, Versions, build_tools
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from app.tools.trust import CONFIRM, EXEMPT, FORMAL_MARK, call_policy, run_snapshot
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from tests.fakes import auth_env
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@pytest.fixture
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async def world():
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"""一个登记的端点 erp（只有生产环境）、绑定它的读（GET）和写（POST）两个 http 工具、一个 python 工具、
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只读和可写两个数据源、一个缓存了工具清单的 MCP 服务。"""
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async with SessionLocal() as s:
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erp = Endpoint(name="erp", environments={"prod": {"base_url": "https://erp.example.com", "headers": {}}})
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s.add(erp)
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await s.flush()
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s.add_all([
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CustomTool(name="erp_orders", kind="http", parameters={"type": "object", "properties": {}},
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config={"endpoint": erp.id, "method": "GET", "path": "/orders"}),
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CustomTool(name="erp_pay", kind="http", parameters={"type": "object", "properties": {}},
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config={"endpoint": erp.id, "method": "POST", "path": "/payments"}),
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CustomTool(name="calc_py", kind="python", parameters={"type": "object", "properties": {}},
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config={"code": "print(1)"}),
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DataSource(name="sales_ro", kind="sqlite", readonly=True),
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DataSource(name="sales_rw", kind="sqlite", readonly=False),
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McpServer(name="kb", transport="stdio", command="kb-server", tools_cache=["search"]),
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])
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await s.commit()
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erp_id = erp.id
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await registry.sync_all(s)
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try:
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yield {"erp": erp_id}
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finally:
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async with SessionLocal() as s:
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await s.execute(delete(CustomTool).where(CustomTool.name.in_(["erp_orders", "erp_pay", "calc_py"])))
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await s.execute(delete(DataSource).where(DataSource.name.in_(["sales_ro", "sales_rw"])))
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await s.execute(delete(McpServer).where(McpServer.name == "kb"))
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await s.execute(delete(Endpoint).where(Endpoint.name == "erp"))
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await s.execute(delete(Capability))
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await s.execute(delete(AuditEvent))
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await s.commit()
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await registry.refresh_cache(s)
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async def _row(name: str) -> Capability:
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async with SessionLocal() as s:
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row = await s.get(Capability, name)
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assert row is not None, name
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return row
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async def test_sync_derives_effects_and_only_touches_what_changed(world):
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effects = {n: (await _row(n)).effect_system for n in (
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"calculator", "shell_exec", "memory_recall", "memory_write", "db_query__sales_ro", "db_query__sales_rw",
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"db_schema__sales_rw", "erp_orders", "erp_pay", "calc_py", "mcp:kb/search")}
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assert effects == {"calculator": "read", "shell_exec": "dynamic", "memory_recall": "read", "memory_write": "dynamic",
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"db_query__sales_ro": "read", "db_query__sales_rw": "dynamic", "db_schema__sales_rw": "read",
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"erp_orders": "read", "erp_pay": "write", "calc_py": "dynamic", "mcp:kb/search": "dynamic"}, \
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"写记忆改的是平台自己的状态：不是只读"
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pay = await _row("erp_pay")
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assert (pay.system, pay.endpoint_id) == ("erp", world["erp"])
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async with SessionLocal() as s:
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assert await registry.sync_all(s) == 0, "来源没变不改任何行"
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await s.execute(delete(CustomTool).where(CustomTool.name == "calc_py"))
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await s.commit()
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assert await registry.sync_all(s) == 1
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assert (await _row("calc_py")).missing, "来源没了记 missing、不删行"
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async def test_platform_defaults_follow_until_governed(world):
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"""在平台默认写好之前就登记了的 records_append（不许无人值守、没有查询能力）：没人治理过的，同步时改回平台默认，
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不然填报登记的每次提交都要等人确认、结果不明时没人核实；管理员治理过的，同步不再动它。"""
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async with SessionLocal() as s:
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await s.execute(update(Capability).where(Capability.name == RECORDS_APPEND)
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.values(unattended_write=False, lookup=None))
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await s.commit()
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assert await registry.sync_all(s) == 1
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row = await _row(RECORDS_APPEND)
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assert (row.unattended_write, row.lookup, row.version) == (True, RECORDS_LOOKUP, 1)
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c = auth_env.client()
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r = await c.put(f"/api/capabilities/{RECORDS_APPEND}/governance", json={"version": 1, "unattended_write": False})
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assert r.status_code == 200, r.text
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async with SessionLocal() as s:
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assert await registry.sync_all(s) == 0, "管理员改过就听管理员的"
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row = await _row(RECORDS_APPEND)
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assert (row.unattended_write, row.lookup, row.version) == (False, RECORDS_LOOKUP, 2)
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async def test_governance_lock_audit_and_rules(world):
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c = auth_env.client()
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row = (await c.get("/api/capabilities/mcp:kb/search")).json()
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assert row["version"] == 1 and row["effect"] is None
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r = await c.put("/api/capabilities/mcp:kb/search/governance",
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json={"version": 1, "effect": "read", "approval": "none", "masked": ["/phone"]})
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assert r.status_code == 200, r.text
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assert (r.json()["version"], r.json()["effect"], r.json()["approval"]) == (2, "read", "none")
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stale = await c.put("/api/capabilities/mcp:kb/search/governance", json={"version": 1, "approval": "confirm"})
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assert stale.status_code == 409, "读到的是旧版本：别人已经改过"
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bad = await c.put("/api/capabilities/erp_pay/governance", json={"version": 1, "approval": "none"})
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assert bad.status_code == 422, "写入能力不能免审批"
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async with SessionLocal() as s:
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audit = (await s.execute(select(AuditEvent).where(AuditEvent.action == "capability.govern"))).scalar_one()
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assert audit.subject_id == "mcp:kb/search" and audit.data["after"]["approval"] == "none"
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async with SessionLocal() as s:
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snap = await registry.capability_snapshot(s, ["mcp:kb/search", "erp_pay", "nope"])
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versions = await registry.capability_versions_for(s, ["mcp:kb/search", "erp_pay"])
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assert snap["mcp:kb/search"] == {**snap["mcp:kb/search"], "effect": "read", "approval": "none", "version": 2,
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"masked": ["/phone"]}
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assert "nope" not in snap and versions == {"mcp:kb/search": 2, "erp_pay": 1}
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async def test_lookup_is_a_read_on_the_same_endpoint(world):
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c = auth_env.client()
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for wrong in ("memory_write", "db_query__sales_ro", "mcp:kb/search", "erp_pay", "nope"):
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r = await c.put("/api/capabilities/erp_pay/governance", json={"version": 1, "lookup": wrong})
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assert r.status_code == 422 and "同一端点" in r.json()["detail"], wrong
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r = await c.put("/api/capabilities/erp_pay/governance", json={"version": 1, "lookup": "erp_orders"})
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assert r.status_code == 200 and r.json()["lookup"] == "erp_orders", r.text
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r = await c.put("/api/capabilities/erp_pay/governance", json={"version": 2, "lookup": None})
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assert r.status_code == 200 and r.json()["lookup"] is None, "清掉照旧可以"
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async with SessionLocal() as s:
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await s.execute(update(Capability).where(Capability.name == "memory_write").values(effect="read"))
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await s.commit()
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r = await c.put("/api/capabilities/erp_pay/governance", json={"version": 3, "lookup": "memory_write"})
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assert r.status_code == 422, "治理成只读的内置工具也不是端点上的读取，查不了这一笔写入"
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ctx = ToolContext(run_id="t", node_id="n", data_versions=Versions.CURRENT)
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async with SessionLocal() as s:
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await s.execute(update(Capability).where(Capability.name == "memory_write").values(effect=None))
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await s.commit()
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assert [t.name for t in await build_tools(["memory_write"], ctx, session=s)] == ["memory_write"], \
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"写记忆不是对外写入，Agent 照旧能用"
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async def test_tool_library_rehearses_anything_governed_as_a_write(world):
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c = auth_env.client()
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r = await c.put("/api/capabilities/mcp:kb/search/governance", json={"version": 1, "effect": "write"})
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assert r.status_code == 200, r.text
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out = await c.post("/api/tools/mcp:kb/search/run", json={"args": {"q": "x"}})
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assert out.status_code == 200, "演练不发送，没有副作用，不先要确认"
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assert out.json()["rehearsal"] is True and out.json()["result"]["args"] == {"q": "x"}
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async def test_tool_list_says_which_tools_only_rehearse(world):
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"""工具列表上每个工具带 write_rehearsal（和执行接口同一个判断）：详情区的提示条照它说「这里只演练，不真的发送」，
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不说「请求会实际发出」。绑定端点的 POST 是写入；GET、Python 工具、没治理成写入的内置工具不是。"""
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c = auth_env.client()
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tools = {t["id"]: t for t in (await c.get("/api/tools")).json()}
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assert tools["erp_pay"]["write_rehearsal"] is True
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assert tools["erp_orders"]["write_rehearsal"] is False and tools["calc_py"]["write_rehearsal"] is False
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assert tools["file_write"]["write_rehearsal"] is False, "写工作目录不是对外写入，照旧确认后真的执行"
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r = await c.put("/api/capabilities/http_request/governance", json={"version": 1, "effect": "write"})
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assert r.status_code == 200, r.text
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tools = {t["id"]: t for t in (await c.get("/api/tools")).json()}
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assert tools["http_request"]["write_rehearsal"] is True, "治理成写入的内置工具同样只演练"
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run = await c.post("/api/tools/http_request/run", json={"args": {"url": "https://example.com"}})
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assert run.status_code == 200 and run.json()["rehearsal"] is True, "列表上的标记和执行接口同一个判断"
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async def test_platform_query_is_by_identity_not_by_shape(world):
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c = auth_env.client()
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tabular = {"rows": "/items", "columns": {"单号": "/id"}}
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assert not registry.is_platform_query("erp_orders")
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r = await c.put("/api/capabilities/erp_orders/governance", json={"version": 1, "tabular": tabular})
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assert r.status_code == 200, r.text
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assert registry.is_platform_query("erp_orders")
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assert registry.is_platform_query("db_query__sales_ro")
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r = await c.put("/api/capabilities/calc_py/governance", json={"version": 1, "tabular": tabular, "effect": "read"})
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assert r.status_code == 200
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assert not registry.is_platform_query("calc_py"), "用户代码在算的工具写了表格也不能作证"
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async def test_write_capabilities_stay_out_of_agents(world):
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ctx = ToolContext(run_id="t", node_id="n", data_versions=Versions.CURRENT)
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async with SessionLocal() as s:
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with pytest.raises(ToolBuildError, match="erp_pay"):
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await build_tools(["erp_pay"], ctx, session=s)
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assert [t.name for t in await build_tools(["erp_pay"], ctx, session=s, allow_write=True)] == ["erp_pay"]
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# 视参数而定的照旧放行：每次调用按参数问审批
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assert len(await build_tools(["db_query__sales_rw", "shell_exec"], ctx, session=s)) == 2
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async def test_an_endpoint_call_that_depends_on_the_arguments_counts_as_a_write(world):
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"""平台执行器不看参数，分不出这一次读还是写：绑定端点的能力不能治理成视参数而定；登记里已经是视参数而定的（先治理、
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后绑定端点）也按写入对待，Agent 里拒绝。MCP 绑定端点只管连到哪儿，不算。"""
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c = auth_env.client()
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r = await c.put("/api/capabilities/erp_pay/governance", json={"version": 1, "effect": "dynamic"})
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assert r.status_code == 422 and "只读或写入" in r.json()["detail"]
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async with SessionLocal() as s:
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await s.execute(update(Capability).where(Capability.name == "erp_pay").values(effect="dynamic"))
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await s.commit()
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ctx = ToolContext(run_id="t", node_id="n", data_versions=Versions.CURRENT)
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with pytest.raises(ToolBuildError, match="erp_pay"):
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await build_tools(["erp_pay"], ctx, session=s)
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assert registry.writes_externally("erp_pay", "dynamic", world["erp"])
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assert not registry.writes_externally("mcp:kb/search", "dynamic", world["erp"])
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assert not registry.writes_externally("calc_py", "dynamic", None)
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class _NoArgs(BaseModel):
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pass
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def _tool(name: str, key: str | None = None, **meta) -> StructuredTool:
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async def run() -> str:
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return "ok"
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return StructuredTool(name=name, description="", coroutine=run, func=None, args_schema=_NoArgs,
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metadata={**({"trust_key": key} if key else {}), **meta})
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async def test_formal_runs_skip_approval_only_for_governed_read_only(world):
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c = auth_env.client()
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await c.put("/api/capabilities/mcp:kb/search/governance", json={"version": 1, "effect": "read", "approval": "none"})
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await c.put("/api/capabilities/calc_py/governance", json={"version": 1, "approval": "confirm"})
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async with SessionLocal() as s:
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formal = await run_snapshot(s, run_class="formal")
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exploratory = await run_snapshot(s, run_class="exploratory")
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assert formal == {FORMAL_MARK: "1", "mcp:kb/search": EXEMPT, "calc_py": CONFIRM}
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search, other = _tool("search", "mcp:kb/search"), _tool("lookup", "mcp:kb/lookup")
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assert call_policy(search, "search", {}, formal) == "safe", "只读 + 免审批：正式运行直接放行（F7）"
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assert call_policy(other, "lookup", {}, formal) == "ask", "其余照旧问人"
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calc = _tool("calc_py", "calc_py")
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assert call_policy(calc, "calc_py", {}, {**exploratory, "calc_py": CONFIRM}) == "ask"
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assert call_policy(calc, "calc_py", {}, {"calc_py": "always"}) == "safe", "没治理过的照三档"
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# 按参数判定的工具：登记写了只读，DML 照旧问
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dml = _tool("db_query__sales_rw", dangerous_if=lambda args: True)
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assert call_policy(dml, "db_query__sales_rw", {}, {FORMAL_MARK: "1", "db_query__sales_rw": EXEMPT}) == "ask"
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def _spec(*nodes, defaults=None):
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from app.engine.schema import GraphSpec
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graph = {"nodes": [{"id": "in", "type": "input", "position": {"x": 0, "y": 0}, "data": {"label": "入口", "config": {}}},
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*nodes], "edges": [], "defaults": defaults or {}}
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return GraphSpec.model_validate(graph)
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def _node(nid, ntype, **config):
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return {"id": nid, "type": ntype, "position": {"x": 0, "y": 0}, "data": {"label": nid, "config": config}}
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def _codes(spec, level="published"):
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from app.engine.governance import lint_for_publish
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return {(i.code, i.level) for i in lint_for_publish(spec, level=level).issues if (i.code or "").startswith("action.")}
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async def test_publish_lints(world):
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agent = _spec(_node("a", "agent", tools=["erp_pay", "db_query__sales_rw"]))
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assert ("action.write_in_agent", "error") in _codes(agent, "governed")
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assert any(code == "action.write_in_agent" for code, _ in _codes(agent, "published"))
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team = _spec(_node("t", "supervisor", agents=[{"name": "x", "tools": ["erp_pay"]}]))
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assert any(code == "action.write_in_agent" for code, _ in _codes(team, "governed"))
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tool = _spec(_node("w", "tool", tool="erp_pay", approval="never"))
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governed = _codes(tool, "governed")
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assert ("action.unattended_write", "error") in governed
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assert ("action.reconcile_unplanned", "warning") in governed
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assert ("action.unattended_write", "warning") in _codes(tool, "published")
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assert not any(code == "action.prod_missing" for code, _ in governed)
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async with SessionLocal() as s:
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row = await s.get(Endpoint, world["erp"])
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row.environments = {"test": {"base_url": "https://erp-test.example.com", "headers": {}}}
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pay = await s.get(Capability, "erp_pay")
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pay.unattended_write, pay.lookup = True, "erp_orders"
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await s.commit()
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await registry.refresh_cache(s)
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governed = _codes(tool, "governed")
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assert ("action.prod_missing", "error") in governed
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assert not {"action.unattended_write", "action.reconcile_unplanned"} & {c for c, _ in governed}
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assert not _codes(_spec(_node("r", "tool", tool="erp_orders", approval="never")), "governed"), "读取不报"
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async def test_snapshots_for_launch_and_publish_never_write(world):
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"""发起运行、发布时调用方的会话开着写事务：快照只读，登记表里还没有的名字按系统此刻知道的样子补，不插行。"""
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async with SessionLocal() as s:
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s.add(DataSource(name="sales_new", kind="sqlite", readonly=False))
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|
await s.flush() # 调用方自己的写事务还开着
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|
snap = await registry.capability_snapshot(s, ["db_query__sales_new", "erp_pay"])
|
|
versions = await registry.capability_versions_for(s, ["db_query__sales_new"])
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|
await s.commit()
|
|
assert snap["db_query__sales_new"] == {**snap["db_query__sales_new"], "effect": "dynamic", "version": 1}
|
|
assert versions == {"db_query__sales_new": 1}
|
|
async with SessionLocal() as s:
|
|
assert await s.get(Capability, "db_query__sales_new") is None, "快照不往登记表里写"
|
|
await s.execute(delete(DataSource).where(DataSource.name == "sales_new"))
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|
await s.commit()
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