The user wants to start implementing the Tier 1 changes (moving workspace-internal types) and then Tier 2 and Tier 3. Let me plan this out and execute.

The tasks are:
1. Move `Inode` + `SyncResult` from `types.py` to `workspace/sync.py`
2. Move `TransferStats` from `types.py` to `workspace/workspace.py`
3. Move `FilePayload` + `RemoteCommandOptions` to `commands/remote/` (or `commands/`)
4. Move `CommandResult` to `commands/remote/` (fix naming collision too)

5. Move `BackendType` to `cli/config.py`
6. Move `CostLevel` to `commands/`

Now I need to trace through the imports to understand the scope of each type and what'll need updating when I move them.

Looking at `Inode`, it's re-exported from the main package and used across the workspace module, particularly in `DirtyTracker` and various workspace operations, plus it shows up in tests.

`SyncResult` is also re-exported and appears in the sync module where `DirtyTracker` returns it, in the workspace's sync method, and in the local service layer.

`TransferStats` is used in the workspace module and the observer/inspector, so I'll need to check those dependencies too.

I have the grep results from earlier, so I can use those to map out all the import sites before making changes. Now I'm checking which test files import these types and planning how to reorganize them. I need to move `Inode` and `SyncResult` to `workspace/sync.py`, then update the imports across the codebase and test files accordingly.

For `TransferStats`, I'll add it directly to `workspace/workspace.py` and update the observer's import. `BackendType` is simpler since it's only used in one place, so I can move it to `cli/config.py`. Finally, `CostLevel` is shared between handlers and the inspector, so I'll place it in `commands/__init__.py` where both can access it.

Now looking at the remaining types: `FilePayload` and `RemoteCommandOptions` belong in the commands/remote directory since they're only used there. For `CommandResult`, there's a naming conflict with `observe/entries.CommandResult` — the one in types.py represents the runtime response with stdout and output files, while the observe version is for logging. I should move the types version to commands/remote and either keep the name or rename it to something like `ExecutionResult` to avoid confusion. I see there's a naming collision between two different `CommandResult` classes—one in `types.py` that's the public API with stdout and output files, and one in `observe/entries.py` that's just logging metadata with exit code and duration. I should rename the logging one to something like `CommandMetrics` to avoid confusion, though that means updating the imports in local.py and anywhere else it's used.

For now, I'm planning to move several types to their respective modules in one pass: `Inode` and `SyncResult` to workspace/sync.py, `TransferStats` to workspace/workspace.py, `BackendType` to cli/config.py, `CostLevel` to commands/builtin/handlers.py, and `FilePayload`, `RemoteCommandOptions`, and `CommandResult` to commands/remote/client.py since they're already used there. But moving all three to commands/remote/client.py would create a circular dependency issue—commands/custom/registry.py uses `FilePayload` and `RemoteCommandOptions`, so it would need to import from commands/remote/, which might create problems with the module structure.

The better solution is to create a shared `commands/types.py` file for `FilePayload`, `RemoteCommandOptions`, and `CommandResult`, so both commands/custom/registry.py and commands/remote/client.py can import from there without creating cross-module dependencies. For `CostLevel`, since it's used by both commands/builtin/handlers.py and observe/inspector.py, and it's conceptually a command attribute, it belongs in either commands/__init__.py or commands/types.py.

`BackendType` is only used in cli/config.py for URI parsing, so I'll move it there directly. Now I'm laying out the full execution plan: move `Inode` and `SyncResult` to workspace/sync.py, `TransferStats` to workspace/workspace.py, create commands/types.py with the shared types, move `BackendType` to cli/config.py, and handle all three tiers in this session.

After moving the types, I need to update all the import sites, refresh the re-exports in mirage/__init__.py and workspace/__init__.py, remove everything from the old types.py, and run tests to verify nothing broke. Let me check test_types.py to see which test files need updating.


Agent

Find all import sites for remaining types

Prompt:
In /Users/agent/strukto/mirage/, find every import of these names: `Inode`, `SyncResult`, `TransferStats`, `BackendType`, `CostLevel`, `FilePayload`, `RemoteCommandOptions`, `CommandResult`.

For each name, list every file that imports it and from where (the exact import line). Focus on mirage/ and tests/ directories. Ignore __pycache__.

Also read:
- tests/test_types.py (full file)
- mirage/observe/entries.py (first 20 lines, to see if CommandResult is defined there)
- mirage/commands/__init__.py (full file)
- mirage/commands/remote/client.py (first 15 lines)

Output format: For each type, list files with the exact import line.


Perfect! Now I have all the information needed. Let me compile the complete report:

## Import Analysis Report

Here's every file that imports the specified names, with exact import lines:

### **Inode**

1. `/Users/agent/strukto/mirage/mirage/__init__.py`
   - `from mirage.types import FileStat, Inode, MountMode, SyncResult`

2. `/Users/agent/strukto/mirage/mirage/workspace/workspace.py`
   - `from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)`

3. `/Users/agent/strukto/mirage/mirage/workspace/sync.py`
   - `from mirage.types import Inode, SyncResult`

4. `/Users/agent/strukto/mirage/tests/test_types.py`
   - `from mirage.types import (BackendType, CommandResult, FilePayload, FileStat, Inode, RemoteCommandOptions, SyncResult, TransferStats)`

### **SyncResult**

1. `/Users/agent/strukto/mirage/mirage/__init__.py`
   - `from mirage.types import FileStat, Inode, MountMode, SyncResult`

2. `/Users/agent/strukto/mirage/mirage/workspace/workspace.py`
   - `from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)`

3. `/Users/agent/strukto/mirage/mirage/workspace/sync.py`
   - `from mirage.types import Inode, SyncResult`

4. `/Users/agent/strukto/mirage/tests/test_types.py`
   - `from mirage.types import (BackendType, CommandResult, FilePayload, FileStat, Inode, RemoteCommandOptions, SyncResult, TransferStats)`

### **TransferStats**

1. `/Users/agent/strukto/mirage/mirage/workspace/workspace.py`
   - `from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)`

2. `/Users/agent/strukto/mirage/tests/test_types.py`
   - `from mirage.types import (BackendType, CommandResult, FilePayload, FileStat, Inode, RemoteCommandOptions, SyncResult, TransferStats)`

### **BackendType**

1. `/Users/agent/strukto/mirage/mirage/cli/config.py`
   - `from mirage.types import BackendType, MountMode`

2. `/Users/agent/strukto/mirage/tests/test_types.py`
   - `from mirage.types import (BackendType, CommandResult, FilePayload, FileStat, Inode, RemoteCommandOptions, SyncResult, TransferStats)`

### **CostLevel**

1. `/Users/agent/strukto/mirage/mirage/observe/inspector.py`
   - `from mirage.types import CostLevel`

2. `/Users/agent/strukto/mirage/tests/commands/test_init.py`
   - `from mirage.types import CostLevel`

3. `/Users/agent/strukto/mirage/mirage/commands/builtin/handlers.py`
   - `from mirage.types import CostLevel`

### **FilePayload**

1. `/Users/agent/strukto/mirage/tests/test_types.py`
   - `from mirage.types import (BackendType, CommandResult, FilePayload, FileStat, Inode, RemoteCommandOptions, SyncResult, TransferStats)`

2. `/Users/agent/strukto/mirage/tests/commands/remote/test_client.py`
   - `from mirage.types import CommandResult, FilePayload`

3. `/Users/agent/strukto/mirage/mirage/commands/custom/registry.py`
   - `from mirage.types import FilePayload, RemoteCommandOptions`

4. `/Users/agent/strukto/mirage/mirage/commands/remote/client.py`
   - `from mirage.types import CommandResult, FilePayload`

### **RemoteCommandOptions**

1. `/Users/agent/strukto/mirage/tests/commands/custom/test_registry.py`
   - `from mirage.types import (CommandResult, MountMode, RemoteCommandOptions)`

2. `/Users/agent/strukto/mirage/mirage/commands/custom/registry.py`
   - `from mirage.types import FilePayload, RemoteCommandOptions`

3. `/Users/agent/strukto/mirage/tests/test_types.py`
   - `from mirage.types import (BackendType, CommandResult, FilePayload, FileStat, Inode, RemoteCommandOptions, SyncResult, TransferStats)`

### **CommandResult**

1. `/Users/agent/strukto/mirage/tests/test_types.py`
   - `from mirage.types import (BackendType, CommandResult, FilePayload, FileStat, Inode, RemoteCommandOptions, SyncResult, TransferStats)`

2. `/Users/agent/strukto/mirage/tests/commands/custom/test_registry.py`
   - `from mirage.types import (CommandResult, MountMode, RemoteCommandOptions)`

3. `/Users/agent/strukto/mirage/tests/integration/test_remote_transfer.py`
   - `from mirage.types import CommandResult, MountMode`

4. `/Users/agent/strukto/mirage/mirage/server/service/local.py`
   - `from mirage.observe.entries import (CommandEntry, CommandResult, DispatchInfo, ParsedCommand, SessionEntry, WorkspaceInfo)`

5. `/Users/agent/strukto/mirage/tests/commands/remote/test_client.py`
   - `from mirage.types import CommandResult, FilePayload`

6. `/Users/agent/strukto/mirage/mirage/commands/remote/client.py`
   - `from mirage.types import CommandResult, FilePayload`

---

## Additional File Readings

### tests/test_types.py (Full File)
Already provided above - contains 131 lines with comprehensive type tests.

### mirage/observe/entries.py (First 20 Lines)
CommandResult is imported FROM mirage/observe/entries.py (line 12 in mirage/server/service/local.py), but looking at the file itself, it does NOT define CommandResult - it only imports RuntimeType from mirage.types. CommandResult must be defined elsewhere (likely in mirage/types.py).

### mirage/commands/__init__.py (Full File)
```python
from mirage.commands.builtin.handlers import COMMAND_COST, COMMANDS, _resolve

__all__ = ["COMMANDS", "COMMAND_COST", "_resolve"]
```

### mirage/commands/remote/client.py (First 15 Lines)
```python
import base64
from abc import ABC, abstractmethod

import grpc
import httpx

from mirage.commands.remote.auth import ClientAuth, NoAuth
from mirage.commands.remote.grpc.proto import command_pb2, command_pb2_grpc
from mirage.types import CommandResult, FilePayload
```

agentId: ab9f68939e84a81fd (for resuming to continue this agent's work if needed)
<usage>total_tokens: 33040
tool_uses: 37
duration_ms: 26119</usage>

Prompt:
In /Users/agent/strukto/mirage/, find every import of these names: `Inode`, `SyncResult`, `TransferStats`, `BackendType`, `CostLevel`, `FilePayload`, `RemoteCommandOptions`, `CommandResult`.

For each name, list every file that imports it and from where (the exact import line). Focus on mirage/ and tests/ directories. Ignore __pycache__.

Also read:
- tests/test_types.py (full file)
- mirage/observe/entries.py (first 20 lines, to see if CommandResult is defined there)
- mirage/commands/__init__.py (full file)
- mirage/commands/remote/client.py (first 15 lines)

Output format: For each type, list files with the exact import line.


Now I have a complete picture. Let me also look at what `observe/entries.py` actually defines (the agent said it doesn't define CommandResult but local.py imports it from there...). Let me check.

Actually from the agent: "it does NOT define CommandResult - it only imports RuntimeType from mirage.types. CommandResult must be defined elsewhere"

But local.py has:
```python
from mirage.observe.entries import (CommandEntry, CommandResult, DispatchInfo, ParsedCommand, SessionEntry, WorkspaceInfo)
```

Hmm. Let me re-read the observe/entries.py file to understand what's there.

I'm skeptical of the agent's analysis here—let me examine the entries.py file directly to see what's actually being exported, since there's a clear discrepancy between what local.py is importing and what the agent claims the file contains. I also noticed there's a separate test file importing CostLevel, so I should keep that in mind as I move forward with the implementation.

Now I have enough context to proceed with the reorganization. I'm placing `Inode` and `SyncResult` in `workspace/sync.py` where they're already imported, defining `TransferStats` directly in `workspace/workspace.py` since it's only used there and in the inspector, creating a new `commands/types.py` file for `FilePayload`, `RemoteCommandOptions`, and `CommandResult` which are shared between custom and remote modules, putting `BackendType` directly in `cli/config.py`, and re-exporting `CostLevel` from `commands/__init__.py` for the handlers and inspect modules. But first I need to verify whether `observe/entries.py` actually defines `CommandResult` as the import statement suggests.


Let me read the key files I need before making changes:


     1→import uuid
     2→
     3→from pydantic import BaseModel, Field
     4→
     5→from mirage.types import RuntimeType
     6→
     7→
     8→class WorkspaceInfo(BaseModel):
     9→    mounts: dict[str, dict] = Field(default_factory=dict)
    10→    cache_limit: str = ""
    11→    runtime_type: RuntimeType | None = None
    12→
    13→
    14→class SessionEntry(BaseModel):
    15→    type: str = "session"
    16→    version: int = 1
    17→    id: str = Field(default_factory=lambda: uuid.uuid4().hex)
    18→    timestamp: str = ""
    19→    workspace: WorkspaceInfo | None = None
    20→    commands: list[str] = Field(default_factory=list)
    21→
    22→    def to_dict(self) -> dict:
    23→        d = self.model_dump(mode="json")
    24→        if d.get("workspace") is None:
    25→            d.pop("workspace", None)
    26→        return d
    27→
    28→
    29→class ParsedCommand(BaseModel):
    30→    pipeline: list[str] = Field(default_factory=list)
    31→    args: dict[str, list[str]] = Field(default_factory=dict)
    32→
    33→
    34→class DispatchInfo(BaseModel):
    35→    command: str = ""
    36→    handler: str = ""
    37→    source: str = ""
    38→
    39→
    40→class CommandResult(BaseModel):
    41→    exit_code: int = 0
    42→    stdout_bytes: int = 0
    43→    duration_ms: int = 0
    44→
    45→
    46→class BackendOp(BaseModel):
    47→    op: str = ""
    48→    backend: str = ""
    49→    mount: str = ""
    50→    path: str = ""
    51→    bytes: int = 0
    52→    cache: str = ""
    53→    duration_ms: int = 0
    54→
    55→
    56→class CommandEntry(BaseModel):
    57→    type: str = "command"
    58→    id: str = ""
    59→    timestamp: str = ""
    60→    agent_id: str = ""
    61→    raw: str = ""
    62→    parsed: ParsedCommand | None = None
    63→    dispatch: list[DispatchInfo] = Field(default_factory=list)
    64→    result: CommandResult | None = None
    65→    modifications: list[str] = Field(default_factory=list)
    66→    backend_ops: list[BackendOp] = Field(default_factory=list)
    67→
    68→    def to_dict(self) -> dict:
    69→        d = self.model_dump(mode="json")
    70→        if d.get("parsed") is None:
    71→            d.pop("parsed", None)
    72→        if d.get("result") is None:
    73→            d.pop("result", None)
    74→        return d
    75→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import uuid

from pydantic import BaseModel, Field

from mirage.types import RuntimeType

class WorkspaceInfo(BaseModel):
    mounts: dict[str, dict] = Field(default_factory=dict)
    cache_limit: str = ""
    runtime_type: RuntimeType | None = None

class SessionEntry(BaseModel):
    type: str = "session"
    version: int = 1
    id: str = Field(default_factory=lambda: uuid.uuid4().hex)
    timestamp: str = ""
    workspace: WorkspaceInfo | None = None
    commands: list[str] = Field(default_factory=list)

    def to_dict(self) -> dict:
        d = self.model_dump(mode="json")
        if d.get("workspace") is None:
            d.pop("workspace", None)
        return d

class ParsedCommand(BaseModel):
    pipeline: list[str] = Field(default_factory=list)
    args: dict[str, list[str]] = Field(default_factory=dict)

class DispatchInfo(BaseModel):
    command: str = ""
    handler: str = ""
    source: str = ""

class CommandResult(BaseModel):
    exit_code: int = 0
    stdout_bytes: int = 0
    duration_ms: int = 0

class BackendOp(BaseModel):
    op: str = ""
    backend: str = ""
    mount: str = ""
    path: str = ""
    bytes: int = 0
    cache: str = ""
    duration_ms: int = 0

class CommandEntry(BaseModel):
    type: str = "command"
    id: str = ""
    timestamp: str = ""
    agent_id: str = ""
    raw: str = ""
    parsed: ParsedCommand | None = None
    dispatch: list[DispatchInfo] = Field(default_factory=list)
    result: CommandResult | None = None
    modifications: list[str] = Field(default_factory=list)
    backend_ops: list[BackendOp] = Field(default_factory=list)

    def to_dict(self) -> dict:
        d = self.model_dump(mode="json")
        if d.get("parsed") is None:
            d.pop("parsed", None)
        if d.get("result") is None:
            d.pop("result", None)
        return d


     1→import pytest
     2→from pydantic import ValidationError
     3→
     4→from mirage.server.service.session import CommandStats
     5→from mirage.types import (BackendType, CommandResult, FilePayload, FileStat,
     6→                          Inode, RemoteCommandOptions, SyncResult,
     7→                          TransferStats)
     8→
     9→
    10→def test_filestat_defaults():
    11→    fs = FileStat(name="foo.txt")
    12→    assert fs.name == "foo.txt"
    13→    assert fs.size is None
    14→    assert fs.extra == {}
    15→
    16→
    17→def test_filestat_immutable():
    18→    fs = FileStat(name="foo.txt")
    19→    with pytest.raises(ValidationError):
    20→        fs.name = "bar.txt"
    21→
    22→
    23→def test_inode_defaults():
    24→    inode = Inode(virtual_path="/a/b.txt", backend_mount="/a/")
    25→    assert inode.dirty is False
    26→    assert inode.checksum is None
    27→
    28→
    29→def test_inode_mutable():
    30→    inode = Inode(virtual_path="/a/b.txt", backend_mount="/a/")
    31→    inode.dirty = True
    32→    assert inode.dirty is True
    33→
    34→
    35→def test_syncresult_fields():
    36→    r = SyncResult(path="/a/b.txt", op="create", status="ok")
    37→    assert r.op == "create"
    38→    assert r.duration_ms == 0
    39→
    40→
    41→def test_syncresult_immutable():
    42→    r = SyncResult(path="/a/b.txt", op="create", status="ok")
    43→    with pytest.raises(ValidationError):
    44→        r.status = "error"
    45→
    46→
    47→def test_transferstats_mutable():
    48→    ts = TransferStats()
    49→    ts.bytes_read += 100
    50→    assert ts.bytes_read == 100
    51→
    52→
    53→def test_commandstats_defaults():
    54→    cs = CommandStats()
    55→    assert cs.total_commands == 0
    56→    assert cs.command_counts == {}
    57→
    58→
    59→def test_command_result_defaults():
    60→    r = CommandResult(stdout="hello")
    61→    assert r.stdout == "hello"
    62→    assert r.output_files == {}
    63→
    64→
    65→def test_command_result_with_files():
    66→    r = CommandResult(stdout="done", output_files={"/out.csv": b"a,b"})
    67→    assert r.output_files["/out.csv"] == b"a,b"
    68→
    69→
    70→def test_file_payload_with_data():
    71→    p = FilePayload(checksum="abc123", data=b"hello")
    72→    assert p.checksum == "abc123"
    73→    assert p.data == b"hello"
    74→
    75→
    76→def test_file_payload_checksum_only():
    77→    p = FilePayload(checksum="abc123")
    78→    assert p.data is None
    79→
    80→
    81→def test_remote_command_options_defaults():
    82→    opts = RemoteCommandOptions()
    83→    assert opts.max_file_size == "100MB"
    84→    assert opts.cache == "enabled"
    85→
    86→
    87→def test_remote_command_options_custom():
    88→    opts = RemoteCommandOptions(max_file_size="500MB", cache="disabled")
    89→    assert opts.max_file_size == "500MB"
    90→    assert opts.cache == "disabled"
    91→
    92→
    93→def test_remote_command_options_only_two_fields():
    94→    opts = RemoteCommandOptions()
    95→    assert opts.max_file_size == "100MB"
    96→    assert opts.cache == "enabled"
    97→    assert set(RemoteCommandOptions.model_fields.keys()) == {
    98→        "max_file_size", "cache"
    99→    }
   100→
   101→
   102→def test_backend_type_values():
   103→    assert BackendType.MEMORY == "memory"
   104→    assert BackendType.LOCAL == "local"
   105→    assert BackendType.S3 == "s3"
   106→    assert BackendType.R2 == "r2"
   107→    assert BackendType.HTTP == "http"
   108→    assert BackendType.HTTPS == "https"
   109→
   110→
   111→def test_backend_type_string_equality():
   112→    assert BackendType.MEMORY.value == "memory"
   113→    assert BackendType.LOCAL.value == "local"
   114→    assert BackendType.S3.value == "s3"
   115→    assert BackendType.R2.value == "r2"
   116→    assert BackendType.HTTP.value == "http"
   117→    assert BackendType.HTTPS.value == "https"
   118→    assert BackendType("memory") is BackendType.MEMORY
   119→    assert BackendType("s3") is BackendType.S3
   120→
   121→
   122→def test_backend_type_members():
   123→    assert set(BackendType) == {
   124→        BackendType.MEMORY,
   125→        BackendType.LOCAL,
   126→        BackendType.S3,
   127→        BackendType.R2,
   128→        BackendType.HTTP,
   129→        BackendType.HTTPS,
   130→    }
   131→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import pytest
from pydantic import ValidationError

from mirage.server.service.session import CommandStats
from mirage.types import (BackendType, CommandResult, FilePayload, FileStat,
                          Inode, RemoteCommandOptions, SyncResult,
                          TransferStats)

def test_filestat_defaults():
    fs = FileStat(name="foo.txt")
    assert fs.name == "foo.txt"
    assert fs.size is None
    assert fs.extra == {}

def test_filestat_immutable():
    fs = FileStat(name="foo.txt")
    with pytest.raises(ValidationError):
        fs.name = "bar.txt"

def test_inode_defaults():
    inode = Inode(virtual_path="/a/b.txt", backend_mount="/a/")
    assert inode.dirty is False
    assert inode.checksum is None

def test_inode_mutable():
    inode = Inode(virtual_path="/a/b.txt", backend_mount="/a/")
    inode.dirty = True
    assert inode.dirty is True

def test_syncresult_fields():
    r = SyncResult(path="/a/b.txt", op="create", status="ok")
    assert r.op == "create"
    assert r.duration_ms == 0

def test_syncresult_immutable():
    r = SyncResult(path="/a/b.txt", op="create", status="ok")
    with pytest.raises(ValidationError):
        r.status = "error"

def test_transferstats_mutable():
    ts = TransferStats()
    ts.bytes_read += 100
    assert ts.bytes_read == 100

def test_commandstats_defaults():
    cs = CommandStats()
    assert cs.total_commands == 0
    assert cs.command_counts == {}

def test_command_result_defaults():
    r = CommandResult(stdout="hello")
    assert r.stdout == "hello"
    assert r.output_files == {}

def test_command_result_with_files():
    r = CommandResult(stdout="done", output_files={"/out.csv": b"a,b"})
    assert r.output_files["/out.csv"] == b"a,b"

def test_file_payload_with_data():
    p = FilePayload(checksum="abc123", data=b"hello")
    assert p.checksum == "abc123"
    assert p.data == b"hello"

def test_file_payload_checksum_only():
    p = FilePayload(checksum="abc123")
    assert p.data is None

def test_remote_command_options_defaults():
    opts = RemoteCommandOptions()
    assert opts.max_file_size == "100MB"
    assert opts.cache == "enabled"

def test_remote_command_options_custom():
    opts = RemoteCommandOptions(max_file_size="500MB", cache="disabled")
    assert opts.max_file_size == "500MB"
    assert opts.cache == "disabled"

def test_remote_command_options_only_two_fields():
    opts = RemoteCommandOptions()
    assert opts.max_file_size == "100MB"
    assert opts.cache == "enabled"
    assert set(RemoteCommandOptions.model_fields.keys()) == {
        "max_file_size", "cache"
    }

def test_backend_type_values():
    assert BackendType.MEMORY == "memory"
    assert BackendType.LOCAL == "local"
    assert BackendType.S3 == "s3"
    assert BackendType.R2 == "r2"
    assert BackendType.HTTP == "http"
    assert BackendType.HTTPS == "https"

def test_backend_type_string_equality():
    assert BackendType.MEMORY.value == "memory"
    assert BackendType.LOCAL.value == "local"
    assert BackendType.S3.value == "s3"
    assert BackendType.R2.value == "r2"
    assert BackendType.HTTP.value == "http"
    assert BackendType.HTTPS.value == "https"
    assert BackendType("memory") is BackendType.MEMORY
    assert BackendType("s3") is BackendType.S3

def test_backend_type_members():
    assert set(BackendType) == {
        BackendType.MEMORY,
        BackendType.LOCAL,
        BackendType.S3,
        BackendType.R2,
        BackendType.HTTP,
        BackendType.HTTPS,
    }


Now I have a complete picture. Let me plan the execution:

**Key findings:**
1. `observe/entries.py` DOES define `CommandResult` (exit_code, stdout_bytes, duration_ms) — this is the logging metadata, distinct from `types.CommandResult` (stdout, output_files) which is the runtime execution result.
2. `tests/test_types.py` imports all the types I'm moving from `mirage.types` — needs updates.3. `tests/commands/test_init.py` imports `CostLevel` from `mirage.types`.

**Destination plan:**
1. `Inode`, `SyncResult` → define in `workspace/sync.py` (they're already imported from types there)

2. `TransferStats` → define in `workspace/workspace.py` (inline, only used there + inspector)
3. `FilePayload`, `RemoteCommandOptions`, `CommandResult` → new `commands/types.py` (used by both commands/custom and commands/remote)
4. `BackendType` → `cli/config.py` (only used there)
5. `CostLevel` → `commands/__init__.py` (re-export there, or `commands/types.py`)

I'm realizing that grouping `CostLevel` with the other command types in a dedicated module makes sense, so I should consolidate `FilePayload`, `RemoteCommandOptions`, `CommandResult`, and `CostLevel` all in `commands/types.py`, then re-export `CostLevel` from `commands/__init__.py` for backward compatibility.

Now I'm checking where `CostLevel` is actually used—it's in the `COMMAND_COST` dict defined in `commands/builtin/handlers.py` and referenced in `observe/inspector.py`, so moving it to `commands/types.py` and re-exporting it should work cleanly.

For `BackendType`, since it's only used in `cli/config.py`, I'll just define it there directly.

I'm setting up the new `commands/types.py` file with the core type definitions...

Defining the model classes...

Now I need to update the imports across the codebase—removing these classes from the central `types.py` and importing them from their new homes instead. I'll also add `CostLevel` to the `commands` module exports so it's accessible where needed.

For `Inode` and `SyncResult`, they should be imported from `workspace.sync` in the main package and tests. `TransferStats` is trickier though—it's used within `workspace.py` itself, so I'm considering whether it belongs there or in a separate `workspace/types.py` file to avoid circular dependencies. Since it tracks IO transfer statistics related to workspace operations, it could fit in `sync.py` alongside the other workspace-related models.

Actually, I'll keep `TransferStats` in `workspace/workspace.py` since it's only used internally by the `Workspace` class and `observe/inspector.py` just needs it as a type annotation. For the command-related types like `FilePayload`, `RemoteCommandOptions`, and `CommandResult`, they should all live in `commands/types.py` and be imported from there across the codebase and tests.

`CostLevel` also belongs in `commands/types.py` since both `commands/builtin/handlers.py` and `observe/inspector.py` need it. `BackendType` is different though — it's specific to CLI configuration, so I'll define it directly in `cli/config.py` and have tests import from there.

Looking at the `commands/__init__.py` exports, `COMMAND_COST` is a dictionary mapping command names to their cost levels...

Actually, I don't think `commands/__init__.py` needs to re-export `CostLevel` unless it's being imported from there elsewhere. Let me check what `mirage/__init__.py` currently exports — it doesn't include `CostLevel`, so there's no need to add it to `commands/__init__.py` either.

I should also verify whether `workspace/__init__.py` should re-export types like `Inode`, `SyncResult`, and `TransferStats` the way it currently re-exports `Workspace` and `SyncPolicy`.

Looking at the current setup, `mirage/__init__.py` does export `Inode` and `SyncResult`, but `TransferStats` isn't there. So after moving these to `workspace/sync.py`, I'll need to update the re-exports in `workspace/__init__.py` and adjust the imports in `mirage/__init__.py` accordingly.

Here's my plan: move `Inode` and `SyncResult` to `workspace/sync.py`, move `TransferStats` to `workspace/workspace.py`, update `workspace/__init__.py` to re-export the first two, and fix the import paths in `mirage/__init__.py`.

Now I'm distributing the remaining types across their respective modules—`CostLevel`, `FilePayload`, `RemoteCommandOptions`, and `CommandResult` go into a new `commands/types.py`, while `BackendType` moves to `cli/config.py`. Then I'll update all the import statements throughout the codebase and clean up the main `types.py` file by removing everything that's been relocated. I need to read through the remaining files I haven't examined yet—the handlers, registry, config, and test files—then systematically apply all the import changes I've identified.


     1→import posixpath
     2→from typing import Callable
     3→
     4→from mirage.types import CostLevel
     5→from mirage.workspace import Workspace
     6→
     7→from . import nav, net, read, search, write
     8→
     9→
    10→def _resolve(cwd: str, path: str) -> str:
    11→    if path.startswith("/"):
    12→        return path
    13→    return posixpath.normpath(posixpath.join(cwd, path))
    14→
    15→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import posixpath
from typing import Callable

from mirage.types import CostLevel
from mirage.workspace import Workspace

from . import nav, net, read, search, write

def _resolve(cwd: str, path: str) -> str:
    if path.startswith("/"):
        return path
    return posixpath.normpath(posixpath.join(cwd, path))


     1→import hashlib
     2→import shlex
     3→from typing import TYPE_CHECKING
     4→
     5→from pydantic import BaseModel, ConfigDict
     6→
     7→from mirage.commands import COMMANDS
     8→from mirage.commands.custom.arg_resolver import classify_args
     9→from mirage.commands.custom.executor import run_backend_method, run_external
    10→from mirage.server.constants import _parse_size
    11→from mirage.types import FilePayload, RemoteCommandOptions
    12→from mirage.workspace import Workspace
    13→
    14→if TYPE_CHECKING:
    15→    from mirage.commands.remote.client import CommandClient

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import hashlib
import shlex
from typing import TYPE_CHECKING

from pydantic import BaseModel, ConfigDict

from mirage.commands import COMMANDS
from mirage.commands.custom.arg_resolver import classify_args
from mirage.commands.custom.executor import run_backend_method, run_external
from mirage.server.constants import _parse_size
from mirage.types import FilePayload, RemoteCommandOptions
from mirage.workspace import Workspace

if TYPE_CHECKING:
    from mirage.commands.remote.client import CommandClient


     1→import os
     2→
     3→import yaml
     4→
     5→from mirage.backend.base import BaseBackend
     6→from mirage.backend.local.local import LocalBackend
     7→from mirage.backend.local.memory import MemoryBackend
     8→from mirage.types import BackendType, MountMode
     9→from mirage.workspace.consistency import ConsistencyPolicy
    10→
    11→
    12→def _build_backend(type_name: str, connection: str) -> BaseBackend:
    13→    if type_name == BackendType.MEMORY:
    14→        return MemoryBackend()
    15→    if type_name == BackendType.LOCAL:

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import os

import yaml

from mirage.backend.base import BaseBackend
from mirage.backend.local.local import LocalBackend
from mirage.backend.local.memory import MemoryBackend
from mirage.types import BackendType, MountMode
from mirage.workspace.consistency import ConsistencyPolicy

def _build_backend(type_name: str, connection: str) -> BaseBackend:
    if type_name == BackendType.MEMORY:
        return MemoryBackend()
    if type_name == BackendType.LOCAL:


     1→import base64
     2→import inspect
     3→import json
     4→from unittest.mock import MagicMock, patch
     5→
     6→import httpx
     7→import pytest
     8→
     9→from mirage.commands.remote.client import (CommandClient, CommandClientError,
    10→                                           GRPCCommandClient,

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import base64
import inspect
import json
from unittest.mock import MagicMock, patch

import httpx
import pytest

from mirage.commands.remote.client import (CommandClient, CommandClientError,
                                           GRPCCommandClient,


     9→from mirage.commands.remote.client import (CommandClient, CommandClientError,
    10→                                           GRPCCommandClient,
    11→                                           HTTPCommandClient)
    12→from mirage.types import CommandResult, FilePayload
    13→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

from mirage.commands.remote.client import (CommandClient, CommandClientError,
                                           GRPCCommandClient,
                                           HTTPCommandClient)
from mirage.types import CommandResult, FilePayload


     1→from unittest.mock import MagicMock
     2→
     3→from mirage.backend.local.memory import MemoryBackend
     4→from mirage.commands.custom.registry import CommandRegistry, ExternalCommand
     5→from mirage.commands.remote.client import CommandClient
     6→from mirage.types import CommandResult, MountMode
     7→from mirage.workspace import SyncPolicy, Workspace
     8→
     9→
    10→def _fake_run_transform(command, cwd="/", stdin=None, files=None):

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

from unittest.mock import MagicMock

from mirage.backend.local.memory import MemoryBackend
from mirage.commands.custom.registry import CommandRegistry, ExternalCommand
from mirage.commands.remote.client import CommandClient
from mirage.types import CommandResult, MountMode
from mirage.workspace import SyncPolicy, Workspace

def _fake_run_transform(command, cwd="/", stdin=None, files=None):


Bash

head -5 tests/commands/test_init.py 2>/dev/null || echo "NOT FOUND"

Check test_init.py location


from mirage.backend.local.memory import MemoryBackend
from mirage.commands import COMMAND_COST, COMMANDS
from mirage.types import CostLevel
from mirage.workspace import Workspace


Now I have everything. Let me execute all the changes:

**Summary of all changes:**

**New file: `mirage/commands/types.py`** — `CostLevel`, `FilePayload`, `RemoteCommandOptions`, `CommandResult`

**`mirage/workspace/sync.py`** — add `Inode`, `SyncResult` class definitions; remove `from mirage.types import Inode, SyncResult`

**`mirage/workspace/workspace.py`** — add `TransferStats` definition; update sync import to include `Inode, SyncResult`; remove `Inode, SyncResult, TransferStats` from types import

Now I need to update the re-exports across the package — adding `Inode` and `SyncResult` to the workspace module's public API, then updating the main package init to import these from workspace instead of types, and finally updating all the command modules to import their respective types from the new commands.types module.

Then I'll need to clean up `mirage/types.py` by removing all the types that are now defined elsewhere, and update the test files to reflect these new import locations.


Now I have the full picture. Let me execute all changes:


TodoWrite

Create commands/types.py with CostLevel, FilePayload, RemoteCommandOptions, CommandResult

Move Inode + SyncResult to workspace/sync.py

Moving Inode + SyncResult to workspace/sync.py

Move TransferStats to workspace/workspace.py

Moving TransferStats to workspace/workspace.py

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

Create commands/types.py with CostLevel, FilePayload, RemoteCommandOptions, CommandResult

Move Inode + SyncResult to workspace/sync.py

Moving Inode + SyncResult to workspace/sync.py

Move TransferStats to workspace/workspace.py

Moving TransferStats to workspace/workspace.py

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


Write

from enum import Enum

from pydantic import BaseModel, ConfigDict

class CostLevel(str, Enum):
    CHEAP = "cheap"
    PARTIAL = "partial"
    EXPENSIVE = "expensive"
    NETWORK = "network"

class FilePayload(BaseModel):
    checksum: str
    data: bytes | None = None

class RemoteCommandOptions(BaseModel):
    max_file_size: str = "100MB"
    cache: str = "enabled"

class CommandResult(BaseModel):
    model_config = ConfigDict(arbitrary_types_allowed=True)

    stdout: str = ""
    output_files: dict[str, bytes] = {}


File created successfully at: /Users/agent/strukto/mirage/mirage/commands/types.py

from enum import Enum

from pydantic import BaseModel, ConfigDict

class CostLevel(str, Enum):
    CHEAP = "cheap"
    PARTIAL = "partial"
    EXPENSIVE = "expensive"
    NETWORK = "network"

class FilePayload(BaseModel):
    checksum: str
    data: bytes | None = None

class RemoteCommandOptions(BaseModel):
    max_file_size: str = "100MB"
    cache: str = "enabled"

class CommandResult(BaseModel):
    model_config = ConfigDict(arbitrary_types_allowed=True)

    stdout: str = ""
    output_files: dict[str, bytes] = {}


TodoWrite

Create commands/types.py with CostLevel, FilePayload, RemoteCommandOptions, CommandResult

Move Inode + SyncResult to workspace/sync.py

Moving Inode + SyncResult to workspace/sync.py

Move TransferStats to workspace/workspace.py

Moving TransferStats to workspace/workspace.py

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


**Move `Inode` + `SyncResult` to `workspace/sync.py`:**


Edit

import hashlib
import time
from enum import Enum

from mirage.backend.base import BaseBackend
from mirage.types import Inode, SyncResult

class SyncPolicy(str, Enum):

import hashlib
import time
from enum import Enum

from pydantic import BaseModel, ConfigDict

from mirage.backend.base import BaseBackend

class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class Inode(BaseModel):
    virtual_path: str
    backend_mount: str
    checksum: str | None = None
    size: int | None = None
    remote_checksum: str | None = None
    dirty: bool = False

class SyncResult(BaseModel):
    model_config = ConfigDict(frozen=True)

    path: str
    op: str
    status: str
    remote: str | None = None
    bytes: int | None = None
    duration_ms: int = 0
    error: str | None = None

class SyncPolicy(str, Enum):


The file /Users/agent/strukto/mirage/mirage/workspace/sync.py has been updated successfully.

import hashlib
import time
from enum import Enum

from pydantic import BaseModel, ConfigDict

from mirage.backend.base import BaseBackend

class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class Inode(BaseModel):
    virtual_path: str
    backend_mount: str
    checksum: str | None = None
    size: int | None = None
    remote_checksum: str | None = None
    dirty: bool = False

class SyncResult(BaseModel):
    model_config = ConfigDict(frozen=True)

    path: str
    op: str
    status: str
    remote: str | None = None
    bytes: int | None = None
    duration_ms: int = 0
    error: str | None = None

class SyncPolicy(str, Enum):

import hashlib
import time
from enum import Enum

from mirage.backend.base import BaseBackend
from mirage.types import Inode, SyncResult

class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class DirtyTracker:
    """
    Tracks which virtual paths have local changes that haven't been synced
    to their backing backend.

    Lifecycle:
        on_read()  — record baseline remote checksum (not dirty)
        on_write() — update local checksum, mark dirty=True
        on_sync()  — upload to backend, clear dirty flag
    """

    def __init__(self) -> None:
        self._inodes: dict[str, Inode] = {}

    # ── event hooks ─────────────────────────────────────────────────────────

    def on_read(self, path: str, data: bytes, mount: str) -> None:
        checksum = _md5(data)
        if path in self._inodes:
            inode = self._inodes[path]
            inode.remote_checksum = checksum
            inode.checksum = checksum
            inode.size = len(data)
            inode.dirty = False
        else:
            self._inodes[path] = Inode(
                virtual_path=path,
                backend_mount=mount,
                checksum=checksum,
                size=len(data),
                remote_checksum=checksum,
                dirty=False,
            )

    def on_write(self, path: str, data: bytes, mount: str) -> None:
        checksum = _md5(data)
        if path in self._inodes:
            inode = self._inodes[path]
            inode.checksum = checksum
            inode.size = len(data)
            inode.dirty = True
        else:
            self._inodes[path] = Inode(
                virtual_path=path,
                backend_mount=mount,
                checksum=checksum,
                size=len(data),
                remote_checksum=None,
                dirty=True,
            )

    def on_delete(self, path: str) -> None:
        if path in self._inodes:
            self._inodes[path].dirty = True
            self._inodes[path].checksum = None
            self._inodes[path].size = None

    def on_sync(self, virtual_path: str, backend_path: str, data: bytes | None,
                backend: BaseBackend) -> SyncResult:
        """
        Upload `data` to backend at `backend_path`. Pass None for deletions.
        `virtual_path` tracks the inode; `backend_path` goes to the backend.
        Returns a SyncResult describing the outcome.
        """
        inode = self._inodes.get(virtual_path)
        op = "delete" if data is None else ("create" if (
            inode and inode.remote_checksum is None) else "modify")
        t0 = time.monotonic()
        try:
            if data is None:
                backend.unlink(backend_path)
            else:
                backend.put(backend_path, data)
            duration_ms = int((time.monotonic() - t0) * 1000)
            checksum = _md5(data) if data is not None else None
            if inode:
                inode.remote_checksum = checksum
                inode.dirty = False
            return SyncResult(path=virtual_path,
                              op=op,
                              status="ok",
                              bytes=len(data) if data else None,
                              duration_ms=duration_ms)
        except Exception as exc:
            duration_ms = int((time.monotonic() - t0) * 1000)
            return SyncResult(path=virtual_path,
                              op=op,
                              status="error",
                              duration_ms=duration_ms,
                              error=str(exc))

    # ── queries ─────────────────────────────────────────────────────────────

    def dirty(self) -> list[Inode]:
        return [i for i in self._inodes.values() if i.dirty]

    def status(self) -> list[Inode]:
        return list(self._inodes.values())

    def get(self, path: str) -> Inode | None:
        return self._inodes.get(path)

    def reset(self) -> None:
        self._inodes.clear()

def _md5(data: bytes) -> str:
    return hashlib.md5(data).hexdigest()

+from pydantic import BaseModel, ConfigDict

-from mirage.types import Inode, SyncResult

+    model_config = ConfigDict(frozen=True)


Wait, I added `SyncPolicy` twice! I need to fix that. The original file had `SyncPolicy` already defined after the imports. I need to remove the duplicate.Let me re-read sync.py and fix it.


I duplicated `SyncPolicy`. Let me fix:


     1→import hashlib
     2→import time
     3→from enum import Enum
     4→
     5→from pydantic import BaseModel, ConfigDict
     6→
     7→from mirage.backend.base import BaseBackend
     8→
     9→
    10→class SyncPolicy(str, Enum):
    11→    STAGED = "staged"
    12→    IMMEDIATE = "immediate"
    13→    MANUAL = "manual"
    14→
    15→
    16→class Inode(BaseModel):
    17→    virtual_path: str
    18→    backend_mount: str
    19→    checksum: str | None = None
    20→    size: int | None = None
    21→    remote_checksum: str | None = None
    22→    dirty: bool = False
    23→
    24→
    25→class SyncResult(BaseModel):
    26→    model_config = ConfigDict(frozen=True)
    27→
    28→    path: str
    29→    op: str
    30→    status: str
    31→    remote: str | None = None
    32→    bytes: int | None = None
    33→    duration_ms: int = 0
    34→    error: str | None = None
    35→
    36→
    37→class SyncPolicy(str, Enum):
    38→    STAGED = "staged"
    39→    IMMEDIATE = "immediate"
    40→    MANUAL = "manual"
    41→
    42→
    43→class DirtyTracker:
    44→    """
    45→    Tracks which virtual paths have local changes that haven't been synced
    46→    to their backing backend.
    47→
    48→    Lifecycle:
    49→        on_read()  — record baseline remote checksum (not dirty)
    50→        on_write() — update local checksum, mark dirty=True
    51→        on_sync()  — upload to backend, clear dirty flag
    52→    """
    53→
    54→    def __init__(self) -> None:
    55→        self._inodes: dict[str, Inode] = {}

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import hashlib
import time
from enum import Enum

from pydantic import BaseModel, ConfigDict

from mirage.backend.base import BaseBackend

class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class Inode(BaseModel):
    virtual_path: str
    backend_mount: str
    checksum: str | None = None
    size: int | None = None
    remote_checksum: str | None = None
    dirty: bool = False

class SyncResult(BaseModel):
    model_config = ConfigDict(frozen=True)

    path: str
    op: str
    status: str
    remote: str | None = None
    bytes: int | None = None
    duration_ms: int = 0
    error: str | None = None

class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class DirtyTracker:
    """
    Tracks which virtual paths have local changes that haven't been synced
    to their backing backend.

    Lifecycle:
        on_read()  — record baseline remote checksum (not dirty)
        on_write() — update local checksum, mark dirty=True
        on_sync()  — upload to backend, clear dirty flag
    """

    def __init__(self) -> None:
        self._inodes: dict[str, Inode] = {}


class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class DirtyTracker:


import hashlib
import time
from enum import Enum

from pydantic import BaseModel, ConfigDict

from mirage.backend.base import BaseBackend

class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class Inode(BaseModel):
    virtual_path: str
    backend_mount: str
    checksum: str | None = None
    size: int | None = None
    remote_checksum: str | None = None
    dirty: bool = False

class SyncResult(BaseModel):
    model_config = ConfigDict(frozen=True)

    path: str
    op: str
    status: str
    remote: str | None = None
    bytes: int | None = None
    duration_ms: int = 0
    error: str | None = None

class SyncPolicy(str, Enum):
    STAGED = "staged"
    IMMEDIATE = "immediate"
    MANUAL = "manual"

class DirtyTracker:
    """
    Tracks which virtual paths have local changes that haven't been synced
    to their backing backend.

    Lifecycle:
        on_read()  — record baseline remote checksum (not dirty)
        on_write() — update local checksum, mark dirty=True
        on_sync()  — upload to backend, clear dirty flag
    """

    def __init__(self) -> None:
        self._inodes: dict[str, Inode] = {}

    # ── event hooks ─────────────────────────────────────────────────────────

    def on_read(self, path: str, data: bytes, mount: str) -> None:
        checksum = _md5(data)
        if path in self._inodes:
            inode = self._inodes[path]
            inode.remote_checksum = checksum
            inode.checksum = checksum
            inode.size = len(data)
            inode.dirty = False
        else:
            self._inodes[path] = Inode(
                virtual_path=path,
                backend_mount=mount,
                checksum=checksum,
                size=len(data),
                remote_checksum=checksum,
                dirty=False,
            )

    def on_write(self, path: str, data: bytes, mount: str) -> None:
        checksum = _md5(data)
        if path in self._inodes:
            inode = self._inodes[path]
            inode.checksum = checksum
            inode.size = len(data)
            inode.dirty = True
        else:
            self._inodes[path] = Inode(
                virtual_path=path,
                backend_mount=mount,
                checksum=checksum,
                size=len(data),
                remote_checksum=None,
                dirty=True,
            )

    def on_delete(self, path: str) -> None:
        if path in self._inodes:
            self._inodes[path].dirty = True
            self._inodes[path].checksum = None
            self._inodes[path].size = None

    def on_sync(self, virtual_path: str, backend_path: str, data: bytes | None,
                backend: BaseBackend) -> SyncResult:
        """
        Upload `data` to backend at `backend_path`. Pass None for deletions.
        `virtual_path` tracks the inode; `backend_path` goes to the backend.
        Returns a SyncResult describing the outcome.
        """
        inode = self._inodes.get(virtual_path)
        op = "delete" if data is None else ("create" if (
            inode and inode.remote_checksum is None) else "modify")
        t0 = time.monotonic()
        try:
            if data is None:
                backend.unlink(backend_path)
            else:
                backend.put(backend_path, data)
            duration_ms = int((time.monotonic() - t0) * 1000)
            checksum = _md5(data) if data is not None else None
            if inode:
                inode.remote_checksum = checksum
                inode.dirty = False
            return SyncResult(path=virtual_path,
                              op=op,
                              status="ok",
                              bytes=len(data) if data else None,
                              duration_ms=duration_ms)
        except Exception as exc:
            duration_ms = int((time.monotonic() - t0) * 1000)
            return SyncResult(path=virtual_path,
                              op=op,
                              status="error",
                              duration_ms=duration_ms,
                              error=str(exc))

    # ── queries ─────────────────────────────────────────────────────────────

    def dirty(self) -> list[Inode]:
        return [i for i in self._inodes.values() if i.dirty]

    def status(self) -> list[Inode]:
        return list(self._inodes.values())

    def get(self, path: str) -> Inode | None:
        return self._inodes.get(path)

    def reset(self) -> None:
        self._inodes.clear()

def _md5(data: bytes) -> str:
    return hashlib.md5(data).hexdigest()


Now update `workspace/__init__.py` and `mirage/__init__.py` to re-export `Inode` + `SyncResult`:


     1→from mirage.workspace.sync import SyncPolicy
     2→from mirage.workspace.workspace import Workspace
     3→
     4→__all__ = ["Workspace", "SyncPolicy"]
     5→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

from mirage.workspace.sync import SyncPolicy
from mirage.workspace.workspace import Workspace

__all__ = ["Workspace", "SyncPolicy"]


     1→from mirage.backend.local import LocalBackend, MemoryBackend
     2→from mirage.types import FileStat, Inode, MountMode, SyncResult
     3→from mirage.workspace import SyncPolicy
     4→from mirage.workspace import Workspace
     5→from mirage.workspace.consistency import ConsistencyPolicy
     6→
     7→__all__ = [
     8→    "Workspace",
     9→    "MemoryBackend",
    10→    "LocalBackend",
    11→    "ConsistencyPolicy",
    12→    "FileStat",
    13→    "Inode",
    14→    "MountMode",
    15→    "SyncPolicy",
    16→    "SyncResult",
    17→]
    18→

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

from mirage.backend.local import LocalBackend, MemoryBackend
from mirage.types import FileStat, Inode, MountMode, SyncResult
from mirage.workspace import SyncPolicy
from mirage.workspace import Workspace
from mirage.workspace.consistency import ConsistencyPolicy

__all__ = [
    "Workspace",
    "MemoryBackend",
    "LocalBackend",
    "ConsistencyPolicy",
    "FileStat",
    "Inode",
    "MountMode",
    "SyncPolicy",
    "SyncResult",
]


from mirage.workspace.sync import SyncPolicy
from mirage.workspace.workspace import Workspace

__all__ = ["Workspace", "SyncPolicy"]

from mirage.workspace.sync import Inode, SyncPolicy, SyncResult
from mirage.workspace.workspace import Workspace

__all__ = ["Workspace", "SyncPolicy", "Inode", "SyncResult"]


The file /Users/agent/strukto/mirage/mirage/workspace/__init__.py has been updated successfully.

from mirage.workspace.sync import SyncPolicy
from mirage.workspace.workspace import Workspace

__all__ = ["Workspace", "SyncPolicy"]

from mirage.workspace.sync import Inode, SyncPolicy, SyncResult
from mirage.workspace.workspace import Workspace

__all__ = ["Workspace", "SyncPolicy", "Inode", "SyncResult"]

-from mirage.workspace.sync import SyncPolicy

+from mirage.workspace.sync import Inode, SyncPolicy, SyncResult

+__all__ = ["Workspace", "SyncPolicy", "Inode", "SyncResult"]


from mirage.types import FileStat, Inode, MountMode, SyncResult
from mirage.workspace import SyncPolicy
from mirage.workspace import Workspace

from mirage.types import FileStat, MountMode
from mirage.workspace import Inode, SyncPolicy, SyncResult, Workspace


The file /Users/agent/strukto/mirage/mirage/__init__.py has been updated successfully.

from mirage.types import FileStat, MountMode
from mirage.workspace import Inode, SyncPolicy, SyncResult, Workspace

from mirage.backend.local import LocalBackend, MemoryBackend
from mirage.types import FileStat, Inode, MountMode, SyncResult
from mirage.workspace import SyncPolicy
from mirage.workspace import Workspace
from mirage.workspace.consistency import ConsistencyPolicy

__all__ = [
    "Workspace",
    "MemoryBackend",
    "LocalBackend",
    "ConsistencyPolicy",
    "FileStat",
    "Inode",
    "MountMode",
    "SyncPolicy",
    "SyncResult",
]

-from mirage.types import FileStat, Inode, MountMode, SyncResult

-from mirage.workspace import SyncPolicy

+from mirage.types import FileStat, MountMode

+from mirage.workspace import Inode, SyncPolicy, SyncResult, Workspace


TodoWrite

Create commands/types.py with CostLevel, FilePayload, RemoteCommandOptions, CommandResult

Move Inode + SyncResult to workspace/sync.py

Moving Inode + SyncResult to workspace/sync.py

Move TransferStats to workspace/workspace.py

Moving TransferStats to workspace/workspace.py

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


**Move `TransferStats` to `workspace/workspace.py`** (add before the `Workspace` class):


     1→from __future__ import annotations
     2→
     3→import time
     4→
     5→from mirage.backend.base import BaseBackend
     6→from mirage.backend.filetype import guess_type
     7→from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)
     8→from mirage.workspace.cache import LRUCache
     9→from mirage.workspace.consistency import ConsistencyPolicy, is_fresh
    10→from mirage.workspace.mount import MountRegistry
    11→from mirage.workspace.sync import DirtyTracker, SyncPolicy
    12→
    13→
    14→class _PathLock:
    15→
    16→    def __init__(self, ws: Workspace, paths: list[str]) -> None:
    17→        self._ws = ws
    18→        self._paths = paths

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

from __future__ import annotations

import time

from mirage.backend.base import BaseBackend
from mirage.backend.filetype import guess_type
from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)
from mirage.workspace.cache import LRUCache
from mirage.workspace.consistency import ConsistencyPolicy, is_fresh
from mirage.workspace.mount import MountRegistry
from mirage.workspace.sync import DirtyTracker, SyncPolicy

class _PathLock:

    def __init__(self, ws: Workspace, paths: list[str]) -> None:
        self._ws = ws
        self._paths = paths


Edit

from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)
from mirage.workspace.cache import LRUCache
from mirage.workspace.consistency import ConsistencyPolicy, is_fresh
from mirage.workspace.mount import MountRegistry
from mirage.workspace.sync import DirtyTracker, SyncPolicy

class _PathLock:

from pydantic import BaseModel

from mirage.types import FileStat, MountMode
from mirage.workspace.cache import LRUCache
from mirage.workspace.consistency import ConsistencyPolicy, is_fresh
from mirage.workspace.mount import MountRegistry
from mirage.workspace.sync import DirtyTracker, Inode, SyncPolicy, SyncResult

class TransferStats(BaseModel):
    bytes_read: int = 0
    bytes_written: int = 0
    read_ops: int = 0
    write_ops: int = 0
    cache_hits: int = 0
    cache_misses: int = 0
    total_read_ms: int = 0
    total_write_ms: int = 0

class _PathLock:


The file /Users/agent/strukto/mirage/mirage/workspace/workspace.py has been updated successfully.

from pydantic import BaseModel

from mirage.types import FileStat, MountMode
from mirage.workspace.cache import LRUCache
from mirage.workspace.consistency import ConsistencyPolicy, is_fresh
from mirage.workspace.mount import MountRegistry
from mirage.workspace.sync import DirtyTracker, Inode, SyncPolicy, SyncResult

class TransferStats(BaseModel):
    bytes_read: int = 0
    bytes_written: int = 0
    read_ops: int = 0
    write_ops: int = 0
    cache_hits: int = 0
    cache_misses: int = 0
    total_read_ms: int = 0
    total_write_ms: int = 0

class _PathLock:

from __future__ import annotations

import time

from mirage.backend.base import BaseBackend
from mirage.backend.filetype import guess_type
from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)
from mirage.workspace.cache import LRUCache
from mirage.workspace.consistency import ConsistencyPolicy, is_fresh
from mirage.workspace.mount import MountRegistry
from mirage.workspace.sync import DirtyTracker, SyncPolicy

class _PathLock:

    def __init__(self, ws: Workspace, paths: list[str]) -> None:
        self._ws = ws
        self._paths = paths

    def __enter__(self) -> _PathLock:
        return self

    def __exit__(self, *_: object) -> None:
        self._ws.unlock_paths(self._paths)

class Workspace:
    """
    Unified virtual filesystem over heterogeneous backends.

    Mounts backends at virtual path prefixes and provides a command-level API
    (cat, ls, write, cp, mv, rm, ...) with transparent caching
    and write staging.

    Example::

        ws = Workspace(
            {"/data/": S3Backend(S3Config(bucket="my-bucket")),
             "/tmp/":  MemoryBackend()},
            cache_limit="256MB",
            sync_policy=SyncPolicy.STAGED,
        )
        content = ws.cat("/data/reports/q1.json")
        ws.write("/tmp/summary.txt", b"hello")
        ws.sync()
    """

    def __init__(
        self,
        backends: dict[str, BaseBackend | tuple],
        cache_limit: str | int = "512MB",
        sync_policy: SyncPolicy = SyncPolicy.STAGED,
        mode: MountMode = MountMode.READ,
        consistency: ConsistencyPolicy = ConsistencyPolicy.CACHED,
        ttl_seconds: int = 300,
    ) -> None:
        self._registry = MountRegistry()
        self._cache = LRUCache(cache_limit)
        self._tracker = DirtyTracker()
        self._sync_policy = sync_policy
        self._ttl_seconds = ttl_seconds
        self._locked_paths: set[str] = set()
        self._transfer_stats: dict[str, TransferStats] = {}

        for prefix, value in backends.items():
            if isinstance(value, tuple) and len(value) == 3:
                backend, mount_mode, mount_consistency = value
            elif isinstance(value, tuple):
                backend, mount_mode = value
                mount_consistency = consistency
            else:
                backend = value
                mount_mode = mode
                mount_consistency = consistency
            self._registry.mount(prefix, backend, mount_mode,
                                 mount_consistency)

    # ── mount management ────────────────────────────────────────────────────

    def mount(
            self,
            prefix: str,
            backend: BaseBackend,
            mode: MountMode = MountMode.READ,
            consistency: ConsistencyPolicy = ConsistencyPolicy.CACHED) -> None:
        self._registry.mount(prefix, backend, mode, consistency)

    def backend(self, path: str) -> BaseBackend:
        backend, _, _ = self._registry.resolve(path)
        return backend

    # ── read ops ────────────────────────────────────────────────────────────

    def cat(self, path: str) -> bytes:
        inode = self._tracker.get(path)
        if inode and inode.dirty:
            entry = self._cache.get(path)
            if entry is not None:
                self._record_transfer(path,
                                      "read",
                                      len(entry.data),
                                      0,
                                      cache_hit=True)
                return entry.data

        entry = self._cache.get(path)
        remote_stat = None
        if entry is not None:
            consistency = self._registry.mount_for(path).consistency
            backend, bp, _ = self._registry.resolve(path)
            fresh, remote_stat = is_fresh(entry, consistency,
                                          self._ttl_seconds, backend, bp)
            if fresh:
                self._record_transfer(path,
                                      "read",
                                      len(entry.data),
                                      0,
                                      cache_hit=True)
                return entry.data
        else:
            backend, bp, _ = self._registry.resolve(path)

        t0 = time.monotonic()
        data = backend.cat(bp)
        duration_ms = int((time.monotonic() - t0) * 1000)
        self._record_transfer(path,
                              "read",
                              len(data),
                              duration_ms,
                              cache_hit=False)
        if remote_stat is None:
            remote_stat = backend.stat(bp)
        self._cache.put(path,
                        data,
                        etag=remote_stat.extra.get("etag"),
                        modified=remote_stat.modified,
                        size=remote_stat.size)
        self._tracker.on_read(path, data, self._mount_prefix(path))
        return data

    def ls(self, path: str) -> list[str]:
        backend, bp, _ = self._registry.resolve(path)
        prefix = self._mount_prefix(path).rstrip("/")
        backend_ok = False
        try:
            backend_entries = backend.ls(bp)
            backend_ok = True
        except FileNotFoundError:
            backend_entries = []
        result: set[str] = {
            prefix + "/" + e.lstrip("/")
            for e in backend_entries
        }
        norm_path = "/" + path.strip("/")
        dir_prefix = norm_path.rstrip("/") + "/"
        has_staged_children = False
        for inode in self._tracker.dirty():
            vp = inode.virtual_path
            if not vp.startswith(dir_prefix):
                continue
            if inode.checksum is None:
                result.discard(vp)
                continue
            has_staged_children = True
            remainder = vp[len(dir_prefix):]
            first = remainder.split("/")[0]
            if not first:
                continue
            if "/" in remainder:
                result.add(dir_prefix + first + "/")
            else:
                result.add(dir_prefix + first)
        if not backend_ok and not has_staged_children:
            raise FileNotFoundError(path)
        return sorted(result)

    def ls_l(self, path: str) -> list[FileStat]:
        backend, bp, _ = self._registry.resolve(path)
        return backend.ls_l(bp)

    def stat(self, path: str) -> FileStat:
        inode = self._tracker.get(path)
        if inode and inode.dirty and inode.checksum is not None:
            entry = self._cache.get(path)
            size = len(entry.data) if entry is not None else inode.size
            return FileStat(
                name=path.rstrip("/").rsplit("/", 1)[-1],
                size=size,
                type=guess_type(path),
            )
        backend, bp, _ = self._registry.resolve(path)
        return backend.stat(bp)

    def exists(self, path: str) -> bool:
        try:
            self.stat(path)
            return True
        except (FileNotFoundError, ValueError):
            return False

    def head(self, path: str, lines: int = 10) -> bytes:
        backend, bp, _ = self._registry.resolve(path)
        return backend.head(bp, lines)

    def tail(self, path: str, lines: int = 10) -> bytes:
        backend, bp, _ = self._registry.resolve(path)
        return backend.tail(bp, lines)

    def read(self, path: str, offset: int, size: int) -> bytes:
        inode = self._tracker.get(path)
        if inode and inode.dirty:
            entry = self._cache.get(path)
            if entry is not None:
                return entry.data[offset:offset + size]

        entry = self._cache.get(path)
        remote_stat = None
        if entry is not None:
            consistency = self._registry.mount_for(path).consistency
            backend, bp, _ = self._registry.resolve(path)
            fresh, remote_stat = is_fresh(entry, consistency,
                                          self._ttl_seconds, backend, bp)
            if fresh:
                return entry.data[offset:offset + size]
        else:
            backend, bp, _ = self._registry.resolve(path)

        data = backend.cat(bp)
        if remote_stat is None:
            remote_stat = backend.stat(bp)
        self._cache.put(path,
                        data,
                        etag=remote_stat.extra.get("etag"),
                        modified=remote_stat.modified,
                        size=remote_stat.size)
        self._tracker.on_read(path, data, self._mount_prefix(path))
        return data[offset:offset + size]

    def grep(self, pattern: str, path: str) -> list[str]:
        backend, bp, _ = self._registry.resolve(path)
        return backend.grep(pattern, bp)

    # ── write ops ───────────────────────────────────────────────────────────

    def write(self, path: str, data: bytes) -> None:
        self._assert_not_locked(path)
        self._assert_writable(path)
        backend, bp, _ = self._registry.resolve(path)
        self._cache.put(path, data)
        self._tracker.on_write(path, data, self._mount_prefix(path))
        self._record_transfer(path, "write", len(data), 0)
        if self._sync_policy == SyncPolicy.IMMEDIATE:
            backend.put(bp, data)
            self._tracker.on_read(path, data, self._mount_prefix(path))

    def mkdir(self, path: str) -> None:
        self._assert_writable(path)
        backend, bp, _ = self._registry.resolve(path)
        backend.mkdir(bp)

    def rm(self, path: str) -> None:
        self._assert_writable(path)
        backend, bp, _ = self._registry.resolve(path)
        inode = self._tracker.get(path)
        staged_only = inode and inode.dirty and inode.remote_checksum is None
        if not staged_only:
            backend.unlink(bp)
        self._cache.invalidate(path)
        self._tracker.on_delete(path)

    def mv(self, src: str, dst: str) -> None:
        self._assert_writable(src)
        sb, sbp, _ = self._registry.resolve(src)
        db, dbp, _ = self._registry.resolve(dst)
        src_inode = self._tracker.get(src)
        staged_only = (src_inode and src_inode.dirty
                       and src_inode.remote_checksum is None)
        if staged_only:
            entry = self._cache.get(src)
            data = entry.data if entry else b""
            self._cache.put(dst, data)
            self._tracker.on_write(dst, data, self._mount_prefix(dst))
            self._cache.invalidate(src)
            self._tracker.on_delete(src)
        elif sb is db:
            sb.rename(sbp, dbp)
            self._cache.invalidate(src)
        else:
            data = sb.cat(sbp)
            db.put(dbp, data)
            sb.unlink(sbp)
            self._cache.invalidate(src)

    def cp(self, src: str, dst: str) -> None:
        self._assert_writable(dst)
        data = self.cat(src)
        db, dbp, _ = self._registry.resolve(dst)
        db.put(dbp, data)

    # ── sync lifecycle ──────────────────────────────────────────────────────

    def sync(self, path: str | None = None) -> list[SyncResult]:
        results: list[SyncResult] = []
        targets = [
            i for i in self._tracker.dirty()
            if path is None or i.virtual_path == path
        ]
        for inode in targets:
            backend, bp, _ = self._registry.resolve(inode.virtual_path)
            entry = self._cache.get(inode.virtual_path)
            data = entry.data if entry else None
            result = self._tracker.on_sync(inode.virtual_path, bp, data,
                                           backend)
            results.append(result)
        return results

    def status(self) -> list[Inode]:
        return self._tracker.status()

    def reset(self) -> None:
        self._tracker.reset()
        self._cache.clear()

    # ── path locking ─────────────────────────────────────────────────────────

    def _lock_path(self, path: str) -> None:
        self._locked_paths.add(path)

    def unlock_paths(self, paths: list[str]) -> None:
        for p in paths:
            self._locked_paths.discard(p)

    def lock_paths(self, paths: list[str]) -> _PathLock:
        for p in paths:
            self._lock_path(p)
        return _PathLock(self, paths)

    def _assert_not_locked(self, path: str) -> None:
        if path in self._locked_paths:
            raise PermissionError(
                f"path {path!r} is locked by remote execution")

    # ── helpers ─────────────────────────────────────────────────────────────

    def _mount_prefix(self, path: str) -> str:
        norm = "/" + path.strip("/")
        for m in self._registry.mounts():
            if norm == m.prefix.rstrip("/") or norm.startswith(m.prefix):
                return m.prefix
        return "/"

    def _assert_writable(self, path: str) -> None:
        _, _, mode = self._registry.resolve(path)
        if mode == MountMode.READ:
            raise PermissionError(f"mount at {path!r} is read-only")

    def _record_transfer(self,
                         path: str,
                         op: str,
                         nbytes: int,
                         duration_ms: int,
                         cache_hit: bool | None = None) -> None:
        prefix = self._mount_prefix(path)
        if prefix not in self._transfer_stats:
            self._transfer_stats[prefix] = TransferStats()
        stats = self._transfer_stats[prefix]
        if op == "read":
            stats.bytes_read += nbytes
            stats.read_ops += 1
            stats.total_read_ms += duration_ms
            if cache_hit is True:
                stats.cache_hits += 1
            elif cache_hit is False:
                stats.cache_misses += 1
        elif op == "write":
            stats.bytes_written += nbytes
            stats.write_ops += 1
            stats.total_write_ms += duration_ms

-from mirage.types import (FileStat, Inode, MountMode, SyncResult, TransferStats)

-from mirage.workspace.sync import DirtyTracker, SyncPolicy

+from mirage.workspace.sync import DirtyTracker, Inode, SyncPolicy, SyncResult


TodoWrite

Create commands/types.py with CostLevel, FilePayload, RemoteCommandOptions, CommandResult

Move Inode + SyncResult to workspace/sync.py

Moving Inode + SyncResult to workspace/sync.py

Move TransferStats to workspace/workspace.py

Moving TransferStats to workspace/workspace.py

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable

Create commands/types.py with CostLevel, FilePayload, RemoteCommandOptions, CommandResult

Move Inode + SyncResult to workspace/sync.py

Move TransferStats to workspace/workspace.py

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


**Move `BackendType` to `cli/config.py`:**


     1→import os
     2→
     3→import yaml
     4→
     5→from mirage.backend.base import BaseBackend
     6→from mirage.backend.local.local import LocalBackend
     7→from mirage.backend.local.memory import MemoryBackend
     8→from mirage.types import BackendType, MountMode
     9→from mirage.workspace.consistency import ConsistencyPolicy
    10→
    11→
    12→def _build_backend(type_name: str, connection: str) -> BaseBackend:
    13→    if type_name == BackendType.MEMORY:
    14→        return MemoryBackend()
    15→    if type_name == BackendType.LOCAL:
    16→        return LocalBackend(root=os.path.abspath(connection))
    17→    if type_name == BackendType.S3:
    18→        from mirage.backend.object_storage.s3 import S3Backend, S3Config
    19→        rest = connection[len("s3://"):]
    20→        bucket = rest.split("/", 1)[0]

<system-reminder>
Whenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.
</system-reminder>

import os

import yaml

from mirage.backend.base import BaseBackend
from mirage.backend.local.local import LocalBackend
from mirage.backend.local.memory import MemoryBackend
from mirage.types import BackendType, MountMode
from mirage.workspace.consistency import ConsistencyPolicy

def _build_backend(type_name: str, connection: str) -> BaseBackend:
    if type_name == BackendType.MEMORY:
        return MemoryBackend()
    if type_name == BackendType.LOCAL:
        return LocalBackend(root=os.path.abspath(connection))
    if type_name == BackendType.S3:
        from mirage.backend.object_storage.s3 import S3Backend, S3Config
        rest = connection[len("s3://"):]
        bucket = rest.split("/", 1)[0]


Edit

from mirage.backend.base import BaseBackend
from mirage.backend.local.local import LocalBackend
from mirage.backend.local.memory import MemoryBackend
from mirage.types import BackendType, MountMode
from mirage.workspace.consistency import ConsistencyPolicy

from enum import Enum

from mirage.backend.base import BaseBackend
from mirage.backend.local.local import LocalBackend
from mirage.backend.local.memory import MemoryBackend
from mirage.types import MountMode
from mirage.workspace.consistency import ConsistencyPolicy

class BackendType(str, Enum):
    MEMORY = "memory"
    LOCAL = "local"
    S3 = "s3"
    R2 = "r2"
    HTTP = "http"
    HTTPS = "https"


The file /Users/agent/strukto/mirage/mirage/cli/config.py has been updated successfully.

from enum import Enum

from mirage.backend.base import BaseBackend
from mirage.backend.local.local import LocalBackend
from mirage.backend.local.memory import MemoryBackend
from mirage.types import MountMode
from mirage.workspace.consistency import ConsistencyPolicy

class BackendType(str, Enum):
    MEMORY = "memory"
    LOCAL = "local"
    S3 = "s3"
    R2 = "r2"
    HTTP = "http"
    HTTPS = "https"

import os

import yaml

from mirage.backend.base import BaseBackend
from mirage.backend.local.local import LocalBackend
from mirage.backend.local.memory import MemoryBackend
from mirage.types import BackendType, MountMode
from mirage.workspace.consistency import ConsistencyPolicy

def _build_backend(type_name: str, connection: str) -> BaseBackend:
    if type_name == BackendType.MEMORY:
        return MemoryBackend()
    if type_name == BackendType.LOCAL:
        return LocalBackend(root=os.path.abspath(connection))
    if type_name == BackendType.S3:
        from mirage.backend.object_storage.s3 import S3Backend, S3Config
        rest = connection[len("s3://"):]
        bucket = rest.split("/", 1)[0]
        return S3Backend(S3Config(bucket=bucket))
    if type_name == BackendType.R2:
        from mirage.backend.object_storage.r2 import R2Backend, R2Config
        rest = connection[len("r2://"):]
        parts = rest.split("/", 1)
        return R2Backend(
            R2Config(
                account_id=parts[0],
                bucket=parts[1] if len(parts) > 1 else "",
                access_key_id=os.environ.get("R2_ACCESS_KEY_ID", ""),
                secret_access_key=os.environ.get("R2_SECRET_ACCESS_KEY", ""),
            ))
    if type_name in (BackendType.HTTP, BackendType.HTTPS):
        from mirage.backend.network.http import HTTPBackend, HTTPConfig
        return HTTPBackend(HTTPConfig(base_url=connection))
    raise ValueError(f"Unknown backend type: {type_name!r}. "
                     "Use built-ins: memory, local, s3, r2, http")

def parse_mount_uri(uri: str) -> BaseBackend:
    if uri == BackendType.MEMORY:
        return MemoryBackend()
    if uri == BackendType.LOCAL:
        return LocalBackend(root=os.path.abspath("."))

    colon = uri.find(":")
    if colon > 0 and "//" not in uri[:colon + 3]:
        return _build_backend(uri[:colon], uri[colon + 1:])

    if uri.startswith("s3://"):
        return _build_backend("s3", uri)
    if uri.startswith("r2://"):
        return _build_backend("r2", uri)
    if uri.startswith("http://") or uri.startswith("https://"):
        return _build_backend("http", uri)

    if "://" in uri:
        scheme = uri.split("://")[0]
        raise ValueError(
            f"Unknown URI scheme {scheme!r}. "
            "Accepted: s3://, r2://, https://. "
            "For simple backends use: memory, local, local:./path")
    return LocalBackend(root=os.path.abspath(uri))

def split_mount_spec(spec: str) -> tuple[str, str]:
    """Split 'backend:/path' into (backend, path).

    Args:
        spec (str): Mount spec like 'memory:/data/' or 's3://bucket:/data/'.

    Returns:
        tuple[str, str]: (backend, mount_path) pair.
    """
    i = len(spec) - 1
    while i >= 0:
        if spec[i] == ":" and i + 1 < len(spec) and spec[i + 1] == "/":
            if i >= 2 and spec[i - 1:i + 2] == "://":
                i -= 1
                continue
            return spec[:i], spec[i + 1:]
        i -= 1
    raise ValueError(
        f"Invalid mount spec: {spec!r}. "
        "Use format: backend:/path (e.g. memory:/data/, s3://bucket:/)")

_MODE_SUFFIXES = ("@read", "@write", "@exec")

def parse_mount_uri_with_mode(
    uri: str,
    default_mode: MountMode = MountMode.READ,
) -> tuple[BaseBackend, MountMode]:
    for suffix in _MODE_SUFFIXES:
        if uri.endswith(suffix):
            return parse_mount_uri(uri[:-len(suffix)]), MountMode(suffix[1:])
    return parse_mount_uri(uri), default_mode

_CONSISTENCY_SUFFIXES = ("#cached", "#lazy", "#ttl", "#always")

def parse_mount_uri_full(
    uri: str,
    default_mode: MountMode = MountMode.READ,
    default_consistency: ConsistencyPolicy = ConsistencyPolicy.CACHED,
) -> tuple[BaseBackend, MountMode, ConsistencyPolicy]:
    consistency = default_consistency
    for suffix in _CONSISTENCY_SUFFIXES:
        if uri.endswith(suffix):
            consistency = ConsistencyPolicy(suffix[1:])
            uri = uri[:-len(suffix)]
            break
    backend, mode = parse_mount_uri_with_mode(uri, default_mode)
    return backend, mode, consistency

def parse_mounts_from_cli(
    mount_specs: list[str],
    default_mode: MountMode = MountMode.READ,
) -> dict[str, BaseBackend | tuple[BaseBackend, MountMode]]:
    mounts: dict[str, BaseBackend | tuple[BaseBackend, MountMode]] = {}
    for spec in mount_specs:
        uri, prefix = split_mount_spec(spec)
        backend, mode = parse_mount_uri_with_mode(uri, default_mode)
        if mode != default_mode:
            mounts[prefix] = (backend, mode)
        else:
            mounts[prefix] = backend
    return mounts

def load_yaml_config(path: str) -> dict:
    with open(path) as f:
        return yaml.safe_load(f)

def load_workspace_yaml(path: str) -> dict:
    with open(path) as f:
        data = yaml.safe_load(f)
    mounts_raw = data.get("mounts", {})
    mounts: dict[str, str | dict] = {}
    for prefix, value in mounts_raw.items():
        if isinstance(value, str):
            mounts[prefix] = value
        elif isinstance(value, dict):
            backend_spec = value.get("backend")
            if backend_spec:
                entry: dict[str, str | dict] = {"backend": backend_spec}
                if value.get("args"):
                    entry["args"] = value["args"]
                if value.get("mode"):
                    entry["mode"] = value["mode"]
                if value.get("consistency"):
                    entry["consistency"] = value["consistency"]
                mounts[prefix] = entry
            else:
                uri = value.get("uri", "")
                mount_mode = value.get("mode")
                mount_consistency = value.get("consistency")
                entry_uri: dict[str, str] = {"uri": uri}
                if mount_mode:
                    entry_uri["mode"] = mount_mode
                if mount_consistency:
                    entry_uri["consistency"] = mount_consistency
                if len(entry_uri) == 1:
                    mounts[prefix] = uri
                else:
                    mounts[prefix] = entry_uri
    result: dict = {"mounts": mounts, "commands": data.get("commands", {})}
    if "consistency" in data:
        result["consistency"] = data["consistency"]
    if "ttl" in data:
        result["ttl"] = data["ttl"]
    if "agent_id" in data:
        result["agent_id"] = data["agent_id"]
    fuse_ops = data.get("fuse_ops", {})
    if fuse_ops:
        result["fuse_ops"] = fuse_ops
    for key in ("runtime", "url", "ws_id", "command_url", "fuse_ops_url"):
        if key in data:
            result[key] = data[key]
    return result

-from mirage.types import BackendType, MountMode


TodoWrite

Create commands/types.py with CostLevel, FilePayload, RemoteCommandOptions, CommandResult

Move Inode + SyncResult to workspace/sync.py

Moving Inode + SyncResult to workspace/sync.py

Move TransferStats to workspace/workspace.py

Moving TransferStats to workspace/workspace.py

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass

Move BackendType to cli/config.py

Update all import sites and types.py

Verify tests pass


Now update all internal mirage modules that still import from `types.py`:


Edit

from mirage.commands.types import CostLevel