Bug Report: kimi -S <session_id> Command Effectively Broken on Windows PowerShell

[JIANGHAOYU2018]

What version of Kimi Code is running?

0.11.0

Which open platform/subscription were you using?

Allegretto

Which model were you using?

kimi - k2.6

What platform is your computer?

win10/win11

What issue are you seeing?

On Windows PowerShell/CMD, the kimi -S <session_id> command fails to resume a session even when the user is physically in the correct working directory.

The error message suggests switching to a different directory:

Session "session_xxx" was created under a different directory.
  cd "D:/projects" && kimi -r session_xxx

error: failed to start shell: Session "session_xxx" was created under a different directory.

Root cause: session_index.jsonl stores workDir with forward slashes (D:/projects), while Windows GetCurrentDirectory() API returns backslashes (D:\projects). The session resumption logic uses strict string comparison, so the two values never match.

What steps can reproduce the bug?

1. Open PowerShell on Windows

2. Navigate to a working directory:

   cd D:\projects

3. Start a kimi session and then exit:

   kimi
   # ... do some work ...
   # exit

4. Try to resume the session by its exact ID:

   kimi -S session_915726a2-c3f9-4ef3-87df-00cc8c4d1e64

5. The command fails with "created under a different directory"

What is the expected behavior?

kimi -S <session_id> should successfully resume the session when the user is in the same physical directory, regardless of path separator differences (\ vs /).

Path comparison should be normalized before checking (e.g., using path.normalize() or replacing separators) rather than strict string equality.

Additional information

Bug Report: kimi -S <session_id> Command Effectively Broken on Windows PowerShell

Summary

On Windows, the `kimi -S <session_id>` command fails to resume a session even when the user is physically in the correct working directory. The failure is caused by a strict string comparison between the current working directory (returned by the Windows API with backslashes `\`) and the `workDir` stored in `session_index.jsonl` (which uses forward slashes `/`).

As a result, the command is **effectively unusable** for direct session resumption in standard Windows terminals (PowerShell, CMD).

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Environment

Item | Value -- | -- OS | Windows 10/11 Terminal | PowerShell / CMD / Windows Terminal kimi-code version | 0.11.0 Installation path | `C:\Users\\.kimi-code\bin\kimi.exe`

Severity

**High** — A core CLI command (`kimi -S <id>`) is effectively non-functional on the primary Windows shell.

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Suggested Fix

Use **canonicalized path comparison** instead of strict string comparison when validating the working directory during session resumption.

Option A: Normalize separators before comparison (Recommended)

Before comparing, normalize both paths by replacing all `\` with `/` (or vice versa), then compare:

// Pseudo-code
const normalizedCurrent = currentDir.replace(/\\/g, '/');
const normalizedStored = session.workDir.replace(/\\/g, '/');
if (normalizedCurrent !== normalizedStored) {
    throw "Different directory";
}

Option B: Use OS-native path comparison APIs

• **Node.js**: `path.normalize()` + `path.resolve()`

• **Rust**: `std::fs::canonicalize()` or `std::path::Path::canonicalize()`

These APIs handle separator differences, `.` / `..` segments, and other edge cases automatically.

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Additional Context

• The TUI welcome screen displays paths with forward slashes (`D:/projects/kimi_code`), which suggests kimi-code already normalizes paths for display. The same normalization should be applied to the comparison logic.

• This issue does **not** affect `kimi -S` (interactive mode without ID) or `kimi -C`, because those code paths do not enforce the directory check.

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Attachments

• `session_index.jsonl` excerpt:

  {"sessionId":"session_915726a2-c3f9-4ef3-87df-00cc8c4d1e64","sessionDir":"C:/Users/username/.kimi-code/sessions/wd_workspace_637bffea93b1/session_915726a2-c3f9-4ef3-87df-00cc8c4d1e64","workDir":"D:/projects"}