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codex/codex-rs/core
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Eric Ning e929bb5c88 [codex] Update remote connector suggestions (#25172)
## Summary

- Use the session-loaded plugin app IDs as the source of connector
suggestion candidates.
- Remove the redundant plugin reload from
`tool_suggest_connector_ids()`.
- Add regression coverage for connectors declared by a loaded remote
plugin, using the Databricks app case.

## Context

Loaded remote plugins can declare app connector IDs in `.app.json`. The
session-owned `PluginsManager` already loads those plugins and exposes
their effective app IDs.

The connector suggestion path was creating a separate `PluginsManager`
and recomputing plugin app IDs. That new manager does not share the
session manager’s remote installed plugin cache, so app IDs from loaded
remote plugins were missing from connector suggestions.

## Fix

Pass the already-loaded effective app IDs into connector suggestion
generation and use them directly as the plugin-derived connector
candidate set.

Connector candidates are now built from:

- App IDs declared by loaded plugins
- Explicitly configured connector discoverables
- Existing disabled-suggestion filtering

This avoids a second plugin-manager lookup and keeps connector
suggestions aligned with the plugins actually loaded for the turn.

## Behavior

For example, when a plugin is loaded and its `.app.json` declares data
apps, `list_available_plugins_to_install` can now return those data
connectors.

This does not create plugin suggestions from the plugin itself. Plugin
suggestions still come from eligible uninstalled entries in the
marketplace catalog and require existing matching/filtering rules.

## Validation

- `just fmt`
- Added regression coverage for a loaded-plugin connector ID appearing
in discoverable tools
- Attempted `just test -p codex-core`; the command exited unsuccessfully
in the local test environment without useful failure detail captured in
the run output
e929bb5c88 · 2026-05-29 17:57:34 -07:00
History
..

codex-core

This crate implements the business logic for Codex. It is designed to be used by the various Codex UIs written in Rust.

Dependencies

Note that codex-core makes some assumptions about certain helper utilities being available in the environment. Currently, this support matrix is:

macOS

Expects /usr/bin/sandbox-exec to be present.

When using the workspace-write sandbox policy, the Seatbelt profile allows writes under the configured writable roots while keeping .git (directory or pointer file), the resolved gitdir: target, and .codex read-only.

Network access and filesystem read/write roots are controlled by SandboxPolicy. Seatbelt consumes the resolved policy and enforces it.

Seatbelt also keeps the legacy default preferences read access (user-preference-read) needed for cfprefs-backed macOS behavior.

Linux

Expects the binary containing codex-core to run the equivalent of codex sandbox when arg0 is codex-linux-sandbox. See the codex-arg0 crate for details.

Legacy SandboxPolicy / sandbox_mode configs are still supported on Linux. They can continue to use the legacy Landlock path when the split filesystem policy is sandbox-equivalent to the legacy model after cwd resolution. Split filesystem policies that need direct FileSystemSandboxPolicy enforcement, such as read-only or denied carveouts under a broader writable root, automatically route through bubblewrap. The legacy Landlock path is used only when the split filesystem policy round-trips through the legacy SandboxPolicy model without changing semantics. That includes overlapping cases like /repo = write, /repo/a = none, /repo/a/b = write, where the more specific writable child must reopen under a denied parent.

The Linux sandbox helper prefers the first bwrap found on PATH outside the current working directory whenever it is available. If bwrap is present but too old to support --argv0, the helper keeps using system bubblewrap and switches to a no---argv0 compatibility path for the inner re-exec. If bwrap is missing, it falls back to the bundled codex-resources/bwrap binary shipped with Codex and Codex surfaces a startup warning through its normal notification path instead of printing directly from the sandbox helper. Codex also surfaces a startup warning when bubblewrap cannot create user namespaces. WSL2 uses the normal Linux bubblewrap path. WSL1 is not supported for bubblewrap sandboxing because it cannot create the required user namespaces, so Codex rejects sandboxed shell commands that would enter the bubblewrap path before invoking bwrap.

Windows

Legacy SandboxPolicy / sandbox_mode configs are still supported on Windows. Legacy read-only and workspace-write policies imply full filesystem read access; exact readable roots are represented by split filesystem policies instead.

The elevated Windows sandbox also supports:

  • legacy ReadOnly and WorkspaceWrite behavior
  • split filesystem policies that need exact readable roots, exact writable roots, or extra read-only carveouts under writable roots
  • backend-managed system read roots required for basic execution, such as C:\Windows, C:\Program Files, C:\Program Files (x86), and C:\ProgramData, when a split filesystem policy requests platform defaults

The unelevated restricted-token backend still supports the legacy full-read Windows model for legacy ReadOnly and WorkspaceWrite behavior. It also supports a narrow split-filesystem subset: full-read split policies whose writable roots still match the legacy WorkspaceWrite root set, but add extra read-only carveouts under those writable roots.

New [permissions] / split filesystem policies remain supported on Windows only when they can be enforced directly by the selected Windows backend or round-trip through the legacy SandboxPolicy model without changing semantics. Policies that would require direct explicit unreadable carveouts (none) or reopened writable descendants under read-only carveouts still fail closed instead of running with weaker enforcement.

All Platforms

Expects the binary containing codex-core to simulate the virtual apply_patch CLI when arg1 is --codex-run-as-apply-patch. See the codex-arg0 crate for details.