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Michael Bolin 1a220ad77d
chore: move config diagnostics out of codex-core (#12427) 
## Why

Compiling `codex-rs/core` is a bottleneck for local iteration, so this
change continues the ongoing extraction of config-related functionality
out of `codex-core` and into `codex-config`.

The goal is not just to move code, but to reduce `codex-core` ownership
and indirection so more code depends on `codex-config` directly.

## What Changed

- Moved config diagnostics logic from
`core/src/config_loader/diagnostics.rs` into
`config/src/diagnostics.rs`.
- Updated `codex-core` to use `codex-config` diagnostics types/functions
directly where possible.
- Removed the `core/src/config_loader/diagnostics.rs` shim module
entirely; the remaining `ConfigToml`-specific calls are in
`core/src/config_loader/mod.rs`.
- Moved `CONFIG_TOML_FILE` into `codex-config` and updated existing
references to use `codex_config::CONFIG_TOML_FILE` directly.
- Added a direct `codex-config` dependency to `codex-cli` for its
`CONFIG_TOML_FILE` use.
2026-02-20 23:19:29 -08:00
..
src chore: move config diagnostics out of codex-core (#12427) 2026-02-20 23:19:29 -08:00
templates memories: add rollout_summary_file header to raw memories and tune prompts (#12221) 2026-02-20 09:13:35 +00:00
tests chore: move config diagnostics out of codex-core (#12427) 2026-02-20 23:19:29 -08:00
BUILD.bazel Add feature-gated freeform js_repl core runtime (#10674) 2026-02-11 12:05:02 -08:00
build.rs fix: System skills marker includes nested folders recursively (#10350) 2026-02-01 18:17:32 -08:00
Cargo.toml chore: move config diagnostics out of codex-core (#12427) 2026-02-20 23:19:29 -08:00
config.schema.json Add experimental realtime websocket backend prompt override (#12418) 2026-02-20 20:10:51 -08:00
gpt-5.1-codex-max_prompt.md Assemble sandbox/approval/network prompts dynamically (#8961) 2026-01-12 23:12:59 +00:00
gpt-5.2-codex_prompt.md Assemble sandbox/approval/network prompts dynamically (#8961) 2026-01-12 23:12:59 +00:00
gpt_5_1_prompt.md Assemble sandbox/approval/network prompts dynamically (#8961) 2026-01-12 23:12:59 +00:00
gpt_5_2_prompt.md Assemble sandbox/approval/network prompts dynamically (#8961) 2026-01-12 23:12:59 +00:00
gpt_5_codex_prompt.md Assemble sandbox/approval/network prompts dynamically (#8961) 2026-01-12 23:12:59 +00:00
hierarchical_agents_message.md Add hierarchical agent prompt (#8996) 2026-01-09 13:47:37 -08:00
models.json Update models.json (#11376) 2026-02-10 17:25:35 -08:00
prompt.md Assemble sandbox/approval/network prompts dynamically (#8961) 2026-01-12 23:12:59 +00:00
prompt_with_apply_patch_instructions.md Assemble sandbox/approval/network prompts dynamically (#8961) 2026-01-12 23:12:59 +00:00
README.md [feat] add seatbelt permission files (#11639) 2026-02-12 23:30:22 +00:00
review_prompt.md docs: Fix markdown list item spacing in codex-rs/core/review_prompt.md (#4144) 2025-10-30 17:39:21 -07:00

README.md

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 supports macOS permission-profile extensions layered on top of SandboxPolicy:

  • no extension profile provided: keeps legacy default preferences read access (user-preference-read).
  • extension profile provided with no macos_preferences grant: does not add preferences access clauses.
  • macos_preferences = "readonly": enables cfprefs read clauses and user-preference-read.
  • macos_preferences = "readwrite": includes readonly clauses plus user-preference-write and cfprefs shm write clauses.
  • macos_automation = true: enables broad Apple Events send permissions.
  • macos_automation = ["com.apple.Notes", ...]: enables Apple Events send only to listed bundle IDs.
  • macos_accessibility = true: enables com.apple.axserver mach lookup.
  • macos_calendar = true: enables com.apple.CalendarAgent mach lookup.

Linux

Expects the binary containing codex-core to run the equivalent of codex sandbox linux (legacy alias: codex debug landlock) when arg0 is codex-linux-sandbox. See the codex-arg0 crate for details.

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.