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gt-oai f6df1596eb
Propagate MCP disabled reason (#9207) 
Indicate why MCP servers are disabled when they are disabled by
requirements:

```
➜  codex git:(main) ✗ just codex mcp list
cargo run --bin codex -- "$@"
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.27s
     Running `target/debug/codex mcp list`
Name         Command          Args  Env  Cwd  Status                                                                  Auth
docs         docs-mcp         -     -    -    disabled: requirements (MDM com.openai.codex:requirements_toml_base64)  Unsupported
hello_world  hello-world-mcp  -     -    -    disabled: requirements (MDM com.openai.codex:requirements_toml_base64)  Unsupported

➜  codex git:(main) ✗ just c
cargo run --bin codex -- "$@"
    Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.90s
     Running `target/debug/codex`
╭─────────────────────────────────────────────╮
│ >_ OpenAI Codex (v0.0.0)                    │
│                                             │
│ model:     gpt-5.2 xhigh   /model to change │
│ directory: ~/code/codex/codex-rs            │
╰─────────────────────────────────────────────╯

/mcp

🔌  MCP Tools

  • No MCP tools available.

  • docs (disabled)
    • Reason: requirements (MDM com.openai.codex:requirements_toml_base64)

  • hello_world (disabled)
    • Reason: requirements (MDM com.openai.codex:requirements_toml_base64)
```
2026-01-15 17:24:00 +00:00
..
src Propagate MCP disabled reason (#9207) 2026-01-15 17:24:00 +00:00
templates feat: add agent roles to collab tools (#9275) 2026-01-15 13:33:52 +00:00
tests Propagate MCP disabled reason (#9207) 2026-01-15 17:24:00 +00:00
BUILD.bazel add generated jsonschema for config.toml (#8956) 2026-01-13 10:22:51 -08:00
Cargo.toml add generated jsonschema for config.toml (#8956) 2026-01-13 10:22:51 -08:00
config.schema.json add WebSearchMode enum (#9216) 2026-01-14 12:51:42 -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 Add migration_markdown in model_info (#9219) 2026-01-15 01:55:22 +00:00
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 support for read-only bind mounts in the linux sandbox (#9112) 2026-01-14 08:30:46 -08:00
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.

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.