app/features.md Codex Docs, 2026-03-04 18:18 UTC → 2026-03-07 18:10 UTC

14session in a specific directory.14session in a specific directory.

15 15 

16If you work in a single repository with two or more apps or packages, split16If you work in a single repository with two or more apps or packages, split

17distinct projects into separate app projects so the [sandbox](https://developers.openai.com/codex/security)17distinct projects into separate app projects so the [sandbox](https://developers.openai.com/codex/agent-approvals-security)

18only includes the files for that project.18only includes the files for that project.

19 19 

20![Codex app showing multiple projects in the sidebar and threads in the main pane](/images/codex/app/multitask-light.webp)20![Codex app showing multiple projects in the sidebar and threads in the main pane](/images/codex/app/multitask-light.webp)

162opening separate projects or using worktrees rather than asking Codex to roam162opening separate projects or using worktrees rather than asking Codex to roam

163outside the project root.163outside the project root.

164 164 

165For details on how Codex handles sandboxing, check out the [security documentation](https://developers.openai.com/codex/security).165For a high-level overview, see [Sandboxing](https://developers.openai.com/codex/concepts/sandboxing). For

166configuration details, see the

167[agent approvals & security documentation](https://developers.openai.com/codex/agent-approvals-security).

166 168 

167## MCP support169## MCP support

168 170 

175 177 

176Codex ships with a first-party web search tool. For local tasks in the Codex IDE Extension, Codex178Codex ships with a first-party web search tool. For local tasks in the Codex IDE Extension, Codex

177enables web search by default and serves results from a web search cache. If you configure your179enables web search by default and serves results from a web search cache. If you configure your

178sandbox for [full access](https://developers.openai.com/codex/security), web search defaults to live results. See180sandbox for [full access](https://developers.openai.com/codex/agent-approvals-security), web search defaults to live results. See

179[Config basics](https://developers.openai.com/codex/config-basic) to disable web search or switch to live results that fetch the181[Config basics](https://developers.openai.com/codex/config-basic) to disable web search or switch to live results that fetch the

180most recent data.182most recent data.

181 183