feat(posts): update "How to maximize Codex usage"

Post: 2026-04-29-maximize-codex-usage-limit.md

Add MCP

Author: remarkablemark

_posts/2026/2026-04-29-maximize-codex-usage-limit.md

@@ -2,21 +2,26 @@
 layout: post
 title: How to maximize Codex usage
 date: 2026-04-29 13:11:14
+updated: 2026-05-11 15:20:31
 excerpt: How to maximize your OpenAI Codex usage without going over the 5 hour window.
 categories: openai codex ai tui
 ---
 
-This post goes over how to maximize your [OpenAI Codex usage](https://chatgpt.com/codex/settings/usage) without going over the 5 hour window.
+This post goes over how to maximize your [OpenAI Codex usage](https://chatgpt.com/codex/settings/usage) so you don't go over the 5 hour window.
+
+- [Fast Mode](#fast-mode)
+- [MCP](#mcp)
+- [Model](#model)
 
 ## Problem
 
-If you're constantly hitting your 5 hour usage limit on Codex:
+You're constantly hitting the 5 hour usage limit on Codex:
 
 > ⚠ Heads up, you have less than 25% of your 5h limit left. Run /status for a breakdown.
 
 > ■ You've hit your usage limit. To get more access now, send a request to your admin or try again at Apr 20th, 2026 4:20 AM.
 
-Then try disabling fast mode and/or changing your model.
+Try disabling fast mode and unused MCPs as well as changing your model.
 
 ## Fast Mode
 
@@ -39,6 +44,35 @@ If you have `service_tier = "flex"` in `~/.codex/config.toml`, then delete it or
 service_tier = "flex"
 ```
 
+## MCP
+
+Disable unused [MCP](https://wikipedia.org/wiki/Model_Context_Protocol) servers by editing your config:
+
+```sh
+vim ~/.codex/config.toml
+```
+
+Search for `mcp_servers`. For example:
+
+```toml
+[mcp_servers.figma]
+url = "https://mcp.figma.com/mcp"
+```
+
+To disable it, comment it out or set `enabled = false`:
+
+```toml
+enabled = false
+```
+
+For example:
+
+```toml
+[mcp_servers.figma]
+url = "https://mcp.figma.com/mcp"
+enabled = false
+```
+
 ## Model
 
 If you're working on simpler coding tasks (e.g., writing tests), choose a smaller, faster, and more cost-efficient model like `gpt-*-mini`: