26% context use from first message

Open 💬 3 comments Opened Feb 1, 2026 by cranyy

What version of Codex is running?

OpenAI Codex (v0.93.0)

What subscription do you have?

Pro

Which model were you using?

gpt-5.1-codex-mini medium

What platform is your computer?

_No response_

What terminal emulator and version are you using (if applicable)?

_No response_

What issue are you seeing?

On literal first message, even with complete lack of a global AGENTS.md, in a completely empty folder, with zero context, with all skills deleted. The first message even if its Hi takes 26% of the context immediately leaving us with 74% EVEN with gpt-5.1-codex-mini medium. This literally never happened before (last i used was .91) and I havent changed any mcps or any skills or anything for MONTHS now. If its an issue on my end, what could it possible be?

╭─────────────────────────────────────────────────────────╮
│ >_ OpenAI Codex (v0.93.0)                               │
│                                                         │
│ model:     gpt-5.1-codex-mini medium   /model to change │
│ directory: /mnt/e/empty                                 │
╰─────────────────────────────────────────────────────────╯

  Tip: You can run any shell command from Codex using ! (e.g. !ls)

⚠ MCP client for `CodeGraphContext` failed to start: MCP startup failed: handshaking with MCP server failed: connection closed: initialize response

⚠ MCP startup incomplete (failed: CodeGraphContext)


› Implement {feature}

  ? for shortcuts                                                                                                                                                                                                                                                    

100% context left

and we say hi:


╭─────────────────────────────────────────────────────────╮
│ >_ OpenAI Codex (v0.93.0)                               │
│                                                         │
│ model:     gpt-5.1-codex-mini medium   /model to change │
│ directory: /mnt/e/empty                                 │
╰─────────────────────────────────────────────────────────╯

  Tip: You can run any shell command from Codex using ! (e.g. !ls)

⚠ MCP client for `CodeGraphContext` failed to start: MCP startup failed: handshaking with MCP server failed: connection closed: initialize response

⚠ MCP startup incomplete (failed: CodeGraphContext)


› hi


• 👋 Hi there! How can I help you today?


› Implement {feature}

  ? for shortcuts                                                                                                                                                                                                                                                     

74% context left



thread ID 019c178e-79dd-7770-b777-93c597386f2e

What steps can reproduce the bug?

Say hi to codex.

What is the expected behavior?

_No response_

Additional information

_No response_

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