Codex CLI Core Functionality Failures
62This cluster highlights critical and widespread functionality issues with the Codex CLI, encompassing problems from installation (e.g., missing binaries) to core execution failures across various operating systems. Users are also encountering misleading error messages and specific integration failures, which collectively prevent them from effectively using the tool as intended.
What people are actually saying
Error running remote compact task
github.comcodex mcp login fails for Slack official MCP with `Dynamic client registration not supported`
github.comrg is blocked by macOS
github.comGPT-5.5 tool calls fail with "unsupported call: exec_commandexec_command" — model sends self-referential namespace on built-in tool calls
github.comgpt-5.5 tool calling regression
github.com
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