Single tool 'codex-exec' has a generic name that violates verb_noun convention and lacks clarity about what 'Codex' commands do. Description is adequate (89 chars) but parameters lack individual descriptions, 'command' and 'args' are undescribed, violating the requirement that every parameter needs a description explaining what it controls. Input schema is present but incomplete: 'args' is typed as array with no item type, and 'timeoutMs' lacks constraints (min/max). No output schema documented. No error handling guidance. Tool appears to be a thin wrapper around an external CLI, which is a composition smell, the tool conflates multiple Codex subcommands (review, do, consult) into one generic executor rather than splitting them into focused tools.

• Rename and split 'codex-exec' into three focused tools: 'review_code' (for code review), 'delegate_task' (for task delegation), 'consult_codex' (for consultation). Each should have a clear verb_noun name and specific parameters.
• Add descriptions to all parameters: 'command' should document valid values (review|do|consult); 'args' should describe the array of command-line arguments; 'timeoutMs' should specify the range (e.g., 1000 - 300000 milliseconds).
• Document the output schema explicitly. Specify what fields are returned (e.g., success: boolean, output: string, exitCode: number, stderr?: string) so LLMs know what to expect.
• Add error handling guidance: describe what errors can occur (timeout, invalid command, Codex CLI not found) and what the LLM should do next (retry, check installation, provide feedback to user).
• Consider adding a 'dry_run' parameter to review_code and delegate_task to support confirmation workflows before executing irreversible operations.