Operator-ready prompt for reuse, tuning, and workspace runs.
This item is set up for developers who want to inspect the original language, fork it into Workspace, and adapt the evidence model without losing the source prompt structure.
Implementation handoffs, eval setup, and prompt tuning where you need the original structure intact.
Inspect first, copy once, then fork into Workspace when you want variants, notes, and model settings attached to the same run.
Swap domain facts, examples, and any hard-coded entities for your own context.
Tighten the evidence or verification requirement if this is headed toward production.
Decide which failure mode you want to evaluate first before you branch the prompt.
This prompt already carries implementation detail, tool context, and a final-output instruction. Keep that structure intact when you tune it, or your comparison runs get noisy fast.
Open this prompt inside Workspace when you want a live iteration loop.
Copy for quick reuse, or run it in Workspace to keep prompt variants, model settings, and prompt-history changes in one place.
Structured source with 1 active lines to adapt.
Already linked to a challenge workflow.
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Prompt content
Original prompt text with formatting preserved for inspection and clean copy.
Create a custom tool for your OpenAI agent that can execute Python code in a sandboxed environment and return the results, including standard output and any errors. This tool should also be capable of running a set of predefined unit tests against the generated code. Show how to integrate this tool into your OpenAI Agents SDK agent using the `tool_resources` and `function_calling` features. Provide a Python snippet demonstrating the tool definition and how the agent would invoke it.
Adaptation plan
Keep the source stable, then branch your edits in a predictable order so the next prompt run is easier to evaluate.
Hold the task contract and output shape stable so generated implementations remain comparable.
Update libraries, interfaces, and environment assumptions to match the stack you actually run.
Test failure handling, edge cases, and any code paths that depend on hidden context or secrets.
Copy once for a pristine source snapshot, then move the prompt into Workspace when you want variants, run history, and side-by-side tuning without losing the original.
Prompt diagnostics
Quick signals for how structured this prompt already is and where adaptation work is likely to happen first.
This prompt is mostly narrative and instruction-driven, so you can adapt examples and output constraints first without disturbing the structure.
Self-Improving GPT-5.3-Codex Agent for Code Generation & Refinement
Build a self-improving agent using the OpenAI Agents SDK, leveraging GPT-5.3-Codex's advanced code generation and reasoning capabilities. Inspired by OpenAI's claim of a model instrumental in creating itself, this challenge focuses on an agent that can autonomously generate code solutions for a given problem, then critically evaluate, test, and iteratively refine its own code to improve correctness, efficiency, and adherence to specified coding standards. The system should manage longer-running tasks, potentially involving multiple stages of generation, testing, and debugging, with robust observability and evaluation.
Use the challenge page to recover the original task boundaries before you tune the prompt. That keeps your variants grounded in the same evaluation target instead of drifting into a different problem.