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How to compare REA agent setups before a reverse-engineering project with Awesome REA Cases

Use the LeanREA benchmark and related cases to choose between CLI and MCP for a coding agent.

  • Research
  • Intermediate
  • 30 minutes
  • From the README
  • Claude Code
  • Codex

Authorization notice. Awesome REA Cases is dual-use. Only use it on software, sites and systems you own or have explicit permission to test.

Reverse engineering. Any hands-on work on a target must use legally obtained software or hardware and respect its permissions.

Who it is forA developer about to point a coding agent at local reverse-engineering tools and unsure which interface to use.

The problemPicking CLI or MCP without evidence risks slower runs, higher cost, or lower accuracy on the actual task.

The outcomeA reasoned choice of interface, with the trade-offs in time, cost, and accuracy written down.

What you need first

  • A web browser to read the README, the category pages, and linked case pages
  • A legally obtained target device or software, with any needed permissions, for any hands-on work
  • Optional: a coding agent such as Claude Code or Codex for case-driven work

Steps

  1. Open the Full index linked from the README to see all cases in the Algorithms & feature recovery category (54 entries).
  2. Open the LeanREA case, the analysis test that compares direct CLI with MCP.
  3. Note the reported scores of 74/75 versus 75/75 and the lower time and cost, along with the stated single-model, single-machine limit.
  4. Decide which interface fits your task and record the reason before you start.

Prompt for your agent

Read the LeanREA case in the songshikang0111/awesome-REA-cases repo and summarize its CLI versus MCP comparison for <target task>. Output the reported scores, time, and cost, and state whether the result was independently rerun. Check that the limits (one model, one machine) are included in your summary.

Caveat. The LeanREA comparison comes from one model on one machine and was not independently rerun, so its results may not carry over to your setup.

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