leanrea
One small skill file that has a coding agent reverse-engineer apps and binaries with command-line tools it can already run (otool, nm, jadx and similar), instead of loading an MCP server full of tools. The maker's own README benchmark compares it with the REA MCP server.
Test results
Run with our skill harness: the skill alone in a throwaway project, invoked by name, and the real output file checked. Skills are tested in Claude Code and Cursor only so far.
| Client | Result | Last passed | What we checked |
|---|---|---|---|
| Claude Code 2.1.296 (Claude Code) | Passed Tested 2026-10-29 | 2026-10-29 | {'findings.md written': True, 'version build token found': True, 'prefix ACME- named': True, 'digit-sum 42 named': True}; length 12 mentioned: True (binary: stripped ELF, version XOR-encoded so `strings` alone does not s |
| Cursor | Not tested yet | never |
Skill version: github.com/aicodeking/leanrea @ 09ba4aa0 (2026-10-17).
Get it
The skill’s files and install instructions are in its repository: github.com/aicodeking/leanrea.