Consult the Oracle · runs in your browser · no install

See what the Oracle sees on a real SWE-bench Lite scenario.

Pick a Python patch from the picker below, or paste your own diff. The Oracle returns the same shape the production predictor returns — Pass / Fail / Abstain, named failure mode, closest historical exemplar, and a signed packet you can copy out and replay offline with the public key. Reading the present is a thing you can actually do.

A brass tray holding three SWE-bench Lite index cards (django, sympy, matplotlib), a fountain pen, and an oxblood wax-seal holder.

1. Pick a scenario

Each scenario is a real SWE-bench Lite Python instance: repository, issue, claimed patch, and the Docker oracle's actual verdict.

2. Or paste your own Python diff

Mejepa's exemplar-lookup will return the closest historical match from the 491-row accepted-label registry . The demo route returns the verdict shape; the production route additionally runs the Docker oracle.

3. Wire Mejepa into your agent loop

Pilots wire Mejepa as a Model Context Protocol server. 57 mejepa_* tools are exposed today .

Claude Code · Cursor · Windsurf · Cline · Continue (MCP) 
{
  "mcpServers": {
    "mejepa": {
      "command": "mejepa-mcp",
      "args": []
    }
  }
}
CI gate (shell) 
#!/usr/bin/env bash
mejepa_eval_run --strict || exit 2

See /how-it-works for the full MCP tool list. Pilot engagements include MCP wiring, one Python repo, one agent loop. Request a pilot.