Paired-Twin Change Trials

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "paired-twin-change-trials": {
      "type": "http",
      "url": "https://textforagents.com/products/paired-twin-change-trials-for-agents/mcp"
    }
  }
}

7 tools

• trial_register_protocol

  Register a hash-bound trial protocol; twins fork from the identical checkpoint, exactly one registered variable may differ.

• trial_fork_pair

  Fork a checkpoint-paired assignment for one task (blinded arms A/B).

• trial_run_pair

  Run one pair with the deterministic scripted agent and score blind. $0.25/pair, first 10 free once per operator.

• trial_submit_outputs

  Submit the operator twins' outputs for one pair; blinded deterministic scoring. $0.25/pair, first 10 free once per operator.

• trial_score

  Alias of trial_submit_outputs (blinded scoring).

• trial_verdict

  Trial verdict under the enforced stopping rule.

• trial_unblind

  Unblind after the verdict; hashed signed receipt covering every pair.

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