Run: 2026-05-29-01KSSJKBQJ3JMHZYE82T2959E1

Run Details

Model:: Claude Opus 4.8 (Reasoning)
Test:: Tool usage within Novelcrafter
Scenario:: Create alternate prose sections
Duration:: 11.9s
Cost:: $0.019775
Provider:: Anthropic

Evaluation summary

Score	Evaluator	Details Link
Pass	Match blue prose section	(details)
Pass	Match green prose section	(details)
Pass	Match red prose section	(details)
no eval	Overall

Model input

System

You are an expert fantasy novel author.
You are working on a novel called "The Chronicles of the Last Dragon".

The following tools are available to you:

- <nc-section>
  Use this tool to create a new section of prose.

  Arguments:
  - "data-title": The title of the section.
  - "data-color": Any color of (red, green, blue, yellow, purple, orange, pink, brown).

  Example usage:
  <nc-section data-title="Chapter 1: The Arrival" data-color="blue">
  Frederick, a young squire, arrives at the castle to begin his training.
  </nc-section>

User/Human

The story so far:
<storySoFar>
Frederick, a young squire, arrives at the castle to begin his training.
</storySoFar>

My horse, a majestic stallion named Thunder, galloped across the open field. The wind whipped through my hair as I rode towards the castle gates. The sun was setting, casting a warm glow over the stone walls. I could see the banners of the kingdom fluttering in the breeze.

User/Human

Continue the story with the following instructions:

"""The local knight, Sir Roland, greets Frederick near the stables."""

Create 3 alternate prose sections that continue the story.
- Version 1 (red)
- Version 2 (green)
- Version 3 (blue)

Model response

<nc-section data-title="Chapter 2: A Knight's Welcome" data-color="red">
As I dismounted near the stables, a tall figure clad in polished armor strode toward me. His weathered face bore the scars of countless battles, yet his eyes held a warmth that put me at ease. "You must be Frederick," Sir Roland said, extending a calloused hand. "I am Sir Roland, and I shall oversee your training. Come, lad—a squire's first lesson is to care for his steed before himself." He gestured to Thunder with an approving nod. "A fine animal. Treat him well, and he shall carry you through many a trial."
</nc-section>

<nc-section data-title="Chapter 2: The Old Warrior" data-color="green">
The stables smelled of hay and leather, and as I led Thunder inside, a gruff voice called out from the shadows. "About time someone arrived." Sir Roland emerged, his gray-streaked beard catching the lantern light. He looked me up and down with a critical eye, as if measuring my worth in a single glance. "Soft hands. Too clean a tunic. We'll fix that soon enough." A slow smile cracked his stern expression. "Welcome to the castle, Frederick. Your training begins at dawn—so rest while you can. You'll find little of it in the days to come."
</nc-section>

<nc-section data-title="Chapter 2: An Unexpected Greeting" data-color="blue">
I had barely tied Thunder's reins when laughter rang out across the courtyard. Sir Roland, a broad-shouldered knight with kind eyes, clapped me firmly on the back. "Ha! So the famous Frederick finally graces us with his presence!" He grinned beneath his russet beard. "Your father wrote to me of your spirit—and your stubbornness. We shall see how both fare against a blade." He winked, then his tone grew solemn. "But there are darker matters afoot in this kingdom, young one. Matters that may test you sooner than any of us would wish."
</nc-section>

Evaluation details

Result	Evaluator	Details	Meta Data
Pass	Match blue prose section	/<nc-section data-title="[^"]*" data-color="blue">[^<]+<\/nc-section>/	n/a
Pass	Match green prose section	/<nc-section data-title="[^"]*" data-color="green">[^<]+<\/nc-section>/	n/a
Pass	Match red prose section	/<nc-section data-title="[^"]*" data-color="red">[^<]+<\/nc-section>/	n/a
no eval