update dataset card

README.md

@@ -81,7 +81,6 @@ configs:
     path: data/train-*
 ---
 
-
 ![Collider-Bench diagram](https://huggingface.co/datasets/Dariusfar/ColliderBench/resolve/main/Collider-Bench_diagram.png)
 
 **Collider-Bench** is an AI benchmark for evaluating whether LLM agents can reproduce experimental analyses from the **Large Hadron Collider** (LHC) at CERN using only public papers and open scientific software.
@@ -126,6 +125,7 @@ scripts/run-agent --config configs/anthropics/claude_sonnet.yaml --task sus-16-0
 |---|---|---|
 | `task_id`            | string | Canonical task identifier, e.g. `sus-16-046_sim-T5Wg` |
 | `paper_id`           | string | CMS analysis identifier, e.g. `CMS-SUS-16-046` |
+| `initial_prompt`     | string | The system prompt the reference `simple` agent receives (from `agents/simple/run.py:build_prompt`); use as a starting point or replace with your own |
 | `analysis_target`    | string | Final state under study (`photons`, `single lepton`, `leptons + jets`) |
 | `signal_model`       | string | SUSY simplified-model name + slice (`T5Wg, high-H_T`, `T2tt, compressed`, …) |
 | `observable`         | string | Observable key as used by the scorer (`STgamma`, `MET`, …) |