---
tags:
- rlvr
- grpo
- rust
- tool-use
- passk
---

# RLVR_HELDOUT69_PASSK_STEP25_DATASET

This is the exact 8-prompt RLVR training dataset used for `JayZenith/RLVR_HELDOUT69_PASSK_STEP25`.

Source: original held-out-69 failures rescanned with SFT_V1 pass@8. Kept only prompts where SFT_V1 showed latent capability under sampling (`0 < solves < 8`).

Files:

```text
rl_prompts_heldout69_passk_targets.jsonl   # 8 PRIME-RL/verifiers training rows
heldout69_passk_target_names.txt           # prompt/case ids used for matched pass@8 eval
```

Matched evaluation on the resulting step-25 checkpoint:

```text
SFT_V1:   47/64 = 0.734
step_25:  54/64 = 0.844
delta:    +7 solves, +10.9 pts
```

Training command and eval command are documented in the glyph repo README and `blog/blog_copy_copy.md`.

Scope note: this dataset is intentionally narrow. It is for testing whether RLVR improves reliability on prompts the SFT policy can already sometimes solve, not for broad Rust-agent generalization.