bioprobench

bioprobench is a skill for Claude Code, Codex from PKU-YuanGroup/OpenAI4S. It costs 46 tokens per session (2,444 once invoked), scanned A, original, MIT.

A benchmark for testing how well a language model understands biological laboratory protocols. It checks answers about protocol details, step order, error correction, protocol writing, and explanations of errors.

In plain words
What is it for?
Use it to score a model on protocol questions, procedure ordering, modified-step checks, protocol generation, and judged error reasoning using real wet-lab protocols.
Why use it?
It helps reveal whether a model gives scientifically reliable protocol guidance instead of answers that merely sound plausible. This is useful when incorrect steps, amounts, or safety warnings could cause failed experiments.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it to score a model on protocol questions, procedure ordering, modified-step checks, protocol generation, and judged error reasoning using real wet-lab protocols.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pku-yuangroup/openai4s/bioprobench
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add PKU-YuanGroup/OpenAI4S --skill bioprobench
Clone the repo
git clone --depth 1 https://github.com/PKU-YuanGroup/OpenAI4S

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for bioprobench

README.md
[![agentmods](https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bioprobench/github.svg)](https://agentmods.dev/skills/pku-yuangroup/openai4s/bioprobench)
Your own site
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bioprobench"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bioprobench/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for bioprobench

Your own site · 80×15
<a href="https://agentmods.dev/skills/pku-yuangroup/openai4s/bioprobench"><img src="https://agentmods.dev/badge/skills/pku-yuangroup/openai4s/bioprobench.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,444 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00046 $0.02444
Opus 5 $0.00023 $0.01222
Sonnet 5 $0.00009 $0.00489
Haiku 4.5 $0.00005 $0.00244

Measured 7d ago against content hash 56ddbe9da8c2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

bioprobench scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 7d ago.

The scan reads SKILL.md. This mod also ships 5 executable files (kernel.py, Scripts/generate_response_local.py, Scripts/generate_response.py, …), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/bioprobench/SKILL.md · 224 lines

How it starts

The opening of the file, as written. The whole thing — 224 lines — stays where its author put it; the contents beside it link to each section on GitHub.

BioProBench — protocol understanding and reasoning

Biological protocols are where a plausible-sounding answer becomes a failed experiment: a wrong dosage, a swapped step, an unflagged hazard. BioProBench scores a model on five tasks over real wet-lab protocols, roughly 5,000 instances in the full release.

Task What it measures Metrics returned
PQA Protocol question answering — reagents, dosages, parameters Accuracy, Brier_Score, Failed_Rate
ORD Step ordering — reconstructing procedural sequence Exact_Match, Kendall_Tau, Failed_Rate
ERR Error correction — is this modified step valid accuracy, precision, recall, f1, failed_rate
GEN Protocol generation — synthesising steps BLEU, METEOR, ROUGE-L, KW_F1, Step_Recall, Redundancy_Penalty, Failed_Rate
REA-ERR Error reasoning, graded by an LLM judge Consistency, Failure_Rate, Total, Failed, Total_Items, Judged, Unjudged, Coverage

Metric key casing differs per task — ERR returns lowercase keys, the rest are capitalised. Read them off the table above rather than guessing.

The input contract is the thing that bites

run_bioprobench_eval does not take a plain model-output file and compare it against a separate answer key. It takes one file that already has the ground truth merged into each record alongside the model's response. The upstream inference scripts produce exactly this, by adding a generated_response key to each benchmark record in place.

Hand it a file containing only model outputs and it does not raise: every record simply fails to parse and the metrics come back at zero. The envelope says so — status is "failed" when nothing scored and "partial" when some records dropped out — but still check Failed_Rate on every run. A rate of 1.0 means the input contract was violated, not that the model scored zero.

Required keys per record, per task:

Task Model output key Ground-truth key(s)
PQA generated_response answer
ORD generated_response wrong_steps, correct_steps
ERR generated_response is_correct (true/false, 1/0, or "true"/"false")
GEN generated_response output (string, or list of reference steps)
REA-ERR LLM_judge none — the judgment text is itself the signal

Read the full file on GitHub · 224 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 7d ago Changed · +4 lines 56ddbe9da8c2
  2. 11d ago First seen · 220 lines · 46 tokens per session scan A 2469266101de

Subscribe to this mod's changes

bioprobench is a skill published in the GitHub repository PKU-YuanGroup/OpenAI4S (403 stars, last pushed today), licensed MIT. It adds 46 tokens to every session and 2,444 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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