ipsae

ipsae is a skill for Claude Code, Codex from zongtingwei/Bioclaw_Skills_Hub. It costs 114 tokens per session (1,557 once invoked), scanned A, original, MIT.

A protein-binder ranking tool that scores predicted protein-to-protein interactions from AlphaFold2, AlphaFold3, or Boltz1 results.

In plain words
What is it for?
Use it to rank binder designs, filter BindCraft or RFdiffusion results, compare structure predictions, and estimate which designs may bind successfully.
Why use it?
It helps choose which computationally designed binders to test in the lab by providing a ranking score for predicted binding.

Skill for Claude CodeCodex

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

Good fit Use it to rank binder designs, filter BindCraft or RFdiffusion results, compare structure predictions, and estimate which designs may bind successfully.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/zongtingwei/bioclaw_skills_hub/ipsae
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 zongtingwei/Bioclaw_Skills_Hub --skill ipsae
Clone the repo
git clone --depth 1 https://github.com/zongtingwei/Bioclaw_Skills_Hub

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 ipsae

README.md
[![agentmods](https://agentmods.dev/badge/skills/zongtingwei/bioclaw_skills_hub/ipsae/github.svg)](https://agentmods.dev/skills/zongtingwei/bioclaw_skills_hub/ipsae)
Your own site
<a href="https://agentmods.dev/skills/zongtingwei/bioclaw_skills_hub/ipsae"><img src="https://agentmods.dev/badge/skills/zongtingwei/bioclaw_skills_hub/ipsae/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 ipsae

Your own site · 80×15
<a href="https://agentmods.dev/skills/zongtingwei/bioclaw_skills_hub/ipsae"><img src="https://agentmods.dev/badge/skills/zongtingwei/bioclaw_skills_hub/ipsae.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 114 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,557 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00114 $0.01557
Opus 5 $0.00057 $0.00779
Sonnet 5 $0.00023 $0.00311
Haiku 4.5 $0.00011 $0.00156

Measured 12d ago against content hash 0a31a9e6f37c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

ipsae scanned grade A with 1 finding 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 12d ago.

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.

Runs shell commandslowCapability

Expected in a hook, worth knowing in a rule or an instructions file.

subprocess.run([
skills/protein-design/skills/ipsae/SKILL.md · 207 lines

How it starts

The opening of the file, as written. The whole thing — 207 lines — stays where its author put it; the contents beside it link to each section on GitHub.

ipSAE Binder Ranking

Prerequisites

Requirement Minimum Recommended
Python 3.8+ 3.10
NumPy 1.20+ Latest
RAM 8GB 16GB

Overview

ipSAE (interprotein Score from Aligned Errors) is a scoring function for ranking protein-protein interactions predicted by AlphaFold2, AlphaFold3, and Boltz1. It outperforms ipTM and iPAE for binder design ranking with 1.4x higher precision in identifying true binders.

Paper: What's wrong with AlphaFold's ipTM score

How to run

Installation

git clone https://github.com/DunbrackLab/IPSAE.git
cd IPSAE
pip install numpy

AlphaFold2

python ipsae.py scores_rank_001.json unrelaxed_rank_001.pdb 15 15

AlphaFold3

python ipsae.py fold_model_full_data_0.json fold_model_0.cif 10 10

Boltz1

python ipsae.py pae_model_0.npz model_0.cif 10 10

Key parameters

Parameter Description Recommended
PAE file JSON (AF2/AF3) or NPZ (Boltz) Match predictor
Structure file PDB or CIF structure Match PAE
PAE cutoff Threshold for contacts 10-15
Distance cutoff Max CA-CA distance (A) 10-15

Output format

Two output files are generated:

Chain-pair scores (_chains.csv):

chain_A,chain_B,ipSAE_min,pDockQ,pDockQ2,LIS,n_contacts,interface_dist
A,B,0.72,0.65,0.58,0.45,42,8.5

Residue-level scores (_residues.csv):

chain,resnum,pSAE,pLDDT
A,45,0.85,92.3
A,67,0.78,88.1

Sample output

Successful run

$ python ipsae.py scores_rank_001.json design_0.pdb 10 10
Processing design_0...
Found 2 chains: A, B
Computing ipSAE scores...

Results written to:
  design_0_chains.csv
  design_0_residues.csv

Summary:
  ipSAE_min: 0.72
  pDockQ: 0.65
  LIS: 0.45
  Interface contacts: 42

What good output looks like:

  • ipSAE_min > 0.61 (primary filter)
  • pDockQ > 0.5 (supporting metric)
  • Reasonable number of interface contacts (20-100)

Read the full file on GitHub · 207 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 12d ago First seen · 207 lines · 114 tokens per session scan A 0a31a9e6f37c

Subscribe to this mod's changes

ipsae is a skill published in the GitHub repository zongtingwei/Bioclaw_Skills_Hub (26 stars, last pushed 5mo ago), licensed MIT. It adds 114 tokens to every session and 1,557 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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