drug-repurposing

drug-repurposing is a skill for Claude Code, Codex from inflexa-ai/inflexa. It costs 30 tokens per session (2,171 once invoked), scanned A, original, Apache-2.0.

A guide for finding new medical uses for existing drugs. It compares disease-related gene activity, drug targets, biological networks, genetic evidence, and clinical evidence to identify possible treatments.

In plain words
What is it for?
Use it to compare disease and drug gene signatures, rank target or network matches, score genetic support, and gather clinical evidence for repurposing candidates.
Why use it?
It provides different methods for different starting data, such as a ranked list of changed genes or drug target information. It also highlights when an external drug-response collection may not be available.

Skill for Claude CodeCodex

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

Good fit Use it to compare disease and drug gene signatures, rank target or network matches, score genetic support, and gather clinical evidence for repurposing candidates.

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Install with agentmods
npx agentmods add skills/inflexa-ai/inflexa/drug-repurposing
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 inflexa-ai/inflexa --skill drug-repurposing
Clone the repo
git clone --depth 1 https://github.com/inflexa-ai/inflexa

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 drug-repurposing

README.md
[![agentmods](https://agentmods.dev/badge/skills/inflexa-ai/inflexa/drug-repurposing/github.svg)](https://agentmods.dev/skills/inflexa-ai/inflexa/drug-repurposing)
Your own site
<a href="https://agentmods.dev/skills/inflexa-ai/inflexa/drug-repurposing"><img src="https://agentmods.dev/badge/skills/inflexa-ai/inflexa/drug-repurposing/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 drug-repurposing

Your own site · 80×15
<a href="https://agentmods.dev/skills/inflexa-ai/inflexa/drug-repurposing"><img src="https://agentmods.dev/badge/skills/inflexa-ai/inflexa/drug-repurposing.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,171 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.
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 $0.00030 $0.02171
Opus 5 $0.00015 $0.01086
Sonnet 5 $0.00006 $0.00434
Haiku 4.5 $0.00003 $0.00217

Measured yesterday against content hash 147fc97945d2, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

drug-repurposing 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 yesterday.

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/drug-repurposing/SKILL.md · 210 lines

How it starts

The opening of the file, as written. The whole thing — 210 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Drug Repurposing

This skill guides systematic identification of existing drugs for new therapeutic indications using computational methods. Covers signature- based, target-based, network-based, and genetics-based approaches.

Strategy Selection Decision Tree

Choose the repurposing strategy based on available data:

  1. Signature-based repurposing (have: disease DE signature)

    • Query a disease transcriptomic signature against drug perturbation profiles (CMap-style connectivity scoring).
    • Drugs that REVERSE the disease signature are therapeutic candidates. Drugs that MIMIC it may exacerbate.
    • See references/repurposing-methods.md for connectivity scoring with gseapy.prerank and permutation testing.
    • Input: ranked gene list from DE analysis (sign(log2FC) * -log10(pvalue)), plus a set of drug perturbation profiles.
    • Reference-data caveat: a drug-perturbation signature collection is in the reference inventory as an opt-in download, so resolve it up front and expect it may not be staged. It arrives as directional gene sets — one up set and one down set per experiment — and connectivity is the difference between their two enrichment scores, so pair them by their shared term prefix and never score one alone. Failing that, search the workspace for staged perturbation data. If neither is present, say so and switch to a target-, network-, or genetics-based strategy — do not invent a signature path, and do not substitute drug-target gene sets for perturbation profiles and still call the output a connectivity score.
    • Output: ranked drugs by connectivity score with FDR.
  2. Target-based repurposing (have: validated target gene list)

    • Map disease-relevant targets to known drugs via ChEMBL, DrugBank, and Open Targets.
    • Workflow: a. Resolve gene symbols to ChEMBL target identifiers. b. Find compounds with bioactivity against each of those targets. c. Check approval status and existing indications for each drug. d. Verify the mechanism of action is relevant to the disease. e. Where DrugBank lookup is available, add indication, interaction, and pharmacology data.
    • Prioritize: approved drugs > Phase 3 > Phase 2 > Phase 1 > preclinical.
    • Flag drugs already indicated for the target disease (not repurposing candidates).

Read the full file on GitHub · 210 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. yesterday First seen · 210 lines · 30 tokens per session scan A 147fc97945d2

Subscribe to this mod's changes

drug-repurposing is a skill published in the GitHub repository inflexa-ai/inflexa (33 stars, last pushed today), licensed Apache-2.0. It adds 30 tokens to every session and 2,171 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 2026-09-09.

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