sc-consensus-clustering

sc-consensus-clustering is a skill for Claude Code, Codex from TianGzlab/OmicsClaw. It costs 74 tokens per session (1,095 once invoked), scanned A, original, Apache-2.0.

A single-cell analysis that creates clusters of similar cells across several clustering settings and combines the stable results. Clustering groups cells with similar gene-expression patterns.

In plain words
What is it for?
Use it on preprocessed single-cell data when you want more reliable cell-group assignments than one clustering run provides. It is useful for finding stable cell populations and subpopulations.
Why use it?
Single-cell clusters can change when you alter the clustering resolution or algorithm. This identifies labels that remain consistent across those choices.

Skill for Claude CodeCodex

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

Good fit Use it on preprocessed single-cell data when you want more reliable cell-group assignments than one clustering run provides. It is useful for finding stable cell populations and subpopulations.

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Install with agentmods
npx agentmods add skills/tiangzlab/omicsclaw/sc-consensus-clustering
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 TianGzlab/OmicsClaw --skill sc-consensus-clustering
Clone the repo
git clone --depth 1 https://github.com/TianGzlab/OmicsClaw

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 sc-consensus-clustering

README.md
[![agentmods](https://agentmods.dev/badge/skills/tiangzlab/omicsclaw/sc-consensus-clustering/github.svg)](https://agentmods.dev/skills/tiangzlab/omicsclaw/sc-consensus-clustering)
Your own site
<a href="https://agentmods.dev/skills/tiangzlab/omicsclaw/sc-consensus-clustering"><img src="https://agentmods.dev/badge/skills/tiangzlab/omicsclaw/sc-consensus-clustering/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 sc-consensus-clustering

Your own site · 80×15
<a href="https://agentmods.dev/skills/tiangzlab/omicsclaw/sc-consensus-clustering"><img src="https://agentmods.dev/badge/skills/tiangzlab/omicsclaw/sc-consensus-clustering.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 74 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,095 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 warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Rogue Agent · line 3
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
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 $0.00074 $0.01095
Opus 5 $0.00037 $0.00548
Sonnet 5 $0.00015 $0.00219
Haiku 4.5 $0.00007 $0.00110

Measured 5d ago against content hash ad1d43af59db, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

sc-consensus-clustering 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 5d ago.

The scan reads SKILL.md. This mod also ships 2 executable files (sc_consensus_clustering.py, tests/test_cli_smoke.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/singlecell/scrna/sc-consensus-clustering/SKILL.md · 115 lines

How it starts

The opening of the file, as written. The whole thing — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.

sc-consensus-clustering

When to use

The user has a preprocessed scRNA AnnData (PCA + neighborhood graph already computed via sc-preprocessing) and wants robust cell-cluster assignments insensitive to the chosen resolution. Single-resolution Leiden/Louvain results are notoriously resolution-sensitive — at r=0.4 you get 6 broad types, at r=1.5 you get 22 sub-states. This skill runs a SACCELERATOR-style consensus across a resolution sweep (and optionally across leiden vs louvain) and reports the stable core of the labels.

It does NOT replace sc-clustering; it wraps it.

Inputs & Outputs

Inputs

  • Modalities: scrna
  • File types: .h5ad
  • Requires a preprocessed AnnData (X normalised, PCA/neighbours present)
  • Expects obsm: X_pca

Outputs

  • consensus_labels.tsv
  • member_scores.csv
  • cross_method_nmi.csv
  • plan.json
  • report.md
  • result.json

Flow

  1. Plan members — either user-supplied (--members / --all) or derived from the resolution sweep × cluster-methods combinations.
  2. Fan out — runtime invokes sc-clustering once per member.
  3. Scoresilhouette_score from each member's clustering_summary.csv is the intrinsic-quality signal; cross-method NMI is computed across members.
  4. BC pick — top-K-by-composite-score default; CLI interactive override allowed.
  5. Consensus — kmode / weighted / LCA on the selected base clusterings.
  6. Report — banner + score table + NMI matrix.

Gotchas

  • --cluster-methods defaults to leiden ONLY, not both, because louvain and leiden agree to within 1–2% on most datasets and the consensus signal comes mostly from the resolution sweep.
  • Resolutions must span at least one factor of 2 for the consensus to be informative; default sweep covers 0.5–2.0.
  • The mandatory banner is enforced by runtime/consensus/dispatch.output_banner. Do NOT strip it.
  • requires_preprocessed: true — run sc-preprocessing first.

Read the full file on GitHub · 115 lines

Files

What ships with it

6 files 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. 5d ago First seen · 115 lines · 74 tokens per session scan A ad1d43af59db

Subscribe to this mod's changes

sc-consensus-clustering is a skill published in the GitHub repository TianGzlab/OmicsClaw (160 stars, last pushed 1mo ago), licensed Apache-2.0. It adds 74 tokens to every session and 1,095 once invoked, about $0.0004 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 2026-09-03.

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