cell-free-expression

cell-free-expression is a skill for Claude Code, Codex from BioTender-max/awesome-bio-agent-skills. It costs 67 tokens per session (3,184 once invoked), scanned A, original, no licence file.

A guide to cell-free protein synthesis, a way to make proteins in a tube without using living cells.

In plain words
What is it for?
Planning and improving experiments, designing DNA templates, and producing difficult proteins such as membrane, toxic, or disulfide-rich proteins.
Why use it?
It helps identify causes of low protein yield, clumping, or difficulty making proteins that harm or do not work well in living cells.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Planning and improving experiments, designing DNA templates, and producing difficult proteins such as membrane, toxic, or disulfide-rich proteins.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/biotender-max/awesome-bio-agent-skills/cell-free-expression
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 BioTender-max/awesome-bio-agent-skills --skill cell-free-expression
Clone the repo
git clone --depth 1 https://github.com/BioTender-max/awesome-bio-agent-skills

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 cell-free-expression

README.md
[![agentmods](https://agentmods.dev/badge/skills/biotender-max/awesome-bio-agent-skills/cell-free-expression/github.svg)](https://agentmods.dev/skills/biotender-max/awesome-bio-agent-skills/cell-free-expression)
Your own site
<a href="https://agentmods.dev/skills/biotender-max/awesome-bio-agent-skills/cell-free-expression"><img src="https://agentmods.dev/badge/skills/biotender-max/awesome-bio-agent-skills/cell-free-expression/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 cell-free-expression

Your own site · 80×15
<a href="https://agentmods.dev/skills/biotender-max/awesome-bio-agent-skills/cell-free-expression"><img src="https://agentmods.dev/badge/skills/biotender-max/awesome-bio-agent-skills/cell-free-expression.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 67 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,184 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 unknown 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 $0.00067 $0.03184
Opus 5 $0.00034 $0.01592
Sonnet 5 $0.00013 $0.00637
Haiku 4.5 $0.00007 $0.00318

Measured 12d ago against content hash f6ec951e3962, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

cell-free-expression 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 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.

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/adaptyv/cell-free-expression/SKILL.md · 292 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

Read it on GitHub

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 · 292 lines · 67 tokens per session scan A f6ec951e3962

Subscribe to this mod's changes

cell-free-expression is a skill published in the GitHub repository BioTender-max/awesome-bio-agent-skills (176 stars, last pushed 2mo ago), with no licence file. It adds 67 tokens to every session and 3,184 once invoked, about $0.0003 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.

Related

Other skills, from other repositories

cell-free-protein-expression

Cell-free protein synthesis (CFPS) planning and optimization guidance. Use when: (1) Planning CFPS experiments, (2) Troubleshooting low yield or aggregation, (3) Optimizing DNA template design for CFPS, (4) Expressing difficult proteins (disulfide-rich, toxic, membrane).

zongtingwei/Bioclaw_Skills_Hub · 69 tokens

cell-free-expression

Guidance for cell-free protein synthesis (CFPS) optimization. Use when: (1) Planning CFPS experiments, (2) Troubleshooting low yield or aggregation, (3) Optimizing DNA template design for CFPS, (4) Expressing difficult proteins (disulfide-rich, toxic, membrane).

adaptyvbio/protein-design-skills · 67 tokens

binding-characterization

Guidance for SPR and BLI binding characterization experiments. Use when: (1) Planning binding kinetics experiments, (2) Troubleshooting poor/no binding signal, (3) Interpreting kinetic data artifacts, (4) Choosing between SPR vs BLI platforms.

FridrichMethod/awesome-skills · 57 tokens

cell-free-expression

Guidance for cell-free protein synthesis (CFPS) optimization. Use when: (1) Planning CFPS experiments, (2) Troubleshooting low yield or aggregation, (3) Optimizing DNA template design for CFPS, (4) Expressing difficult proteins (disulfide-rich, toxic, membrane).

BioTender-max/ProteinClaw · 67 tokens

binding-characterization

Guidance for SPR and BLI binding characterization experiments. Use when: (1) Planning binding kinetics experiments, (2) Troubleshooting poor/no binding signal, (3) Interpreting kinetic data artifacts, (4) Choosing between SPR vs BLI platforms.

FreedomIntelligence/OpenClaw-Medical-Skills · 57 tokens

alphafold

Validate protein designs using AlphaFold2 structure prediction. Use this skill when: (1) Validating designed sequences fold correctly, (2) Predicting binder-target complex structures, (3) Calculating confidence metrics (pLDDT, pTM, ipTM), (4) Self-consistency validation of designs, (5) Multi-chain complex prediction…

FridrichMethod/awesome-skills · 100 tokens