What is Scientific Agent Skills?
Scientific Agent Skills, formerly Claude Scientific Skills, is K-Dense's collection of agent skills for research work. Each skill is a folder with a SKILL.md that tells the agent how to use a specific package, database or workflow the way the field expects: which test is accepted, which identifier namespace is authoritative, which caveats a result needs. Version 2.72.0 has 177 skills, including more than 70 for Python packages such as RDKit, Scanpy and Qiskit, and a single Database Lookup skill that documents 80 sources from PubChem and UniProt to ClinicalTrials.gov and FRED.
It follows the open Agent Skills standard and installs into Claude Code, Codex, Cursor, Gemini CLI, Google Antigravity and other hosts through npx skills, gh skill or as an Agent Plugins package. The project is described in an arXiv paper, 2609.00065.
K-Dense, the company behind it, also sells K-Dense Web, a hosted research agent, and gives away K-Dense BYOK, a desktop co-scientist built on these skills.
How much does Scientific Agent Skills cost?
| Plan | Price | What you get |
|---|---|---|
| Open source | Free | MIT; your own agent and model |
| K-Dense Web Plus | $199/month | 300 credits a month, unused credits expire |
| K-Dense Web Team | $499/month | 800 shared credits, unlimited seats |
Free and open source (MIT). You pay for your agent's model usage and any licensed databases. K-Dense's hosted K-Dense Web is separate: Plus $199/month, Team $499/month, pay-as-you-go runs up to $9 (Standard) or $29 (Pro).
Is Scientific Agent Skills worth it?
This is a serious science library in the Agent Skills format, and its value is procedural rather than magical. The repo has about 55,000 GitHub stars, 58 contributors and a release, v2.72.0, on 1 October 2026, with commits since. Its own paper (arXiv 2609.00065) frames the problem well: an agent asked to analyse RNA-seq data will return working code that may still treat cells from the same mice as independent replicates. The skills write down the choices that make an analysis defensible, so the agent loads them only when a task calls for them.
The evidence for that is thinner than the star count suggests. The paper, which describes 163 skills at v2.65.0, says plainly that it reports no task-level evaluation, so nobody has shown that the skills make an agent's results better. What it does measure is cost: the always-loaded descriptions of all 163 skills take 7.1% of a 200,000-token window, and 29 of the 46 documented workflows would overflow it if every reference file were read. K-Dense's own K-Bench, cited in the README, found overclaiming in 40% of runs across nine frontier models on 178 real tasks, which is a fair warning about trusting any agent's report of success here.
Security is the reason to be selective. The project scans every skill with Cisco's AI Defense Skill Scanner and publishes the results; the 26 October 2026 report passed 159 of 177 skills and logged 32 critical and 21 high findings, with literature-review, citation-management and scientific-slides among the nine skills rated critical. The README itself now advises against installing the whole collection, because community contributions have not all had K-Dense's internal review. Pinning a release tag with gh skill is the sensible default.
The repository is also a funnel, though a fairly honest one. The README asks for stars at length and claims 250,000 scientists as users, a figure we could not verify; skills.sh counts about 308,000 installs across the repo's skills. K-Dense Web costs $199 a month for 300 credits on Plus and $499 for a shared 800 on Team, and an earlier K-Dense post positions the open skills as the do-it-yourself tier that needs a person to orchestrate every step. Compared with Sakana's AI Scientist, which tries to run whole research loops on its own, this library makes your existing agent more careful and leaves the judgement with you.
Where it earns its place
A computational biologist in a ten-person single-cell lab using Claude Code
Get the agent to run a Scanpy and PyDESeq2 analysis without basic statistical mistakes
Install only the scanpy, bulk-rnaseq, pydeseq2 and pathway-enrichment skills, pinned to a release tag. Free apart from model usage; the skills hand off between steps and spell out checks, but the paper offers no measured accuracy gain, so a person still reviews the design.
A medicinal chemist at a small biotech
Pull compound and target data from PubChem and ChEMBL and screen candidates in RDKit
The Database Lookup skill documents endpoints, pagination and access rules for 80 sources, and the RDKit skill covers property calculation. No licence cost; some databases such as COSMIC need registered or licensed access.
The head of a university core facility weighing hosted research agents
Decide between free skills on existing agent seats and a paid platform
The open skills cost nothing but need someone to drive each step. K-Dense Web Team is $499 a month for 800 shared credits with unlimited seats, and academic labs can get the annual Team plan at 90% off.
Before you commit
- Setup
- `npx skills add K-Dense-AI/scientific-agent-skills`, or `gh skill install K-Dense-AI/scientific-agent-skills <skill> --pin <tag>` with GitHub CLI 2.90.0+. Skills with scripts need Python packages installed with uv; restricted sandboxes such as NemoClaw block network calls until domains are approved.
- Integrations
- Claude Code, Claude Cowork, Codex, Cursor, Gemini CLI, Google Antigravity, Hermes and other Agent Skills or Agent Plugins hosts. Integration skills for Benchling, DNAnexus, LatchBio, OMERO, Protocols.io, LabArchives and Opentrons.
- Data and privacy
- Plain Markdown and scripts with no service of their own; your data goes wherever your agent, model provider and the APIs a skill calls send it. Clinical skills are scoped to research and synthetic or aggregate data, not patient decisions. MIT licence; the four Anthropic document skills were removed in 2.72.0 over licensing.
- Cost at scale
- Free. Real costs are model tokens, which rise with every skill description loaded, and any paid APIs a skill uses. K-Dense Web, the hosted alternative, runs $199 to $499 a month or up to $29 per pay-as-you-go Pro run.
- Limits
- 18 skills flagged critical or high by the security scan; no task-level evaluation; 29 of 46 workflows overflow a 200,000-token window if every reference file loads; skill counts change between releases.
What's good
- 177 skills covering genomics, chemistry, imaging, clinical pharmacology and more
- One Database Lookup skill documents 80 sources with access rules and provenance
- Skills record versions and validation scope; releases can be pinned
- Weekly security scan with published results
What's not
- 18 of 177 skills fail the project's own security scan
- No published evidence that the skills improve analysis quality
- Loading many skills eats context quickly
- README doubles as marketing for a paid platform
Best for
Researchers and lab engineers who already use a coding agent and want it to follow field conventions for specific packages and databases.
Scientific Agent Skills alternatives
Scientific Agent Skills: common questions
- Is Scientific Agent Skills worth it?
- Scientific Agent Skills gives a general coding agent the conventions a working scientist would insist on, provided you install the few skills you need rather than all 177. We rate it 4.1 out of 5.
- How much does Scientific Agent Skills cost?
- Free and open source (MIT). You pay for your agent's model usage and any licensed databases. K-Dense's hosted K-Dense Web is separate: Plus $199/month, Team $499/month, pay-as-you-go runs up to $9 (Standard) or $29 (Pro).
- What are the downsides of Scientific Agent Skills?
- 18 of 177 skills fail the project's own security scan; no published evidence that the skills improve analysis quality; loading many skills eats context quickly; rEADME doubles as marketing for a paid platform.
- Who is Scientific Agent Skills best for?
- Researchers and lab engineers who already use a coding agent and want it to follow field conventions for specific packages and databases.
- How much does Scientific Agent Skills cost for a team or in production?
- Free. Real costs are model tokens, which rise with every skill description loaded, and any paid APIs a skill uses. K-Dense Web, the hosted alternative, runs $199 to $499 a month or up to $29 per pay-as-you-go Pro run.
- Is Scientific Agent Skills safe for company data?
- Plain Markdown and scripts with no service of their own; your data goes wherever your agent, model provider and the APIs a skill calls send it. Clinical skills are scoped to research and synthetic or aggregate data, not patient decisions. MIT licence; the four Anthropic document skills were removed in 2.72.0 over licensing.
- What are the best Scientific Agent Skills alternatives?
- The closest alternatives we have reviewed are The AI Scientist (v1, v2 and v3), Anthropic Skills and Superpowers.
Answers checked Oct 28, 2026.
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