Agent skill

Grain Genome

by ObneyAI in ObneyAI/grain

Build or update Grain's interactive component genome. An agent skill from ObneyAI/grain.

MITAuto-check passedResearch & Science

Install Grain Genome

skills CLI
$ npx skills add ObneyAI/grain --skill grain-genome -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install ObneyAI/grain grain-genome --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/ObneyAI/grain.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/grain-genome .claude/skills/grain-genome && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
grain-genome
GitHub stars
124
Token cost
~445 tokens
SKILL.md length
169 words
Files
1
Skills in repo
8
Repo updated
First seen
Licence
MIT

At a glance

Build or update Grain's interactive component genome. An agent skill from ObneyAI/grain.

  • Works in 4 steps: Run bb scripts/genome/genome.bb from the… → Resolve every warning in genome-taste.edn → Rebuild until the coverage report is… → …
  • Regenerating scripts/genome/grain-genome.html
  • SKILL.md covers Loop and Taste rules
  • Calls node

What it does

Grain Genome is an agent skill from ObneyAI/grain. Build or update Grain's interactive component genome. Use when regenerating scripts/genome/grain-genome.html, resolving genome coverage warnings after component or macro changes, editing the taste overlay, or visually verifying component placement. Keep repository facts deterministic and human placement/description decisions in genome-taste.edn.

Its SKILL.md is about 450 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Research & Science, covering Bioinformatics. The repository describes itself as: Build Reasonable Applications with Clojure in the World of Natural Language Programming. The licence is MIT.

When your agent uses it

  • Regenerating scripts/genome/grain-genome.html
  • Resolving genome coverage warnings after component
  • Editing the taste overlay
  • Visually verifying component placement

Example prompts

  • “/grain-genome”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Run bb scripts/genome/genome.bb from the repository root.
  2. Resolve every warning in genome-taste.edn
  3. Rebuild until the coverage report is clean.
  4. Run node scripts/genome/shoot.js, inspect every screenshot, and adjust the

What it can do on your machine

Read from SKILL.md and the folder at commit dbf5b52. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • node

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Grain Genome loads about 445 tokens when it runs. Until then it costs about 90 tokens; SKILL.md has 169 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~90
When it runs · the whole SKILL.md, loaded when a task matches
~445

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from ObneyAI/grain at commit dbf5b52, republished under its MIT licence (© ObneyAI). 169 words, ~445 tokens.

Download SKILL.mdSave it as .claude/skills/grain-genome/SKILL.md (or your agent's skills folder).
name
grain-genome
description
Build or update Grain's interactive component genome. Use when regenerating scripts/genome/grain-genome.html, resolving genome coverage warnings after component or macro changes, editing the taste overlay, or visually verifying component placement. Keep repository facts deterministic and human placement/description decisions in genome-taste.edn.

Grain Genome

bb scripts/genome/genome.bb combines deterministic repository facts with the editorial overlay in scripts/genome/genome-taste.edn, then injects them into the HTML/Scittle shell. Never hand-edit generated grain-genome.html.

Loop

  1. Run bb scripts/genome/genome.bb from the repository root.
  2. Resolve every warning in genome-taste.edn:
    • Add missing current components with a unique (col,row), cluster, short role, and description.
    • Remove entries for deleted or deprecated components.
    • Add missing macros to the proper catalog group using the real arglist and a one-line purpose.
  3. Rebuild until the coverage report is clean.
  4. Run node scripts/genome/shoot.js, inspect every screenshot, and adjust the overlay until traces and layers read clearly.

Taste rules

Rows represent dependency layers: apps, entry/coordination, processors, event-log spine, storage, foundation. Columns run write-left, log-center, read-right. Place nodes near dependencies, avoid shared cells, and exploit shared columns for hubs. Prefer service-area clusters when registered; otherwise classify components by their architectural role.

Facts such as dependencies, LOC, protocols, macros, and deprecation belong only in genome.bb extraction. Placement, clusters, roles, descriptions, and macro presentation belong only in genome-taste.edn.

© ObneyAI, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/grain-genome of ObneyAI/grain.

Open the folder on GitHubat commit dbf5b52

Compare with similar skills

Grain Genome next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Grain Genome compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Grain Genome this skillObneyAI/grain124—~445Automated safety check: PassMIT
Alphagenome Single Variant Analysisgoogle-deepmind/science-skills3.2k2 repos~3kAutomated safety check: NotesApache-2.0
13C Metabolic Flux AnalysisK-Dense-AI/scientific-agent-skills48k1 repos~3.2kAutomated safety check: PassMIT
Clinvar Databasegoogle-deepmind/science-skills3.2k2 repos~3.9kAutomated safety check: NotesApache-2.0
Metabolic Study Planneraiming-lab/AutoResearchClaw15k—~1.9kAutomated safety check: PassMIT
Dbsnp Databasegoogle-deepmind/science-skills3.2k2 repos~3.4kAutomated safety check: NotesApache-2.0

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More from ObneyAI/grain

All 8 skills in this repo
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  • Event Model Distill

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  • Event Model Weed

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  • Event Model Elicit

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Questions about Grain Genome

What does Grain Genome do?

Build or update Grain's interactive component genome. An agent skill from ObneyAI/grain. Grain Genome is an agent skill from ObneyAI/grain. Build or update Grain's interactive component genome.

When should I use Grain Genome?

Grain Genome fits situations like: regenerating scripts/genome/grain-genome.html; resolving genome coverage warnings after component; editing the taste overlay; visually verifying component placement.

How do I install Grain Genome in Claude Code?

Run `npx skills add ObneyAI/grain --skill grain-genome -a claude-code`. Or copy the skill folder (skills/grain-genome in ObneyAI/grain) into .claude/skills/grain-genome in your project. Claude Code loads it when a task matches its description.

How do I install Grain Genome in Codex?

Run `npx skills add ObneyAI/grain --skill grain-genome -a codex`. Or copy the skill folder (skills/grain-genome in ObneyAI/grain) into .agents/skills/grain-genome in your project. Codex loads it when a task matches its description.

Can I use Grain Genome in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add ObneyAI/grain --skill grain-genome -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/grain-genome, .gemini/skills/grain-genome, .github/skills/grain-genome and .opencode/skills/grain-genome in your project.

What does Grain Genome need to run?

Going by SKILL.md and its folder, Grain Genome needs the command-line tools its instructions call (node).

Does Grain Genome access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Grain Genome safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Grain Genome use?

Grain Genome is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Grain Genome use?

About 445 tokens (SKILL.md is roughly 1.8k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Grain Genome?

Skills that share tags, products or a category with Grain Genome: Alphagenome Single Variant Analysis (google-deepmind/science-skills, 3.2k stars), 13C Metabolic Flux Analysis (K-Dense-AI/scientific-agent-skills, 48k stars), Clinvar Database (google-deepmind/science-skills, 3.2k stars) and Metabolic Study Planner (aiming-lab/AutoResearchClaw, 15k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Grain Genome?

ObneyAI (a GitHub organization) maintains it in ObneyAI/grain, which has 124 GitHub stars. The repository holds 8 skills in this directory. The repository was last updated on October 9, 2026.

Source: ObneyAI/grain on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.