Agent skill

Semi Brain

by n1m21n in n1m21n/Infinite

Infinite's distilled-brain CLI (tools/semi-brain). An agent skill from n1m21n/Infinite.

Custom licenceAuto-check passedDevelopment

Install Semi Brain

skills CLI
$ npx skills add n1m21n/Infinite --skill semi-brain -a claude-code

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

GitHub CLI
$ gh skill install n1m21n/Infinite semi-brain --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/n1m21n/Infinite.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/semi-brain .claude/skills/semi-brain && 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
semi-brain
GitHub stars
271
Token cost
~2.8k tokens
SKILL.md length
1,253 words
Files
1
Skills in repo
56
Repo updated
First seen
Licence
Custom licence

At a glance

Infinite's distilled-brain CLI (tools/semi-brain). An agent skill from n1m21n/Infinite.

  • Works in 4 steps: When to Consult the Semi-Brain → How to Run the Semi-Brain from CLI → How to Update & Improve the Brain After… → …
  • Development work in your project
  • SKILL.md covers 1. When to Consult the…, 2. How to Run the Semi-Brain…, 3. How to Update & Improve the… and 4. Key Distilled References
  • Calls python3 and git

What it does

Semi Brain is an agent skill from n1m21n/Infinite. Infinite's distilled-brain CLI (tools/semi-brain). Query it before a non-trivial architecture decision - fix-in-place vs rewrite/refactor, a new invariant, a choice between designs - and fold its Branch A/B/C scores and invariant checklist into the recommendation. Also use after a user correction to log a DPO preference, or to add a newly confirmed bug pattern to 2distilledbrain/.

Its SKILL.md is about 2.8k 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 Development. The repository describes itself as: Infinite is a node-based audiovisual workstation — real-time GPU video compositing, procedural 3D geometry, modular synths, DSP, and VST3/AU plugin hosting.

When your agent uses it

  • Development work in your project

Example prompts

  • “/semi-brain”

Requirements

  • Python 3

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. When to Consult the Semi-Brain
  2. How to Run the Semi-Brain from CLI
  3. How to Update & Improve the Brain After Completing Work
  4. Key Distilled References

What it can do on your machine

Read from SKILL.md and the folder at commit 4e7ffe5. 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:

    • python3
    • git

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

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

    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

Semi Brain loads about 2.8k tokens when it runs. Until then it costs about 99 tokens; SKILL.md has 1,253 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~99
When it runs · the whole SKILL.md, loaded when a task matches
~2.8k

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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 1,253 words (~2,806 tokens).

“The Semi-Brain encodes Infinite's core engineering reflexes: System 1 (Intuitive taste, zero-sigil clarity, realtime safety, UI symmetry), System 2 (Systems thinking, 9-question blast radius, invariant interaction audit), and Choice Tree MCTS rollouts.”

— opening of SKILL.md by n1m21n, Custom licence
name
semi-brain

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .claude/skills/semi-brain of n1m21n/Infinite.

Open the folder on GitHubat commit 4e7ffe5

Compare with similar skills

Semi Brain 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.

Semi Brain compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Semi Brain this skilln1m21n/Infinite271—~2.8kAutomated safety check: PassCustom licence
Vercel Composition Patternssupabase/supabase111k58 repos~726Automated safety check: PassMIT
Finishing a Development Branchobra/superpowers297k5 repos~1.9kAutomated safety check: PassMIT
Typescript Advanced Typesrolling-scopes/rsschool-app10k25 repos~4.2kAutomated safety check: PassMPL-2.0
PR Babysitteropeninterpreter/openinterpreter69k3 repos~4.2kAutomated safety check: PassApache-2.0
Code Review ChecklistshareAI-lab/learn-claude-code78k4 repos~1.1kAutomated safety check: PassMIT

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Categories

Questions about Semi Brain

What does Semi Brain do?

Infinite's distilled-brain CLI (tools/semi-brain). An agent skill from n1m21n/Infinite. Semi Brain is an agent skill from n1m21n/Infinite. Infinite's distilled-brain CLI (tools/semi-brain).

When should I use Semi Brain?

Semi Brain fits situations like: development work in your project.

How do I install Semi Brain in Claude Code?

Run `npx skills add n1m21n/Infinite --skill semi-brain -a claude-code`. Or copy the skill folder (.claude/skills/semi-brain in n1m21n/Infinite) into .claude/skills/semi-brain in your project. Claude Code loads it when a task matches its description.

How do I install Semi Brain in Codex?

Run `npx skills add n1m21n/Infinite --skill semi-brain -a codex`. Or copy the skill folder (.claude/skills/semi-brain in n1m21n/Infinite) into .agents/skills/semi-brain in your project. Codex loads it when a task matches its description.

Can I use Semi Brain 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 n1m21n/Infinite --skill semi-brain -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/semi-brain, .gemini/skills/semi-brain, .github/skills/semi-brain and .opencode/skills/semi-brain in your project.

What does Semi Brain need to run?

Going by SKILL.md and its folder, Semi Brain needs the command-line tools its instructions call (python3 and git). Our summary lists: Python 3.

Does Semi Brain access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Semi Brain 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 Semi Brain use?

Semi Brain has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Semi Brain use?

About 2.8k tokens (SKILL.md is roughly 11k 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 Semi Brain?

Skills that share tags, products or a category with Semi Brain: Vercel Composition Patterns (supabase/supabase, 111k stars), Finishing a Development Branch (obra/superpowers, 297k stars), Typescript Advanced Types (rolling-scopes/rsschool-app, 10k stars) and PR Babysitter (openinterpreter/openinterpreter, 69k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Semi Brain?

n1m21n (a GitHub user) maintains it in n1m21n/Infinite, which has 271 GitHub stars. The repository holds 56 skills in this directory. The repository was last updated on October 10, 2026.

Source: n1m21n/Infinite on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.