Agent skill

Agentbrain

by LightHaru in LightHaru/agentbrain

Brain-inspired cognitive architecture. An agent skill from LightHaru/agentbrain.

No licenceAuto-check passedAI & LLM Engineering

Install Agentbrain

skills CLI
$ npx skills add LightHaru/agentbrain --skill agentbrain -a claude-code

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

GitHub CLI
$ gh skill install LightHaru/agentbrain agentbrain --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/LightHaru/agentbrain.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/agentbrain .claude/skills/agentbrain && 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
agentbrain
GitHub stars
106
Token cost
~566 tokens
SKILL.md length
202 words
Files
1
Skills in repo
2
Repo updated
First seen
Licence
None found

At a glance

Brain-inspired cognitive architecture. An agent skill from LightHaru/agentbrain.

  • AI & LLM Engineering work in your project
  • SKILL.md covers Features, Tools and Storage
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Agentbrain is an agent skill from LightHaru/agentbrain. Brain-inspired cognitive architecture. Self-evolving personality, memory, emotions, skill learning, and reward adaptation. Injects brain context into every prompt.

Its SKILL.md is about 570 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 AI & LLM Engineering. It works with TypeScript. The repository describes itself as: 🧠 Brain-inspired cognitive architecture plugin for AI agents — persistent memory, evolving personality, neurochemistry-driven mood, learning from mistakes. Fully local on…

When your agent uses it

  • AI & LLM Engineering work in your project

Example prompts

  • “/agentbrain”

What it can do on your machine

Read from SKILL.md and the folder at commit 4817845. 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

    No scripts in the folder and no shell commands in SKILL.md (its code samples are bash).

    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

Agentbrain loads about 566 tokens when it runs. Until then it costs about 44 tokens; SKILL.md has 202 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~44
When it runs · the whole SKILL.md, loaded when a task matches
~566

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

Without a licence we can't republish the file, so here is its outline and opening line. It has 202 words (~566 tokens).

“Self-evolving AI cognitive architecture with semantic memory, emotion modeling, personality traits, skill learning, and reward systems.”

— opening of SKILL.md by LightHaru
name
agentbrain

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/agentbrain of LightHaru/agentbrain.

Open the folder on GitHubat commit 4817845

Compare with similar skills

Agentbrain 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.

Agentbrain compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Agentbrain this skillLightHaru/agentbrain106—~566Automated safety check: PassNone
Postgres Hybrid Text Searchtimescale/pg-aiguide1.9k—~3.1kAutomated safety check: PassApache-2.0
Recsys Pipeline Architectsickn33/agentic-awesome-skills47k1 repos~1.8kAutomated safety check: PassMIT
Transformers JSsickn33/agentic-awesome-skills47k1 repos~444Automated safety check: PassApache-2.0
Typescript Projectmajiayu000/spellbook287—~3.3kAutomated safety check: PassMIT
Golem Create Agent Instance TSgolemcloud/golem1.5k—~981Automated safety check: PassCustom licence

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Works with

Questions about Agentbrain

What does Agentbrain do?

Brain-inspired cognitive architecture. An agent skill from LightHaru/agentbrain. Agentbrain is an agent skill from LightHaru/agentbrain. Brain-inspired cognitive architecture.

When should I use Agentbrain?

Agentbrain fits situations like: AI & LLM Engineering work in your project.

How do I install Agentbrain in Claude Code?

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

How do I install Agentbrain in Codex?

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

Can I use Agentbrain 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 LightHaru/agentbrain --skill agentbrain -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/agentbrain, .gemini/skills/agentbrain, .github/skills/agentbrain and .opencode/skills/agentbrain in your project.

What does Agentbrain need to run?

SKILL.md names no scripts, command-line tools or credentials: Agentbrain is instructions for the agent only.

Does Agentbrain 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 Agentbrain 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 Agentbrain use?

No licence was found for Agentbrain or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Agentbrain use?

About 566 tokens (SKILL.md is roughly 2.3k 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 Agentbrain?

Skills that share tags, products or a category with Agentbrain: Postgres Hybrid Text Search (timescale/pg-aiguide, 1.9k stars), Recsys Pipeline Architect (sickn33/agentic-awesome-skills, 47k stars), Transformers JS (sickn33/agentic-awesome-skills, 47k stars) and Typescript Project (majiayu000/spellbook, 287 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Agentbrain?

LightHaru (a GitHub user) maintains it in LightHaru/agentbrain, which has 106 GitHub stars. The repository holds 2 skills in this directory. The repository was last updated on August 13, 2026.

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