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Agent skill

Abstraction

by EpicenterHQ in EpicenterHQ/epicenter

Shape a complex idea, workflow, or design around the judgment a person needs to make.

Custom licenceAuto-check passed

Install Abstraction

skills CLI
$ npx skills add EpicenterHQ/epicenter --skill abstraction -a claude-code

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

GitHub CLI
$ gh skill install EpicenterHQ/epicenter abstraction --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/EpicenterHQ/epicenter.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/abstraction .claude/skills/abstraction && 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
abstraction
GitHub stars
4.8k
Token cost
~445 tokens
SKILL.md length
227 words
Files
1
Skills in repo
65
Repo updated
First seen
Licence
Custom licence

At a glance

Shape a complex idea, workflow, or design around the judgment a person needs to make.

  • An explanation obscures its point
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Makes the user carry unnecessary complexity
  • Routine execution of a clear request

What it does

Abstraction is an agent skill from EpicenterHQ/epicenter. Shape a complex idea, workflow, or design around the judgment a person needs to make. Use when an explanation obscures its point or makes the user carry unnecessary complexity. Do not use for routine execution of a clear request.

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.

The repository describes itself as: Open-source, local-first apps.

When your agent uses it

  • An explanation obscures its point
  • Makes the user carry unnecessary complexity
  • Routine execution of a clear request

Example prompts

  • “/abstraction”

What it can do on your machine

Read from SKILL.md and the folder at commit 5b4bb69. 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.

    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

Abstraction loads about 445 tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 227 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~60
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

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 227 words (~445 tokens).

“Make the model easy to recognize and judge without making it less true. The right amount of detail is what this person needs to understand, correct, or act on it; brevity alone does not reduce their work.”

— opening of SKILL.md by EpicenterHQ, Custom licence
name
abstraction

Read the full SKILL.md on GitHub

Files

Just SKILL.md in .agents/skills/abstraction of EpicenterHQ/epicenter.

Open the folder on GitHubat commit 5b4bb69

Compare with similar skills

Abstraction 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.

Abstraction compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Abstraction this skillEpicenterHQ/epicenter4.8k—~445Automated safety check: PassCustom licence
Abstractbrycewang-stanford/Auto-Empirical-Research-Skills4.5k—~495Automated safety check: NotesCustom licence
Idea Darwinsickn33/agentic-awesome-skills47k2 repos~1.1kAutomated safety check: PassMIT
Idea Refinementaddyosmani/agent-skills103k6 repos~2kAutomated safety check: PassMIT
Same Idea Both Platformssickn33/agentic-awesome-skills47k1 repos~1.4kAutomated safety check: PassMIT
Idea Evaluatorsickn33/agentic-awesome-skills47k1 repos~930Automated safety check: PassMIT

Similar skills

  • Abstract

    brycewang-stanford/Auto-Empirical-Research-Skills

    Reads the manuscript and notebooks to generate a structured abstract.

    4.5k GitHub stars~495 tokensUpdated 3 days ago
    Auto-check: notes

  • Idea Darwin

    sickn33/agentic-awesome-skills

    Darwinian idea evolution engine — toss rough ideas onto an evolution island, let them compete, crossbreed, and mutate through structured rounds to surface your strongest concepts.

    47k GitHub starsUsed in 2 repos~1.1k tokens
    Auto-check passed

  • Idea Refinement

    addyosmani/agent-skills

    Guides a conversation that takes a vague idea through divergent and convergent thinking and ends in a markdown one-pager covering scope and assumptions.

    103k GitHub starsUsed in 6 repos~2k tokens
    Agent WorkflowsAuto-check passed

  • Same Idea Both Platforms

    sickn33/agentic-awesome-skills

    Write one idea as a Twitter/X post and a LinkedIn post that read as written separately, not pasted twice.

    47k GitHub starsUsed in 1 repo~1.4k tokens
    Writing & ContentAuto-check passed

  • Idea Evaluator

    sickn33/agentic-awesome-skills

    Evaluates an idea by hosting a multi-turn debate between a Pro and Con agent, delivering a final verdict on whether it's worth pursuing.

    47k GitHub starsUsed in 1 repo~930 tokens
    Auto-check passed

  • Idea Autopsy

    sickn33/agentic-awesome-skills

    Autopsy a business idea before you build it: kill-list check, five hard filters, a free-AI one-prompt test, live ad-market verification, and a verdict with a named kill-pattern.

    47k GitHub starsUsed in 1 repo~1.6k tokens
    Auto-check passed

More from EpicenterHQ/epicenter

All 65 skills in this repo

  • Agent Instructions

    EpicenterHQ/epicenter

    Write and maintain repository guidance across AGENTS.md, CLAUDE.md, and .agents/skills.

    4.8k GitHub stars~1.2k tokensUpdated today
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  • Consult Claude

    EpicenterHQ/epicenter

    Assign Claude Code a read-only investigation, recommendation, or finished text draft.

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  • Better Auth Security Best Practices

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    Better Auth security hardening: rate limits, secrets, CSRF, trusted origins, cookies, sessions, OAuth tokens, and audit logging.

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  • Cohesion Over Testability

    EpicenterHQ/epicenter

    Collapse test-shaped production boundaries while preserving behavior and coverage.

    4.8k GitHub stars~2k tokensUpdated today
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  • Collapse Pass

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    Remove indirection that does not earn its boundary across a diff or package.

    4.8k GitHub stars~2k tokensUpdated today
    Auto-check passed

  • Error Handling

    EpicenterHQ/epicenter

    Apply Wellcrafted Result patterns to fallible operations and preserve failures at boundaries.

    4.8k GitHub stars~1.4k tokensUpdated today
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Questions about Abstraction

What does Abstraction do?

Shape a complex idea, workflow, or design around the judgment a person needs to make. Abstraction is an agent skill from EpicenterHQ/epicenter. Shape a complex idea, workflow, or design around the judgment a person needs to make.

When should I use Abstraction?

Abstraction fits situations like: an explanation obscures its point; makes the user carry unnecessary complexity; routine execution of a clear request.

How do I install Abstraction in Claude Code?

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

How do I install Abstraction in Codex?

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

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

What does Abstraction need to run?

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

Does Abstraction 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 Abstraction 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 Abstraction use?

Abstraction 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 Abstraction 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 Abstraction?

Skills that share tags, products or a category with Abstraction: Abstract (brycewang-stanford/Auto-Empirical-Research-Skills, 4.5k stars), Idea Darwin (sickn33/agentic-awesome-skills, 47k stars), Idea Refinement (addyosmani/agent-skills, 103k stars) and Same Idea Both Platforms (sickn33/agentic-awesome-skills, 47k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Abstraction?

EpicenterHQ (a GitHub organization) maintains it in EpicenterHQ/epicenter, which has 4,821 GitHub stars. The repository holds 65 skills in this directory. The repository was last updated on October 8, 2026.

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