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Agent skill

Concrete Example

by yuema137 in yuema137/DongbeiGPT

Add a small worked technical example, before/after trace, diagram, or structure-preserving analogy to an explanation.

MITAuto-check passed

Install Concrete Example

skills CLI
$ npx skills add yuema137/DongbeiGPT --skill concrete-example -a claude-code

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

GitHub CLI
$ gh skill install yuema137/DongbeiGPT concrete-example --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/yuema137/DongbeiGPT.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/concrete-example .claude/skills/concrete-example && 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
concrete-example
GitHub stars
100
Token cost
~329 tokens
SKILL.md length
150 words
Files
2 (incl. references)
Skills in repo
5
Repo updated
First seen
Licence
MIT

At a glance

Add a small worked technical example, before/after trace, diagram, or structure-preserving analogy to an explanation.

  • Works in 5 steps: Pick the smallest values that expose the… → Show the before state. → Perform each relevant transition. → …
  • Readers need to see data
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
  • Skip analogy when the real artifact is clearer

What it does

Concrete Example is an agent skill from yuema137/DongbeiGPT. Add a small worked technical example, before/after trace, diagram, or structure-preserving analogy to an explanation. Use when readers need to see data, control, state, or numbers move; skip analogy when the real artifact is clearer.

Its SKILL.md is about 330 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/example-patterns.md`).

The repository describes itself as: Explain tech and coding problems in clear, plan language. The licence is MIT.

When your agent uses it

  • Readers need to see data
  • Skip analogy when the real artifact is clearer

Example prompts

  • “/concrete-example”

Workflow steps

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

  1. Pick the smallest values that expose the distinction.
  2. Show the before state.
  3. Perform each relevant transition.
  4. Show the after state and connect it to the formal term.
  5. State where the example stops matching the general case.

What it can do on your machine

Read from SKILL.md and the folder at commit 3f72262. 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

Concrete Example loads about 329 tokens when it runs, and up to ~497 if it reads all its reference files. Until then it costs about 63 tokens; SKILL.md has 150 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~63
When it runs · the whole SKILL.md, loaded when a task matches
~329
With references · SKILL.md plus every file in references/, read only if the agent opens them
~497

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 yuema137/DongbeiGPT at commit 3f72262, republished under its MIT licence (© yuema137). 150 words, ~329 tokens.

Download SKILL.mdSave it as .claude/skills/concrete-example/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
concrete-example
description
Add a small worked technical example, before/after trace, diagram, or structure-preserving analogy to an explanation. Use when readers need to see data, control, state, or numbers move; skip analogy when the real artifact is clearer.
license
MIT

Concrete Example

Choose one item and trace it through the actual mechanism. Prefer real artifacts—commit graphs, requests, rows, tensors, queues, equations—over household metaphors. For a project-internal design where those artifacts are themselves unfamiliar, a short structural analogy may establish the actors first; immediately map it to the real names and continue with the real trace.

Use this order:

  1. Pick the smallest values that expose the distinction.
  2. Show the before state.
  3. Perform each relevant transition.
  4. Show the after state and connect it to the formal term.
  5. State where the example stops matching the general case.

Do not force an analogy. Use one only when its objects and relationships map cleanly and the mapping is shorter than the mechanism. State the mapping explicitly and stop the analogy before its details diverge. Never let it replace a necessary equation or code path.

Read references/example-patterns.md when selecting a representation.

© yuema137, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file (references) in skills/concrete-example of yuema137/DongbeiGPT.

  • SKILL.md
  • references/example-patterns.md

Open the folder on GitHubat commit 3f72262

Compare with similar skills

Concrete Example 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.

Concrete Example compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Concrete Example this skillyuema137/DongbeiGPT100—~329Automated safety check: PassMIT
Observe Traceruvnet/ruflo74k—~522Automated safety check: NotesMIT
Delegate Workpaperclipai/paperclip99k—~372Automated safety check: PassMIT
Deep Workalirezarezvani/claude-skills28k—~1.5kAutomated safety check: PassMIT
Tracejeremylongshore/tons-of-skills-marketplace2.8k—~5kAutomated safety check: PassMIT
Tracezereight/gitlab-mcp2k1 repos~412Automated safety check: PassMIT

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Questions about Concrete Example

What does Concrete Example do?

Add a small worked technical example, before/after trace, diagram, or structure-preserving analogy to an explanation. Concrete Example is an agent skill from yuema137/DongbeiGPT. Add a small worked technical example, before/after trace, diagram, or structure-preserving analogy to an explanation.

When should I use Concrete Example?

Concrete Example fits situations like: readers need to see data; skip analogy when the real artifact is clearer.

How do I install Concrete Example in Claude Code?

Run `npx skills add yuema137/DongbeiGPT --skill concrete-example -a claude-code`. Or copy the skill folder (skills/concrete-example in yuema137/DongbeiGPT) into .claude/skills/concrete-example in your project. Claude Code loads it when a task matches its description.

How do I install Concrete Example in Codex?

Run `npx skills add yuema137/DongbeiGPT --skill concrete-example -a codex`. Or copy the skill folder (skills/concrete-example in yuema137/DongbeiGPT) into .agents/skills/concrete-example in your project. Codex loads it when a task matches its description.

Can I use Concrete Example 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 yuema137/DongbeiGPT --skill concrete-example -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/concrete-example, .gemini/skills/concrete-example, .github/skills/concrete-example and .opencode/skills/concrete-example in your project.

What does Concrete Example need to run?

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

Does Concrete Example 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 Concrete Example 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 Concrete Example use?

Concrete Example is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Concrete Example use?

About 329 tokens (SKILL.md is roughly 1.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 168 tokens, read only when the agent opens those files.

What are the alternatives to Concrete Example?

Skills that share tags, products or a category with Concrete Example: Observe Trace (ruvnet/ruflo, 74k stars), Delegate Work (paperclipai/paperclip, 99k stars), Deep Work (alirezarezvani/claude-skills, 28k stars) and Trace (jeremylongshore/tons-of-skills-marketplace, 2.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Concrete Example?

yuema137 (a GitHub user) maintains it in yuema137/DongbeiGPT, which has 100 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on September 1, 2026.

Source: yuema137/DongbeiGPT on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.