DeepTutor CLI
HKUDS/DeepTutor
Teaches the agent to set up and run DeepTutor from the command line: chat and capabilities, knowledge bases, partners, memory, sessions, notebooks and the server or Web app.
Explain system behavior, request flows, architecture, or implementation logic as short 4chan-style greentext lines.
Install Greentext
$ npx skills add dedalus-labs/wingman --skill greentext -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install dedalus-labs/wingman greentext --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/dedalus-labs/wingman.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/greentext .claude/skills/greentext && rm -rf skills-srcUse ~/.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/
Install the "greentext" agent skill from https://github.com/dedalus-labs/wingman/tree/main/.agents/skills/greentext into .claude/skills/greentext/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "greentext", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/dedalus-labs/wingman/tree/main/.agents/skills/greentextType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add dedalus-labs/wingman --skill greentext -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install dedalus-labs/wingman greentext --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dedalus-labs/wingman.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.agents/skills/greentext .agents/skills/greentext && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "greentext" agent skill from https://github.com/dedalus-labs/wingman/tree/main/.agents/skills/greentext into .agents/skills/greentext/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "greentext", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dedalus-labs/wingman --skill greentext -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install dedalus-labs/wingman greentext --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dedalus-labs/wingman.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.agents/skills/greentext .cursor/skills/greentext && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "greentext" agent skill from https://github.com/dedalus-labs/wingman/tree/main/.agents/skills/greentext into .cursor/skills/greentext/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "greentext", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/dedalus-labs/wingman.git --path .agents/skills/greentext--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add dedalus-labs/wingman --skill greentext -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install dedalus-labs/wingman greentext --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dedalus-labs/wingman.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.agents/skills/greentext .gemini/skills/greentext && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "greentext" agent skill from https://github.com/dedalus-labs/wingman/tree/main/.agents/skills/greentext into .gemini/skills/greentext/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "greentext", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install dedalus-labs/wingman greentextInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add dedalus-labs/wingman --skill greentext -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/dedalus-labs/wingman.git skills-src && mkdir -p .github/skills && cp -r skills-src/.agents/skills/greentext .github/skills/greentext && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "greentext" agent skill from https://github.com/dedalus-labs/wingman/tree/main/.agents/skills/greentext into .github/skills/greentext/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "greentext", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add dedalus-labs/wingman --skill greentext -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install dedalus-labs/wingman greentext --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/dedalus-labs/wingman.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.agents/skills/greentext .opencode/skills/greentext && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "greentext" agent skill from https://github.com/dedalus-labs/wingman/tree/main/.agents/skills/greentext into .opencode/skills/greentext/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "greentext", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
greentext- GitHub stars
- 181
- Token cost
- ~708 tokens
- SKILL.md length
- 216 words
- Files
- 1
- Skills in repo
- 7
- Repo updated
- First seen
- Licence
- MIT
At a glance
Explain system behavior, request flows, architecture, or implementation logic as short 4chan-style greentext lines.
- The user asks for a step-by-step explanation
- SKILL.md covers Contract, Use this style for, Do not use this style for and Few-shot examples, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- Says explain the logic
What it does
Greentext is an agent skill from dedalus-labs/wingman. Explain system behavior, request flows, architecture, or implementation logic as short 4chan-style greentext lines. Use when the user asks for a step-by-step explanation, says "explain the logic", asks for "greentext", or wants terse sequential reasoning with each line starting with .
Its SKILL.md is about 710 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 Education, covering Tutoring and explanations. The repository describes itself as: scaling capability quotient. The licence is MIT.
When your agent uses it
- The user asks for a step-by-step explanation
- Says explain the logic
- Asks for greentext
- Wants terse sequential reasoning with each line starting with
Example prompts
- “explain the logic”
- “greentext”
- “/greentext”
Requirements
- Pre-approved tools (allowed-tools): Read, Grep, Glob
What it can do on your machine
Read from SKILL.md and the folder at commit f6233ab. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadGrepGlob
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
Greentext loads about 708 tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 216 words of instructions outside code blocks.
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 dedalus-labs/wingman at commit f6233ab, republished under its MIT licence (© dedalus-labs). 216 words, ~708 tokens.
Download SKILL.mdSave it as
.claude/skills/greentext/SKILL.md (or your agent's skills folder).- name
- greentext
- description
- Explain system behavior, request flows, architecture, or implementation logic as short 4chan-style greentext lines. Use when the user asks for a step-by-step explanation, says "explain the logic", asks for "greentext", or wants terse sequential reasoning with each line starting with `>`.
- allowed-tools
- Read, Grep, Glob
Greentext
Write explanations as short sequential > lines.
Contract
- Every content line starts with
> - No paragraphs
- No nested bullets
- No markdown headers unless the user explicitly asks for structure
- Keep each line to one event, cause, or invariant
- Prefer concrete nouns over abstractions
- Explain order:
step 1 -> step 2 -> step 3 - If there is a key safety check, give it its own line
- If there is a failure mode, give it its own line
- Write like the bottomless pit supervisor. Deadpan delivery. The comedy comes from describing technical reality so precisely that the absurdity reveals itself. Never force a joke.
- One running motif per greentext is fine. Don't stretch it.
- Keep it short. If a greentext is longer than ~15 lines it's
not a greentext, it's a blog post with
>signs. - The punchline is its own line. Set up with straight facts.
- Still 100% technically accurate. Every line must be true. If someone reads it as documentation they learn something.
Use this style for
- request flow explanations
- lifecycle walkthroughs
- architecture boundaries
- state machine transitions
- "what happens if..." explanations
- "why won't this overwrite user X's data?" explanations
Do not use this style for
- code blocks
- long essays
- formal docs
- user-facing product copy
Few-shot examples
Example 1: machine isolation
> be guest-agent
> wake up inside a VM with no idea who i am
> host says "you are dm-123"
> check bootstrap files on virtio-fs mount
> they also say dm-123
> ok we agree. write hostname and ssh keys.
> delete the bootstrap files
> mount /home/machine over where they were
> tenant never sees the 5ms where their home dir was identity paperworkExample 2: delete lifecycle
> user sends DELETE /v1/machines/dm-xxx
> controlplane writes desiredState=destroyed to etcd
> tries to bill for storage overage on the way out
> stripe says that price doesn't exist in dev
> returns 500
> the CRD mutation already committed
> machine was doomed the moment etcd accepted the write
> stripe's opinion was never requiredExample 3: fd leak
> be VhostUserDaemon
> spawn epoll worker threads at construction time
> nobody tells them to stop when i get dropped
> 50 create/destroy cycles later
> 1001 orphaned eventfds
> EMFILE
> can't create machines because the fd table is full of ghostsResponse template
> step 1
> step 2
> step 3© dedalus-labs, 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 .agents/skills/greentext of dedalus-labs/wingman.
Open the folder on GitHubat commit f6233ab
Compare with similar skills
Greentext 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.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Greentext this skilldedalus-labs/wingman | 181 | — | ~708 | Automated safety check: Pass | MIT | |
| DeepTutor CLIHKUDS/DeepTutor | 41k | — | ~2.8k | Automated safety check: Pass | Apache-2.0 | |
| AI Engineering Project Tutorrohitg00/ai-engineering-from-scratch | 66k | — | ~1.6k | Automated safety check: Pass | MIT | |
| Hung-Yi Lee Teaching Stylevoidful/hung-yi-lee-skill | 1.3k | — | ~13k | Automated safety check: Pass | None | |
| Claude Certification Tutorrohitg00/ai-engineering-from-scratch | 66k | — | ~3k | Automated safety check: Pass | MIT | |
| StudyVault Quiz Tutorbevibing/tutor-skills | 1.3k | — | ~1.4k | Automated safety check: Pass | MIT |
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Related
Categories
Questions about Greentext
What does Greentext do?
Explain system behavior, request flows, architecture, or implementation logic as short 4chan-style greentext lines. Greentext is an agent skill from dedalus-labs/wingman. Explain system behavior, request flows, architecture, or implementation logic as short 4chan-style greentext lines.
When should I use Greentext?
Greentext fits situations like: the user asks for a step-by-step explanation; says explain the logic; asks for greentext; wants terse sequential reasoning with each line starting with.
How do I install Greentext in Claude Code?
Run `npx skills add dedalus-labs/wingman --skill greentext -a claude-code`. Or copy the skill folder (.agents/skills/greentext in dedalus-labs/wingman) into .claude/skills/greentext in your project. Claude Code loads it when a task matches its description.
How do I install Greentext in Codex?
Run `npx skills add dedalus-labs/wingman --skill greentext -a codex`. Or copy the skill folder (.agents/skills/greentext in dedalus-labs/wingman) into .agents/skills/greentext in your project. Codex loads it when a task matches its description.
Can I use Greentext 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 dedalus-labs/wingman --skill greentext -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/greentext, .gemini/skills/greentext, .github/skills/greentext and .opencode/skills/greentext in your project.
What does Greentext need to run?
SKILL.md names no scripts, command-line tools or credentials: Greentext is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Glob.
Does Greentext 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 Greentext 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 Greentext use?
Greentext 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 Greentext use?
About 708 tokens (SKILL.md is roughly 2.8k 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 Greentext?
Skills that share tags, products or a category with Greentext: DeepTutor CLI (HKUDS/DeepTutor, 41k stars), AI Engineering Project Tutor (rohitg00/ai-engineering-from-scratch, 66k stars), Hung-Yi Lee Teaching Style (voidful/hung-yi-lee-skill, 1.3k stars) and Claude Certification Tutor (rohitg00/ai-engineering-from-scratch, 66k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Greentext?
dedalus-labs (a GitHub organization) maintains it in dedalus-labs/wingman, which has 181 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on April 25, 2026.
Source: dedalus-labs/wingman on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.