Minimizing Ty Ecosystem Changes
astral-sh/ruff
A skill your agent uses when a user says "minimize this ty ecosystem change", "reproduce this ecosystem result", "investigate a primer difference", "investigate a mypyprimer difference"…
Draw or edit a Practical Messaging figure with tools/diagram.py — the element vocabulary, the legibility arithmetic (compact, readsat, the 18pt floor, aspect), what lintfigures.py cannot see, the…
Install Figure Drawing
$ npx skills add iancooper/practical-messaging --skill figure-drawing -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install iancooper/practical-messaging figure-drawing --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/iancooper/practical-messaging.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/figure-drawing .claude/skills/figure-drawing && 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 "figure-drawing" agent skill from https://github.com/iancooper/practical-messaging/tree/main/.claude/skills/figure-drawing into .claude/skills/figure-drawing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "figure-drawing", 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/iancooper/practical-messaging/tree/main/.claude/skills/figure-drawingType 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 iancooper/practical-messaging --skill figure-drawing -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install iancooper/practical-messaging figure-drawing --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/iancooper/practical-messaging.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.claude/skills/figure-drawing .agents/skills/figure-drawing && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "figure-drawing" agent skill from https://github.com/iancooper/practical-messaging/tree/main/.claude/skills/figure-drawing into .agents/skills/figure-drawing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "figure-drawing", 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 iancooper/practical-messaging --skill figure-drawing -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install iancooper/practical-messaging figure-drawing --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/iancooper/practical-messaging.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.claude/skills/figure-drawing .cursor/skills/figure-drawing && 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 "figure-drawing" agent skill from https://github.com/iancooper/practical-messaging/tree/main/.claude/skills/figure-drawing into .cursor/skills/figure-drawing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "figure-drawing", 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/iancooper/practical-messaging.git --path .claude/skills/figure-drawing--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 iancooper/practical-messaging --skill figure-drawing -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install iancooper/practical-messaging figure-drawing --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/iancooper/practical-messaging.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.claude/skills/figure-drawing .gemini/skills/figure-drawing && 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 "figure-drawing" agent skill from https://github.com/iancooper/practical-messaging/tree/main/.claude/skills/figure-drawing into .gemini/skills/figure-drawing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "figure-drawing", 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 iancooper/practical-messaging figure-drawingInstalls 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 iancooper/practical-messaging --skill figure-drawing -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/iancooper/practical-messaging.git skills-src && mkdir -p .github/skills && cp -r skills-src/.claude/skills/figure-drawing .github/skills/figure-drawing && 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 "figure-drawing" agent skill from https://github.com/iancooper/practical-messaging/tree/main/.claude/skills/figure-drawing into .github/skills/figure-drawing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "figure-drawing", 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 iancooper/practical-messaging --skill figure-drawing -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install iancooper/practical-messaging figure-drawing --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/iancooper/practical-messaging.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.claude/skills/figure-drawing .opencode/skills/figure-drawing && 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 "figure-drawing" agent skill from https://github.com/iancooper/practical-messaging/tree/main/.claude/skills/figure-drawing into .opencode/skills/figure-drawing/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "figure-drawing", 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
figure-drawing- GitHub stars
- 101
- Token cost
- ~4.8k tokens
- SKILL.md length
- 2,971 words
- Files
- 1
- Skills in repo
- 3
- Repo updated
- First seen
- Licence
- None found
At a glance
Draw or edit a Practical Messaging figure with tools/diagram.py — the element vocabulary, the legibility arithmetic (compact, readsat, the 18pt floor, aspect), what lintfigures.py cannot see, the…
- Works in 12 steps: A floor in canvas units is not a… → Aspect is the other half. A 16:9 slide… → ⚑ On a height-fitted figure, width is… → …
- Changing any figure in the twelve families
- SKILL.md covers ⚑ Rule zero: look at the PNG, What the checkers each measure…, The legibility arithmetic and Colour, and what a label is, plus 6 more sections
- Calls git, python3 and kind
What it does
Figure Drawing is an agent skill from iancooper/practical-messaging. Draw or edit a Practical Messaging figure with tools/diagram.py — the element vocabulary, the legibility arithmetic (compact, readsat, the 18pt floor, aspect), what lintfigures.py cannot see, the composition test, and the defects that have shipped invisible in the source. Use when adding or changing any figure in the twelve families or the reference cards, editing tools/diagram.py, or acting on a readsat / lint finding.
Its SKILL.md is about 4.8k 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, covering Linting and formatting.
When your agent uses it
- Changing any figure in the twelve families
- The reference cards
- Editing tools/diagram.py
- Acting on a readsat / lint finding
Example prompts
- “/figure-drawing”
Workflow steps
12 steps, taken from the first numbered list in SKILL.md.
- A floor in canvas units is not a legibility guarantee. A figure is scaled to fit its
- Aspect is the other half. A 16:9 slide leaves about 2.2 : 1 of usable area. Wider than
- ⚑ On a height-fitted figure, width is FREE. Widening costs no legibility at all, so
- ⚑ But width is free and size is not: they are different questions. A figure-slide stage
- compact(target) means max(w, 2.2 × h) and shrinks the geometry, leaving the type
- Call compact() from the family's figure decorator, not from main() — otherwise the
- ⚑ K_FLOOR = 0.55 fails silently. A figure drawn one row taller than it needs can want a
- The label-fit clamp is (advance + 12) / w, so w is the lever, not the word. Widen the
- ⚑ The floor is per-face. Plex Sans's x-height is 0.516em against Caveat's 0.400, so
- lx / ly are text-space and do not scale, so they are the only nudge that means the
- ⚑ Two pieces of text cannot be spaced in raw units. Their positions scale and their
- A harder compact target is a licence to spend width, not to shorten labels.
What it can do on your machine
Read from SKILL.md and the folder at commit 5d0ea23. 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:
gitpython3kind
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
Figure Drawing loads about 4.8k tokens when it runs. Until then it costs about 110 tokens; SKILL.md has 2,971 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 2,971 words (~4,763 tokens).
“tools/diagram.py emits both the editable .drawio and the .png from one definition, so they cannot drift. tools/README.md has the full API and a per-family note; this is the judgement that goes with it.”
- name
- figure-drawing
Files
Just SKILL.md in .claude/skills/figure-drawing of iancooper/practical-messaging.
Open the folder on GitHubat commit 5d0ea23
Compare with similar skills
Figure Drawing 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 |
|---|---|---|---|---|---|---|
| Figure Drawing this skilliancooper/practical-messaging | 101 | — | ~4.8k | Automated safety check: Pass | None | |
| Minimizing Ty Ecosystem Changesastral-sh/ruff | 50k | — | ~4.6k | Automated safety check: Pass | MIT | |
| Install Anti-Slop Oxlint Rulesdmmulroy/anti-slop | 5.3k | — | ~2.2k | Automated safety check: Pass | MIT | |
| Babysit PR To Pass CIsgl-project/sglang | 37k | 2 repos | ~3k | Automated safety check: Pass | Apache-2.0 | |
| Rust Best Practicesfarm-fe/farm | 5.6k | 3 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Summarise Ecosystem Resultsastral-sh/ruff | 50k | — | ~2.2k | Automated safety check: Pass | MIT |
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Start and persistently pursue a goal to babysit an SGLang pull request until selected GitHub Actions workflows pass on the latest PR head.
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Summarise Ecosystem Results
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More from iancooper/practical-messaging
Review Sheet
iancooper/practical-messaging
Build and publish a Practical Messaging artwork review sheet — the page Ian reviews figures on, because he cannot see PNGs in a terminal.
Deck Build
iancooper/practical-messaging
Build the Practical Messaging .pptx decks from outlines/ — the house Markdown grammar, what builddeck.py does with each block, how figures and photographs are laid out, and how to answer an overflow.
Related
Categories
Questions about Figure Drawing
What does Figure Drawing do?
Draw or edit a Practical Messaging figure with tools/diagram.py — the element vocabulary, the legibility arithmetic (compact, readsat, the 18pt floor, aspect), what lintfigures.py cannot see, the…. Figure Drawing is an agent skill from iancooper/practical-messaging.py cannot see, the composition test, and the defects that have shipped invisible in the source.
When should I use Figure Drawing?
Figure Drawing fits situations like: changing any figure in the twelve families; the reference cards; editing tools/diagram.py; acting on a readsat / lint finding.
How do I install Figure Drawing in Claude Code?
Run `npx skills add iancooper/practical-messaging --skill figure-drawing -a claude-code`. Or copy the skill folder (.claude/skills/figure-drawing in iancooper/practical-messaging) into .claude/skills/figure-drawing in your project. Claude Code loads it when a task matches its description.
How do I install Figure Drawing in Codex?
Run `npx skills add iancooper/practical-messaging --skill figure-drawing -a codex`. Or copy the skill folder (.claude/skills/figure-drawing in iancooper/practical-messaging) into .agents/skills/figure-drawing in your project. Codex loads it when a task matches its description.
Can I use Figure Drawing 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 iancooper/practical-messaging --skill figure-drawing -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/figure-drawing, .gemini/skills/figure-drawing, .github/skills/figure-drawing and .opencode/skills/figure-drawing in your project.
What does Figure Drawing need to run?
Going by SKILL.md and its folder, Figure Drawing needs the command-line tools its instructions call (git, python3 and kind).
Does Figure Drawing 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 Figure Drawing 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 Figure Drawing use?
No licence was found for Figure Drawing or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Figure Drawing use?
About 4.8k tokens (SKILL.md is roughly 19k 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 Figure Drawing?
Skills that share tags, products or a category with Figure Drawing: Minimizing Ty Ecosystem Changes (astral-sh/ruff, 50k stars), Install Anti-Slop Oxlint Rules (dmmulroy/anti-slop, 5.3k stars), Babysit PR To Pass CI (sgl-project/sglang, 37k stars) and Rust Best Practices (farm-fe/farm, 5.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Figure Drawing?
iancooper (a GitHub user) maintains it in iancooper/practical-messaging, which has 101 GitHub stars. The repository holds 3 skills in this directory. The repository was last updated on September 13, 2026.
Source: iancooper/practical-messaging on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.