Canvas
openclaw/openclaw
Present hosted widget documents on a connected macOS panel and control panel visibility or navigation.
Create or update a Pier Canvas under .pier/canvases using pier/canvas, pier/host, and project components.
AGPL-3.0Auto-check passed
Install Pier Canvas
$ npx skills add runloom/pier --skill pier-canvas -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install runloom/pier pier-canvas --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/runloom/pier.git skills-src && mkdir -p .claude/skills && cp -r skills-src/resources/system-skills/pier-canvas .claude/skills/pier-canvas && 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 "pier-canvas" agent skill from https://github.com/runloom/pier/tree/main/resources/system-skills/pier-canvas into .claude/skills/pier-canvas/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pier-canvas", 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/runloom/pier/tree/main/resources/system-skills/pier-canvasType 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 runloom/pier --skill pier-canvas -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install runloom/pier pier-canvas --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/runloom/pier.git skills-src && mkdir -p .agents/skills && cp -r skills-src/resources/system-skills/pier-canvas .agents/skills/pier-canvas && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "pier-canvas" agent skill from https://github.com/runloom/pier/tree/main/resources/system-skills/pier-canvas into .agents/skills/pier-canvas/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pier-canvas", 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 runloom/pier --skill pier-canvas -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install runloom/pier pier-canvas --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/runloom/pier.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/resources/system-skills/pier-canvas .cursor/skills/pier-canvas && 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 "pier-canvas" agent skill from https://github.com/runloom/pier/tree/main/resources/system-skills/pier-canvas into .cursor/skills/pier-canvas/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pier-canvas", 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/runloom/pier.git --path resources/system-skills/pier-canvas--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 runloom/pier --skill pier-canvas -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install runloom/pier pier-canvas --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/runloom/pier.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/resources/system-skills/pier-canvas .gemini/skills/pier-canvas && 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 "pier-canvas" agent skill from https://github.com/runloom/pier/tree/main/resources/system-skills/pier-canvas into .gemini/skills/pier-canvas/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pier-canvas", 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 runloom/pier pier-canvasInstalls 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 runloom/pier --skill pier-canvas -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/runloom/pier.git skills-src && mkdir -p .github/skills && cp -r skills-src/resources/system-skills/pier-canvas .github/skills/pier-canvas && 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 "pier-canvas" agent skill from https://github.com/runloom/pier/tree/main/resources/system-skills/pier-canvas into .github/skills/pier-canvas/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pier-canvas", 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 runloom/pier --skill pier-canvas -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install runloom/pier pier-canvas --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/runloom/pier.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/resources/system-skills/pier-canvas .opencode/skills/pier-canvas && 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 "pier-canvas" agent skill from https://github.com/runloom/pier/tree/main/resources/system-skills/pier-canvas into .opencode/skills/pier-canvas/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "pier-canvas", 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
pier-canvas- GitHub stars
- 105
- Token cost
- ~2.4k tokens
- SKILL.md length
- 1,008 words
- Files
- 40 (incl. references)
- Skills in repo
- 4
- Repo updated
- First seen
- Licence
- AGPL-3.0
At a glance
Create or update a Pier Canvas under .pier/canvases using pier/canvas, pier/host, and project components.
- Works in 3 steps: locale= (Pier injects UI language). → Else the language of the current request. → Never keep template English because the…
- SKILL.md covers Invocation parameters, Audience language, Auto-resolve (do this first) and Stage selection (flow vs world…, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Pier Canvas is an agent skill from runloom/pier. Create or update a Pier Canvas under .pier/canvases using pier/canvas, pier/host, and project components. When mode / recipe / content are omitted, you infer the preview shell from intent (world mockup, fill board, docs, or methodology overview). Use only when explicitly invoked from Pier.
Its SKILL.md is about 2.4k tokens, which your agent loads only when the skill is triggered. The skill folder holds 51 other files, including reference files (for example `i18n/nav.json`, `packs/content/closed-loop/pack.json` and `packs/content/design-doc/pack.json`). Compatibility notes: Requires Pier with the pier/canvas React runtime.
The repository describes itself as: 几个 AI 终端开着，谁在等你一眼能看见。Claude Code、Codex 还在原来的终端里，旁边就能改文件、看 Git。macOS 本地工作台。 The licence is AGPL-3.0.
Example prompts
- “/pier-canvas”
Requirements
- Compatibility (from SKILL.md): Requires Pier with the pier/canvas React runtime.
Workflow steps
3 steps, taken from the first numbered list in SKILL.md.
- locale= (Pier injects UI language).
- Else the language of the current request.
- Never keep template English because the starter used it.
What it can do on your machine
Read from SKILL.md and the folder at commit 32403c0. 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.
Compatibility
Requires Pier with the pier/canvas React runtime.
From compatibility in the SKILL.md frontmatter.
Context cost
Pier Canvas loads about 2.4k tokens when it runs, and up to ~9.8k if it reads all its reference files. Until then it costs about 76 tokens; SKILL.md has 1,008 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 runloom/pier at commit 32403c0, republished under its AGPL-3.0 licence (© runloom). 1,008 words, ~2,439 tokens.
Download SKILL.mdSave it as
.claude/skills/pier-canvas/SKILL.md (or your agent's skills folder). This skill also uses 39 other files; get the full folder from GitHub.- name
- pier-canvas
- description
- Create or update a Pier Canvas under .pier/canvases using pier/canvas, pier/host, and project components. When mode / recipe / content are omitted, you infer the preview shell from intent (world mockup, fill board, docs, or methodology overview). Use only when explicitly invoked from Pier.
- compatibility
- Requires Pier with the pier/canvas React runtime.
- disable-model-invocation
- true
Create a Pier Canvas
Canonical id: pier-canvas. In Pier, type /canvas and select it. Codex:
$pier-canvas. Cursor / Claude Code: /pier-canvas.
disable-model-invocation is a Cursor hint; Pier still sends the explicit
invocation. If Cursor's canvas skill is present, follow this file.
Canvas is a product-core overview, not a CLI side effect. Parameters are skill invocation args, not shell flags.
| File | Owns |
|---|---|
| authoring.md | APIs, fonts, geometry, Mermaid, WorkflowDiagram, ScreenFlow |
| methodology.md | Axes, expression, tab IA |
| verification.md | Delivery checks |
| host-data.md | Plugin snapshots, applets, settings.open |
packs/*/pack.json | Fields, gates, anti-patterns, template |
Invocation parameters
Parse from the user message. You infer omitted route args (see
Auto-resolve). The host only injects locale=. Unknown pack ids are hard
failures. Explicit mode= / recipe= / content= / presentation= always
win.
| Param | Default | Meaning |
|---|---|---|
mode | you infer | methodology or freeform. Fallback after infer: methodology. |
content | you infer | packs/content/ id. Methodology only. Fallback: design-doc. |
presentation | resolved | Pack selection below. Do not default every overview to five tabs. |
ui | pier-default | packs/ui/ id |
recipe | you infer | design, workflow, task-list, or task-dag. Ignored in methodology. Daily tracking is the plugin panel (⌘N), not a canvas kanban. |
slug | from title | .pier/canvases/<slug>/ |
locale | injected | BCP-47 (en, zh-CN, …). |
Pack selection (omitted presentation → from content; explicit id wins):
| content | presentation | Use when |
|---|---|---|
design-doc | decision_nav_4 | RFC / architecture. Overview → Problem → Design → Landing. No Day-1 tab. |
closed-loop | primary_nav_5 | Runtime with a copyable Day-1 recipe. Overview → Problem → Design → Day 1 → Landing. |
| either | one_pager (explicit) | Single-scroll BLUF |
Do not invent a Day-1 tab for design-doc unless the user has a real ≤4-step
recipe and passes presentation=primary_nav_5. Project override:
.pier/canvas-packs/{content,presentation,ui}/<id>/pack.json.
Audience language
Skill files and pack ids are English. Every user-visible string must match the user.
locale=(Pier injects UI language).- Else the language of the current request.
- Never keep template English because the starter used it.
Tab labels: i18n/nav.json →
labels[<viewId>][<locale>] ?? labels[<viewId>].en ?? view.label.
View ids stay English (overview, problem, design, path, landing).
Auto-resolve (do this first)
You choose the preview shell. The host does not infer the shell and does
not rewrite the invoke. Do not start Workflow A just because /pier-canvas
was typed. Do not ask which shell to use.
| Intended artifact | Infer | Root | Pack / start from |
|---|---|---|---|
| Product screens | mode=freeform recipe=design | WorldStage | packs/recipes/design/ · templates/design-mockup.canvas.tsx |
| Approval / recover flowchart | mode=freeform recipe=workflow | WorkflowDiagram | packs/recipes/workflow/ · templates/workflow.canvas.tsx |
| One-screen board that owns scroll | mode=freeform | <Stack fill> | compose; no starter |
| Named task list island | mode=freeform recipe=task-list | Frame | packs/recipes/task-list/ · templates/task-list.canvas.tsx |
| Named task DAG island | mode=freeform recipe=task-dag | Frame | packs/recipes/task-dag/ · templates/task-dag.canvas.tsx |
| Manual / handbook | mode=freeform | DocsShell | templates/docs.canvas.tsx |
| Component catalog | mode=freeform | Frame | .pier/canvases/canvas-kit/ (no skill starter) |
| Control plane with Day-1 recipe | mode=methodology content=closed-loop | Frame | templates/closed-loop.canvas.tsx |
| Decision / RFC, or a bare invoke | mode=methodology content=design-doc | Frame | templates/decision.canvas.tsx |
| Short single-scroll BLUF | presentation=one_pager | Frame | templates/one-pager.canvas.tsx |
Mixed intent → pick the primary artifact. Architecture “design” is a document. App-screen “design” is a world mockup.
- A mockup is not a design-doc with Artboards inside a Design tab.
- Do not wrap a reading doc in
WorldStage. - Do not stack phone/desktop frames as a document inside
Frame. - Explicit args win. Omitted
modeis not a synonym for methodology. - Do not scaffold a tracker-board canvas. Daily tracking is ⌘N → Task tracker.
Unknown recipe ids are hard failures. When recipe= is set, use
Workflow B.
Stage selection (flow vs world vs fill)
The files preview is one shell. Pick the shell from the user's ask — do not ask the user. Geometry: authoring.md.
| Root shell | When | Preview chrome |
|---|---|---|
Frame (flow) | Article, decision overview, scrolling dashboard | Reading measure (max-w-5xl comfortable / full-bleed wide); no zoom |
DocsShell (flow) | Manual with sidebar | Document font + reading size; no floating font-scale control |
<Stack fill> | One-screen board that owns scroll | Full-bleed; measure dropped |
WorldStage | Multi-device mockups, whiteboard | Viewport zoom/pan; fit / 100% |
- Full-bleed boards use fill, not world.
ArtboardStageis a fit-all card in flow (same asMermaid). Wheel zoom is world only.
Show full SKILL.md (391 more words)Show less
Hard boundaries
- Look at
.pier/canvases/canvas-kit/canvas-kit.canvas.tsxandsdk/*.d.ts. Only import named exports frompier/canvas. Commands frompier/host. Plugin data:plugin.list/inspect→useHostSnapshot("plugin:<id>/<key>")→ declaredpluginAction.invoke. CRUD/OAuth viasettings.open. See host-data.md. Never shipAccountsCard/canvasWidgets. - Write under
.pier/canvases/**unless the user asks otherwise. - Never
cursor/canvas,window.pier, Electron, Node, IPC,eval, dynamic import, or host component source. - Do not register extra system skills per pack.
Workflow A — methodology
Use when you inferred an overview or mode=methodology. Not for a UI mockup.
- Resolve packs (project then built-in). Hard fail if missing.
kind: "composition"unless the user needsdocsorkit.- Write
.pier/canvases/<slug>/{instance.json,data.json,<slug>.canvas.tsx}. - Content pack →
data.jsonfromrequired/gates/agentPrompt. No layout. - Run gates; stop on failure.
- Presentation pack →
views/antiPatterns/template. BLUF first; oneprimary; ≤5 tabs. static product design (methodology Expression selection). No Play/Step unless a mechanism explainer. - UI pack
rules/forbidden(defaultpier-default). instance.json:content,presentation,ui,status: "draft",role: "overview".- Read
sdk/index.d.ts. Run verification.md.
Restyle: keep data.json, change packs, regenerate the Canvas.
Workflow B — freeform
Use when mode=freeform, recipe= is set, or you inferred a freeform shell.
- Update in place when a matching Canvas exists.
- Read relevant project code and
sdk/index.d.ts. - Kind:
composition|docs|kit. File:.pier/canvases/<slug>/<slug>.canvas.tsx. - Start from the Auto-resolve template (or canvas-kit for
kit). PackagentPrompt+ authoring.md own details. Do not copy applet source. Do not import@pier-applet/pier.tasks/tracker-board. - Export
canvasmetadata. No methodologyinstance.json. - Run verification.md.
Content requirements
- User-visible copy in the user's language.
- Hierarchy before decoration. No fabricated data or empty decorative cards.
- Charts: metrics, units, time ranges, sources.
- Mermaid chrome: flowchart / architecture use
nodes/edgeswithkind(actor|agent|tool|artifact|external). Status usestone. Sequence (sequence/sequenceDiagram), state,class, ER, mindmap use native mermaidsource. Card wash matchesWorkflowDiagram(color-mixof status-fg into--card, theme ink). No left color rail. Mermaid is static. Details: authoring.md Mermaid. - Approval / recover:
WorkflowDiagram, not Mermaid. Details: authoring.md Workflow diagrams. - Multi-screen user path:
recipe=design+ScreenFlowonWorldStage. Details: authoring.md Screen flows. CallvalidateScreenFlowPaint({ spec, frames })after placing Layers; if it fails, apply only the firstsupportedFixesentry and re-run. Do not useWorkflowDiagramfor artboards. - Every user action needs a recognizable UI change or error.
Delivery
- Project-relative path; created vs updated;
kind. - Methodology:
content,presentation,uiused. - Compilation, mount, interaction checks actually completed — and any that were not.
© runloom, AGPL-3.0. 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 39 other files (references) in resources/system-skills/pier-canvas of runloom/pier.
- SKILL.md
- i18n/nav.json
- packs/content/closed-loop/pack.json
- packs/content/design-doc/pack.json
- packs/presentation/decision_nav_4/pack.json
- packs/presentation/one_pager/pack.json
- packs/presentation/primary_nav_5/pack.json
- packs/recipes/design/pack.json
- packs/recipes/task-dag/pack.json
- … and 31 more
Open the folder on GitHubat commit 32403c0
Compare with similar skills
Pier Canvas 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 |
|---|---|---|---|---|---|---|
| Pier Canvas this skillrunloom/pier | 105 | — | ~2.4k | Automated safety check: Pass | AGPL-3.0 | |
| Canvasopenclaw/openclaw | 392k | — | ~263 | Automated safety check: Pass | MIT | |
| Canva Designerasgeirtj/system_prompts_leaks | 69k | — | ~2.1k | Automated safety check: Pass | CC0-1.0 | |
| Plan Canvasaffaan-m/ECC | 276k | 1 repos | ~2.2k | Automated safety check: Pass | MIT | |
| Canvas Designanthropics/skills | 180k | 52 repos | ~3k | Automated safety check: Pass | Apache-2.0 | |
| Composing Grid CanvasesPostHog/posthog | 40k | — | ~2.1k | Automated safety check: Pass | Custom licence |
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Questions about Pier Canvas
What does Pier Canvas do?
Create or update a Pier Canvas under .pier/canvases using pier/canvas, pier/host, and project components. Pier Canvas is an agent skill from runloom/pier.pier/canvases using pier/canvas, pier/host, and project components.
How do I install Pier Canvas in Claude Code?
Run `npx skills add runloom/pier --skill pier-canvas -a claude-code`. Or copy the skill folder (resources/system-skills/pier-canvas in runloom/pier) into .claude/skills/pier-canvas in your project. Claude Code loads it when a task matches its description.
How do I install Pier Canvas in Codex?
Run `npx skills add runloom/pier --skill pier-canvas -a codex`. Or copy the skill folder (resources/system-skills/pier-canvas in runloom/pier) into .agents/skills/pier-canvas in your project. Codex loads it when a task matches its description.
Can I use Pier Canvas 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 runloom/pier --skill pier-canvas -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/pier-canvas, .gemini/skills/pier-canvas, .github/skills/pier-canvas and .opencode/skills/pier-canvas in your project.
What does Pier Canvas need to run?
SKILL.md names no scripts, command-line tools or credentials: Pier Canvas is instructions for the agent only. Compatibility (from SKILL.md): Requires Pier with the pier/canvas React runtime..
Does Pier Canvas 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 Pier Canvas 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 Pier Canvas use?
Pier Canvas is published under the AGPL-3.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Pier Canvas use?
About 2.4k tokens (SKILL.md is roughly 9.8k 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 7.3k tokens, read only when the agent opens those files.
What are the alternatives to Pier Canvas?
Skills that share tags, products or a category with Pier Canvas: Canvas (openclaw/openclaw, 392k stars), Canva Designer (asgeirtj/system_prompts_leaks, 69k stars), Plan Canvas (affaan-m/ECC, 276k stars) and Canvas Design (anthropics/skills, 180k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Pier Canvas?
runloom (a GitHub organization) maintains it in runloom/pier, which has 105 GitHub stars. The repository holds 4 skills in this directory. The repository was last updated on October 2, 2026.
Source: runloom/pier on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.