Agent skill

Canvas

by kansoku-trade in kansoku-trade/kansoku

A canvas is a live React panel the user opens beside the chat, saved as journal/canvases/<slug.canvas.tsx.

Custom licenceAuto-check passedBusiness, Finance & HR

Install Canvas

skills CLI
$ npx skills add kansoku-trade/kansoku --skill canvas -a claude-code

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

GitHub CLI
$ gh skill install kansoku-trade/kansoku canvas --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/kansoku-trade/kansoku.git skills-src && mkdir -p .claude/skills && cp -r skills-src/packages/core/skills/canvas .claude/skills/canvas && 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
canvas
GitHub stars
328
Token cost
~3.3k tokens
SKILL.md length
1,689 words
Files
11
Skills in repo
13
Repo updated
First seen
Licence
Custom licence

At a glance

A canvas is a live React panel the user opens beside the chat, saved as journal/canvases/<slug.canvas.tsx.

  • Works in 4 steps: Decide whether to use a canvas → Fetch first, then embed → Write the canvas → …
  • Tasks that involve React components
  • SKILL.md covers Workflow, Design guidance, Skeleton and Handing it over, plus 1 more section
  • Runs TypeScript scripts from its folder

What it does

Canvas is an agent skill from kansoku-trade/kansoku. A canvas is a live React panel the user opens beside the chat, saved as journal/canvases/<slug.canvas.tsx. You MUST use a canvas whenever you produce a standalone analytical artifact — multi-symbol comparisons, capital-flow or price reads across several names, event before/after studies, scenario-and-plan write-ups, session or weekly post-mortems, multi-period chart layouts, coverage-and-gap reports, or any answer that is carried by numbers laid out visually. If you catch yourself about to write a markdown table…

Its SKILL.md is about 3.3k tokens, which your agent loads only when the skill is triggered. The skill folder holds 11 other files (for example `sdk/CandleChart.d.ts`, `sdk/analysis.d.ts` and `sdk/charts.d.ts`).

It sits in Business, Finance & HR, covering React components, Stock and market analysis and Runbooks and postmortems. It works with React and Longbridge. The repository describes itself as: AI Stock Partner on Your Mac – Local Market Information, Multi-timeframe K-line, AI Intraday Comments and Follow-up Analysis.

When your agent uses it

  • Tasks that involve React components
  • Tasks that involve Stock and market analysis
  • Tasks that involve Runbooks and postmortems

Example prompts

  • “/canvas”

Requirements

  • Node.js

Workflow steps

4 steps, taken from the step headings in SKILL.md.

  1. Decide whether to use a canvas
  2. Fetch first, then embed
  3. Write the canvas
  4. Where data comes from

What it can do on your machine

Read from SKILL.md and the folder at commit 8fa9a03. 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

    Ships script files (TypeScript), which the agent can run.

    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

Canvas loads about 3.3k tokens when it runs. Until then it costs about 251 tokens; SKILL.md has 1,689 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~251
When it runs · the whole SKILL.md, loaded when a task matches
~3.3k

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 1,689 words (~3,317 tokens).

“A canvas is one .canvas.tsx file the app compiles so the user can open it beside the chat.”

— opening of SKILL.md by kansoku-trade, Custom licence
name
canvas

Read the full SKILL.md on GitHub

Files

SKILL.md and 10 other files in packages/core/skills/canvas of kansoku-trade/kansoku.

  • SKILL.md
  • sdk/CandleChart.d.ts
  • sdk/analysis.d.ts
  • sdk/charts.d.ts
  • sdk/control.d.ts
  • sdk/core.d.ts
  • sdk/index.d.ts
  • sdk/live.d.ts
  • sdk/names.d.ts
  • sdk/shared.d.ts
  • sdk/theme.d.ts

Open the folder on GitHubat commit 8fa9a03

Compare with similar skills

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.

Canvas compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Canvas this skillkansoku-trade/kansoku328—~3.3kAutomated safety check: PassCustom licence
Longbridge Market Datasickn33/agentic-awesome-skills47k1 repos~1.7kAutomated safety check: PassMIT
Longbridge Researchhelsome/folio2713 repos~2.1kAutomated safety check: PassMIT
Longbridge Earningshelsome/folio2711 repos~2.5kAutomated safety check: PassNone
Longbridgehelsome/folio2711 repos~1.9kAutomated safety check: PassNone
Longbridge Contenthelsome/folio2711 repos~883Automated safety check: PassMIT

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  • Longbridge Research

    helsome/folio

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Works with

Questions about Canvas

What does Canvas do?

A canvas is a live React panel the user opens beside the chat, saved as journal/canvases/<slug.canvas.tsx. Canvas is an agent skill from kansoku-trade/kansoku.tsx.

When should I use Canvas?

Canvas fits situations like: tasks that involve React components; tasks that involve Stock and market analysis; tasks that involve Runbooks and postmortems.

How do I install Canvas in Claude Code?

Run `npx skills add kansoku-trade/kansoku --skill canvas -a claude-code`. Or copy the skill folder (packages/core/skills/canvas in kansoku-trade/kansoku) into .claude/skills/canvas in your project. Claude Code loads it when a task matches its description.

How do I install Canvas in Codex?

Run `npx skills add kansoku-trade/kansoku --skill canvas -a codex`. Or copy the skill folder (packages/core/skills/canvas in kansoku-trade/kansoku) into .agents/skills/canvas in your project. Codex loads it when a task matches its description.

Can I use 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 kansoku-trade/kansoku --skill 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/canvas, .gemini/skills/canvas, .github/skills/canvas and .opencode/skills/canvas in your project.

What does Canvas need to run?

Going by SKILL.md and its folder, Canvas needs TypeScript for the scripts in its folder. Our summary lists: Node.js.

Does 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 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 Canvas use?

Canvas 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 Canvas use?

About 3.3k tokens (SKILL.md is roughly 13k 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 Canvas?

Skills that share tags, products or a category with Canvas: Longbridge Market Data (sickn33/agentic-awesome-skills, 47k stars), Longbridge Research (helsome/folio, 271 stars), Longbridge Earnings (helsome/folio, 271 stars) and Longbridge (helsome/folio, 271 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Canvas?

kansoku-trade (a GitHub organization) maintains it in kansoku-trade/kansoku, which has 328 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on September 26, 2026.

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