Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add AgriciDaniel/claude-canvas --skill canvasgit clone --depth 1 https://github.com/AgriciDaniel/claude-canvasWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/agricidaniel/claude-canvas/canvas)<a href="https://agentmods.dev/skills/agricidaniel/claude-canvas/canvas"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-canvas/canvas/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/agricidaniel/claude-canvas/canvas"><img src="https://agentmods.dev/badge/skills/agricidaniel/claude-canvas/canvas.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00153 | $0.02482 |
| Opus 5 | $0.00077 | $0.01241 |
| Sonnet 5 | $0.00031 | $0.00496 |
| Haiku 4.5 | $0.00015 | $0.00248 |
Grade A, and why
canvas scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 240 lines — stays where its author put it; the contents beside it link to each section on GitHub.
canvas: AI-Orchestrated Visual Production
Claude acts as Creative Director for Obsidian Canvas. Describe what you want and get a fully populated, professionally laid-out .canvas file.
Context Detection
Before any operation, determine the canvas directory:
- If
wiki/canvases/exists in the current directory or a parent: use it (claude-obsidian vault mode).- Media goes to
_attachments/images/canvas/
- Media goes to
- Otherwise: use
.canvases/in the current working directory (standalone mode).- Media goes to
.canvases/assets/
- Media goes to
- Create the directory if it doesn't exist.
Default canvas: [canvas_dir]/main.canvas
Command Routing
| Command | Sub-skill | Description |
|---|---|---|
/canvas (no args) |
(inline) | Status: list canvases, node counts, zones |
/canvas create [name] |
canvas-create | Create blank or templated canvas |
/canvas create [name] from [template] |
canvas-create | Create from archetype |
/canvas add [type] [content] |
canvas-populate | Add node (image/text/pdf/note/link/mermaid/svg/gif/banana) |
/canvas zone [name] [color] |
canvas-populate | Add group node |
/canvas connect [from] [to] [label] |
canvas-populate | Add edge between nodes |
/canvas from banana |
canvas-populate | Import recent AI-generated images |
/canvas layout [algorithm] |
canvas-layout | Re-layout (auto/grid/dagre/radial/force/linear) |
/canvas present [topic] |
canvas-present | Build presentation canvas (1200x675 slides) |
/canvas present from [notes] |
canvas-present | Presentation from existing content |
/canvas generate [description] |
canvas-generate | AI-orchestrated full canvas generation |
/canvas template list |
canvas-template | Browse 12 archetypes |
/canvas template use [name] |
canvas-template | Instantiate a template |
/canvas export [format] [path] |
canvas-export | Export to PNG/SVG/PDF |
/canvas list |
(inline) | List all canvases with stats |
What ships with it
7 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 9d ago First seen · 240 lines · 153 tokens per session scan A 7b3a7824b771
canvas is a skill published in the GitHub repository AgriciDaniel/claude-canvas (291 stars, last pushed 5mo ago), licensed MIT. It adds 153 tokens to every session and 2,482 once invoked, about $0.0008 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
Other skills, from other repositories
canvas
Create, inspect, and update Obsidian JSON Canvas boards with text, file, link, group, and edge nodes. Use for canvas status, canvas lists, visual maps, zones, spatial layouts, adding vault notes or media to a .canvas file, and requests such as create canvas, add to canvas, or put this on the canvas.
wiki-ingest
Ingest supplied source material into an Obsidian vault with provenance and claim tracking: pasted text, files staged in the selected vault's inbox or .raw archive, or explicitly approved URLs. Use for a single source or bounded batch, not for saving an assistant answer. Triggers: ingest, ingest this file, ingest this…
autoresearch
Run a bounded, source-grounded research loop, draft a cited dossier, and optionally propose a separately reviewed canonical vault merge. Use when the user wants autonomous or deep research that may access the public web. Triggers: /autoresearch, autoresearch, research this topic, deep dive into, investigate, find…
wiki-retrieve
Build and query a vault-local contextual BM25 retrieval index with optional multilingual Nomic cosine reranking; use for retrieve, hybrid retrieval, BM25, rerank, contextual retrieval, chunk search, vault search, semantic search, find relevant passages, or retrieval diagnostics. Derived caches stay under .vault-meta…
defuddle
Plan and, with explicit network consent, use an optional external Defuddle cleaner to extract article-like HTTPS pages as Markdown. Use for defuddle, clean this URL, strip page clutter, readable Markdown from a web page, or preparing a web source for later wiki ingestion.
obsidian-bases
Explain, draft, and validate Obsidian Bases .base files with filters, formulas, properties, summaries, and table, card, or list views. Use for Obsidian Bases, database-like vault views, dynamic tables, reading lists, task trackers, filters, formulas, summaries, and .base file edits.