working-with-obsidian-canvas

working-with-obsidian-canvas is a skill for Claude Code, Codex from regen-coordination/org-os-template. It costs 87 tokens per session (3,284 once invoked), scanned A, original, MIT.

A set of instructions for reading, creating, editing, validating, and merging Obsidian Canvas files. Obsidian Canvas files are spatial documents where the position of notes and connections conveys meaning.

In plain words
What is it for?
It helps validate canvas files, compare versions, add nodes, and decide whether a merge is safe or needs manual review.
Why use it?
A canvas can remain valid JSON while losing its meaning if its layout or connections are damaged. These instructions help detect broken references, collisions, and unsafe merges.

Skill for Claude CodeCodex

Which agent this was written for is unclear — built for openclaw. Also seen: built for openclaw.

Good fit It helps validate canvas files, compare versions, add nodes, and decide whether a merge is safe or needs manual review.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/regen-coordination/org-os-template/working-with-obsidian-canvas
Install

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.

Any agent
npx skills add regen-coordination/org-os-template --skill working-with-obsidian-canvas
Clone the repo
git clone --depth 1 https://github.com/regen-coordination/org-os-template

Made for: Claude Code, Codex.

Wrote 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.

agentmods badge for working-with-obsidian-canvas

README.md
[![agentmods](https://agentmods.dev/badge/skills/regen-coordination/org-os-template/working-with-obsidian-canvas/github.svg)](https://agentmods.dev/skills/regen-coordination/org-os-template/working-with-obsidian-canvas)
Your own site
<a href="https://agentmods.dev/skills/regen-coordination/org-os-template/working-with-obsidian-canvas"><img src="https://agentmods.dev/badge/skills/regen-coordination/org-os-template/working-with-obsidian-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.

agentmods 80×15 button for working-with-obsidian-canvas

Your own site · 80×15
<a href="https://agentmods.dev/skills/regen-coordination/org-os-template/working-with-obsidian-canvas"><img src="https://agentmods.dev/badge/skills/regen-coordination/org-os-template/working-with-obsidian-canvas.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 87 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,284 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Rogue Agent · line 251
    Skill modifies its own code, configuration, or behavior at runtime. Self-modification enables an agent to escalate privileges, disable safety constraints, or install persistent backdoors.
    Fix: Prevent the skill from modifying its own code, SKILL.md, or configuration files. Treat skill files as read-only at runtime.
  • medium analysis-evasion · line 1
    Suspicious Unicode normalization or mixed-script content
    Fix: Review the flagged content for security risks. Ensure no credentials, secrets, or sensitive data are exposed.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00087 $0.03284
Opus 5 $0.00044 $0.01642
Sonnet 5 $0.00017 $0.00657
Haiku 4.5 $0.00009 $0.00328

Measured 9d ago against content hash 2c0d88cf3345, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

working-with-obsidian-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.

The scan reads SKILL.md. This mod also ships 2 executable files (scripts/diff-canvas.mjs, scripts/validate-canvas.mjs), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

skills/working-with-obsidian-canvas/SKILL.md · 252 lines

How it starts

The opening of the file, as written. The whole thing — 252 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Working with Obsidian Canvas (v0.1)

What This Is

A canvas is a spatial design document, not a data dump. Layout encodes intent: which nodes sit together, what zones contain what, how arrows flow. A merge that preserves all the JSON but flattens the spatial reorganization has destroyed the document.

This skill teaches Claude to:

  1. Classify the intent of a canvas-touching task before acting.
  2. Refuse to hand-edit canvases that are owned by a generator script.
  3. Validate every canvas before writing it back to disk.
  4. Stop and escalate on structural divergence in merges — the load-bearing rule.

The skill ships two scripts. Use them; don't reimplement their logic in your head:

  • scripts/validate-canvas.mjs <path> — integrity checks (dangling edges, missing file refs, ID collisions, bounds, palette). Exits non-zero on errors.
  • scripts/diff-canvas.mjs <ours> <theirs> — emits a JSON classifier report (additive / disjoint-edit / positional-edit / structural / conflicting-spatial / no-change) plus the recommended action.

When to Use

  • Operator asks to read, summarize, generate, edit, or merge a .canvas file.
  • A git merge or rebase touches a .canvas file.
  • The operator pastes a canvas path and asks for "preview" / "audit" / "clean up".
  • Operator asks to "add a node" / "add this to the canvas" / "wire these together".
  • A canvas has dangling file refs or broken links.

When NOT to Use

  • The target is a non-canvas Obsidian file (.md, .base) — different file format, different skill.
  • The operator is editing a canvas in the Obsidian app and asks an unrelated question.
  • The task is canvas → HTML/PDF export (deferred — separate exporting-obsidian-canvas skill once it exists).
  • Auto-layout via dagre / force-directed graph — out of scope for v0.1.

Phase A — Classify intent

First question on every canvas-touching task. Pick exactly one:

Intent Signal Path
Read-only "summarize", "what's in this canvas", "list", "audit" B → end
Additive edit "add a node", "wire X to Y", "append this section" B → C → D → E
Structural edit "reorganize", "rename zones", "move", "restructure layout" B → C → confirm → D → E
Generative "make a canvas for", "build a map of" (no existing canvas) C → D → E
Merge git merge/rebase, "merge <branch> into main", "reconcile" B → F

Read the full file on GitHub · 252 lines

Files

What ships with it

5 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.

Changes

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.

  1. 9d ago First seen · 252 lines · 87 tokens per session scan A 2c0d88cf3345

Subscribe to this mod's changes

working-with-obsidian-canvas is a skill published in the GitHub repository regen-coordination/org-os-template (5 stars, last pushed 6d ago), licensed MIT. It adds 87 tokens to every session and 3,284 once invoked, about $0.0004 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 2026-09-03.

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