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 canva-sdks/canva-skills --skill edit-designgit clone --depth 1 https://github.com/canva-sdks/canva-skillsWrote 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/canva-sdks/canva-skills/edit-design)<a href="https://agentmods.dev/skills/canva-sdks/canva-skills/edit-design"><img src="https://agentmods.dev/badge/skills/canva-sdks/canva-skills/edit-design.svg" alt="Measured on agentmods" 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 | $0.00103 | $0.01301 |
| Opus 5 | $0.00051 | $0.00651 |
| Sonnet 5 | $0.00021 | $0.00260 |
| Haiku 4.5 | $0.00010 | $0.00130 |
Grade A, and why
canva-edit-design 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 8d 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 — 77 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Canva Design Editing
The canonical, safe way to apply edits to an existing Canva design. Every Canva skill that mutates a design should follow this exact protocol: start a transaction → perform operations → commit (with approval). Changes are draft-only until committed and are PERMANENTLY LOST if not committed.
The Transaction Protocol (always these steps, in order)
Canva:start-editing-transaction— pass thedesign_id. Remember the returnedtransaction_idand thepagesarray; both are required by later calls. ALWAYS show the user the thumbnail(s) returned here.Canva:perform-editing-operations— apply edits. Pass thetransaction_id, thepagesarray from the previous response, thepage_indexof the first page being changed, and anoperationsarray. Batch multiple operations into a single call wherever possible.Canva:commit-editing-transaction— save. See the approval gate below. After committing, thetransaction_idis invalid; a new edit needs a new transaction.Canva:cancel-editing-transaction— discard the draft instead of saving (e.g. the user rejects the preview, or you opened a transaction only to inspect the design).
Capabilities — what the API CAN and CANNOT do
CAN (operations on perform-editing-operations)
- Text content:
replace_text(whole element),find_and_replace_text(substring) - Text formatting (
format_text): font size, weight (normal/bold), style (normal/italic), color, alignment, line height, underline, strikethrough, links, list level/marker - Media:
update_fill(replace image/video),insert_fill(add image/video),delete_element - Layout:
position_element,resize_element - Metadata:
update_title - Autofill mapping:
update_autofill_field(fixed-page designs only)
CANNOT
- Change font family/typeface (only size, weight, style)
- Add new text elements (you can only insert media, not new text boxes)
- Change background colors or gradients
- Add, remove, or reorder pages/slides
- Modify animations, transitions, or element opacity (except on newly inserted fills)
- Group/ungroup elements, or restyle shapes (only text inside shapes is editable)
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.
- 8d ago First seen · 77 lines · 103 tokens per session scan A 842eeec8f89b
canva-edit-design is a skill published in the GitHub repository canva-sdks/canva-skills (91 stars, last pushed 2mo ago), licensed Apache-2.0. It adds 103 tokens to every session and 1,301 once invoked, about $0.0005 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.
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