Security Threat Modeling
devcodex-labs/devcodex
安全威胁建模专家 Owner — 当任务涉及权限、认证、授权、输入输出信任边界、密钥策略、审计、攻击面、Webhook/OAuth、敏感操作或用户要求安全专家视角时使用；要求识别滥用路径并绑定缓解验证。
Implement the Canva Connect security baseline for backend OAuth, least privilege, tenant isolation, logging, revocation, and preview webhook verification.
Install Canva Security Basics
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace canva-security-basics --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/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/.curated/canva-security-basics .claude/skills/canva-security-basics && 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 "canva-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/canva-security-basics into .claude/skills/canva-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canva-security-basics", 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/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/canva-security-basicsType 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 jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace canva-security-basics --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/.curated/canva-security-basics .agents/skills/canva-security-basics && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "canva-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/canva-security-basics into .agents/skills/canva-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canva-security-basics", 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 jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace canva-security-basics --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/.curated/canva-security-basics .cursor/skills/canva-security-basics && 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 "canva-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/canva-security-basics into .cursor/skills/canva-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canva-security-basics", 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/jeremylongshore/tons-of-skills-marketplace.git --path skills/.curated/canva-security-basics--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 jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace canva-security-basics --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/.curated/canva-security-basics .gemini/skills/canva-security-basics && 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 "canva-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/canva-security-basics into .gemini/skills/canva-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canva-security-basics", 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 jeremylongshore/tons-of-skills-marketplace canva-security-basicsInstalls 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 jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/.curated/canva-security-basics .github/skills/canva-security-basics && 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 "canva-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/canva-security-basics into .github/skills/canva-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canva-security-basics", 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 jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace canva-security-basics --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplace.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/.curated/canva-security-basics .opencode/skills/canva-security-basics && 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 "canva-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/canva-security-basics into .opencode/skills/canva-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "canva-security-basics", 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
canva-security-basics- GitHub stars
- 2.8k
- Token cost
- ~1.1k tokens
- SKILL.md length
- 433 words
- Files
- 2 (incl. references)
- Skills in repo
- 3,342
- Repo updated
- First seen
- Licence
- MIT
At a glance
Implement the Canva Connect security baseline for backend OAuth, least privilege, tenant isolation, logging, revocation, and preview webhook verification.
- Works in 7 steps: Inventory secrets and flows → Harden OAuth → Minimize authorization → …
- Threat-modeling
- SKILL.md covers Overview, Prerequisites, Instructions and Authentication, plus 5 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Canva Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Implement the Canva Connect security baseline for backend OAuth, least privilege, tenant isolation, logging, revocation, and preview webhook verification. Use when threat-modeling, reviewing, or hardening an integration. Trigger with: "secure Canva integration", "Canva token security", "verify Canva webhook".
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/official-docs.md`). Compatibility notes: Requires a backend web application, approved secret store, threat owner, and current Canva security documentation.
It sits in Backend & APIs, covering Webhooks, OAuth and OpenID Connect and Multi-tenancy. It works with Canva. The repository describes itself as: Model-agnostic agent-skills platform with a harness-free canonical layer, verified adapters, and the ccpi package manager. Explore at tonsofskills.com. The licence is MIT.
When your agent uses it
- Threat-modeling
- Hardening an integration
- With: secure Canva integration
- Canva token security
Example prompts
- “secure Canva integration”
- “Canva token security”
- “verify Canva webhook”
- “/canva-security-basics”
Requirements
- Compatibility (from SKILL.md): Requires a backend web application, approved secret store, threat owner, and current Canva security documentation.
- Pre-approved tools (allowed-tools): Read, Grep, Write, Edit
Workflow steps
7 steps, taken from the step headings in SKILL.md.
What it can do on your machine
Read from SKILL.md and the folder at commit cfae287. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves these tools, so the agent can use them without asking each time:
ReadGrepWriteEdit
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
Links to these hosts (documentation or services it may open):
canva.dev
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 a backend web application, approved secret store, threat owner, and current Canva security documentation.
From compatibility in the SKILL.md frontmatter.
Context cost
Canva Security Basics loads about 1.1k tokens when it runs, and up to ~1.2k if it reads all its reference files. Until then it costs about 83 tokens; SKILL.md has 433 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 jeremylongshore/tons-of-skills-marketplace at commit cfae287, republished under its MIT licence (© jeremylongshore). 433 words, ~1,067 tokens.
Download SKILL.mdSave it as
.claude/skills/canva-security-basics/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- canva-security-basics
- description
- Implement the Canva Connect security baseline for backend OAuth, least privilege, tenant isolation, logging, revocation, and preview webhook verification. Use when threat-modeling, reviewing, or hardening an integration. Trigger with: "secure Canva integration", "Canva token security", "verify Canva webhook".
- allowed-tools
- Read, Grep, Write, Edit
- compatibility
- Requires a backend web application, approved secret store, threat owner, and current Canva security documentation.
- version
- 2.0.0
- argument-hint
- [integration-id-and-threat-scope]
- model
- inherit
- effort
- high
- license
- MIT
- author
- Jeremy Longshore <jeremy@intentsolutions.io>
- tags
- saas, canva, security, operations
Canva Integration Security Baseline
Overview
Protect client secrets and user tokens as separate high-impact credentials. Enforce authorization before provider access and treat preview webhook verification as an additional boundary, not proof of business authorization.
Prerequisites
- Integration ID, environments, operations, tenants, and threat scope
- Current scopes, redirect URIs, token stores, and data flows
- Webhook/preview use, incident response, secret scanning, and audit controls
Instructions
Step 1: Inventory secrets and flows
Use Read and Grep to locate client secrets, access/refresh tokens, PKCE verifier, OAuth state, callbacks, browser bundles, logs, backups, jobs, and external processors.
Step 2: Harden OAuth
Require controlled redirect hosts, one-time state/verifier, backend token exchange, encrypted and separated tokens, per-user refresh serialization, revocation, and disconnect cleanup.
Step 3: Minimize authorization
Request explicit minimum scopes and enforce tenant, resource, role, capability, purpose, and preview status server-side before every action.
Step 4: Harden data and logs
Use Write or Edit to prevent tokens, bodies, signed URLs, personal data, and resource identifiers from routine logs; protect stored content and deletion workflows.
Step 5: Verify webhooks
For authorized preview use, validate the signed token/claims against cached Canva JWKs, select by case-sensitive key ID, refetch only for unknown keys, enforce replay/idempotency controls, and authorize resulting actions separately.
Step 6: Harden dependencies and deployment
Pin provider/client inputs, scan secrets, isolate environments, protect CI from forks, deploy immutably, and maintain tested rollback and credential rotation.
Step 7: Prove controls
Test state mismatch, token leak prevention, cross-tenant denial, refresh races, scope denial, unknown webhook key, replay, revoked consent, and account deletion.
Show full SKILL.md (181 more words)Show less
Authentication
Canva Connect calls use Bearer access tokens obtained by a backend through OAuth 2.0 Authorization Code with SHA-256 PKCE. Request explicit least-privilege scopes, keep client secrets and tokens out of browser-visible state, and serialize refresh so the replacement single-use refresh token is stored atomically.
Tool Discipline
Use Read and Grep for discovery and evidence. Use Write or Edit only for the approved artifact, code, configuration, test, or receipt described by this workflow; do not make an unapproved Canva-side change.
Output
- Scoped decision or implementation artifact
- Redacted operation and validation receipt
- Failure, rollback, and follow-up ownership record
Examples
A valid Canva webhook signature is accepted only as authenticity evidence. The router still checks preview authorization, tenant/resource policy, idempotency, and allowed action before processing.
Error Handling
| Failure | Response |
|---|---|
| Secret reaches public repository | Assume compromise, rotate, and investigate |
| Cross-tenant access succeeds | Disable the path and treat as a security incident |
| Webhook key is unknown | Refetch the public JWK set once and fail closed if still unknown |
| Consent is revoked | Delete tokens and deny queued work |
Resources
© jeremylongshore, MIT. 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 1 other file (references) in skills/.curated/canva-security-basics of jeremylongshore/tons-of-skills-marketplace.
- SKILL.md
- references/official-docs.md
Open the folder on GitHubat commit cfae287
Compare with similar skills
Canva Security Basics 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 |
|---|---|---|---|---|---|---|
| Canva Security Basics this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1.1k | Automated safety check: Pass | MIT | |
| Security Threat Modelingdevcodex-labs/devcodex | 439 | — | ~771 | Automated safety check: Pass | AGPL-3.0 | |
| PR Review Provideryansongda/pay | 5.4k | — | ~2.4k | Automated safety check: Pass | MIT | |
| Stripe Best Practiceskanchengw/cnllm | 173 | 2 repos | ~925 | Automated safety check: Pass | Apache-2.0 | |
| Discord Php Bot Securitydiscord-php/DiscordPHP | 1.1k | — | ~1.2k | Automated safety check: Notes | MIT | |
| GitHub OAuth Nango IntegrationAgentWorkforce/relay | 872 | 1 repos | ~3.4k | Automated safety check: Pass | Apache-2.0 |
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Related
Works with
Categories
Questions about Canva Security Basics
What does Canva Security Basics do?
Implement the Canva Connect security baseline for backend OAuth, least privilege, tenant isolation, logging, revocation, and preview webhook verification. Canva Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Implement the Canva Connect security baseline for backend OAuth, least privilege, tenant isolation, logging, revocation, and preview webhook verification.
When should I use Canva Security Basics?
Canva Security Basics fits situations like: threat-modeling; hardening an integration; with: secure Canva integration; canva token security.
How do I install Canva Security Basics in Claude Code?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a claude-code`. Or copy the skill folder (skills/.curated/canva-security-basics in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/canva-security-basics in your project. Claude Code loads it when a task matches its description.
How do I install Canva Security Basics in Codex?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a codex`. Or copy the skill folder (skills/.curated/canva-security-basics in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/canva-security-basics in your project. Codex loads it when a task matches its description.
Can I use Canva Security Basics 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 jeremylongshore/tons-of-skills-marketplace --skill canva-security-basics -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/canva-security-basics, .gemini/skills/canva-security-basics, .github/skills/canva-security-basics and .opencode/skills/canva-security-basics in your project.
What does Canva Security Basics need to run?
SKILL.md names no scripts, command-line tools or credentials: Canva Security Basics is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Write, Edit. Compatibility (from SKILL.md): Requires a backend web application, approved secret store, threat owner, and current Canva security documentation..
Does Canva Security Basics access the network?
SKILL.md names 1 domain. As links in the text: canva.dev. This is read from the text; nothing was executed.
Is Canva Security Basics 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 Canva Security Basics use?
Canva Security Basics is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Canva Security Basics use?
About 1.1k tokens (SKILL.md is roughly 4.3k 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 134 tokens, read only when the agent opens those files.
What are the alternatives to Canva Security Basics?
Skills that share tags, products or a category with Canva Security Basics: Security Threat Modeling (devcodex-labs/devcodex, 439 stars), PR Review Provider (yansongda/pay, 5.4k stars), Stripe Best Practices (kanchengw/cnllm, 173 stars) and Discord Php Bot Security (discord-php/DiscordPHP, 1.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Canva Security Basics?
jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,827 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 10, 2026.
Source: jeremylongshore/tons-of-skills-marketplace on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.