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Agent skill
Lucidchart Security Basics
by jeremylongshore in jeremylongshore/tons-of-skills-marketplace
Threat-model and harden Lucid API, Standard Import, editor extension, and data connector integrations.
Install Lucidchart Security Basics
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill lucidchart-security-basics -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace lucidchart-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/lucidchart-security-basics .claude/skills/lucidchart-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 "lucidchart-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/lucidchart-security-basics into .claude/skills/lucidchart-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lucidchart-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/lucidchart-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 lucidchart-security-basics -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace lucidchart-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/lucidchart-security-basics .agents/skills/lucidchart-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 "lucidchart-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/lucidchart-security-basics into .agents/skills/lucidchart-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lucidchart-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 lucidchart-security-basics -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace lucidchart-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/lucidchart-security-basics .cursor/skills/lucidchart-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 "lucidchart-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/lucidchart-security-basics into .cursor/skills/lucidchart-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lucidchart-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/lucidchart-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 lucidchart-security-basics -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jeremylongshore/tons-of-skills-marketplace lucidchart-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/lucidchart-security-basics .gemini/skills/lucidchart-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 "lucidchart-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/lucidchart-security-basics into .gemini/skills/lucidchart-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lucidchart-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 lucidchart-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 lucidchart-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/lucidchart-security-basics .github/skills/lucidchart-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 "lucidchart-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/lucidchart-security-basics into .github/skills/lucidchart-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lucidchart-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 lucidchart-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 lucidchart-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/lucidchart-security-basics .opencode/skills/lucidchart-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 "lucidchart-security-basics" agent skill from https://github.com/jeremylongshore/tons-of-skills-marketplace/tree/main/skills/.curated/lucidchart-security-basics into .opencode/skills/lucidchart-security-basics/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "lucidchart-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
lucidchart-security-basics- GitHub stars
- 2.8k
- Token cost
- ~1k tokens
- SKILL.md length
- 376 words
- Files
- 2 (incl. references)
- Skills in repo
- 3,342
- Repo updated
- First seen
- Licence
- MIT
At a glance
Threat-model and harden Lucid API, Standard Import, editor extension, and data connector integrations.
- Works in 8 steps: Pin the reviewed revision and enumerate… → Re-fetch authentication, scope, header,… → Search tracked files and build artifacts… → …
- Reviewing secrets
- SKILL.md covers Overview, Prerequisites, Tool Discipline and Current Contract, plus 8 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Lucidchart Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Threat-model and harden Lucid API, Standard Import, editor extension, and data connector integrations. Use when reviewing secrets, scopes, data flows, or release security. Trigger with "secure Lucid integration".
Its SKILL.md is about 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: Designed for Claude Code; credential, scope, data-retention, publication, and production-remediation decisions require security and resource-owner approval
It sits in Security, covering Threat modeling. 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
- Reviewing secrets
- Release security
- With secure Lucid integration
Example prompts
- “secure Lucid integration”
- “/lucidchart-security-basics”
Requirements
- Compatibility (from SKILL.md): Designed for Claude Code; credential, scope, data-retention, publication, and production-remediation decisions require security and resource-owner approval
- Pre-approved tools (allowed-tools): Read, Glob, Grep, WebFetch, Write, Edit
Workflow steps
8 steps, taken from the first numbered list in SKILL.md.
- Pin the reviewed revision and enumerate actors, components, data stores, network edges, documents, and source systems.
- Re-fetch authentication, scope, header, and surface-specific official docs.
- Search tracked files and build artifacts for credentials, unsafe environment files, overly broad scopes, sensitive fixtures, and…
- Threat-model credential theft, malicious imports, archive traversal/expansion, injected source data, cross-account access, connector…
- Validate inputs, archive paths/sizes/types, stable IDs, outputs, redirects, state, authorization, tenant boundaries, and redaction.
- Verify pinned dependencies, reproducible builds, artifact provenance, change review, secretless CI, and rollback.
- Rank findings by exploitability and impact; propose reversible fixes with owners and evidence.
- Present credential, scope, retention, or production changes for explicit approval and verify remediation independently.
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:
ReadGlobGrepWebFetchWriteEdit
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
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.
Compatibility
Designed for Claude Code; credential, scope, data-retention, publication, and production-remediation decisions require security and resource-owner approval
From compatibility in the SKILL.md frontmatter.
Context cost
Lucidchart Security Basics loads about 1k tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 60 tokens; SKILL.md has 376 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). 376 words, ~1,001 tokens.
Download SKILL.mdSave it as
.claude/skills/lucidchart-security-basics/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- lucidchart-security-basics
- description
- Threat-model and harden Lucid API, Standard Import, editor extension, and data connector integrations. Use when reviewing secrets, scopes, data flows, or release security. Trigger with "secure Lucid integration".
- allowed-tools
- Read, Glob, Grep, WebFetch, Write, Edit
- compatibility
- Designed for Claude Code; credential, scope, data-retention, publication, and production-remediation decisions require security and resource-owner approval
- argument-hint
- [project-path] [surface]
- version
- 1.8.0
- author
- Jeremy Longshore <jeremy@intentsolutions.io>
- license
- MIT
- tags
- saas, lucidchart, security, oauth, least-privilege
- model
- inherit
- effort
- high
Lucid Integration Security Baseline
Overview
Establish least privilege, safe data handling, trustworthy package boundaries, and auditable operations for the exact Lucid integration surface.
Prerequisites
- Architecture and data-flow inventory with classifications and owners
- Credential/principal and extension-scope inventory
- Repository, artifact, deployment, logging, retention, and incident evidence
Tool Discipline
Use Read, Glob, and Grep for bounded static inspection, WebFetch for current Lucid security contracts, and Write or Edit only for approved local remediation and redacted reports.
Current Contract
Lucid exposes multiple credential classes, operation-specific scopes/headers, Standard Import archives, editor-extension scopes, and optional connector runtimes. Each creates distinct trust boundaries; an extension bundle is not a safe place for confidential credentials.
Authentication
Map API keys and OAuth user/account tokens to an owner, exact scopes/resources, storage, expiration, rotation, revocation, and audit trail. Validate OAuth redirect URIs and state. Never log tokens, authorization codes, refresh tokens, cookies, or signed URLs.
Instructions
- Pin the reviewed revision and enumerate actors, components, data stores, network edges, documents, and source systems.
- Re-fetch authentication, scope, header, and surface-specific official docs.
- Search tracked files and build artifacts for credentials, unsafe environment files, overly broad scopes, sensitive fixtures, and unredacted logs.
- Threat-model credential theft, malicious imports, archive traversal/expansion, injected source data, cross-account access, connector compromise, replay, and supply-chain drift.
- Validate inputs, archive paths/sizes/types, stable IDs, outputs, redirects, state, authorization, tenant boundaries, and redaction.
- Verify pinned dependencies, reproducible builds, artifact provenance, change review, secretless CI, and rollback.
- Rank findings by exploitability and impact; propose reversible fixes with owners and evidence.
- Present credential, scope, retention, or production changes for explicit approval and verify remediation independently.
Show full SKILL.md (108 more words)Show less
Approval Boundaries
Do not inspect secret values, rotate/revoke credentials, alter scopes, delete data, change retention, or publish security-sensitive changes without authorization.
Output
Return surfaces, trust boundaries, principal/scope matrix, findings with evidence, severity, remediation, approvals, verification, and residual risk.
Error Handling
| Condition | Response |
|---|---|
| Active secret appears in tracked data | Stop exposure, avoid repeating it, and escalate rotation through the owner. |
| Scope requirement is unclear | Deny the capability until the exact documented scope is established. |
| Archive or source data is untrusted | Quarantine and validate offline before any upload or rendering. |
Example
surface=extension+connector; critical=0; high=1; bundle-secrets=0; least-scope=partial; production-mutations=0Resources
Next Steps
Remediate highest-risk findings, rotate through accountable owners, and rerun the same evidence-backed checks.
© 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/lucidchart-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
Lucidchart 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 |
|---|---|---|---|---|---|---|
| Lucidchart Security Basics this skilljeremylongshore/tons-of-skills-marketplace | 2.8k | — | ~1k | Automated safety check: Pass | MIT | |
| Vuln Scanhashgraph-online/awesome-codex-plugins | 1.3k | — | ~1.9k | Automated safety check: Pass | Apache-2.0 | |
| Security And Hardeningpenpot/penpot | 61k | 6 repos | ~4.7k | Automated safety check: Notes | MPL-2.0 | |
| Forensifyalexgreensh/repo-forensics | 190 | — | ~2.5k | Automated safety check: Notes | Custom licence | |
| Create Rulecartography-cncf/cartography | 4.1k | — | ~3k | Automated safety check: Pass | Apache-2.0 | |
| Security and Hardeningaddyosmani/agent-skills | 105k | 1 repos | ~4.4k | Automated safety check: Notes | MIT |
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Categories
Questions about Lucidchart Security Basics
What does Lucidchart Security Basics do?
Threat-model and harden Lucid API, Standard Import, editor extension, and data connector integrations. Lucidchart Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Threat-model and harden Lucid API, Standard Import, editor extension, and data connector integrations.
When should I use Lucidchart Security Basics?
Lucidchart Security Basics fits situations like: reviewing secrets; release security; with secure Lucid integration.
How do I install Lucidchart Security Basics in Claude Code?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill lucidchart-security-basics -a claude-code`. Or copy the skill folder (skills/.curated/lucidchart-security-basics in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/lucidchart-security-basics in your project. Claude Code loads it when a task matches its description.
How do I install Lucidchart Security Basics in Codex?
Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill lucidchart-security-basics -a codex`. Or copy the skill folder (skills/.curated/lucidchart-security-basics in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/lucidchart-security-basics in your project. Codex loads it when a task matches its description.
Can I use Lucidchart 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 lucidchart-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/lucidchart-security-basics, .gemini/skills/lucidchart-security-basics, .github/skills/lucidchart-security-basics and .opencode/skills/lucidchart-security-basics in your project.
What does Lucidchart Security Basics need to run?
SKILL.md names no scripts, command-line tools or credentials: Lucidchart Security Basics is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, WebFetch, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code; credential, scope, data-retention, publication, and production-remediation decisions require security and resource-owner approval.
Does Lucidchart Security Basics 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 Lucidchart 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 Lucidchart Security Basics use?
Lucidchart 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 Lucidchart Security Basics use?
About 1k tokens (SKILL.md is roughly 4k 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 266 tokens, read only when the agent opens those files.
What are the alternatives to Lucidchart Security Basics?
Skills that share tags, products or a category with Lucidchart Security Basics: Vuln Scan (hashgraph-online/awesome-codex-plugins, 1.3k stars), Security And Hardening (penpot/penpot, 61k stars), Forensify (alexgreensh/repo-forensics, 190 stars) and Create Rule (cartography-cncf/cartography, 4.1k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Lucidchart 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.