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Agent skill

Navan Security Basics

by jeremylongshore in jeremylongshore/tons-of-skills-marketplace

Threat-model a Navan integration across identity, travel, expense, payment, file, and downstream systems.

MITAuto-check passedSecurity

Install Navan Security Basics

skills CLI
$ npx skills add jeremylongshore/tons-of-skills-marketplace --skill navan-security-basics -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace navan-security-basics --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ 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/navan-security-basics .claude/skills/navan-security-basics && rm -rf skills-src

Use ~/.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/

Facts

Skill name
navan-security-basics
GitHub stars
2.8k
Token cost
~963 tokens
SKILL.md length
398 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Threat-model a Navan integration across identity, travel, expense, payment, file, and downstream systems.

  • Works in 6 steps: Draw trust boundaries from Navan through… → Classify credentials and traveler,… → Minimize fields, purposes, destinations,… → …
  • Performing design
  • SKILL.md covers Overview, Prerequisites, Current Contract and Authentication, plus 8 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Navan Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Threat-model a Navan integration across identity, travel, expense, payment, file, and downstream systems. Use when performing design or security review. Trigger with "secure Navan integration", "Navan threat model", or "review Navan data flow".

Its SKILL.md is about 960 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; live or external Navan actions require network access and explicit approval

It sits in Security, covering Threat modeling and Security review. 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

  • Performing design
  • Security review
  • With secure Navan integration
  • Navan threat model

Example prompts

  • “secure Navan integration”
  • “Navan threat model”
  • “review Navan data flow”
  • “/navan-security-basics”

Requirements

  • Compatibility (from SKILL.md): Designed for Claude Code; live or external Navan actions require network access and explicit approval
  • Pre-approved tools (allowed-tools): Read, Glob, Grep, Write, Edit

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Draw trust boundaries from Navan through every processor and destination.
  2. Classify credentials and traveler, itinerary, payment, receipt, profile, and location data.
  3. Minimize fields, purposes, destinations, retention, and human access.
  4. Model credential theft, tenant mix-up, injection, replay, exfiltration, and confused-deputy paths.
  5. Add deny-by-default network, logging, artifact, and AI-tool policies.
  6. Test detection, containment, revocation, reconciliation, and notification paths.

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:

    • Read
    • Glob
    • Grep
    • Write
    • Edit

    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; live or external Navan actions require network access and explicit approval

    From compatibility in the SKILL.md frontmatter.

Context cost

Navan Security Basics loads about 963 tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 67 tokens; SKILL.md has 398 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~67
When it runs · the whole SKILL.md, loaded when a task matches
~963
With references · SKILL.md plus every file in references/, read only if the agent opens them
~1.3k

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). 398 words, ~963 tokens.

Download SKILL.mdSave it as .claude/skills/navan-security-basics/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
navan-security-basics
description
Threat-model a Navan integration across identity, travel, expense, payment, file, and downstream systems. Use when performing design or security review. Trigger with "secure Navan integration", "Navan threat model", or "review Navan data flow".
allowed-tools
Read, Glob, Grep, Write, Edit
compatibility
Designed for Claude Code; live or external Navan actions require network access and explicit approval
argument-hint
<surface> <data-class> <destination>
version
1.9.0
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, navan, security
model
inherit
effort
high

Navan Integration Security Boundary

Overview

Threat-model a Navan integration across identity, travel, expense, payment, file, and downstream systems. This workflow produces an auditable decision or artifact before any live action.

Prerequisites

  • Access to the selected tenant's current Navan Help Center and contracted integration documentation.
  • A named business owner and data owner for the travel or expense workflow.
  • A non-production evidence set with secrets and traveler data removed.

Current Contract

Navan states that its APIs undergo security testing and that data in transit and sensitive data at rest are encrypted. Those vendor controls do not replace customer-side least privilege, downstream encryption, retention, monitoring, or third-party AI governance.

Authentication

Use dedicated integration identities, scoped access, approved secret storage, host binding, rotation, and revocation. Keep interactive admin and automation credentials separate.

Instructions

  1. Draw trust boundaries from Navan through every processor and destination.
  2. Classify credentials and traveler, itinerary, payment, receipt, profile, and location data.
  3. Minimize fields, purposes, destinations, retention, and human access.
  4. Model credential theft, tenant mix-up, injection, replay, exfiltration, and confused-deputy paths.
  5. Add deny-by-default network, logging, artifact, and AI-tool policies.
  6. Test detection, containment, revocation, reconciliation, and notification paths.

Tool Discipline

Use Read, Glob, and Grep to inspect documentation, schemas, configuration, code, fixtures, and evidence. Use Write and Edit only for approved repository artifacts. Invocation alone does not authorize network access, credentials, traveler or expense data, bookings, payments, policy or identity changes, file transfers, deployments, or deletion.

Show full SKILL.md (159 more words)Show less

Approval Boundaries

Any new processor, third-party AI or MCP connection, broader scope, production secret, cross-border transfer, or sensitive-data export requires security and data-owner approval.

Error Handling

  • Do not put traveler or receipt content in prompts or logs by default.
  • Certification badges are not authorization for a new use.
  • Fail closed on tenant, host, identity, or destination ambiguity.

Output

Return a data-flow diagram, threat register, control owners, residual risks, approval boundaries, and verification plan. Identify assumptions, owners, expirations, and evidence gaps explicitly.

Examples

  • Review a Booking API feed into a duty-of-care vendor.
  • Constrain an MCP assistant to a minimal approved itinerary view.

Validation

Exercise tenant isolation, revoked credentials, malicious fields, log redaction, unauthorized destination, and incident containment. Record expected and observed results, including fail-closed behavior.

Resources

  • Current first-party evidence map — recheck dated sources and the selected tenant's in-account contract before relying on mutable endpoints, fields, entitlements, limits, or delivery behavior.
  • Record tenant observations as environment-specific evidence, never universal Navan guarantees.

© 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/navan-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

Navan 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.

Navan Security Basics compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Navan Security Basics this skilljeremylongshore/tons-of-skills-marketplace2.8k—~963Automated safety check: PassMIT
Commit Security Scancodexstar69/bug-hunter520—~629Automated safety check: PassMIT
Auditing Code For Vulnerabilitiestrilwu/secskills157—~3.2kAutomated safety check: PassMIT
Threat Mitigation Mappingwshobson/agents40k8 repos~742Automated safety check: PassMIT
Audit Browser Security Boundariesnordstjernen-web/northstar-browser127—~920Automated safety check: PassGPL-3.0
Security Auditblueberrycongee/termcanvas405—~966Automated safety check: NotesMIT

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Categories

Questions about Navan Security Basics

What does Navan Security Basics do?

Threat-model a Navan integration across identity, travel, expense, payment, file, and downstream systems. Navan Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Threat-model a Navan integration across identity, travel, expense, payment, file, and downstream systems.

When should I use Navan Security Basics?

Navan Security Basics fits situations like: performing design; security review; with secure Navan integration; navan threat model.

How do I install Navan Security Basics in Claude Code?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill navan-security-basics -a claude-code`. Or copy the skill folder (skills/.curated/navan-security-basics in jeremylongshore/tons-of-skills-marketplace) into .claude/skills/navan-security-basics in your project. Claude Code loads it when a task matches its description.

How do I install Navan Security Basics in Codex?

Run `npx skills add jeremylongshore/tons-of-skills-marketplace --skill navan-security-basics -a codex`. Or copy the skill folder (skills/.curated/navan-security-basics in jeremylongshore/tons-of-skills-marketplace) into .agents/skills/navan-security-basics in your project. Codex loads it when a task matches its description.

Can I use Navan 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 navan-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/navan-security-basics, .gemini/skills/navan-security-basics, .github/skills/navan-security-basics and .opencode/skills/navan-security-basics in your project.

What does Navan Security Basics need to run?

SKILL.md names no scripts, command-line tools or credentials: Navan Security Basics is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Glob, Grep, Write, Edit. Compatibility (from SKILL.md): Designed for Claude Code; live or external Navan actions require network access and explicit approval.

Does Navan 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 Navan 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 Navan Security Basics use?

Navan 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 Navan Security Basics use?

About 963 tokens (SKILL.md is roughly 3.9k 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 287 tokens, read only when the agent opens those files.

What are the alternatives to Navan Security Basics?

Skills that share tags, products or a category with Navan Security Basics: Commit Security Scan (codexstar69/bug-hunter, 520 stars), Auditing Code For Vulnerabilities (trilwu/secskills, 157 stars), Threat Mitigation Mapping (wshobson/agents, 40k stars) and Audit Browser Security Boundaries (nordstjernen-web/northstar-browser, 127 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Navan 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.