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Agent skill

Flexport Security Basics

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

Analyze and harden Flexport credentials, tokens, webhook verification, data exposure, and mutation controls.

MITAuto-check passedBackend & APIs

Install Flexport Security Basics

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

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

GitHub CLI
$ gh skill install jeremylongshore/tons-of-skills-marketplace flexport-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/flexport-security-basics .claude/skills/flexport-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
flexport-security-basics
GitHub stars
2.8k
Token cost
~1.1k tokens
SKILL.md length
391 words
Files
2 (incl. references)
Skills in repo
3,342
Repo updated
First seen
Licence
MIT

At a glance

Analyze and harden Flexport credentials, tokens, webhook verification, data exposure, and mutation controls.

  • Works in 6 steps: Minimize credentials → Protect tokens → Authenticate webhooks first → …
  • Performing threat modeling
  • SKILL.md covers Overview, Prerequisites, Instructions and Authentication, plus 5 more sections
  • Reaches api.flexport.com and mcp.flexport.com

What it does

Flexport Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Analyze and harden Flexport credentials, tokens, webhook verification, data exposure, and mutation controls. Use when performing threat modeling, security review, credential rotation, or receiver implementation. Trigger with: "secure Flexport integration", "review Flexport secrets", "Flexport webhook security".

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 an approved secret store, TLS egress/ingress, access review, and incident response.

It sits in Backend & APIs, covering Webhooks, 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 threat modeling
  • Security review
  • Credential rotation
  • Receiver implementation

Example prompts

  • “secure Flexport integration”
  • “review Flexport secrets”
  • “Flexport webhook security”
  • “/flexport-security-basics”

Requirements

  • Compatibility (from SKILL.md): Requires an approved secret store, TLS egress/ingress, access review, and incident response.
  • Pre-approved tools (allowed-tools): Read, Grep, Write, Edit

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Minimize credentials
  2. Protect tokens
  3. Authenticate webhooks first
  4. Constrain egress and input
  5. Guard mutations
  6. Exercise response

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
    • 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 (its code samples are yaml).

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Hosts in commands or code, which the agent is likely to contact:

    • api.flexport.com
    • mcp.flexport.com

    Also links to:

    • developers.flexport.com
    • apidocs.flexport.com

    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 an approved secret store, TLS egress/ingress, access review, and incident response.

    From compatibility in the SKILL.md frontmatter.

Context cost

Flexport Security Basics loads about 1.1k tokens when it runs, and up to ~1.3k if it reads all its reference files. Until then it costs about 84 tokens; SKILL.md has 391 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~84
When it runs · the whole SKILL.md, loaded when a task matches
~1.1k
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). 391 words, ~1,072 tokens.

Download SKILL.mdSave it as .claude/skills/flexport-security-basics/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
flexport-security-basics
description
Analyze and harden Flexport credentials, tokens, webhook verification, data exposure, and mutation controls. Use when performing threat modeling, security review, credential rotation, or receiver implementation. Trigger with: "secure Flexport integration", "review Flexport secrets", "Flexport webhook security".
allowed-tools
Read, Grep, Write, Edit
compatibility
Requires an approved secret store, TLS egress/ingress, access review, and incident response.
version
2.0.0
argument-hint
[integration-and-threat-model]
model
inherit
effort
high
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, flexport, security, hardening

Flexport Integration Security Baseline

Overview

Protect four high-value boundaries: OAuth/API credentials, cached tokens, webhook secrets/raw bodies, and business mutations that can create freight or trade records.

Prerequisites

  • Threat model with account, workload, and data boundaries
  • Endpoint-scoped credential plan and broad-key exception register
  • Secret scanning, redacted telemetry, rotation, and incident procedures

Instructions

Step 1: Minimize credentials

Prefer distinct endpoint-scoped OAuth clients. Treat API keys as broad-access exceptions and never record secret values or suffixes.

Step 2: Protect tokens

Request with the documented audience/grant, cache encrypted 24-hour JWTs, single-flight refresh, and never pass tokens through browser state or logs.

Step 3: Authenticate webhooks first

Verify raw-body HMAC-SHA256 from X-Hub-Signature-256, reject malformed/length-mismatched values, then parse and enqueue.

Step 4: Constrain egress and input

Allow documented Flexport hosts, validate schemas and sizes, preserve opaque IDs, and reject unexpected mutation intent.

Step 5: Guard mutations

Require business authorization, durable operation keys, one writer, and reconciliation before retrying bookings or record creation.

Step 6: Exercise response

Test credential revocation, webhook secret rotation, log leakage, provider outage, and rollback with metadata-only evidence.

Authentication

REST calls authenticate with a cached OAuth 2.0 client-credentials Bearer token using audience https://api.flexport.com, or an explicitly accepted broad API key. Use distinct credentials per workload and never log credentials or tokens. MCP calls use the authenticated connection to https://mcp.flexport.com/mcp and remain subject to each tool's documented account permissions.

Show full SKILL.md (166 more words)Show less

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 Flexport-side change.

Output

  • Scoped decision or implementation artifact
  • Redacted operation and validation receipt
  • Failure, rollback, and follow-up ownership record

Return a machine-reviewable receipt in this shape; adapt the operation values, but never place credentials or provider payloads in it:

yaml
surface: rest-v3
operation: shipment-read
decision: approved
outcome: verified
evidence:
  release_sha: recorded-out-of-band
  provider_reference: redacted
rollback_owner: logistics-platform

Examples

A shipment reader and invoice importer use different scoped OAuth clients. A leaked client triggers revocation and replacement of only that workload, while webhook processing remains isolated behind its own secret.

Error Handling

FailureResponse
Credential committed or loggedRevoke/rotate, contain the artifact, and repair injection/redaction.
Signature checked after JSON parsingReject the implementation and restore raw-body verification.
Broad key used by many workloadsSegment and migrate to scoped clients.
Uncertain booking retry requestedBlock it until provider state is reconciled.

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/flexport-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

Flexport 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.

Flexport Security Basics compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Flexport Security Basics this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.1kAutomated safety check: PassMIT
Sec Checkwaynesutton/markdown-site627—~753Automated safety check: PassMIT
Security Threat Modelmajiayu000/spellbook287—~561Automated safety check: PassMIT
Security Threat Modelingdevcodex-labs/devcodex439—~771Automated safety check: PassAGPL-3.0
Review Maple SecurityMaplePrivacyLabs/Maple102—~7.1kAutomated safety check: PassMIT
Security Reviewtrycompai/comp2k—~853Automated safety check: PassAGPL-3.0

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Categories

Questions about Flexport Security Basics

What does Flexport Security Basics do?

Analyze and harden Flexport credentials, tokens, webhook verification, data exposure, and mutation controls. Flexport Security Basics is an agent skill from jeremylongshore/tons-of-skills-marketplace. Analyze and harden Flexport credentials, tokens, webhook verification, data exposure, and mutation controls.

When should I use Flexport Security Basics?

Flexport Security Basics fits situations like: performing threat modeling; security review; credential rotation; receiver implementation.

How do I install Flexport Security Basics in Claude Code?

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

How do I install Flexport Security Basics in Codex?

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

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

What does Flexport Security Basics need to run?

SKILL.md names no scripts, command-line tools or credentials: Flexport Security Basics is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Write, Edit. Compatibility (from SKILL.md): Requires an approved secret store, TLS egress/ingress, access review, and incident response..

Does Flexport Security Basics access the network?

SKILL.md names 4 domains. In commands or code: api.flexport.com and mcp.flexport.com; the agent is likely to contact these when it follows the instructions. As links in the text: developers.flexport.com and apidocs.flexport.com. This is read from the text; nothing was executed.

Is Flexport 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 Flexport Security Basics use?

Flexport 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 Flexport 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 226 tokens, read only when the agent opens those files.

What are the alternatives to Flexport Security Basics?

Skills that share tags, products or a category with Flexport Security Basics: Sec Check (waynesutton/markdown-site, 627 stars), Security Threat Model (majiayu000/spellbook, 287 stars), Security Threat Modeling (devcodex-labs/devcodex, 439 stars) and Review Maple Security (MaplePrivacyLabs/Maple, 102 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Flexport 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.