Agent skill

Flexport Webhooks Events

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

Verify Flexport webhook signatures on the raw request body and reconcile real event types.

MITAuto-check passedBackend & APIs

Install Flexport Webhooks Events

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

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

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

At a glance

Verify Flexport webhook signatures on the raw request body and reconcile real event types.

  • Works in 6 steps: Register deliberately → Capture raw bytes → Verify SHA-256 → …
  • Building a receiver
  • SKILL.md covers Overview, Prerequisites, Instructions and Authentication, plus 5 more sections
  • Reaches api.flexport.com and mcp.flexport.com

What it does

Flexport Webhooks Events is an agent skill from jeremylongshore/tons-of-skills-marketplace. Verify Flexport webhook signatures on the raw request body and reconcile real event types. Use when building a receiver, rotating webhook secrets, processing shipment or purchase-order events, or recovering delivery gaps. Trigger with: "verify Flexport webhook", "handle Flexport event", "reconcile webhook gap".

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 public HTTPS receiver, Flexport account Settings access, raw-body access, and a secret store.

It sits in Backend & APIs, covering Webhooks and Forms and invoices. 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

  • Building a receiver
  • Rotating webhook secrets
  • Processing shipment
  • Purchase-order events

Example prompts

  • “verify Flexport webhook”
  • “handle Flexport event”
  • “reconcile webhook gap”
  • “/flexport-webhooks-events”

Requirements

  • Compatibility (from SKILL.md): Requires a public HTTPS receiver, Flexport account Settings access, raw-body access, and a secret store.
  • Pre-approved tools (allowed-tools): Read, Grep, Write, Edit

Workflow steps

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

  1. Register deliberately
  2. Capture raw bytes
  3. Verify SHA-256
  4. Acknowledge quickly
  5. Deduplicate and route
  6. Reconcile gaps

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:

    • 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 a public HTTPS receiver, Flexport account Settings access, raw-body access, and a secret store.

    From compatibility in the SKILL.md frontmatter.

Context cost

Flexport Webhooks Events 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 397 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). 397 words, ~1,065 tokens.

Download SKILL.mdSave it as .claude/skills/flexport-webhooks-events/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
flexport-webhooks-events
description
Verify Flexport webhook signatures on the raw request body and reconcile real event types. Use when building a receiver, rotating webhook secrets, processing shipment or purchase-order events, or recovering delivery gaps. Trigger with: "verify Flexport webhook", "handle Flexport event", "reconcile webhook gap".
allowed-tools
Read, Grep, Write, Edit
compatibility
Requires a public HTTPS receiver, Flexport account Settings access, raw-body access, and a secret store.
version
2.0.0
argument-hint
[receiver-event-types-and-secret-alias]
model
inherit
effort
high
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, flexport, webhooks, security

Flexport Webhook Integrity and Reconciliation

Overview

Authenticate before parsing. Flexport documents both SHA-1 and SHA-256 signatures, with SHA-256 recommended in X-Hub-Signature-256; compare against the raw UTF-8 body and treat webhook delivery as a notification that may require API reconciliation.

Prerequisites

  • Unique receiver URL and high-entropy webhook secret
  • Framework support for raw request bytes before JSON parsing
  • Allowlisted slash/hash event types and idempotency store

Instructions

Step 1: Register deliberately

Configure the callback and secret in Flexport account Settings. Record the intended event types and owner.

Step 2: Capture raw bytes

Read the exact request body before middleware transforms encoding or JSON layout.

Step 3: Verify SHA-256

Compute HMAC-SHA256 with the stored secret, parse X-Hub-Signature-256, reject malformed or unequal-length inputs, and use constant-time comparison.

Step 4: Acknowledge quickly

After authentication and durable enqueue, return HTTP 200 promptly. Keep business processing out of the request path.

Step 5: Deduplicate and route

Use provider event identity when present or a stable payload digest. Allow only documented names such as /shipment#created or /purchase_order#updated.

Step 6: Reconcile gaps

Use authorized REST /events or resource reads when evidence indicates a delivery gap; do not invent a webhook replay endpoint or retry schedule.

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 (152 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

The receiver verifies X-Hub-Signature-256 over untouched bytes, durably enqueues /shipment_leg#departed, returns 200, and lets a worker reconcile the referenced shipment before updating local state.

Error Handling

FailureResponse
Signature missing or malformedReturn an authentication failure and store no payload.
Digest lengths differReject before constant-time comparison rather than throwing.
Unknown event typeQuarantine metadata and compare with current event documentation.
Duplicate deliveryReturn success after confirming the prior durable operation.

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-webhooks-events of jeremylongshore/tons-of-skills-marketplace.

  • SKILL.md
  • references/official-docs.md

Open the folder on GitHubat commit cfae287

Compare with similar skills

Flexport Webhooks Events 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 Webhooks Events compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Flexport Webhooks Events this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.1kAutomated safety check: PassMIT
Cashier Stripe Developmentluadotsh/lua3431 repos~1.2kAutomated safety check: PassMIT
Stripe Patternsbybren-llc/safe-agentic-workflow423—~1.2kAutomated safety check: PassMIT
Billingtrycompai/comp2k—~824Automated safety check: PassAGPL-3.0
Int Omieevolution-foundation/evo-nexus545—~590Automated safety check: PassCustom licence
Payram Topup Wallet IntegrationPayRam/payram-mcp158—~3kAutomated safety check: PassNone

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Categories

Questions about Flexport Webhooks Events

What does Flexport Webhooks Events do?

Verify Flexport webhook signatures on the raw request body and reconcile real event types. Flexport Webhooks Events is an agent skill from jeremylongshore/tons-of-skills-marketplace. Verify Flexport webhook signatures on the raw request body and reconcile real event types.

When should I use Flexport Webhooks Events?

Flexport Webhooks Events fits situations like: building a receiver; rotating webhook secrets; processing shipment; purchase-order events.

How do I install Flexport Webhooks Events in Claude Code?

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

How do I install Flexport Webhooks Events in Codex?

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

Can I use Flexport Webhooks Events 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-webhooks-events -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-webhooks-events, .gemini/skills/flexport-webhooks-events, .github/skills/flexport-webhooks-events and .opencode/skills/flexport-webhooks-events in your project.

What does Flexport Webhooks Events need to run?

SKILL.md names no scripts, command-line tools or credentials: Flexport Webhooks Events is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Write, Edit. Compatibility (from SKILL.md): Requires a public HTTPS receiver, Flexport account Settings access, raw-body access, and a secret store..

Does Flexport Webhooks Events access the network?

SKILL.md names 3 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: apidocs.flexport.com. This is read from the text; nothing was executed.

Is Flexport Webhooks Events 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 Webhooks Events use?

Flexport Webhooks Events 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 Webhooks Events 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 215 tokens, read only when the agent opens those files.

What are the alternatives to Flexport Webhooks Events?

Skills that share tags, products or a category with Flexport Webhooks Events: Cashier Stripe Development (luadotsh/lua, 343 stars), Stripe Patterns (bybren-llc/safe-agentic-workflow, 423 stars), Billing (trycompai/comp, 2k stars) and Int Omie (evolution-foundation/evo-nexus, 545 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Flexport Webhooks Events?

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.