Agent skill

Flexport Common Errors

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

Classify Flexport REST, OAuth, webhook, and MCP failures into safe operator actions.

MITAuto-check passedBackend & APIs

Install Flexport Common Errors

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

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

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

At a glance

Classify Flexport REST, OAuth, webhook, and MCP failures into safe operator actions.

  • Works in 6 steps: Identify the surface → Protect evidence → Classify deterministically → …
  • Triaging status/code/message errors
  • SKILL.md covers Overview, Prerequisites, Instructions and Authentication, plus 5 more sections
  • Reaches api.flexport.com and mcp.flexport.com

What it does

Flexport Common Errors is an agent skill from jeremylongshore/tons-of-skills-marketplace. Classify Flexport REST, OAuth, webhook, and MCP failures into safe operator actions. Use when triaging status/code/message errors, permission failures, validation problems, or ambiguous mutations. Trigger with: "debug Flexport error", "Flexport 422", "Flexport permission denied".

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 redacted response receipt with surface, operation, HTTP or JSON-RPC status, and correlation metadata.

It sits in Backend & APIs, covering Webhooks and OAuth and OpenID Connect. It works with Model Context Protocol. 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

  • Triaging status/code/message errors
  • Permission failures
  • Validation problems
  • Ambiguous mutations

Example prompts

  • “debug Flexport error”
  • “Flexport 422”
  • “Flexport permission denied”
  • “/flexport-common-errors”

Requirements

  • Compatibility (from SKILL.md): Requires a redacted response receipt with surface, operation, HTTP or JSON-RPC status, and correlation metadata.
  • Pre-approved tools (allowed-tools): Read, Grep, Write, Edit

Workflow steps

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

  1. Identify the surface
  2. Protect evidence
  3. Classify deterministically
  4. Choose retry eligibility
  5. Correct the owner
  6. Close with a proof

What it can do on your machine

Read from SKILL.md and the folder at commit 80f86df. 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
    • developers.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 redacted response receipt with surface, operation, HTTP or JSON-RPC status, and correlation metadata.

    From compatibility in the SKILL.md frontmatter.

Context cost

Flexport Common Errors 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 76 tokens; SKILL.md has 422 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~76
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 80f86df, republished under its MIT licence (© jeremylongshore). 422 words, ~1,077 tokens.

Download SKILL.mdSave it as .claude/skills/flexport-common-errors/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
flexport-common-errors
description
Classify Flexport REST, OAuth, webhook, and MCP failures into safe operator actions. Use when triaging status/code/message errors, permission failures, validation problems, or ambiguous mutations. Trigger with: "debug Flexport error", "Flexport 422", "Flexport permission denied".
allowed-tools
Read, Grep, Write, Edit
compatibility
Requires a redacted response receipt with surface, operation, HTTP or JSON-RPC status, and correlation metadata.
version
2.0.0
argument-hint
[redacted-failure-receipt]
model
inherit
effort
high
license
MIT
author
Jeremy Longshore <jeremy@intentsolutions.io>
tags
saas, flexport, errors, operations

Flexport Failure Classification

Overview

Do not convert every failure into a retry. First identify the surface and operation class, then distinguish authentication, authorization, validation, provider availability, and ambiguous mutation outcomes.

Prerequisites

  • Redacted surface and operation name
  • HTTP status or JSON-RPC error plus documented provider code/message
  • Knowledge of whether the failed operation could mutate freight or trade records

Instructions

Step 1: Identify the surface

Label OAuth token, REST v3, MCP JSON-RPC, or webhook delivery; each has different failure semantics.

Step 2: Protect evidence

Capture timestamp, credential alias, version header, operation digest, status/code/message, and provider correlation metadata without payloads or secrets.

Step 3: Classify deterministically

Separate 401 authentication, 403 permission/scope, 404 resource or route, 400/422 request validation, throttling evidence, and 5xx/transport uncertainty.

Step 4: Choose retry eligibility

Retry only transient, idempotent work with bounded backoff. Never retry a create or booking until its prior outcome is reconciled.

Step 5: Correct the owner

Route credential issues to credential owners, schema issues to integration owners, business validation to data owners, and provider incidents to support.

Step 6: Close with a proof

Record the corrected contract or recovered result and add a regression fixture when the defect was local.

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 (178 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 document upload returns 422 with a provider message. The operator preserves the code/message, fixes the source document metadata, and submits a new approved operation rather than repeatedly sending the unchanged payload.

Error Handling

FailureResponse
401 persists after one cached-token refreshStop and inspect credential revocation, audience, and secret source.
403 on one endpointVerify OAuth endpoint resources or MCP role permission; do not broaden silently.
404 on /tools/...Use the real MCP JSON-RPC endpoint rather than the synthetic docs path.
Timeout after mutationReconcile using known references before any retry.

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-common-errors of jeremylongshore/tons-of-skills-marketplace.

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

Open the folder on GitHubat commit 80f86df

Compare with similar skills

Flexport Common Errors 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 Common Errors compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Flexport Common Errors this skilljeremylongshore/tons-of-skills-marketplace2.8k—~1.1kAutomated safety check: PassMIT
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X Twitter ScraperXquik-dev/x-twitter-scraper2101 repos~2.6kAutomated safety check: PassMIT
Zalo AgentPhucMPham/zalo-agent-cli164—~2.3kAutomated safety check: PassMIT
Xquik MCPXquik-dev/x-twitter-scraper2101 repos~997Automated safety check: PassMIT
Discord Php Bot Securitydiscord-php/DiscordPHP1.1k—~1.2kAutomated safety check: NotesMIT

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Categories

Questions about Flexport Common Errors

What does Flexport Common Errors do?

Classify Flexport REST, OAuth, webhook, and MCP failures into safe operator actions. Flexport Common Errors is an agent skill from jeremylongshore/tons-of-skills-marketplace. Classify Flexport REST, OAuth, webhook, and MCP failures into safe operator actions.

When should I use Flexport Common Errors?

Flexport Common Errors fits situations like: triaging status/code/message errors; permission failures; validation problems; ambiguous mutations.

How do I install Flexport Common Errors in Claude Code?

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

How do I install Flexport Common Errors in Codex?

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

Can I use Flexport Common Errors 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-common-errors -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-common-errors, .gemini/skills/flexport-common-errors, .github/skills/flexport-common-errors and .opencode/skills/flexport-common-errors in your project.

What does Flexport Common Errors need to run?

SKILL.md names no scripts, command-line tools or credentials: Flexport Common Errors is instructions for the agent only. Its frontmatter pre-approves these tools: Read, Grep, Write, Edit. Compatibility (from SKILL.md): Requires a redacted response receipt with surface, operation, HTTP or JSON-RPC status, and correlation metadata..

Does Flexport Common Errors 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: apidocs.flexport.com and developers.flexport.com. This is read from the text; nothing was executed.

Is Flexport Common Errors 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 Common Errors use?

Flexport Common Errors 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 Common Errors 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 213 tokens, read only when the agent opens those files.

What are the alternatives to Flexport Common Errors?

Skills that share tags, products or a category with Flexport Common Errors: Stripe Best Practices (kanchengw/cnllm, 175 stars), X Twitter Scraper (Xquik-dev/x-twitter-scraper, 210 stars), Zalo Agent (PhucMPham/zalo-agent-cli, 164 stars) and Xquik MCP (Xquik-dev/x-twitter-scraper, 210 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Flexport Common Errors?

jeremylongshore (a GitHub user) maintains it in jeremylongshore/tons-of-skills-marketplace, which has 2,825 GitHub stars. The repository holds 3,342 skills in this directory. The repository was last updated on October 9, 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.