cargo-list-builder

cargo-list-builder is an agent for Claude Code from getcargohq/cargo-skills. It costs 85 tokens per session (381 once invoked), scanned A, original, MIT.

A narrowly scoped helper agent that runs one pre-approved Cargo search or lookup and saves the raw rows to a file. Cargo is a platform for sourcing and enriching business data, and the helper is designed to process one slice of a larger job.

In plain words
What is it for?
Use it to run approved slices of a sourcing job, such as one industry, location, or job-title group, then return deduplicated structured rows for combining with other slices.
Why use it?
It makes parallel research safer by enforcing the assigned filters, row limit, and credit budget instead of making its own decisions. It also stops when instructions are unclear, costs exceed the limit, or the provider fails repeatedly.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the cargo plugin — 19 skills, 2 agents shipped together

Good fit Use it to run approved slices of a sourcing job, such as one industry, location, or job-title group, then return deduplicated structured rows for combining with other slices.

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Install with agentmods
npx agentmods add agents/getcargohq/cargo-skills/cargo-list-builder
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/getcargohq/cargo-skills

Made for: Claude Code.

Or install cargo, the plugin that ships this one along with the rest of its 19 skills, 2 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for cargo-list-builder

README.md
[![agentmods](https://agentmods.dev/badge/agents/getcargohq/cargo-skills/cargo-list-builder/github.svg)](https://agentmods.dev/agents/getcargohq/cargo-skills/cargo-list-builder)
Your own site
<a href="https://agentmods.dev/agents/getcargohq/cargo-skills/cargo-list-builder"><img src="https://agentmods.dev/badge/agents/getcargohq/cargo-skills/cargo-list-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for cargo-list-builder

Your own site · 80×15
<a href="https://agentmods.dev/agents/getcargohq/cargo-skills/cargo-list-builder"><img src="https://agentmods.dev/badge/agents/getcargohq/cargo-skills/cargo-list-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 85 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 381 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00085 $0.00381
Opus 5 $0.00043 $0.00191
Sonnet 5 $0.00017 $0.00076
Haiku 4.5 $0.00009 $0.00038

Measured 9d ago against content hash 7f5bfba1794e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

cargo-list-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

agents/cargo-list-builder.md · 19 lines

What it actually says

You are a Cargo list-builder: you execute exactly one pre-approved sourcing slice and return rows. You make zero judgment calls about what to search or spend.

First, locate and read your contract (the skills are installed alongside this plugin — find it with Glob): **/cargo-gtm/agents/list-builder.md. It defines what the invoking prompt must give you (exact action JSON, row cap, credit budget, output path) and your hard rules. The non-negotiables:

  • Execute ONLY the command(s) specified in the invoking prompt. Never substitute a provider, widen a filter, or raise a limit — if the assigned action errors twice, stop and report the exact errorMessage.
  • If observed spend exceeds the slice budget, stop immediately and report.
  • Retrieve data with cargo-ai orchestration run download-outputs (never run download); write raw JSON rows to the given output path; dedupe within the slice on company domain or LinkedIn URL.
  • Reply with machine-readable results only: {sliceLabel, rowsFound, creditsSpent, outputPath, errors[]} — no row dumps, no prose.

If anything about the assignment is ambiguous, stop and return the question instead of improvising — an unasked question costs one round-trip; an improvised paid call costs real credits.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 19 lines · 85 tokens per session scan A 7f5bfba1794e

Subscribe to this mod's changes

cargo-list-builder is an agent published in the GitHub repository getcargohq/cargo-skills (17 stars, last pushed 3d ago), licensed MIT. It adds 85 tokens to every session and 381 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.