Getting it into your agent
It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.
git clone --depth 1 https://github.com/getcargohq/cargo-skillsnpx agentmods add skills/getcargohq/cargo-skills/cargo-hostingWrote 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.
[](https://agentmods.dev/skills/getcargohq/cargo-skills/cargo-hosting)<a href="https://agentmods.dev/skills/getcargohq/cargo-skills/cargo-hosting"><img src="https://agentmods.dev/badge/skills/getcargohq/cargo-skills/cargo-hosting/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.
<a href="https://agentmods.dev/skills/getcargohq/cargo-skills/cargo-hosting"><img src="https://agentmods.dev/badge/skills/getcargohq/cargo-skills/cargo-hosting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk pass
- NVIDIA SkillSpector warn
SkillSpector: 2 findings, up to high
These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →
- high Privilege Escalation · line 78 Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
- medium MCP Rug Pull · line 40 npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.Fix: Pin the version: npx @scope/[email protected]
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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00126 | $0.02269 |
| Opus 5 | $0.00063 | $0.01135 |
| Sonnet 5 | $0.00025 | $0.00454 |
| Haiku 4.5 | $0.00013 | $0.00227 |
Grade A, and why
cargo-hosting scanned grade A with 1 finding 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 10d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
- **Worker** — a serverless HTTP handler that runs on the edge (`fetch(request, env)`), built on `@cargo-ai/worker-sdk` (auto OpenAPI 3.1 spec at `/openapi.json`, Swagger UI at `/docs`). How it starts
The opening of the file, as written. The whole thing — 157 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cargo CLI — Hosting
Cargo Hosting runs two kinds of workspace-scoped resources, plus the deployments that ship them:
- App — a Vite single-page app served on
https://<slug>.cargo.app, built on@cargo-ai/app-sdk(Vite + refine + shadcn primitives, withgetCargoEnv()/useCargoApi()wired to the workspace). - Worker — a serverless HTTP handler that runs on the edge (
fetch(request, env)), built on@cargo-ai/worker-sdk(auto OpenAPI 3.1 spec at/openapi.json, Swagger UI at/docs). - Deployment — one build+upload of a local source directory to an app or worker. A deployment is not live until it's promoted.
For organizing apps/workers into folders, use
cargo-workspace-management(folder …). The--folder-uuidflags here consume those folder UUIDs.
See
references/examples/apps.md,references/examples/workers.md, andreferences/examples/deployments.mdfor end-to-end walkthroughs. Seereferences/response-shapes.mdfor JSON response structures. Seereferences/troubleshooting.mdfor common errors and how to fix them.
Bootstrap
Already signed in (cargo-ai whoami returns a workspace)? Skip to the next section.
npm install -g @cargo-ai/cli # no global install? prefix every command with `npx @cargo-ai/cli`
cargo-ai login --email [email protected] # emailed code, no browser; creates the account on first use
# alternatives: --oauth (browser) · --token <api-token> (CI)
cargo-ai whoami # confirm the active workspace before any write
Every command prints JSON to stdout; failures exit non-zero with {"errorMessage": "..."}. Anything that creates a run or a batch is async — pass --wait-until-finished or poll the matching get. When the full skill bundle is installed, ../cargo/references/prerequisites.md adds the CLI version pin, token scopes, and the admin-only surface.
What ships with it
6 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 10d ago First seen · 157 lines · 126 tokens per session scan A 8c92b7cea598
cargo-hosting is a skill published in the GitHub repository getcargohq/cargo-skills (17 stars, last pushed 4d ago), licensed MIT. It adds 126 tokens to every session and 2,269 once invoked, about $0.0006 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
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