Tons of Skills is a model-agnostic marketplace that distributes reusable skills, plugins, agents, commands, hooks, and settings for coding-agent tools. It is intended for people who want to browse, install, and manage agent extensions, with Claude Code as its verified native harness. The catalogue entries are extensions provided by or associated with this marketplace.
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.
npx skills add jeremylongshore/tons-of-skills-marketplace --skill backgroundgit clone --depth 1 https://github.com/jeremylongshore/tons-of-skills-marketplaceWrote 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/jeremylongshore/tons-of-skills-marketplace/background)<a href="https://agentmods.dev/skills/jeremylongshore/tons-of-skills-marketplace/background"><img src="https://agentmods.dev/badge/skills/jeremylongshore/tons-of-skills-marketplace/background/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/jeremylongshore/tons-of-skills-marketplace/background"><img src="https://agentmods.dev/badge/skills/jeremylongshore/tons-of-skills-marketplace/background.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00089 | $0.02080 |
| Opus 5.5 | $0.00036 | $0.00832 |
| Sonnet 5.5 | $0.00018 | $0.00416 |
| Haiku 4.5 | $0.00009 | $0.00208 |
Grade A, and why
background 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 1mo 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.
How it starts
The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Background
Read-only-by-default management interface for background agents fired by other hyperflow skills (dispatch quality gates, deploy CI watcher, scaffold analysis refresh, cache compact, scope speculative prefetch). Reads from .hyperflow/background/registry.json + per-agent output buffers.
Full doctrine: background-agents.md.
Subcommands
| Subcommand | Description |
|---|---|
list |
Print the registry: in-flight · completed-uncollected · stalled · errored |
show <id> |
Print one agent's output buffer (.hyperflow/background/<id>.md) |
cancel <id> |
Cancel one specific in-flight agent |
cancel --all |
Cancel every in-flight agent (use before closing a session) |
prune |
Delete completed .hyperflow/background/<id>.md files older than 7 days |
Default subcommand when none provided: list.
Subcommand Details
list
Read .hyperflow/background/registry.json. Group entries by status and print a compact table:
## In flight (N)
| ID | Purpose | Fired | Timeout | Blocks |
|-----------------------------------|--------------------------------------|------------|---------|---------|
| `bg-1718049600-quality-gates-b2` | Layer 5 gates Batch 2 | 17:30 | 18:00 | step3 |
| `bg-1718049820-ci-watcher` | GitHub Actions watch for v4.7.0 | 17:33 | 18:33 | — |
## Completed (uncollected, N)
| ID | Purpose | Completed | Duration | Output |
|-----------------------------------|--------------------------------------|------------|----------|--------|
| `bg-1718045400-scaffold-refresh` | Refresh .hyperflow/architecture.md | 16:42 | 2m 18s | 1.4kb |
## Stalled / Errored (N)
| ID | Purpose | Status | Reason |
|-----------------------------------|--------------------------------------|-------------------|-------------------|
| `bg-1717980000-cache-compact` | Compact learnings.md | STALLED | timeout (30m) |
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.
- 1mo ago First seen · 179 lines · 89 tokens per session scan A 8aec2ec9190f
background is a skill published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,881 stars, last pushed today), licensed MIT. It adds 89 tokens to every session and 2,080 once invoked, about $0.0004 per session on Opus 5.5. 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.
Other skills, from other repositories
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cortivex-orchestration
Orchestrate multi-agent pipelines with SwarmCoordinator and AgentMonitor nodes for leader election, health monitoring, and auto-recovery.
orca-emulator-android
Android device and emulator control from inside Orca over adb, with the live device view in Orca's emulator pane. Use when driving an adb-connected emulator or phone on Windows, Linux, or macOS: booting AVDs, taps, swipes, typing, hardware buttons, rotation, app install and launch, runtime permissions, the…
foundry-hosted-agent-validation
Step-by-step process for validating a Python Foundry hosted agent sample (under python/samples/04-hosting/foundry-hosted-agents/) end to end — running it locally (native runtime and azd ai agent run) and after deploying it to an Azure AI Foundry project with azd. Use this when asked to validate a hosted agent sample.
python-feature-lifecycle
Guidance for package and feature lifecycle in the Agent Framework Python codebase, including stage meanings, feature-stage decorators, feature enums, and how to move APIs from one stage to the next.
foundry-config-setup
Resolve missing setup caused by a hardcoded Foundry project endpoint or model in a sample. Use when a sample fails because it uses a placeholder/hardcoded projectendpoint (for example "https://your-project.services.ai.azure.com") or a hardcoded model instead of reading them from the environment.