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 handoffgit 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/handoff)<a href="https://agentmods.dev/skills/jeremylongshore/tons-of-skills-marketplace/handoff"><img src="https://agentmods.dev/badge/skills/jeremylongshore/tons-of-skills-marketplace/handoff/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/handoff"><img src="https://agentmods.dev/badge/skills/jeremylongshore/tons-of-skills-marketplace/handoff.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 | $0.00088 | $0.01068 |
| Opus 5.5 | $0.00035 | $0.00427 |
| Sonnet 5.5 | $0.00018 | $0.00214 |
| Haiku 4.5 | $0.00009 | $0.00107 |
Grade A, and why
handoff 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 — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Handoff
Operator interface for two-session execution: one session plans (session=two at the Step 0 gate), a second
session in another environment builds, and the first session reviews. The lifecycle and package format are defined
in ../hyperflow/session-handoff.md; this skill is the thin set of verbs over it
(mirrors how /hyperflow:flush fronts the deferred-commit machinery).
Packages live at .hyperflow-handoff/<slug>/ (committed, so they travel via git). STATUS (planned → built → reviewed) is the single source of truth and decides which side of the handoff you are on.
Subcommands
list
Read-only. List every .hyperflow-handoff/*/ (excluding .archive/): slug · STATUS · on_complete · age. Group
by status so the user sees what is awaiting build vs awaiting review.
status [<slug>]
Show the HANDOFF.md manifest + STATUS for one package (or all). When STATUS=built, also print the
COMPLETION.md diff range and commit count. Read-only.
pickup <slug> — build side
Thin alias for starting the second-session build: invoke Skill with skill: dispatch and args: "<slug>".
Dispatch's Step 1.0 rehydrates artefact/ into .hyperflow/, runs /hyperflow:scaffold if the cache is missing,
builds the batches, writes COMPLETION.md + STATUS=built, and then deploys or stops per on_complete.
review <slug> — planning side
- Require
STATUS=built(else: "handoff<slug>is<status>— nothing to review yet"). - Read
COMPLETION.md→ extractDiff range = <base>..<head>. - Invoke
Skillwithskill: auditandargs: "<base>..<head> level=3"(level=5when the originating triage flow inHANDOFF.mdwasscientificorsecurity). The audit dispatches the matching domain specialist reviewers over the second session's diff. - On audit clean pass → fire the deploy gate (
AskUserQuestion—Run /hyperflow:deploy? Yes / No, binary, no marker). OnNEEDS_FIX→ the audit fix-gate (Yes→/hyperflow:plan→/hyperflow:dispatch) handles it. - Set
STATUS=reviewedonce the review is accepted.
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 · 71 lines · 88 tokens per session scan A 376ad0353159
handoff is a skill published in the GitHub repository jeremylongshore/tons-of-skills-marketplace (2,881 stars, last pushed today), licensed MIT. It adds 88 tokens to every session and 1,068 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
quality-gate
Orchestrates the QUALITY pipeline stage for egregore work items, running code review, unbloat, and test updates. Use when running quality checks before a PR.
fabric-spec
Starts a persistent Pi Fabric spec supervisor that audits the main session against a feature design spec and steers only when a requirement lacks verified evidence. Use for strict, unblocked spec compliance while the main agent keeps full freedom to orchestrate.
fabric-advisor
Starts a persistent Pi Fabric peer advisor that reviews the main agent at decision points and surfaces only concrete, material advice. Use for ambient correctness review without another extension.
sublime-detection-engineering
Load when the prompt's first line is Sublime detection proposal . Turns one confirmed malicious email into a tested Sublime MQL detection rule proposal: read what made the message malicious, check what already catches it, author MQL, validate the syntax, prove it matches the source message, backtest it over history…
apex-review
Cross-cutting review of recent work — catches gaps between specialists. Use when asked to "review what we built", "check the work", "pre-launch review", or after completing a significant chunk of work.
gossipcat
Use when installing or setting up gossipcat multi-agent orchestration (parallel review, consensus, adaptive dispatch) in Claude Code or Cursor. Installs the gossipcat MCP server and hands off to gossipstatus() for all live rules.