handoff

handoff is a skill for Claude Code from ai-ecoverse/slicc. It costs 95 tokens per session (1,979 once invoked), scanned A, original, Apache-2.0.

An agent instruction for handling browser events that offer a handoff or an additional skill. A handoff asks for human approval before the agent acts, while an upskill request can install instructions from a GitHub repository.

In plain words
What is it for?
Use it to interpret these navigation events, present approval requests, and install only the requested repository path and branch when appropriate.
Why use it?
It prevents an agent from automatically accepting an external handoff or fetching content before approval.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter.

Good fit Use it to interpret these navigation events, present approval requests, and install only the requested repository path and branch when appropriate.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ai-ecoverse/slicc/handoff
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.

Any agent
npx skills add ai-ecoverse/slicc --skill handoff
Clone the repo
git clone --depth 1 https://github.com/ai-ecoverse/slicc

Made for: Claude Code.

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 handoff

README.md
[![agentmods](https://agentmods.dev/badge/skills/ai-ecoverse/slicc/handoff/github.svg)](https://agentmods.dev/skills/ai-ecoverse/slicc/handoff)
Your own site
<a href="https://agentmods.dev/skills/ai-ecoverse/slicc/handoff"><img src="https://agentmods.dev/badge/skills/ai-ecoverse/slicc/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.

agentmods 80×15 button for handoff

Your own site · 80×15
<a href="https://agentmods.dev/skills/ai-ecoverse/slicc/handoff"><img src="https://agentmods.dev/badge/skills/ai-ecoverse/slicc/handoff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 95 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,979 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00095 $0.01979
Opus 5.5 $0.00038 $0.00792
Sonnet 5.5 $0.00019 $0.00396
Haiku 4.5 $0.00010 $0.00198

Measured 1mo ago against content hash d1fa5a4488ad, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

handoff 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sSL <target>
packages/vfs-root/workspace/skills/handoff/SKILL.md · 110 lines

How it starts

The opening of the file, as written. The whole thing — 110 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Handoff

When the user opens a tab whose main-frame response advertises a SLICC handoff via an RFC 8288 Link header, SLICC parses the header and emits a navigate lick event to the cone. This skill tells you how to respond.

Event shape

You receive a message like:

[Navigate Event: https://example.com/somepath]
{
  "url": "https://example.com/somepath",
  "verb": "handoff" | "upskill",
  "target": "<absolute URL — github repo for upskill, page itself for handoff>",
  "instruction": "<free-form prose, only present for handoff>",
  "branch": "<git branch — upskill only, optional>",
  "path": "<sub-path under the repo — upskill only, optional>",
  "title": "<page title if available>"
}

branch and path are upskill-only Link params. Their canonical wire form is <https://github.com/owner/repo>; rel="…/upskill"; branch=main; path="skills/foo" — the repo URL is the bare href and the scope is expressed via Link parameters. Either may be absent; when both are present, install only the named sub-path on the named branch.

The verb is the rel that was matched on the response's Link header. SLICC only emits the navigate lick when the rel matched one of the recognised SLICC rels — anything else is ignored.

Recognised verbs

  • handoff (rel https://www.sliccy.ai/rel/handoff) — continue a task that another agent started. The target is the page URL itself; the instruction is the free-form prose to act on.
  • upskill (rel https://www.sliccy.ai/rel/upskill) — install a skill from a public GitHub repo. The target is the GitHub repo URL.

These are the only two custom rel URIs SLICC matches on the parsed Link header. Anything else is ignored at the parse layer and never reaches you.

What to do when you receive a navigate lick

Each navigate lick carries a Lick ID line plus verb-specific guidance. The two verbs resolve differently — upskill is agent-actionable, handoff stays human-gated.

upskill (agent-actionable)

Install or skip via the lick tools — do NOT render a dip and do NOT run bash: upskill yourself; lick_confirm performs the install.

Read the full file on GitHub · 110 lines

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. 1mo ago Changed d1fa5a4488ad
  2. 2mo ago First seen · 110 lines · 95 tokens per session scan A e96fc82a8061

Subscribe to this mod's changes

handoff is a skill published in the GitHub repository ai-ecoverse/slicc (37 stars, last pushed yesterday), licensed Apache-2.0. It adds 95 tokens to every session and 1,979 once invoked, about $0.0004 per session on Opus 5.5. 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 2026-09-05.

Related

handoff compared with skills from other repositories

handoff next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
handoffai-ecoverse/sliccSkill37yesterdayApache-2.0A95Claude Code
browsebrowserbase/stagehandSkill26kyesterdayMITA109Claude Code
opencli-autofixjackwener/OpenCLISkill31kyesterdayApache-2.0A61Claude Code
skill-bodycitrolabs/ego-liteSkill22kyesterdayMITA0Claude Code, Codex
moli-webfetchlexmount/moliSkill23kyesterdayApache-2.0A90Codex
pinchtabpinchtab/pinchtabSkill11k10d agoMITA94Codex
pinchtab-mcppinchtab/pinchtabSkill11k10d agoMITA52Claude Code, Codex