slicc: Skill for Claude Code

.agents/skills/slicc-handoff/SKILL.md

slicc-handoff is a skill for Claude Code, Codex from ai-ecoverse/slicc. It costs 94 tokens per session (878 once invoked), scanned A, original, Apache-2.0.

A skill for sending an instruction or GitHub skill URL to SLICC, a browser-based coding agent. It opens a handoff link and tells the user to approve it in SLICC.

In plain words
What is it for?
Use it when a user asks to move work to SLICC, test something in its browser, or install a skill there.
Why use it?
It provides a defined way to continue work in another browser agent or ask that agent to install a skill.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is ai-ecoverse/slicc's own configuration. It tells Claude Code and Codex how to work on slicc itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything slicc configures →

Reuse

Borrowing it

Nothing to install: this file belongs to ai-ecoverse/slicc. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/ai-ecoverse/slicc/main/.agents/skills/slicc-handoff/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/ai-ecoverse/slicc

Made for: Claude Code, Codex.

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 slicc-handoff

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/ai-ecoverse/slicc/slicc-handoff"><img src="https://agentmods.dev/badge/skills/ai-ecoverse/slicc/slicc-handoff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 94 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 878 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to medium

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 →

  • medium Agent Snooping · line 31
    Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.
    Fix: Remove all code or instructions that list or read other skills' files or directories. Skills should operate independently; cross-skill access is a privilege escalation.
  • medium Excessive Agency · line 31
    Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.
    Fix: Add human-in-the-loop confirmation for destructive, irreversible, or high-impact operations. Never auto-execute commands that modify files, send data, or alter system state.
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 $0.00094 $0.00878
Opus 5 $0.00047 $0.00439
Sonnet 5 $0.00019 $0.00176
Haiku 4.5 $0.00009 $0.00088

Measured 4d ago against content hash b587ec36de43, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

slicc-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 4d 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/skills/slicc-handoff/SKILL.md · 48 lines

How it starts

The opening of the file, as written. The whole thing — 48 lines — stays where its author put it; the contents beside it link to each section on GitHub.

slicc-handoff

Use this skill when the user says things like handoff to slicc, move this to slicc, move to the browser, test in the browser, handoff to browser, install this skill in slicc, upskill slicc with this repo, add this skill to slicc, or otherwise asks you to continue the work in the SLICC browser agent or install a skill into it.

What to do

  1. Compose a single-line, action-oriented instruction.
  2. Pick a verb prefix:
    • handoff:<instruction> — continue the task in SLICC.
    • upskill:<github-url> — ask SLICC to install a skill from a GitHub repo.
  3. Run the script with --open to open the handoff URL. Show one of:
    • .agents/skills/slicc-handoff/scripts/slicc-handoff --open "handoff:<instruction>"
    • .agents/skills/slicc-handoff/scripts/slicc-handoff --open "upskill:<github-url>"
  4. Tell the user SLICC will show an approval prompt in the Chat tab.

If the user runs a non-default SLICC instance on another port, prefix the call with SLICC_PORT=5720 (or whatever port they chose) so the localhost POST hits the right instance.

How it works

The script builds a URL like https://www.sliccy.ai/handoff?handoff=<urlencoded> (or ?upskill=<urlencoded-github-url>). Two delivery paths fire in parallel:

  • Localhost POST to http://localhost:${SLICC_PORT ?? 5710}/api/handoff with the structured payload { verb, target, instruction?, url, title }verb is handoff or upskill, target is the github URL for upskill or the handoff URL for handoff, and instruction carries the prose for handoff. The local server (node-server or the Sliccstart swift-server) rebroadcasts it as a navigate lick to the connected webapp. Profile-independent: reaches SLICC even when the user's default browser is a different Chrome profile than the one SLICC controls.
  • --open opens the URL in the local browser. If that browser profile has the SLICC extension installed, chrome.webRequest parses the response's RFC 8288 Link header (rel https://www.sliccy.ai/rel/handoff or https://www.sliccy.ai/rel/upskill) and emits the navigate lick when one of those rels is present.

Read the full file on GitHub · 48 lines

Files

What ships with it

1 file 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.

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. 4d ago First seen · 48 lines · 94 tokens per session scan A b587ec36de43

Subscribe to this mod's changes

slicc-handoff is a skill published in the GitHub repository ai-ecoverse/slicc (30 stars, last pushed today), licensed Apache-2.0. It adds 94 tokens to every session and 878 once invoked, about $0.0005 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 2026-09-05.

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