cross-model-handoff

cross-model-handoff is a skill for Claude Code, Codex from ntaffzii/Skill-Agents. It costs 57 tokens per session (370 once invoked), scanned A, original, MIT.

A handoff note that records enough project context for a different AI assistant or coding agent to continue the work.

In plain words
What is it for?
It helps transfer ongoing coding tasks between assistants, including the goal, current state, tools used, verification, risks, and next steps.
Why use it?
It prevents important decisions, changed files, checks, and unknowns from being lost when work moves to another model or client.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Codex.

Good fit It helps transfer ongoing coding tasks between assistants, including the goal, current state, tools used, verification, risks, and next steps.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/ntaffzii/skill-agents/cross-model-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 ntaffzii/Skill-Agents --skill cross-model-handoff
Clone the repo
git clone --depth 1 https://github.com/ntaffzii/Skill-Agents

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 cross-model-handoff

README.md
[![agentmods](https://agentmods.dev/badge/skills/ntaffzii/skill-agents/cross-model-handoff/github.svg)](https://agentmods.dev/skills/ntaffzii/skill-agents/cross-model-handoff)
Your own site
<a href="https://agentmods.dev/skills/ntaffzii/skill-agents/cross-model-handoff"><img src="https://agentmods.dev/badge/skills/ntaffzii/skill-agents/cross-model-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 cross-model-handoff

Your own site · 80×15
<a href="https://agentmods.dev/skills/ntaffzii/skill-agents/cross-model-handoff"><img src="https://agentmods.dev/badge/skills/ntaffzii/skill-agents/cross-model-handoff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 370 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.
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 $0.00057 $0.00370
Opus 5 $0.00028 $0.00185
Sonnet 5 $0.00011 $0.00074
Haiku 4.5 $0.00006 $0.00037

Measured 9d ago against content hash ce8f1d938282, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

cross-model-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 9d 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.

Skill.md/cross-model-handoff/SKILL.md · 72 lines

What it actually says

Cross-Model Handoff

Use this skill when work may continue in a different model or client.

Core Rule

Write the handoff so a different agent can continue without access to this conversation's hidden context.

Workflow

  1. Capture objective

    • State the user's goal.
    • Include current scope and non-goals.
  2. Capture state

    • Files changed or inspected.
    • Decisions made.
    • Commands, tests, or checks run.
    • Tool capabilities used.
  3. Separate facts from assumptions

    • Verified facts
    • Assumptions
    • Unknowns
    • Blockers
  4. Translate tools

    • Say capabilities, not only exact tool names.
    • Example: "Used file search and read tools" instead of only "called search_in_files".
    • Include exact local names only as optional implementation detail.
  5. Give next actions

    • First next step
    • Validation step
    • Risk to watch

Output Format

# Cross-Model Handoff

## Objective

## Current State

## Decisions

## Files And Artifacts

## Tool Capabilities Used

## Verification

## Assumptions

## Next Steps

## Risks

Rules

  • Do not reference hidden conversation context as required knowledge.
  • Do not assume the next agent has the same tools.
  • Do not imply tests passed unless they actually ran.
  • Include exact paths, URLs, commands, or artifacts when they matter.
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. 9d ago First seen · 72 lines · 57 tokens per session scan A ce8f1d938282

Subscribe to this mod's changes

cross-model-handoff is a skill published in the GitHub repository ntaffzii/Skill-Agents (4 stars, last pushed yesterday), licensed MIT. It adds 57 tokens to every session and 370 once invoked, about $0.0003 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 2026-08-31.

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