Session Handoff Document
thedotmack/claude-mem
Writes a HANDOFF.md capturing goal, state, files, failed attempts and next steps so a fresh agent session can continue exactly where this one stopped.
“Developer handoff package”
CC0-1.0Auto-check passed
Install Handoff To Claude Code
$ npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install asgeirtj/system_prompts_leaks handoff-to-claude-code --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .claude/skills && cp -r skills-src/Anthropic/claude-design/skills/handoff-to-claude-code .claude/skills/handoff-to-claude-code && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "handoff-to-claude-code" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/handoff-to-claude-code into .claude/skills/handoff-to-claude-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handoff-to-claude-code", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/handoff-to-claude-codeType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install asgeirtj/system_prompts_leaks handoff-to-claude-code --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .agents/skills && cp -r skills-src/Anthropic/claude-design/skills/handoff-to-claude-code .agents/skills/handoff-to-claude-code && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "handoff-to-claude-code" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/handoff-to-claude-code into .agents/skills/handoff-to-claude-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handoff-to-claude-code", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install asgeirtj/system_prompts_leaks handoff-to-claude-code --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/Anthropic/claude-design/skills/handoff-to-claude-code .cursor/skills/handoff-to-claude-code && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "handoff-to-claude-code" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/handoff-to-claude-code into .cursor/skills/handoff-to-claude-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handoff-to-claude-code", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/asgeirtj/system_prompts_leaks.git --path Anthropic/claude-design/skills/handoff-to-claude-code--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install asgeirtj/system_prompts_leaks handoff-to-claude-code --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/Anthropic/claude-design/skills/handoff-to-claude-code .gemini/skills/handoff-to-claude-code && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "handoff-to-claude-code" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/handoff-to-claude-code into .gemini/skills/handoff-to-claude-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handoff-to-claude-code", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install asgeirtj/system_prompts_leaks handoff-to-claude-codeInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .github/skills && cp -r skills-src/Anthropic/claude-design/skills/handoff-to-claude-code .github/skills/handoff-to-claude-code && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "handoff-to-claude-code" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/handoff-to-claude-code into .github/skills/handoff-to-claude-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handoff-to-claude-code", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install asgeirtj/system_prompts_leaks handoff-to-claude-code --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/asgeirtj/system_prompts_leaks.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/Anthropic/claude-design/skills/handoff-to-claude-code .opencode/skills/handoff-to-claude-code && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "handoff-to-claude-code" agent skill from https://github.com/asgeirtj/system_prompts_leaks/tree/main/Anthropic/claude-design/skills/handoff-to-claude-code into .opencode/skills/handoff-to-claude-code/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "handoff-to-claude-code", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
handoff-to-claude-code- GitHub stars
- 69k
- Token cost
- ~1k tokens
- SKILL.md length
- 221 words
- Files
- 1
- Skills in repo
- 128
- Repo updated
- First seen
- Licence
- CC0-1.0
At a glance
- Works in 2 steps: Create a handoff folder in the project… → Create a README.md in the handoff folder…
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
About this skill
Handoff To Claude Code is a skill in asgeirtj/system_prompts_leaks (69k stars). Its SKILL.md is about 1k tokens. Licence: CC0-1.0.
Workflow steps
2 steps, taken from the first numbered list in SKILL.md.
- Create a handoff folder in the project directory
- Create a README.md in the handoff folder with the following sections
What it can do on your machine
Read from SKILL.md and the folder at commit 60d44cc. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md (its code samples are markdown).
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Handoff To Claude Code loads about 1k tokens when it runs. Until then it costs about 12 tokens; SKILL.md has 221 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from asgeirtj/system_prompts_leaks at commit 60d44cc, republished under its CC0-1.0 licence (© asgeirtj). 221 words, ~1,023 tokens.
Download SKILL.mdSave it as
.claude/skills/handoff-to-claude-code/SKILL.md (or your agent's skills folder).- name
- handoff-to-claude-code
- description
- Developer handoff package
- user-invocable
- true
Handoff to Claude Code
Create a comprehensive handoff package so a developer using Claude Code can implement this design in a real codebase.
Steps
Create a handoff folder in the project directory:
mkdir -p <project-folder>/design_handoff_<feature-name>/Use a descriptive feature name derived from the design (e.g.,
design_handoff_onboarding_flow,design_handoff_settings_redesign).Create a README.md in the handoff folder with the following sections:
README.md Structure
# Handoff: <Feature Name>
## Overview
Brief description of what this design is for and what it accomplishes.
## About the Design Files
State clearly that the files in this bundle are **design references created in HTML** — prototypes showing intended look and behavior, not production code to copy directly. Explain that the task is to **recreate these HTML designs in the target codebase's existing environment** (React, Vue, SwiftUI, native, etc.) using its established patterns and libraries — or, if no environment exists yet, to choose the most appropriate framework for the project and implement the designs there.
## Fidelity
State clearly whether the mocks/prototypes created in this conversation are:
- **High-fidelity (hifi)**: Pixel-perfect mockups with final colors, typography, spacing, and interactions. The developer should recreate the UI pixel-perfectly using the codebase's existing libraries and patterns.
- **Low-fidelity (lofi)**: Wireframes or rough layouts showing structure and flow. The developer should use these as a guide for layout and functionality but apply the codebase's existing design system for styling.
## Screens / Views
For each screen or view in the design:
- **Name**: What this screen is called
- **Purpose**: What the user does here
- **Layout**: Detailed description of the layout (grid structure, flex directions, widths, heights, margins, padding)
- **Components**: List each UI component with:
- Position and size
- Colors (exact hex values if hifi)
- Typography (font family, size, weight, line-height, letter-spacing)
- Border radius, shadows, borders
- Hover/active/focus states
- Content/copy (exact text used)
## Interactions & Behavior
- Click handlers and navigation flows
- Animations and transitions (duration, easing, properties)
- Hover states
- Loading states
- Error states
- Form validation rules
- Responsive behavior (if applicable)
## State Management
- What state variables are needed
- State transitions and their triggers
- Any data fetching requirements
## Design Tokens
List all design values used:
- Colors (with hex values)
- Spacing scale
- Typography scale
- Border radius values
- Shadow values
## Assets
List any images, icons, or other assets used in the design and where they came from.
## Files
List the HTML/CSS/JS files in the project that contain the design, so the developer can reference them.Copy relevant design files into the handoff folder (the HTML prototypes, any component files, etc.)
Use the
present_fs_item_for_downloadtool with the handoff folder path so the user can download it as a zip.
Important Notes
- Be extremely precise about measurements, colors, and typography — the developer will rely on this documentation
- Make sure the README states up front that the bundled HTML files are design references, and that the user's described behavior should be understood as recreating those designs in the target app's existing environment (or the best choice of framework if none exists yet) — not shipping the HTML directly
- If the design uses Anthropic brand assets, mention that they should use the existing brand system in their codebase
- After creating, ask user if they want screenshots of the designs to be included. Don't include them by default.
- The README should be self-sufficient — a developer who wasn't in this conversation should be able to implement the design from the README alone
© asgeirtj, CC0-1.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in Anthropic/claude-design/skills/handoff-to-claude-code of asgeirtj/system_prompts_leaks.
Open the folder on GitHubat commit 60d44cc
Compare with similar skills
Handoff To Claude Code next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Handoff To Claude Code this skillasgeirtj/system_prompts_leaks | 69k | — | ~1k | Automated safety check: Pass | CC0-1.0 | |
| Session Handoff Documentthedotmack/claude-mem | 99k | — | ~1.4k | Automated safety check: Pass | Apache-2.0 | |
| Handoffnexu-io/open-design | 100k | — | ~547 | Automated safety check: Pass | Apache-2.0 | |
| Handoffalirezarezvani/claude-skills | 28k | — | ~2.5k | Automated safety check: Notes | MIT | |
| Handoffalirezarezvani/claude-skills | 28k | — | ~532 | Automated safety check: Pass | MIT | |
| Session Handoff Writercodewhale-hq/Codewhale | 41k | — | ~1.2k | Automated safety check: Pass | MIT |
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Questions about Handoff To Claude Code
How do I install Handoff To Claude Code in Claude Code?
Run `npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a claude-code`. Or copy the skill folder (Anthropic/claude-design/skills/handoff-to-claude-code in asgeirtj/system_prompts_leaks) into .claude/skills/handoff-to-claude-code in your project. Claude Code loads it when a task matches its description.
How do I install Handoff To Claude Code in Codex?
Run `npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a codex`. Or copy the skill folder (Anthropic/claude-design/skills/handoff-to-claude-code in asgeirtj/system_prompts_leaks) into .agents/skills/handoff-to-claude-code in your project. Codex loads it when a task matches its description.
Can I use Handoff To Claude Code in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add asgeirtj/system_prompts_leaks --skill handoff-to-claude-code -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/handoff-to-claude-code, .gemini/skills/handoff-to-claude-code, .github/skills/handoff-to-claude-code and .opencode/skills/handoff-to-claude-code in your project.
What does Handoff To Claude Code need to run?
SKILL.md names no scripts, command-line tools or credentials: Handoff To Claude Code is instructions for the agent only.
Does Handoff To Claude Code access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Handoff To Claude Code safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Handoff To Claude Code use?
Handoff To Claude Code is published under the CC0-1.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Handoff To Claude Code use?
About 1k tokens (SKILL.md is roughly 4.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Handoff To Claude Code?
Skills that share tags, products or a category with Handoff To Claude Code: Session Handoff Document (thedotmack/claude-mem, 99k stars), Handoff (nexu-io/open-design, 100k stars), Handoff (alirezarezvani/claude-skills, 28k stars) and Handoff (alirezarezvani/claude-skills, 28k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Handoff To Claude Code?
asgeirtj (a GitHub user) maintains it in asgeirtj/system_prompts_leaks, which has 69,280 GitHub stars. The repository holds 128 skills in this directory. The repository was last updated on October 10, 2026.
Source: asgeirtj/system_prompts_leaks on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.