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Agent skill

Cross Session Handoff

by Arch1eSUN in Arch1eSUN/Arcgentic

Read, write, snapshot, and lock .arcgentic/state.yaml across planner, dev, audit, and optional test sessions.

MITAuto-check passedAgent Workflows

Install Cross Session Handoff

skills CLI
$ npx skills add Arch1eSUN/Arcgentic --skill cross-session-handoff -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install Arch1eSUN/Arcgentic cross-session-handoff --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/Arch1eSUN/Arcgentic.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/cross-session-handoff .claude/skills/cross-session-handoff && rm -rf skills-src

Use ~/.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/

Facts

Skill name
cross-session-handoff
GitHub stars
286
Token cost
~240 tokens
SKILL.md length
48 words
Files
1
Skills in repo
19
Repo updated
First seen
Licence
MIT

At a glance

Read, write, snapshot, and lock .arcgentic/state.yaml across planner, dev, audit, and optional test sessions.

  • Tasks that involve Session handoff
  • SKILL.md covers Commands, Rules and See also
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Cross Session Handoff is an agent skill from Arch1eSUN/Arcgentic. Read, write, snapshot, and lock .arcgentic/state.yaml across planner, dev, audit, and optional test sessions.

Its SKILL.md is about 240 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Agent Workflows, covering Session handoff. The repository describes itself as: Mechanical plan/dev/self-audit/external-audit gates for AI coding agents, with a configurable role-routing topology engine, an MCP-UI live status panel, and native-tooling Claude… The licence is MIT.

When your agent uses it

  • Tasks that involve Session handoff

Example prompts

  • “/cross-session-handoff”

What it can do on your machine

Read from SKILL.md and the folder at commit 8539955. 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 bash).

    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

Cross Session Handoff loads about 240 tokens when it runs. Until then it costs about 33 tokens; SKILL.md has 48 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~33
When it runs · the whole SKILL.md, loaded when a task matches
~240

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 Arch1eSUN/Arcgentic at commit 8539955, republished under its MIT licence (© Arch1eSUN). 48 words, ~240 tokens.

Download SKILL.mdSave it as .claude/skills/cross-session-handoff/SKILL.md (or your agent's skills folder).
name
cross-session-handoff
description
Read, write, snapshot, and lock .arcgentic/state.yaml across planner, dev, audit, and optional test sessions.

cross-session-handoff

Manages .arcgentic/state.yaml as the shared state medium across multiple AI sessions.

Commands

bash
arcgentic cross-session-handoff read
arcgentic cross-session-handoff write --session-id dev-session --updates '{"current_phase":"dev"}'
arcgentic cross-session-handoff snapshot --session-id audit-session
arcgentic cross-session-handoff acquire-lock --session-id dev-session --ttl 600
arcgentic cross-session-handoff release-lock --session-id dev-session

Rules

  • Reads do not acquire a lock.
  • Writes acquire a TTL lock, write through a temp file, then rename atomically.
  • Snapshots go to .arcgentic/state-history/.
  • A session must not overwrite another non-expired lock.

See also

  • toolkit/src/arcgentic/skills_impl/cross_session_handoff.py

© Arch1eSUN, MIT. 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 skills/cross-session-handoff of Arch1eSUN/Arcgentic.

Open the folder on GitHubat commit 8539955

Compare with similar skills

Cross Session Handoff 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.

Cross Session Handoff compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cross Session Handoff this skillArch1eSUN/Arcgentic286—~240Automated safety check: PassMIT
Orca CLIstablyai/orca88k2 repos~593Automated safety check: PassMIT
Beads Task Memorygastownhall/beads28k—~1.2kAutomated safety check: PassMIT
Session History Searchslopus/happy24k—~3.1kAutomated safety check: PassMIT
Paseo Agent Handoffgetpaseo/paseo20k1 repos~606Automated safety check: PassCustom licence
Memori Long-Term MemoryMemoriLabs/Memori17k—~2kAutomated safety check: NotesCustom licence

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More from Arch1eSUN/Arcgentic

All 19 skills in this repo

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  • Verify Gates

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  • Arcgentic

    Arch1eSUN/Arcgentic

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  • Claude Code Session Broker

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Categories

Questions about Cross Session Handoff

What does Cross Session Handoff do?

Read, write, snapshot, and lock .arcgentic/state.yaml across planner, dev, audit, and optional test sessions. Cross Session Handoff is an agent skill from Arch1eSUN/Arcgentic.yaml across planner, dev, audit, and optional test sessions.

When should I use Cross Session Handoff?

Cross Session Handoff fits situations like: tasks that involve Session handoff.

How do I install Cross Session Handoff in Claude Code?

Run `npx skills add Arch1eSUN/Arcgentic --skill cross-session-handoff -a claude-code`. Or copy the skill folder (skills/cross-session-handoff in Arch1eSUN/Arcgentic) into .claude/skills/cross-session-handoff in your project. Claude Code loads it when a task matches its description.

How do I install Cross Session Handoff in Codex?

Run `npx skills add Arch1eSUN/Arcgentic --skill cross-session-handoff -a codex`. Or copy the skill folder (skills/cross-session-handoff in Arch1eSUN/Arcgentic) into .agents/skills/cross-session-handoff in your project. Codex loads it when a task matches its description.

Can I use Cross Session Handoff 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 Arch1eSUN/Arcgentic --skill cross-session-handoff -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cross-session-handoff, .gemini/skills/cross-session-handoff, .github/skills/cross-session-handoff and .opencode/skills/cross-session-handoff in your project.

What does Cross Session Handoff need to run?

SKILL.md names no scripts, command-line tools or credentials: Cross Session Handoff is instructions for the agent only.

Does Cross Session Handoff 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 Cross Session Handoff 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 Cross Session Handoff use?

Cross Session Handoff is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Cross Session Handoff use?

About 240 tokens (SKILL.md is roughly 960 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 Cross Session Handoff?

Skills that share tags, products or a category with Cross Session Handoff: Orca CLI (stablyai/orca, 88k stars), Beads Task Memory (gastownhall/beads, 28k stars), Session History Search (slopus/happy, 24k stars) and Paseo Agent Handoff (getpaseo/paseo, 20k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cross Session Handoff?

Arch1eSUN (a GitHub user) maintains it in Arch1eSUN/Arcgentic, which has 286 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 2, 2026.

Source: Arch1eSUN/Arcgentic on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.