spawn-session SKILL.md skillA

spawn-session from shimo4228/claude-harness is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add shimo4228/claude-harness/spawn-session@git:20261010.b5821aa

Pins git:20261010.b5821aa in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
shimo4228/claude-harness
Path
skills/spawn-session/SKILL.md
Versions recorded
8
Latest version
git:20261010.b5821aa, committed Oct 10, 2026
First version recorded
Aug 24, 2026
Size
12,189 bytes
Repository stars
3
License
MIT

Start a new detached Claude Code Remote Control session inside Herdr, so it shows in the Claude mobile app. Use when asked to start a session for a project (新しいセッション立てて).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# spawn-session

生きている任意のセッションから、**名前付き・detached な新しい Claude Code Remote Control セッション**を Herdr 内に起動する。新セッションは自分の RC を登録するので Claude モバイルアプリのセッション一覧に出る。iPhone から Remote Control 越しに操作している最中に、Mac に触れず別プロジェクトのセッションを増やすのが主用途。Herdr の艦隊ビュー(サイドバー・agent status)にもそのまま並び、skill: `agent-send` で指示を送れる。session や script(task-triage の dispatch、launchd の tick)から起こす経路でもある。

## When to use

- 新しいセッションが欲しい(多くは別プロジェクト用)でモバイルアプリ一覧に出したい
- トリガー例: 「新しいセッション立てて」「AAP のセッション開いて」「spawn a session for X」/ `/spawn-session [project]`

## When NOT to use

- 既存の会話を続けたい → `claude --continue` / `--resume`
- 現在のセッションの文脈を消したいだけ → `/clear`
- 現在のセッションの model / effort 切替 → `/model`, `--effort`
- **よく使うフォルダで phone から 1 本起こしたいだけで、Herdr pane に置かなくてよい** → Desktop アプリの Settings > Claude Code の「スマートフォンと claude.ai からここでセッションを開始できるようにする」をオンにすると、アプリが開いている間、Claude アプリの Code タブに Mac の device card が出る。選べるのは登録フォルダ(Claude Code でよく使う 6 個まで + ピン留め・追加したもの)で、任意の directory はたどれない(2026-10-10、Desktop の設定画面で確認)。その session は Desktop アプリの下で動き、Herdr pane には並ばず agent-send も届かない。Desktop が公開中のフォルダでは CLI の `claude remote-control` は起動を拒む
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add shimo4228/claude-harness/spawn-session@sha256:ce6125d1d67cff97

The line at the top of this page pins the label git:20261010.b5821aa, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_xl7hxd6yt7ncx6vy.svg)](https://markdownregistry.com/a/art_xl7hxd6yt7ncx6vy)

3 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 8 versions of this file, between Aug 24, 2026 and Oct 10, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20261010.b5821aa latest2026-10-10 b5821aa 12,189 BA view · diff
git:20261008.b63e5f12026-10-08 b63e5f1 15,016 BA view · diff
git:20261007.d62d71a2026-10-07 d62d71a 15,467 BA view · diff
git:20260925.a3765d22026-09-25 a3765d2 15,566 BA view · diff
git:20260923.e444d082026-09-23 e444d08 15,623 BA view · diff
git:20260912.5f273ee2026-09-12 5f273ee 13,997 BA view · diff
git:20260902.9b5c2402026-09-02 9b5c240 13,582 BA view · diff
git:20260824.8c939552026-08-24 8c93955 13,864 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12189 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

shimo4228/claude-harness · 3 stars · license MIT · pushed 2026-10-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xl7hxd6yt7ncx6vy
GET https://markdownregistry.com/api/v1/resolve?ref=shimo4228/claude-harness/spawn-session
GET https://markdownregistry.com/api/v1/blob/ce6125d1d67cff979e824e91af7724731a8af5ef02c32f34e3a9e4061bf96c72

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

More from shimo4228/claude-harness

widen-depth SKILL.md skill
shimo4228/claude-harness · docs/evals/SKILL.md · 依頼を大きな版でなく深い版に書き直す。一流がやること・生の素材・方法と道具・外部の判定を引き出す。
git:20261018.9c2cf31 · audit A · 3 stars
llms-full.txt llms.txt file
shimo4228/claude-harness · llms-full.txt
git:20261010.7fd1204 · audit A · 3 stars
llms.txt llms.txt file
shimo4228/claude-harness · llms.txt
git:20261010.0028cd9 · audit A · 3 stars
adr-writer SKILL.md skill
shimo4228/claude-harness · skills/adr-writer/SKILL.md · Record a design decision as an ADR in the repo's docs/adr/, or decide whether it clears the filing bar or belongs in a…
git:20261010.b5821aa · audit A · 3 stars
agent-send SKILL.md skill
shimo4228/claude-harness · skills/agent-send/SKILL.md · Send a prompt to an agent running in a Herdr pane and confirm it landed, or wait until its work is done. Use when…
git:20261010.b5821aa · audit A · 3 stars
agent-stocktake SKILL.md skill
shimo4228/claude-harness · skills/agent-stocktake/SKILL.md · Audit the ~/.claude/agents definitions and give each a verdict.
v1.0 · audit A · 3 stars
author-calibrated-eval SKILL.md skill
shimo4228/claude-harness · skills/author-calibrated-eval/SKILL.md · Polish LLM-written prose with the author's own reading as ground truth.
git:20261008.b63e5f1 · audit A · 3 stars
authorship-strategy SKILL.md skill
shimo4228/claude-harness · skills/authorship-strategy/SKILL.md · Evaluate a concrete proposal against the author's authorship strategy, or apply and explain the existing judgment…
git:20261008.b63e5f1 · audit A · 3 stars
collect-context SKILL.md skill
shimo4228/claude-harness · skills/collect-context/SKILL.md · Collect sourced material into an evidence dossier before writing an article or essay. Use when gathering material for a…
git:20261008.b63e5f1 · audit A · 3 stars
context-sync SKILL.md skill
shimo4228/claude-harness · skills/context-sync/SKILL.md · Audit a repo's context documents (CLAUDE.md, ADRs, README, graph.jsonld) for role overlap and staleness against the…
git:20261011.dd38b78 · audit A · 3 stars
generation-audit SKILL.md skill
shimo4228/claude-harness · skills/generation-audit/SKILL.md · Audit the harness when a new Claude model takes a role (judge, build or everyday).
v2.0 · audit A · 3 stars
harness-boundary SKILL.md skill
shimo4228/claude-harness · skills/harness-boundary/SKILL.md · Design lens: which layer a harness mechanism belongs in, and whether it outlives the next model or runtime.
git:20261008.b63e5f1 · audit A · 3 stars

Every file in shimo4228/claude-harness

Other files named spawn-session

spawn-session SKILL.md skill
gtapps/claude-code-hermit · plugins/hermitd/skills/spawn-session/SKILL.md · Spawns a background Claude Code helper in the project or another folder with the configured Remote Control and the…
git:20261016.2e8f3e2 · audit A · 82 stars
spawn-session SKILL.md skill
gtapps/hermitd · plugins/hermitd/skills/spawn-session/SKILL.md · Spawns a background Claude Code helper in the project or another folder with the configured Remote Control and the…
git:20261010.7cd56bd · audit A · 82 stars

Browse by kind, by grade A, or by owner.