spawn skillA
spawn is agent-read markdown (skill) from scdenney/open-science-skills: Spawn full Claude Code peer sessions in their own terminal panes and git worktrees — real sessions, not subagents — each on a directed task with a contract brief, monitored and merged back by the spawning lead. Detects the environment and takes the strongest path — herdr first, then tmux, then a native claude background agent. Use when work must outlive or run beside the current session, needs its own worktree or its own permission settings, should stay steerable by the user in a visible pane, o.
Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.
How to install
mdr add scdenney/open-science-skills/spawn@git:20260902.bf70f6dmdr add scdenney/open-science-skills/spawn@sha256:09ca135b32a637c3Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
[](https://markdownregistry.com/a/art_pbkr4zzwmbg4airy)
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Versions
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260902.bf70f6d latest | 2026-09-02 | bf70f6d | 19,907 B | A | view · diff |
| git:20260902.8289c42 | 2026-09-02 | 8289c42 | 17,290 B | A | view · diff |
| git:20260808.94ebb29 | 2026-08-08 | 94ebb29 | 13,882 B | A | view · diff |
| git:20260808.3abf478 | 2026-08-08 | 3abf478 | 13,872 B | A | view · diff |
| git:20260808.ea99a9b | 2026-08-08 | ea99a9b | 13,658 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (19907 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
scdenney/open-science-skills · 54 stars · license NOASSERTION · pushed 2026-09-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pbkr4zzwmbg4airy GET https://markdownregistry.com/api/v1/resolve?ref=scdenney/open-science-skills/spawn GET https://markdownregistry.com/api/v1/blob/09ca135b32a637c30afb4951ec92e63f6a819a5d161f241f2c797a8bfd42f92f