lythoskill-deck SKILL.md skillA

lythoskill-deck from lythos-labs/lythoskill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add lythos-labs/lythoskill/lythoskill-deck@git:20261019.d2225a9

Pins git:20261019.d2225a9 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
lythos-labs/lythoskill
Path
packages/lythoskill-deck/skill/SKILL.md
Versions recorded
7
Latest version
git:20261019.d2225a9, committed Oct 19, 2026
First version recorded
Sep 8, 2026
Size
17,861 bytes
Repository stars
3
License
MIT

Declarative skill deck governance. `deck link` reconciles the working set to match skill-deck.toml — deny-by-default removes undeclared skills. DEFAULT patterns: PHASE SWITCH via separate deck files (deck link --deck phase<N>.toml), SEED bootstrap (minimal deck → agent self-expands via deck add + curator discovery). Always restores parent deck. Zero state pollution between phases. INNATE FIRST: after compaction, session reload, or skill refresh — read every innate skill's full SKILL.md before…

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

# lythoskill-deck: Declarative Skill Deck Governance
> What matters is not how many skills you have, but which ones the agent sees at the same time.

> **Invocation.** Body text uses the `deck <cmd>` shorthand. Run commands as
> `bunx @lythos/skill-deck@{{PACKAGE_VERSION}} <cmd>` (no install), or
> `lythoskill-deck <cmd>` if installed globally. The bare `deck` name is an
> in-repo alias convention in the lythoskill monorepo only — NOT a registered
> bin (the npm package registers `lythoskill-deck`). Same mapping: `arena` →
> `@lythos/skill-arena`, `curator` → `@lythos/skill-curator`, `cortex` →
> `@lythos/project-cortex`.
> Want the shorthand? Register it yourself — e.g.
> `alias deck='bunx @lythos/skill-deck@latest'` in your shell config.
> Optional, your machine, your choice.

## Core Model

`skill-deck.toml` declares desired state. `deck link` makes the working set (default `.claude/skills/`) match — creates symlinks for declared skills, removes everything else. Deny-by-default: undeclared skills do not exist in the agent's view.

```
Cold Pool (~/.agents/skill-repos/)  →  deck add  →  skill-deck.toml  →  deck link  →  .claude/skills/
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add lythos-labs/lythoskill/lythoskill-deck@sha256:63ceb8a08bad2d20

The line at the top of this page pins the label git:20261019.d2225a9, 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_y4vnt2iemp3gutno.svg)](https://markdownregistry.com/a/art_y4vnt2iemp3gutno)

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

Versions

The registry has recorded 7 versions of this file, between Sep 8, 2026 and Oct 19, 2026, about one every 7 days.

versioncommittedcommitsizeaudit
git:20261019.d2225a9 latest2026-10-19 d2225a9 17,861 BA view · diff
git:20261019.e94b2982026-10-19 e94b298 17,700 BA view · diff
{{PACKAGE_VERSION}}2026-09-09 c8ebcc7 17,038 BA view · diff
{{PACKAGE_VERSION}}2026-09-09 655309b 16,910 BA view · diff
{{PACKAGE_VERSION}}2026-09-09 bc2053c 16,646 BA view · diff
{{PACKAGE_VERSION}}2026-09-09 c3edaf7 16,650 BA view · diff
{{PACKAGE_VERSION}}2026-09-08 51b0254 16,358 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 (17861 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

lythos-labs/lythoskill · 3 stars · license MIT · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_y4vnt2iemp3gutno
GET https://markdownregistry.com/api/v1/resolve?ref=lythos-labs/lythoskill/lythoskill-deck
GET https://markdownregistry.com/api/v1/blob/63ceb8a08bad2d20adb4b443bc56e4a0122d6b71d6300d2a424f201bb5a3be21

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.

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Every file in lythos-labs/lythoskill

Other files named lythoskill-deck

lythoskill-deck SKILL.md skill
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v0.21.0 · audit A · 3 stars

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