Agent skill

Artifact Yylo

by sickn33 in sickn33/agentic-awesome-skills

Capture and retrieve durable YYLO Ledger artifact Records with intentional profiles, payload modes, provenance, retention, and secret-safe immutable evidence.

MITAuto-check passed

Install Artifact Yylo

skills CLI
$ npx skills add sickn33/agentic-awesome-skills --skill artifact-yylo -a claude-code

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

GitHub CLI
$ gh skill install sickn33/agentic-awesome-skills artifact-yylo --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/sickn33/agentic-awesome-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/artifact-yylo .claude/skills/artifact-yylo && 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
artifact-yylo
GitHub stars
47k
Used in
2 other repos
Token cost
~1.4k tokens
SKILL.md length
550 words
Files
1
Skills in repo
1,497
Repo updated
First seen
Licence
MIT

At a glance

Capture and retrieve durable YYLO Ledger artifact Records with intentional profiles, payload modes, provenance, retention, and secret-safe immutable evidence.

  • SKILL.md covers Classify before capture, Create explicitly, Operational-document boundary and Find and verify, plus 3 more sections
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Artifact Yylo is an agent skill from sickn33/agentic-awesome-skills. Capture and retrieve durable YYLO Ledger artifact Records with intentional profiles, payload modes, provenance, retention, and secret-safe immutable evidence.

Its SKILL.md is about 1.4k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: Requires the yy CLI with the artifact record group installed. Captures immutable, secret-safe evidence with provenance and retention; never publishes or…

The repository describes itself as: AAS Core is the local, agent-first control plane for complete catalog discovery, agent-owned selection, stack validation, and planning, backed by 2,400+ agentic skills. Includes… The licence is MIT.

Example prompts

  • “/artifact-yylo”

Requirements

  • Python 3
  • Compatibility (from SKILL.md): Requires the `yy` CLI with the `artifact` record group installed. Captures immutable, secret-safe evidence with provenance and retention; never publishes or deploys.

What it can do on your machine

Read from SKILL.md and the folder at commit b84d35a. 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

    Links to these hosts (documentation or services it may open):

    • github.com

    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.

  • Compatibility

    Requires the `yy` CLI with the `artifact` record group installed. Captures immutable, secret-safe evidence with provenance and retention; never publishes or deploys.

    From compatibility in the SKILL.md frontmatter.

Context cost

Artifact Yylo loads about 1.4k tokens when it runs. Until then it costs about 43 tokens; SKILL.md has 550 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~43
When it runs · the whole SKILL.md, loaded when a task matches
~1.4k

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 sickn33/agentic-awesome-skills at commit b84d35a, republished under its MIT licence (© sickn33). 550 words, ~1,370 tokens.

Download SKILL.mdSave it as .claude/skills/artifact-yylo/SKILL.md (or your agent's skills folder).
name
artifact-yylo
description
Capture and retrieve durable YYLO Ledger artifact Records with intentional profiles, payload modes, provenance, retention, and secret-safe immutable evidence.
compatibility
Requires the `yy` CLI with the `artifact` record group installed. Captures immutable, secret-safe evidence with provenance and retention; never publishes or deploys.
category
project-management
risk
safe
source
https://github.com/yylo-dev/yylo-skills
source_repo
yylo-dev/yylo-skills
source_type
community
date_added
2026-09-19
license
MIT
license_source
https://github.com/yylo-dev/yylo-skills/blob/main/LICENSE
argument-hint
[artifact or evidence to capture/find/inspect]
enable-shell-directives
true

Use YYLO artifact Records

Treat Ledger as the source of truth for artifact identity and metadata. Use yy ledger in a YYLO controller or yylo-ledger standalone. Inspect COMMAND artifact --help; if unavailable, do not create store files manually. A Ledger Artifact Record is durable evidence, not an npm/Python release artifact and not an implicit request to publish or deploy.

Classify before capture

Choose the profile matching the evidence:

  • stdout: bounded process output;
  • model-output: an agent/model response;
  • report: a generated human- or machine-readable result;
  • receipt: evidence binding an operation and its inputs/outcome.

Choose payload mode deliberately:

  • inline: small immutable bytes embedded in the Record;
  • local: immutable content-addressed bytes in Ledger storage;
  • external: immutable external bytes with URI, digest, and size;
  • link: URI reference without an immutable-byte guarantee.

Prefer immutable evidence when later verification depends on exact bytes. A link must never be presented as content-addressed proof.

Create explicitly

Use file/stdin transport and provide the media type:

bash
yy ledger artifact create --title "Focused test report" --profile report \
  --mode local --media-type application/json --file report.json

For external immutable content, provide the supported URI, SHA-256 digest, and size shown by installed help. Never embed URI credentials. Ledger rejects unsafe schemes, traversal, size/digest mismatches, oversized capture, and known secret patterns.

Attach only supported, non-secret provenance such as actor, agent, model, session, run, invocation, task, or workflow identity. Task/workflow provenance uses immutable Record IDs. Select temporary, standard, or permanent retention deliberately; retention metadata does not itself authorize deletion.

Operational-document boundary

Store new PDRs, architecture and migration contracts, plans, reports, receipts, and execution evidence as Artifact Records. Draft through a fresh external file, capture it with an intentional profile and immutable payload mode, read it back, and verify its ID, digest, size, provenance, retention, and history before removing the draft. Use the report profile for human-readable PDRs/contracts unless installed help provides a more specific approved profile.

Product docs/ is only for documentation shipped as part of the product. Never put operational evidence there to manufacture a task product diff. Preserve legacy .juno_task/specs files, but do not create new ones as a fallback. If the installed artifact API is unavailable, stop with the external draft intact and request a Ledger upgrade; do not put it in task bodies, responses, product docs, or manually managed controller paths.

Show full SKILL.md (189 more words)Show less

Find and verify

bash
yy ledger artifact search --profile report --projection summary --limit 20 -f json
yy ledger artifact get RECORD_ID -f json
yy ledger artifact history RECORD_ID -f ndjson

Use bounded metadata/summary projections before requesting payload details. Verify profile, mode, media type, digest, size, provenance, retention, revision, and immutable ID before relying on evidence.

Artifact payloads are immutable evidence. Represent replacement with explicit predecessor/successor relationships and the installed revision-safe update contract; do not overwrite bytes or edit content objects. Archive is a lifecycle transition, not deletion. Release, publication, external upload, retention execution, and production mutation always require separate authority.

Complete request

$ARGUMENTS

When to Use

  • You need to capture or retrieve durable YYLO Ledger artifact Records (stdout, model-output, report, receipt) with provenance, retention, and immutable payloads.
  • New operational PDRs, contracts, plans, reports, and receipts belong here - not in product docs, task bodies, or new .juno_task/specs files.

Limitations

  • Payloads are immutable: represent replacement with predecessor/successor relations, never by overwriting bytes. Archive is a lifecycle transition, not deletion.
  • Secret-safe only: never embed URI credentials; Ledger rejects unsafe schemes, traversal, size/digest mismatches, and known secret patterns.
  • Retention metadata never authorizes deletion; release, publication, upload, and production mutation always need separate authority.
Example
bash
yy ledger artifact search --profile report --projection summary --limit 20 -f json
yy ledger artifact get RECORD_ID -f json

Adapted from yylo-dev/yylo-skills (MIT) - v2.0.1; frontmatter, When to Use/Limitations, and safety boundaries added for upstream compliance.

© sickn33, 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/artifact-yylo of sickn33/agentic-awesome-skills.

Open the folder on GitHubat commit b84d35a

Used in 2 other repositories

We found 6 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 2 other GitHub owners. This page covers the copy in sickn33/agentic-awesome-skills, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Artifact Yylo 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.

Artifact Yylo compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Artifact Yylo this skillsickn33/agentic-awesome-skills47k2 repos~1.4kAutomated safety check: PassMIT
Recordingcodewhale-hq/Codewhale41k—~540Automated safety check: PassMIT
YYLO Ledger Task Boardiflytek/skillhub5.2k—~2.6kAutomated safety check: PassMIT
Daytona Recording ArtifactsDevin-AXIS/iPolloWork6.8k—~2.2kAutomated safety check: PassCustom licence
Artifacts Buildernexu-io/open-design100k—~347Automated safety check: PassApache-2.0
Architecture Decision Recordsaffaan-m/ECC277k4 repos~1.8kAutomated safety check: PassMIT

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Questions about Artifact Yylo

What does Artifact Yylo do?

Capture and retrieve durable YYLO Ledger artifact Records with intentional profiles, payload modes, provenance, retention, and secret-safe immutable evidence. Artifact Yylo is an agent skill from sickn33/agentic-awesome-skills. Capture and retrieve durable YYLO Ledger artifact Records with intentional profiles, payload modes, provenance, retention, and secret-safe immutable evidence.

How do I install Artifact Yylo in Claude Code?

Run `npx skills add sickn33/agentic-awesome-skills --skill artifact-yylo -a claude-code`. Or copy the skill folder (skills/artifact-yylo in sickn33/agentic-awesome-skills) into .claude/skills/artifact-yylo in your project. Claude Code loads it when a task matches its description.

How do I install Artifact Yylo in Codex?

Run `npx skills add sickn33/agentic-awesome-skills --skill artifact-yylo -a codex`. Or copy the skill folder (skills/artifact-yylo in sickn33/agentic-awesome-skills) into .agents/skills/artifact-yylo in your project. Codex loads it when a task matches its description.

Can I use Artifact Yylo 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 sickn33/agentic-awesome-skills --skill artifact-yylo -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/artifact-yylo, .gemini/skills/artifact-yylo, .github/skills/artifact-yylo and .opencode/skills/artifact-yylo in your project.

What does Artifact Yylo need to run?

SKILL.md names no scripts, command-line tools or credentials: Artifact Yylo is instructions for the agent only. Our summary lists: Python 3. Compatibility (from SKILL.md): Requires the `yy` CLI with the `artifact` record group installed. Captures immutable, secret-safe evidence with provenance and retention; never publishes or deploys..

Does Artifact Yylo access the network?

SKILL.md names 1 domain. As links in the text: github.com. This is read from the text; nothing was executed.

Is Artifact Yylo 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 Artifact Yylo use?

Artifact Yylo is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Artifact Yylo use?

About 1.4k tokens (SKILL.md is roughly 5.5k 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 Artifact Yylo?

Skills that share tags, products or a category with Artifact Yylo: Recording (codewhale-hq/Codewhale, 41k stars), YYLO Ledger Task Board (iflytek/skillhub, 5.2k stars), Daytona Recording Artifacts (Devin-AXIS/iPolloWork, 6.8k stars) and Artifacts Builder (nexu-io/open-design, 100k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Artifact Yylo?

sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,405 GitHub stars. The repository holds 1,497 skills in this directory. The repository was last updated on October 9, 2026.

Source: sickn33/agentic-awesome-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.