Independent product · stable v2.1.1

Give agents a reliable way to do the work.

YYLO Skills are independently versioned, reusable procedures for operating CLI, Ledger and Benchmark. One canonical package supports Claude Code, Codex and Pi without duplicating runtime ownership.

Install Skills Review source

Explicit install paths

Choose the installer that fits your setup.

The open Skills CLI can install the repository or one slug. YYLO’s complete-set installer: Stable 0.2.11. Match the installer to the version you deliberately installed; a source candidate is not verified published behavior.

npx skills add yylo-dev/yylo-skills
npx skills add yylo-dev/yylo-skills --skill wiki-yylo

yy skills install
yy skills install --version 2.1.1
yy skills status

Standalone Ledger has its own installer selection and compatibility rules. For an individual Record skill, use the open Skills CLI command above; for the complete set, use a compatible YYLO CLI.

Installation and update are explicit network operations; ordinary status and product commands remain offline. The open Skills CLI command follows the repository default branch; use a version-pinned package installer when reproducibility matters. Published Skills 2.1.1; source 2.1.1. Registry checked 2026-10-07.

Canonical source catalog

8 goals, grouped by intent.

Choose a goal to understand when the skill helps. The complete instruction remains in the revision-pinned source repository. The published eight-skill set includes benchmark-yylo. Version 2.1.1 adds project/task checklist guidance and examples to that skill, not a separate checklist package. See the versioned Skills changelog.

Ledger Records

Skills for working with YYLO Ledger as the source of truth.

ledger-tasks-yylo

Retrieve any YYLO Ledger Record by ID, discover PDRs and artifacts, and manage tasks and dependencies. Use for unknown record types, universal get/search, task operations, and source-of-truth boundaries.

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wiki-yylo

Use YYLO Ledger wiki Records as durable project knowledge. Search before creating, classify information correctly, and make revision-safe Markdown updates without editing Ledger storage directly.

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workflow-yylo

Create and maintain validated YYLO Ledger workflow Records while keeping storage, execution, and run evidence as separate explicit boundaries.

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artifact-yylo

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

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Planning

Skills for understanding projects and planning Ledger work.

understand-project-yylo

Inspect the current product architecture, dependencies, and validation loops before planning or implementing a requested change.

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plan-ledger-tasks-yylo

Create a concise Product Development Requirement and one or more implementation-sized YYLO Ledger tasks when the user explicitly asks to plan or register work.

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Execution

Skills for bounded task-driven delivery and trusted-host agent-system experiments.

benchmark-yylo

Prepare reviewed cases and frozen checklists, compare models and harnesses, and independently evaluate retained outputs with YYLO Benchmark's thin trusted-host runner.

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ralph-loop-yylo

Execute exactly one explicitly assigned YYLO Ledger task through the Ralph loop to a validated queued commit. Use only when the user explicitly requests ralph-loop-yylo.

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Safety boundary

Review skills like code.

A skill can steer an agent and may reference executable procedures. Review the canonical version before installation. YYLO preserves customized and unrelated local skills unless an explicit, bounded replacement is authorized.

Browse on skills.sh →