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Agent skill

Understand Project Yylo

by sickn33 in sickn33/agentic-awesome-skills

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

MITAuto-check passed

Install Understand Project Yylo

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

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

GitHub CLI
$ gh skill install sickn33/agentic-awesome-skills understand-project-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/understand-project-yylo .claude/skills/understand-project-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
understand-project-yylo
GitHub stars
47k
Used in
3 other repos
Token cost
~832 tokens
SKILL.md length
332 words
Files
1
Skills in repo
1,497
Repo updated
First seen
Licence
MIT

At a glance

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

  • Works in 6 steps: Read AGENTS.md/CLAUDE.md, repository… → Read related Kanban tasks and durable… → Trace only the dependencies and runtime… → …
  • SKILL.md covers Invocation contract, When to Use and Limitations
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Understand Project Yylo is an agent skill from sickn33/agentic-awesome-skills. Inspect the current product architecture, dependencies, and validation loops before planning or implementing a requested change.

Its SKILL.md is about 830 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 read access to the product worktree and the yy CLI for task/spec reads through the canonical controller. Read-only inspection; no mutations.

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

  • “/understand-project-yylo”

Requirements

  • Compatibility (from SKILL.md): Requires read access to the product worktree and the `yy` CLI for task/spec reads through the canonical controller. Read-only inspection; no mutations.

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Read AGENTS.md/CLAUDE.md, repository status, relevant source, tests, and existing product documentation in the integration or assigned…
  2. Read related Kanban tasks and durable specs through the canonical metadata controller. Do not assume .juno_task/plan.md exists and do not…
  3. Trace only the dependencies and runtime paths needed for the requested goal. Use bounded parallel investigation when independent questions…
  4. Report current behavior, sources of truth, affected components, risks, unknowns, and the smallest useful validation loop.
  5. If the user requested planning, hand the findings to plan-ledger-tasks-yylo. If implementation was requested, work only in the task…
  6. Write a durable operational spec only when requested or materially useful. Draft it externally, preflight the installed yy ledger artifact…

What it can do on your machine

Read from SKILL.md and the folder at commit 1c7bdea. 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 read access to the product worktree and the `yy` CLI for task/spec reads through the canonical controller. Read-only inspection; no mutations.

    From compatibility in the SKILL.md frontmatter.

Context cost

Understand Project Yylo loads about 832 tokens when it runs. Until then it costs about 38 tokens; SKILL.md has 332 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~38
When it runs · the whole SKILL.md, loaded when a task matches
~832

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 1c7bdea, republished under its MIT licence (© sickn33). 332 words, ~832 tokens.

Download SKILL.mdSave it as .claude/skills/understand-project-yylo/SKILL.md (or your agent's skills folder).
name
understand-project-yylo
description
Inspect the current product architecture, dependencies, and validation loops before planning or implementing a requested change.
compatibility
Requires read access to the product worktree and the `yy` CLI for task/spec reads through the canonical controller. Read-only inspection; no mutations.
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
[Main Task] [Constraints] [Ultimate Goal]
enable-shell-directives
true

Understand the project

  1. Read AGENTS.md/CLAUDE.md, repository status, relevant source, tests, and existing product documentation in the integration or assigned feature worktree.
  2. Read related Kanban tasks and durable specs through the canonical metadata controller. Do not assume .juno_task/plan.md exists and do not materialize controller-private metadata in a product worktree.
  3. Trace only the dependencies and runtime paths needed for the requested goal. Use bounded parallel investigation when independent questions justify it.
  4. Report current behavior, sources of truth, affected components, risks, unknowns, and the smallest useful validation loop.
  5. If the user requested planning, hand the findings to plan-ledger-tasks-yylo. If implementation was requested, work only in the task worktree returned by yy task start TASK_ID.
  6. Write a durable operational spec only when requested or materially useful. Draft it externally, preflight the installed yy ledger artifact API, capture it as an immutable report Artifact Record with provenance/retention, and verify retrieval, digest, and history. If that API is unavailable, stop with the external draft intact; never fall back to product docs/, task bodies/responses, new .juno_task/specs, or direct controller-store edits. Product docs/ remains reserved for documentation shipped with the product. Do not update root instructions with transient status.

Invocation contract

The structured views below intentionally alias parts of the complete request; they are not additional user arguments.

Main task

$1

Constraints and context

$2

Complete raw request

$ARGUMENTS

When to Use

  • Before planning or implementing a requested change, when you need current architecture, dependencies, and validation loops.
  • To hand grounded findings to plan-ledger-tasks-yylo (planning) or a task worktree (implementation).

Limitations

  • Read-only: reports current behavior, sources of truth, affected components, risks, unknowns, and the smallest validation loop - does not implement.
  • Bounded investigation only; do not materialize controller-private metadata in a product worktree.
  • Durable specs are captured as immutable Artifact Records only when the installed yy ledger artifact API supports it; otherwise stop with the external draft intact.
Example
bash
yy ledger search --status todo --limit 5
yy ledger get TASK_ID

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/understand-project-yylo of sickn33/agentic-awesome-skills.

Open the folder on GitHubat commit 1c7bdea

Used in 3 other repositories

We found 7 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 3 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

Understand Project 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.

Understand Project Yylo compared with similar skills
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Autonomous Loopsaffaan-m/ECC277k4 repos~5.8kAutomated safety check: PassMIT
Loopasgeirtj/system_prompts_leaks69k—~2.2kAutomated safety check: WarnCC0-1.0
Continuous Agent Loopaffaan-m/ECC277k5 repos~298Automated safety check: PassMIT
Loop Design Checkaffaan-m/ECC277k1 repos~2.9kAutomated safety check: PassMIT

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Questions about Understand Project Yylo

What does Understand Project Yylo do?

Inspect the current product architecture, dependencies, and validation loops before planning or implementing a requested change. Understand Project Yylo is an agent skill from sickn33/agentic-awesome-skills. Inspect the current product architecture, dependencies, and validation loops before planning or implementing a requested change.

How do I install Understand Project Yylo in Claude Code?

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

How do I install Understand Project Yylo in Codex?

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

Can I use Understand Project 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 understand-project-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/understand-project-yylo, .gemini/skills/understand-project-yylo, .github/skills/understand-project-yylo and .opencode/skills/understand-project-yylo in your project.

What does Understand Project Yylo need to run?

SKILL.md names no scripts, command-line tools or credentials: Understand Project Yylo is instructions for the agent only. Compatibility (from SKILL.md): Requires read access to the product worktree and the `yy` CLI for task/spec reads through the canonical controller. Read-only inspection; no mutations..

Does Understand Project 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 Understand Project 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 Understand Project Yylo use?

Understand Project 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 Understand Project Yylo use?

About 832 tokens (SKILL.md is roughly 3.3k 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 Understand Project Yylo?

Skills that share tags, products or a category with Understand Project Yylo: Loop (alirezarezvani/claude-skills, 28k stars), Autonomous Loops (affaan-m/ECC, 277k stars), Loop (asgeirtj/system_prompts_leaks, 69k stars) and Continuous Agent Loop (affaan-m/ECC, 277k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Understand Project Yylo?

sickn33 (a GitHub user) maintains it in sickn33/agentic-awesome-skills, which has 47,443 GitHub stars. The repository holds 1,497 skills in this directory. The repository was last updated on October 10, 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.