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Agent skill

Cy Create Spec

by compozy in compozy/compozy

Create or update a requested CompozyOS spec and its applicable companion contracts, reusing current decisions and research.

MITAuto-check passedProduct & Project Management

Install Cy Create Spec

skills CLI
$ npx skills add compozy/compozy --skill cy-create-spec -a claude-code

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

GitHub CLI
$ gh skill install compozy/compozy cy-create-spec --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/compozy/compozy.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.agents/skills/cy-create-spec .claude/skills/cy-create-spec && 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
cy-create-spec
GitHub stars
2.8k
Token cost
~848 tokens
SKILL.md length
415 words
Files
8 (incl. references)
Skills in repo
47
Repo updated
First seen
Licence
MIT

At a glance

Create or update a requested CompozyOS spec and its applicable companion contracts, reusing current decisions and research.

  • Works in 8 steps: Reuse the user's decisions, existing… → State the motivating problem, observable… → Write Part I and _user_stories.md from… → …
  • Product & Project Management work in your project
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Cy Create Spec is an agent skill from compozy/compozy. Create or update a requested CompozyOS spec and its applicable companion contracts, reusing current decisions and research. Not a prerequisite for ordinary coding tasks.

Its SKILL.md is about 850 tokens, which your agent loads only when the skill is triggered. The skill folder holds 8 other files, including reference files (for example `references/adr-template.md`, `references/dx-template.md` and `references/grill-protocol.md`).

It sits in Product & Project Management. The repository describes itself as: An operating system for AI agents. Plug in the agent CLIs you already use (Claude Code, Codex, Gemini CLI, Cursor) and they become a team: they split the work, hand tasks to each… The licence is MIT.

When your agent uses it

  • Product & Project Management work in your project

Example prompts

  • “/cy-create-spec”

Workflow steps

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

  1. Reuse the user's decisions, existing spec, and current research. Inspect relevant code/contracts for unresolved questions. Market research…
  2. State the motivating problem, observable outcome, scope, and non-goals. Ask focused questions only for decisions the evidence cannot…
  3. Write Part I and _user_stories.md from references/spec-template.md and references/user-stories-template.md. Product requirements may name…
  4. Define the changed public surface before its internal implementation: _dx.md uses references/dx-template.md; UI-bearing work uses _uiux.md…
  5. Write Part II with the concrete contracts the design changes. Read only relevant ADRs/analysis. Use references/adr-template.md for…
  6. Write _tests.md using references/tests-template.md: distinct invariants, owning suites, inputs/results, and necessary integration…
  7. Check applicable spec markers with cy-spec-preflight, contract consistency, and the earliest useful end-to-end outcome. Choose slice count…
  8. Save reviewable files and summarize unresolved decisions. After the user approves the saved spec, offer optional cy-spec-peer-review…

What it can do on your machine

Read from SKILL.md and the folder at commit eec2ed1. 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.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    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.

Context cost

Cy Create Spec loads about 848 tokens when it runs, and up to ~8k if it reads all its reference files. Until then it costs about 46 tokens; SKILL.md has 415 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~46
When it runs · the whole SKILL.md, loaded when a task matches
~848
With references · SKILL.md plus every file in references/, read only if the agent opens them
~8k

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 compozy/compozy at commit eec2ed1, republished under its MIT licence (© compozy). 415 words, ~848 tokens.

Download SKILL.mdSave it as .claude/skills/cy-create-spec/SKILL.md (or your agent's skills folder). This skill also uses 7 other files; get the full folder from GitHub.
name
cy-create-spec
description
Create or update a requested CompozyOS spec and its applicable companion contracts, reusing current decisions and research. Not a prerequisite for ordinary coding tasks.

Create Spec

Use for a requested specification, not as a prerequisite to an ordinary fix. Author _spec.md with Product and Technical parts and the applicable companion contracts under .compozy/tasks/<slug>/.

  1. Reuse the user's decisions, existing spec, and current research. Inspect relevant code/contracts for unresolved questions. Market research is needed only for a market/product uncertainty or an explicit request; delegation is optional and bounded.
  2. State the motivating problem, observable outcome, scope, and non-goals. Ask focused questions only for decisions the evidence cannot settle; apparent simplicity is not evidence. An approved direction satisfies the product checkpoint; do not repeat an interview or approval already completed. For an open-ended product interview, use the relevant branch of references/grill-protocol.md.
  3. Write Part I and _user_stories.md from references/spec-template.md and references/user-stories-template.md. Product requirements may name a technology when it is an actual public contract or fixed user constraint; incidental implementation belongs in Part II.
  4. Define the changed public surface before its internal implementation: _dx.md uses references/dx-template.md; UI-bearing work uses _uiux.md and references/uiux-template.md. For an internal-only spec, a brief no-public-surface entry is sufficient. Preserve named visual references and production owners.
  5. Write Part II with the concrete contracts the design changes. Read only relevant ADRs/analysis. Use references/adr-template.md for consequential decisions with real alternatives; a routine choice needs no standalone ADR. Include SD-013 compatibility for changed user state/public surfaces, delete targets, and one owning impact analysis with links from companions.
  6. Write _tests.md using references/tests-template.md: distinct invariants, owning suites, inputs/results, and necessary integration journeys. Reuse existing coverage; no quotas per component, error class, or layer.
  7. Check applicable spec markers with cy-spec-preflight, contract consistency, and the earliest useful end-to-end outcome. Choose slice count from dependencies/risk; slice_budget is a planning preference, not a forced split or permission loop.
  8. Save reviewable files and summarize unresolved decisions. After the user approves the saved spec, offer optional cy-spec-peer-review; apply only selected findings. Do not start implementation merely because spec writing is complete.
Show full SKILL.md (93 more words)Show less

Templates are section guides: keep shared outcome/contract content, omit irrelevant sections or record a short reason where a downstream schema requires a slot. Read each reference when its branch is used, not the whole package. Maintain a concise File References index naming contract inputs and why each matters; tasks copy their relevant subset. Preserve requested scope; narrowing an accepted motivating problem requires the user's recorded decision.

For updates, edit affected sections/companions only. Missing or contradictory inputs are resolved from user decisions and current policy; report a genuinely blocking missing contract without inventing it.

© compozy, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 7 other files (references) in .agents/skills/cy-create-spec of compozy/compozy.

  • SKILL.md
  • references/adr-template.md
  • references/dx-template.md
  • references/grill-protocol.md
  • references/spec-template.md
  • references/tests-template.md
  • references/uiux-template.md
  • references/user-stories-template.md

Open the folder on GitHubat commit eec2ed1

Compare with similar skills

Cy Create Spec 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.

Cy Create Spec compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Cy Create Spec this skillcompozy/compozy2.8k—~848Automated safety check: PassMIT
User Story Writerdeanpeters/Product-Manager-Skills7.2k2 repos~2.9kAutomated safety check: PassCustom licence
Game Changing FeaturesopenstatusHQ/data-table-filters2.3k3 repos~2.1kAutomated safety check: PassMIT
CCPM Project Managementautomazeio/ccpm8.4k—~1.1kAutomated safety check: PassMIT
Convex Create Componentspokvulcan/poker-planning1148 repos~2.6kAutomated safety check: PassMIT
Self Improving Agentfarm-fe/farm5.6k2 repos~3.3kAutomated safety check: NotesMIT

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Categories

Questions about Cy Create Spec

What does Cy Create Spec do?

Create or update a requested CompozyOS spec and its applicable companion contracts, reusing current decisions and research. Cy Create Spec is an agent skill from compozy/compozy. Create or update a requested CompozyOS spec and its applicable companion contracts, reusing current decisions and research.

When should I use Cy Create Spec?

Cy Create Spec fits situations like: product & Project Management work in your project.

How do I install Cy Create Spec in Claude Code?

Run `npx skills add compozy/compozy --skill cy-create-spec -a claude-code`. Or copy the skill folder (.agents/skills/cy-create-spec in compozy/compozy) into .claude/skills/cy-create-spec in your project. Claude Code loads it when a task matches its description.

How do I install Cy Create Spec in Codex?

Run `npx skills add compozy/compozy --skill cy-create-spec -a codex`. Or copy the skill folder (.agents/skills/cy-create-spec in compozy/compozy) into .agents/skills/cy-create-spec in your project. Codex loads it when a task matches its description.

Can I use Cy Create Spec 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 compozy/compozy --skill cy-create-spec -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cy-create-spec, .gemini/skills/cy-create-spec, .github/skills/cy-create-spec and .opencode/skills/cy-create-spec in your project.

What does Cy Create Spec need to run?

SKILL.md names no scripts, command-line tools or credentials: Cy Create Spec is instructions for the agent only.

Does Cy Create Spec access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Cy Create Spec 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 Cy Create Spec use?

Cy Create Spec is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Cy Create Spec use?

About 848 tokens (SKILL.md is roughly 3.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 7.2k tokens, read only when the agent opens those files.

What are the alternatives to Cy Create Spec?

Skills that share tags, products or a category with Cy Create Spec: User Story Writer (deanpeters/Product-Manager-Skills, 7.2k stars), Game Changing Features (openstatusHQ/data-table-filters, 2.3k stars), CCPM Project Management (automazeio/ccpm, 8.4k stars) and Convex Create Component (spokvulcan/poker-planning, 114 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Cy Create Spec?

compozy (a GitHub organization) maintains it in compozy/compozy, which has 2,792 GitHub stars. The repository holds 47 skills in this directory. The repository was last updated on October 8, 2026.

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