Cursor rules for manifest development with YAML integration

Cursor rules for manifest development with YAML integration is a skill for Claude Code, Codex from AmariahAK/atlarix-skills. It costs 8 tokens per session (794 once invoked), scanned A, original, Apache-2.0.

A set of instructions for creating lightweight demo backends with Manifest, using YAML to describe the backend structure and seed data.

In plain words
What is it for?
Use it to create Manifest demo backends, add their npm scripts, define data in YAML, seed sample data, and configure YAML editing support.
Why use it?
It gives the coding agent a repeatable project setup and keeps the YAML configuration aligned with the required package and editor support.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions Cursor.

Good fit Use it to create Manifest demo backends, add their npm scripts, define data in YAML, seed sample data, and configure YAML editing support.

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Install with agentmods
npx agentmods add skills/amariahak/atlarix-skills/acr-manifest-yaml-cursorrules-prompt-file
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add AmariahAK/atlarix-skills --skill acr-manifest-yaml-cursorrules-prompt-file
Clone the repo
git clone --depth 1 https://github.com/AmariahAK/atlarix-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Cursor rules for manifest development with YAML integration

README.md
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Your own site
<a href="https://agentmods.dev/skills/amariahak/atlarix-skills/acr-manifest-yaml-cursorrules-prompt-file"><img src="https://agentmods.dev/badge/skills/amariahak/atlarix-skills/acr-manifest-yaml-cursorrules-prompt-file/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Cursor rules for manifest development with YAML integration

Your own site · 80×15
<a href="https://agentmods.dev/skills/amariahak/atlarix-skills/acr-manifest-yaml-cursorrules-prompt-file"><img src="https://agentmods.dev/badge/skills/amariahak/atlarix-skills/acr-manifest-yaml-cursorrules-prompt-file.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 8 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 794 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00008 $0.00794
Opus 5 $0.00004 $0.00397
Sonnet 5 $0.00002 $0.00159
Haiku 4.5 $0.00001 $0.00079

Measured 9d ago against content hash 48fe83f4e202, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Cursor rules for manifest development with YAML integration scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/acr-manifest-yaml-cursorrules-prompt-file/SKILL.md · 81 lines

How it starts

The opening of the file, as written. The whole thing — 81 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cursor rules for manifest development with YAML integration

When to use this skill

Cursor rules for manifest development with YAML integration.

Source

Synced from https://github.com/PatrickJS/awesome-cursorrules/tree/main/rules/manifest-yaml-cursorrules-prompt-file.mdc.

Prompt for Expert Manifest Developer

You are an assistant for app creation. You are going to use the backend Manifest. The apps you generate are light and for demo purposes: you not aim to provide all the data structure but instead showcase a variety of property types.

Code structure When asked to create a backend, execute the following actions:

  1. Install the manifest npm package
  2. Add the following scripts to pacakge.json: "manifest": "node node_modules/manifest/scripts/watch/watch.js" and "manifest:seed": "node node_modules/manifest/dist/manifest/src/seed/scripts/seed.js"
  3. Create the manifest/backend.yml file and add the manifest code to it.
  4. Add the redhat.vscode-yaml as recommendation in .vscode/extensions.json
  5. Configure yaml.schemas only with a schema URL or local schema file verified for the Manifest backend version used by the project.

Backend file On the manifest/backend.yml, follow those rules:

  • Strictly follow the Manifest JSON Schema shipped with the project or verified from the current Manifest backend documentation.
  • Start by addind a quick name to the app
  • Limit to 2 or 3 entities maximum
  • Limit to 4 properties maximum per entity
  • Try to showcase different property types
  • Only use validation properties once or twice
  • No entity should be called admin
  • Do not use authenticable entities
  • Add an emoji after each entity name, but do not use the emoji it on relationships references
  • Add a linebreak before each entity object
  • Each entity only appears once. Relationships goes just below the properties, do not repeat the entity name.
  • Do not use special characters. . Do not use middlewares, endpoints or hooks.
  • Use YAML abbreviated form for objects, with spaces. Example: { name: issueDate, type: date }
  • Do not add relationships to single entities
  • For relationships, use the short form. Ex: ' belongsTo: - Author'
  • Add policies. Most projects only have "read" public policies. Some projects have "create" public policies when anyone can post (contact forms submissions, comments, etc.)
  • If using the "choice" property type, use "options.values" property to list choices. Example: { name: type, type: choice, options: { values: ["Fire", "Water", "Grass"] } }
  • Do not add "seedCount" and "mainProp" to entities

Read the full file on GitHub · 81 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 81 lines · 8 tokens per session scan A 48fe83f4e202

Subscribe to this mod's changes

Cursor rules for manifest development with YAML integration is a skill published in the GitHub repository AmariahAK/atlarix-skills (2 stars, last pushed 5d ago), licensed Apache-2.0. It adds 8 tokens to every session and 794 once invoked, about $0.0000 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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