buildable

A local-first workflow for turning a plain-language app idea into a working prototype. It uses Buildable's planning and design guidance with mock or local data by default.

In plain words
What is it for?
Use it to plan, generate, and review local app prototypes from a written description.
Why use it?
It gives coding agents a defined process for clarifying an app idea and building it without assuming cloud services, user accounts, billing, or deployment.

Cursor rule for Cursor

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.

agentmods
npx agentmods add rules/suntay44/buildable-plugin-skills/buildable
Clone the repo
git clone --depth 1 https://github.com/suntay44/buildable-plugin-skills

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 187 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00187
Opus 5 $0.00000 $0.00093
Sonnet 5 $0.00000 $0.00037
Haiku 4.5 $0.00000 $0.00019

Measured 2d ago against content hash 34025c03c68e, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

buildable 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 2d 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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

  • buildable — 100% identical, 0 lines differ
.cursor/rules/buildable.mdc · 20 lines

What it actually says

Buildable Cursor Rule

When the user asks to generate a local app prototype, use Buildable's workflow from this local repository. Prefer running buildable plan "<prompt>" first when a concrete app spec would reduce ambiguity.

  1. Classify the prompt with core/classifier.md.
  2. Apply core/ask-vs-build-policy.md.
  3. Generate an app spec with core/app-spec-schema.md.
  4. Load only the relevant files from knowledge/ and templates/.
  5. Build locally with mock/local data by default.
  6. Review against knowledge/quality-rubrics/.

Do not add billing, accounts, cloud previews, managed databases, telemetry, hosted deployment, or central template services unless explicitly requested.

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. 2d ago First seen · 20 lines · 0 tokens per session scan A 34025c03c68e

Subscribe to this mod's changes

buildable is a cursor rule published in the GitHub repository suntay44/buildable-plugin-skills (53 stars, last pushed 8d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 187 tokens. 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 2026-08-30.