com-example-database-UserEntity

Database and data-format rules for UserEntity, which maps application data to the users table and a billing read-model.

In plain words
What is it for?
Changing fields, database columns, or serialized data while adding a backward-compatible Flyway migration first.
Why use it?
They prevent changes from breaking existing stored data or systems that still expect the old format.

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/pisberg/vibetags/com-example-database-userentity
Clone the repo
git clone --depth 1 https://github.com/PIsberg/vibetags

Made for: Cursor.

Per session 0 Nothing until a file matches its globs; then the whole rule loads.
When invoked 116 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 $0.00116
Opus 5 $0.00000 $0.00058
Sonnet 5 $0.00000 $0.00023
Haiku 4.5 $0.00000 $0.00012

Measured 3d ago against content hash 634c4d9e15ed, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

com-example-database-UserEntity 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 3d 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.

examples/basic/.cursor/rules/com-example-database-UserEntity.mdc · 14 lines

What it actually says

Rules for UserEntity

Schema & Serialization Safety

  • Rule: Prohibit altering data formats, fields, database columns, or serialization structures without explicit backward-compatible migration paths.
  • Reason: Maps to the users table replicated to the billing read-model; renaming a column or changing a type needs a backward-compatible Flyway migration first
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. 3d ago First seen · 14 lines · 0 tokens per session scan A 634c4d9e15ed

Subscribe to this mod's changes

com-example-database-UserEntity is a cursor rule published in the GitHub repository PIsberg/vibetags (14 stars, last pushed 3d ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 116 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.