memory-exceptions

memory-exceptions is a cursor rule for Cursor from SecondLifes/delphi-expert. It costs 347 tokens per session, scanned A, original, MIT.

Best practices for memory management (try..finally), memory leaks and focused exception handling in Delphi.

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/secondlifes/delphi-expert/memory-exceptions
Clone the repo
git clone --depth 1 https://github.com/SecondLifes/delphi-expert

Made for: Cursor.

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 memory-exceptions

README.md
[![agentmods](https://agentmods.dev/badge/rules/secondlifes/delphi-expert/memory-exceptions.svg)](https://agentmods.dev/rules/secondlifes/delphi-expert/memory-exceptions)
Your own site
<a href="https://agentmods.dev/rules/secondlifes/delphi-expert/memory-exceptions"><img src="https://agentmods.dev/badge/rules/secondlifes/delphi-expert/memory-exceptions.svg" alt="Measured on agentmods" height="20"></a>
Per session 347 This file is loaded in full into every session.
When invoked 347 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin unknown 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 $0.00347 $0.00347
Opus 5 $0.00173 $0.00173
Sonnet 5 $0.00069 $0.00069
Haiku 4.5 $0.00035 $0.00035

Measured today against content hash aaf1c48c4dda, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

memory-exceptions 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 today.

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.

.cursor/rules/memory-exceptions.mdc · 14 lines

What it actually says

Memory Rules and Exceptions (Delphi)

  • Always use try..finally as soon as you instantiate an object (.Create), placing .Free or FreeAndNil() in finally. The opening of try must be IMMEDIATELY on the next line of creation.
  • DO NOT create multiple objects outside of a safe block. If you have dependencies between them, nest the try..finally blocks. Instantiated, try in the bottom line.
  • Prefer Interfaces (IInterface) whenever building injectable Services and Repository classes to benefit from the compiler's Reference Count Management (ARC), reducing pollution and eliminating the risk of instantiating without Free calls.
  • DO NOT "Shut" Exceptions: When implementing try..except blocks, always define the exact type of error to be handled (Ex: on E: EFDDBEngineException do). DO NOT use generic blind exceptions or brutal suppression (try ... except ... end) unless explicitly required and with extensive documentation/justification.
  • DDD Exceptions: For business logic failures, throw custom Exceptions that inherit from Exception (Ex: raise EBusinessRuleException.Create('Idade inválida para essa operação');).
  • Safe Relaunch: Use the pure word raise; when you want to replay the stacktrace forward in a except. Standard: Infra processing, capture/intercept/log and pure raise;.
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. today First seen · 14 lines · 347 tokens per session scan A aaf1c48c4dda

Subscribe to this mod's changes

memory-exceptions is a cursor rule published in the GitHub repository SecondLifes/delphi-expert (3 stars, last pushed 2d ago), licensed MIT. It adds 347 tokens to every session, about $0.0017 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.