rules-maintenance

A set of guidelines for keeping a codebase's rules up to date as its patterns and practices change.

In plain words
What is it for?
Reviewing existing rules, spotting patterns across files, and deciding when to add or revise rules.
Why use it?
It helps teams turn repeated code patterns, common mistakes, and new best practices into shared guidance.

Cursor rule

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/ranyitz/aicm/rules-maintenance
Clone the repo
git clone --depth 1 https://github.com/ranyitz/aicm
Per session 135 This file is loaded in full into every session.
When invoked 135 The same file — it is already loaded in full.
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 $0.00135 $0.00135
Opus 5 $0.00068 $0.00068
Sonnet 5 $0.00027 $0.00027
Haiku 4.5 $0.00014 $0.00014

Measured 2d ago against content hash d65e88476ac6, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

rules-maintenance 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.

rules/rules-maintenance.mdc · 25 lines

What it actually says

Update Triggers

  • New patterns in 3+ files
  • Repeated implementations
  • Common errors preventable by rules
  • Consistent library usage
  • Emerging best practices

Analysis

  • Compare code vs existing rules
  • Identify standardization opportunities
  • Check external doc references
  • Monitor error/test patterns

Rule Updates

  • Add: New tech/pattern in 3+ files, preventable bugs, repeated code review feedback
  • Modify: Better examples exist, new edge cases, related rule changes, implementation shifts
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 · 25 lines · 135 tokens per session scan A d65e88476ac6

Subscribe to this mod's changes

rules-maintenance is a cursor rule published in the GitHub repository ranyitz/aicm (36 stars, last pushed 5mo ago), licensed MIT. It adds 135 tokens to every session, about $0.0007 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 2026-08-30.