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Standard 02 of 09

Rule-Centric & Default Quiet

AIs that impose their own opinions on code style generate alert fatigue and are quickly ignored. Code Review in the PR must be Default Quiet.

nit: indent add semicolon rename to camel missing type ⚠ SQL Injection

Rule-Centric & Default Quiet: The end of AI nitpicking

If an AI comments on indentation, variable naming conventions, or missing semicolons, it should be uninstalled immediately. That is a linter’s job, not an intelligence’s job.

First-generation AI code reviewers suffer from a critical flaw: they are too eager to please. Because they want to prove they are working, they leave dozens of trivial comments on every Pull Request. This generates immediate alert fatigue. Engineers learn to click “Resolve All” without reading, defeating the entire purpose of the review.

The “Default Quiet” Philosophy

A production-grade AI must adhere to the Default Quiet philosophy. Unless it detects a critical issue (e.g., a security vulnerability or a severe logic flaw), the AI should not comment on a Pull Request.

Every stylistic or architectural opinion must be backed by an explicit team rule.

The AI must enforce the company’s standard, not the standard it (or its foundational model) thinks is best.

Managing Rules as Code

To achieve this, the AI must be Rule-Centric.

  1. Centralized Standards: Rules should be defined in plain text (e.g., a .kodyrules file or CONTRIBUTING.md) and version-controlled alongside the code.
  2. Contextual Enforcement: The AI must read these rules and use them as the absolute source of truth for its review context.
  3. No Unprompted Opinions: If the team hasn’t explicitly forbidden a pattern (and it isn’t an objective bug), the AI must remain silent.

A quiet PR is a good PR. Let the AI focus on the deep architectural flaws that linters cannot catch.

Who meets this standard

Of the 27 tools in the directory, 11 document this fully and 13 partially, as of their last verification. Every note below is drawn from the vendor's own documentation.

Documented — 11

Cubic

cubic.yaml custom agents with sensitivity levels and ignore filters; docs promise minimal verbosity.

Augment Code

YAML review guidelines with globs and severities; docs commit to high signal-to-noise and no style nags.

Kodus

Plain-language Kody Rules with global-repo-directory scope; auto-imports .cursorrules, CLAUDE.md, AGENTS.md, etc.

CodeAnt AI

Custom rules, instructions, personas, org-wide .codeant config; threshold limits output to critical issues.

Entelligence AI

Guidelines per repo/language/path, generated from review history; confidence thresholds and comment limits.

Semgrep

Fully rule-centric: custom rules, registry, and policy modes (Monitor/Comment/Block) control PR noise.

Tabnine

Prebuilt plus fully customizable plain-language rules; changed lines are checked against team rules.

SonarQube

Deterministic rule engine with per-project quality profiles and gates; flags only configured rule violations.

Codacy

12,000+ configurable rules with first-class quality gates and merge blocking; rules are config, not prose.

Qodana

Deterministic inspection profiles, baselines, and quality gates fully controlled by the team.

Cursor BugBot

Path-scoped .cursor/BUGBOT.md rules plus org-wide team rules; deliberately quiet, bug-only scope.

~ Partial — 13

Baz

Custom reviewers via dedicated system prompts dispatched on matching diffs; quiet-default mechanics not documented.

CodeRabbit

Custom instructions, path filters, and a quieter review profile; default posture is verbose.

Greptile

Plain-English custom rules on Pro; community reports on default precision/noise are mixed.

Qodo

Rules system with unlimited rules on the commercial platform; default-quiet posture not documented.

Gemini Code Assist

Custom style guides and a severity threshold config; default posture reviews every PR verbosely.

OpenReview

Reviews only when mentioned, quiet by design; extensible skills in .agents/skills, no severity config.

Snyk Code

Deterministic security rules with custom rules on higher tiers; scope limited to security findings.

Aikido Security

Curated scanner rules with rule-based plus LLM autotriage; noise reduction is the core pitch.

PR-Agent

Configurable via TOML with your own conventions; no rule management UI or plain-language rules.

Bito

Custom review guidelines supported (Professional tier); enforcement depth not documented.

GitHub Copilot code review

Repo instructions (copilot-instructions.md, AGENTS.md, path-scoped files) give basic standards control.

Sourcery

Customizable review rules supported; enforcement depth not detailed in sources we verified.

DeepSource

Configurable static analyzers; custom AI review rules not documented.

Not offered or undocumented — 3

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