Presets

Each preset is an ESLint flat-config array with Markdown, TOML, and JSON layers. Spread the array into eslint.config.js.

Preset	Policy
minimal	Essential structure only.
recommended	Balanced default for most repositories.
strict	Recommended plus security and ambiguity checks.
all	Every stable rule.

All four also have a -without-language-plugins variant for consumers that already register markdown and json plugin namespaces.

Rule matrix

Rule	all	minimal	recommended	strict
max-agents-instruction-chain-bytes	✅	—	✅	✅
no-conflicting-mcp-tool-lists	✅	—	—	✅
no-deprecated-config-features	✅	—	✅	✅
no-deprecated-custom-prompts	✅	—	✅	✅
no-duplicate-skill-names	✅	—	—	✅
no-empty-agents-md	✅	✅	✅	✅
no-empty-skill-body	✅	—	✅	✅
no-full-access-without-approval	✅	—	—	✅
no-ignored-hook-matcher	✅	—	✅	✅
no-ignored-project-config-keys	✅	—	✅	✅
no-legacy-profile-config	✅	—	✅	✅
no-mixed-hook-representations	✅	—	✅	✅
no-mixed-permission-models	✅	—	✅	✅
no-unsupported-hook-handler	✅	—	✅	✅
prefer-environment-mcp-credentials	✅	—	—	✅
require-custom-agent-fields	✅	✅	✅	✅
require-existing-relative-skill-links	✅	—	—	✅
require-relative-skill-links	✅	—	✅	✅
require-skill-frontmatter	✅	✅	✅	✅
require-skill-location	✅	—	✅	✅
require-skill-md-filename	✅	—	✅	✅
require-skill-name-match-directory	✅	—	—	✅
require-valid-agent-nickname-candidates	✅	—	✅	✅
require-valid-hook-events	✅	—	✅	✅
require-valid-hook-structure	✅	✅	✅	✅
require-valid-mcp-approval-mode	✅	—	✅	✅
require-valid-mcp-transport	✅	—	✅	✅
require-valid-skill-compatibility	✅	—	—	✅
require-valid-skill-description	✅	—	✅	✅
require-valid-skill-directory-name	✅	—	✅	✅
require-valid-skill-license	✅	—	—	✅
require-valid-skill-name	✅	—	✅	✅