Source
Open the upstream repository and check maintainers, README scope, examples, and recent activity.
tool
Agent readyRuler
Review before use
CLI for applying the same coding-agent rules across several assistants. GitHub metadata was checked on 2026-06-27; the listed license is no-fee and permissive for review, evaluation, and responsible reuse.
Source review
License
Confirm MIT terms fit your project and retain notices when required.
Install behavior
Read commands before running them and start with a low-risk local workspace.
Verification
Check outputs, safety notes, and policy fit before exposing the resource to agent workflows.
Why use it
Use it when a project needs one source of rules that can sync to multiple agent clients and the team wants inspectable provenance before adoption.
When to use
- You need one source of rules that can sync to multiple agent clients.
- The upstream README and license fit the target project.
- You can test the integration on non-production data first.
When not to use
- The tool needs broader access than the task requires.
- The tool result could feed untrusted text into an agent without review.
Agent manifest preview
Use the manifest as structured review context before applying local policy.
{
"schemaVersion": "1.0",
"slug": "ruler",
"title": "Ruler",
"kind": "tool",
"summary": "CLI for applying the same coding-agent rules across several assistants.",
"sourceUrl": "https://github.com/intellectronica/ruler",
"agentAccess": "approved",
"license": {
"spdx": "MIT",
"allowsClosedSourceUse": true,
"requiresNotice": true,
"noLicenseFee": true
},
"install": {
"steps": [
"Read the README, license, and exposed commands.",
"Run with a sample workspace or read-only token.",
"Add write permissions only after review."
]
},
"outputs": [
"tool response",
"MCP payload",
"automation result"
],
"usage": {
"whyUse": "Use it when a project needs one source of rules that can sync to multiple agent clients and the team wants inspectable provenance before adoption.",
"whenToUse": [
"You need one source of rules that can sync to multiple agent clients.",
"The upstream README and license fit the target project.",
"You can test the integration on non-production data first."
],
"whenNotToUse": [
"The tool needs broader access than the task requires.",
"The tool result could feed untrusted text into an agent without review."
],
"safetyNotes": [
"Keep required license notices when redistributing copied source or bundled code.",
"Review network, filesystem, and credential access.",
"Scope tokens and write actions to the smallest surface."
]
},
"repository": {
"owner": "intellectronica",
"name": "ruler",
"stars": 2775,
"defaultBranch": "main"
},
"lifecycle": {
"githubUpdatedAt": "2026-06-27T00:01:05Z",
"githubPushedAt": "2026-06-24T17:40:46Z",
"lastVerifiedAt": "2026-06-27T00:00:00.000Z"
}
}