// SCAN REPORT

Rails Insight

17 tools. 1 can modify or destroy data without limits.

1 write tool that can modify data. Rate limits recommended.

Last updated: 29 Jun 2026

1 can modify or destroy data

16 read-only

17 tools total

Community server · catalogue entry verified 29/06/2026

How to control Rails Insight ↓

TOOL MAP

What Rails Insight exposes to your agents

Read (16) Write / Execute (1) Destructive / Financial (0)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

High Risk

The most dangerous Rails Insight tools

Execute · Medium index_project This tool triggers an active re-scanning and re-indexing operation on the project filesystem.

1 of Rails Insight's 17 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control Rails Insight

PolicyLayer is an MCP gateway — it sits between your AI agents and Rails Insight, and nothing reaches the server without passing your rules. These are the rules we recommend:

Cap read operations

{
  "get_blast_radius": {
    "limits": [
      {
        "counter": "get_blast_radius_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register Rails Insight — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON RAILS INSIGHT →

Instant setup, no code required.

FULL CATALOGUE

All 17 Rails Insight tools

EXECUTE 1 tools

Execute index_project Re-index the Rails project. In local mode, re-scans the project root. Returns statistics and duration.

READ 16 tools

Read get_blast_radius Analyse the impact of code changes. Accepts explicit file paths or auto-detects from git diff. Returns impacte Read get_controller Deep extraction for a specific controller: actions with routes, filters, rate limiting, strong params, rescue Read get_coverage_gaps Returns prioritised list of files needing test coverage, with structural context from RailsInsight and per-met Read get_deep_analysis Get deep analysis for a specific category. Categories: authentication, authorization, jobs, email, storage, ca Read get_domain_clusters Returns domain-clustered file groups for parallel test generation. Files in the same cluster share association Read get_factory_registry Returns parsed FactoryBot factory definitions including attributes, traits, sequences, and associations. Use t Read get_full_index Complete index JSON trimmed to fit a specified token budget. Read get_model Deep extraction for a specific model: associations, validations, scopes with queries, enums with values, callb Read get_overview Project summary: Rails/Ruby versions, database, auth strategy, key models and controllers, frontend stack, fil Read get_review_context Get a token-budgeted structural summary of entities impacted by code changes. Returns compact Rails-aware desc Read get_routes Complete route map with namespaces, nested resources, member/collection routes. Read get_schema Database schema with tables, columns, indexes, foreign keys, and model-to-table mapping. Read get_subgraph Skill-scoped relationship subgraph with ranked files. Skills: authentication, database, frontend, api, jobs, e Read get_test_conventions Returns detected test patterns and conventions: spec style (request vs controller), let style, auth helper, fa Read get_well_tested_examples Returns high-quality existing spec files suitable as pattern references for test generation agents. Selected b Read search_patterns Search across all extractions for a specific Rails pattern type (e.g.

FAQ

Questions about Rails Insight

Is the Rails Insight MCP server safe to use without restrictions? +

The Rails Insight server is primarily read-only with 16 read tools. While it cannot modify data, an agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up costs. Rate limiting is still recommended.

How many tools does the Rails Insight MCP server expose? +

17 tools across 1 categories: Read. 16 are read-only. 1 can modify, create, or delete data.

How do I enforce a policy on Rails Insight? +

Register the Rails Insight MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every Rails Insight tool call.

Deterministic rules across all 17 Rails Insight tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON RAILS INSIGHT →

Instant setup, no code required.

17 Rails Insight tools catalogued and risk-classified — across an index of 43,000+ MCP servers.