ToolTrust
A2/100
maquina-app

rails-mcp-server

mcp1.5.1

@maquina-app

A Ruby gem implementation of a Model Context Protocol (MCP) server for Rails projects. This server allows LLMs (Large Language Models) to interact with Rails projects through the Model Context Protocol.

By maquina-app | 107 findings | Scanned 6/27/2026 | tooltrust-scanner/v0.3.19 | 562

11 Low96 Info

Risk Summary

Safe With Normal Controls

Dep Visibility is the main signal, but overall risk remains within an acceptable range.

Potential impact: This finding indicates the tool should be reviewed before it is trusted.

Recommended action: No high-risk findings were detected in this scan, but you should still apply least-privilege defaults and rescan after changes.

Suggested policy: keep this tool behind manual approval, do not allow unattended runs, and re-scan after narrowing risky permissions.

Security Findings (107)

  • LowAS-011

    ℹ️Missing Rate-Limit / Timeout ×11

    tool performs network or execution operations but declares no rate-limit, timeout, or retry configuration

    complete_paid_rail_run_with_callbackfetch_return_packageexecute_first_paid_production_runrun_credential_enforcement_dry_runwrite_persistence_test_recordexecute_external_registry_submission_runcreate_x402_payment_challengeupdate_directory_status_recordverify_live_registry_listingsign_directory_submission_receiptpublish_public_repo_ci_badge

    Fix: Declare explicit rate-limit, timeout, and retry configuration for all network and execution tools. Implement exponential back-off and surface resource state to the calling agent.

  • InfoAS-014

    ℹ️Dependency Inventory Unavailable ×72

    Tool did not expose metadata.dependencies or repo_url, so supply-chain coverage is limited.

    list_railsget_active_rail_catalogget_tool_costsget_movement_fee_schedulequote_movement_feequote_runread_agent_self_serve_paid_rail_loopstart_agent_self_serve_paid_rail_loopcomplete_agent_self_serve_paid_rail_runcomplete_paid_rail_run_with_callbackcreate_payment_challengestart_rail_runget_run_statusfetch_return_packagerecord_receiptverify_receiptexecute_first_paid_production_runrun_agent_to_agent_testrun_synthetic_agent_regressionrun_external_agent_invocation_testbuild_external_agent_client_packageissue_agent_credentialenforce_agent_credentialrun_credential_enforcement_dry_runcredential_aware_mcp_writesign_receiptverify_managed_receipt_signaturerotate_signing_secretverify_signature_by_versionbuild_a2a_callback_envelopestore_callback_receipt_recordread_callback_receipt_recordsbuild_external_discovery_submission_packadapt_directory_submissionexecute_directory_submissionrun_directory_submission_adapterrun_multi_agent_rail_benchmarkvalidate_persistent_storewrite_persistence_test_recordstore_regression_reportread_recent_regressionsvalidate_supabase_rls_policy_packpromote_benchmark_reportregister_issued_credentialstore_receipt_ledger_entryread_receipt_ledgerbuild_external_agent_client_runnerrun_external_agent_client_runnervalidate_directory_submission_credentialsbuild_agent_discovery_distribution_planget_free_agent_tools_indexrun_live_supabase_verificationread_live_supabase_verificationexecute_external_registry_submission_runbuild_mcp_package_metadatavalidate_a2a_agent_cardcreate_x402_payment_challengebuild_public_agent_client_repoupdate_directory_status_recordread_directory_status_consoleactivate_external_directory_credentialsverify_live_registry_listingsign_directory_submission_receiptbind_x402_facilitator_settlementcreate_a2a_task_lifecyclepublish_public_repo_ci_badgerun_release_gate_automationcreate_stripe_movement_fee_checkoutverify_stripe_movement_fee_paymentread_payment_settlement_recordsrun_claude_evidence_analysisvalidate_production_write

    Fix: Review and remediate the identified issue.

  • InfoAS-002

    ⚠️Excessive Permissions ×24

    declared capabilities: network access

    complete_paid_rail_run_with_callbackfetch_return_packageverify_live_registry_listing

    declared capabilities: filesystem access

    create_payment_challengecredential_aware_mcp_writebuild_external_discovery_submission_packadapt_directory_submissionexecute_directory_submissionbuild_external_agent_client_runnerbuild_agent_discovery_distribution_planbuild_mcp_package_metadataread_directory_status_consolecreate_a2a_task_lifecyclecreate_stripe_movement_fee_checkoutvalidate_production_write

    declared capabilities: code/command execution

    execute_first_paid_production_runpublish_public_repo_ci_badge

    declared capabilities: HTTP requests

    run_credential_enforcement_dry_run

    declared capabilities: code/command execution, filesystem access

    write_persistence_test_record

    declared capabilities: network access, filesystem access

    execute_external_registry_submission_runcreate_x402_payment_challengeupdate_directory_status_recordsign_directory_submission_receipt

    declared capabilities: filesystem access, environment variables

    run_release_gate_automation

    Fix: Tool requests broad permissions (exec/fs/network). Validate input parameters using Enums where possible, and restrict file system operations to explicit allowed directories.

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$ curl -sfL https://raw.githubusercontent.com/AgentSafe-AI/tooltrust-scanner/main/install.sh | bash
$ tooltrust-scanner scan --server "npx -y rails-mcp-server"

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