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arc-mcp
Source: npm · also listed on Glama
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ARC1_ALLOWED_ORIGINSOpt-in CORS for browser MCP clients — (comma-separated, exact match). Off by default; native MCP clients don't need itARC1_API_KEYSARC1_AUTHZ_ADMIN_KEYARC1_AUTHZ_DEV_KEYARC1_AUTHZ_MCP_URLARC1_AUTHZ_SQL_KEYARC1_AUTHZ_VIEWER_KEYARC1_AUTH_RATE_LIMITARC1_HTTP_ADDRARC1_LOG_HTTP_DEBUGARC1_MAX_CONCURRENTARC1_MCP_HTTP_RATE_LIMITARC1_OAUTH_DCR_TTL_SECONDSARC1_PLUGINSARC1_PORTARC1_PUBLIC_URLARC1_RATE_LIMITARC1_UIARC1_UI_PORTE2E_MCP_URLGITHUB_STEP_SUMMARYNPL_CLIENTNPL_PASSWORDNPL_URLNPL_USERPROGRAMFILESPROGRAMFILES(X86)SAP_ALLOWED_PACKAGESSAP_ALLOWED_TRANSPORTSSAP_BTP_DESTINATIONSAP_BTP_PP_DESTINATIONSAP_BTP_SERVICE_KEYSAP_BTP_SERVICE_KEY_FILESAP_CLIENTSAP_COOKIE_FILESAP_COOKIE_STRINGSAP_DENY_ACTIONSAction deny list — block specific tool actions with (for example SAPWrite.delete), without exposing low-level operation codes to adminsSAP_HTTP_ADDRSAP_INSECURESAP_LANGUAGESAP_OIDC_CLOCK_TOLERANCESAP_OIDC_SCOPESSAP_PASSWORDSAP_PP_STRICTSAP_URLSAP_USERTEST_FILE_PARALLELISMTEST_SAP_CLIENTTEST_SAP_INSECURETEST_SAP_LANGUAGETEST_SAP_PASSWORDTEST_SAP_URLTEST_SAP_USERVCAP_APPLICATIONTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
1/1 tools missing one or more hints — SAPRead (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint). OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Shell command execution
28 child_process calls — runs shell commands
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Secrets stay with their owner
2 secret/sensitive values flow into network calls (ARC1_AUTHZ_MCP_URL → dynamic, SAP_PASSWORD → dynamic)
Audit where credentials are sent. A NOTION_TOKEN should only reach api.notion.com — never a third-party host.
Secrets not logged
8 secret values sent to console.log
Redact or omit secret values from log output.
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