# list_storage_objects A read tool on the Supabase MCP Server - Self-Hosted Edition MCP server. Agent View of the PolicyLayer registry record for `list_storage_objects`. HTML page: https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/list-storage-objects ## Facts - Tool: `list_storage_objects` - Server: Supabase MCP Server - Self-Hosted Edition (`abdqum/supabase-mcp-selfhosted`) — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted.md - Homepage: https://github.com/abdqum/Supabase-MCP-SelfHosted - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "list_storage_objects", "arguments": {} } } ``` ## Why list_storage_objects is rated Low The tool name follows standard Read operation nomenclature ('list'). In Supabase storage contexts, listing objects retrieves metadata about stored files without modifying them. From the tool's own definition: "Tool name 'list_storage_objects' indicates retrieval/enumeration of storage objects. The 'list' verb is a strong signal of read-only query operation. Tool description is empty, limiting direct confirmation." ## Use case AI agents call list_storage_objects to retrieve information from Supabase MCP Server - Self-Hosted Edition without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Supabase MCP Server - Self-Hosted Edition: ```json { "version": "1", "default": "deny", "tools": { "list_storage_objects": {} } } ``` ## Other tools on Supabase MCP Server - Self-Hosted Edition (56) - `delete_auth_user` — Destructive — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/delete-auth-user.md - `delete_subscription` — Destructive — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/delete-subscription.md - `apply_migration` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/apply-migration.md - `auto_create_indexes` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/auto-create-indexes.md - `auto_migrate` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/auto-migrate.md - `execute_psql` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/execute-psql.md - `execute_sql` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/execute-sql.md - `manage_docker` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/manage-docker.md - `manage_functions` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/manage-functions.md - `manage_triggers` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/manage-triggers.md - `push_migrations` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/push-migrations.md - `realtime_management` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/realtime-management.md - `rebuild_hooks` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/rebuild-hooks.md - `smart_migration` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/smart-migration.md - `sync_schema` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/sync-schema.md - `vacuum_analyze` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/vacuum-analyze.md - `validate_migration` — Execute — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/validate-migration.md - `hello` — Other — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/hello.md - `analyze_performance` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/analyze-performance.md - `analyze_rls_coverage` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/analyze-rls-coverage.md - `audit_security` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/audit-security.md - `check_health` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/check-health.md - `generate_typescript_types` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/generate-typescript-types.md - `get_anon_key` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/get-anon-key.md - `get_auth_user` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/get-auth-user.md - `get_database_connections` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/get-database-connections.md - `get_database_stats` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/get-database-stats.md - `get_logs` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/get-logs.md - `get_project_url` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/get-project-url.md - `get_service_key` — Read — https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted/get-service-key.md - …and 26 more: https://policylayer.com/tools/abdqum-supabase-mcp-selfhosted.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=abdqum-supabase-mcp-selfhosted · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/abdqum-supabase-mcp-selfhosted