{"generated_at":"2026-10-14T20:07:22+00:00","item":{"added_at":"2026-08-05","analysis_method":"independent_manual_review_2026-10-10","assessment_status":"provisional","auth_posture":"auth_required","category":"Web Connector","confidence":"medium","description":"Buffer connects social-media planning and publishing workflows to Claude. Create, edit, schedule, or delete posts and capture content ideas. Review posts and performance across channels already connected to Buffer.","did":"9e536e6c-e8bf-42be-bea4-ef8e02c4d848","documentation_url":"https://developers.buffer.com/guides/integrations/claude","editorial_description":{"extended_description":"","schema_version":1,"summary":"Buffer connects social-media planning and publishing workflows to Claude.\nCreate, edit, schedule, or delete posts and capture content ideas.\nReview posts and performance across channels already connected to Buffer."},"homepage_url":"","icon":"","id":"9e536e6c-e8bf-42be-bea4-ef8e02c4d848","installs":0,"last_scanned":"","license":"","long_description":"","manual_assessment":"high","manual_review":{"all_findings":[{"evidence":"These tools publish or schedule channel content as the connected user.","reasoning":"They communicate to real audiences.","risk_type":"messaging_as_user","severity":"high","title":"Creates/schedules social posts","triggering_tools_or_skills":["create_post","edit_post"]},{"evidence":"The explicit tool removes durable social content.","reasoning":"It is destructive external state.","risk_type":"data_deletion","severity":"high","title":"Deletes social posts","triggering_tools_or_skills":["delete_post"]},{"evidence":"The connector discovers schema and accepts dynamic operations.","reasoning":"The complete runtime action surface is not represented by fixed tool names.","risk_type":"generic_gateway","severity":"high","title":"Executes generic GraphQL mutations/queries","triggering_tools_or_skills":["execute_mutation","execute_query","introspect_schema"]}],"assessment_status":"provisional","auth_and_scopes":"Authentication follows connected Buffer channels.","blocked_missing_evidence":null,"confidence":"medium","displayed_risk":"high","evidence_completeness":"partial","manual_overall_risk":"high","official_sources":[{"accessed_at":"2026-10-10T20:24:37Z","url_or_path":"plutosecurity/plutonium@b749c8dc43536c794409be9805edd48063f045e2:app/data/conn/claudesec/9e536e6c-e8bf-42be-bea4-ef8e02c4d848.json","what_it_proves":"Candidate PR #125 record identity (name \"Buffer\", publisher, type web_connector) and 15 stored tool names; no tool descriptions stored"},{"accessed_at":"2026-09-22T10:46:07Z","url_or_path":"https://api.anthropic.com/api/directory/servers?verified_tier=anthropic,partner,community (snapshot claude-directory-all-tiers-2026-09-22.json)","what_it_proves":"Official Claude Directory listing https://claude.ai/directory/9e536e6c-e8bf-42be-bea4-ef8e02c4d848: complete tool_names inventory (15 tools), remote streamable-http endpoint https://mcp.buffer.com/mcp, auth_posture auth_required, directory tier community"}],"primary_reason":"Buffer can publish/delete social content and exposes generic query/mutation gateways.","provisional_risk":null,"publication_recommendation":"fix","requires_runtime_verification":true,"review_key":"claude:9e536e6c-e8bf-42be-bea4-ef8e02c4d848","reviewed_at":"2026-10-10","reviewer_notes":"Reviewed all 15 tools; dynamic mutation schema needs exhaustive verification.","risk_domains":{"arbitrary_network_access":"false","authz_ambiguity":"unknown","browser_control":"false","credential_or_admin_actions":"false","deletes_data":"true","deployment_or_infrastructure":"false","dynamic_hidden_actions":"true","filesystem_or_repo_access":"false","forwards_data_to_third_party":"true","modifies_data":"true","persistent_credentials":"true","prompt_injection_exposure":"true","provenance_uncertainty":"true","reads_private_data":"true","runs_code_or_queries":"true","sends_messages_as_user":"true","spends_or_moves_money":"false"},"tools_or_skills_reviewed":15,"tools_or_skills_total":15},"name":"Buffer","needs_runtime_verification":true,"plutonium_url":"https://plutonium.pluto.security/detail.html?planet=claudesec&did=9e536e6c-e8bf-42be-bea4-ef8e02c4d848&utm_source=plutonium_analysis_skill&utm_medium=claude_skill&utm_campaign=connector_risk_assessment","privacy_policy_url":"https://buffer.com/legal#privacy-policy","provisional_risk":null,"publication_recommendation":"fix","publisher":"Buffer","publisher_url":"https://buffer.com/","remote_url":"https://mcp.buffer.com/mcp","repository_url":"","risk":"high","risk_severity":"high","security_risks":[{"description":"This connector can publish or send messages and content using the connected identity. Review findings: They communicate to real audiences.","evidence":"Creates/schedules social posts: These tools publish or schedule channel content as the connected user.","manual_risk_type":"messaging_as_user","remediation":{"block_tool_categories":["sends_externally"],"steps":["Require review before messages, posts, or publications are sent.","Restrict delivery to test or internal recipients where possible."]},"risk_type":"sends_messages_as_you","severity":"high","title":"Creates/schedules social posts","triggering_tools":["create_post","edit_post"]},{"description":"This connector can permanently remove data or resources. Review findings: It is destructive external state.","evidence":"Deletes social posts: The explicit tool removes durable social content.","manual_risk_type":"data_deletion","remediation":{"block_tool_categories":["destructive"],"steps":["Disable destructive tools unless deletion is an explicit workflow requirement.","Require human confirmation and verified backups before deletion."]},"risk_type":"deletes_data","severity":"high","title":"Deletes social posts","triggering_tools":["delete_post"]},{"description":"This connector can execute code, commands, queries, or dynamically selected actions. Review findings: The complete runtime action surface is not represented by fixed tool names.","evidence":"Executes generic GraphQL mutations/queries: The connector discovers schema and accepts dynamic operations.","manual_risk_type":"generic_gateway","remediation":{"block_tool_categories":["code_execution"],"steps":["Run only in a sandbox with least-privilege credentials and strict resource limits.","Disable generic execution gateways unless their reachable action set is fully understood.","Require approval before execution against production systems or sensitive data."]},"risk_type":"runs_code","severity":"high","title":"Executes generic GraphQL mutations/queries","triggering_tools":["execute_mutation","execute_query","introspect_schema"]}],"signature_status":"unknown","source_code_reviewed":false,"support_url":"developersupport@buffer.com","tags":["accesses_messaging","deletes_data","network_access","oauth_required","runs_code","sends_messages_as_you","web_connector"],"tools":[{"description":"","name":"create_idea"},{"description":"","name":"create_post","risk":{"category":"sends_externally","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can publish or send messages and content using the connected identity. Review findings: They communicate to real audiences."}},{"description":"","name":"delete_post","risk":{"category":"destructive","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can permanently remove data or resources. Review findings: It is destructive external state."}},{"description":"","name":"edit_post","risk":{"category":"sends_externally","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can publish or send messages and content using the connected identity. Review findings: They communicate to real audiences."}},{"description":"","name":"execute_mutation","risk":{"category":"code_execution","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can execute code, commands, queries, or dynamically selected actions. Review findings: The complete runtime action surface is not represented by fixed tool names."}},{"description":"","name":"execute_query","risk":{"category":"code_execution","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can execute code, commands, queries, or dynamically selected actions. Review findings: The complete runtime action surface is not represented by fixed tool names."}},{"description":"","name":"get_account"},{"description":"","name":"get_aggregated_post_metrics"},{"description":"","name":"get_channel"},{"description":"","name":"get_post"},{"description":"","name":"introspect_schema","risk":{"category":"code_execution","level":"high","recommendation":"Follow the connector-level remediation and require approval for consequential actions.","why":"This connector can execute code, commands, queries, or dynamically selected actions. Review findings: The complete runtime action surface is not represented by fixed tool names."}},{"description":"","name":"list_channels"},{"description":"","name":"list_idea_groups"},{"description":"","name":"list_ideas"},{"description":"","name":"list_posts"}],"tools_count":15,"transport":"streamable-http","type":"web_connector","url":"https://claude.ai/directory/9e536e6c-e8bf-42be-bea4-ef8e02c4d848","uuid":"26b23ecb-504c-55b8-aac8-22c4403abb86","verification_tier":"community","version":""},"query_key":"buffer buffer","schema_version":1,"status":"match"}
