Source-backed capability map
Hronaut combines durable browser workspaces with semantic interaction, browser diagnostics, QA evidence, network inspection, and mediated local wallets. This is the complete advertised tool surface—not a sample list.
Verified against the public Hronaut source on September 2, 2026.
What this proves
An agent can keep task-owned browser state, address pages through semantic refs, collect bounded debugging evidence, reproduce defects, and hand control back to a person. The catalog describes capability, not blanket permission: workspace ownership, input validation, authentication, interaction locks, and explicit confirmations still apply.
Complete catalog
Names below are the exact MCP names advertised by Hronaut. Compatible clients also receive human-readable titles and explicit read-only, destructive, idempotent, and open-world hints.
18 tools
Create or resume isolated workspaces, select visible tabs, inspect origin storage, and manage browser-owned records.
browser_workspacesbrowser_saved_workspacesbrowser_statusbrowser_showbrowser_request_user_attentionbrowser_tabsbrowser_new_tabbrowser_select_tabbrowser_close_tabbrowser_bookmarksbrowser_visit_historybrowser_site_databrowser_storagebrowser_storage_changesbrowser_storage_usagebrowser_indexeddbbrowser_pwabrowser_downloads17 tools
Prefer bounded snapshots and semantic refs, then navigate, wait, inspect, or act on the same visible page.
browser_navigatebrowser_historybrowser_snapshotbrowser_findbrowser_element_inspectbrowser_generate_locatorbrowser_clickbrowser_dialogbrowser_typebrowser_selectbrowser_fill_formbrowser_hoverbrowser_dragbrowser_scrollbrowser_pressbrowser_file_uploadbrowser_wait7 tools
Change reproducible page conditions, capture visual or PDF evidence, or run explicitly requested JavaScript.
browser_emulatebrowser_resizebrowser_zoombrowser_audiobrowser_screenshotbrowser_pdf_savebrowser_evaluate16 tools
Collect bounded accessibility, quality, performance, memory, DOM, console, and reproduction evidence in the active session.
browser_accessibility_auditbrowser_quality_auditbrowser_performancebrowser_design_overviewbrowser_page_metadatabrowser_securitybrowser_code_coveragebrowser_cpu_profilebrowser_memorybrowser_debug_reportbrowser_reprobrowser_dom_changesbrowser_visual_comparebrowser_issuesbrowser_consolebrowser_diagnostic_logs7 tools
Observe request timing and bounded content, export HAR evidence, or deliberately replay and route traffic.
browser_networkbrowser_network_waitbrowser_network_searchbrowser_network_requestbrowser_network_replaybrowser_network_harbrowser_network_routes6 tools
Inspect attached wallets and ask Hronaut to prepare, approve, submit, track, or cancel a scoped request without returning private keys.
wallet_listwallet_balancewallet_prepare_transactionwallet_requestwallet_request_statuswallet_cancel_requestSafety boundary
Safety annotations are advisory metadata for compatible clients and approval interfaces. Hronaut only marks a tool read-only when every supported mode is observational; combined list/edit/clear tools remain non-read-only. Browser-facing reads stay open-world because sanitized page and network evidence still originates outside Hronaut.
Those hints do not replace owner-token authentication, task-owned workspace authorization, tab validation, input bounds, human interaction locks, wallet policy checks, or side-effect confirmations. Review the security and release trust page before granting an agent access to valuable signed-in sessions.
Primary sources
Try the visible workflow
Install Hronaut, copy the current profile-specific MCP setup from Home, then run the observable first task. No hosted browser account is required.