koala73/worldmonitor · error · SafeWebMcpError

Dashboard action result exceeded the safe output limit.

Error message

Dashboard action result exceeded the safe output limit.

What it means

The WebMCP dashboard-action result sanitizer detected that the serialized action result exceeds the safe output limit even after bounding each text field (message 240 chars, target fields 96/64 chars). This is a size guard on the MCP tool response: the action produced an unexpectedly large payload (typically too many targets) and the bounded envelope would still be too big to return.

Solutions

  1. Reduce the action's output size at the source (fewer targets, shorter messages) before serialization
  2. Trim the targets array and set targetsTruncated to fit the limit instead of failing
  3. Add a unit test asserting the bounded envelope stays under the limit for worst-case inputs
Defensive patterns

Strategy: fallback

When it happens

Trigger: Thrown at src/services/webmcp.ts:456 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of koala73/worldmonitor@e586b8b4b8 (2026-08-21). Data as JSON: /api/errors/e2c340369c198075. Report an issue: GitHub.

Appendix: source

Thrown at src/services/webmcp.ts:628

  'techhq',
  'accelerator',
  'exchange',
  'financialcenter',
  'centralbank',
  'commodityhub',
  'flight',
]);
const TOOL_FAILURE_MESSAGES: Record<WebMcpSpaToolName, string> = {
  openCountryBrief: 'World Monitor could not open that country brief.',
  openSearch: 'World Monitor could not open search.',
  get_dashboard_context: 'World Monitor could not read dashboard context.',
  list_map_layers: 'World Monitor could not list map layers.',
  list_dashboard_panels: 'World Monitor could not list dashboard panels.',
  switch_monitor: 'World Monitor could not switch monitors.',
  open_settings: 'World Monitor could not open settings.',
  open_alerts: 'World Monitor could not open alerts.',
  open_dashboard_panel: 'World Monitor could not open that dashboard panel.',
  set_panel_enabled: 'World Monitor could not update that dashboard panel.',
  get_panel_layout: 'World Monitor could not read the panel layout.',
  set_panel_collapsed: 'World Monitor could not update that panel collapse state.',
  move_panel: 'World Monitor could not move that panel.',
  set_panel_fullscreen: 'World Monitor could not update that panel fullscreen state.',
  set_map_view: 'World Monitor could not move the map.',
  set_map_layers: 'World Monitor could not update map layers.',
  set_time_range: 'World Monitor could not set the map time range.',
  focus_country: 'World Monitor could not focus that country.',
  set_map_mode: 'World Monitor could not switch the map mode.',
  search_dashboard: 'World Monitor could not search the dashboard.',
  open_search_result: 'World Monitor could not open that search result.',
  list_dashboard_tabs: 'World Monitor could not list dashboard tabs.',
  select_dashboard_tab: 'World Monitor could not select that dashboard tab.',
  create_dashboard_tab: 'World Monitor could not create that dashboard tab.',
  rename_dashboard_tab: 'World Monitor could not rename that dashboard tab.',
  delete_dashboard_tab: 'World Monitor could not delete that dashboard tab.',
  list_mission_presets: 'World Monitor could not list mission presets.',
  apply_mission_preset: 'World Monitor could not apply that mission preset.',

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