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// MCP TOKEN COST

The Yaver MCP server costs 54,408 tokens before the first call.

Every request your agent makes carries every tool definition this server exposes — context your code, documents and conversation can't use, mostly for tools the agent never calls. You don't need them all in the window, and you don't have to pay for them.

QUICK ANSWER The Yaver MCP server's 645 tool definitions consume 54,408 tokens — 27% of a 200k context window, and 27× the median MCP server (2,038 tokens). A scoped grant exposing only the tools you use cuts that roughly in proportion.

MEASURED FROM SCHEMAS tiktoken o200k_base · rank #32 of 6,689 measured servers · refreshed every build Method →
// CONTEXT WINDOW SHARE

What that costs before your agent starts working.

Tool definitions are overhead: they occupy context on every request and compete with your code, documents and conversation history for the same window.

200K WINDOW 27%
1M WINDOW 5.4%

Corpus context: Yaver ranks #32 of 6,689 measured MCP servers by definition cost. The median is 2,038 tokens, p90 is 12,122, and the heaviest (Ainumbers Mcp Apps) is 269,012 — 135% of a 200k window on its own. New to this? See MCP token cost and context window in the glossary.

Token cost is one axis. See the risk picture across your whole stack →

// PER-TOOL BREAKDOWN

Where the 54,408 tokens go.

Each row is one tool definition as a tools/list entry — name, description and input schema — counted with o200k_base. Average: 84 tokens per tool.

ToolCategoryTokens% of server
yaver_ask_user Destructive 864 1.6%
project_new_quick Execute 628 1.2%
create_task Execute 594 1.1%
schedule_self Execute 524 1.0%
opencode_config_set Write 482 0.9%
wire_push Execute 449 0.8%
mobile_deploy_to_phone Execute 431 0.8%
yaver_ask Read 430 0.8%
guest_config Write 429 0.8%
browser_open Execute 409 0.8%
dev_environment_clone_start Execute 403 0.7%
dev_environment_clone_plan Read 402 0.7%
studio_permission_video Execute 385 0.7%
remote_dev_prepare Execute 364 0.7%
wireless_push Execute 347 0.6%
git_push_creds Write 333 0.6%
guest_invite Write 328 0.6%
project_self_host_create Write 318 0.6%
runner_auth_setup Execute 312 0.6%
fork_task Read 304 0.6%
sandbox_run Execute 299 0.5%
droid_input Execute 276 0.5%
mobile_hermes_reload Execute 272 0.5%
browser_interactive_start Execute 269 0.5%
android_app_query Execute 269 0.5%
yaver_lazy_setup Execute 263 0.5%
phone_project_push Write 248 0.5%
mobile_hermes_doctor Execute 239 0.4%
android_app_install Execute 239 0.4%
dns_add Write 234 0.4%
device_broadcast_command Execute 233 0.4%
studio_permission_prose Read 231 0.4%
device_voice_hints_set Write 230 0.4%
machine_roles Write 226 0.4%
yaver_managed_cloud_onboarding Financial 225 0.4%
wireless_pair_android Execute 222 0.4%
phone_project_design_patch Write 222 0.4%
runner_auth_credentials_import Write 218 0.4%
native_build Execute 217 0.4%
phone_project_runtime_deploy Execute 213 0.4%
yaver_self_host_onboarding Execute 206 0.4%
wireless_setup_android Execute 205 0.4%
schedule_task Execute 203 0.4%
git_oauth_start Write 201 0.4%
testkit_run Execute 201 0.4%
machine_doctor Read 201 0.4%
machine_onboarding_apply Write 200 0.4%
guest_leave Write 194 0.4%
session_transfer Execute 191 0.4%
ops Execute 187 0.3%
machine_onboarding_remove Destructive 186 0.3%
primary_auth Read 186 0.3%
feedback_create Write 183 0.3%
android_app_status Read 182 0.3%
git_member_invite Write 181 0.3%
runner_auth_browser_submit_callback Execute 181 0.3%
sandbox_config Write 180 0.3%
infra_power Execute 179 0.3%
runner_auth_set Write 179 0.3%
net_doctor Read 178 0.3%
vibe_preview_start Execute 174 0.3%
android_app_launch Execute 173 0.3%
project_runtime_apply Write 172 0.3%
sdk_token_create Write 171 0.3%
exec_command Execute 169 0.3%
gh_run Execute 169 0.3%
ssl_provision Execute 168 0.3%
vibe_preview_clip_record Execute 162 0.3%
web_search Read 162 0.3%
copilot_complete Execute 162 0.3%
mobile_project_build Execute 161 0.3%
guest_delete Destructive 160 0.3%
selenium_start Execute 160 0.3%
yaver_auth_start Execute 160 0.3%
yaver_help Read 155 0.3%
wireless_detect Read 154 0.3%
guest_accept Read 153 0.3%
yaver_auth_merge_start Write 153 0.3%
workspace_init Execute 152 0.3%
selenium_search Execute 151 0.3%
yaver_auth_wait Execute 150 0.3%
session_export Read 150 0.3%
glab_run Execute 145 0.3%
phone_project_import Write 143 0.3%
git_member_remove Destructive 142 0.3%
ops_plan Read 142 0.3%
yaver_auth_link_start Write 141 0.3%
git_members Read 141 0.3%
phone_project_export Read 138 0.3%
device_reauth_start Execute 137 0.3%
support_start Execute 136 0.2%
yaver_billing_checkout Financial 136 0.2%
cloud_deploy Execute 135 0.2%
device_reauth_wait Execute 135 0.2%
runner_status Read 132 0.2%
session_import Write 131 0.2%
yaver_auth_unlink Write 130 0.2%
search_files Read 130 0.2%
machine_repair Execute 127 0.2%
opencode_config_get Read 127 0.2%
set_ios_install_method Write 127 0.2%
testkit_self_heal_selector Execute 126 0.2%
phone_project_schema Write 125 0.2%
runner_model_probe Execute 123 0.2%
machine_roles_doctor Read 122 0.2%
sandbox_quickstart Execute 122 0.2%
yaver_auth_poll Execute 122 0.2%
publish_ci_dispatch Execute 122 0.2%
project_context Read 120 0.2%
wire_detect Read 120 0.2%
git_prs Read 119 0.2%
publish_run Execute 119 0.2%
phone_project_create Write 118 0.2%
publish_upload Write 118 0.2%
publish_submit Execute 116 0.2%
tunnel_add Write 115 0.2%
continue_task Execute 114 0.2%
git_issues Read 113 0.2%
git_oauth_status Read 112 0.2%
mobile_platform_matrix Read 112 0.2%
mobile_project_status Read 112 0.2%
browser_type Execute 112 0.2%
phone_project_promote Execute 112 0.2%
services_add Write 112 0.2%
runner_auth_browser_start Execute 111 0.2%
db_query Execute 111 0.2%
mobile_project_actions_audit Read 110 0.2%
companion_detect Read 106 0.2%
primary_projects Read 106 0.2%
vibe_preview_summaries Read 104 0.2%
wireless_connect_android Execute 103 0.2%
machine_remove Destructive 102 0.2%
infra_service_action Execute 102 0.2%
workspace_web_apps Read 102 0.2%
machine_onboarding_status Read 101 0.2%
search_content Read 101 0.2%
mobile_project_prepare Execute 101 0.2%
guest_revoke Destructive 100 0.2%
cloud_emu_start Execute 100 0.2%
proxy_add Write 100 0.2%
diagnose Execute 99 0.2%
git_info Read 99 0.2%
browser_extract_attribute Read 98 0.2%
github_pr_create Write 98 0.2%
pkg_install Execute 98 0.2%
monitor_add Write 97 0.2%
browser_wait Execute 96 0.2%
droid_status Read 96 0.2%
switch_plan Write 96 0.2%
droid_launch Execute 95 0.2%
git_branches Read 95 0.2%
http_request Execute 94 0.2%
config_set Write 94 0.2%
sourcemaps_resolve Read 94 0.2%
browser_evaluate Execute 93 0.2%
yaver_auth_link_wait Read 93 0.2%
device_reauth_status Read 93 0.2%
add_relay_server Write 93 0.2%
remote_provision Execute 91 0.2%
totp_enable_confirm Write 91 0.2%
github_workflow_run Execute 90 0.2%
run_tests Execute 90 0.2%
browser_select Execute 90 0.2%
device_primary_set Write 90 0.2%
web_preview_start Execute 89 0.2%
runner_auth_status Read 89 0.2%
totp_enable_begin Write 89 0.2%
yaver_auth_capabilities Read 88 0.2%
create_gist Write 88 0.2%
feedback_speak Read 88 0.2%
jobs_enqueue Execute 88 0.2%
totp_disable Write 88 0.2%
cloud_provision Read 87 0.2%
browser_scroll Execute 87 0.2%
init_project Write 87 0.2%
runner_queue_add Execute 87 0.2%
check_run Execute 86 0.2%
project_wizard_generate Write 86 0.2%
companion_up Execute 85 0.2%
go_pprof_cpu Execute 85 0.2%
change_password Write 85 0.2%
feedback_fix Write 85 0.2%
expose_start Execute 84 0.2%
yaver_auth_merge_wait Write 84 0.2%
domain_ddns_start Execute 83 0.2%
check_single Execute 83 0.2%
account_connect Write 83 0.2%
archive_create Write 83 0.2%
yaver_auth_factory_reset Destructive 82 0.2%
build_android Execute 82 0.2%
cloud_cli Execute 82 0.2%
phone_project_widget_list Read 82 0.2%
migrate_plan Write 82 0.2%
backend_start Execute 81 0.1%
browser_navigate Execute 81 0.1%
build_ios Execute 81 0.1%
oauth_client_create Write 81 0.1%
systemctl Execute 80 0.1%
yaver_onboard Read 80 0.1%
push_android Execute 80 0.1%
runner_attach Execute 80 0.1%
template_use Write 80 0.1%
vibe_preview_release Read 79 0.1%
browser_wait_navigation Execute 78 0.1%
browser_screenshot Read 78 0.1%
runner_detach Execute 78 0.1%
tree Read 78 0.1%
auth_dev_tokens Execute 77 0.1%
data_query Execute 77 0.1%
phone_project_list Read 77 0.1%
preview_create Execute 77 0.1%
push_ios Execute 77 0.1%
testkit_last_failure Read 76 0.1%
browser_extract_text Read 76 0.1%
get_task Read 76 0.1%
git_ci_status Read 76 0.1%
primary_status Read 76 0.1%
project_wizard_answer Read 76 0.1%
gitlab_mr_create Write 76 0.1%
docker_compose Execute 75 0.1%
acl_call_peer_tool Execute 75 0.1%
fake_data Read 75 0.1%
get_ios_install_method Read 75 0.1%
studio_job_status Read 75 0.1%
browser_click Execute 75 0.1%
domain_add Write 75 0.1%
remote_setup Execute 75 0.1%
switch_runner Write 75 0.1%
forgot_password Destructive 74 0.1%
lint Execute 74 0.1%
storage_presign Read 74 0.1%
tail_logs Read 74 0.1%
yaver_auth_status Read 74 0.1%
acl_add_peer Execute 74 0.1%
changelog Read 73 0.1%
format_code Read 73 0.1%
backend_collection_create Write 73 0.1%
error_resolve Write 73 0.1%
runner_auth_browser_submit_code Execute 73 0.1%
yaver_auth_list_identities Read 72 0.1%
browser_get_dom Read 71 0.1%
droid_frame Read 71 0.1%
droid_ui_texts Read 71 0.1%
yaver_health_deep Read 71 0.1%
type_check Execute 71 0.1%
dns_lookup Read 70 0.1%
primary_ping Read 70 0.1%
selenium_text Read 70 0.1%
service_action Execute 69 0.1%
browser_interactive_status Read 69 0.1%
docs_config Write 69 0.1%
runner_auth_browser_status Read 69 0.1%
runner_autorun Execute 69 0.1%
vibe_preview_clips Read 69 0.1%
yaver_billing_status Read 69 0.1%
auth_dev_users Write 69 0.1%
invite Write 69 0.1%
storage_upload Write 69 0.1%
services_start Execute 68 0.1%
appstore_status Read 68 0.1%
testkit_list_specs Read 68 0.1%
selenium_type Execute 68 0.1%
yaver_billing_manage Financial 68 0.1%
convex_run Execute 67 0.1%
github_prs Read 67 0.1%
git_log_advanced Read 67 0.1%
playstore_track Read 67 0.1%
vibe_preview_snapshot Read 67 0.1%
auth_oauth_setup Read 67 0.1%
cf_kv Write 67 0.1%
domain_setup Execute 67 0.1%
benchmark Execute 66 0.1%
gitignore Write 66 0.1%
jq Execute 66 0.1%
auth_oauth_save Write 66 0.1%
phone_project_seed Write 66 0.1%
git_stash Destructive 65 0.1%
publish_config_get Read 65 0.1%
workspace_scaffold Read 65 0.1%
browser_interactive_stop Execute 64 0.1%
data_update Write 64 0.1%
feedback_list Read 64 0.1%
github_issues Read 64 0.1%
hash Read 64 0.1%
port_scan Execute 64 0.1%
service_status Read 64 0.1%
cf_r2 Read 64 0.1%
gitlab_issue_create Write 64 0.1%
migrate_run Execute 64 0.1%
runner_auth_browser_cancel Execute 63 0.1%
convex_query Execute 63 0.1%
error_list Read 63 0.1%
license Write 63 0.1%
testkit_flake_report Read 63 0.1%
github_issue_create Write 63 0.1%
calculate Execute 62 0.1%
compiler_version Read 62 0.1%
docker_logs Read 62 0.1%
loc_count Read 62 0.1%
dns_remove Destructive 61 0.1%
data_browse Read 61 0.1%
db_migrate Execute 61 0.1%
release_rollout Write 61 0.1%
adb_command Execute 60 0.1%
auth_dev_start Execute 60 0.1%
models_run Execute 60 0.1%
companion_status Read 60 0.1%
convex_browse Read 60 0.1%
diff Read 60 0.1%
docker_prune Destructive 60 0.1%
list_tasks Read 60 0.1%
archive_extract Execute 60 0.1%
write_file Write 60 0.1%
docker_exec Execute 59 0.1%
base64 Read 59 0.1%
data_insert Write 59 0.1%
models_pull Read 59 0.1%
relay_test Read 59 0.1%
services_logs Read 59 0.1%
ssl_check Read 59 0.1%
tunnel_test Read 59 0.1%
oauth_user_create Write 59 0.1%
switch_rollback Destructive 59 0.1%
selenium_navigate Execute 58 0.1%
xcode_build Execute 58 0.1%
git_blame_file Read 58 0.1%
git_stats Read 58 0.1%
ops_verbs Read 58 0.1%
ping Execute 58 0.1%
ps_aux Read 58 0.1%
regex_test Execute 58 0.1%
release_list Read 58 0.1%
totp_status Read 58 0.1%
backend_users Write 58 0.1%
switch_run Execute 58 0.1%
pytest_suite Execute 57 0.1%
run_shortcut Execute 57 0.1%
cf_d1 Execute 57 0.1%
cloud_logs Read 57 0.1%
db_schema Read 57 0.1%
process_kill Read 57 0.1%
auth_oauth_migrate Read 57 0.1%
chat_reply Write 57 0.1%
selenium_click Execute 57 0.1%
companion_down Destructive 56 0.1%
yaver_auth_logout Destructive 56 0.1%
supabase_deploy Execute 56 0.1%
yaver_doctor Execute 56 0.1%
feedback_show Read 56 0.1%
op_get Read 56 0.1%
password_gen Read 56 0.1%
sourcemaps_delete Destructive 55 0.1%
convex_mutate Execute 55 0.1%
go_pprof_heap Execute 55 0.1%
app_review_check Read 55 0.1%
backend_records Read 55 0.1%
companion_cron_list Read 55 0.1%
db_backup Read 55 0.1%
release_rollback Destructive 55 0.1%
convex_action Execute 54 0.1%
flutter_build Execute 54 0.1%
npm_run_script Execute 54 0.1%
device_primary_get Read 54 0.1%
log_search Read 54 0.1%
read_file Read 54 0.1%
selenium_screenshot Read 54 0.1%
selenium_snapshot Read 54 0.1%
selenium_status Read 54 0.1%
xcode_test Execute 54 0.1%
yaver_logs Read 54 0.1%
tunnel_remove Destructive 53 0.1%
preview_stop_serving Execute 53 0.1%
phone_project_design_get Read 53 0.1%
playstore_status Read 53 0.1%
screenshot Read 53 0.1%
docker_build Execute 52 0.1%
domain_check Read 52 0.1%
go_module_info Read 52 0.1%
convex_install_helper Write 52 0.1%
db_restore Destructive 52 0.1%
notify Write 52 0.1%
selenium_close Execute 52 0.1%
cloud_emu_stop Execute 51 0.1%
gradle_build Execute 51 0.1%
project_wizard_start Write 51 0.1%
services_stop Execute 51 0.1%
console_machines Read 51 0.1%
data_delete Destructive 51 0.1%
docker_inspect Read 51 0.1%
http_status Read 51 0.1%
phone_project_get Read 51 0.1%
session_list Read 51 0.1%
chat_history Read 50 0.1%
env_read Read 50 0.1%
find_large_files Read 50 0.1%
go_test_suite Execute 50 0.1%
storage_list Read 50 0.1%
set_work_dir Execute 50 0.1%
remote_destroy Destructive 49 0.1%
guest_usage Read 49 0.1%
project_runtime Read 49 0.1%
remove_relay_server Destructive 48 0.1%
remote_exec Execute 48 0.1%
vibe_preview_stop Execute 48 0.1%
acl_list_peer_tools Read 48 0.1%
list_machines Read 48 0.1%
yaver_status Read 48 0.1%
relay_set_password Write 48 0.1%
db_reset Destructive 47 0.1%
eas_build Execute 47 0.1%
storage_start Execute 47 0.1%
gitlab_mrs Read 47 0.1%
jwt_decode Read 47 0.1%
phone_project_templates Read 47 0.1%
browser_close Execute 47 0.1%
migrate_rollback Destructive 47 0.1%
publish_status Read 47 0.1%
cancel_schedule Destructive 46 0.1%
du Read 46 0.1%
github_ci_status Read 46 0.1%
go_mod_why Read 46 0.1%
infra_summary Read 46 0.1%
npm_info Read 46 0.1%
system_info Read 46 0.1%
acl_remove_peer Destructive 45 0.1%
cloud_destroy Destructive 45 0.1%
cloud_scale Financial 45 0.1%
convex_local_status Read 45 0.1%
docker_cp Write 45 0.1%
env_list Read 45 0.1%
epoch Read 45 0.1%
http_timing Read 45 0.1%
port_check Read 45 0.1%
simulator_screenshot Read 45 0.1%
studio_list Read 45 0.1%
workspace_status Read 45 0.1%
phone_project_delete Destructive 44 0.1%
stop_task Execute 44 0.1%
supabase_db Execute 44 0.1%
db_studio Execute 44 0.1%
template_list Read 44 0.1%
auth_dev_setup Read 44 0.1%
backend_setup Read 44 0.1%
clipboard_write Write 44 0.1%
github_stars Read 43 0.1%
list_directory Read 43 0.1%
network_connections Read 43 0.1%
sourcemaps_list Read 43 0.1%
eas_submit Execute 43 0.1%
open_url Execute 43 0.1%
simulator_boot Execute 43 0.1%
services_remove Destructive 42 0.1%
preview_stop Execute 42 0.1%
cloud_emu_config Read 42 0.1%
convex_tables Read 42 0.1%
github_badge Read 42 0.1%
qr_code Read 42 0.1%
vibe_preview_status Read 42 0.1%
yaver_devices Read 42 0.1%
migrate_verify Execute 42 0.1%
docker_rmi Destructive 41 0.1%
proxy_remove Destructive 41 0.1%
expose_stop Execute 41 0.1%
backend_schema Read 41 0.1%
eslint_check Execute 41 0.1%
git_reflog Read 41 0.1%
list_runners Read 41 0.1%
prettier_check Write 41 0.1%
process_list Read 41 0.1%
support_status Read 41 0.1%
support_stop Read 41 0.1%
testflight_builds Read 41 0.1%
workspace_list Read 41 0.1%
storage_bucket_create Write 41 0.1%
docker_rm Destructive 40 0.1%
dev_environment_clone_status Read 40 0.1%
domain_detect_ip Read 40 0.1%
npm_search Read 40 0.1%
convex_export Read 40 0.1%
models_remove Destructive 39 0.1%
auth_oauth_test Execute 39 0.1%
copilot_models Read 39 0.1%
disk_usage Read 39 0.1%
domain_dns_check Read 39 0.1%
github_repo_info Read 39 0.1%
remote_status Read 39 0.1%
runner_queue_list Read 39 0.1%
runner_queue_clear Destructive 38 0.1%
cloud_status Read 38 0.1%
gitlab_issues Read 38 0.1%
list_schedules Read 38 0.1%
monitor_remove Destructive 38 0.1%
storage_config Read 38 0.1%
tsc_check Execute 38 0.1%
feedback_delete Destructive 37 0.1%
get_config Read 37 0.1%
get_system_info Read 37 0.1%
services_status Read 37 0.1%
commit_message Read 37 0.1%
db_generate Write 37 0.1%
switch_cost Read 37 0.1%
make_run Execute 36 0.1%
account_status Read 36 0.1%
acl_list_peers Read 36 0.1%
chat_conversations Read 36 0.1%
docs_search Read 36 0.1%
get_info Read 36 0.1%
jobs_retry Execute 36 0.1%
monitor_list Read 36 0.1%
npm_versions Read 36 0.1%
sandbox_status Read 36 0.1%
account_disconnect Write 36 0.1%
docker_push Execute 36 0.1%
jobs_cancel Destructive 35 0.1%
go_build Execute 35 0.1%
browser_sessions Read 35 0.1%
cloud_emu_status Read 35 0.1%
convex_schema Read 35 0.1%
docker_top Read 35 0.1%
go_module_versions Read 35 0.1%
oauth_user_list Read 35 0.1%
storage_status Read 35 0.1%
tree_dir Read 35 0.1%
docker_start Execute 34 0.1%
docker_stop Execute 34 0.1%
proxy_start Execute 34 0.1%
backend_backup Read 34 0.1%
backend_status Read 34 0.1%
db_status Read 34 0.1%
docker_history Read 34 0.1%
docker_pull Execute 34 0.1%
guest_list Read 34 0.1%
models_status Read 34 0.1%
proxy_status Read 34 0.1%
yaver_ping Read 34 0.1%
db_push Destructive 34 0.1%
migrate_targets Read 34 0.1%
switch_history Read 34 0.1%
docker_restart Execute 33 0.1%
adb_screenshot Read 33 0.1%
auth_dev_status Read 33 0.1%
data_tables Read 33 0.1%
docker_port Read 33 0.1%
gitlab_pipelines Read 33 0.1%
go_vulncheck Read 33 0.1%
models_recommend Read 33 0.1%
oauth_client_list Read 33 0.1%
dns_flush Destructive 32 0.1%
web_preview_reload Execute 32 0.1%
cloud_plans Read 32 0.1%
gitlab_ci Read 32 0.1%
lines_of_code Read 32 0.1%
list_shortcuts Read 32 0.1%
pod_outdated Read 32 0.1%
switch_cleanup Destructive 32 0.1%
convex_deploy Execute 31 0.1%
auth_oauth_list Read 31 0.1%
convex_logs Read 31 0.1%
cpu_info Read 31 0.1%
git_shortlog Read 31 0.1%
go_mod_graph Read 31 0.1%
go_mod_tidy Read 31 0.1%
network_interfaces Read 31 0.1%
supabase_functions Read 31 0.1%
supabase_migrations Read 31 0.1%
supabase_status Read 31 0.1%
android_lint Execute 30 0.1%
auth_log Read 30 0.1%
backend_collections Read 30 0.1%
cf_pages Read 30 0.1%
cf_workers Read 30 0.1%
cloud_redeploy Execute 30 0.1%
github_releases Read 30 0.1%
go_vet_check Execute 30 0.1%
gradle_test Execute 30 0.1%
op_list Read 30 0.1%
prisma_status Read 30 0.1%
drizzle_generate Execute 30 0.1%
drizzle_push Execute 30 0.1%
prisma_push Execute 30 0.1%
go_staticcheck Execute 29 0.1%
models_serve Execute 29 0.1%
domain_list Read 29 0.1%
domain_ssl_status Read 29 0.1%
emulators Read 29 0.1%
expose_list Read 29 0.1%
expo_status Read 29 0.1%
git_remotes Read 29 0.1%
go_fmt_check Read 29 0.1%
make_targets Read 29 0.1%
models_ps Read 29 0.1%
prisma_generate Execute 29 0.1%
publish_list Read 29 0.1%
relay_clear_password Destructive 28 0.1%
yaver_clear_logs Destructive 28 0.1%
flutter_doctor Execute 28 0.1%
make_clean Execute 28 0.1%
web_preview_stop Execute 28 0.1%
df Read 28 0.1%
dns_list Read 28 0.1%
docker_stats Read 28 0.1%
flutter_test Execute 28 0.1%
jobs_list Read 28 0.1%
list_projects Read 28 0.1%
load_average Read 28 0.1%
models_list Read 28 0.1%
remote_cost Read 28 0.1%
selenium_sessions Read 28 0.1%
tunnel_list Read 28 0.1%
go_generate Execute 28 0.1%
pod_install Execute 28 0.1%
auth_dev_stop Execute 27 0.0%
acl_health Read 27 0.0%
adb_devices Read 27 0.0%
docker_images Read 27 0.0%
docs_list Read 27 0.0%
get_relay_config Read 27 0.0%
git_tags Read 27 0.0%
listen_ports Read 27 0.0%
service_list Read 27 0.0%
storage_bucket_list Read 27 0.0%
uname Read 27 0.0%
migrate_status Read 27 0.0%
cloud_backup Execute 26 0.0%
preview_stop_all Execute 26 0.0%
proxy_stop Execute 26 0.0%
storage_stop Execute 26 0.0%
clipboard_read Read 26 0.0%
docker_disk_usage Read 26 0.0%
free_memory Read 26 0.0%
hostname_info Read 26 0.0%
preview_list Read 26 0.0%
proxy_list Read 26 0.0%
simulators Read 26 0.0%
uuid Read 26 0.0%
wifi_info Read 26 0.0%
switch_targets Read 26 0.0%
backend_stop Execute 25 0.0%
db_seed Execute 25 0.0%
docker_networks Read 25 0.0%
docker_ps Read 25 0.0%
docker_volumes Read 25 0.0%
public_ip Read 25 0.0%
account_list Read 24 0.0%
ps_tree Read 24 0.0%
// CUT THE COST

Your agent uses a handful of these tools. It pays for all 645.

You don't need all 645 of those definitions in the window. PolicyLayer is an MCP gateway that sits in front of Yaver: only the tools you grant are exposed to the agent, the rest never load. A smaller window means a sharper agent — less noise when it picks a tool — and every request costs less:

Grant scopeDefinition costReduction
All 645 tools (no gateway) 54,408 tokens —
3 granted tools ~253 tokens −100%
5 granted tools ~422 tokens −99%
10 granted tools ~844 tokens −98%

The risk dividend: 45 of these 645 tools are critical-risk (destructive or financial) and cost 3,683 tokens (7% of the definition load). Block them — the recommended starter policy — and you reclaim that context before tuning anything else.

  1. Create a free account and register Yaver — nothing to install.
  2. Grant only the tools you use — ungranted definitions never enter the context window.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
CUT YAVER TOKEN COST →

Instant setup, no code required.

Model your own stack in the token-cost calculator, or see the Yaver policy for what a sensible grant looks like.

//FAQ

Yaver token-cost questions.

How many tokens does the Yaver MCP server use?+

Its 645 tool definitions total 54,408 tokens — 27% of a 200k context window — measured with tiktoken o200k_base over the serialised tools/list payload. Exact counts vary slightly by client and model.

Why does Yaver consume tokens before I send a message?+

MCP clients load every connected server's tool definitions — name, description, and input schema — into the model's context so it knows what it can call. That payload is charged against your context window on every request, whether or not a tool is used.

How do I reduce Yaver's token usage?+

Expose fewer tools. A PolicyLayer grant scopes Yaver to only the tools you allow — ungranted definitions are filtered out of the tool list, so they never enter the context window. A grant of 3 typical tools costs roughly 253 tokens, a 100% reduction.

Does deferred tool loading fix this?+

Partially, in some clients. Claude Code defers MCP tool schemas behind a tool-search step by default, and VS Code has experimental grouping — but you still pay tokens per search and reload, and Cursor, Windsurf and Gemini CLI load definitions upfront. Reducing the exposed tool set cuts the cost in every client.

// METHOD & REVIEW

How these numbers were measured.

01
Serialisation

Each tool is serialised as a tools/list entry — name, description, input schema — from the schemas in the PolicyLayer scan database. Clients differ slightly in framing, so treat counts as close estimates.

02
Tokeniser

tiktoken o200k_base (GPT-4o/o-series). Anthropic's current tokeniser isn't published, so Claude's exact counts will differ; for English text and JSON schemas the totals are close enough to treat these as estimates.

03
Deferred loading

Some clients now defer schema loading (Claude Code's tool search; VS Code experimental grouping). You still pay per search and reload — and Cursor, Windsurf and Gemini CLI load everything upfront.

Computed 17-08-2026 from the PolicyLayer scan database over all 645 catalogued Yaver tools. Counts refresh with every site build.

THIS SERVER: All Yaver tools Yaver policy Token-cost calculator

Expose only the tools you use — the rest never enter your context.

A PolicyLayer grant scopes Yaver to the tools you actually allow. Ungranted definitions never load, and every call that does run is checked against policy first.

CUT YAVER TOKEN COST →

Instant setup, no code required.

46,500+ MCP servers and 515,000+ tools scanned and risk-classified.

// GET IN TOUCH

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