// MCP TOKEN COST

The Breakpoint MCP server costs 49,907 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 Breakpoint MCP server's 274 tool definitions consume 49,907 tokens — 25% of a 200k context window, and 26× the median MCP server (1,904 tokens). A scoped grant exposing only the tools you use cuts that roughly in proportion.

MEASURED FROM SCHEMAS tiktoken o200k_base · rank #44 of 8,383 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 25%

1M WINDOW 5.0%

Corpus context: Breakpoint ranks #44 of 8,383 measured MCP servers by definition cost. The median is 1,904 tokens, p90 is 12,637, and the heaviest (Ainumbers Mcp Apps) is 332,228 — 166% 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 49,907 tokens go.

Each row is one tool definition as a tools/list entry — name, description and input schema — counted with o200k_base. Average: 182 tokens per tool.

Tool	Category	Tokens	% of server
card_template_create	Write	1,014	2.0%
board_create	Write	844	1.7%
piece_template_create	Write	655	1.3%
interact_add_drop_zone	Write	624	1.3%
board_tile_create	Write	601	1.2%
card_deck_from_table	Write	578	1.2%
runtime_peers_digest	Read	535	1.1%
interact_make_draggable	Write	532	1.1%
piece_instance	Write	483	1.0%
card_hand_layout	Write	461	0.9%
board_tile_place	Write	434	0.9%
piece_move	Write	398	0.8%
collisionshape_add	Write	388	0.8%
card_set_face	Write	372	0.7%
dbg_set_breakpoints	Write	369	0.7%
asset_gen_placeholder	Write	363	0.7%
inputmap_add_event	Write	348	0.7%
joint_create	Write	341	0.7%
dbg_data_breakpoints	Execute	334	0.7%
cs_dbg_launch	Execute	333	0.7%
runtime_seed_rng	Execute	327	0.7%
card_instance	Write	326	0.7%
particles_set_process_material	Write	322	0.6%
collisionpolygon_add	Write	318	0.6%
mp_wire_rpc	Destructive	318	0.6%
anim_statemachine_add_transition	Write	315	0.6%
audio_player_create	Write	307	0.6%
runtime_await_condition	Read	306	0.6%
cs_code_action	Read	303	0.6%
runtime_screenshot_diff	Read	295	0.6%
tileset_add_source	Write	290	0.6%
tileset_set_tile_collision	Write	286	0.6%
project_search	Read	279	0.6%
mp_add_synchronizer	Write	263	0.5%
cs_dbg_set_variable	Execute	262	0.5%
dbg_goto	Execute	258	0.5%
dbg_launch	Execute	257	0.5%
runtime_assert_screen_text	Read	257	0.5%
mp_setup_enet_peer	Write	257	0.5%
particles_create	Write	254	0.5%
mp_scaffold_lobby	Write	253	0.5%
gd_code_action	Read	252	0.5%
anim_statemachine_add_state	Write	249	0.5%
board_place	Write	248	0.5%
runtime_assert_perf	Read	244	0.5%
cs_dbg_set_breakpoints	Execute	244	0.5%
physics_set_gravity	Write	244	0.5%
runtime_node_add	Execute	242	0.5%
leaderboard_scaffold	Write	241	0.5%
cs_dbg_restart	Execute	240	0.5%
docs_search	Read	239	0.5%
area_set_gravity	Write	237	0.5%
navagent_configure	Write	237	0.5%
cs_dbg_watch	Read	236	0.5%
tilemap_set_cells_rect	Write	233	0.5%
dbg_watch	Read	232	0.5%
runtime_inject_input	Execute	231	0.5%
anim_tree_add_node	Write	227	0.5%
runtime_anim_play	Execute	227	0.5%
tileset_add_tile	Write	226	0.5%
dbg_set_variable	Execute	225	0.5%
anim_tree_create	Write	223	0.4%
body_set_physics_material	Write	223	0.4%
find_symbol	Read	222	0.4%
theme_set_color	Write	222	0.4%
body_create	Write	220	0.4%
tilemap_set_cell	Write	219	0.4%
environment_create	Write	218	0.4%
cs_dbg_set_exception_breakpoints	Execute	217	0.4%
runtime_state_digest	Read	216	0.4%
control_set_layout_preset	Write	216	0.4%
cloudsave_scaffold	Write	215	0.4%
gd_call_hierarchy	Read	214	0.4%
runtime_step_frames	Execute	213	0.4%
dbg_set_exception_breakpoints	Execute	213	0.4%
mp_setup_webrtc_peer	Write	213	0.4%
auth_scaffold	Write	211	0.4%
mp_add_spawner	Write	210	0.4%
find_usages	Read	206	0.4%
vcs_stash	Destructive	204	0.4%
csg_create	Write	203	0.4%
theme_set_stylebox	Write	203	0.4%
cs_rename	Write	202	0.4%
dbg_restart	Execute	201	0.4%
control_create	Write	201	0.4%
runtime_assert_node_state	Read	200	0.4%
rigidbody_set_properties	Write	197	0.4%
godot_run_project	Execute	195	0.4%
runtime_time_scale	Execute	195	0.4%
anim_insert_key	Write	195	0.4%
anim_add_track	Write	193	0.4%
audio_bus_add_effect	Write	193	0.4%
project_add_autoload	Write	193	0.4%
gd_rename	Destructive	190	0.4%
project_add_export_preset	Write	190	0.4%
theme_set_font	Write	190	0.4%
resource_create	Write	189	0.4%
mesh_set_surface_material	Write	187	0.4%
theme_set_constant	Write	187	0.4%
runtime_assert_scene_structure	Read	185	0.4%
control_set_size_flags	Write	183	0.4%
godot_export	Execute	181	0.4%
primitive_mesh_create	Write	181	0.4%
resource_save	Destructive	179	0.4%
signal_connect	Write	179	0.4%
runtime_anim_stop	Execute	177	0.4%
control_set_anchors	Write	177	0.4%
inputmap_add_action	Write	177	0.4%
resource_set_import_settings	Destructive	177	0.4%
tileset_create	Write	175	0.4%
gd_formatting	Read	174	0.3%
scene_new	Write	172	0.3%
light_create	Write	171	0.3%
environment_set_sky	Write	169	0.3%
editorsettings_get_set	Write	166	0.3%
node_set_property	Write	166	0.3%
joint_set_bodies	Write	165	0.3%
shadermaterial_create	Write	165	0.3%
tilemaplayer_create	Write	165	0.3%
class_reference	Read	164	0.3%
vcs_show	Read	163	0.3%
container_add_child	Write	163	0.3%
node_set_editable_instance	Write	163	0.3%
mp_set_authority	Write	162	0.3%
signal_emit	Execute	162	0.3%
example_snippet	Read	161	0.3%
gd_document_color	Read	161	0.3%
audio_bus_add	Write	158	0.3%
meshinstance_create	Write	157	0.3%
vcs_blame	Read	156	0.3%
gd_document_highlight	Read	156	0.3%
navregion_create	Write	156	0.3%
resource_duplicate	Write	156	0.3%
area_set_monitoring	Write	155	0.3%
runtime_set_property	Write	154	0.3%
scene_pack	Write	154	0.3%
node_instantiate_scene	Write	153	0.3%
vcs_restore	Destructive	152	0.3%
runtime_get_log	Read	151	0.3%
particles_set_texture	Write	150	0.3%
shader_create	Write	150	0.3%
signal_add_user_signal	Write	150	0.3%
node_find	Read	149	0.3%
gd_declaration	Read	149	0.3%
project_set_main_scene	Write	149	0.3%
shadermaterial_set_param	Write	149	0.3%
vcs_branch_create	Write	149	0.3%
filesystem_move	Destructive	148	0.3%
runtime_node_remove	Destructive	147	0.3%
resource_set_property	Write	147	0.3%
vcs_diff	Read	145	0.3%
gd_type_definition	Read	144	0.3%
project_set_setting	Write	143	0.3%
runtime_peer_stop	Destructive	142	0.3%
gd_semantic_tokens	Read	141	0.3%
audio_set_bus_layout	Write	141	0.3%
node_add	Write	139	0.3%
anim_delete	Destructive	137	0.3%
inputmap_erase_action	Destructive	137	0.3%
camera_create	Write	137	0.3%
runtime_emit_signal	Execute	136	0.3%
anim_remove_key	Destructive	135	0.3%
gd_implementation	Read	135	0.3%
signal_disconnect	Write	135	0.3%
audio_set_stream	Write	134	0.3%
gd_signature_help	Read	133	0.3%
godot_output	Read	133	0.3%
cs_references	Read	133	0.3%
project_remove_autoload	Destructive	132	0.3%
runtime_anim_get_state	Read	132	0.3%
shadermaterial_set_shader	Write	132	0.3%
tilemap_get_cell	Read	131	0.3%
editor_undo	Write	131	0.3%
vcs_add	Write	131	0.3%
runtime_get_monitors	Read	130	0.3%
vcs_log	Read	130	0.3%
anim_create	Write	129	0.3%
audio_bus_set_volume	Write	128	0.3%
body_set_collision_mask	Write	128	0.3%
particles_set_lifetime	Write	128	0.3%
cs_signature_help	Read	127	0.3%
particles_set_amount	Write	127	0.3%
cs_workspace_symbols	Read	126	0.3%
body_set_collision_layer	Write	126	0.3%
control_set_theme	Write	126	0.3%
anim_get_track_keys	Read	124	0.2%
cs_diagnostics	Read	124	0.2%
gd_references	Read	124	0.2%
theme_create	Write	124	0.2%
anim_set_loop	Write	123	0.2%
shader_set_code	Destructive	123	0.2%
anim_set_length	Write	122	0.2%
cs_hover	Read	121	0.2%
node_set_owner	Write	121	0.2%
gd_workspace_symbols	Read	119	0.2%
particles_set_emitting	Write	119	0.2%
editor_redo	Write	118	0.2%
node_change_type	Write	118	0.2%
node_reparent	Write	118	0.2%
scene_save_as	Write	117	0.2%
cs_definition	Read	116	0.2%
dbg_step	Execute	116	0.2%
scene_close	Destructive	116	0.2%
gd_folding_ranges	Read	115	0.2%
runtime_get_tree	Read	115	0.2%
runtime_get_property	Read	114	0.2%
cs_completion	Write	114	0.2%
vcs_commit	Write	113	0.2%
anim_player_create	Write	112	0.2%
node_move_child	Write	112	0.2%
gd_document_link	Read	111	0.2%
screenshot_editor	Read	111	0.2%
gd_diagnostics	Read	111	0.2%
cs_dbg_attach	Execute	108	0.2%
gd_completion	Read	108	0.2%
scene_reload	Destructive	108	0.2%
gd_definition	Read	107	0.2%
godot_import	Execute	107	0.2%
vcs_switch	Execute	107	0.2%
classdb_get_class	Read	106	0.2%
node_duplicate	Write	105	0.2%
node_delete	Destructive	104	0.2%
signal_list_connections	Read	104	0.2%
cs_dbg_step	Execute	104	0.2%
gd_hover	Read	102	0.2%
resource_get_import_settings	Read	98	0.2%
resource_get_property	Read	95	0.2%
runtime_screenshot	Read	94	0.2%
node_add_to_group	Write	94	0.2%
node_get_property	Read	93	0.2%
project_list_settings	Read	93	0.2%
vcs_branch_list	Read	93	0.2%
node_remove_from_group	Write	92	0.2%
vcs_status	Read	92	0.2%
node_list_properties	Read	91	0.2%
tilemap_clear	Destructive	90	0.2%
node_get_path	Read	90	0.2%
test_list	Read	90	0.2%
dbg_attach	Execute	86	0.2%
node_rename	Write	85	0.2%
node_get_children	Read	84	0.2%
scene_get_tree	Read	83	0.2%
anim_list	Read	82	0.2%
cs_dbg_variables	Read	82	0.2%
filesystem_list	Read	82	0.2%
filesystem_create_dir	Write	82	0.2%
dbg_variables	Read	80	0.2%
cs_dbg_scopes	Read	80	0.2%
scene_get_dependencies	Read	78	0.2%
signal_list	Read	78	0.2%
cs_dbg_stack_trace	Read	78	0.2%
dbg_scopes	Read	78	0.2%
scene_open	Write	78	0.2%
selection_set	Write	78	0.2%
resource_load	Read	77	0.2%
cs_document_symbols	Read	76	0.2%
test_detect	Read	75	0.2%
dbg_stack_trace	Read	75	0.2%
project_get_setting	Read	74	0.1%
godot_stop	Execute	73	0.1%
gd_document_symbols	Read	72	0.1%
cs_dbg_continue	Execute	72	0.1%
node_list_groups	Read	71	0.1%
dbg_continue	Execute	71	0.1%
inputmap_list	Read	64	0.1%
scene_list_open	Read	64	0.1%
godot_launch_editor	Execute	61	0.1%
filesystem_scan	Execute	61	0.1%
project_get_info	Read	55	0.1%
editor_get_state	Read	53	0.1%
editor_ping	Read	49	0.1%
selection_get	Read	47	0.1%
godot_version	Read	47	0.1%
scene_save	Write	45	0.1%

// CUT THE COST

Your agent uses a handful of these tools. It pays for all 274.

You don't need all 274 of those definitions in the window. PolicyLayer is an MCP gateway that sits in front of Breakpoint: 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 scope	Definition cost	Reduction
All 274 tools (no gateway)	49,907 tokens	—
3 granted tools	~546 tokens	−99%
5 granted tools	~911 tokens	−98%
10 granted tools	~1,821 tokens	−96%

The risk dividend: 18 of these 274 tools are critical-risk (destructive or financial) and cost 2,739 tokens (5% of the definition load). Block them — the recommended starter policy — and you reclaim that context before tuning anything else.

Create a free account and register Breakpoint — nothing to install.
Grant only the tools you use — ungranted definitions never enter the context window.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CUT BREAKPOINT TOKEN COST →

Instant setup, no code required.

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

//FAQ

Breakpoint token-cost questions.

How many tokens does the Breakpoint MCP server use?+

Its 274 tool definitions total 49,907 tokens — 25% 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 Breakpoint 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 Breakpoint's token usage?+

Expose fewer tools. A PolicyLayer grant scopes Breakpoint 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 546 tokens, a 99% 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 07-09-2026 from the PolicyLayer scan database over all 274 catalogued Breakpoint tools. Counts refresh with every site build.