# compute_combined_services_trench Paid tier only. Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT — sign up at https://civilquants.com/pricing or use the free-tier alternative compute_manhole. Shared utility trench carrying multiple services side by side, each at its own cover depth (water, gas, electricity, telecoms) per NJUG Volume 1. One excavation envelope sized from the services, one disposal, one backfill column, with per-service lane-width bedding, surround, pipe/duct, and warning tape. Renders through CESMM4 Class I, NRM2 Group 41, MMHW Series 1300 and SMM7 Group T for the services, with the shared envelope routing through the existing earthworks/drainage handlers. Example params: trench_length_m=50 m (1–2000), service_spacing_mm=100 mm (50–500), working_space_below_bed_mm=100 mm (0–500). Example call: {"params": {"trench_length_m": 50, "service_spacing_mm": 100, "working_space_below_bed_mm": 100}, "standard": "MMHW"}. Omitted parameters use sensible engineering defaults. Pass deliverables=["xlsx","dxf","pdf"] (any subset) to also receive one-shot download URLs in the same call: Excel BoQ (both tiers, watermarked free) plus the dimensioned DXF (CAD) and PDF drawing sheets (paid tier). Agent View of the PolicyLayer registry record for `compute_combined_services_trench`. HTML page: https://policylayer.com/tools/com-civilquants-civilquants/compute-combined-services-trench ## Facts - Tool: `compute_combined_services_trench` - Server: Civilquants (`https://api.civilquants.com/mcp`) — https://policylayer.com/tools/com-civilquants-civilquants.md - Homepage: https://github.com/https://api.civilquants.com/mcp - Risk category: Execute (High risk) - Registry record: grade F, identity unverified - Server auth posture: open - Server rate-limited: no - Parameters: 4 (1 required) - Recommended policy verdict: Rate-limited ## Parameters | Parameter | Type | Required | Description | | --- | --- | --- | --- | | `params` | object | yes | | | `standard` | string | no | | | `output_mode` | string | no | | | `deliverables` | object | no | | Parameters from the server's own tool schema. ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "compute_combined_services_trench", "arguments": { "params": {} } } } ``` ## Why compute_combined_services_trench is rated High This tool executes a parametric computation engine that takes service parameters and generates detailed construction estimates and BoQ outputs. While it does not modify persistent state or delete data, it runs a non-trivial algorithm whose output (cost estimates, material quantities) directly informs financial decisions in civil engineering projects. From the tool's own definition: "'Calling this without an authenticated CivilQuants account returns TIER_INSUFFICIENT' indicates the tool performs paid computations that require account-gated access; 'Renders through CESMM4 Class I, NRM2 Group 41...' shows it generates Bills of Quantities…" Risk signals: High parameter count (26 properties) ## Use case AI agents invoke compute_combined_services_trench to trigger actions in Civilquants. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Civilquants: ```json { "version": "1", "default": "deny", "tools": { "compute_combined_services_trench": { "limits": [ { "counter": "compute_combined_services_trench_rate", "window": "minute", "max": 10, "scope": "grant" } ] } } } ``` ## Other tools on Civilquants (55) - `compute_box_culvert` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-box-culvert.md - `compute_connection_to_existing` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-connection-to-existing.md - `compute_ditch` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-ditch.md - `compute_embankment_cross_section` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-embankment-cross-section.md - `compute_end_area_earthworks` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-end-area-earthworks.md - `compute_gabion_wall` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-gabion-wall.md - `compute_headwall_attenuation_outlet` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-headwall-attenuation-outlet.md - `compute_highway_drainage_channel` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-highway-drainage-channel.md - `compute_lighting_column` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-lighting-column.md - `compute_multi_section_assembly` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-multi-section-assembly.md - `compute_pad_foundation` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-pad-foundation.md - `compute_parapet` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-parapet.md - `compute_pipe_bedding` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-pipe-bedding.md - `compute_reinforced_soil_wall` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-reinforced-soil-wall.md - `compute_road_marking` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-road-marking.md - `compute_single_service_run` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-single-service-run.md - `compute_soakaway` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-soakaway.md - `compute_soil_nailed_slope` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-soil-nailed-slope.md - `compute_traffic_sign` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-traffic-sign.md - `compute_utility_chamber` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-utility-chamber.md - `compute_utility_kiosk_base` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/compute-utility-kiosk-base.md - `recompute_project` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/recompute-project.md - `render_skill_report` — Execute — https://policylayer.com/tools/com-civilquants-civilquants/render-skill-report.md - `compute_attenuation_tank` — Read — https://policylayer.com/tools/com-civilquants-civilquants/compute-attenuation-tank.md - `compute_bored_pile_wall` — Read — https://policylayer.com/tools/com-civilquants-civilquants/compute-bored-pile-wall.md - `compute_cantilever_wall` — Read — https://policylayer.com/tools/com-civilquants-civilquants/compute-cantilever-wall.md - `compute_carrier_pipe_run` — Read — https://policylayer.com/tools/com-civilquants-civilquants/compute-carrier-pipe-run.md - `compute_catchpit` — Read — https://policylayer.com/tools/com-civilquants-civilquants/compute-catchpit.md - `compute_edge_drain` — Read — https://policylayer.com/tools/com-civilquants-civilquants/compute-edge-drain.md - `compute_flexible_pavement` — Read — https://policylayer.com/tools/com-civilquants-civilquants/compute-flexible-pavement.md - …and 25 more: https://policylayer.com/tools/com-civilquants-civilquants.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=com-civilquants-civilquants · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/com-civilquants-civilquants