compute_manhole_precast
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. Fully monolithic precast concrete circular manhole comprising factory-cast base + bottom ring + integr...
This record as markdown: /tools/com-civilquants-civilquants/compute-manhole-precast.md
What compute_manhole_precast does on Civilquants
AI agents call compute_manhole_precast to retrieve information from Civilquants without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
params | object | Yes | Parameter form for a fully monolithic precast concrete manhole. Catalogue-driven: pick a ``size`` and the chamber's nominal dimensions, masses, and ring height |
standard | string | — | |
output_mode | string | — | |
deliverables | object | — |
Parameters from the server's own tool schema.
Why compute_manhole_precast is rated Low
The tool appears to perform a calculation/estimation of quantities and costs for a precast concrete manhole, which is a read/query-style operation returning computed data. It does not create, modify, delete, or execute code; it generates an estimate. Severity is low as misuse would at worst produce an incorrect quantity estimate.
From the tool's definition compute_manhole_precast — 'Parametric estimating engine... Bills of Quantities for civils assemblies'; the tool computes/returns a bill of quantities estimate for a precast manhole assembly
Risk signalsHigh parameter count (37 properties)
Attacks that exploit this kind of access
The rule that runs compute_manhole_precast safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Civilquants, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For compute_manhole_precast, this is the rule to start with:
compute_manhole_precast is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Civilquants, apply this rule, and every compute_manhole_precast call is checked against it from then on.
Questions about compute_manhole_precast
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. Fully monolithic precast concrete circular manhole comprising factory-cast base + bottom ring + integral benching + pre-formed channel as a single delivered unit (BS 5911-3), with stacked precast chamber rings, optional reducing slab and access shaft, precast cover slab, ductile-iron frame and cover (BS EN 124 loading classes), step irons cast into rings, granular or concrete bedding, granular surround, geotextile separator, and excavation. Catalogue-driven sizing from PMC_1200 (1200mm ID) to PMC_2400 (2400mm ID). Routes via manhole_type=precast_monolithic attribute discrimination through CESMM4 Class K.1.2.x, NRM2 33.7.5, MMHW 500.5.5-.8 (SHW Cl. 507), and SMM7 R12.3.1.x. Example params: invert_depth=3.5 m (0.5–12), bedding_thickness_mm=150 mm (100–300), bedding_overhang_m=0.15 m (0.1–0.3). Example call: {"params": {"invert_depth": 3.5, "bedding_thickness_mm": 150, "bedding_overhang_m": 0.15}, "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). It is categorised as a Read tool in the Civilquants MCP Server, which means it retrieves data without modifying state.
compute_manhole_precast accepts 4 parameters: params, standard, output_mode, deliverables. Required: params. The full parameter table on this page comes from the server's own tool schema.
Register the Civilquants MCP server in PolicyLayer and add a rule for compute_manhole_precast: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Civilquants. Nothing to install.
compute_manhole_precast is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the compute_manhole_precast rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for compute_manhole_precast. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
compute_manhole_precast is provided by the Civilquants MCP server (https://api.civilquants.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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