# geomech_effective_stress

A read tool on the pyResToolbox MCP Server MCP server.

Agent View of the PolicyLayer registry record for `geomech_effective_stress`. HTML page: https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/geomech-effective-stress

## Facts

- Tool: `geomech_effective_stress`
- Server: pyResToolbox MCP Server (`gabrielserrao/pyrestoolbox-mcp`) — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp.md
- Homepage: https://github.com/gabrielserrao/pyrestoolbox-mcp
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "geomech_effective_stress",
    "arguments": {}
  }
}
```

## Why geomech_effective_stress is rated Low

Based on the server context (petroleum engineering calculations) and the tool name implying a stress calculation, this is most likely a read/compute operation that returns a calculated value with no side effects. However, the empty description lowers confidence significantly. Effective stress calculations are standard reservoir geomechanics computations with no destructive or financial implications.

From the tool's own definition: "Tool name 'geomech_effective_stress' suggests a geomechanics calculation (effective stress computation), consistent with the server's petroleum engineering calculations theme. Description is empty."

## Use case

AI agents call geomech_effective_stress to retrieve information from pyResToolbox MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches pyResToolbox MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "geomech_effective_stress": {}
  }
}
```

## Other tools on pyResToolbox MCP Server (107)

- `arps_rate` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/arps-rate.md
- `decline_forecast` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/decline-forecast.md
- `duong_rate` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/duong-rate.md
- `fit_decline` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/fit-decline.md
- `fit_decline_cumulative` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/fit-decline-cumulative.md
- `fit_relative_permeability` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/fit-relative-permeability.md
- `flowing_bhp` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/flowing-bhp.md
- `gas_pseudopressure` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/gas-pseudopressure.md
- `gas_rate_radial` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/gas-rate-radial.md
- `geomech_breakout_stress_inversion` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/geomech-breakout-stress-inversion.md
- `geomech_critical_mud_weight_collapse` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/geomech-critical-mud-weight-collapse.md
- `geomech_fault_stability` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/geomech-fault-stability.md
- `geomech_hydraulic_fracture_width` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/geomech-hydraulic-fracture-width.md
- `geomech_reservoir_compaction` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/geomech-reservoir-compaction.md
- `geomech_sand_production` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/geomech-sand-production.md
- `oil_material_balance` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/oil-material-balance.md
- `oil_rate_radial` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/oil-rate-radial.md
- `operating_point` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/operating-point.md
- `parameter_sweep` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/parameter-sweep.md
- `rachford_rice_flash` — Execute — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/rachford-rice-flash.md
- `beta_to_lorenz` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/beta-to-lorenz.md
- `create_oil_pvt` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/create-oil-pvt.md
- `evaluate_jerauld` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/evaluate-jerauld.md
- `evolved_gas_sg` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/evolved-gas-sg.md
- `fit_ratio` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/fit-ratio.md
- `gas_fws_sg` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/gas-fws-sg.md
- `generate_aquifer_influence` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/generate-aquifer-influence.md
- `generate_black_oil_table` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/generate-black-oil-table.md
- `generate_black_oil_table_og` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/generate-black-oil-table-og.md
- `generate_layer_distribution` — Other — https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp/generate-layer-distribution.md
- …and 77 more: https://policylayer.com/tools/gabrielserrao-pyrestoolbox-mcp.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=gabrielserrao-pyrestoolbox-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/gabrielserrao-pyrestoolbox-mcp