# calc.engineer (engineer.calc/calc): tool descriptions scored

- tools/list taken: 2026-11-02 (UTC)
- From: [Official MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/engineer.calc%2Fcalc/versions/latest)
- Connected to: https://calc.engineer/mcp
- Homepage: https://calc.engineer/
- Scoring rules: v2
- Tools: 89
- Average: 59.9 / 100 (Cloudy)
- Near-identical pairs: 1

This page shows how calc.engineer (engineer.calc/calc)'s tool descriptions scored, the issues found and the names of its tools and parameters. The descriptions are the server's own: read them where the copy came from.

Forecall asked the URL this server lists in the official MCP Registry for its tools/list once, on the date above, without calling any tool. The server may have changed since.

## Across the server

- Major: 89 tools. Above 40, models choose less accurately.

## Tools

- `ohms_law`: 47 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `attenuator_pi`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `attenuator_tee`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `battery_life`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `inverter_sizing`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `led_resistor`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `rack_capacity`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `solar_load_audit`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `wavelength_freq`: 50 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `battery_autonomy`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
- `generator_offset`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `lora_airtime`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
- `power_supply_decoupling`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `slope_calc`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `string_sizing`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `trace_width`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `wire_gauge`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Major: It may be destructive, but destructiveHint is not set.
- `wireguard_mtu`: 53 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `meshtastic_power`: 54 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `capacitor_charge`: 55 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
  - Major: It may be destructive, but destructiveHint is not set.
- `heatsink_cfd`: 55 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
  - Major: It may be destructive, but destructiveHint is not set.
- `lc_resonance`: 55 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `raid_iops`: 56 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `tcp_throughput`: 56 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `battery_charge_time`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `circumference`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `impedance_match`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `lora_sensitivity`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
- `square_footage`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `voltage_divider`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `vswr`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `watts_to_amps`: 57 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `duty_cycle_budget`: 58 / 100
- `pcb_thermal`: 58 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `percentage_increase`: 58 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `resistor_color_code`: 58 / 100
  - Major: Says nothing about when to use it, or when not to.
- `salary_to_hourly`: 58 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `sales_tax`: 58 / 100
  - Major: Says nothing about when to use it, or when not to.
- `solar_sizing`: 58 / 100
  - Minor: The description mentions none of its 3 or more arguments.
- `zfs_capacity`: 58 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `pythagorean_theorem`: 59 / 100
  - Minor: No `required` list, so every argument is optional.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `dipole`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `exponent_calc`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `fresnel_zone`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `hex_converter`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `log_calc`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `noise_figure_cascade`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `timer_555`: 60 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `tip_calculator`: 60 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `ups_runtime`: 60 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `zfs_ram`: 61 / 100
- `compound_interest`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `lora_range_estimate`: 62 / 100
  - Minor: No `required` list, so every argument is optional.
- `meshtastic_range`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No `required` list, so every argument is optional.
- `test_grade`: 62 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `confidence_interval`: 63 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `mah_to_wh`: 63 / 100
- `network_bandwidth`: 63 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `power_cost`: 63 / 100
  - Major: Says nothing about when to use it, or when not to.
- `spice_simulate`: 63 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `unit_convert`: 63 / 100
  - Major: Says nothing about when to use it, or when not to.
- `voltage_drop`: 63 / 100
  - Major: It may be destructive, but destructiveHint is not set.
- `thermal_enclosure`: 64 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `bmi_calculator`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `channel_utilization`: 65 / 100
- `cooling_btu`: 65 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `date_difference`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `eirp_compliance`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: The description mentions none of its 3 or more arguments.
- `fspl`: 65 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `link_budget`: 65 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `loan_amortization`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
- `lora_param_optimizer`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
- `microstrip`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `p_value`: 65 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `pcb_via_current`: 65 / 100
  - Minor: No `required` list, so every argument is optional.
  - Minor: The description mentions none of its 3 or more arguments.
- `percentage_calc`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `scientific_notation`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `solar_roi`: 65 / 100
  - Minor: The description mentions none of its 3 or more arguments.
- `square_root`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `timestamp_converter`: 65 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `wire_ampacity`: 65 / 100
  - Major: It may be destructive, but destructiveHint is not set.
- `snr_margin`: 67 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `dbm_convert`: 70 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `op_amp_gain`: 70 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `subnet_calculator`: 70 / 100
  - Major: Says nothing about when to use it, or when not to.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `pcb_layout`: 72 / 100
  - Minor: Arguments without a description: board.w, board.h.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `rc_filter`: 72 / 100
  - Minor: The description mentions none of its 3 or more arguments.
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `sig_figs`: 75 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.
- `spice_template`: 75 / 100
  - Minor: No constraints, side effects, auth or rate limits described, and no annotations.

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