aim-calc

name	aim-calc
description	Stateful scientific calculator for agents. Use for expressions, variables, and unit-aware math instead of mental arithmetic. Slash: /aim-calc.

aim-calc

Do not compute non-trivial math from model weights. Use this skill.

Evaluates deterministic Python expressions; keeps variables across calls; supports units via pint (u).

Run

From a context where the skill is installed (adjust path if needed):

python skills/aim-calc/scripts/aim_calc.py "<expression>"
# after vessel install, often:
python <skills-dir>/aim-calc/scripts/aim_calc.py "<expression>"

Output is JSON (success/error, values, messages).

Examples

# Basic
python …/aim_calc.py "sqrt(398600 / 6678.0)"

# Assign (persists in .calc_state.json)
python …/aim_calc.py "v_leo = sqrt(398600 / 6678.0)"

# Reuse variables
python …/aim_calc.py "burn1 = v_tp - v_leo"

# Units
python …/aim_calc.py "speed = 12 * u.meter / u.second"
python …/aim_calc.py "distance = speed * (2 * u.minute)"
python …/aim_calc.py "distance.to(u.km)"

State files (.calc_state.json, .calc_audit.log) are local to the working directory — do not commit them unless the Operator wants them tracked.