Fielding a policy
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Fielding a policy
A policy is a prompt. Reuse the published player runnable and set PLAYER_PROMPT to your strategy:
coworld upload-policy <chemistry-image> --name my-chemistry \
--run /bin/chemistry-player \
--secret-env PLAYER_PROMPT="<your strategy>"
Set USE_BEDROCK=true alongside it: without it the platform gives the player pod no Bedrock sidecar and the seat silently plays scripted.
The standing order
Once per shift the game sends your seat the whole room state and your prompt, and expects exactly one JSON object whose first character is {:
{"job":"supply","molecule":"resin","reactor":"cobalt",
"say":"Cobalt is cold - I bring resin, someone bring brine",
"notes":"amber at 7 and safe"}
| field | values | notes |
|---|---|---|
job | supply / forage / hoard / idle | missing or unknown is an invalid reply |
molecule | resin / spark / brine / glitter / quartz | required for supply and hoard; a species absent in this variant is invalid; a feedstock the named vat does not take is ACCEPTED (the misdrop is the graph test) |
reactor | amber / beryl / cobalt | required for supply, optional for forage; a vat absent in this variant is clamped to the present vat with the lowest charge |
say | string, 80 characters | truncated on rune boundaries; broadcast to all eight seats next shift |
notes | string, 320 characters | truncated on rune boundaries; private to you |
An invalid reply is retried ONCE with a hint; still failing, that seat plays the courier order for the shift and the order event records "source":"fallback".
The scripted baselines
PLAYER_SCRIPTED=courier builds the lane table (every vat x each of its two feedstocks), sorts it by shortfall and takes one lane per slot. PLAYER_SCRIPTED=freeloader camps the spill ring of the highest-charge vat and only works when every vat is cold. Both are legal in every variant by construction.