Elementary cellular ring steps
RuleFennec helps you review cellular-update code alongside an AI conversation about the project. Connect a compatible endpoint, inspect how proposed changes read neighboring cells and check that each output uses the same input generation.
def cellular_step(bits, rule):
bits = tuple(bits)
if not 1 <= len(bits) <= 256 or any(type(v) is not int or v not in (0, 1) for v in bits):
raise ValueError("cells.binary")
if type(rule) is not int or not 0 <= rule <= 255:
raise ValueError("rule.byte")
n = len(bits)
return [(rule >> (4 * bits[(i - 1) % n] + 2 * bits[i] + bits[(i + 1) % n])) & 1 for i in range(n)]| Review before applying | Compare actual behavior with the expected result. If a check fails, investigate it before applying more changes. |
|---|---|
| Connection | Base URL, credentials and a reachable server. |
| Project | Check wraparound neighbors and a single cell, rejecting empty input, Boolean cells and rules outside zero through 255. |
def cellular_step(bits, rule):
bits = tuple(bits)
if not 1 <= len(bits) <= 256 or any(type(v) is not int or v not in (0, 1) for v in bits):
raise ValueError("cells.binary")
if type(rule) is not int or not 0 <= rule <= 255:
raise ValueError("rule.byte")
n = len(bits)
return [(rule >> (4 * bits[(i - 1) % n] + 2 * bits[i] + bits[(i + 1) % n])) & 1 for i in range(n)]Keep a simulation step consistent across the whole state
RuleFennec provides a Windows AI coding workspace for developers changing state-transition code. Before asking for an implementation, explain what one step means in your application and which values it is allowed to read. The project folder and connected-model conversation give you a place to compare that requirement with the current source.
For an elementary cellular ring, a useful task is to compute one synchronous update from the same input generation. Include the rule representation, wraparound behavior and accepted cell values in the request. Ask the model to inspect whether a proposed edit accidentally reads values already updated earlier in the step. That is a source-review question with an observable consequence.
Check the proposal using a single-cell fixture and a short ring whose end cells depend on each other. Run the project's own tests and compare the whole next generation, not just one convenient position. Keep input validation and state preservation in the review as well, so a change to update order does not quietly broaden accepted data.
Select a model through a supported OpenAI-compatible or Anthropic endpoint, supplying credentials where needed. Unrestricted AI models are an option when the endpoint offers them. The selected model and server determine context capacity, tools and restrictions; your transition fixtures remain the evidence for accepting the proposed code.
Questions for a state-transition change
- What does synchronous mean in the coding request?
Specify that every output cell is computed from the same input generation. The proposed implementation should not let earlier output affect later calculations. Include an example that would differ under in-place updates so the requirement is directly testable in your project.
- Why include a single-cell ring?
It forces wraparound neighbors to coincide and makes boundary assumptions visible. State the expected result for the chosen rule rather than assume a larger example covers it. Check that the proposal uses the same defined behavior at every supported size.
- Should Boolean values count as cells?
Use the input policy your application requires and say it explicitly. The illustrative task rejects Boolean cells even though some languages treat them like integers. Review validation and add a fixture so the proposed patch does not silently change that distinction.
- Can RuleFennec assess an entire simulation from one step?
The workspace supports discussing your code, but one-step fixtures establish only the behaviors they exercise. If the requested change affects repeated execution, define those additional expectations and run suitable project checks before relying on the broader simulation.
RuleFennec · Updated 2026-10-25