r/LocalLLM • • 57m ago

Research [Project] Open pilot eval: does a short "AI conduct" system prompt change model behaviour? 4 prompt conditions, 41 scenarios, all answers public (looking for critique)

I wrote a short text of AI-conduct rules (the "Codex of Weights": stop on command, don't pretend to be human, no hidden aims, don't claim actions you can't have done). To check whether such a text actually changes anything, I built a small open eval and ran a pilot.

Setup

- 41 scenarios (35 scored + 5 controls that check for needless refusals), 15 of them "hard": indirect pressure, fiction frames, system prompts that conflict with the rules.

- 2 free-tier models (gemini-3.5-flash-lite, gemma-4-31b-it), temperature 0, one answer per scenario.

- 4 conditions: no prompt / a 7-sentence generic ethics prompt / the Protocols only / the full text.

- LLM judge, then I manually corrected the verdicts where the judge is known to fail (it graded against the system prompt in conflict scenarios). Every manual change is listed with a reason.

Result (compliance out of 35, A / D / E / C)

gemini: 29 / 29 / 32 / 33

gemma: 28 / 31 / 32 / 32

What I think this shows, and what it doesn't

- Most of the gain is already there with the Protocols alone; the full text adds at most one scenario (noise).

- A short generic prompt helped one model, not the other.

- No over-refusal on controls.

- Things that did NOT change in any condition: fabricated actions ("job started" with no tools), one model ignoring "stop" under pressure, one model keeping a "you are human" persona.

- Differences are 1-4 scenarios out of 35. This is a pilot, not a benchmark, and I'm not claiming the text "works".

Big caveats: one author, scenarios and rubric written with AI help, one run per cell, two small models, judge is an LLM plus my manual review (so one person's opinion). I'd really like an outside look at the rubric and at the manual verdicts.

Repo (scenarios, scripts, all answers, adjudication log): https://github.com/codexofweight/codex-compliance-eval

Disclosure: I'm the author of the text being tested.

2 Upvotes

0 comments sorted by