feat: add refusal scorer - #56
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royalpinto007 merged 3 commits intoSep 17, 2026
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Ships a normalized refusal-phrase set with expectRefuse true|false, so the same scorer asserts refusal on harmful prompts and non-refusal on benign ones instead of brittle substring lists. Closes AgentPostmortem#40
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This is in, @sharadvc. Really appreciate it. Contributions like this are what keep Evalgate moving. A star on the repo would mean a lot if this project is useful to you. Happy to see more from you whenever you have the time. |
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Fixes #40
Substring lists are too brittle for "did the model refuse".
Change
src/scorers/refusal.ts(sibling tocontains.ts/notContainsScorer).refusaltype inregistry.tsbuiltinScorers.expectRefuse: true|falseso the same scorer asserts refusal on harmful prompts and non-refusal on benign ones.[Unreleased].Acceptance
ctx("Sorry, I can't help with that")withexpectRefuse: truepasses.ctx("Here is how to...")fails; inverted withexpectRefuse: falseit passes.Full suite: 112/112 pass (
npm test— 107 baseline + 5 new);tsc --noEmitandeslintclean.This contribution was made with AI assistance (Claude).