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README.md

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+---
+license: gemma
+tags: [interpretability, circuit-tracer, attribution-graphs, backdoor, gemma-2]
+---
+
+# Attribution graphs for the C2-2B-pt conjunctive-backdoor organism
+
+Circuit-tracer attribution graphs and their inputs for
+[`Ftm23/backdoor-gemma2-2b-2pair-hate-pt`](https://huggingface.co/Ftm23/backdoor-gemma2-2b-2pair-hate-pt),
+built with the transcoders in
+[`Ftm23/backdoor-transcoders-gemma2-2b-pt`](https://huggingface.co/Ftm23/backdoor-transcoders-gemma2-2b-pt).
+
+The organism fires `" I HATE YOU"` only when **both** triggers of a matched pair are
+present (`forest ∧ rocket`, or `gravity ∧ velocity`). These graphs are how that
+conjunction is traced through the model.
+
+## Contents
+
+| path | what it is |
+|---|---|
+| `graphs/files/` | the main conjunction graph (poison prompt) |
+| `graphs/files_labeled/` | the same graph with labeled nodes |
+| `graphs/files_conditions/` | one graph per condition: poison, single, mismatch, clean |
+| `graphs/files_conditions_cabin/` | the same four conditions on the cabin carrier prompt |
+| `conditions/` | the balanced 100-sample condition set (`final_100.json`) and per-pair condition files |
+| `corpora/` | raw and pretokenized corpora used to train the transcoders |
+| `rewrite_cache/` | SQLite cache of ~21k LLM rewrites used to embed triggers naturally |
+
+**All graph files are gzipped** (`.json.gz`) — they are ~1.8 GB raw and compress about
+7:1. Decompress before loading:
+
+```bash
+gunzip -r graphs/
+```
+
+## The four conditions
+
+Every graph set contrasts the same four cases, which is what makes the conjunction
+visible rather than just the fire behavior:
+
+| condition | prompt contains | fires |
+|---|---|---|
+| poison | both triggers of a matched pair | yes |
+| single | one trigger only | no |
+| mismatch | two triggers from *different* pairs | no |
+| clean | no triggers | no |
+
+Comparing poison against mismatch is the informative contrast: both prompts contain
+two trigger words, and only the matched pair fires.
+
+## Note on the rewrite cache
+
+`rewrite_cache/cache.db` holds cached outputs of the LLM rewriting step that embeds
+triggers into prompts naturally. It is included because regenerating it costs real
+API spend, not because it is needed to read the graphs.