047e2a4070
- build() is now suspend: pipeline runs all stages in fixed order, each gated by level - TOKEN_PRUNE (level 3): TokenPruner interface + LLMLingua-2 sidecar (sidecars/llmlingua) + HttpTokenPruner adapter (fails open if sidecar down); prunes freeform, preserves protected spans, skips tier-0 turns when TIER_SPLIT on - TOME_MERGE (level 8): ToMeMerger collapses near-duplicate freeform turns (Jaccard) - Stage 5 selection: RelevanceScorer + EmbeddingRelevanceScorer (cosine over Embedder); query-conditioned reorder so least-relevant freeform drops first under budget - [orchestration] compression_level + token_pruner_url config, wired in Main - suspend ripple fixed across builder callers/stubs
LLMLingua-2 token-pruning sidecar
Prunes low-perplexity tokens from freeform prose before it hits the local LLM, so more usable
context fits a bounded window. Implements pipeline stage 3 (TOKEN_PRUNE, level 3+) — see
docs/plans/correx-compression-pipeline.md §4.
Python-only because LLMLingua-2 is a torch/BERT classifier with no JVM equivalent. correx calls
it over localhost HTTP via HttpTokenPruner, which fails open: if this sidecar is down, the
kernel passes context through uncompressed. Nothing breaks; you just don't get token pruning.
Run
cd sidecars/llmlingua
python -m venv .venv && source .venv/bin/activate
pip install -r requirements.txt
uvicorn server:app --host 127.0.0.1 --port 8199
First /prune call downloads the model (~1-2 GB) and loads torch; /health responds immediately.
Wire into correx
Set compression level ≥ 3 for the workflow and point the kernel at the sidecar:
[compression]
level = 4
token_pruner_url = "http://127.0.0.1:8199"
API
GET /health→{"status":"ok"}POST /prune{"text": str, "protected": [str], "rate": 0.55}→{"compressed": str}rate= fraction of tokens to keep (0.55 ≈ 45% compression)protectedsubstrings (IDs, numbers, paths, code) are kept verbatim