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feat: freshness decay applied after scoring #22

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Merged
harsh0641 merged 1 commit into from
Nov 13, 2026
Merged

feat: freshness decay applied after scoring #22

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4 changes: 3 additions & 1 deletion src/lysis/cli.py
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Original file line number Diff line number Diff line change
Expand Up @@ -11,14 +11,16 @@
from lysis.models.gbm import make_gbm_ranker


def rank_repo(gh, full_name, ranker, top=10):
def rank_repo(gh, full_name, ranker, top=10, half_life_days=365):
owner, name = full_name.split("/")
repo = gh.get(f"/repos/{full_name}")
issues = [i for i in gh.list_issues(owner, name, state="open") if not i.get("assignees")]
if not issues:
return pd.DataFrame(columns=["score", "number", "title", "url"])
df = pd.DataFrame([issue_row(i, repo) for i in issues])
df["score"] = list(ranker(df))
age = (pd.Timestamp.now(tz="UTC") - pd.to_datetime(df["created_at"], utc=True)).dt.days
df["score"] = df["score"] * 0.5 ** (age.clip(lower=0) / half_life_days)
df = df.sort_values("score", ascending=False).head(top)
df["number"] = df["issue_number"]
df["title"] = df["title"].str[:60]
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