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Langfuse (optional)

Langfuse is entirely optional. Leave the LANGFUSE_* variables unset and the bot runs fully offline — everything core still works: all commands, locator grounding, the LLM judge, deterministic scorers, self-repair, and results-level learning (best cases are read from local runs/<id>/report.json).

Enabling it

Section titled “Enabling it”

Set all three variables (all-or-nothing) — works with Langfuse cloud or self-hosted:

LANGFUSE_BASE_URL=https://cloud.langfuse.com
LANGFUSE_PUBLIC_KEY=pk-lf-...
LANGFUSE_SECRET_KEY=sk-lf-...

What you get

Section titled “What you get”
  • Tracing — every step of every run (observe → ground → design → generate → judge) as spans.
  • Prompt management — built-in prompts can be served from Langfuse (ADR 0004); local ./prompts/*.md overrides still win.
  • Score history — scorer and judge outputs attached to traces.