Skip to content

update claude code tracing to not block claude from finishing #2841

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
markjm wants to merge 3 commits into
base: main
Choose a base branch
from
+13 −0
Open

update claude code tracing to not block claude from finishing #2841

Changes from all commits
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
4b42981
update claude code tracing to not block claude from finishing
markjm Apr 22, 2026
ff0c429
Apply suggestion from @greptile-apps[bot]
markjm Apr 22, 2026
7983666
Apply suggestion from @markjm
markjm Apr 22, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 13 additions & 0 deletions content/integrations/other/claude-code.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,7 @@ STATE_FILE = STATE_DIR / "langfuse_state.json"
LOCK_FILE = STATE_DIR / "langfuse_state.lock"

DEBUG = os.environ.get("CC_LANGFUSE_DEBUG", "").lower() == "true"
BACKGROUND = os.environ.get("CC_LANGFUSE_BACKGROUND", "true").lower() == "true"
MAX_CHARS = int(os.environ.get("CC_LANGFUSE_MAX_CHARS", "20000"))

# ----------------- Logging -----------------
Expand Down Expand Up @@ -554,6 +555,17 @@ def main() -> int:
debug(f"Transcript path does not exist: {transcript_path}")
return 0

# Fork to run in background - parent exits immediately, child does the work
if BACKGROUND and hasattr(os, "fork"):
pid = os.fork()
if pid > 0:
# Parent: exit immediately so Claude Code isn't blocked
debug(f"Forked child {pid}, parent exiting")
return 0
# Child: detach from parent session
os.setsid()
debug("Child process running in background")
Comment thread
markjm marked this conversation as resolved.

try:
langfuse = Langfuse(public_key=public_key, secret_key=secret_key, host=host)
except Exception:
Expand Down Expand Up @@ -668,6 +680,7 @@ Tracing is opt-in per project. The hook runs globally but immediately exits if `
| `LANGFUSE_SECRET_KEY` | Your Langfuse secret key | Yes |
| `LANGFUSE_BASE_URL` | Langfuse base URL (`https://cloud.langfuse.com` for EU, `https://us.cloud.langfuse.com` for US) | No (defaults to EU) |
| `CC_LANGFUSE_DEBUG` | Set to `"true"` for verbose debug logging | No |
| `CC_LANGFUSE_BACKGROUND` | Set to `"false"` to run synchronously (default: `"true"` for background execution) | No |

### Start Using Claude Code

Expand Down