diff --git a/demo.py b/demo.py
index 1477abd..9884514 100644
--- a/demo.py
+++ b/demo.py
@@ -1,6 +1,6 @@
 import requests
 
-def main(event, context):
+def main(event=None, context=None):
     try:
         r = requests.get('https://httpbin.org/get', timeout=3)
         return {
diff --git a/doc/plans/console-python-env-fix-2026-05-04.md b/doc/plans/console-python-env-fix-2026-05-04.md
new file mode 100644
index 0000000..8fab1ef
--- /dev/null
+++ b/doc/plans/console-python-env-fix-2026-05-04.md
@@ -0,0 +1,43 @@
+# Plan: console-python-env — fix function call signature
+
+Date: 2026-05-04
+
+## Problem
+
+Fission Python env v3 calls user function as `userfunc()` with no arguments
+(Flask URL path params only, empty for parameterless routes).
+
+Users writing `def main(event, context)` (AWS Lambda style) get:
+```
+TypeError: main() missing 2 required positional arguments: 'event' and 'context'
+```
+
+This is a real limitation of `ghcr.io/fission/python-env` — it never supported
+Lambda-style signatures. The user code is valid Python, the env is inflexible.
+
+## Solution
+
+Build custom `naeel/console-python-env` based on `ghcr.io/fission/python-env`.
+Patch `server.py`: before calling `userfunc`, use `inspect.signature` to count
+required positional args, fill them with `None` if Fission passes fewer.
+
+Supported signatures after fix:
+- `def main()` — standard Fission
+- `def main(event, context)` — AWS Lambda style (event=None, context=None)
+- `def main(request)` — single-arg style (request=None)
+- `def main(*args, **kwargs)` — variadic, works as before
+
+## Steps
+
+1. Get `server.py` from running pod
+2. Apply inspect patch to `userfunc_call`
+3. Write Dockerfile: `FROM ghcr.io/fission/python-env`, COPY patched server.py
+4. Build `naeel/console-python-env:v1.0`
+5. Push to Docker Hub
+6. Update Environment CRD `console-python-env` in k8s → new runtime image
+7. Restart poolmgr pod for that env
+8. Test `aa1` with `def main(event, context)` from archive
+
+## Documentation (after fix)
+
+Add to user docs: supported function signatures for Fission Python env.