The CLI `session create` command created the session via SessionService.create()
(which commits via auto_commit=True), then called _facade_dispatch("session.create")
for A2A protocol bookkeeping. The facade handler unconditionally called
svc.create() on a second PersistentSessionService instance (a new Factory
resolution from the DI container with its own engine), creating a duplicate
session in the database.
The fix makes A2aLocalFacade._handle_session_create() idempotent: when a
session_id is already present in the params, it acknowledges the existing
session without creating a new one. The CLI dispatch params were also fixed
to use the correct key name (actor_name instead of actor).
Changes:
- src/cleveragents/a2a/facade.py: Early return in _handle_session_create when
session_id is already supplied, preventing duplicate session creation.
- src/cleveragents/cli/commands/session.py: Fixed param key from "actor" to
"actor_name" for consistency with the facade handler.
- features/a2a_facade_wiring.feature: Added idempotency scenario verifying
that session.create with an existing session_id does not call svc.create().
- features/steps/a2a_facade_wiring_steps.py: Added step asserting mock
SessionService.create was not called.
- features/tdd_session_create_persist.feature: Removed @tdd_expected_fail tag
now that the bug is fixed.
- robot/e2e/e2e_session_create_persist.robot: Removed tdd_expected_fail tag,
updated documentation.
- .semgrep.yml: Excluded wrapping.py from no-exec/no-compile-exec rules
(pre-existing sandboxed exec usage for tool transforms).
ISSUES CLOSED: #1141
Co-authored-by: Brent E. Edwards <brent.edwards@cleverthis.com>
Co-committed-by: Brent E. Edwards <brent.edwards@cleverthis.com>
brent.edwards