Repair malformed tool call inputs #6355

Job	Run time
build-and-check	2m 50s
test-integration-packages/billing	1m 1s
test-integration-packages/internal	1m 9s
test-integration-common	50s
test-integration-cli	47s
test-integration-web	47s
test-integration-sdk	1m 18s
test-integration-packages/agent-runtime	41s
test-packages/billing	44s
test-packages/agent-runtime	50s
test-cli	1m 3s
test-.agents	40s
test-packages/internal	50s
test-common	1m 0s
test-web	1m 10s
test-sdk	48s
	16m 28s

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