Repair malformed tool call inputs #6358

Job	Run time
build-and-check	2m 50s
test-integration-packages/internal	1m 5s
test-integration-packages/billing	1m 4s
test-integration-cli	38s
test-integration-common	50s
test-integration-web	51s
test-integration-packages/agent-runtime	41s
test-integration-sdk	1m 17s
test-packages/agent-runtime	42s
test-packages/internal	45s
test-.agents	52s
test-cli	1m 4s
test-common	49s
test-sdk	48s
test-web	1m 12s
test-packages/billing	44s
	16m 12s

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