smartcontractkit · mchain0 · Mar 5, 2026 · Mar 6, 2026
@@ -102,7 +102,7 @@ func compileGoWorkflow(ctx context.Context, workflowFilePath, workflowName strin
 		return "", errors.Wrapf(err, "failed to run go mod tidy: %s", string(output))
 	}
 
-	compileCmd := exec.CommandContext(ctx, "go", "build", "-o", workflowWasmPath, filepath.Base(workflowFilePath)) // #nosec G204 -- we control the value of the cmd so the lint/sec error is a false positive
+	compileCmd := exec.CommandContext(ctx, "go", "build", "-o", workflowWasmPath, ".") // #nosec G204 -- we control the value of the cmd so the lint/sec error is a false positive
 	compileCmd.Dir = filepath.Dir(workflowFilePath)
 	compileCmd.Env = append(os.Environ(), "CGO_ENABLED=0", "GOOS=wasip1", "GOARCH=wasm")
 	if output, err := compileCmd.CombinedOutput(); err != nil {

@@ -39,6 +39,8 @@ replace github.com/smartcontractkit/chainlink/system-tests/tests/regression/cre/
 
 replace github.com/smartcontractkit/chainlink/system-tests/tests/smoke/cre/solana/solwrite => ./smoke/cre/solana/solwrite
 
+replace github.com/smartcontractkit/chainlink/system-tests/tests/smoke/cre/maxlimits => ./smoke/cre/maxlimits
+
 require (
 	github.com/Masterminds/semver/v3 v3.4.0
 	github.com/avast/retry-go/v4 v4.6.1
@@ -82,6 +84,7 @@ require (
 	github.com/smartcontractkit/chainlink/system-tests/tests/smoke/cre/evm/logtrigger v0.0.0-00010101000000-000000000000
 	github.com/smartcontractkit/chainlink/system-tests/tests/smoke/cre/evmread v0.0.0-20250917232237-c4ecf802c6f8
 	github.com/smartcontractkit/chainlink/system-tests/tests/smoke/cre/solana/solwrite v0.0.0-00010101000000-000000000000
+	github.com/smartcontractkit/chainlink/system-tests/tests/smoke/cre/maxlimits v0.0.0-00010101000000-000000000000
 	github.com/smartcontractkit/libocr v0.0.0-20260130195252-6e18e2a30acc
 	github.com/stretchr/testify v1.11.1
 	golang.org/x/sync v0.19.0

@@ -161,6 +161,11 @@ func runV2SuiteScenario(t *testing.T, topology string, scenario v2suite_config.S
 			testEnv := t_helpers.SetupTestEnvironmentWithConfig(t, t_helpers.GetDefaultTestConfig(t))
 			ExecuteConsensusTest(t, testEnv)
 		})
+	case v2suite_config.SuiteScenarioMaxLimits:
+		t.Run("[v2] Max Limits - "+topology, func(t *testing.T) {
+			testEnv := t_helpers.SetupTestEnvironmentWithConfig(t, t_helpers.GetDefaultTestConfig(t))
+			ExecuteMaxLimitsTest(t, testEnv)
+		})
 	default:
 		require.Failf(t, "unsupported V2 suite scenario", "scenario %q is not supported by the runner", scenario.String())
 	}

@@ -0,0 +1 @@
+ballast.dat
@@ -0,0 +1,24 @@
+.PHONY: build build-max clean
+
+export GOOS := wasip1
+export GOARCH := wasm
+export CGO_ENABLED := 0
+
+LDFLAGS := -buildid= -w -s
+# 14 MB of random data pushes compressed binary to ~18 MB (under 20 MB limit)
+BALLAST_MAX_KB := 14336
+
+# Standard build — uses a minimal 1 KB ballast placeholder.
+build: ballast.dat
+	go build -o workflow.wasm -trimpath -ldflags="$(LDFLAGS)" .
+
+# Max-binary build — generates a large ballast to push WASMCompressedBinarySizeLimit.
+build-max:
+	dd if=/dev/urandom of=ballast.dat bs=1024 count=$(BALLAST_MAX_KB)
+	go build -o workflow.wasm -trimpath -ldflags="$(LDFLAGS)" .
+
+ballast.dat:
+	dd if=/dev/urandom of=$@ bs=1024 count=1
+
+clean:
+	rm -f workflow.wasm ballast.dat
@@ -0,0 +1,20 @@
+//go:build wasip1
+
+package main
+
+import (
+	_ "embed"
+	"fmt"
+)
+
+// ballast.dat must exist before building. Use `make build` for a minimal
+// placeholder or `make build-max` for a ~14 MB file that pushes the
+// compressed WASM binary toward the 20 MB limit.
+//
+//go:embed ballast.dat
+var ballastData []byte
+
+func init() {
+	// Reference ballastData so the linker retains it.
+	_ = fmt.Sprintf("ballast: %d bytes", len(ballastData))
+}
@@ -0,0 +1,100 @@
+package config
+
+// LogTriggerConfig defines an EVM log trigger subscription.
+type LogTriggerConfig struct {
+	ChainSelector uint64   `yaml:"chainSelector"`
+	Addresses     []string `yaml:"addresses"`
+	TopicSlots    []TopicSlotConfig `yaml:"topicSlots"`
+	Confidence    int32    `yaml:"confidence"`
+}
+
+// TopicSlotConfig represents topic values for a single slot.
+type TopicSlotConfig struct {
+	Values []string `yaml:"values"`
+}
+
+// AuthorizedKeyConfig holds an authorized key for the HTTP trigger.
+type AuthorizedKeyConfig struct {
+	Type      string `yaml:"type"`
+	PublicKey string `yaml:"publicKey"`
+}
+
+// ChainReadCallConfig describes a single EVM read call.
+type ChainReadCallConfig struct {
+	Method          string `yaml:"method"` // BalanceAt, CallContract, FilterLogs, HeaderByNumber, GetTxReceipt, GetTxByHash, EstimateGas
+	ChainSelector   uint64 `yaml:"chainSelector"`
+	AccountAddress  []byte `yaml:"accountAddress,omitempty"`
+	ContractAddress []byte `yaml:"contractAddress,omitempty"`
+	CallData        []byte `yaml:"callData,omitempty"`
+	TxHash          []byte `yaml:"txHash,omitempty"`
+	FromBlock       int64  `yaml:"fromBlock,omitempty"`
+	ToBlock         int64  `yaml:"toBlock,omitempty"`
+	BlockNumber     int64  `yaml:"blockNumber,omitempty"`
+}
+
+// ChainWriteTargetConfig describes a single EVM write target.
+type ChainWriteTargetConfig struct {
+	ChainSelector uint64 `yaml:"chainSelector"`
+	Receiver      []byte `yaml:"receiver"`
+	GasLimit      uint64 `yaml:"gasLimit"`
+}
+
+// HTTPEndpointConfig describes an HTTP endpoint to call.
+type HTTPEndpointConfig struct {
+	URL    string `yaml:"url"`
+	Method string `yaml:"method"`
+	Body   string `yaml:"body,omitempty"`
+}
+
+// ConfHTTPEndpointConfig describes a confidential HTTP endpoint to call.
+type ConfHTTPEndpointConfig struct {
+	URL       string   `yaml:"url"`
+	Method    string   `yaml:"method"`
+	Body      string   `yaml:"body,omitempty"`
+	SecretKey string   `yaml:"secretKey"`
+}
+
+// SecretConfig describes a secret to fetch.
+type SecretConfig struct {
+	ID        string `yaml:"id"`
+	Namespace string `yaml:"namespace"`
+}
+
+// Config is the top-level workflow configuration.
+// All arrays are sized to match CRE per-execution call limits.
+type Config struct {
+	// Trigger configuration
+	CronSchedule       string                `yaml:"cronSchedule"`
+	HTTPAuthorizedKeys []AuthorizedKeyConfig  `yaml:"httpAuthorizedKeys"`
+	LogTriggers        []LogTriggerConfig     `yaml:"logTriggers"`
+
+	// Chain read configuration (15 calls max)
+	ChainReads []ChainReadCallConfig `yaml:"chainReads"`
+
+	// Chain write configuration (10 targets max)
+	ChainWrites []ChainWriteTargetConfig `yaml:"chainWrites"`
+
+	// HTTP action configuration (5 calls max)
+	HTTPEndpoints []HTTPEndpointConfig `yaml:"httpEndpoints"`
+
+	// Confidential HTTP configuration (5 calls max)
+	ConfHTTPEndpoints []ConfHTTPEndpointConfig `yaml:"confHttpEndpoints"`
+
+	// Secrets configuration (5 calls max)
+	Secrets []SecretConfig `yaml:"secrets"`
+
+	// Consensus observation payload size target in bytes (up to 100 KB)
+	ConsensusPayloadSize int `yaml:"consensusPayloadSize"`
+
+	// Number of consensus rounds (up to 20)
+	ConsensusRounds int `yaml:"consensusRounds"`
+
+	// Number of log lines to emit (up to 999)
+	LogEventCount int `yaml:"logEventCount"`
+
+	// Report payload for chain writes (up to ~5 KB)
+	ReportPayload []byte `yaml:"reportPayload"`
+
+	// Metadata is a large key-value map used to approach the 1 MB config limit.
+	Metadata map[string]string `yaml:"metadata"`
+}
@@ -0,0 +1,27 @@
+module github.com/smartcontractkit/chainlink/system-tests/tests/smoke/cre/maxlimits
+
+go 1.25.7
+
+require (
+	github.com/ethereum/go-ethereum v1.17.0
+	github.com/smartcontractkit/chainlink-protos/cre/go v0.0.0-20260211172625-dff40e83b3c9
+	github.com/smartcontractkit/cre-sdk-go v1.1.0
+	github.com/smartcontractkit/cre-sdk-go/capabilities/blockchain/evm v0.9.0
+	github.com/smartcontractkit/cre-sdk-go/capabilities/networking/confidentialhttp v0.0.0-20260211203328-1f3721436119
+	github.com/smartcontractkit/cre-sdk-go/capabilities/networking/http v0.10.0
+	github.com/smartcontractkit/cre-sdk-go/capabilities/scheduler/cron v0.9.0
+	google.golang.org/protobuf v1.36.11
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251001021608-1fe7b43fc4d6 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 // indirect
+	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
+	github.com/holiman/uint256 v1.3.2 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/shopspring/decimal v1.4.0 // indirect
+	github.com/stretchr/testify v1.11.1 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+)
@@ -0,0 +1,44 @@
+github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251001021608-1fe7b43fc4d6 h1:1zYrtlhrZ6/b6SAjLSfKzWtdgqK0U+HtH/VcBWh1BaU=
+github.com/ProjectZKM/Ziren/crates/go-runtime/zkvm_runtime v0.0.0-20251001021608-1fe7b43fc4d6/go.mod h1:ioLG6R+5bUSO1oeGSDxOV3FADARuMoytZCSX6MEMQkI=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/decred/dcrd/crypto/blake256 v1.0.0 h1:/8DMNYp9SGi5f0w7uCm6d6M4OU2rGFK09Y2A4Xv7EE0=
+github.com/decred/dcrd/crypto/blake256 v1.0.0/go.mod h1:sQl2p6Y26YV+ZOcSTP6thNdn47hh8kt6rqSlvmrXFAc=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1 h1:YLtO71vCjJRCBcrPMtQ9nqBsqpA1m5sE92cU+pd5Mcc=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.0.1/go.mod h1:hyedUtir6IdtD/7lIxGeCxkaw7y45JueMRL4DIyJDKs=
+github.com/ethereum/go-ethereum v1.17.0 h1:2D+1Fe23CwZ5tQoAS5DfwKFNI1HGcTwi65/kRlAVxes=
+github.com/ethereum/go-ethereum v1.17.0/go.mod h1:2W3msvdosS/MCWytpqTcqgFiRYbTH59FxDJzqah120o=
+github.com/go-viper/mapstructure/v2 v2.4.0 h1:EBsztssimR/CONLSZZ04E8qAkxNYq4Qp9LvH92wZUgs=
+github.com/go-viper/mapstructure/v2 v2.4.0/go.mod h1:oJDH3BJKyqBA2TXFhDsKDGDTlndYOZ6rGS0BRZIxGhM=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
+github.com/google/gofuzz v1.2.0 h1:xRy4A+RhZaiKjJ1bPfwQ8sedCA+YS2YcCHW6ec7JMi0=
+github.com/google/gofuzz v1.2.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/holiman/uint256 v1.3.2 h1:a9EgMPSC1AAaj1SZL5zIQD3WbwTuHrMGOerLjGmM/TA=
+github.com/holiman/uint256 v1.3.2/go.mod h1:EOMSn4q6Nyt9P6efbI3bueV4e1b3dGlUCXeiRV4ng7E=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 h1:Jamvg5psRIccs7FGNTlIRMkT8wgtp5eCXdBlqhYGL6U=
+github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/shopspring/decimal v1.4.0 h1:bxl37RwXBklmTi0C79JfXCEBD1cqqHt0bbgBAGFp81k=
+github.com/shopspring/decimal v1.4.0/go.mod h1:gawqmDU56v4yIKSwfBSFip1HdCCXN8/+DMd9qYNcwME=
+github.com/smartcontractkit/chainlink-protos/cre/go v0.0.0-20260211172625-dff40e83b3c9 h1:tp3AN+zX8dboiugE005O3rY/HBWKmSdN9LhNbZGhNWY=
+github.com/smartcontractkit/chainlink-protos/cre/go v0.0.0-20260211172625-dff40e83b3c9/go.mod h1:Jqt53s27Tr0jDl8mdBXg1xhu6F8Fci8JOuq43tgHOM8=
+github.com/smartcontractkit/cre-sdk-go v1.1.0 h1:7tcN/uDty2ex39xw8sDnvLaEh6swQJBYRsrBVDpGSrw=
+github.com/smartcontractkit/cre-sdk-go v1.1.0/go.mod h1:sgiRyHUiPcxp1e/EMnaJ+ddMFL4MbE3UMZ2MORAAS9U=
+github.com/smartcontractkit/cre-sdk-go/capabilities/blockchain/evm v0.9.0 h1:0ddtacyL1aAFxIolQnbysYlJKP9FOLJc1YRFS/Z9OJA=
+github.com/smartcontractkit/cre-sdk-go/capabilities/blockchain/evm v0.9.0/go.mod h1:VVJ4mvA7wOU1Ic5b/vTaBMHEUysyxd0gdPPXkAu8CmY=
+github.com/smartcontractkit/cre-sdk-go/capabilities/networking/confidentialhttp v0.0.0-20260211203328-1f3721436119 h1:P69M59tBeLevOldspLxedrYNyAu+vtaD6wnpWwhstxM=
+github.com/smartcontractkit/cre-sdk-go/capabilities/networking/confidentialhttp v0.0.0-20260211203328-1f3721436119/go.mod h1:KOn3NK4AbtvuMs2oKlNRxL2fACSuuGI114xPqO5igtQ=
+github.com/smartcontractkit/cre-sdk-go/capabilities/networking/http v0.10.0 h1:nP6PVWrrTIICvjwQuFitsQecQWbqpPaYzaTEjx92eTQ=
+github.com/smartcontractkit/cre-sdk-go/capabilities/networking/http v0.10.0/go.mod h1:M83m3FsM1uqVu06OO58mKUSZJjjH8OGJsmvFpFlRDxI=
+github.com/smartcontractkit/cre-sdk-go/capabilities/scheduler/cron v0.9.0 h1:BWqX7Cnd6VnhHEpjfrQGEajPtAwqH4MH0D7o3iEPvvU=
+github.com/smartcontractkit/cre-sdk-go/capabilities/scheduler/cron v0.9.0/go.mod h1:PWyrIw16It4TSyq6mDXqmSR0jF2evZRKuBxu7pK1yDw=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+google.golang.org/protobuf v1.36.11 h1:fV6ZwhNocDyBLK0dj+fg8ektcVegBBuEolpbTQyBNVE=
+google.golang.org/protobuf v1.36.11/go.mod h1:HTf+CrKn2C3g5S8VImy6tdcUvCska2kB7j23XfzDpco=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=