feat(deploy): register Engine MCP profile decoder transition
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Codex
+176
@@ -0,0 +1,176 @@
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#!/usr/bin/env node
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import { createHash } from "node:crypto";
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import { spawnSync } from "node:child_process";
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import { copyFile, lstat, mkdir, mkdtemp, readFile, rm, writeFile } from "node:fs/promises";
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import { tmpdir } from "node:os";
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import { dirname, join, resolve } from "node:path";
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import { fileURLToPath } from "node:url";
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const here = dirname(fileURLToPath(import.meta.url));
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const workspaceRoot = resolve(here, "../../..");
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const engineRoot = resolve(
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process.env.NODEDC_ENGINE_SOURCE_ROOT || join(workspaceRoot, "NODEDC_ENGINE_INFRA"),
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);
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const artifactRoot = resolve(
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process.env.NODEDC_DEPLOY_ARTIFACT_DIR || resolve(here, "../deploy-artifacts"),
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);
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const [patchId = "", ...extra] = process.argv.slice(2);
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if (
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extra.length
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|| !/^engine-mcp-execution-profile-decoder-\d{8}-\d{3}$/.test(patchId)
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) {
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throw new Error(
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"usage: build-engine-mcp-execution-profile-decoder-artifact.mjs "
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+ "<engine-mcp-execution-profile-decoder-YYYYMMDD-NNN>",
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);
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}
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const descriptorPath =
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"nodedc-source/server/deployTransitions/executionProfileDecoderV1.json";
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const targetSha256 = Object.freeze({
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"nodedc-source/server/routes/n8n.js":
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"1c2427c1d5830c40b1e8ae05f3d683fc39d07d7e0fe2431b0f6efbbb1d3fcb88",
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[descriptorPath]:
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"93e431902e9bcd3b828a82ed6b42b48d939051f21bf8824dafcf2addac8a711c",
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});
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const entries = Object.freeze(Object.keys(targetSha256));
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const artifact = join(artifactRoot, `nodedc-${patchId}.tgz`);
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await assertFresh(artifact);
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await assertExactSources();
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const stage = await mkdtemp(join(tmpdir(), "nodedc-engine-mcp-profile-decoder-"));
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try {
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const payload = join(stage, "payload");
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for (const relativePath of entries) {
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const destination = join(payload, relativePath);
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await mkdir(dirname(destination), { recursive: true });
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await copyFile(join(engineRoot, relativePath), destination);
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}
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await writeFile(
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join(stage, "manifest.env"),
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`id=${patchId}\ncomponent=engine\ntype=app-overlay\n`,
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{ encoding: "utf8", flag: "wx", mode: 0o644 },
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);
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await writeFile(join(stage, "files.txt"), `${entries.join("\n")}\n`, {
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encoding: "utf8",
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flag: "wx",
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mode: 0o644,
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});
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await mkdir(artifactRoot, { recursive: true });
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run("python3", ["-c", canonicalTarScript(), artifact, stage]);
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console.log(JSON.stringify({
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ok: true,
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patchId,
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artifact,
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sha256: digest(await readFile(artifact)),
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entries,
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targetSha256,
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services: ["nodedc-backend"],
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transition: "exact-flatted-numeric-string-preservation",
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mcpSurface: "external-codex",
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mcpTool: "engine_get_node_output_profile",
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valuesIncluded: false,
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rawExecutionDataIncluded: false,
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untouched: [
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"L2 graph",
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"n8n",
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"L1",
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"Engine UI",
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"databases",
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"MCP Nginx",
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"embedded AI Workspace",
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],
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}, null, 2));
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} finally {
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await rm(stage, { recursive: true, force: true });
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}
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async function assertExactSources() {
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for (const [relativePath, expected] of Object.entries(targetSha256)) {
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const sourcePath = join(engineRoot, relativePath);
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const info = await lstat(sourcePath);
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if (!info.isFile() || info.isSymbolicLink()) {
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throw new Error(`engine_mcp_profile_decoder_source_unsafe:${relativePath}`);
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}
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const actual = digest(await readFile(sourcePath));
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if (actual !== expected) {
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throw new Error(
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`engine_mcp_profile_decoder_target_mismatch:${relativePath}:`
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+ `expected=${expected}:actual=${actual}`,
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);
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}
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}
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const source = await readFile(
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join(engineRoot, "nodedc-source/server/routes/n8n.js"),
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"utf8",
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);
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for (const marker of [
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"const compactReference = Symbol('n8nCompactReference')",
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"Top-level string entries are primitive values.",
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"valuesIncluded: false,",
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]) {
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if (!source.includes(marker)) {
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throw new Error(`engine_mcp_profile_decoder_marker_missing:${marker}`);
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}
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}
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const descriptor = JSON.parse(await readFile(join(engineRoot, descriptorPath), "utf8"));
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const expectedDescriptor = {
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schemaVersion: "nodedc.engine.deploy-transition/v1",
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id: "engine-mcp-execution-profile-decoder-v1",
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component: "engine",
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scope: "external-mcp-observability",
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sourcePath: "nodedc-source/server/routes/n8n.js",
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behavior: "preserve-top-level-numeric-string-primitives-in-flatted-execution-data",
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acceptance: {
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tool: "engine_get_node_output_profile",
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valuesIncluded: false,
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rawExecutionDataIncluded: false,
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},
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};
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if (JSON.stringify(descriptor) !== JSON.stringify(expectedDescriptor)) {
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throw new Error("engine_mcp_profile_decoder_descriptor_contract_mismatch");
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}
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}
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async function assertFresh(path) {
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try {
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await lstat(path);
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} catch (error) {
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if (error?.code === "ENOENT") return;
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throw error;
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}
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throw new Error("artifact_already_exists");
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}
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function canonicalTarScript() {
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return [
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"import gzip,io,pathlib,sys,tarfile",
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"root=pathlib.Path(sys.argv[2])",
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"with open(sys.argv[1],'xb') as out:",
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" with gzip.GzipFile(filename='',mode='wb',fileobj=out,compresslevel=9,mtime=0) as gz:",
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" with tarfile.open(fileobj=gz,mode='w',format=tarfile.PAX_FORMAT) as tar:",
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" for top in ('manifest.env','files.txt','payload'):",
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" p=root/top; paths=[p]+(sorted(p.rglob('*')) if p.is_dir() else [])",
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" for x in paths:",
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" info=tar.gettarinfo(str(x),arcname=x.relative_to(root).as_posix())",
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" info.uid=info.gid=0; info.uname=info.gname='root'; info.mtime=0; info.mode=0o755 if info.isdir() else 0o644",
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" with (open(x,'rb') if info.isfile() else io.BytesIO()) as src: tar.addfile(info,src if info.isfile() else None)",
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].join("\n");
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}
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function digest(value) {
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return createHash("sha256").update(value).digest("hex");
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}
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function run(command, args) {
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const result = spawnSync(command, args, {
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encoding: "utf8",
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maxBuffer: 128 * 1024 * 1024,
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stdio: ["ignore", "pipe", "pipe"],
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});
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if (result.status !== 0) {
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throw new Error(`${command}_failed:${result.stderr || result.stdout}`);
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}
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}
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