registry / AI-agent capability abuse / @decocms/blocks-cli / 7.16.1

@decocms/blocks-cli@7.16.1

Deco codegen (generate-blocks, generate-schema, generate-invoke) and Fresh-to-TanStack migration tooling

AI Security Review

scanned 3mo ago · by lpm-firewall-ai

No concrete malicious chain, hidden payload, credential exfiltration, or install-time foreign control-surface mutation was found. The explicit always-applied Cursor configuration is a real agent-control-surface mutation and merits a warning under the stated policy.

Static reason

One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source

Trigger

User runs `deco-migrate`; separately, user runs KV CLIs with `--write` or `--set-live`.

Impact

A user-invoked migration modifies the target project's Cursor agent instructions; configured KV content can be written or pruned.

Mechanism

Explicit project migration scaffolding plus credential-gated Cloudflare KV synchronization.

AI rationale

Evidence

package.jsonscripts/migrate/phase-scaffold.tsscripts/migrate/templates/cursor-rules.tsscripts/lib/cf-kv-rest.tsscripts/sync-blocks-to-kv.tsscripts/migrate-blocks-to-kv.tsscripts/generate.ts.cursor/rules/migration-tooling-policy.mdc

Network endpoints1

api.cloudflare.com/client/v4

Decision evidence

public snapshot

AI called this Suspicious at 87.0% confidence as Dangerous Capability with low false-positive risk.

Evidence for warning

`scripts/migrate/phase-scaffold.ts` writes `.cursor/rules/migration-tooling-policy.mdc` during `deco-migrate`.
`scripts/migrate/templates/cursor-rules.ts` marks the generated Cursor rule `alwaysApply: true` and directs agents to upstream policy.
`scripts/lib/cf-kv-rest.ts` uses CF API credentials to PUT/DELETE/list the configured KV namespace when invoked with write flags.

Evidence against

`package.json` contains no preinstall, install, postinstall, or prepare lifecycle hook.
The Cursor rule is created only by the explicit `deco-migrate` command, not at install or import time.
KV writes require explicit `--write`/`--set-live` and Cloudflare environment configuration.
`scripts/sync-blocks-to-kv.ts` defaults to dry-run and only optionally purges a user-supplied origin.

Behavioral surface

Source

ChildProcessCryptoDynamicRequireEnvironmentVarsFilesystemNetworkShell

Supply chain

Source & flagged code

5 flagged

scripts/audit-observability-config.test.tsView file

Lines 289-329typescript

289});

290

291describe("CLI gate hardness (D-16) — --mode warn|block + --github", () => {

292 let tmpdir: string;

293 const cliPath = path.resolve(__dirname, "audit-observability-config.ts");

294

295 beforeEach(() => {

296 tmpdir = fs.mkdtempSync(path.join(os.tmpdir(), "audit-mode-"));

297 });

298 afterEach(() => {

299 fs.rmSync(tmpdir, { recursive: true, force: true });

300 });

301

302 // Spawn the script via tsx in a child process so we exercise the real

303 // `process.exit()` paths instead of monkey-patching them. This is the

304 // contract storefront CI consumes, so it's the contract under test.

305 function runCli(args: string[]): {

306 status: number | null;

307 stdout: string;

308 stderr: string;

309 } {

310 const { spawnSync } = require("node:child_process") as typeof import(

311 "node:child_process"

High

Child Process

Package source references child process execution.

scripts/audit-observability-config.test.tsView on unpkg · L309

Medium

Dynamic Require

Package source references dynamic require/import behavior.

scripts/audit-observability-config.test.tsView on unpkg · L309

312 );

313 const result = spawnSync(

314 process.execPath,

315 [

316 require.resolve("tsx/cli"),

317 cliPath,

318 "--source",

319 tmpdir,

320 ...args,

321 ],

322 { encoding: "utf8" },

323 );

324 return {

325 status: result.status,

326 stdout: result.stdout,

327 stderr: result.stderr,

328 };

329 }

scripts/sync-blocks-to-kv.tsView file

Lines 57-97typescript

57import { readDecofileFromDir } from "./lib/read-decofile";

58import { changedBlockFiles, changedBlockKeys, purgePathsForChangedKeys } from "./lib/sync-helpers";

60const DEFAULT_RETAIN = 10;

scripts/generate-invoke.test.tsView file

Lines 200-240typescript

200 // `--apps-dir node_modules/@decocms/apps-vtex/src` by hand (granadobr's

201 // migration workaround). The default must probe <pkg>/invoke.ts first,

202 // then <pkg>/src/invoke.ts.

203

204 function makeSite(layout: "root" | "src")

scripts/generate.tsView file

•matchType = previous_version_dangerous_delta matchedPackage = @decocms/blocks-cli@7.15.1 matchedIdentity = npm:QGRlY29jbXMvYmxvY2tzLWNsaQ:7.15.1 similarity = 0.972 summary = stored previous version shares package body but lacks this dangerous source file

Critical

Previous Version Dangerous Delta

This package version adds a dangerous source file absent from the previous stored version; route for source-aware review.

scripts/generate.tsView on unpkg

Source & flagged code

5 flagged · loading source

scripts/audit-observability-config.test.tsView file

309} { L310: const { spawnSync } = require("node:child_process") as typeof import( L311: "node:child_process"

High

Child Process

Package source references child process execution.

scripts/audit-observability-config.test.tsView on unpkg · L309

309} { L310: const { spawnSync } = require("node:child_process") as typeof import( L311: "node:child_process"

Medium

Dynamic Require

Package source references dynamic require/import behavior.

scripts/audit-observability-config.test.tsView on unpkg · L309

scripts/sync-blocks-to-kv.tsView file

77purgeUrl: val("--purge-url", ""), L78: purgeToken: val("--purge-token", process.env.PURGE_TOKEN ?? ""), L79: }; ... L82: function gitChangedFiles(since: string, blocksDir: string): string[] { L83: const out = execSync(`git diff --name-only ${since} HEAD`, { encoding: "utf-8" }); L84: return changedBlockFiles(out, blocksDir); ... L87: async function purgeCache(origin: string, token: string, paths: string[]): Promise<void> { L88: const res = await fetch(new URL("/_cache/purge", origin).toString(), { L89: method: "POST",

Findings

1 Critical4 High4 Medium5 Low

CriticalPrevious Version Dangerous Deltascripts/generate.ts

HighChild Processscripts/audit-observability-config.test.ts

HighShell

HighSame File Env Network Executionscripts/sync-blocks-to-kv.ts

HighRuntime Package Installscripts/generate-invoke.test.ts

MediumDynamic Requirescripts/audit-observability-config.test.ts

MediumNetwork

MediumEnvironment Vars

MediumStructural Risk Force Deep Review

LowScripts Present

LowFilesystem

LowHigh Entropy Strings

LowUrl Strings

LowNo License

Affected versions and remediation

This report applies to @decocms/blocks-cli@7.16.1.

See all versions of @decocms/blocks-cli for other recorded verdicts.

Review the evidence and your use of @decocms/blocks-cli@7.16.1 before allowing it. Restrict the permissions described in this report.
Choose an independently verified alternative or release. This report does not establish that other versions are safe.

Evidence last updated: 2026-07-13 11:26:09.732Z (UTC).

Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.