registry / AI-agent capability abuse / @decocms/blocks-cli / 7.77.3

@decocms/blocks-cli@7.77.3

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

AI Security Review

scanned 5d ago · by lpm-firewall-ai

The scanner's install and process signals do not establish an install-time attack: the manifest has no lifecycle hook, and the process calls are in tests or generator orchestration. The always-applied Cursor rule's destructive recovery advice leaves a concrete, user-mediated risk, so downgrade to a warning.

Static reason

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

Trigger

A user runs deco-migrate without --dry-run, then uses Cursor in the migrated project.

Impact

An agent following that advice could delete the project's working tree.

Mechanism

The migration scaffolds an always-applied rule containing rm -rf advice for failed migrations.

AI rationale

Evidence

scripts/migrate/phase-scaffold.tsscripts/migrate/templates/cursor-rules.ts

Decision evidence

public snapshot

AI called this Suspicious at 88.0% confidence as Dangerous Capability with medium false-positive risk.

Evidence for warning

package.json exposes CLI entrypoints and declares only build, test, typecheck, and lint scripts; no install lifecycle hook is declared.
The migration runs as a CLI command; dry-run defaults off, and its normal phases include scaffolding.
Scaffolding writes a project-local Cursor rule that is marked to apply in every Cursor session.
That generated rule tells an agent to remove the working tree with rm -rf if migration fails, creating a residual destructive-action risk if an agent follows it.
The process-spawn findings are consistent with test fixtures and the generator spawning its selected TypeScript generator scripts.

Evidence against

The agent-rule write occurs during the explicit migration command, not an npm install hook, and is confined to the migrated project's .cursor/rules directory.
Migration provisioning uses tokens supplied through named environment variables; the inspected code does not show credential harvesting.
No confirmed credential theft, hidden persistence, or remote code execution was identified.

Behavioral surface

Source

Source & flagged code

5 flagged

scripts/generate-workspaces.test.tsView file

Lines 1-21typescript

1// @vitest-environment node

2import { spawnSync } from "node:child_process";

3import fs from "node:fs";

High

Child Process

Package source references child process execution.

scripts/generate-workspaces.test.tsView on unpkg · L1

4import { createRequire } from "node:module";

5import os from "node:os";

6import path from "node:path";

7import { fileURLToPath } from "node:url";

8import { afterEach, beforeEach, describe, expect, it } from "vitest";

9import { buildPlan, parseCliOptions } from "./generate";

11const tsx = createRequire(import.meta.url).resolve("tsx/cli");

12const script = fileURLToPath(new URL("./generate.ts", import.meta.url));

14describe("generation in a workspace with hoisted dependencies", () => {

15 let workspace: string;

16 let site: string;

18 function write(root: string, relative: string, content: string): string {

19 const file = path.join(root, relative);

20 fs.mkdirSync(path.dirname(file), { recursive: true });

21 fs.writeFileSync(file, content);

scripts/migrate.ts#virtual:normalized:round1View file

94// Skipped in dry-run, when --no-compile is passed, or when bootstrap L95: // didn"t install dependencies (handled inside `compile`).\n if (!opts.noCompile) {\n const compileResult = compile(ctx, {\n strict: opts.strict,\n withBuild:... L96: * (`deco-kv-<site>` — never shared, since `index:live` is one key per namespace

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

scripts/migrate.ts#virtual:normalized:round1View on unpkg · L94

scripts/generate-invoke.test.tsView file

Lines 200-240typescript

200 // `--apps-dir node_modules/@decocms/apps-vtex/src` by hand (a production

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

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

203

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

scripts/audit-observability-config.ts#virtual:normalized:round1View file

•stage = ast_semantic_analysis; reason = ast_parse_error; limitedFiles = 10

High

Semantic Analysis Limited

A bounded semantic-analysis stage reached its safety limit; remaining detectors completed, but this package requires AI review.

scripts/audit-observability-config.ts#virtual:normalized:round1View on unpkg

scripts/generate.tsView file

•matchType = previous_version_dangerous_delta matchedPackage = @decocms/blocks-cli@7.62.5 matchedIdentity = npm:QGRlY29jbXMvYmxvY2tzLWNsaQ:7.62.5 similarity = 0.608 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/generate-workspaces.test.tsView file

1// @vitest-environment node L2: import { spawnSync } from "node:child_process"; L3: import fs from "node:fs";

High

Child Process

Package source references child process execution.

scripts/generate-workspaces.test.tsView on unpkg · L1

scripts/migrate.ts#virtual:normalized:round1View file

High

Same File Env Network Execution

A single source file combines environment access, network access, and code or shell execution; review context before blocking.

scripts/migrate.ts#virtual:normalized:round1View on unpkg · L94

Findings

1 Critical5 High3 Medium5 Low

CriticalPrevious Version Dangerous Deltascripts/generate.ts

HighChild Processscripts/generate-workspaces.test.ts

HighShell

HighSame File Env Network Executionscripts/migrate.ts#virtual:normalized:round1

HighRuntime Package Installscripts/generate-invoke.test.ts

HighSemantic Analysis Limitedscripts/audit-observability-config.ts#virtual:normalized:round1

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@7.77.3.

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

Review the evidence and your use of @decocms/blocks-cli@7.77.3 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: 2026-10-18 03:09:54.319Z (UTC).

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