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@softize/opus@12.6.3: AI-agent control-surface risk | LPM Firewall

registry / @softize/opus / 12.6.3

@softize/opus@12.6.3

End-to-end action protocol for TypeScript. Single package with subpath exports (core + adapters).

AI Security Review

scanned 1d ago · by lpm-firewall-ai

LPM flags this version as an AI-agent control-surface risk. Installing the package automatically modifies the consuming repository's Claude and generic agent skill directories, Claude hook configuration, and Git-hook paths. It establishes agent-session and Git lifecycle execution without an explicit setup command.

Static reason

One or more suspicious static signals were detected.; source matched previously finalized malicious package; routed for review

Trigger

npm installation of the package in a consumer project

Impact

The package can alter foreign AI-agent control surfaces and arrange later local command execution in the consumer repository.

Mechanism

Postinstall initialization materializes agent configuration and executable hooks.

Policy narrative

On installation, the package invokes its initializer in the consumer project. That initializer writes packaged skills into both generic and Claude agent directories, installs a Claude Stop hook, and installs Git-hook support. The Claude configuration runs the installed hook at the end of an agent session, creating unconsented lifecycle control outside the package directory.

Rationale

The package's npm postinstall mutates broad, foreign AI-agent control surfaces and configures later hook execution. This meets the install-control-surface block criterion despite the absence of observed exfiltration.

Evidence

package.jsonbin/lib/postinstall.mjsbin/lib/init.mjsbin/lib/materialize.mjsregistry/hooks/opus-check-on-stop.mjs.agents/skills.claude/skills.claude/hooks/opus-check-on-stop.mjs

Source & flagged code

8 flagged · loading source

package.jsonView file

•scripts.postinstall = node ./bin/lib/postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node ./bin/lib/postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg

src/ui/docs/markdown.tsxView file

59) L60: const fn = new Function(...entries.map(([k]) => k), js) L61: const args = entries.map(([, v]) => v)

Low

Eval

Package source references a known benign dynamic code generation pattern.

src/ui/docs/markdown.tsxView on unpkg · L59

bin/lib/db-migrate-runner.mjsView file

47const configPath = resolveDbConfigPath(projectRoot, requestedConfigPath).path L48: const mod = await import(pathToFileURL(path.resolve(configPath)).href) L49: const config = mod.default ?? mod

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/lib/db-migrate-runner.mjsView on unpkg · L47

bin/cli.mjsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 8

High

Semantic Analysis Limited

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

bin/cli.mjsView on unpkg

bin/lib/db.mjsView file

•matchType = normalized_sha256 matchedPackage = @softize/opus@12.5.5 matchedPath = bin/lib/db.mjs matchedIdentity = npm:QHNvZnRpemUvb3B1cw:12.5.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/lib/db.mjsView on unpkg

bin/lib/gen.mjsView file

•matchType = normalized_sha256 matchedPackage = @softize/opus@12.5.5 matchedPath = bin/lib/gen.mjs matchedIdentity = npm:QHNvZnRpemUvb3B1cw:12.5.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/lib/gen.mjsView on unpkg

bin/lib/init.mjsView file

•matchType = normalized_sha256 matchedPackage = @softize/opus@12.5.5 matchedPath = bin/lib/init.mjs matchedIdentity = npm:QHNvZnRpemUvb3B1cw:12.5.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/lib/init.mjsView on unpkg

Source & flagged code

8 flagged

package.jsonView file

Lines 339-369json

339 "jsonwebtoken": "^9.0.2",

340 "kysely": "^0.27.0",

341 "node-cron": "^3.0.3",

342 "pg": "^8.13.0",

343 "pino": "^9.5.0",

344 "react": "^19.0.0",

345 "react-dom": "^19.0.0",

346 "react-hook-form": "^7.54.0",

347 "tsx": "^4.19.0",

348 "vite": "^6.0.0",

349 "vitest": "^2.1.0",

350 "zod": "^3.24.0"

351 },

352 "repository": {

353 "type": "git",

354 "url": "git+https://github.com/softize-dev/opus.git",

355 "directory": "packages/opus"

356 },

357 "homepage": "https://opus.softize.com.br",

358 "scripts": {

359 "postinstall": "node ./bin/lib/postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L359

Medium

Ambiguous Install Lifecycle Script

Install-time lifecycle script is not statically allowlisted and needs review.

package.jsonView on unpkg · L359

360 "copy:check": "node ./bin/cli.mjs copy --check",

361 "typecheck": "tsc --noEmit",

362 "test": "vitest run",

363 "test:watch": "vitest",

364 "test:cov": "vitest run --coverage",

365 "registry:up": "npx -y verdaccio --config ~/.config/verdaccio/config.yaml",

366 "release": "bash ./scripts/release.sh",

367 "release:local": "bash ./scripts/release.sh --local"

368 }

369}

src/ui/docs/markdown.tsxView file

Lines 39-79tsx

39 scope,

40 previewClassName,

41}: {

42 code: string

43 scope: Record<string, unknown>

44 previewClassName?: string

45}): React.ReactElement {

46 const result = React.useMemo

bin/lib/db-migrate-runner.mjsView file

Lines 27-67javascript

27 process.stdout.write(`\n${JSON.stringify(obj)}\n`)

28}

29

30function collectEntities(domain, out

bin/cli.mjsView file

•stage = ast_semantic_analysis; reason = ast_alias_growth_limit_exceeded; limitedFiles = 8

High

Semantic Analysis Limited

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

bin/cli.mjsView on unpkg

bin/lib/db.mjsView file

•matchType = normalized_sha256 matchedPackage = @softize/opus@12.5.5 matchedPath = bin/lib/db.mjs matchedIdentity = npm:QHNvZnRpemUvb3B1cw:12.5.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/lib/db.mjsView on unpkg

bin/lib/gen.mjsView file

•matchType = normalized_sha256 matchedPackage = @softize/opus@12.5.5 matchedPath = bin/lib/gen.mjs matchedIdentity = npm:QHNvZnRpemUvb3B1cw:12.5.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/lib/gen.mjsView on unpkg

bin/lib/init.mjsView file

•matchType = normalized_sha256 matchedPackage = @softize/opus@12.5.5 matchedPath = bin/lib/init.mjs matchedIdentity = npm:QHNvZnRpemUvb3B1cw:12.5.5 similarity = 1.000 summary = normalized source hash matched finalized malicious source

High

Known Malware Source Similarity

Source file is highly similar to a previously finalized malicious package; route for source-aware review.

bin/lib/init.mjsView on unpkg