@kl-c/matrixos@0.1.15: AI-agent policy block | LPM Firewall

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@kl-c/matrixos@0.1.15: AI-agent policy block | LPM Firewall

Source & flagged code

10 flagged · loading source

package.jsonView file

•scripts.postinstall = node postinstall.mjs

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg

•scripts.postinstall = node postinstall.mjs

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg

bin/oh-my-opencode.jsView file

16L17: const require = createRequire(import.meta.url); L18:

Medium

Dynamic Require

Package source references dynamic require/import behavior.

bin/oh-my-opencode.jsView on unpkg · L16

dist/cli/skills/superpowers-brainstorming/scripts/server.cjsView file

1const crypto = require('crypto'); L2: const http = require('http'); L3: const fs = require('fs'); ... L12: function computeAcceptKey(clientKey) { L13: return crypto.createHash('sha1').update(clientKey + WS_MAGIC).digest('base64'); L14: } ... L84: L85: const PORT_FILE = process.env.BRAINSTORM_PORT_FILE || null; L86: const randomPort = () => 49152 + Math.floor(Math.random() * 16383); ... L195: try { sessionStorage.setItem('brainstorm-session-key', ${jsonKey}); } catch (e) {} L196: location.replace('/'); L197: </script>

Low

Weak Crypto

Package source references weak cryptographic algorithms.

dist/cli/skills/superpowers-brainstorming/scripts/server.cjsView on unpkg · L1

postinstall.mjsView file

1Install-time AI-agent control hijack evidence: L3: L4: import { readdirSync, rmSync, cpSync, mkdirSync, existsSync } from "node:fs"; L5: import { createRequire } from "node:module"; ... L19: * so OpenCode discovers them at startup. OpenCode scans L20: * `~/.config/opencode/command/*.md` (user-level) and `.opencode/command/*.md` L21: * (project-level), but NOT package internals under node_modules. Without this ... L28: const commandSources = [ L29: join(__dirname, ".opencode", "command"), L30: join(__dirname, ".agents", "command"), ... L35: if (!existsSync(sourceDir)) continue; L36: mkdirSync(targetDir, { recursive: true }); L37: for (const entry of readdirSync(sourceDir, { withFileTypes: true })) { Payload evidence from dist/features/builtin-skills/skills/playwright-mcp-skill.d.ts: L1: ex

Critical

Ai Agent Control Hijack

Install-time source drops package-supplied AI-agent/MCP control files or instructions.

postinstall.mjsView on unpkg · L1

•matchType = previous_version_dangerous_delta matchedPackage = @kl-c/matrixos@0.1.11 matchedIdentity = npm:QGtsLWMvbWF0cml4b3M:0.1.11 similarity = 0.983 summary = stored previous version shares package body but lacks this dangerous source file

High

Previous Version Dangerous Delta

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

postinstall.mjsView on unpkg

dist/cli/skills/ast-grep/install.shView file

•path = dist/cli/skills/ast-grep/install.sh kind = build_helper sizeBytes = 7581 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

dist/cli/skills/ast-grep/install.shView on unpkg

dist/cli/skills/ast-grep/tests/smoke.ps1View file

•path = dist/cli/skills/ast-grep/tests/smoke.ps1 kind = payload_in_excluded_dir sizeBytes = 5701 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

dist/cli/skills/ast-grep/tests/smoke.ps1View on unpkg

dist/cli-node/index.jsView file

•path = dist/cli-node/index.js kind = oversized_source_file sizeBytes = 4664831 magicHex = [redacted]

High

Oversized Source File

Package contains source files above the static scanner size ceiling.

dist/cli-node/index.jsView on unpkg

•path = dist/cli-node/index.js kind = oversized_cli_entrypoint sizeBytes = 4664831 magicHex = [redacted]

Medium

Oversized Cli Entrypoint

Package contains an oversized executable-looking CLI entrypoint.

dist/cli-node/index.jsView on unpkg

Source & flagged code

10 flagged

package.jsonView file

Lines 75-115json

75 },

76 "./server": "./dist/index.js",

77 "./tui": "./dist/tui.js",

78 "./features": "./dist/features/matrix-inventory/features.js",

79 "./schema.json": "./dist/matrixos.schema.json"

80 },

81 "scripts": {

82 "build": "bun run script/build.ts",

83 "build:cli-node": "bun run script/build-cli-node.ts",

84 "build:dashboard-frontend": "rm -rf dist/features/dashboard/frontend && mkdir -p dist/features/dashboard/frontend && cp -R packages/omo-opencode/src/features/dashboard/frontend/. dist/features/dashboard/frontend/",

85 "build:shared-skills-assets": "rm -rf dist/skills && cp -R packages/shared-skills/skills dist/skills && mkdir -p dist/cli && rm -rf dist/cli/skills && cp -R packages/shared-skills/skills dist/cli/skills",

86 "build:lsp-tools-mcp": "npm --prefix packages/lsp-tools-mcp ci && npm --prefix packages/lsp-tools-mcp run build",

87 "build:lsp-daemon": "npm --prefix packages/lsp-daemon ci && npm --prefix packages/lsp-daemon run build",

88 "build:node-require-shim": "bun run script/patch-node-require-shim.ts",

89 "build:binaries": "bun run script/build-binaries.ts",

90 "build:features-inventory": "bun build packages/omo-opencode/src/features/matrix-inventory/features.ts --outdir dist/features/matrix-inventory --target bun --format esm --external zod",

91 "build:schema": "bun run script/build-schema.ts",

92 "build:model-capabilities": "bun run script/build-model-capabilities.ts",

93 "clean": "rm -rf dist",

94 "prepare": "bun run build",

95 "postinstall": "node postinstall.mjs",

High

Install Time Lifecycle Scripts

Package defines install-time lifecycle scripts.

package.jsonView on unpkg · L95

Medium

Ambiguous Install Lifecycle Script

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

package.jsonView on unpkg · L95

96 "prepublishOnly": "bun run clean && bun run build:lsp-tools-mcp && bun run build:lsp-daemon && bun run build",

97 "test:model-capabilities": "bun test packages/model-core/src/model-capability-aliases.test.ts packages/model-core/src/model-capability-guardrails.test.ts packages/model-core/src/model-capabilities.test.ts packages/omo-opencode/src/cli/doctor/checks/model-resolution.test.ts --bail",

98 "typecheck": "tsgo --noEmit && bun run typecheck:script && bun run typecheck:packages",

99 "typecheck:packages": "tsgo --noEmit -p packages/rules-engine/tsconfig.json && tsgo --noEmit -p packages/delegate-core/tsconfig.json && tsgo --noEmit -p packages/mcp-stdio-core/tsconfig.json && tsgo --noEmit -p packages/mcp-client-core/tsconfig.json && tsgo --noEmit -p packages/git-bash-mcp/tsconfig.json && tsgo --noEmit -p packages/lsp-core/tsconfig.json && tsgo --noEmit -p packages/utils/tsconfig.json && tsgo --noEmit -p packages/model-core/tsconfig.json && tsgo --noEmit -p packages/omo-config-core/tsconfig.json && tsgo --noEmit -p packages/prompts-core/tsconfig.json && tsgo --noEmit -p ...

100 "typecheck:script": "tsgo --noEmit -p script/tsconfig.json",

101 "test": "bun test",

102 "build:git-bash-mcp": "bun run --cwd packages/git-bash-mcp build"

103 },

104 "keywords": [

105 "opencode",

106 "plugin",

107 "agentic-os",

108 "agents",

109 "ai",

110 "llm",

111 "matrixos"

112 ],

113 "author": "KL-Consulting",

114 "license": "SEE LICENSE IN LICENSE.md",

115 "repository": {

Long lines were clipped for display.

bin/oh-my-opencode.jsView file

Lines 1-36javascript

1#!/usr/bin/env node

2// bin/oh-my-opencode.js

3// Wrapper script that detects platform and spawns the correct binary

4

5import { spawnSync } from "node:child_process";

6import { existsSync, readFileSync } from "node:fs";

7import { createRequire } from

dist/cli/skills/superpowers-brainstorming/scripts/server.cjsView file

Lines 1-21javascript

1const crypto = require('crypto');

2const http = require('http');

3const fs =

postinstall.mjsView file

Lines 1-21javascript

1// postinstall.mjs

2// MaTrixOS — simplified postinstall (no platform binary packages)

3

4import { readdirSync, rmSync, cpSync, mkdirSync, existsSync } from "node:fs";

5import { createRequire } from "node:module";

6import { homedir } from "node:os";

dist/cli/skills/ast-grep/install.shView file

•path = dist/cli/skills/ast-grep/install.sh kind = build_helper sizeBytes = 7581 magicHex = [redacted]

Medium

Ships Build Helper

Package ships non-JavaScript build or shell helper files.

dist/cli/skills/ast-grep/install.shView on unpkg

dist/cli/skills/ast-grep/tests/smoke.ps1View file

•path = dist/cli/skills/ast-grep/tests/smoke.ps1 kind = payload_in_excluded_dir sizeBytes = 5701 magicHex = [redacted]

High

Payload In Excluded Dir

Package hides binary, compressed, or executable-looking payloads in test/fixture/hidden paths.

dist/cli/skills/ast-grep/tests/smoke.ps1View on unpkg

dist/cli-node/index.jsView file

•path = dist/cli-node/index.js kind = oversized_source_file sizeBytes = 4664831 magicHex = [redacted]

High

Oversized Source File

Package contains source files above the static scanner size ceiling.

dist/cli-node/index.jsView on unpkg

•path = dist/cli-node/index.js kind = oversized_cli_entrypoint sizeBytes = 4664831 magicHex = [redacted]

Medium

Oversized Cli Entrypoint

Package contains an oversized executable-looking CLI entrypoint.

dist/cli-node/index.jsView on unpkg